BCSTM-Player |

.github/workflows/Docs.yml

@@ -0,0 +1,32 @@
+name: 📄
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "*" ]
+
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      # Runs a single command using the runners shell
+      - name: Run a one-line script
+        run: |
+          cd ..
+          git clone https://github.com/NPI-D7/BCSTM-Player.git
+          cp -r BCSTM-Player/RenderD7-alpha0-6-0/* RenderD7/
+          cd RenderD7
+          git config --global user.email "tobid7@outlook.de"
+          git config --global user.name "Tobi-D7"
+          git stage *
+          git commit -m "BCSTM-Player | $COMMIT_HASH"
+          git tag v$CURRENT_DATE
+          git push origin main v$CURRENT_DATE

Docs/custom.css

@@ -1,13 +0,0 @@
-#projectlogo img{
-    max-height: 70px;
-}
-img[src="logotype.svg"]{
-    width:10cm;
-} 
-div.contents{
-    max-width: 85%;
-    margin-left: 2%;
-}
-.textblock h1{
-    border-bottom: 1px solid #666;
-}

README.md

@@ -1,5 +1,2 @@
-# RenderD7 030
+# RenderD7
 Simple and Easey to use UI and Graphics helper.
-
-
-

external/fs.c

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+#include "external/fs.h"
+
+#include <stdio.h>
+#include <string.h>
+
+void Utils_U8_To_U16(u16 *buf, const u8 *input, size_t bufsize) {
+	ssize_t units = utf8_to_utf16(buf, input, bufsize);
+
+	if (units < 0)
+		units = 0;
+
+	buf[units] = 0;
+}
+
+FS_Archive archive, sdmc_archive, nand_archive;
+
+Result FS_OpenArchive(FS_Archive *archive, FS_ArchiveID archiveID) {
+	Result ret = 0;
+
+	if (R_FAILED(ret = FSUSER_OpenArchive(archive, archiveID, fsMakePath(PATH_EMPTY, ""))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_CloseArchive(FS_Archive archive) {
+	Result ret = 0;
+
+	if (R_FAILED(ret = FSUSER_CloseArchive(archive)))
+		return ret;
+
+	return 0;
+}
+
+Result FS_OpenDir(Handle *handle, FS_Archive archive, const char *path) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_OpenDirectory(handle, archive, fsMakePath(PATH_UTF16, path_u16))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_OpenFile(Handle *handle, FS_Archive archive, const char *path, u32 flags, u32 attributes) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_OpenFile(handle, archive, fsMakePath(PATH_UTF16, path_u16), flags, attributes)))
+		return ret;
+
+	return 0;
+}
+
+Result FS_MakeDir(FS_Archive archive, const char *path) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_CreateDirectory(archive, fsMakePath(PATH_UTF16, path_u16), 0)))
+		return ret;
+
+	return 0;
+}
+
+Result FS_CreateFile(FS_Archive archive, const char *path, u64 size) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_CreateFile(archive, fsMakePath(PATH_UTF16, path_u16), 0, size)))
+		return ret;
+
+	return 0;
+}
+
+Result FS_RecursiveMakeDir(FS_Archive archive, const char *path) {
+	Result ret = 0;
+	char buf[256];
+	char *p = NULL;
+	size_t len;
+
+	snprintf(buf, sizeof(buf), "%s", path);
+	len = strlen(buf);
+
+	if (buf[len - 1] == '/')
+		buf[len - 1] = 0;
+
+	for (p = buf + 1; *p; p++) {
+		if (*p == '/') {
+			*p = 0;
+
+			if (!FS_DirExists(archive, buf))
+				ret = FS_MakeDir(archive, buf);
+
+			*p = '/';
+		}
+
+		if (!FS_DirExists(archive, buf))
+			ret = FS_MakeDir(archive, buf);
+	}
+
+	return ret;
+}
+
+bool FS_FileExists(FS_Archive archive, const char *path) {
+	Handle handle;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(FSUSER_OpenFile(&handle, archive, fsMakePath(PATH_UTF16, path_u16), FS_OPEN_READ, 0)))
+		return false;
+
+	if (R_FAILED(FSFILE_Close(handle)))
+		return false;
+
+	return true;
+}
+
+bool FS_DirExists(FS_Archive archive, const char *path) {
+	Handle handle;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(FSUSER_OpenDirectory(&handle, archive, fsMakePath(PATH_UTF16, path_u16))))
+		return false;
+
+	if (R_FAILED(FSDIR_Close(handle)))
+		return false;
+
+	return true;
+}
+
+Result FS_GetFileSize(FS_Archive archive, const char *path, u64 *size) {
+	Result ret = 0;
+	Handle handle;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_OpenFile(&handle, archive, fsMakePath(PATH_UTF16, path_u16), FS_OPEN_READ, 0)))
+		return ret;
+
+	if (R_FAILED(ret = FSFILE_GetSize(handle, size))) {
+		FSFILE_Close(handle);
+		return ret;
+	}
+
+	if (R_FAILED(ret = FSFILE_Close(handle)))
+		return ret;
+
+	return 0;
+}
+
+u64 FS_GetFreeStorage(FS_SystemMediaType media_type) {
+	FS_ArchiveResource resource = {0};
+
+	if (R_SUCCEEDED(FSUSER_GetArchiveResource(&resource, media_type)))
+		return (((u64)resource.freeClusters * (u64)resource.clusterSize));
+
+	return 0;
+}
+
+u64 FS_GetTotalStorage(FS_SystemMediaType media_type) {
+	FS_ArchiveResource resource = {0};
+
+	if (R_SUCCEEDED(FSUSER_GetArchiveResource(&resource, media_type)))
+		return (((u64)resource.totalClusters * (u64)resource.clusterSize));
+
+	return 0;
+}
+
+u64 FS_GetUsedStorage(FS_SystemMediaType media_type) {
+	return (FS_GetTotalStorage(media_type) - FS_GetUsedStorage(media_type));
+}
+
+Result FS_RemoveFile(FS_Archive archive, const char *path) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_DeleteFile(archive, fsMakePath(PATH_UTF16, path_u16))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_RemoveDir(FS_Archive archive, const char *path) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_DeleteDirectory(archive, fsMakePath(PATH_UTF16, path_u16))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_RemoveDirRecursive(FS_Archive archive, const char *path) {
+	Result ret = 0;
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_DeleteDirectoryRecursively(archive, fsMakePath(PATH_UTF16, path_u16))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_RenameFile(FS_Archive archive, const char *old_filename, const char *new_filename) {
+	Result ret = 0;
+
+	u16 old_filename_u16[strlen(old_filename) + 1];
+	Utils_U8_To_U16(old_filename_u16, (const u8 *)old_filename, strlen(old_filename) + 1);
+
+	u16 new_filename_u16[strlen(new_filename) + 1];
+	Utils_U8_To_U16(new_filename_u16, (const u8 *)new_filename, strlen(new_filename) + 1);
+
+	if (R_FAILED(ret = FSUSER_RenameFile(archive, fsMakePath(PATH_UTF16, old_filename_u16), archive, fsMakePath(PATH_UTF16, new_filename_u16))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_RenameDir(FS_Archive archive, const char *old_dirname, const char *new_dirname) {
+	Result ret = 0;
+
+	u16 old_dirname_u16[strlen(old_dirname) + 1];
+	Utils_U8_To_U16(old_dirname_u16, (const u8 *)old_dirname, strlen(old_dirname) + 1);
+
+	u16 new_dirname_u16[strlen(new_dirname) + 1];
+	Utils_U8_To_U16(new_dirname_u16, (const u8 *)new_dirname, strlen(new_dirname) + 1);
+
+	if (R_FAILED(ret = FSUSER_RenameDirectory(archive, fsMakePath(PATH_UTF16, old_dirname_u16), archive, fsMakePath(PATH_UTF16, new_dirname_u16))))
+		return ret;
+
+	return 0;
+}
+
+Result FS_Read(FS_Archive archive, const char *path, u64 size, void *buf) {
+	Result ret = 0;
+	Handle handle;
+
+	u32 bytes_read = 0;
+
+	if (R_FAILED(ret = FS_OpenFile(&handle, archive, path, FS_OPEN_READ, 0)))
+		return ret;
+
+	if (R_FAILED(ret = FSFILE_Read(handle, &bytes_read, 0, buf, size))) {
+		FSFILE_Close(handle);
+		return ret;
+	}
+
+	if (R_FAILED(ret = FSFILE_Close(handle)))
+		return ret;
+
+	return 0;
+}
+
+Result FS_Write(FS_Archive archive, const char *path, const void *buf, u32 size) {
+	Result ret = 0;
+	Handle handle;
+	u32 bytes_written = 0;
+
+	if (FS_FileExists(archive, path))
+		FS_RemoveFile(archive, path);
+
+	u16 path_u16[strlen(path) + 1];
+	Utils_U8_To_U16(path_u16, (const u8 *)path, strlen(path) + 1);
+
+	if (R_FAILED(ret = FSUSER_CreateFile(archive, fsMakePath(PATH_UTF16, path_u16), 0, size)))
+		return ret;
+
+	if (R_FAILED(ret = FSUSER_OpenFile(&handle, archive, fsMakePath(PATH_UTF16, path_u16), FS_OPEN_WRITE, 0)))
+		return ret;
+
+	if (R_FAILED(ret = FSFILE_Write(handle, &bytes_written, 0, buf, size, FS_WRITE_FLUSH))) {
+		FSFILE_Close(handle);
+		return ret;
+	}
+
+	if (R_FAILED(ret = FSFILE_Close(handle)))
+		return ret;
+
+	return 0;
+}
+
+char *FS_GetFileTimestamp(const char *path) {
+	static char timeStr[60];
+	u64 mtime = 0;
+
+	if (R_SUCCEEDED(archive_getmtime(path, &mtime))) {
+		time_t mt = mtime;
+		struct tm *timeStruct = gmtime(&mt);
+
+		int hours = timeStruct->tm_hour;
+		int minutes = timeStruct->tm_min;
+
+		int day = timeStruct->tm_mday;
+		int month = timeStruct->tm_mon + 1; // January being 0
+		int year = timeStruct->tm_year + 1900;
+
+		snprintf(timeStr, 60, "%d/%d/%d %2i:%02i", year, month, day, hours, minutes);
+	}
+	else
+		return NULL;
+
+	return timeStr;
+}

external/fs.h

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+#ifndef _3D_SHELL_FS_H
+#define _3D_SHELL_FS_H
+
+#include <3ds.h>
+
+extern FS_Archive archive, sdmc_archive, nand_archive;
+
+Result FS_OpenArchive(FS_Archive *archive, FS_ArchiveID id);
+Result FS_CloseArchive(FS_Archive archive);
+Result FS_OpenDir(Handle *handle, FS_Archive archive, const char *path);
+Result FS_OpenFile(Handle *handle, FS_Archive archive, const char *path, u32 flags, u32 attributes);
+Result FS_MakeDir(FS_Archive archive, const char *path);
+Result FS_CreateFile(FS_Archive archive, const char *path, u64 size);
+Result FS_RecursiveMakeDir(FS_Archive archive, const char *path);
+bool FS_FileExists(FS_Archive archive, const char *path);
+bool FS_DirExists(FS_Archive archive, const char *path);
+Result FS_GetFileSize(FS_Archive archive, const char *path, u64 *size);
+u64 FS_GetFreeStorage(FS_SystemMediaType media_type);
+u64 FS_GetTotalStorage(FS_SystemMediaType media_type);
+u64 FS_GetUsedStorage(FS_SystemMediaType media_type);
+Result FS_RemoveFile(FS_Archive archive, const char *path);
+Result FS_RemoveDir(FS_Archive archive, const char *path);
+Result FS_RemoveDirRecursive(FS_Archive archive, const char *path);
+Result FS_RenameFile(FS_Archive archive, const char *old_filename, const char *new_filename);
+Result FS_RenameDir(FS_Archive archive, const char *old_dirname, const char *new_dirname);
+Result FS_Read(FS_Archive archive, const char *path, u64 size, void *buf);
+Result FS_Write(FS_Archive archive, const char *path, const void *buf, u32 size);
+char *FS_GetFileTimestamp(const char *path);
+
+#endif

external/tween-engine/Makefile

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+PROJECT = libtween
+CXX = arm-none-eabi-g++
+AR = arm-none-eabi-ar
+CXXFLAGS = -g -Wall -pedantic -std=c++11 -fno-rtti -fno-exceptions
+
+INCLUDES = -Iinclude/
+SOURCES = $(wildcard src/*.cpp) $(wildcard src/*/*.cpp)
+OBJECTS = $(SOURCES:src/%.cpp=build/arm/%.o)
+
+TEST_CXX = g++
+TEST_AR = ar
+TEST_CXXFLAGS = -g -Wall -pedantic -std=c++11 -fno-rtti -fno-exceptions -DTESTING
+TEST_OBJECTS = $(SOURCES:src/%.cpp=build/test/%.o)
+
+.PHONY: all dir clean test
+
+all: dir $(PROJECT).a
+
+test: dir $(PROJECT)-test.a
+
+dir:
+	@mkdir -p build/arm/equations
+	@mkdir -p build/arm/paths
+	@mkdir -p build/test/equations
+	@mkdir -p build/test/paths
+	@mkdir -p lib
+
+$(PROJECT).a: $(OBJECTS)
+	$(AR) rvs lib/$@ $^
+$(PROJECT)-test.a: $(TEST_OBJECTS)
+	$(TEST_AR) rvs lib/$@ $^
+
+clean:
+	@rm -rf build
+	@rm -rf lib
+	@echo "Successfully cleaned."
+
+build/arm/%.o: src/%.cpp
+	$(CXX) $(INCLUDES) $(CXXFLAGS) -c $< -o $@
+	$(CXX) -MM $< > build/arm/$*.d
+
+build/test/%.o: src/%.cpp
+	$(TEST_CXX) $(INCLUDES) $(TEST_CXXFLAGS) -c $< -o $@
+	$(TEST_CXX) -MM $< > build/test/$*.d

external/tween-engine/build/arm/BaseTween.d

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+BaseTween.o: src/BaseTween.cpp

external/tween-engine/build/arm/Tween.d

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+Tween.o: src/Tween.cpp

external/tween-engine/build/arm/TweenEquations.d

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+TweenEquations.o: src/TweenEquations.cpp

external/tween-engine/build/arm/TweenManager.d

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+TweenManager.o: src/TweenManager.cpp

external/tween-engine/build/arm/TweenPaths.d

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+TweenPaths.o: src/TweenPaths.cpp

external/tween-engine/build/arm/TweenPool.d

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+TweenPool.o: src/TweenPool.cpp

external/tween-engine/build/arm/equations/Back.d

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+Back.o: src/equations/Back.cpp

external/tween-engine/build/arm/equations/Bounce.d

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+Bounce.o: src/equations/Bounce.cpp

external/tween-engine/build/arm/equations/Circ.d

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+Circ.o: src/equations/Circ.cpp

external/tween-engine/build/arm/equations/Cubic.d

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+Cubic.o: src/equations/Cubic.cpp

external/tween-engine/build/arm/equations/Elastic.d

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+Elastic.o: src/equations/Elastic.cpp

external/tween-engine/build/arm/equations/Expo.d

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+Expo.o: src/equations/Expo.cpp

external/tween-engine/build/arm/equations/Linear.d

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+Linear.o: src/equations/Linear.cpp

external/tween-engine/build/arm/equations/Quad.d

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+Quad.o: src/equations/Quad.cpp

external/tween-engine/build/arm/equations/Quart.d

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+Quart.o: src/equations/Quart.cpp

external/tween-engine/build/arm/equations/Quint.d

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+Quint.o: src/equations/Quint.cpp

external/tween-engine/build/arm/equations/Sine.d

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+Sine.o: src/equations/Sine.cpp

external/tween-engine/build/arm/paths/CatmullRom.d

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+CatmullRom.o: src/paths/CatmullRom.cpp

external/tween-engine/build/arm/paths/LinearPath.d

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+LinearPath.o: src/paths/LinearPath.cpp

external/tween-engine/include/TweenEngine/BaseTween.h

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+//
+//  BaseTween.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * BaseTween is the base class of Tween and Timeline. It defines the
+ * iteration engine used to play animations for any number of times, and in
+ * any direction, at any speed.
+ * <p/>
+ *
+ * It is responsible for calling the different callbacks at the right moments,
+ * and for making sure that every callbacks are triggered, even if the update
+ * engine gets a big delta time at once.
+ *
+ * @see Tween
+ * @see Timeline
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __BaseTween__
+#define __BaseTween__
+
+#include <functional>
+#include <map>
+#include <TweenEngine/TweenCallback.h>
+
+namespace TweenEngine
+{
+    class TweenManager;
+
+	typedef std::function<void(BaseTween* source)> TweenCallbackFunction;
+    
+    class BaseTween
+    {
+    private:
+        // General
+        int step;
+        int repeatCnt;
+        bool isIterationStep;
+        bool isYoyoFlag;
+        
+        // Timings
+        float repeatDelay;
+        float currentTime;
+        float deltaTime;
+        bool isStartedFlag;     // true when the object is started
+        bool isInitializedFlag; // true after the delay
+        bool isFinishedFlag;    // true when all repetitions are done
+        bool isKilledFlag;      // true if kill() was called
+        bool isPausedFlag;      // true if pause() was called
+        
+        // Misc
+        TweenCallback *callback;
+        int callbackTriggers;
+        void *userData;
+		std::map<int, TweenCallbackFunction> callbacks;
+
+        // Update
+        void initialize();
+        void testRelaunch();
+        void updateStep();
+        void testCompletion();
+        
+    protected:
+        // Timings
+        float delayStart;
+        float duration;
+
+        virtual void reset();
+        virtual void forceStartValues() = 0;
+        virtual void forceEndValues() = 0;
+        virtual void initializeOverride();
+        virtual void updateOverride(int step, int lastStep, bool isIterationStep, float delta);
+        virtual void forceToStart();
+        virtual void forceToEnd(float time);
+        
+        void callCallback(int type);
+        bool isReverse(int step);
+        bool isValid(int step);
+
+    public:
+        virtual ~BaseTween() {}
+
+        virtual int getTweenCount() = 0;
+        virtual int getTimelineCount() = 0;
+
+        // Package access
+        bool isAutoRemoveEnabled;
+        bool isAutoStartEnabled;
+
+        virtual BaseTween &build();
+        BaseTween &start();
+        BaseTween &start(TweenManager &manager);
+        BaseTween &delay(float delay);
+        void kill();
+        virtual void free();
+        void pause();
+        void resume();
+        BaseTween &repeat(int count, float delay);
+        BaseTween &repeatYoyo(int count, float delay);
+        BaseTween &setCallback(TweenCallback *callback);
+        BaseTween &setCallback(int type, const TweenCallbackFunction& callback);
+        BaseTween &setCallbackTriggers(int flags);
+        BaseTween &setUserData(void *data);
+        
+        // Getters
+        float getDelay();
+        float getDuration();
+        int getRepeatCount();
+        float getRepeatDelay();
+        float getFullDuration();
+        void *getUserData();
+        int getStep();
+        float getCurrentTime();
+        bool isStarted();
+        bool isInitialized();
+        bool isFinished();
+        bool isYoyo();
+        bool isPaused();
+        
+        // Update
+        void update(float delta);
+
+    };
+
+}
+
+#endif /* defined(__BaseTween__) */
+
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external/tween-engine/include/TweenEngine/Pool.h

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+//
+//  Pool.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * A light pool of objects that can be resused to avoid allocation.
+ * Based on Nathan Sweet pool implementation
+ */
+
+#ifndef __Pool__
+#define __Pool__
+
+#include <vector>
+ #include <algorithm>
+
+namespace TweenEngine
+{
+    
+    template<typename T>
+    class PoolCallback
+    {
+    public:
+        virtual void onPool(T *obj) = 0;
+        virtual void onUnPool(T *obj) = 0;
+    };
+    
+    template<typename T>
+    class Pool
+    {
+    private:
+        std::vector<T *> objects;
+        PoolCallback<T> *callback;
+        
+    protected:
+        virtual ~Pool() {}
+        virtual T *create()=0;
+        
+    public:
+        Pool(int initCapacity, PoolCallback<T> *callback);
+        T *get();
+        void free(T *obj);
+        void clear();
+        int size();
+        void ensureCapacity(int minCapacity);
+        
+    };
+    
+    // Implementation
+    template <typename T>
+    Pool<T>::Pool(int initCapacity, PoolCallback<T> *cb) : objects(initCapacity), callback(cb)
+    {
+    }
+    
+    template <typename T>
+    T *Pool<T>::get()
+    {
+		T *obj = nullptr;
+        if (objects.empty())
+        {
+            obj = create();
+        }
+        else
+        {
+            obj = objects.back();
+            objects.pop_back();
+            if (obj == nullptr) obj = create();
+        }
+		if (callback != nullptr) callback->onUnPool(obj);
+		return obj;
+	}
+    
+    template <typename T>
+	void  Pool<T>::free(T *obj)
+    {
+		if (obj == nullptr) return;
+        
+        bool contains = (std::find(objects.begin(), objects.end(), obj) != objects.end());
+        
+		if (!contains)
+        {
+			if (callback != nullptr) callback->onPool(obj);
+			objects.push_back(obj);
+		}
+	}
+    
+    template <typename T>
+	void  Pool<T>::clear() { objects.clear(); }
+    
+    template <typename T>
+	int  Pool<T>::size() { return objects.size(); }
+    
+    template <typename T>
+    void  Pool<T>::ensureCapacity(int minCapacity) { objects.reserve(minCapacity); }
+
+}
+
+#endif /* defined(__Pool__) */

external/tween-engine/include/TweenEngine/Tween.h

@@ -0,0 +1,116 @@
+//
+//  Tween.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Tween__
+#define __Tween__
+
+#include <TweenEngine/Tweenable.h>
+#include <TweenEngine/BaseTween.h>
+#include <TweenEngine/Pool.h>
+#include <TweenEngine/TweenEquation.h>
+#include <TweenEngine/TweenPath.h>
+#include <TweenEngine/TweenEquations.h>
+#include <TweenEngine/TweenPaths.h>
+
+namespace TweenEngine
+{
+    class TweenPool;
+    class TweenPoolCallback;
+    
+    class Tween : public BaseTween
+    {
+        friend class TweenPoolCallback;
+        
+    private:
+        static int combinedAttrsLimit;
+        static int waypointsLimit;
+        
+        // Main
+        Tweenable *targetObj;
+        int type;
+        TweenEquation *equation;
+        TweenPath *pathAlgorithm;
+
+        // General
+        bool isFrom;
+        bool isRelative;
+        int combinedAttrsCnt;
+        int waypointsCnt;
+
+        // Values
+        float* startValues;
+        float* targetValues;
+        float* waypoints;
+        
+        // Buffers
+        float *accessorBuffer;
+        int accessorBufferSize;
+        float *pathBuffer;
+        int pathBufferSize;
+
+        //static TweenPoolCallback *poolCallback;
+        static TweenPool &pool;
+        
+        void setup(Tweenable *target, int tweenType, float duration);
+        
+    protected:
+        virtual void reset();
+        virtual void forceStartValues();
+        virtual void forceEndValues();
+        virtual void initializeOverride();
+        virtual void updateOverride(int step, int lastStep, bool isIterationStep, float delta);
+        
+    public:
+        static const int ACCESSOR_READ = 0;
+        static const int ACCESSOR_WRITE = 1;
+
+        static void setCombinedAttributesLimit(int limit);
+        static void setWaypointsLimit(int limit);
+        static const char *getVersion();
+        
+        static int getPoolSize();
+        static void ensurePoolCapacity(int minCapacity);
+
+        static Tween &to(Tweenable& target, int tweenType, float duration);
+        static Tween &from(Tweenable& target, int tweenType, float duration);
+        static Tween &set(Tweenable& target, int tweenType);
+        static Tween &call(TweenCallback &callback);
+        static Tween &mark();
+        
+        Tween();
+        ~Tween();
+
+        virtual int getTweenCount();
+        virtual int getTimelineCount();
+        
+        virtual Tween &build();
+        virtual void free();
+        
+        Tween &ease(TweenEquation &easeEquation);
+        Tween &target(float targetValue);
+        Tween &target(float targetValue1, float targetValue2);
+        Tween &target(float targetValue1, float targetValue2, float targetValue3);
+        Tween &target(float *targetValues, int len);
+        Tween &targetRelative(float targetValue);
+        Tween &targetRelative(float targetValue1, float targetValue2);
+        Tween &targetRelative(float targetValue1, float targetValue2, float targetValue3);
+        Tween &targetRelative(float *targetValues, int len);
+        Tween &waypoint(float targetValue);
+        Tween &waypoint(float targetValue1, float targetValue2);
+        Tween &waypoint(float targetValue1, float targetValue2, float targetValue3);
+        Tween &waypoint(float *targetValues, int len);
+        Tween &path(TweenPath &path);
+        int getType();
+        TweenEquation *getEasing();
+        float *getTargetValues();
+        int getCombinedAttributesCount();
+
+        
+    };
+}
+
+#endif /* defined(__Tween__) */

external/tween-engine/include/TweenEngine/TweenAccessor.h

@@ -0,0 +1,103 @@
+//
+//  TweenAccessor.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * The TweenAccessor interface lets you interpolate any attribute from any
+ * object. Just implement it as you want and register it to the engine by
+ * calling {@link Tween#registerAccessor}.
+ * <p/>
+ *
+ * <h2>Example</h2>
+ *
+ * The following code snippet presents an example of implementation for tweening
+ * a Particle class. This Particle class is supposed to only define a position
+ * with an "x" and an "y" fields, and their associated getters and setters.
+ * <p/>
+ *
+ * <pre> {@code
+ * public class ParticleAccessor implements TweenAccessor<Particle> {
+ *     public static final int X = 1;
+ *     public static final int Y = 2;
+ *     public static final int XY = 3;
+ *
+ *     public int getValues(Particle target, int tweenType, float[] returnValues) {
+ *         switch (tweenType) {
+ *             case X: returnValues[0] = target.getX(); return 1;
+ *             case Y: returnValues[0] = target.getY(); return 1;
+ *             case XY:
+ *                 returnValues[0] = target.getX();
+ *                 returnValues[1] = target.getY();
+ *                 return 2;
+ *             default: assert false; return 0;
+ *         }
+ *     }
+ *
+ *     public void setValues(Particle target, int tweenType, float[] newValues) {
+ *         switch (tweenType) {
+ *             case X: target.setX(newValues[0]); break;
+ *             case Y: target.setY(newValues[1]); break;
+ *             case XY:
+ *                 target.setX(newValues[0]);
+ *                 target.setY(newValues[1]);
+ *                 break;
+ *             default: assert false; break;
+ *         }
+ *     }
+ * }
+ * }</pre>
+ *
+ * Once done, you only need to register this TweenAccessor once to be able to
+ * use it for every Particle objects in your application:
+ * <p/>
+ *
+ * <pre> {@code
+ * Tween.registerAccessor(Particle.class, new ParticleAccessor());
+ * }</pre>
+ *
+ * And that's all, the Tween Engine can no work with all your particles!
+ *
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __TweenAccessor__
+#define __TweenAccessor__
+
+namespace TweenEngine
+{
+    template<class T>
+    class TweenAccessor
+    {
+        
+    public:
+        virtual ~TweenAccessor() {}
+        
+        /**
+         * Gets one or many values from the target object associated to the
+         * given tween type. It is used by the Tween Engine to determine starting
+         * values.
+         *
+         * @param target The target object of the tween.
+         * @param tweenType An integer representing the tween type.
+         * @param returnValues An array which should be modified by this method.
+         * @return The count of modified slots from the returnValues array.
+         */
+        virtual int getValues(T& target,  int tweenType, float *returnValues) = 0;
+
+        /**
+         * This method is called by the Tween Engine each time a running tween
+         * associated with the current target object has been updated.
+         *
+         * @param target The target object of the tween.
+         * @param tweenType An integer representing the tween type.
+         * @param newValues The new values determined by the Tween Engine.
+         */
+        virtual void setValues(T& target, int tweenType, float *newValues) = 0;
+    };
+
+}
+
+#endif /* defined(__TweenAccessor__) */

external/tween-engine/include/TweenEngine/TweenCallback.h

@@ -0,0 +1,65 @@
+//
+//  TweenCallback.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * TweenCallbacks are used to trigger actions at some specific times. They are
+ * used in both Tweens and Timelines. The moment when the callback is
+ * triggered depends on its registered triggers:
+ * <p/>
+ *
+ * <b>BEGIN</b>: right after the delay (if any)<br/>
+ * <b>START</b>: at each iteration beginning<br/>
+ * <b>END</b>: at each iteration ending, before the repeat delay<br/>
+ * <b>COMPLETE</b>: at last END event<br/>
+ * <b>BACK_BEGIN</b>: at the beginning of the first backward iteration<br/>
+ * <b>BACK_START</b>: at each backward iteration beginning, after the repeat delay<br/>
+ * <b>BACK_END</b>: at each backward iteration ending<br/>
+ * <b>BACK_COMPLETE</b>: at last BACK_END event
+ * <p/>
+ *
+ * <pre> {@code
+ * forward :      BEGIN                                   COMPLETE
+ * forward :      START    END      START    END      START    END
+ * |--------------[XXXXXXXXXX]------[XXXXXXXXXX]------[XXXXXXXXXX]
+ * backward:      bEND  bSTART      bEND  bSTART      bEND  bSTART
+ * backward:      bCOMPLETE                                 bBEGIN
+ * }</pre>
+ *
+ * @see Tween
+ * @see Timeline
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __TweenCallback__
+#define __TweenCallback__
+
+namespace TweenEngine
+{
+    class BaseTween;
+    
+    class TweenCallback
+    {
+        
+    public:
+        static const int BEGIN = 0x01;
+        static const int START = 0x02;
+        static const int END = 0x04;
+        static const int COMPLETE = 0x08;
+        static const int BACK_BEGIN = 0x10;
+        static const int BACK_START = 0x20;
+        static const int BACK_END = 0x40;
+        static const int BACK_COMPLETE = 0x80;
+        static const int ANY_FORWARD = 0x0F;
+        static const int ANY_BACKWARD = 0xF0;
+        static const int ANY = 0xFF;
+        
+        virtual ~TweenCallback() {}
+        virtual void onEvent(int type, BaseTween *source) = 0;
+    };
+    
+}
+#endif /* defined(__TweenCallback__) */

external/tween-engine/include/TweenEngine/TweenEquation.h

@@ -0,0 +1,46 @@
+//
+//  TweenEquation.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * Base class for every easing equation. You can create your own equations
+ * and directly use them in the Tween engine by inheriting from this class.
+ *
+ * @see Tween
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __TweenEquation__
+#define __TweenEquation__
+
+//#include <string.h>
+
+namespace TweenEngine
+{
+    class TweenEquation
+    {
+    public:
+        /**
+         * Computes the next value of the interpolation.
+         *
+         * @param t The current time, between 0 and 1.
+         * @return The current value.
+         */
+        virtual float compute(float t) = 0;
+
+        virtual const char *toString() = 0;
+
+        /**
+         * Returns true if the given string is the name of this equation (the name
+         * is returned in the toString() method, don't forget to override it).
+         * This method is usually used to save/load a tween to/from a text file.
+         */
+        //bool isValueOf(const char *str) { return !strcmp(str, toString()); };
+        
+    };
+}
+
+#endif /* defined(__TweenEquation__) */

external/tween-engine/include/TweenEngine/TweenEquations.h

@@ -0,0 +1,63 @@
+//
+//  TweenEquations.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __TweenEquations__
+#define __TweenEquations__
+
+#include <TweenEngine/equations/Quad.h>
+#include <TweenEngine/equations/Linear.h>
+#include <TweenEngine/equations/Back.h>
+#include <TweenEngine/equations/Bounce.h>
+#include <TweenEngine/equations/Circ.h>
+#include <TweenEngine/equations/Cubic.h>
+#include <TweenEngine/equations/Elastic.h>
+#include <TweenEngine/equations/Expo.h>
+#include <TweenEngine/equations/Quart.h>
+#include <TweenEngine/equations/Quint.h>
+#include <TweenEngine/equations/Sine.h>
+
+namespace TweenEngine
+{
+    class TweenEquations
+    {
+    public:
+        static TweenEquation &easeInQuad;
+        static TweenEquation &easeOutQuad;
+        static TweenEquation &easeInOutQuad;
+        static TweenEquation &easeInOutLinear;
+        static TweenEquation &easeInBack;
+        static TweenEquation &easeOutBack;
+        static TweenEquation &easeInOutBack;
+        static TweenEquation &easeInBounce;
+        static TweenEquation &easeOutBounce;
+        static TweenEquation &easeInOutBounce;
+        static TweenEquation &easeInCirc;
+        static TweenEquation &easeOutCirc;
+        static TweenEquation &easeInOutCirc;
+        static TweenEquation &easeInCubic;
+        static TweenEquation &easeOutCubic;
+        static TweenEquation &easeInOutCubic;
+        static TweenEquation &easeInElastic;
+        static TweenEquation &easeOutElastic;
+        static TweenEquation &easeInOutElastic;
+        static TweenEquation &easeInExpo;
+        static TweenEquation &easeOutExpo;
+        static TweenEquation &easeInOutExpo;
+        static TweenEquation &easeInQuart;
+        static TweenEquation &easeOutQuart;
+        static TweenEquation &easeInOutQuart;
+        static TweenEquation &easeInQuint;
+        static TweenEquation &easeOutQuint;
+        static TweenEquation &easeInOutQuint;
+        static TweenEquation &easeInSine;
+        static TweenEquation &easeOutSine;
+        static TweenEquation &easeInOutSine;
+    };
+
+}
+
+#endif /* defined(__TweenEquations__) */

external/tween-engine/include/TweenEngine/TweenManager.h

@@ -0,0 +1,61 @@
+//
+//  TweenManager.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * A TweenManager updates all your tweens and timelines at once.
+ * Its main interest is that it handles the tween/timeline life-cycles for you,
+ * as well as the pooling constraints (if object pooling is enabled).
+ * <p/>
+ *
+ * Just give it a bunch of tweens or timelines and call update() periodically,
+ * you don't need to care for anything else! Relax and enjoy your animations.
+ *
+ * @see Tween
+ * @see Timeline
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __TweenManager__
+#define __TweenManager__
+
+#include <algorithm>
+#include <vector>
+
+#include <TweenEngine/BaseTween.h>
+
+namespace TweenEngine
+{
+    class TweenManager
+    {
+    private:
+        std::vector<BaseTween *>objects;
+
+        bool isPaused = false;
+
+    public:
+        TweenManager();
+        
+        static void setAutoRemove(BaseTween &object, bool value);
+        static void setAutoStart(BaseTween &object, bool value);
+        
+        TweenManager &add(BaseTween &object);
+        void killAll();
+        void ensureCapacity(int minCapacity);
+        void pause();
+        void resume();
+        void update(float delta);
+        int size();
+        
+        // Debug Helpers
+        int getRunningTweensCount();
+        int getRunningTimelinesCount();
+        std::vector<BaseTween *> &getObjects();
+    };
+
+}
+
+#endif /* defined(__TweenManager__) */

external/tween-engine/include/TweenEngine/TweenPath.h

@@ -0,0 +1,37 @@
+//
+//  TweenPath.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * Base class for every paths. You can create your own paths and directly use
+ * them in the Tween engine by inheriting from this class.
+ *
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __TweenPath__
+#define __TweenPath__
+
+namespace TweenEngine
+{
+    class TweenPath
+    {
+    public:
+        /**
+         * Computes the next value of the interpolation, based on its waypoints and
+         * the current progress.
+         *
+         * @param t The progress of the interpolation, between 0 and 1. May be out
+         * of these bounds if the easing equation involves some kind of rebounds.
+         * @param points The waypoints of the tween, from start to target values.
+         * @param pointsCnt The number of valid points in the array.
+         * @return The next value of the interpolation.
+         */
+        virtual float compute(float t, float *points, int pointsCnt) = 0;
+    };
+}
+
+#endif /* defined(__TweenPath__) */

external/tween-engine/include/TweenEngine/TweenPaths.h

@@ -0,0 +1,23 @@
+//
+//  TweenPaths.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __TweenPaths__
+#define __TweenPaths__
+
+#include <TweenEngine/TweenPath.h>
+
+namespace TweenEngine
+{
+    class TweenPaths
+    {
+    public:
+        static TweenPath &linear;
+        static TweenPath &catmullRom;
+    };
+}
+
+#endif /* defined(__TweenPaths__) */

external/tween-engine/include/TweenEngine/TweenPool.h

@@ -0,0 +1,32 @@
+//
+//  TweenPool.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __TweenPool__
+#define __TweenPool__
+
+#include <TweenEngine/Pool.h>
+#include <TweenEngine/Tween.h>
+
+namespace TweenEngine
+{
+    class TweenPoolCallback : public PoolCallback<Tween>
+    {
+    public:
+        void onPool(Tween *obj);
+        void onUnPool(Tween *obj);
+    };
+    
+    class TweenPool : public Pool<Tween>
+    {
+    protected:
+        Tween *create();
+    public:
+        TweenPool();
+        
+    };
+}
+#endif /* defined(__TweenPool__) */

external/tween-engine/include/TweenEngine/Tweenable.h

@@ -0,0 +1,12 @@
+#ifndef __Tweenable__
+#define __Tweenable__
+
+namespace TweenEngine {
+	class Tweenable {
+	public:
+		virtual int getValues(int tweenType, float *returnValues) = 0;
+		virtual void setValues(int tweenType, float *newValues) = 0;
+	};
+}
+
+#endif

external/tween-engine/include/TweenEngine/equations/Back.h

@@ -0,0 +1,37 @@
+//
+//  Back.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Back__
+#define __Back__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class BackIn : public TweenEquation
+    {
+        ~BackIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class BackOut : public TweenEquation
+    {
+        ~BackOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class BackInOut : public TweenEquation
+    {
+        ~BackInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Back__) */

external/tween-engine/include/TweenEngine/equations/Bounce.h

@@ -0,0 +1,38 @@
+//
+//  Bounce.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Bounce__
+#define __Bounce__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class BounceIn : public TweenEquation
+    {
+        ~BounceIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class BounceOut : public TweenEquation
+    {
+        ~BounceOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class BounceInOut : public TweenEquation
+    {
+        ~BounceInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+
+#endif /* defined(__Bounce__) */

external/tween-engine/include/TweenEngine/equations/Circ.h

@@ -0,0 +1,37 @@
+//
+//  Circ.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Circ__
+#define __Circ__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class CircIn : public TweenEquation
+    {
+        ~CircIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class CircOut : public TweenEquation
+    {
+        ~CircOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class CircInOut : public TweenEquation
+    {
+        ~CircInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Circ__) */

external/tween-engine/include/TweenEngine/equations/Cubic.h

@@ -0,0 +1,37 @@
+//
+//  Cubic.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Cubic__
+#define __Cubic__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class CubicIn : public TweenEquation
+    {
+        ~CubicIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class CubicOut : public TweenEquation
+    {
+        ~CubicOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class CubicInOut : public TweenEquation
+    {
+        ~CubicInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Cubic__) */

external/tween-engine/include/TweenEngine/equations/Elastic.h

@@ -0,0 +1,61 @@
+//
+//  Elastic.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Elastic__
+#define __Elastic__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class ElasticIn : public TweenEquation
+    {
+    private:
+        float amplitude;
+        float period;
+        bool isAmplitudeSet;
+        bool isPeriodSet;
+    public:
+        ~ElasticIn();
+        float compute(float t);
+        const char *toString();
+        void setAmplitude(float a);
+        void setPeriod(float p);
+    };
+    
+    class ElasticOut : public TweenEquation
+    {
+    private:
+        float amplitude;
+        float period;
+        bool isAmplitudeSet;
+        bool isPeriodSet;
+    public:
+        ~ElasticOut();
+        float compute(float t);
+        const char *toString();
+        void setAmplitude(float a);
+        void setPeriod(float p);
+    };
+    
+    class ElasticInOut : public TweenEquation
+    {
+    private:
+        float amplitude;
+        float period;
+        bool isAmplitudeSet;
+        bool isPeriodSet;
+    public:
+        ~ElasticInOut();
+        float compute(float t);
+        const char *toString();
+        void setAmplitude(float a);
+        void setPeriod(float p);
+    };
+}
+
+#endif /* defined(__Elastic__) */

external/tween-engine/include/TweenEngine/equations/Expo.h

@@ -0,0 +1,37 @@
+//
+//  Expo.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Expo__
+#define __Expo__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class ExpoIn : public TweenEquation
+    {
+        ~ExpoIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class ExpoOut : public TweenEquation
+    {
+        ~ExpoOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class ExpoInOut : public TweenEquation
+    {
+        ~ExpoInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Expo__) */

external/tween-engine/include/TweenEngine/equations/Linear.h

@@ -0,0 +1,24 @@
+//
+//  Linear.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Linear__
+#define __Linear__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class LinearInOut : public TweenEquation
+    {
+        ~LinearInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+
+#endif /* defined(__Linear__) */

external/tween-engine/include/TweenEngine/equations/Quad.h

@@ -0,0 +1,37 @@
+//
+//  Quad.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Quad__
+#define __Quad__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class QuadIn : public TweenEquation
+    {
+        ~QuadIn();
+        float compute(float t);
+        const char *toString();
+    };
+
+    class QuadOut : public TweenEquation
+    {
+        ~QuadOut();
+        float compute(float t);
+        const char *toString();
+    };
+
+    class QuadInOut : public TweenEquation
+    {
+        ~QuadInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Quad__) */

external/tween-engine/include/TweenEngine/equations/Quart.h

@@ -0,0 +1,37 @@
+//
+//  Quart.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Quart__
+#define __Quart__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class QuartIn : public TweenEquation
+    {
+        ~QuartIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class QuartOut : public TweenEquation
+    {
+        ~QuartOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class QuartInOut : public TweenEquation
+    {
+        ~QuartInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Quart__) */

external/tween-engine/include/TweenEngine/equations/Quint.h

@@ -0,0 +1,37 @@
+//
+//  Quint.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Quint__
+#define __Quint__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class QuintIn : public TweenEquation
+    {
+        ~QuintIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class QuintOut : public TweenEquation
+    {
+        ~QuintOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class QuintInOut : public TweenEquation
+    {
+        ~QuintInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Quint__) */

external/tween-engine/include/TweenEngine/equations/Sine.h

@@ -0,0 +1,37 @@
+//
+//  Sine.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __Sine__
+#define __Sine__
+
+#include <TweenEngine/TweenEquation.h>
+
+namespace TweenEngine
+{
+    class SineIn : public TweenEquation
+    {
+        ~SineIn();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class SineOut : public TweenEquation
+    {
+        ~SineOut();
+        float compute(float t);
+        const char *toString();
+    };
+    
+    class SineInOut : public TweenEquation
+    {
+        ~SineInOut();
+        float compute(float t);
+        const char *toString();
+    };
+}
+
+#endif /* defined(__Sine__) */

external/tween-engine/include/TweenEngine/paths/CatmullRom.h

@@ -0,0 +1,22 @@
+//
+//  CatmullRom.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __CatmullRom__
+#define __CatmullRom__
+
+#include <TweenEngine/TweenPath.h>
+
+namespace TweenEngine
+{
+    class CatmullRom : public TweenPath
+    {
+        float compute(float t, float *points, int pointsCnt);
+        float catmullRomSpline(float a, float b, float c, float d, float t);
+    };
+}
+
+#endif /* defined(__CatmullRom__) */

external/tween-engine/include/TweenEngine/paths/LinearPath.h

@@ -0,0 +1,21 @@
+//
+//  Linear.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef __LinearPath__
+#define __LinearPath__
+
+#include <TweenEngine/TweenPath.h>
+
+namespace TweenEngine
+{
+    class LinearPath : public TweenPath
+    {
+        float compute(float t, float *points, int pointsCnt);
+    };
+}
+
+#endif /* defined(__LinearPath__) */

external/tween-engine/src/BaseTween.cpp

@@ -0,0 +1,525 @@
+//
+//  BaseTween.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+//#define NDEBUG
+
+#include <TweenEngine/BaseTween.h>
+#include <TweenEngine/TweenManager.h>
+
+namespace TweenEngine
+{
+    void BaseTween::reset()
+    {
+        step = -2;
+		repeatCnt = 0;
+		isIterationStep = isYoyoFlag = false;
+        
+		delayStart = duration = repeatDelay = currentTime = deltaTime = 0;
+		isStartedFlag = isInitializedFlag = isFinishedFlag = isKilledFlag = isPausedFlag = false;
+        
+		callback = nullptr;
+		callbackTriggers = TweenCallback::COMPLETE;
+		userData = nullptr;
+		callbacks.clear();
+        
+		isAutoRemoveEnabled = isAutoStartEnabled = true;
+    }
+    
+    //  API
+    
+    /**
+	 * Builds and validates the object. Only needed if you want to finalize a
+	 * tween or timeline without starting it, since a call to ".start()" also
+	 * calls this method.
+	 *
+	 * @return The current object, for chaining instructions.
+	 */
+    BaseTween &BaseTween::build()
+    {
+		return *this;
+	}
+    
+	/**
+	 * Starts or restarts the object unmanaged. You will need to take care of
+	 * its life-cycle. If you want the tween to be managed for you, use a
+	 * {@link TweenManager}.
+	 *
+	 * @return The current object, for chaining instructions.
+	 */
+	BaseTween &BaseTween::start()
+    {
+		build();
+		currentTime = 0;
+		isStartedFlag = true;
+		return *this;
+	}
+
+    /**
+	 * Convenience method to add an object to a manager. Its life-cycle will be
+	 * handled for you. Relax and enjoy the animation.
+	 *
+	 * @return The current object, for chaining instructions.
+	 */
+	BaseTween &BaseTween::start(TweenManager &manager) {
+		manager.add(*this);
+		return *this;
+	}
+
+    /**
+	 * Adds a delay to the tween or timeline.
+	 *
+	 * @param delay A duration.
+	 * @return The current object, for chaining instructions.
+	 */
+	BaseTween &BaseTween::delay(float delay)
+    {
+		this->delayStart += delay;
+		return *this;
+	}
+    
+	/**
+	 * Kills the tween or timeline. If you are using a TweenManager, this object
+	 * will be removed automatically.
+	 */
+	void BaseTween::kill()
+    {
+		isKilledFlag = true;
+	}
+    
+	/**
+	 * Stops and resets the tween or timeline, and sends it to its pool, for
+     +	 * later reuse. Note that if you use a {@link TweenManager}, this method
+     +	 * is automatically called once the animation is finished.
+	 */
+	void BaseTween::free()
+    {
+	}
+    
+	/**
+	 * Pauses the tween or timeline. Further update calls won't have any effect.
+	 */
+	void BaseTween::pause()
+    {
+		isPausedFlag = true;
+	}
+    
+	/**
+	 * Resumes the tween or timeline. Has no effect is it was no already paused.
+	 */
+	void BaseTween::resume()
+    {
+		isPausedFlag = false;
+	}
+    
+	/**
+	 * Repeats the tween or timeline for a given number of times.
+	 * @param count The number of repetitions. For infinite repetition,
+	 * use Tween.INFINITY, or a negative number.
+	 *
+	 * @param delay A delay between each iteration.
+	 * @return The current tween or timeline, for chaining instructions.
+	 */
+	BaseTween &BaseTween::repeat(int count, float delay)
+    {
+		if (isStartedFlag)
+        {
+            //throw new RuntimeException("You can't change the repetitions of a tween or timeline once it is started");
+        }
+        else
+        {
+            repeatCnt = count;
+            repeatDelay = delay >= 0 ? delay : 0;
+            isYoyoFlag = false;
+        }
+		return *this;
+	}
+    
+	/**
+	 * Repeats the tween or timeline for a given number of times.
+	 * Every two iterations, it will be played backwards.
+	 *
+	 * @param count The number of repetitions. For infinite repetition,
+	 * use Tween.INFINITY, or '-1'.
+	 * @param delay A delay before each repetition.
+	 * @return The current tween or timeline, for chaining instructions.
+	 */
+	BaseTween &BaseTween::repeatYoyo(int count, float delay)
+    {
+		if (isStartedFlag)
+        {
+            //throw new RuntimeException("You can't change the repetitions of a tween or timeline once it is started");
+        }
+        else
+        {
+            repeatCnt = count;
+            repeatDelay = delay >= 0 ? delay : 0;
+            isYoyoFlag = true;
+        }
+		return *this;
+	}
+    
+	/**
+	 * Sets the callback. By default, it will be fired at the completion of the
+	 * tween or timeline (event COMPLETE). If you want to change this behavior
+	 * and add more triggers, use the {@link setCallbackTriggers()} method.
+	 *
+	 * @see TweenCallback
+	 */
+	BaseTween &BaseTween::setCallback(TweenCallback *callback)
+    {
+		this->callback = callback;
+		return *this;
+	}
+
+	BaseTween &BaseTween::setCallback(int type, const TweenCallbackFunction& callback)
+	{
+		callbacks[type] = callback;
+		return *this;
+	}
+    
+	/**
+	 * Changes the triggers of the callback. The available triggers, listed as
+	 * members of the {@link TweenCallback} interface, are:
+	 * <p/>
+	 *
+	 * <b>BEGIN</b>: right after the delay (if any)<br/>
+	 * <b>START</b>: at each iteration beginning<br/>
+	 * <b>END</b>: at each iteration ending, before the repeat delay<br/>
+	 * <b>COMPLETE</b>: at last END event<br/>
+	 * <b>BACK_BEGIN</b>: at the beginning of the first backward iteration<br/>
+	 * <b>BACK_START</b>: at each backward iteration beginning, after the repeat delay<br/>
+	 * <b>BACK_END</b>: at each backward iteration ending<br/>
+	 * <b>BACK_COMPLETE</b>: at last BACK_END event
+	 * <p/>
+	 *
+	 * <pre> {@code
+	 * forward :      BEGIN                                   COMPLETE
+	 * forward :      START    END      START    END      START    END
+	 * |--------------[XXXXXXXXXX]------[XXXXXXXXXX]------[XXXXXXXXXX]
+	 * backward:      bEND  bSTART      bEND  bSTART      bEND  bSTART
+	 * backward:      bCOMPLETE                                 bBEGIN
+	 * }</pre>
+	 *
+	 * @param flags one or more triggers, separated by the '|' operator.
+	 * @see TweenCallback
+	 */
+	BaseTween &BaseTween::setCallbackTriggers(int flags)
+    {
+		this->callbackTriggers = flags;
+		return *this;
+	}
+    
+	/**
+	 * Attaches an object to this tween or timeline. It can be useful in order
+	 * to retrieve some data from a TweenCallback.
+	 *
+	 * @param data Any kind of object.
+	 * @return The current tween or timeline, for chaining instructions.
+	 */
+	BaseTween &BaseTween::setUserData(void *data)
+    {
+		userData = data;
+		return *this;
+	}
+    
+    // -------------------------------------------------------------------------
+	// Getters
+	// -------------------------------------------------------------------------
+    
+	/**
+	 * Gets the delay of the tween or timeline. Nothing will happen before
+	 * this delay.
+	 */
+	float BaseTween::getDelay() { return delayStart; }
+    
+	/**
+	 * Gets the duration of a single iteration.
+	 */
+	float BaseTween::getDuration() { return duration; }
+    
+	/**
+	 * Gets the number of iterations that will be played.
+	 */
+    int BaseTween::getRepeatCount() { return repeatCnt; }
+    
+	/**
+	 * Gets the delay occuring between two iterations.
+	 */
+	 float BaseTween::getRepeatDelay() { return repeatDelay; }
+    
+	/**
+	 * Returns the complete duration, including initial delay and repetitions.
+	 * The formula is as follows:
+	 * <pre>
+	 * fullDuration = delay + duration + (repeatDelay + duration) * repeatCnt
+	 * </pre>
+	 */
+	float BaseTween::getFullDuration()
+    {
+		if (repeatCnt < 0) return -1;
+		return delayStart + duration + (repeatDelay + duration) * repeatCnt;
+	}
+    
+	/**
+	 * Gets the attached data, or null if none.
+	 */
+	void *BaseTween::getUserData() { return userData; }
+    
+	/**
+	 * Gets the id of the current step. Values are as follows:<br/>
+	 * <ul>
+	 * <li>even numbers mean that an iteration is playing,<br/>
+	 * <li>odd numbers mean that we are between two iterations,<br/>
+	 * <li>-2 means that the initial delay has not ended,<br/>
+	 * <li>-1 means that we are before the first iteration,<br/>
+	 * <li>repeatCount*2 + 1 means that we are after the last iteration
+	 */
+	int BaseTween::getStep() { return step; }
+    
+	/**
+	 * Gets the local time.
+	 */
+	float BaseTween::getCurrentTime() { return currentTime; }
+    
+	/**
+	 * Returns true if the tween or timeline has been started.
+	 */
+	bool BaseTween::isStarted() { return isStartedFlag; }
+    
+	/**
+	 * Returns true if the tween or timeline has been initialized. Starting
+	 * values for tweens are stored at initialization time. This initialization
+	 * takes place right after the initial delay, if any.
+	 */
+	bool BaseTween::isInitialized() { return isInitializedFlag; }
+    
+	/**
+	 * Returns true if the tween is finished (i.e. if the tween has reached
+	 * its end or has been killed). If you don't use a TweenManager, you may
+	 * want to call {@link free()} to reuse the object later.
+	 */
+	bool BaseTween::isFinished() { return isFinishedFlag || isKilledFlag; }
+    
+	/**
+	 * Returns true if the iterations are played as yoyo. Yoyo means that
+	 * every two iterations, the animation will be played backwards.
+	 */
+	bool BaseTween::isYoyo() { return isYoyoFlag; }
+    
+	/**
+	 * Returns true if the tween or timeline is currently paused.
+	 */
+	bool BaseTween::isPaused() { return isPausedFlag; }
+
+    void BaseTween::initializeOverride() {}
+    
+    void BaseTween::updateOverride(int step, int lastStep, bool isIterationStep, float delta) {}
+    
+    void BaseTween::forceToStart()
+    {
+        currentTime = -delayStart;
+        step = -1;
+        isIterationStep = false;
+        if (isReverse(0)) forceEndValues();
+        else forceStartValues();
+    }
+    
+    void BaseTween::forceToEnd(float time)
+    {
+        currentTime = time - getFullDuration();
+        step = repeatCnt*2 + 1;
+        isIterationStep = false;
+        if (isReverse(repeatCnt*2)) forceStartValues();
+        else forceEndValues();
+    }
+    
+    void BaseTween::callCallback(int type)
+    {
+		auto callback = callbacks.find(type);
+		if (callback != callbacks.end()) {
+			callback->second(this);
+		}
+//        if (callback != nullptr && (callbackTriggers & type) > 0) callback->onEvent(type, this);
+    }
+    
+    bool BaseTween::isReverse(int step)
+    {
+        return isYoyoFlag && abs(step%4) == 2;
+    }
+    
+    bool BaseTween::isValid(int step)
+    {
+        return (step >= 0 && step <= repeatCnt*2) || repeatCnt < 0;
+    }
+    
+    // -------------------------------------------------------------------------
+	// Update engine
+	// -------------------------------------------------------------------------
+    
+	/**
+	 * Updates the tween or timeline state. <b>You may want to use a
+	 * TweenManager to update objects for you.</b>
+	 *
+	 * Slow motion, fast motion and backward play can be easily achieved by
+	 * tweaking this delta time. Multiply it by -1 to play the animation
+	 * backward, or by 0.5 to play it twice slower than its normal speed.
+	 *
+	 * @param delta A delta time between now and the last call.
+	 */
+	void BaseTween::update(float delta)
+    {
+		if (!isStartedFlag || isPausedFlag || isKilledFlag) return;
+        
+		deltaTime = delta;
+        
+		if (!isInitializedFlag) initialize();
+        
+		if (isInitializedFlag)
+        {
+			testRelaunch();
+			updateStep();
+			testCompletion();
+		}
+        
+		currentTime += deltaTime;
+		deltaTime = 0;
+	}
+
+    void BaseTween::initialize() {
+        if (currentTime+deltaTime >= delayStart)
+        {
+            initializeOverride();
+            isInitializedFlag = true;
+            isIterationStep = true;
+            step = 0;
+            deltaTime -= delayStart-currentTime;
+            currentTime = 0;
+            callCallback(TweenCallback::BEGIN);
+            callCallback(TweenCallback::START);
+        }
+    }
+    
+    void BaseTween::testRelaunch()
+    {
+        if (!isIterationStep && repeatCnt >= 0 && step < 0 && currentTime+deltaTime >= 0)
+        {
+            // assert(step == -1);
+            isIterationStep = true;
+            step = 0;
+            float delta = 0-currentTime;
+            deltaTime -= delta;
+            currentTime = 0;
+            callCallback(TweenCallback::BEGIN);
+            callCallback(TweenCallback::START);
+            updateOverride(step, step-1, isIterationStep, delta);
+            
+        }
+        else if (!isIterationStep && repeatCnt >= 0 && step > repeatCnt*2 && currentTime+deltaTime < 0)
+        {
+            // assert(step == repeatCnt*2 + 1);
+            isIterationStep = true;
+            step = repeatCnt*2;
+            float delta = 0-currentTime;
+            deltaTime -= delta;
+            currentTime = duration;
+            callCallback(TweenCallback::BACK_BEGIN);
+            callCallback(TweenCallback::BACK_START);
+            updateOverride(step, step+1, isIterationStep, delta);
+        }
+    }
+    
+    void BaseTween::updateStep()
+    {
+        while (isValid(step))
+        {
+            if (!isIterationStep && currentTime+deltaTime <= 0)
+            {
+                isIterationStep = true;
+                step -= 1;
+                
+                float delta = 0-currentTime;
+                deltaTime -= delta;
+                currentTime = duration;
+                
+                if (isReverse(step)) forceStartValues();
+                else forceEndValues();
+                callCallback(TweenCallback::BACK_START);
+                updateOverride(step, step+1, isIterationStep, delta);
+                
+            }
+            else if (!isIterationStep && currentTime+deltaTime >= repeatDelay)
+            {
+                isIterationStep = true;
+                step += 1;
+                
+                float delta = repeatDelay-currentTime;
+                deltaTime -= delta;
+                currentTime = 0;
+                
+                if (isReverse(step)) forceEndValues(); else forceStartValues();
+                callCallback(TweenCallback::START);
+                updateOverride(step, step-1, isIterationStep, delta);
+                
+            }
+            else if (isIterationStep && currentTime+deltaTime < 0)
+            {
+                isIterationStep = false;
+                step -= 1;
+                
+                float delta = 0-currentTime;
+                deltaTime -= delta;
+                currentTime = 0;
+                
+                updateOverride(step, step+1, isIterationStep, delta);
+                callCallback(TweenCallback::BACK_END);
+                
+                if (step < 0 && repeatCnt >= 0) callCallback(TweenCallback::BACK_COMPLETE);
+                else currentTime = repeatDelay;
+                
+            }
+            else if (isIterationStep && currentTime+deltaTime > duration)
+            {
+                isIterationStep = false;
+                step += 1;
+                
+                float delta = duration-currentTime;
+                deltaTime -= delta;
+                currentTime = duration;
+                
+                updateOverride(step, step-1, isIterationStep, delta);
+                callCallback(TweenCallback::END);
+
+                if (step > repeatCnt*2 && repeatCnt >= 0) callCallback(TweenCallback::COMPLETE);
+                currentTime = 0;
+                
+            }
+            else if (isIterationStep)
+            {
+                float delta = deltaTime;
+                deltaTime -= delta;
+                currentTime += delta;
+                updateOverride(step, step, isIterationStep, delta);
+                break;
+                
+            }
+            else
+            {
+                float delta = deltaTime;
+                deltaTime -= delta;
+                currentTime += delta;
+                break;
+            }
+        }
+    }
+    
+    void BaseTween::testCompletion()
+    {
+        isFinishedFlag = repeatCnt >= 0 && (step > repeatCnt*2 || step < 0);
+    }
+
+
+}

external/tween-engine/src/Tween.cpp

@@ -0,0 +1,796 @@
+//
+//  Tween.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * Core class of the Tween Engine. A Tween is basically an interpolation
+ * between two values of an object attribute. However, the main interest of a
+ * Tween is that you can apply an easing formula on this interpolation, in
+ * order to smooth the transitions or to achieve cool effects like springs or
+ * bounces.
+ * <p/>
+ *
+ * The Universal Tween Engine is called "universal" because it is able to apply
+ * interpolations on every attribute from every possible object. Therefore,
+ * every object in your application can be animated with cool effects: it does
+ * not matter if your application is a game, a desktop interface or even a
+ * console program! If it makes sense to animate something, then it can be
+ * animated through this engine.
+ * <p/>
+ *
+ * This class contains many static factory methods to create and instantiate
+ * new interpolations easily. The common way to create a Tween is by using one
+ * of these factories:
+ * <p/>
+ *
+ * - Tween.to(...)<br/>
+ * - Tween.from(...)<br/>
+ * - Tween.set(...)<br/>
+ * - Tween.call(...)
+ * <p/>
+ *
+ * <h2>Example - firing a Tween</h2>
+ *
+ * The following example will move the target horizontal position from its
+ * current value to x=200 and y=300, during 500ms, but only after a delay of
+ * 1000ms. The animation will also be repeated 2 times (the starting position
+ * is registered at the end of the delay, so the animation will automatically
+ * restart from this registered position).
+ * <p/>
+ *
+ * <pre> {@code
+ * Tween.to(myObject, POSITION_XY, 0.5f)
+ *      .target(200, 300)
+ *      .ease(Quad.INOUT)
+ *      .delay(1.0f)
+ *      .repeat(2, 0.2f)
+ *      .start(myManager);
+ * }</pre>
+ *
+ * Tween life-cycles can be automatically managed for you, thanks to the
+ * {@link TweenManager} class. If you choose to manage your tween when you start
+ * it, then you don't need to care about it anymore. <b>Tweens are
+ * <i>fire-and-forget</i>: don't think about them anymore once you started
+ * them (if they are managed of course).</b>
+ * <p/>
+ *
+ * You need to periodicaly update the tween engine, in order to compute the new
+ * values. If your tweens are managed, only update the manager; else you need
+ * to call {@link #update()} on your tweens periodically.
+ * <p/>
+ *
+ * <h2>Example - setting up the engine</h2>
+ *
+ * The engine cannot directly change your objects attributes, since it doesn't
+ * know them. Therefore, you need to tell him how to get and set the different
+ * attributes of your objects: <b>you need to implement the {@link
+ * TweenAccessor} interface for each object class you will animate</b>. Once
+ * done, don't forget to register these implementations, using the static method
+ * {@link registerAccessor()}, when you start your application.
+ *
+ * @see TweenAccessor
+ * @see TweenManager
+ * @see TweenEquation
+ * @see Timeline
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+//#define NDEBUG
+
+#include <TweenEngine/Tween.h>
+#include <TweenEngine/TweenPool.h>
+
+namespace TweenEngine
+{
+    int Tween::combinedAttrsLimit = 3;
+    int Tween::waypointsLimit = 0;
+    
+	/**
+	 * Changes the limit for combined attributes. Defaults to 3 to reduce
+	 * memory footprint.
+	 */
+	void Tween::setCombinedAttributesLimit(int limit) { Tween::combinedAttrsLimit = limit; }
+    
+	/**
+	 * Changes the limit of allowed waypoints for each tween. Defaults to 0 to
+	 * reduce memory footprint.
+	 */
+	void Tween::setWaypointsLimit(int limit) { Tween::waypointsLimit = limit; }
+    
+	/**
+	 * Gets the version number of the library.
+	 */
+	const char *Tween::getVersion() { return "6.3.3"; }
+   
+	/**
+	 * Used for debug purpose. Gets the current number of objects that are
+	 * waiting in the Tween pool.
+	 */
+	int Tween::getPoolSize() { return pool.size(); }
+    
+	/**
+	 * Increases the minimum capacity of the pool. Capacity defaults to 20.
+	 */
+	void Tween::ensurePoolCapacity(int minCapacity) { pool.ensureCapacity(minCapacity); }
+
+    TweenPool &Tween::pool = *(new TweenPool());
+
+	// -------------------------------------------------------------------------
+	// Static -- factories
+	// -------------------------------------------------------------------------
+    
+	/**
+	 * Factory creating a new standard interpolation. This is the most common
+	 * type of interpolation. The starting values are retrieved automatically
+	 * after the delay (if any).
+	 * <br/><br/>
+	 *
+	 * <b>You need to set the target values of the interpolation by using one
+	 * of the target() methods</b>. The interpolation will run from the
+	 * starting values to these target values.
+	 * <br/><br/>
+	 *
+	 * The common use of Tweens is "fire-and-forget": you do not need to care
+	 * for tweens once you added them to a TweenManager, they will be updated
+	 * automatically, and cleaned once finished. Common call:
+	 * <br/><br/>
+	 *
+	 * <pre> {@code
+	 * Tween.to(myObject, POSITION, 1.0f)
+	 *      .target(50, 70)
+	 *      .ease(Quad.INOUT)
+	 *      .start(myManager);
+	 * }</pre>
+	 *
+	 * Several options such as delay, repetitions and callbacks can be added to
+	 * the tween.
+	 *
+	 * @param target The target object of the interpolation.
+	 * @param tweenType The desired type of interpolation.
+	 * @param duration The duration of the interpolation, in milliseconds.
+	 * @return The generated Tween.
+	 */
+	Tween &Tween::to(Tweenable& target, int tweenType, float duration)
+    {
+		Tween &tween = *(pool.get());
+		tween.setup(&target, tweenType, duration);
+        tween.ease(TweenEquations::easeInOutQuad);
+		tween.path(TweenPaths::catmullRom);
+		return tween;
+	}
+
+    /**
+	 * Factory creating a new reversed interpolation. The ending values are
+	 * retrieved automatically after the delay (if any).
+	 * <br/><br/>
+	 *
+	 * <b>You need to set the starting values of the interpolation by using one
+	 * of the target() methods</b>. The interpolation will run from the
+	 * starting values to these target values.
+	 * <br/><br/>
+	 *
+	 * The common use of Tweens is "fire-and-forget": you do not need to care
+	 * for tweens once you added them to a TweenManager, they will be updated
+	 * automatically, and cleaned once finished. Common call:
+	 * <br/><br/>
+	 *
+	 * <pre> {@code
+	 * Tween.from(myObject, POSITION, 1.0f)
+	 *      .target(0, 0)
+	 *      .ease(Quad.INOUT)
+	 *      .start(myManager);
+	 * }</pre>
+	 *
+	 * Several options such as delay, repetitions and callbacks can be added to
+	 * the tween.
+	 *
+	 * @param target The target object of the interpolation.
+	 * @param tweenType The desired type of interpolation.
+	 * @param duration The duration of the interpolation, in milliseconds.
+	 * @return The generated Tween.
+	 */
+	Tween &Tween::from(Tweenable& target, int tweenType, float duration)
+    {
+		Tween &tween = *(pool.get());
+		tween.setup(&target, tweenType, duration);
+        tween.ease(TweenEquations::easeInOutQuad);
+		tween.path(TweenPaths::catmullRom);
+		tween.isFrom = true;
+		return tween;
+	}
+
+    /**
+	 * Factory creating a new instantaneous interpolation (thus this is not
+	 * really an interpolation).
+	 * <br/><br/>
+	 *
+	 * <b>You need to set the target values of the interpolation by using one
+	 * of the target() methods</b>. The interpolation will set the target
+	 * attribute to these values after the delay (if any).
+	 * <br/><br/>
+	 *
+	 * The common use of Tweens is "fire-and-forget": you do not need to care
+	 * for tweens once you added them to a TweenManager, they will be updated
+	 * automatically, and cleaned once finished. Common call:
+	 * <br/><br/>
+	 *
+	 * <pre> {@code
+	 * Tween.set(myObject, POSITION)
+	 *      .target(50, 70)
+	 *      .delay(1.0f)
+	 *      .start(myManager);
+	 * }</pre>
+	 *
+	 * Several options such as delay, repetitions and callbacks can be added to
+	 * the tween.
+	 *
+	 * @param target The target object of the interpolation.
+	 * @param tweenType The desired type of interpolation.
+	 * @return The generated Tween.
+	 */
+	Tween &Tween::set(Tweenable& target, int tweenType)
+    {
+		Tween &tween = *(pool.get());
+		tween.setup(&target, tweenType, 0);
+        tween.ease(TweenEquations::easeInOutQuad);
+		return tween;
+	}
+
+    /**
+	 * Factory creating a new timer. The given callback will be triggered on
+	 * each iteration start, after the delay.
+	 * <br/><br/>
+	 *
+	 * The common use of Tweens is "fire-and-forget": you do not need to care
+	 * for tweens once you added them to a TweenManager, they will be updated
+	 * automatically, and cleaned once finished. Common call:
+	 * <br/><br/>
+	 *
+	 * <pre> {@code
+	 * Tween.call(myCallback)
+	 *      .delay(1.0f)
+	 *      .repeat(10, 1000)
+	 *      .start(myManager);
+	 * }</pre>
+	 *
+	 * @param callback The callback that will be triggered on each iteration
+	 * start.
+	 * @return The generated Tween.
+	 * @see TweenCallback
+	 */
+	Tween &Tween::call(TweenCallback &callback)
+    {
+		Tween &tween = *(pool.get());
+		tween.setup(nullptr, -1, 0);
+		tween.setCallback(&callback);
+		tween.setCallbackTriggers(TweenCallback::START);
+		return tween;
+	}
+    
+	/**
+	 * Convenience method to create an empty tween. Such object is only useful
+	 * when placed inside animation sequences (see {@link Timeline}), in which
+	 * it may act as a beacon, so you can set a callback on it in order to
+	 * trigger some action at the right moment.
+	 *
+	 * @return The generated Tween.
+	 * @see Timeline
+	 */
+	Tween &Tween::mark()
+    {
+		Tween &tween = *(pool.get());
+		tween.setup(nullptr, -1, 0);
+		return tween;
+	}
+    
+    // -------------------------------------------------------------------------
+	// Setup
+	// -------------------------------------------------------------------------
+
+    Tween::Tween()
+    {
+        startValues = new float[combinedAttrsLimit];
+        targetValues = new float[combinedAttrsLimit];
+        waypoints = new float[waypointsLimit*combinedAttrsLimit];
+        accessorBuffer = new float[combinedAttrsLimit];
+        accessorBufferSize = combinedAttrsLimit;
+        pathBuffer = new float[(2+waypointsLimit)*combinedAttrsLimit];
+        pathBufferSize = (2+waypointsLimit)*combinedAttrsLimit;
+        targetObj = nullptr;
+    }
+    
+    Tween::~Tween()
+    {
+        delete startValues;
+        delete targetValues;
+        delete waypoints;
+        delete accessorBuffer;
+        delete pathBuffer;
+        // if (accessor != nullptr) Block_release(accessor);
+    }
+
+    void Tween::reset()
+    {
+        BaseTween::reset();
+        
+        equation = nullptr;
+        pathAlgorithm = nullptr;
+        isFrom = isRelative = false;
+		combinedAttrsCnt = waypointsCnt = 0;
+        
+		if (accessorBufferSize != combinedAttrsLimit) {
+			accessorBuffer = new float[combinedAttrsLimit];
+		}
+        
+		if (pathBufferSize != (2+waypointsLimit)*combinedAttrsLimit) {
+			pathBuffer = new float[(2+waypointsLimit)*combinedAttrsLimit];
+		}
+        
+        // if (accessor != nullptr)
+        // {
+            // Block_release(accessor);
+            targetObj = nullptr;
+        // }
+            type = -1;
+    }
+    
+    void Tween::setup(Tweenable *target, int tweenType, float duration)
+    {
+        // assert(duration >= 0);
+        this->targetObj = target;
+        this->type = tweenType;
+		this->duration = duration;
+    }
+   
+    // -------------------------------------------------------------------------
+	// Public API
+	// -------------------------------------------------------------------------
+
+    /**
+	 * Sets the easing equation of the tween. Existing equations are located in
+	 * <i>aurelienribon.tweenengine.equations</i> package, but you can of course
+	 * implement your owns, see {@link TweenEquation}. You can also use the
+	 * {@link TweenEquations} static instances to quickly access all the
+	 * equations. Default equation is Quad.INOUT.
+	 * <p/>
+	 *
+	 * <b>Proposed equations are:</b><br/>
+	 * - Linear.INOUT,<br/>
+	 * - Quad.IN | OUT | INOUT,<br/>
+	 * - Cubic.IN | OUT | INOUT,<br/>
+	 * - Quart.IN | OUT | INOUT,<br/>
+	 * - Quint.IN | OUT | INOUT,<br/>
+	 * - Circ.IN | OUT | INOUT,<br/>
+	 * - Sine.IN | OUT | INOUT,<br/>
+	 * - Expo.IN | OUT | INOUT,<br/>
+	 * - Back.IN | OUT | INOUT,<br/>
+	 * - Bounce.IN | OUT | INOUT,<br/>
+	 * - Elastic.IN | OUT | INOUT
+	 *
+	 * @return The current tween, for chaining instructions.
+	 * @see TweenEquation
+	 * @see TweenEquations
+	 */
+    Tween &Tween::ease(TweenEquation &easeEquation)
+    {
+		this->equation = &easeEquation;
+		return *this;
+    }
+    
+    /**
+	 * Sets the target value of the interpolation. The interpolation will run
+	 * from the <b>value at start time (after the delay, if any)</b> to this
+	 * target value.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start value: value at start time, after delay<br/>
+	 * - end value: param
+	 *
+	 * @param targetValue The target value of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::target(float targetValue)
+    {
+		targetValues[0] = targetValue;
+		return *this;
+	}
+    
+	/**
+	 * Sets the target values of the interpolation. The interpolation will run
+	 * from the <b>values at start time (after the delay, if any)</b> to these
+	 * target values.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start values: values at start time, after delay<br/>
+	 * - end values: params
+	 *
+	 * @param targetValue1 The 1st target value of the interpolation.
+	 * @param targetValue2 The 2nd target value of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::target(float targetValue1, float targetValue2)
+    {
+		targetValues[0] = targetValue1;
+		targetValues[1] = targetValue2;
+		return *this;
+	}
+    
+	/**
+	 * Sets the target values of the interpolation. The interpolation will run
+	 * from the <b>values at start time (after the delay, if any)</b> to these
+	 * target values.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start values: values at start time, after delay<br/>
+	 * - end values: params
+	 *
+	 * @param targetValue1 The 1st target value of the interpolation.
+	 * @param targetValue2 The 2nd target value of the interpolation.
+	 * @param targetValue3 The 3rd target value of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::target(float targetValue1, float targetValue2, float targetValue3)
+    {
+		targetValues[0] = targetValue1;
+		targetValues[1] = targetValue2;
+		targetValues[2] = targetValue3;
+		return *this;
+	}
+
+    Tween &Tween::target(float *targetValues, int len)
+    {
+        if (len <= combinedAttrsLimit)
+        {
+            for (int i=0; i<len; i++)
+                this->targetValues[i] = targetValues[i];
+        }
+		return *this;
+    }
+
+    /**
+	 * Sets the target value of the interpolation, relatively to the <b>value
+	 * at start time (after the delay, if any)</b>.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start value: value at start time, after delay<br/>
+	 * - end value: param + value at start time, after delay
+	 *
+	 * @param targetValue The relative target value of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::targetRelative(float targetValue)
+    {
+		isRelative = true;
+		targetValues[0] = isInitialized() ? targetValue + startValues[0] : targetValue;
+		return *this;
+	}
+    
+	/**
+	 * Sets the target values of the interpolation, relatively to the <b>values
+	 * at start time (after the delay, if any)</b>.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start values: values at start time, after delay<br/>
+	 * - end values: params + values at start time, after delay
+	 *
+	 * @param targetValue1 The 1st relative target value of the interpolation.
+	 * @param targetValue2 The 2nd relative target value of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::targetRelative(float targetValue1, float targetValue2)
+    {
+		isRelative = true;
+		targetValues[0] = isInitialized() ? targetValue1 + startValues[0] : targetValue1;
+		targetValues[1] = isInitialized() ? targetValue2 + startValues[1] : targetValue2;
+		return *this;
+	}
+    
+	/**
+	 * Sets the target values of the interpolation, relatively to the <b>values
+	 * at start time (after the delay, if any)</b>.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start values: values at start time, after delay<br/>
+	 * - end values: params + values at start time, after delay
+	 *
+	 * @param targetValue1 The 1st relative target value of the interpolation.
+	 * @param targetValue2 The 2nd relative target value of the interpolation.
+	 * @param targetValue3 The 3rd relative target value of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::targetRelative(float targetValue1, float targetValue2, float targetValue3)
+    {
+		isRelative = true;
+		targetValues[0] = isInitialized() ? targetValue1 + startValues[0] : targetValue1;
+		targetValues[1] = isInitialized() ? targetValue2 + startValues[1] : targetValue2;
+		targetValues[2] = isInitialized() ? targetValue3 + startValues[2] : targetValue3;
+		return *this;
+	}
+    
+	/**
+	 * Sets the target values of the interpolation, relatively to the <b>values
+	 * at start time (after the delay, if any)</b>.
+	 * <p/>
+	 *
+	 * To sum-up:<br/>
+	 * - start values: values at start time, after delay<br/>
+	 * - end values: params + values at start time, after delay
+	 *
+	 * @param targetValues The relative target values of the interpolation.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::targetRelative(float *targetValues, int len)
+    {
+        if (len <= combinedAttrsLimit)
+        {
+            for (int i=0; i<len; i++)
+                this->targetValues[i] = isInitialized() ? targetValues[i] + startValues[i] : targetValues[i];
+        }
+        
+		isRelative = true;
+		return *this;
+	}
+
+	/**
+	 * Adds a waypoint to the path. The default path runs from the start values
+	 * to the end values linearly. If you add waypoints, the default path will
+	 * use a smooth catmull-rom spline to navigate between the waypoints, but
+	 * you can change this behavior by using the {@link #path(TweenPath)}
+	 * method.
+	 * <p/>
+	 * Note that if you want waypoints relative to the start values, use one of
+	 * the .targetRelative() methods to define your target.
+	 *
+	 * @param targetValue The target of this waypoint.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::waypoint(float targetValue)
+	{
+		if (waypointsCnt < waypointsLimit)
+		{
+			waypoints[waypointsCnt] = targetValue;
+			waypointsCnt += 1;
+		}
+
+		return *this;
+	}
+
+    /**
+	 * Adds a waypoint to the path. The default path runs from the start values
+	 * to the end values linearly. If you add waypoints, the default path will
+	 * use a smooth catmull-rom spline to navigate between the waypoints, but
+	 * you can change this behavior by using the {@link #path(TweenPath)}
+	 * method.
+	 * <p/>
+	 * Note that if you want waypoints relative to the start values, use one of
+	 * the .targetRelative() methods to define your target.
+	 *
+	 * @param targetValue1 The 1st target of this waypoint.
+	 * @param targetValue2 The 2nd target of this waypoint.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::waypoint(float targetValue1, float targetValue2)
+    {
+		if (waypointsCnt < waypointsLimit)
+        {
+            waypoints[waypointsCnt*2] = targetValue1;
+            waypoints[waypointsCnt*2+1] = targetValue2;
+            waypointsCnt += 1;
+        }
+        
+		return *this;
+	}
+    
+	/**
+	 * Adds a waypoint to the path. The default path runs from the start values
+	 * to the end values linearly. If you add waypoints, the default path will
+	 * use a smooth catmull-rom spline to navigate between the waypoints, but
+	 * you can change this behavior by using the {@link #path(TweenPath)}
+	 * method.
+	 * <p/>
+	 * Note that if you want waypoints relative to the start values, use one of
+	 * the .targetRelative() methods to define your target.
+	 *
+	 * @param targetValue1 The 1st target of this waypoint.
+	 * @param targetValue2 The 2nd target of this waypoint.
+	 * @param targetValue3 The 3rd target of this waypoint.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::waypoint(float targetValue1, float targetValue2, float targetValue3)
+    {
+		if (waypointsCnt < waypointsLimit)
+        {
+            waypoints[waypointsCnt*3] = targetValue1;
+            waypoints[waypointsCnt*3+1] = targetValue2;
+            waypoints[waypointsCnt*3+2] = targetValue3;
+            waypointsCnt += 1;
+        }
+		return *this;
+	}
+    
+	/**
+	 * Adds a waypoint to the path. The default path runs from the start values
+	 * to the end values linearly. If you add waypoints, the default path will
+	 * use a smooth catmull-rom spline to navigate between the waypoints, but
+	 * you can change this behavior by using the {@link #path(TweenPath)}
+	 * method.
+	 * <p/>
+	 * Note that if you want waypoints relative to the start values, use one of
+	 * the .targetRelative() methods to define your target.
+	 *
+	 * @param targetValues The targets of this waypoint.
+	 * @return The current tween, for chaining instructions.
+	 */
+	Tween &Tween::waypoint(float *targetValues, int len)
+    {
+		if (waypointsCnt < waypointsLimit)
+        {
+            for (int i=0; i<len; i++)
+                this->waypoints[waypointsCnt*len+i] = targetValues[i];
+            waypointsCnt += 1;
+        }
+		return *this;
+	}
+    
+	/**
+	 * Sets the algorithm that will be used to navigate through the waypoints,
+	 * from the start values to the end values. Default is a catmull-rom spline,
+	 * but you can find other paths in the {@link TweenPaths} class.
+	 *
+	 * @param path A TweenPath implementation.
+	 * @return The current tween, for chaining instructions.
+	 * @see TweenPath
+	 * @see TweenPaths
+	 */
+	Tween &Tween::path(TweenPath &path)
+    {
+		this->pathAlgorithm = &path;
+		return *this;
+	}
+
+    // -------------------------------------------------------------------------
+	// Getters
+	// -------------------------------------------------------------------------
+
+	/**
+	 * Gets the easing equation.
+	 */
+	TweenEquation *Tween::getEasing() { return equation; }
+    
+	/**
+	 * Gets the target values. The returned buffer is as long as the maximum
+	 * allowed combined values. Therefore, you're surely not interested in all
+	 * its content. Use {@link #getCombinedTweenCount()} to get the number of
+	 * interesting slots.
+	 */
+	float *Tween::getTargetValues() { return targetValues; }
+    
+	/**
+	 * Gets the number of combined animations.
+	 */
+    int Tween::getCombinedAttributesCount() { return combinedAttrsCnt; }
+
+    // -------------------------------------------------------------------------
+	// Base Class
+	// -------------------------------------------------------------------------
+
+    Tween &Tween::build()
+    {
+        if (targetObj != nullptr) {
+            combinedAttrsCnt = targetObj->getValues(type, accessorBuffer);
+        }
+        // assert(combinedAttrsCnt <= combinedAttrsLimit);
+		return *this;
+	}
+    
+	void Tween::free() { pool.free(this); }
+    
+	void Tween::initializeOverride()
+    {
+        targetObj->getValues(type, startValues);
+        
+		for (int i=0; i<combinedAttrsCnt; i++) {
+			targetValues[i] += isRelative ? startValues[i] : 0;
+            
+			for (int ii=0; ii<waypointsCnt; ii++) {
+				waypoints[ii*combinedAttrsCnt+i] += isRelative ? startValues[i] : 0;
+			}
+            
+			if (isFrom) {
+				float tmp = startValues[i];
+				startValues[i] = targetValues[i];
+				targetValues[i] = tmp;
+			}
+		}
+	}
+    
+	void Tween::updateOverride(int step, int lastStep, bool isIterationStep, float delta)
+    {
+		if (equation == nullptr) return;
+        
+		// Case iteration end has been reached
+        
+		if (!isIterationStep && step > lastStep)
+        {
+            targetObj->setValues(type, isReverse(lastStep) ? startValues : targetValues);
+			return;
+		}
+        
+		if (!isIterationStep && step < lastStep)
+        {
+            targetObj->setValues(type, isReverse(lastStep) ? targetValues : startValues);
+			return;
+		}
+        
+		// Validation
+        
+		// assert(isIterationStep);
+		// assert(getCurrentTime() >= 0);
+		// assert(getCurrentTime() <= duration);
+        
+		// Case duration equals zero
+        
+		if (duration < 0.00000000001f && delta > -0.00000000001f)
+        {
+            targetObj->setValues(type, isReverse(step) ? targetValues : startValues);
+			return;
+		}
+        
+		if (duration < 0.00000000001f && delta < 0.00000000001f) {
+			targetObj->setValues(type, isReverse(step) ? startValues : targetValues);
+			return;
+		}
+        
+		// Normal behavior
+        
+		float time = isReverse(step) ? duration - getCurrentTime() : getCurrentTime();
+		float t = equation->compute(time/duration);
+        
+		if (waypointsCnt == 0 || pathAlgorithm == nullptr)
+        {
+			for (int i=0; i<combinedAttrsCnt; i++)
+            {
+				accessorBuffer[i] = startValues[i] + t * (targetValues[i] - startValues[i]);
+			}
+            
+		}
+        else
+        {
+			for (int i=0; i<combinedAttrsCnt; i++)
+            {
+				pathBuffer[0] = startValues[i];
+				pathBuffer[1+waypointsCnt] = targetValues[i];
+				for (int ii=0; ii<waypointsCnt; ii++)
+                {
+					pathBuffer[ii+1] = waypoints[ii*combinedAttrsCnt+i];
+				}
+                
+				accessorBuffer[i] = pathAlgorithm->compute(t, pathBuffer, waypointsCnt+2);
+			}
+		}
+        
+		targetObj->setValues(type, accessorBuffer);
+	}
+
+	void Tween::forceStartValues(){
+		targetObj->setValues(type, startValues);
+	}
+    
+	void Tween::forceEndValues(){
+		targetObj->setValues(type, targetValues);
+	}
+    
+    int Tween::getTweenCount() { return 1; }
+
+    int Tween::getTimelineCount() { return 0; }
+
+}

external/tween-engine/src/TweenEquations.cpp

@@ -0,0 +1,53 @@
+//
+//  Equations.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/TweenEquations.h>
+
+namespace TweenEngine
+{
+    TweenEquation &TweenEquations::easeInQuad = *(new QuadIn());
+    TweenEquation &TweenEquations::easeOutQuad = *(new QuadOut());
+    TweenEquation &TweenEquations::easeInOutQuad = *(new QuadInOut());
+    
+    TweenEquation &TweenEquations::easeInOutLinear = *(new LinearInOut());
+
+    TweenEquation &TweenEquations::easeInBack = *(new BackIn());
+    TweenEquation &TweenEquations::easeOutBack = *(new BackOut());
+    TweenEquation &TweenEquations::easeInOutBack = *(new BackInOut());
+    
+    TweenEquation &TweenEquations::easeInBounce = *(new BounceIn());
+    TweenEquation &TweenEquations::easeOutBounce = *(new BounceOut());
+    TweenEquation &TweenEquations::easeInOutBounce = *(new BounceInOut());
+
+    TweenEquation &TweenEquations::easeInCirc = *(new CircIn());
+    TweenEquation &TweenEquations::easeOutCirc = *(new CircOut());
+    TweenEquation &TweenEquations::easeInOutCirc = *(new CircInOut());
+
+    TweenEquation &TweenEquations::easeInCubic = *(new CubicIn());
+    TweenEquation &TweenEquations::easeOutCubic = *(new CubicOut());
+    TweenEquation &TweenEquations::easeInOutCubic = *(new CubicInOut());
+    
+    TweenEquation &TweenEquations::easeInElastic = *(new ElasticIn());
+    TweenEquation &TweenEquations::easeOutElastic = *(new ElasticOut());
+    TweenEquation &TweenEquations::easeInOutElastic = *(new ElasticInOut());
+    
+    TweenEquation &TweenEquations::easeInExpo = *(new ExpoIn());
+    TweenEquation &TweenEquations::easeOutExpo = *(new ExpoOut());
+    TweenEquation &TweenEquations::easeInOutExpo = *(new ExpoInOut());
+    
+    TweenEquation &TweenEquations::easeInQuart = *(new QuartIn());
+    TweenEquation &TweenEquations::easeOutQuart = *(new QuartOut());
+    TweenEquation &TweenEquations::easeInOutQuart = *(new QuartInOut());
+
+    TweenEquation &TweenEquations::easeInQuint = *(new QuintIn());
+    TweenEquation &TweenEquations::easeOutQuint = *(new QuintOut());
+    TweenEquation &TweenEquations::easeInOutQuint = *(new QuintInOut());
+    
+    TweenEquation &TweenEquations::easeInSine = *(new SineIn());
+    TweenEquation &TweenEquations::easeOutSine = *(new SineOut());
+    TweenEquation &TweenEquations::easeInOutSine = *(new SineInOut());
+}

external/tween-engine/src/TweenManager.cpp

@@ -0,0 +1,186 @@
+//
+//  TweenManager.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/TweenManager.h>
+#include <TweenEngine/BaseTween.h>
+
+namespace TweenEngine
+{
+    // -------------------------------------------------------------------------
+    // Static API
+    // -------------------------------------------------------------------------
+    
+    /**
+     * Disables or enables the "auto remove" mode of any tween manager for a
+     * particular tween or timeline. This mode is activated by default. The
+     * interest of desactivating it is to prevent some tweens or timelines from
+     * being automatically removed from a manager once they are finished.
+     * Therefore, if you update a manager backwards, the tweens or timelines
+     * will be played again, even if they were finished.
+     */
+    void TweenManager::setAutoRemove(BaseTween &object, bool value)
+    {
+        object.isAutoRemoveEnabled = value;
+    }
+    
+    /**
+     * Disables or enables the "auto start" mode of any tween manager for a
+     * particular tween or timeline. This mode is activated by default. If it
+     * is not enabled, add a tween or timeline to any manager won't start it
+     * automatically, and you'll need to call .start() manually on your object.
+     */
+    void TweenManager::setAutoStart(BaseTween &object, bool value)
+    {
+        object.isAutoStartEnabled = value;
+    }
+    
+    int getTweensCount(std::vector<BaseTween *> objs)
+    {
+		int cnt = 0;
+		for (int i=0, n=objs.size(); i<n; i++)
+        {
+            cnt += objs[i]->getTweenCount();
+		}
+		return cnt;
+	}
+    
+	int getTimelinesCount(std::vector<BaseTween *> objs)
+    {
+		int cnt = 0;
+		for (int i=0, n=objs.size(); i<n; i++)
+        {
+            cnt += objs[i]->getTimelineCount();
+		}
+		return cnt;
+	}
+    
+    bool isTweenFinished(BaseTween *obj)
+    {
+        if (obj->isFinished() && obj->isAutoRemoveEnabled)
+        {
+            obj->free();
+            return true;
+        }
+        return false;
+    }
+
+    // -------------------------------------------------------------------------
+	// API
+	// -------------------------------------------------------------------------
+
+    TweenManager::TweenManager() : objects()
+    {
+        objects.reserve(20);
+    }
+
+    /**
+	 * Adds a tween or timeline to the manager and starts or restarts it.
+	 *
+	 * @return The manager, for instruction chaining.
+	 */
+	TweenManager &TweenManager::add(BaseTween &object)
+    {
+        bool isPresent = (std::find(objects.begin(), objects.end(), &object) != objects.end());
+		if (!isPresent) objects.push_back(&object);
+		if (object.isAutoStartEnabled) object.start();
+		return *this;
+	}
+    
+	/**
+	 * Kills every managed tweens and timelines.
+	 */
+	void TweenManager::killAll()
+    {
+		for (int i=0, n=objects.size(); i<n; i++)
+        {
+			BaseTween *obj = objects[i];
+			obj->kill();
+		}
+	}
+    
+	/**
+	 * Increases the minimum capacity of the manager. Defaults to 20.
+	 */
+	void TweenManager::ensureCapacity(int minCapacity) { objects.reserve(minCapacity); }
+    
+	/**
+	 * Pauses the manager. Further update calls won't have any effect.
+	 */
+	void TweenManager::pause() { isPaused = true; }
+    
+	/**
+	 * Resumes the manager, if paused.
+	 */
+	void TweenManager::resume() { isPaused = false; }
+    
+	/**
+	 * Updates every tweens with a delta time ang handles the tween life-cycles
+	 * automatically. If a tween is finished, it will be removed from the
+	 * manager. The delta time represents the elapsed time between now and the
+	 * last update call. Each tween or timeline manages its local time, and adds
+	 * this delta to its local time to update itself.
+	 * <p/>
+	 *
+	 * Slow motion, fast motion and backward play can be easily achieved by
+	 * tweaking this delta time. Multiply it by -1 to play the animation
+	 * backward, or by 0.5 to play it twice slower than its normal speed.
+	 */
+   
+	void TweenManager::update(float delta)
+    {
+        // Remove tweens that are finished
+        objects.erase(std::remove_if(objects.begin(),objects.end(),isTweenFinished), objects.end());
+        
+		if (!isPaused)
+        {
+			if (delta >= 0)
+            {
+				for (int i=0, n=objects.size(); i<n; i++) objects[i]->update(delta);
+			}
+            else
+            {
+				for (int i=objects.size()-1; i>=0; i--) objects[i]->update(delta);
+			}
+		}
+	}
+    
+	/**
+	 * Gets the number of managed objects. An object may be a tween or a
+	 * timeline. Note that a timeline only counts for 1 object, since it
+	 * manages its children itself.
+	 * <p/>
+	 * To get the count of running tweens, see {@link #getRunningTweensCount()}.
+	 */
+	int TweenManager::size() { return objects.size(); }
+    
+	/**
+	 * Gets the number of running tweens. This number includes the tweens
+	 * located inside timelines (and nested timelines).
+	 * <p/>
+	 * <b>Provided for debug purpose only.</b>
+	 */
+	int TweenManager::getRunningTweensCount() { return getTweensCount(objects); }
+    
+	/**
+	 * Gets the number of running timelines. This number includes the timelines
+	 * nested inside other timelines.
+	 * <p/>
+	 * <b>Provided for debug purpose only.</b>
+	 */
+	int TweenManager::getRunningTimelinesCount() { return getTimelinesCount(objects); }
+    
+	/**
+	 * Gets a list of every managed object.
+	 * <p/>
+	 * <b>Provided for debug purpose only.</b>
+	 */
+    std::vector<BaseTween *> &TweenManager::getObjects()
+    {
+		return objects;
+	}
+
+}

external/tween-engine/src/TweenPaths.cpp

@@ -0,0 +1,17 @@
+//
+//  TweenPaths.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/TweenPaths.h>
+
+#include <TweenEngine/paths/LinearPath.h>
+#include <TweenEngine/paths/CatmullRom.h>
+
+namespace TweenEngine
+{
+    TweenPath &TweenPaths::linear = *(new LinearPath());
+    TweenPath &TweenPaths::catmullRom = *(new CatmullRom());
+}

external/tween-engine/src/TweenPool.cpp

@@ -0,0 +1,39 @@
+//
+//  TweenPool.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/TweenPool.h>
+#include <TweenEngine/Tween.h>
+
+namespace TweenEngine
+{
+    void TweenPoolCallback::onPool(Tween *obj)
+    {
+        obj->reset();
+    }
+    
+    void TweenPoolCallback::onUnPool(Tween *obj)
+    {
+        obj->reset();
+    }
+    
+    TweenPool::TweenPool() : Pool<TweenEngine::Tween>(20, new TweenPoolCallback())
+    {
+    }
+    
+    Tween *TweenPool::create() { return new Tween(); }
+
+    //TweenPoolCallback *Tween::poolCallback = new TweenPoolCallback();
+    //TweenPool *Tween::pool = new TweenPool(20, Tween::poolCallback);
+    
+    /*
+     private static final Pool<Tween> pool = new Pool<Tween>(20, poolCallback) {
+     @Override protected Tween create() {return new Tween();}
+     };
+     */
+    
+  
+}

external/tween-engine/src/equations/Back.cpp

@@ -0,0 +1,34 @@
+//
+//  Back.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/equations/Back.h>
+
+#define S   (1.70158f)
+
+namespace TweenEngine
+{
+    float BackIn::compute(float t) { return t*t*((S+1)*t - S); }
+    const char *BackIn::toString() { return "Back.IN"; }
+    
+    float BackOut::compute(float t) {
+        t -= 1;
+        return (t*t*((S+1)*t + S) + 1);
+    }
+    const char *BackOut::toString() { return "Back.OUT"; }
+    
+    float BackInOut::compute(float t) {
+        float s=S*1.525;
+        t*=2;
+        if (t < 1) {
+            return 0.5f*(t*t*((s+1)*t - s));
+        } else {
+            t -= 2;
+            return 0.5f*(t*t*((s+1)*t + s) + 2);
+        }
+    }
+    const char *BackInOut::toString() { return "Back.INOUT"; }
+}

external/tween-engine/src/equations/Bounce.cpp

@@ -0,0 +1,42 @@
+//
+//  Bounce.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/equations/Bounce.h>
+
+namespace TweenEngine
+{
+    inline float outBounce(float t) {
+        if (t < (1/2.75)) {
+            return 7.5625f*t*t;
+        } else if (t < (2/2.75)) {
+            t = t - (1.5 / 2.75);
+            return (7.5625 * t * t + 0.75);
+        } else if (t < (2.5/2.75)) {
+            t = t - (2.25 / 2.75);
+            return (7.5625 * t * t + 0.9375);
+        } else {
+            t = t - (2.625 / 2.75);
+            return (7.5625 * t * t + 0.984375);
+        }
+    }
+
+    inline float inBounce(float t) {
+        return 1 - outBounce(1-t);
+    }
+   
+    float BounceIn::compute(float t) { return inBounce(t); }
+    const char *BounceIn::toString() { return "Bounce.IN"; }
+    
+    float BounceOut::compute(float t) { return outBounce(t); }
+    const char *BounceOut::toString() { return "Bounce.OUT"; }
+    
+    float BounceInOut::compute(float t) {
+        if (t < 0.5f) return (inBounce(t*2) * 0.5f);
+        else return (outBounce(t*2-1) * 0.5f + 0.5f);
+    }
+    const char *BounceInOut::toString() { return "Bounce.INOUT"; }
+}

external/tween-engine/src/equations/Circ.cpp

@@ -0,0 +1,30 @@
+//
+//  Circ.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <math.h>
+#include <TweenEngine/equations/Circ.h>
+
+namespace TweenEngine
+{
+    float CircIn::compute(float t) { return (float) -sqrt(1 - t*t) - 1; }
+    const char *CircIn::toString() { return "Circ.IN"; }
+    
+    float CircOut::compute(float t) { return (float) sqrt(1 - (t-1)*(t-1)); }
+    const char *CircOut::toString() { return "Circ.OUT"; }
+    
+    float CircInOut::compute(float t) {
+        t *= 2;
+        if (t < 1) {
+            return (-0.5 * (sqrt(1 - t*t) - 1));
+        } else {
+            t -= 2;
+            return (0.5 * (sqrt(1 - t*t) + 1));
+        }
+    }
+    
+    const char *CircInOut::toString() { return "Circ.INOUT"; }
+}

external/tween-engine/src/equations/Cubic.cpp

@@ -0,0 +1,31 @@
+//
+//  Cubic.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/equations/Cubic.h>
+
+namespace TweenEngine
+{
+    float CubicIn::compute(float t) { return t*t*t; }
+    const char *CubicIn::toString() { return "Cubic.IN"; }
+    
+    float CubicOut::compute(float t) {
+        t -= 1;
+        return t*t*t + 1;
+    }
+    const char *CubicOut::toString() { return "Cubic.OUT"; }
+    
+    float CubicInOut::compute(float t) {
+        t *= 2;
+        if (t < 1) {
+            return 0.5f * t*t*t;
+        } else {
+            t -= 2;
+            return 0.5f * (t*t*t + 2);
+        }
+    }
+    const char *CubicInOut::toString() { return "Cubic.INOUT"; }
+}

external/tween-engine/src/equations/Elastic.cpp

@@ -0,0 +1,80 @@
+//
+//  Elastic.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <math.h>
+#include <TweenEngine/equations/Elastic.h>
+
+#define M_PI        3.14159265358979323846
+#define M_TWOPI         (M_PI * 2.0)
+
+namespace TweenEngine
+{
+    float ElasticIn::compute(float t) {
+        float a = amplitude;
+        float p = period;
+        if (t == 0) return 0;
+        if (t == 1) return 1;
+        if (!isPeriodSet) p = 0.3;
+        float s;
+        if (!isAmplitudeSet || a < 1) {
+            a = 1;
+            s = p/4.0;
+        } else {
+            s = p/(M_TWOPI) * (float)asin(1/a);
+        }
+        t -= 1;
+        return -(a*(float)pow(2,10*t) * (float)sin((t-s)*(M_TWOPI)/p ));
+    }
+    const char *ElasticIn::toString() { return "Elastic.IN"; }
+    void ElasticIn::setAmplitude(float a) { this->amplitude = a; this->isAmplitudeSet = true; }
+    void ElasticIn::setPeriod(float p) { this->period = p; this->isPeriodSet = true; }
+    
+    float ElasticOut::compute(float t) {
+        float a = amplitude;
+        float p = period;
+        if (t==0) return 0;
+        if (t==1) return 1;
+        if (!isPeriodSet) p = 0.3f;
+        float s;
+        if (!isAmplitudeSet || a < 1) {
+            a = 1;
+            s = p/4.0;
+        } else {
+            s = p/(M_TWOPI) * (float)asin(1/a);
+        }
+        return a*(float)pow(2,-10*t) * (float)sin((t-s)*(M_TWOPI)/p ) + 1;
+    }
+    const char *ElasticOut::toString() { return "Elastic.OUT"; }
+    void ElasticOut::setAmplitude(float a) { this->amplitude = a; this->isAmplitudeSet = true; }
+    void ElasticOut::setPeriod(float p) { this->period = p; this->isPeriodSet = true; }
+    
+    float ElasticInOut::compute(float t) {
+        float a = amplitude;
+        float p = period;
+        if (t==0) return 0;
+        t *= 2;
+        if (t==2) return 1;
+        if (!isPeriodSet) p = 0.3f*1.5f;
+        float s;
+        if (!isAmplitudeSet || a < 1) {
+            a = 1;
+            s = p/4.0;
+        } else {
+            s = p/(M_TWOPI) * (float)asin(1/a);
+        }
+        if (t < 1) {
+            t -= 1;
+            return -0.5f*(a*(float)pow(2,10*t) * (float)sin((t-s)*(M_TWOPI)/p));
+        } else {
+            t -= 1;
+            return a*(float)pow(2,-10*t) * (float)sin((t-s)*(M_TWOPI)/p)*0.5f + 1;
+        }
+    }
+    const char *ElasticInOut::toString() { return "Elastic.INOUT"; }
+    void ElasticInOut::setAmplitude(float a) { this->amplitude = a; this->isAmplitudeSet = true; }
+    void ElasticInOut::setPeriod(float p) { this->period = p; this->isPeriodSet = true; }
+}

external/tween-engine/src/equations/Expo.cpp

@@ -0,0 +1,35 @@
+//
+//  Expo.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <math.h>
+#include <TweenEngine/equations/Expo.h>
+
+namespace TweenEngine
+{
+    float ExpoIn::compute(float t) {
+        return (t==0) ? 0 : (float)pow(2,10*(t-1));
+    }
+    const char *ExpoIn::toString() { return "Expo.IN"; }
+    
+    float ExpoOut::compute(float t) {
+        return (t==1) ? 1 : -(float)pow(2,-10*t) + 1;
+    }
+    const char *ExpoOut::toString() { return "Expo.OUT"; }
+    
+    float ExpoInOut::compute(float t) {
+        if (t==0) return 0;
+        if (t==1) return 1;
+        t *= 2;
+        if (t < 1) {
+            return 0.5f * (float)pow(2,10*(t-1));
+        } else {
+            t -= 1;
+            return 0.5f * (-(float)pow(2,-10*t) + 2);
+        }
+    }
+    const char *ExpoInOut::toString() { return "Expo.INOUT"; }
+}

external/tween-engine/src/equations/Linear.cpp

@@ -0,0 +1,20 @@
+//
+//  Linear.cpp
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * Easing equation based on Robert Penner's work:
+ * http://robertpenner.com/easing/
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#include <TweenEngine/equations/Linear.h>
+
+namespace TweenEngine
+{
+    float LinearInOut::compute(float t) { return t; }
+    const char *LinearInOut::toString() { return "Linear.INOUT"; }
+
+}

external/tween-engine/src/equations/Quad.cpp

@@ -0,0 +1,31 @@
+//
+//  Quad.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * Easing equation based on Robert Penner's work:
+ * http://robertpenner.com/easing/
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#include <TweenEngine/equations/Quad.h>
+
+namespace TweenEngine
+{
+    float QuadIn::compute(float t) { return t*t; }
+    const char *QuadIn::toString() { return "Quad.IN"; }
+
+    float QuadOut::compute(float t) { return -t*(t-2); }
+    const char *QuadOut::toString() { return "Quad.OUT"; }
+
+    float QuadInOut::compute(float t)
+    {
+        t*=2;
+        if (t < 1) return 0.5f*t*t;
+        return -0.5f * ((t-1)*(t-3) - 1);
+    }
+    const char *QuadInOut::toString() { return "Quad.INOUT"; }
+}

external/tween-engine/src/equations/Quart.cpp

@@ -0,0 +1,31 @@
+//
+//  Quart.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/equations/Quart.h>
+
+namespace TweenEngine
+{
+    float QuartIn::compute(float t) { return t*t*t*t; }
+    const char *QuartIn::toString() { return "Quart.IN"; }
+    
+    float QuartOut::compute(float t) {
+        t-=1;
+        return -(t*t*t*t - 1);
+    }
+    const char *QuartOut::toString() { return "Quart.OUT"; }
+    
+    float QuartInOut::compute(float t) {
+        t *= 2;
+        if (t < 1) {
+            return 0.5f*t*t*t*t;
+        } else {
+            t -= 2;
+            return -0.5f * (t*t*t*t - 2);
+        }
+    }
+    const char *QuartInOut::toString() { return "Quart.INOUT"; }
+}

external/tween-engine/src/equations/Quint.cpp

@@ -0,0 +1,31 @@
+//
+//  Quint.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <TweenEngine/equations/Quint.h>
+
+namespace TweenEngine
+{
+    float QuintIn::compute(float t) { return t*t*t*t*t; }
+    const char *QuintIn::toString() { return "Quint.IN"; }
+    
+    float QuintOut::compute(float t) {
+        t-=1;
+        return -(t*t*t*t*t - 1);
+    }
+    const char *QuintOut::toString() { return "Quint.OUT"; }
+    
+    float QuintInOut::compute(float t) {
+        t *= 2;
+        if (t < 1) {
+            return 0.5f*t*t*t*t*t;
+        } else {
+            t -= 2;
+            return -0.5f * (t*t*t*t*t - 2);
+        }
+    }
+    const char *QuintInOut::toString() { return "Quint.INOUT"; }
+}

external/tween-engine/src/equations/Sine.cpp

@@ -0,0 +1,24 @@
+//
+//  Sine.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <math.h>
+#include <TweenEngine/equations/Sine.h>
+
+#define M_PI		3.14159265358979323846
+#define M_PI_2		1.57079632679489661923
+
+namespace TweenEngine
+{
+    float SineIn::compute(float t) { return (float)-cos(t * (M_PI_2)) + 1; }
+    const char *SineIn::toString() { return "Sine.IN"; }
+    
+    float SineOut::compute(float t) { return (float)sin(t * (M_PI_2)); }
+    const char *SineOut::toString() { return "Sine.OUT"; }
+    
+    float SineInOut::compute(float t) { return -0.5f * ((float)cos(M_PI*t) - 1); }
+    const char *SineInOut::toString() { return "Sine.INOUT"; }
+}

external/tween-engine/src/paths/CatmullRom.cpp

@@ -0,0 +1,47 @@
+//
+//  CatmullRom.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <math.h>
+#include <TweenEngine/paths/CatmullRom.h>
+
+namespace TweenEngine
+{
+    float CatmullRom::compute(float t, float *points, int pointsCnt)
+    {
+		int segment = (int) floor((pointsCnt-1) * t);
+		segment = segment > 0 ? segment : 0;
+		segment = segment < (pointsCnt-2) ? segment : pointsCnt-2;
+        
+		t = t * (pointsCnt-1) - segment;
+        
+		if (segment == 0)
+        {
+			return catmullRomSpline(points[0], points[0], points[1], points[2], t);
+		}
+        
+		if (segment == pointsCnt-2)
+        {
+			return catmullRomSpline(points[pointsCnt-3], points[pointsCnt-2], points[pointsCnt-1], points[pointsCnt-1], t);
+		}
+        
+		return catmullRomSpline(points[segment-1], points[segment], points[segment+1], points[segment+2], t);
+    }
+
+    float CatmullRom::catmullRomSpline(float a, float b, float c, float d, float t)
+    {
+		float t1 = (c - a) * 0.5f;
+		float t2 = (d - b) * 0.5f;
+        
+		float h1 = +2 * t * t * t - 3 * t * t + 1;
+		float h2 = -2 * t * t * t + 3 * t * t;
+		float h3 = t * t * t - 2 * t * t + t;
+		float h4 = t * t * t - t * t;
+        
+		return b * h1 + c * h2 + t1 * h3 + t2 * h4;
+	}
+
+}

external/tween-engine/src/paths/LinearPath.cpp

@@ -0,0 +1,23 @@
+//
+//  Linear.cpp
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#include <math.h>
+#include <TweenEngine/paths/LinearPath.h>
+
+namespace TweenEngine
+{
+    float LinearPath::compute(float t, float *points, int pointsCnt)
+    {
+        int segment = (int) floor((pointsCnt-1) * t);
+		segment = segment > 0 ? segment : 0;
+		segment = segment < (pointsCnt-2) ? segment : pointsCnt-2;
+        
+		t = t * (pointsCnt-1) - segment;
+        
+		return points[segment] + t * (points[segment+1] - points[segment]);
+    }
+}

internal/ini.hpp

@@ -0,0 +1,679 @@
+#ifndef INI_INI_H_
+#define INI_INI_H_
+
+#include <string>
+#include <sstream>
+#include <algorithm>
+#include <utility>
+#include <unordered_map>
+#include <vector>
+#include <memory>
+#include <fstream>
+#include <sys/stat.h>
+#include <cctype>
+
+namespace INI
+{
+	namespace INIStringUtil
+	{
+		const char* const whitespaceDelimiters = " \t\n\r\f\v";
+		inline void trim(std::string& str)
+		{
+			str.erase(str.find_last_not_of(whitespaceDelimiters) + 1);
+			str.erase(0, str.find_first_not_of(whitespaceDelimiters));
+		}
+#ifndef INI_CASE_SENSITIVE
+		inline void toLower(std::string& str)
+		{
+			std::transform(str.begin(), str.end(), str.begin(), [](const char c) {
+				return static_cast<const char>(std::tolower(c));
+			});
+		}
+#endif
+		inline void replace(std::string& str, std::string const& a, std::string const& b)
+		{
+			if (!a.empty())
+			{
+				std::size_t pos = 0;
+				while ((pos = str.find(a, pos)) != std::string::npos)
+				{
+					str.replace(pos, a.size(), b);
+					pos += b.size();
+				}
+			}
+		}
+#ifdef _WIN32
+		const char* const endl = "\r\n";
+#else
+		const char* const endl = "\n";
+#endif
+	};
+
+	template<typename T>
+	class INIMap
+	{
+	private:
+		using T_DataIndexMap = std::unordered_map<std::string, std::size_t>;
+		using T_DataItem = std::pair<std::string, T>;
+		using T_DataContainer = std::vector<T_DataItem>;
+		using T_MultiArgs = typename std::vector<std::pair<std::string, T>>;
+
+		T_DataIndexMap dataIndexMap;
+		T_DataContainer data;
+
+		inline std::size_t setEmpty(std::string& key)
+		{
+			std::size_t index = data.size();
+			dataIndexMap[key] = index;
+			data.emplace_back(key, T());
+			return index;
+		}
+
+	public:
+		using const_iterator = typename T_DataContainer::const_iterator;
+
+		INIMap() { }
+
+		INIMap(INIMap const& other)
+		{
+			std::size_t data_size = other.data.size();
+			for (std::size_t i = 0; i < data_size; ++i)
+			{
+				auto const& key = other.data[i].first;
+				auto const& obj = other.data[i].second;
+				data.emplace_back(key, obj);
+			}
+			dataIndexMap = T_DataIndexMap(other.dataIndexMap);
+		}
+
+		T& operator[](std::string key)
+		{
+			INIStringUtil::trim(key);
+#ifndef INI_CASE_SENSITIVE
+			INIStringUtil::toLower(key);
+#endif
+			auto it = dataIndexMap.find(key);
+			bool hasIt = (it != dataIndexMap.end());
+			std::size_t index = (hasIt) ? it->second : setEmpty(key);
+			return data[index].second;
+		}
+		T get(std::string key) const
+		{
+			INIStringUtil::trim(key);
+#ifndef INI_CASE_SENSITIVE
+			INIStringUtil::toLower(key);
+#endif
+			auto it = dataIndexMap.find(key);
+			if (it == dataIndexMap.end())
+			{
+				return T();
+			}
+			return T(data[it->second].second);
+		}
+		bool has(std::string key) const
+		{
+			INIStringUtil::trim(key);
+#ifndef INI_CASE_SENSITIVE
+			INIStringUtil::toLower(key);
+#endif
+			return (dataIndexMap.count(key) == 1);
+		}
+		void set(std::string key, T obj)
+		{
+			INIStringUtil::trim(key);
+#ifndef INI_CASE_SENSITIVE
+			INIStringUtil::toLower(key);
+#endif
+			auto it = dataIndexMap.find(key);
+			if (it != dataIndexMap.end())
+			{
+				data[it->second].second = obj;
+			}
+			else
+			{
+				dataIndexMap[key] = data.size();
+				data.emplace_back(key, obj);
+			}
+		}
+		void set(T_MultiArgs const& multiArgs)
+		{
+			for (auto const& it : multiArgs)
+			{
+				auto const& key = it.first;
+				auto const& obj = it.second;
+				set(key, obj);
+			}
+		}
+		bool remove(std::string key)
+		{
+			INIStringUtil::trim(key);
+#ifndef INI_CASE_SENSITIVE
+			INIStringUtil::toLower(key);
+#endif
+			auto it = dataIndexMap.find(key);
+			if (it != dataIndexMap.end())
+			{
+				std::size_t index = it->second;
+				data.erase(data.begin() + index);
+				dataIndexMap.erase(it);
+				for (auto& it2 : dataIndexMap)
+				{
+					auto& vi = it2.second;
+					if (vi > index)
+					{
+						vi--;
+					}
+				}
+				return true;
+			}
+			return false;
+		}
+		void clear()
+		{
+			data.clear();
+			dataIndexMap.clear();
+		}
+		std::size_t size() const
+		{
+			return data.size();
+		}
+		const_iterator begin() const { return data.begin(); }
+		const_iterator end() const { return data.end(); }
+	};
+
+	using INIStructure = INIMap<INIMap<std::string>>;
+
+	namespace INIParser
+	{
+		using T_ParseValues = std::pair<std::string, std::string>;
+
+		enum class PDataType : char
+		{
+			PDATA_NONE,
+			PDATA_COMMENT,
+			PDATA_SECTION,
+			PDATA_KEYVALUE,
+			PDATA_UNKNOWN
+		};
+
+		inline PDataType parseLine(std::string line, T_ParseValues& parseData)
+		{
+			parseData.first.clear();
+			parseData.second.clear();
+			INIStringUtil::trim(line);
+			if (line.empty())
+			{
+				return PDataType::PDATA_NONE;
+			}
+			char firstCharacter = line[0];
+			if (firstCharacter == ';')
+			{
+				return PDataType::PDATA_COMMENT;
+			}
+			if (firstCharacter == '[')
+			{
+				auto commentAt = line.find_first_of(';');
+				if (commentAt != std::string::npos)
+				{
+					line = line.substr(0, commentAt);
+				}
+				auto closingBracketAt = line.find_last_of(']');
+				if (closingBracketAt != std::string::npos)
+				{
+					auto section = line.substr(1, closingBracketAt - 1);
+					INIStringUtil::trim(section);
+					parseData.first = section;
+					return PDataType::PDATA_SECTION;
+				}
+			}
+			auto lineNorm = line;
+			INIStringUtil::replace(lineNorm, "\\=", "  ");
+			auto equalsAt = lineNorm.find_first_of('=');
+			if (equalsAt != std::string::npos)
+			{
+				auto key = line.substr(0, equalsAt);
+				INIStringUtil::trim(key);
+				INIStringUtil::replace(key, "\\=", "=");
+				auto value = line.substr(equalsAt + 1);
+				INIStringUtil::trim(value);
+				parseData.first = key;
+				parseData.second = value;
+				return PDataType::PDATA_KEYVALUE;
+			}
+			return PDataType::PDATA_UNKNOWN;
+		}
+	};
+
+	class INIReader
+	{
+	public:
+		using T_LineData = std::vector<std::string>;
+		using T_LineDataPtr = std::shared_ptr<T_LineData>;
+
+	private:
+		std::ifstream fileReadStream;
+		T_LineDataPtr lineData;
+
+		T_LineData readFile()
+		{
+			std::string fileContents;
+			fileReadStream.seekg(0, std::ios::end);
+			fileContents.resize(fileReadStream.tellg());
+			fileReadStream.seekg(0, std::ios::beg);
+			std::size_t fileSize = fileContents.size();
+			fileReadStream.read(&fileContents[0], fileSize);
+			fileReadStream.close();
+			T_LineData output;
+			if (fileSize == 0)
+			{
+				return output;
+			}
+			std::string buffer;
+			buffer.reserve(50);
+			for (std::size_t i = 0; i < fileSize; ++i)
+			{
+				char& c = fileContents[i];
+				if (c == '\n')
+				{
+					output.emplace_back(buffer);
+					buffer.clear();
+					continue;
+				}
+				if (c != '\0' && c != '\r')
+				{
+					buffer += c;
+				}
+			}
+			output.emplace_back(buffer);
+			return output;
+		}
+
+	public:
+		INIReader(std::string const& filename, bool keepLineData = false)
+		{
+			fileReadStream.open(filename, std::ios::in | std::ios::binary);
+			if (keepLineData)
+			{
+				lineData = std::make_shared<T_LineData>();
+			}
+		}
+		~INIReader() { }
+
+		bool operator>>(INIStructure& data)
+		{
+			if (!fileReadStream.is_open())
+			{
+				return false;
+			}
+			T_LineData fileLines = readFile();
+			std::string section;
+			bool inSection = false;
+			INIParser::T_ParseValues parseData;
+			for (auto const& line : fileLines)
+			{
+				auto parseResult = INIParser::parseLine(line, parseData);
+				if (parseResult == INIParser::PDataType::PDATA_SECTION)
+				{
+					inSection = true;
+					data[section = parseData.first];
+				}
+				else if (inSection && parseResult == INIParser::PDataType::PDATA_KEYVALUE)
+				{
+					auto const& key = parseData.first;
+					auto const& value = parseData.second;
+					data[section][key] = value;
+				}
+				if (lineData && parseResult != INIParser::PDataType::PDATA_UNKNOWN)
+				{
+					if (parseResult == INIParser::PDataType::PDATA_KEYVALUE && !inSection)
+					{
+						continue;
+					}
+					lineData->emplace_back(line);
+				}
+			}
+			return true;
+		}
+		T_LineDataPtr getLines()
+		{
+			return lineData;
+		}
+	};
+
+	class INIGenerator
+	{
+	private:
+		std::ofstream fileWriteStream;
+
+	public:
+		bool prettyPrint = false;
+
+		INIGenerator(std::string const& filename)
+		{
+			fileWriteStream.open(filename, std::ios::out | std::ios::binary);
+		}
+		~INIGenerator() { }
+
+		bool operator<<(INIStructure const& data)
+		{
+			if (!fileWriteStream.is_open())
+			{
+				return false;
+			}
+			if (!data.size())
+			{
+				return true;
+			}
+			auto it = data.begin();
+			for (;;)
+			{
+				auto const& section = it->first;
+				auto const& collection = it->second;
+				fileWriteStream
+					<< "["
+					<< section
+					<< "]";
+				if (collection.size())
+				{
+					fileWriteStream << INIStringUtil::endl;
+					auto it2 = collection.begin();
+					for (;;)
+					{
+						auto key = it2->first;
+						INIStringUtil::replace(key, "=", "\\=");
+						auto value = it2->second;
+						INIStringUtil::trim(value);
+						fileWriteStream
+							<< key
+							<< ((prettyPrint) ? " = " : "=")
+							<< value;
+						if (++it2 == collection.end())
+						{
+							break;
+						}
+						fileWriteStream << INIStringUtil::endl;
+					}
+				}
+				if (++it == data.end())
+				{
+					break;
+				}
+				fileWriteStream << INIStringUtil::endl;
+				if (prettyPrint)
+				{
+					fileWriteStream << INIStringUtil::endl;
+				}
+			}
+			return true;
+		}
+	};
+
+	class INIWriter
+	{
+	private:
+		using T_LineData = std::vector<std::string>;
+		using T_LineDataPtr = std::shared_ptr<T_LineData>;
+
+		std::string filename;
+
+		T_LineData getLazyOutput(T_LineDataPtr const& lineData, INIStructure& data, INIStructure& original)
+		{
+			T_LineData output;
+			INIParser::T_ParseValues parseData;
+			std::string sectionCurrent;
+			bool parsingSection = false;
+			bool continueToNextSection = false;
+			bool discardNextEmpty = false;
+			bool writeNewKeys = false;
+			std::size_t lastKeyLine = 0;
+			for (auto line = lineData->begin(); line != lineData->end(); ++line)
+			{
+				if (!writeNewKeys)
+				{
+					auto parseResult = INIParser::parseLine(*line, parseData);
+					if (parseResult == INIParser::PDataType::PDATA_SECTION)
+					{
+						if (parsingSection)
+						{
+							writeNewKeys = true;
+							parsingSection = false;
+							--line;
+							continue;
+						}
+						sectionCurrent = parseData.first;
+						if (data.has(sectionCurrent))
+						{
+							parsingSection = true;
+							continueToNextSection = false;
+							discardNextEmpty = false;
+							output.emplace_back(*line);
+							lastKeyLine = output.size();
+						}
+						else
+						{
+							continueToNextSection = true;
+							discardNextEmpty = true;
+							continue;
+						}
+					}
+					else if (parseResult == INIParser::PDataType::PDATA_KEYVALUE)
+					{
+						if (continueToNextSection)
+						{
+							continue;
+						}
+						if (data.has(sectionCurrent))
+						{
+							auto& collection = data[sectionCurrent];
+							auto const& key = parseData.first;
+							auto const& value = parseData.second;
+							if (collection.has(key))
+							{
+								auto outputValue = collection[key];
+								if (value == outputValue)
+								{
+									output.emplace_back(*line);
+								}
+								else
+								{
+									INIStringUtil::trim(outputValue);
+									auto lineNorm = *line;
+									INIStringUtil::replace(lineNorm, "\\=", "  ");
+									auto equalsAt = lineNorm.find_first_of('=');
+									auto valueAt = lineNorm.find_first_not_of(
+										INIStringUtil::whitespaceDelimiters,
+										equalsAt + 1
+									);
+									std::string outputLine = line->substr(0, valueAt);
+									if (prettyPrint && equalsAt + 1 == valueAt)
+									{
+										outputLine += " ";
+									}
+									outputLine += outputValue;
+									output.emplace_back(outputLine);
+								}
+								lastKeyLine = output.size();
+							}
+						}
+					}
+					else
+					{
+						if (discardNextEmpty && line->empty())
+						{
+							discardNextEmpty = false;
+						}
+						else if (parseResult != INIParser::PDataType::PDATA_UNKNOWN)
+						{
+							output.emplace_back(*line);
+						}
+					}
+				}
+				if (writeNewKeys || std::next(line) == lineData->end())
+				{
+					T_LineData linesToAdd;
+					if (data.has(sectionCurrent) && original.has(sectionCurrent))
+					{
+						auto const& collection = data[sectionCurrent];
+						auto const& collectionOriginal = original[sectionCurrent];
+						for (auto const& it : collection)
+						{
+							auto key = it.first;
+							if (collectionOriginal.has(key))
+							{
+								continue;
+							}
+							auto value = it.second;
+							INIStringUtil::replace(key, "=", "\\=");
+							INIStringUtil::trim(value);
+							linesToAdd.emplace_back(
+								key + ((prettyPrint) ? " = " : "=") + value
+							);
+						}
+					}
+					if (!linesToAdd.empty())
+					{
+						output.insert(
+							output.begin() + lastKeyLine,
+							linesToAdd.begin(),
+							linesToAdd.end()
+						);
+					}
+					if (writeNewKeys)
+					{
+						writeNewKeys = false;
+						--line;
+					}
+				}
+			}
+			for (auto const& it : data)
+			{
+				auto const& section = it.first;
+				if (original.has(section))
+				{
+					continue;
+				}
+				if (prettyPrint && output.size() > 0 && !output.back().empty())
+				{
+					output.emplace_back();
+				}
+				output.emplace_back("[" + section + "]");
+				auto const& collection = it.second;
+				for (auto const& it2 : collection)
+				{
+					auto key = it2.first;
+					auto value = it2.second;
+					INIStringUtil::replace(key, "=", "\\=");
+					INIStringUtil::trim(value);
+					output.emplace_back(
+						key + ((prettyPrint) ? " = " : "=") + value
+					);
+				}
+			}
+			return output;
+		}
+
+	public:
+		bool prettyPrint = false;
+
+		INIWriter(std::string const& filename)
+		: filename(filename)
+		{
+		}
+		~INIWriter() { }
+
+		bool operator<<(INIStructure& data)
+		{
+			struct stat buf;
+			bool fileExists = (stat(filename.c_str(), &buf) == 0);
+			if (!fileExists)
+			{
+				INIGenerator generator(filename);
+				generator.prettyPrint = prettyPrint;
+				return generator << data;
+			}
+			INIStructure originalData;
+			T_LineDataPtr lineData;
+			bool readSuccess = false;
+			{
+				INIReader reader(filename, true);
+				if ((readSuccess = reader >> originalData))
+				{
+					lineData = reader.getLines();
+				}
+			}
+			if (!readSuccess)
+			{
+				return false;
+			}
+			T_LineData output = getLazyOutput(lineData, data, originalData);
+			std::ofstream fileWriteStream(filename, std::ios::out | std::ios::binary);
+			if (fileWriteStream.is_open())
+			{
+				if (output.size())
+				{
+					auto line = output.begin();
+					for (;;)
+					{
+						fileWriteStream << *line;
+						if (++line == output.end())
+						{
+							break;
+						}
+						fileWriteStream << INIStringUtil::endl;
+					}
+				}
+				return true;
+			}
+			return false;
+		}
+	};
+
+	class INIFile
+	{
+	private:
+		std::string filename;
+
+	public:
+		INIFile(std::string const& filename)
+		: filename(filename)
+		{ }
+
+		~INIFile() { }
+
+		bool read(INIStructure& data) const
+		{
+			if (data.size())
+			{
+				data.clear();
+			}
+			if (filename.empty())
+			{
+				return false;
+			}
+			INIReader reader(filename);
+			return reader >> data;
+		}
+		bool generate(INIStructure const& data, bool pretty = false) const
+		{
+			if (filename.empty())
+			{
+				return false;
+			}
+			INIGenerator generator(filename);
+			generator.prettyPrint = pretty;
+			return generator << data;
+		}
+		bool write(INIStructure& data, bool pretty = false) const
+		{
+			if (filename.empty())
+			{
+				return false;
+			}
+			INIWriter writer(filename);
+			writer.prettyPrint = pretty;
+			return writer << data;
+		}
+	};
+}
+
+#endif

internal/lang.cpp

@@ -0,0 +1,98 @@
+#include "lang.hpp"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <3ds.h>
+static nlohmann::json appJson;
+
+std::string RenderD7::Lang::getSys()
+{
+   
+	u8 language = 1;
+	CFGU_GetSystemLanguage(&language);
+
+	switch(language) {
+		case 0:
+			return "jp"; // Japanese
+			break;
+
+		case 1:
+			return "en"; // English
+			break;
+
+		case 2:
+			return "fr"; // French
+			break;
+
+		case 3:
+			return "de"; // German
+			break;
+
+		case 4:
+			return "it"; // Italian
+			break;
+
+		case 5:
+			return "es"; // Spanish
+			break;
+
+		case 6:
+			return "zh-CN"; // Chinese (Simplified)
+			break;
+
+		// case 7:
+		// 	return "ko"; // Korean
+		// 	break;
+
+		// case 8:
+		// 	return "nl"; // Dutch
+		// 	break;
+
+		case 9:
+			return "pt"; // Portuguese
+			break;
+
+		case 10:
+			return "ru"; // Russian
+			break;
+
+		case 11:
+			return "zh-TW"; // Chinese (Traditional)
+			break;
+
+		default:
+			return "en"; // Fall back to English if missing
+			break;
+	}
+
+}
+std::string RenderD7::Lang::get(const std::string &key) {
+	if (!appJson.contains(key)) return key;
+
+	return appJson.at(key).get_ref<const std::string&>();
+}
+
+void RenderD7::Lang::load(const std::string &lang) {
+	FILE *values;
+
+	if (access(("romfs:/lang/" + lang + "/app.json").c_str(), F_OK) == 0) {
+		values = fopen(("romfs:/lang/" + lang + "/app.json").c_str(), "rt");
+		if (values) {
+			appJson = nlohmann::json::parse(values, nullptr, false);
+			fclose(values);
+		}
+		if (appJson.is_discarded())
+			appJson = { };
+		return;
+
+	} else {
+		values = fopen("romfs:/lang/en/app.json", "rt");
+		if (values) {
+			appJson = nlohmann::json::parse(values, nullptr, false);
+			fclose(values);
+		}
+		if (appJson.is_discarded())
+			appJson = { };
+		return;
+	}
+}

internal/lang.hpp

@@ -0,0 +1,11 @@
+#pragma once
+#include <string>
+#include "json.hpp"
+
+
+namespace RenderD7::Lang
+{
+    std::string getSys();
+    std::string get(const std::string &key);
+	void load(const std::string &lang);
+}

internal/parameter.hpp

@@ -0,0 +1,112 @@
+#pragma once
+#include <tuple>
+
+namespace RenderD7{
+    class Parameter
+    {
+    private:
+        using id = size_t;
+
+        template<typename T>
+        struct type { static void id() { } };
+
+        template<typename T>
+        static id type_id() { return reinterpret_cast<id>(&type<T>::id); }
+
+        template<typename T>
+        using decay = typename std::decay<T>::type;
+
+        template<typename T>
+        using none = typename std::enable_if<!std::is_same<Parameter, T>::value>::type;
+
+        struct base
+        {
+            virtual ~base() { }
+            virtual bool is(id) const = 0;
+            virtual base *copy() const = 0;
+        } *p = nullptr;
+
+        template<typename T>
+        struct data : base, std::tuple<T>
+        {
+            using std::tuple<T>::tuple;
+
+            T       &get()      & { return std::get<0>(*this); }
+            T const &get() const& { return std::get<0>(*this); }
+
+            bool is(id i) const override { return i == type_id<T>(); }
+            base *copy()  const override { return new data{get()}; }
+        };
+
+        template<typename T>
+        T &stat() { return static_cast<data<T>&>(*p).get(); }
+
+        template<typename T>
+        T const &stat() const { return static_cast<data<T> const&>(*p).get(); }
+
+        template<typename T>
+        T &dyn() { return dynamic_cast<data<T>&>(*p).get(); }
+
+        template<typename T>
+        T const &dyn() const { return dynamic_cast<data<T> const&>(*p).get(); }
+
+    public:
+        /**
+         * @brief Default constructor
+         */
+         Parameter() { }
+
+         /**
+          * @brief Destructs the Parameter
+          */
+        ~Parameter() { delete p; }
+
+        /**
+         * @brief Copy constructor
+         * @param s The Parameter to copy
+         */
+        Parameter(Parameter &&s) : p{s.p} { s.p = nullptr; }
+
+        /**
+         * @brief Const copy constructor
+         * @param s The Parameter to copy
+         */
+        Parameter(Parameter const &s) : p{s.p->copy()} { }
+
+        /**
+         * @brief Initializes the Parameter with the given value
+         * @param x The value to initialize the Parameter with
+         */
+        template<typename T, typename U = decay<T>, typename = none<U>>
+        Parameter(T &&x) : p{new data<U>{std::forward<T>(x)}} { }
+
+        /**
+         * @brief Overloads the assignment operator
+         * @param s The value to set the Parameter to
+         */
+        Parameter &operator=(Parameter s) { swap(*this, s); return *this; }
+
+        friend void swap(Parameter &s, Parameter &r) { std::swap(s.p, r.p); }
+
+        /**
+         * @brief Clears the Parameter
+         */
+        void clear() { delete p; p = nullptr; }
+
+        /**
+         * @brief Checks whether the Parameter is the given type
+         * @tparam T The type to check
+         * @return   Whether the Parameter has the given type or not
+         */
+        template<typename T>
+        bool is() const { return p ? p->is(type_id<T>()) : false; }
+
+        /**
+         * @brief Returns the value of the Parameter
+         * @tparam T The type of the Parameter
+         * @return The value of the Parameter
+         * @warning If the type of the Parameter doesn't match the type of it's stored value, it will result in undefined behaviour.
+         */
+        template<typename T> T &get() & { return stat<T>(); }
+    };
+} 

internal/thread.cpp

@@ -0,0 +1,81 @@
+#include "thread.hpp"
+namespace RenderD7 {
+    void Threads::Exit()
+    {
+
+    }
+    Thread::Thread() :
+                m_started(false),
+                m_running(false) { /* do nothing */ }
+
+    Thread::Thread(std::function<void(RenderD7::Parameter)> t_function, RenderD7::Parameter t_parameter, bool t_autostart, bool t_detached, unsigned long long int t_stackSize) :
+                m_started(false),
+                m_running(false) {
+        initialize(t_function, t_parameter, t_autostart, t_detached, t_stackSize);
+    }
+
+    Thread::~Thread() {
+        join();
+
+        if (m_started) threadFree(m_thread);
+    }
+
+    void Thread::initialize(std::function<void(RenderD7::Parameter)> t_function, RenderD7::Parameter t_parameter, bool t_autostart, bool t_detached, unsigned long long int t_stackSize) {
+        m_stackSize = t_stackSize;
+        m_data.m_parameter = t_parameter;
+        m_data.m_function = t_function;
+        m_data.m_running = &m_running;
+
+        if (t_autostart) {
+            start(t_detached);
+        }
+    }
+
+    void Thread::setStackSize(unsigned long long int t_stackSize) {
+        m_stackSize = t_stackSize;
+    }
+
+    void Thread::start(bool t_detached) {
+        if (!m_running) {
+            m_started = true;
+            m_running = true;
+            s32 prio;
+            svcGetThreadPriority(&prio, CUR_THREAD_HANDLE);
+            m_thread = threadCreate(threadFunction, &m_data, m_stackSize, prio + 1, -2, t_detached);
+        }
+    }
+
+    void Thread::detach() {
+        threadDetach(m_thread);
+        m_running = false;
+        m_started = false;
+    }
+
+    void Thread::join(long long unsigned int t_timeout) {
+        if (m_running) {
+            threadJoin(m_thread, t_timeout);
+            threadFree(m_thread);
+            m_running = false;
+            m_started = false;
+        }
+    }
+
+    bool Thread::isRunning() {
+        return m_running;
+    }
+
+    void Thread::sleep() {
+        svcSleepThread(0);
+    }
+
+    void Thread::sleep(int t_milliseconds) {
+        svcSleepThread(1000000 * t_milliseconds);
+    }
+
+    // private methods
+    void Thread::threadFunction(void* arg) {
+        RenderD7::Thread::ThreadData data = *static_cast<RenderD7::Thread::ThreadData*>(arg);
+        data.m_function(data.m_parameter);
+        *data.m_running = false;
+    }
+}

internal/thread.hpp

@@ -0,0 +1,119 @@
+#pragma once
+#include <3ds.h>
+#include <atomic>
+#include <functional>
+#include <string>
+#include "parameter.hpp"
+
+using CTRU_Thread = Thread;
+
+#define THREAD_STACK_SIZE 0x1000
+
+namespace RenderD7 {
+    namespace Threads
+    {
+        inline bool threadrunning = false;
+
+        struct Thread
+        {
+            Handle handle;
+            void (*ep)(void);
+            bool finished;
+            void* stacktop;
+        };
+
+        bool Create();
+        bool Join();
+        void Exit();
+    }
+    class Thread {
+    public:
+        /**
+         * @brief Default constructor
+         * @note This should only be called when calling m3d::Thread::initialize() before calling m3d::Thread::start()
+         */
+        Thread();
+        
+        /**
+         * @brief Constructs the thread
+         * @param t_function  The thread function
+         * @param t_parameter The parameter to pass to the function
+         * @param t_autostart Whether the thread should start instantly
+         * @param t_detached  Whether the thread starts detached or not
+         * @param t_stackSize The stacksize allocated for the thread in bytes (rounded to multiples of 8 bytes)
+         * @note t_function needs to be of type `void` and take one (and only one) parameter of type m3d::Parameter
+         * @warning If the thread priority is lower than the priority of the calling thread, the thread will never get executed. Use m3d::Thread::getCurrentPriority() to get the priority of the current thread
+         */
+        Thread(std::function<void(RenderD7::Parameter)> t_function, RenderD7::Parameter t_parameter = nullptr, bool t_autostart = false, bool t_detached = false, unsigned long long int t_stackSize = 4 * 1024);
+
+        /**
+        * @brief Destructs the thread
+        */
+        virtual ~Thread();
+
+        /**
+         * @brief Initializes the thread
+         * @param t_function  The thread function
+         * @param t_parameter The parameter to pass to the function
+         * @param t_autostart Whether the thread should start instantly
+         * @param t_detached  Whether the thread starts detached or not
+         * @param t_stackSize The stacksize allocated for the thread in bytes (rounded to multiples of 8 bytes)
+         * @note t_function needs to be of type `void` and take one (and only one) parameter of type m3d::Parameter
+         * @warning If the thread priority is lower than the priority of the calling thread, the thread will never get executed. Use m3d::Thread::getCurrentPriority() to get the priority of the current thread
+         */
+        void initialize(std::function<void(RenderD7::Parameter)> t_function, RenderD7::Parameter t_parameter = nullptr, bool t_autostart = false, bool t_detached = false, unsigned long long int t_stackSize = 4 * 1024);
+
+        /**
+         * @brief Sets the size of the stack that gets allocated for the next thread that get's started
+         * @param t_stackSize The allocated space in bytes (rounded to multiples of 8 bytes)
+         */
+        void setStackSize(unsigned long long int t_stackSize);
+
+        /**
+         * @brief Starts the thread. To restart it, call Thread::join() before
+         * @param t_detached Whether the thread should start detached or not
+         */
+        void start(bool t_detached = false);
+
+        /**
+         * @brief Detaches the thread
+         */
+        void detach();
+
+        /**
+         * @brief Waits for the thread to finish
+         * @param t_timeout The timeout in nanoseconds. Leave it for no timeout
+         */
+        void join(long long unsigned int t_timeout = U64_MAX);
+
+        bool isRunning();
+
+        /**
+         * @brief Puts the thread to sleep
+         *
+         * This is needed if you have multiple threads running at the same time. It doesn't affect the execution-time of the thread, it just makes it possible for the other threads to get their chance to shine.
+         */
+        static void sleep();
+
+        /**
+         * @brief Sleeps for the given time
+         * @param t_milliseconds The time to sleep in milliseconds
+         */
+        static void sleep(int t_milliseconds);
+
+    private:
+        struct ThreadData {
+            RenderD7::Parameter m_parameter;
+            std::function<void(RenderD7::Parameter)> m_function;
+            std::atomic<bool>* m_running;
+        };
+
+        static void threadFunction(void* t_arg);
+        /* data */
+        int m_priority, m_stackSize;
+        bool m_started;
+        std::atomic<bool> m_running;
+        RenderD7::Thread::ThreadData m_data;
+        CTRU_Thread m_thread;
+    };
+}

log.cpp

@@ -30,14 +30,15 @@ Log::Log()
 
 void Log::Init(const char *filename)
 {
-	this->filename = filename;
-	if ((access(filename, F_OK) == 0))
+        std::string name = "logs/Log_" + Log::logDate() + filename + ".txt";
+	this->filename = name.c_str();
+	if ((access(name.c_str(), F_OK) == 0))
 	{
 
 	}
 	else 
 	{
-		FILE* logfile = fopen((filename), "w");
+		FILE* logfile = fopen((name.c_str()), "w");
 		fclose(logfile);
 	}
 }