Use Raylib 5.0

emsdk_version

@@ -1 +1 @@
-3.1.44
+3.1.50

wasm_include/raylib.h

@@ -1,6 +1,6 @@
 /**********************************************************************************************
 *
-*   raylib v4.5 - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
+*   raylib v5.0 - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
 *
 *   FEATURES:
 *       - NO external dependencies, all required libraries included with raylib
@@ -81,10 +81,10 @@
 
 #include <stdarg.h>     // Required for: va_list - Only used by TraceLogCallback
 
-#define RAYLIB_VERSION_MAJOR 4
+#define RAYLIB_VERSION_MAJOR 5
-#define RAYLIB_VERSION_MINOR 5
+#define RAYLIB_VERSION_MINOR 0
 #define RAYLIB_VERSION_PATCH 0
-#define RAYLIB_VERSION  "4.5"
+#define RAYLIB_VERSION  "5.0"
 
 // Function specifiers in case library is build/used as a shared library (Windows)
 // NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll
@@ -133,12 +133,20 @@
 
 // NOTE: MSVC C++ compiler does not support compound literals (C99 feature)
 // Plain structures in C++ (without constructors) can be initialized with { }
+// This is called aggregate initialization (C++11 feature)
 #if defined(__cplusplus)
     #define CLITERAL(type)      type
 #else
     #define CLITERAL(type)      (type)
 #endif
 
+// Some compilers (mostly macos clang) default to C++98,
+// where aggregate initialization can't be used
+// So, give a more clear error stating how to fix this
+#if !defined(_MSC_VER) && (defined(__cplusplus) && __cplusplus < 201103L)
+    #error "C++11 or later is required. Add -std=c++11"
+#endif
+
 // NOTE: We set some defines with some data types declared by raylib
 // Other modules (raymath, rlgl) also require some of those types, so,
 // to be able to use those other modules as standalone (not depending on raylib)
@@ -402,6 +410,7 @@ typedef struct ModelAnimation {
     int frameCount;         // Number of animation frames
     BoneInfo *bones;        // Bones information (skeleton)
     Transform **framePoses; // Poses array by frame
+    char name[32];          // Animation name
 } ModelAnimation;
 
 // Ray, ray for raycasting
@@ -497,6 +506,20 @@ typedef struct FilePathList {
     char **paths;                   // Filepaths entries
 } FilePathList;
 
+// Automation event
+typedef struct AutomationEvent {
+    unsigned int frame;             // Event frame
+    unsigned int type;              // Event type (AutomationEventType)
+    int params[4];                  // Event parameters (if required)
+} AutomationEvent;
+
+// Automation event list
+typedef struct AutomationEventList {
+    unsigned int capacity;          // Events max entries (MAX_AUTOMATION_EVENTS)
+    unsigned int count;             // Events entries count
+    AutomationEvent *events;        // Events entries
+} AutomationEventList;
+
 //----------------------------------------------------------------------------------
 // Enumerators Definition
 //----------------------------------------------------------------------------------
@@ -517,6 +540,7 @@ typedef enum {
     FLAG_WINDOW_TRANSPARENT = 0x00000010,   // Set to allow transparent framebuffer
     FLAG_WINDOW_HIGHDPI     = 0x00002000,   // Set to support HighDPI
     FLAG_WINDOW_MOUSE_PASSTHROUGH = 0x00004000, // Set to support mouse passthrough, only supported when FLAG_WINDOW_UNDECORATED
+    FLAG_BORDERLESS_WINDOWED_MODE = 0x00008000, // Set to run program in borderless windowed mode
     FLAG_MSAA_4X_HINT       = 0x00000020,   // Set to try enabling MSAA 4X
     FLAG_INTERLACED_HINT    = 0x00010000    // Set to try enabling interlaced video format (for V3D)
 } ConfigFlags;
@@ -802,6 +826,9 @@ typedef enum {
     PIXELFORMAT_UNCOMPRESSED_R32,           // 32 bpp (1 channel - float)
     PIXELFORMAT_UNCOMPRESSED_R32G32B32,     // 32*3 bpp (3 channels - float)
     PIXELFORMAT_UNCOMPRESSED_R32G32B32A32,  // 32*4 bpp (4 channels - float)
+    PIXELFORMAT_UNCOMPRESSED_R16,           // 16 bpp (1 channel - half float)
+    PIXELFORMAT_UNCOMPRESSED_R16G16B16,     // 16*3 bpp (3 channels - half float)
+    PIXELFORMAT_UNCOMPRESSED_R16G16B16A16,  // 16*4 bpp (4 channels - half float)
     PIXELFORMAT_COMPRESSED_DXT1_RGB,        // 4 bpp (no alpha)
     PIXELFORMAT_COMPRESSED_DXT1_RGBA,       // 4 bpp (1 bit alpha)
     PIXELFORMAT_COMPRESSED_DXT3_RGBA,       // 8 bpp
@@ -905,8 +932,8 @@ typedef enum {
 // Callbacks to hook some internal functions
 // WARNING: These callbacks are intended for advance users
 typedef void (*TraceLogCallback)(int logLevel, const char *text, va_list args);  // Logging: Redirect trace log messages
-typedef unsigned char *(*LoadFileDataCallback)(const char *fileName, unsigned int *bytesRead);      // FileIO: Load binary data
+typedef unsigned char *(*LoadFileDataCallback)(const char *fileName, int *dataSize);    // FileIO: Load binary data
-typedef bool (*SaveFileDataCallback)(const char *fileName, void *data, unsigned int bytesToWrite);  // FileIO: Save binary data
+typedef bool (*SaveFileDataCallback)(const char *fileName, void *data, int dataSize);   // FileIO: Save binary data
 typedef char *(*LoadFileTextCallback)(const char *fileName);            // FileIO: Load text data
 typedef bool (*SaveFileTextCallback)(const char *fileName, char *text); // FileIO: Save text data
 
@@ -925,8 +952,8 @@ extern "C" {            // Prevents name mangling of functions
 
 // Window-related functions
 RLAPI void InitWindow(int width, int height, const char *title);  // Initialize window and OpenGL context
-RLAPI bool WindowShouldClose(void);                               // Check if KEY_ESCAPE pressed or Close icon pressed
 RLAPI void CloseWindow(void);                                     // Close window and unload OpenGL context
+RLAPI bool WindowShouldClose(void);                               // Check if application should close (KEY_ESCAPE pressed or windows close icon clicked)
 RLAPI bool IsWindowReady(void);                                   // Check if window has been initialized successfully
 RLAPI bool IsWindowFullscreen(void);                              // Check if window is currently fullscreen
 RLAPI bool IsWindowHidden(void);                                  // Check if window is currently hidden (only PLATFORM_DESKTOP)
@@ -938,17 +965,20 @@ RLAPI bool IsWindowState(unsigned int flag);                      // Check if on
 RLAPI void SetWindowState(unsigned int flags);                    // Set window configuration state using flags (only PLATFORM_DESKTOP)
 RLAPI void ClearWindowState(unsigned int flags);                  // Clear window configuration state flags
 RLAPI void ToggleFullscreen(void);                                // Toggle window state: fullscreen/windowed (only PLATFORM_DESKTOP)
+RLAPI void ToggleBorderlessWindowed(void);                        // Toggle window state: borderless windowed (only PLATFORM_DESKTOP)
 RLAPI void MaximizeWindow(void);                                  // Set window state: maximized, if resizable (only PLATFORM_DESKTOP)
 RLAPI void MinimizeWindow(void);                                  // Set window state: minimized, if resizable (only PLATFORM_DESKTOP)
 RLAPI void RestoreWindow(void);                                   // Set window state: not minimized/maximized (only PLATFORM_DESKTOP)
 RLAPI void SetWindowIcon(Image image);                            // Set icon for window (single image, RGBA 32bit, only PLATFORM_DESKTOP)
 RLAPI void SetWindowIcons(Image *images, int count);              // Set icon for window (multiple images, RGBA 32bit, only PLATFORM_DESKTOP)
-RLAPI void SetWindowTitle(const char *title);                     // Set title for window (only PLATFORM_DESKTOP)
+RLAPI void SetWindowTitle(const char *title);                     // Set title for window (only PLATFORM_DESKTOP and PLATFORM_WEB)
 RLAPI void SetWindowPosition(int x, int y);                       // Set window position on screen (only PLATFORM_DESKTOP)
-RLAPI void SetWindowMonitor(int monitor);                         // Set monitor for the current window (fullscreen mode)
+RLAPI void SetWindowMonitor(int monitor);                         // Set monitor for the current window
 RLAPI void SetWindowMinSize(int width, int height);               // Set window minimum dimensions (for FLAG_WINDOW_RESIZABLE)
+RLAPI void SetWindowMaxSize(int width, int height);               // Set window maximum dimensions (for FLAG_WINDOW_RESIZABLE)
 RLAPI void SetWindowSize(int width, int height);                  // Set window dimensions
 RLAPI void SetWindowOpacity(float opacity);                       // Set window opacity [0.0f..1.0f] (only PLATFORM_DESKTOP)
+RLAPI void SetWindowFocused(void);                                // Set window focused (only PLATFORM_DESKTOP)
 RLAPI void *GetWindowHandle(void);                                // Get native window handle
 RLAPI int GetScreenWidth(void);                                   // Get current screen width
 RLAPI int GetScreenHeight(void);                                  // Get current screen height
@@ -964,20 +994,12 @@ RLAPI int GetMonitorPhysicalHeight(int monitor);                  // Get specifi
 RLAPI int GetMonitorRefreshRate(int monitor);                     // Get specified monitor refresh rate
 RLAPI Vector2 GetWindowPosition(void);                            // Get window position XY on monitor
 RLAPI Vector2 GetWindowScaleDPI(void);                            // Get window scale DPI factor
-RLAPI const char *GetMonitorName(int monitor);                    // Get the human-readable, UTF-8 encoded name of the primary monitor
+RLAPI const char *GetMonitorName(int monitor);                    // Get the human-readable, UTF-8 encoded name of the specified monitor
 RLAPI void SetClipboardText(const char *text);                    // Set clipboard text content
 RLAPI const char *GetClipboardText(void);                         // Get clipboard text content
 RLAPI void EnableEventWaiting(void);                              // Enable waiting for events on EndDrawing(), no automatic event polling
 RLAPI void DisableEventWaiting(void);                             // Disable waiting for events on EndDrawing(), automatic events polling
 
-// Custom frame control functions
-// NOTE: Those functions are intended for advance users that want full control over the frame processing
-// By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timing + PollInputEvents()
-// To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL
-RLAPI void SwapScreenBuffer(void);                                // Swap back buffer with front buffer (screen drawing)
-RLAPI void PollInputEvents(void);                                 // Register all input events
-RLAPI void WaitTime(double seconds);                              // Wait for some time (halt program execution)
-
 // Cursor-related functions
 RLAPI void ShowCursor(void);                                      // Shows cursor
 RLAPI void HideCursor(void);                                      // Hides cursor
@@ -1033,24 +1055,37 @@ RLAPI Vector2 GetWorldToScreen2D(Vector2 position, Camera2D camera); // Get the
 
 // Timing-related functions
 RLAPI void SetTargetFPS(int fps);                                 // Set target FPS (maximum)
-RLAPI int GetFPS(void);                                           // Get current FPS
 RLAPI float GetFrameTime(void);                                   // Get time in seconds for last frame drawn (delta time)
 RLAPI double GetTime(void);                                       // Get elapsed time in seconds since InitWindow()
+RLAPI int GetFPS(void);                                           // Get current FPS
+
+// Custom frame control functions
+// NOTE: Those functions are intended for advance users that want full control over the frame processing
+// By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timing + PollInputEvents()
+// To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL
+RLAPI void SwapScreenBuffer(void);                                // Swap back buffer with front buffer (screen drawing)
+RLAPI void PollInputEvents(void);                                 // Register all input events
+RLAPI void WaitTime(double seconds);                              // Wait for some time (halt program execution)
+
+// Random values generation functions
+RLAPI void SetRandomSeed(unsigned int seed);                      // Set the seed for the random number generator
+RLAPI int GetRandomValue(int min, int max);                       // Get a random value between min and max (both included)
+RLAPI int *LoadRandomSequence(unsigned int count, int min, int max); // Load random values sequence, no values repeated
+RLAPI void UnloadRandomSequence(int *sequence);                   // Unload random values sequence
 
 // Misc. functions
-RLAPI int GetRandomValue(int min, int max);                       // Get a random value between min and max (both included)
-RLAPI void SetRandomSeed(unsigned int seed);                      // Set the seed for the random number generator
 RLAPI void TakeScreenshot(const char *fileName);                  // Takes a screenshot of current screen (filename extension defines format)
 RLAPI void SetConfigFlags(unsigned int flags);                    // Setup init configuration flags (view FLAGS)
+RLAPI void OpenURL(const char *url);                              // Open URL with default system browser (if available)
 
+// NOTE: Following functions implemented in module [utils]
+//------------------------------------------------------------------
 RLAPI void TraceLog(int logLevel, const char *text, ...);         // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR...)
 RLAPI void SetTraceLogLevel(int logLevel);                        // Set the current threshold (minimum) log level
 RLAPI void *MemAlloc(unsigned int size);                          // Internal memory allocator
 RLAPI void *MemRealloc(void *ptr, unsigned int size);             // Internal memory reallocator
 RLAPI void MemFree(void *ptr);                                    // Internal memory free
 
-RLAPI void OpenURL(const char *url);                              // Open URL with default system browser (if available)
-
 // Set custom callbacks
 // WARNING: Callbacks setup is intended for advance users
 RLAPI void SetTraceLogCallback(TraceLogCallback callback);         // Set custom trace log
@@ -1060,13 +1095,16 @@ RLAPI void SetLoadFileTextCallback(LoadFileTextCallback callback); // Set custom
 RLAPI void SetSaveFileTextCallback(SaveFileTextCallback callback); // Set custom file text data saver
 
 // Files management functions
-RLAPI unsigned char *LoadFileData(const char *fileName, unsigned int *bytesRead);       // Load file data as byte array (read)
+RLAPI unsigned char *LoadFileData(const char *fileName, int *dataSize); // Load file data as byte array (read)
 RLAPI void UnloadFileData(unsigned char *data);                   // Unload file data allocated by LoadFileData()
-RLAPI bool SaveFileData(const char *fileName, void *data, unsigned int bytesToWrite);   // Save data to file from byte array (write), returns true on success
+RLAPI bool SaveFileData(const char *fileName, void *data, int dataSize); // Save data to file from byte array (write), returns true on success
-RLAPI bool ExportDataAsCode(const unsigned char *data, unsigned int size, const char *fileName); // Export data to code (.h), returns true on success
+RLAPI bool ExportDataAsCode(const unsigned char *data, int dataSize, const char *fileName); // Export data to code (.h), returns true on success
 RLAPI char *LoadFileText(const char *fileName);                   // Load text data from file (read), returns a '\0' terminated string
 RLAPI void UnloadFileText(char *text);                            // Unload file text data allocated by LoadFileText()
 RLAPI bool SaveFileText(const char *fileName, char *text);        // Save text data to file (write), string must be '\0' terminated, returns true on success
+//------------------------------------------------------------------
+
+// File system functions
 RLAPI bool FileExists(const char *fileName);                      // Check if file exists
 RLAPI bool DirectoryExists(const char *dirPath);                  // Check if a directory path exists
 RLAPI bool IsFileExtension(const char *fileName, const char *ext); // Check file extension (including point: .png, .wav)
@@ -1077,7 +1115,7 @@ RLAPI const char *GetFileNameWithoutExt(const char *filePath);    // Get filenam
 RLAPI const char *GetDirectoryPath(const char *filePath);         // Get full path for a given fileName with path (uses static string)
 RLAPI const char *GetPrevDirectoryPath(const char *dirPath);      // Get previous directory path for a given path (uses static string)
 RLAPI const char *GetWorkingDirectory(void);                      // Get current working directory (uses static string)
-RLAPI const char *GetApplicationDirectory(void);                  // Get the directory if the running application (uses static string)
+RLAPI const char *GetApplicationDirectory(void);                  // Get the directory of the running application (uses static string)
 RLAPI bool ChangeDirectory(const char *dir);                      // Change working directory, return true on success
 RLAPI bool IsPathFile(const char *path);                          // Check if a given path is a file or a directory
 RLAPI FilePathList LoadDirectoryFiles(const char *dirPath);       // Load directory filepaths
@@ -1094,18 +1132,29 @@ RLAPI unsigned char *DecompressData(const unsigned char *compData, int compDataS
 RLAPI char *EncodeDataBase64(const unsigned char *data, int dataSize, int *outputSize);               // Encode data to Base64 string, memory must be MemFree()
 RLAPI unsigned char *DecodeDataBase64(const unsigned char *data, int *outputSize);                    // Decode Base64 string data, memory must be MemFree()
 
+// Automation events functionality
+RLAPI AutomationEventList LoadAutomationEventList(const char *fileName);                // Load automation events list from file, NULL for empty list, capacity = MAX_AUTOMATION_EVENTS
+RLAPI void UnloadAutomationEventList(AutomationEventList *list);                        // Unload automation events list from file
+RLAPI bool ExportAutomationEventList(AutomationEventList list, const char *fileName);   // Export automation events list as text file
+RLAPI void SetAutomationEventList(AutomationEventList *list);                           // Set automation event list to record to
+RLAPI void SetAutomationEventBaseFrame(int frame);                                      // Set automation event internal base frame to start recording
+RLAPI void StartAutomationEventRecording(void);                                         // Start recording automation events (AutomationEventList must be set)
+RLAPI void StopAutomationEventRecording(void);                                          // Stop recording automation events
+RLAPI void PlayAutomationEvent(AutomationEvent event);                                  // Play a recorded automation event
+
 //------------------------------------------------------------------------------------
 // Input Handling Functions (Module: core)
 //------------------------------------------------------------------------------------
 
 // Input-related functions: keyboard
 RLAPI bool IsKeyPressed(int key);                             // Check if a key has been pressed once
+RLAPI bool IsKeyPressedRepeat(int key);                       // Check if a key has been pressed again (Only PLATFORM_DESKTOP)
 RLAPI bool IsKeyDown(int key);                                // Check if a key is being pressed
 RLAPI bool IsKeyReleased(int key);                            // Check if a key has been released once
 RLAPI bool IsKeyUp(int key);                                  // Check if a key is NOT being pressed
-RLAPI void SetExitKey(int key);                               // Set a custom key to exit program (default is ESC)
 RLAPI int GetKeyPressed(void);                                // Get key pressed (keycode), call it multiple times for keys queued, returns 0 when the queue is empty
 RLAPI int GetCharPressed(void);                               // Get char pressed (unicode), call it multiple times for chars queued, returns 0 when the queue is empty
+RLAPI void SetExitKey(int key);                               // Set a custom key to exit program (default is ESC)
 
 // Input-related functions: gamepads
 RLAPI bool IsGamepadAvailable(int gamepad);                   // Check if a gamepad is available
@@ -1146,7 +1195,7 @@ RLAPI int GetTouchPointCount(void);                           // Get number of t
 // Gestures and Touch Handling Functions (Module: rgestures)
 //------------------------------------------------------------------------------------
 RLAPI void SetGesturesEnabled(unsigned int flags);      // Enable a set of gestures using flags
-RLAPI bool IsGestureDetected(int gesture);              // Check if a gesture have been detected
+RLAPI bool IsGestureDetected(unsigned int gesture);     // Check if a gesture have been detected
 RLAPI int GetGestureDetected(void);                     // Get latest detected gesture
 RLAPI float GetGestureHoldDuration(void);               // Get gesture hold time in milliseconds
 RLAPI Vector2 GetGestureDragVector(void);               // Get gesture drag vector
@@ -1172,18 +1221,17 @@ RLAPI void SetShapesTexture(Texture2D texture, Rectangle source);       // Set t
 RLAPI void DrawPixel(int posX, int posY, Color color);                                                   // Draw a pixel
 RLAPI void DrawPixelV(Vector2 position, Color color);                                                    // Draw a pixel (Vector version)
 RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color);                // Draw a line
-RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color);                                     // Draw a line (Vector version)
+RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color);                                     // Draw a line (using gl lines)
-RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color);                       // Draw a line defining thickness
+RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color);                       // Draw a line (using triangles/quads)
-RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color);                   // Draw a line using cubic-bezier curves in-out
+RLAPI void DrawLineStrip(Vector2 *points, int pointCount, Color color);                                  // Draw lines sequence (using gl lines)
-RLAPI void DrawLineBezierQuad(Vector2 startPos, Vector2 endPos, Vector2 controlPos, float thick, Color color); // Draw line using quadratic bezier curves with a control point
+RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color);                   // Draw line segment cubic-bezier in-out interpolation
-RLAPI void DrawLineBezierCubic(Vector2 startPos, Vector2 endPos, Vector2 startControlPos, Vector2 endControlPos, float thick, Color color); // Draw line using cubic bezier curves with 2 control points
-RLAPI void DrawLineStrip(Vector2 *points, int pointCount, Color color);                                  // Draw lines sequence
 RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color);                              // Draw a color-filled circle
 RLAPI void DrawCircleSector(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color);      // Draw a piece of a circle
 RLAPI void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw circle sector outline
 RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Color color2);       // Draw a gradient-filled circle
 RLAPI void DrawCircleV(Vector2 center, float radius, Color color);                                       // Draw a color-filled circle (Vector version)
 RLAPI void DrawCircleLines(int centerX, int centerY, float radius, Color color);                         // Draw circle outline
+RLAPI void DrawCircleLinesV(Vector2 center, float radius, Color color);                                  // Draw circle outline (Vector version)
 RLAPI void DrawEllipse(int centerX, int centerY, float radiusH, float radiusV, Color color);             // Draw ellipse
 RLAPI void DrawEllipseLines(int centerX, int centerY, float radiusH, float radiusV, Color color);        // Draw ellipse outline
 RLAPI void DrawRing(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring
@@ -1207,6 +1255,25 @@ RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Col
 RLAPI void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Color color);          // Draw a polygon outline of n sides
 RLAPI void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float lineThick, Color color); // Draw a polygon outline of n sides with extended parameters
 
+// Splines drawing functions
+RLAPI void DrawSplineLinear(Vector2 *points, int pointCount, float thick, Color color);                  // Draw spline: Linear, minimum 2 points
+RLAPI void DrawSplineBasis(Vector2 *points, int pointCount, float thick, Color color);                   // Draw spline: B-Spline, minimum 4 points
+RLAPI void DrawSplineCatmullRom(Vector2 *points, int pointCount, float thick, Color color);              // Draw spline: Catmull-Rom, minimum 4 points
+RLAPI void DrawSplineBezierQuadratic(Vector2 *points, int pointCount, float thick, Color color);         // Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...]
+RLAPI void DrawSplineBezierCubic(Vector2 *points, int pointCount, float thick, Color color);             // Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...]
+RLAPI void DrawSplineSegmentLinear(Vector2 p1, Vector2 p2, float thick, Color color);                    // Draw spline segment: Linear, 2 points
+RLAPI void DrawSplineSegmentBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: B-Spline, 4 points
+RLAPI void DrawSplineSegmentCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: Catmull-Rom, 4 points
+RLAPI void DrawSplineSegmentBezierQuadratic(Vector2 p1, Vector2 c2, Vector2 p3, float thick, Color color); // Draw spline segment: Quadratic Bezier, 2 points, 1 control point
+RLAPI void DrawSplineSegmentBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vector2 p4, float thick, Color color); // Draw spline segment: Cubic Bezier, 2 points, 2 control points
+
+// Spline segment point evaluation functions, for a given t [0.0f .. 1.0f]
+RLAPI Vector2 GetSplinePointLinear(Vector2 startPos, Vector2 endPos, float t);                           // Get (evaluate) spline point: Linear
+RLAPI Vector2 GetSplinePointBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float t);              // Get (evaluate) spline point: B-Spline
+RLAPI Vector2 GetSplinePointCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float t);         // Get (evaluate) spline point: Catmull-Rom
+RLAPI Vector2 GetSplinePointBezierQuad(Vector2 p1, Vector2 c2, Vector2 p3, float t);                     // Get (evaluate) spline point: Quadratic Bezier
+RLAPI Vector2 GetSplinePointBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vector2 p4, float t);        // Get (evaluate) spline point: Cubic Bezier
+
 // Basic shapes collision detection functions
 RLAPI bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2);                                           // Check collision between two rectangles
 RLAPI bool CheckCollisionCircles(Vector2 center1, float radius1, Vector2 center2, float radius2);        // Check collision between two circles
@@ -1227,6 +1294,7 @@ RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2);
 // NOTE: These functions do not require GPU access
 RLAPI Image LoadImage(const char *fileName);                                                             // Load image from file into CPU memory (RAM)
 RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize);       // Load image from RAW file data
+RLAPI Image LoadImageSvg(const char *fileNameOrString, int width, int height);                           // Load image from SVG file data or string with specified size
 RLAPI Image LoadImageAnim(const char *fileName, int *frames);                                            // Load image sequence from file (frames appended to image.data)
 RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize);      // Load image from memory buffer, fileType refers to extension: i.e. '.png'
 RLAPI Image LoadImageFromTexture(Texture2D texture);                                                     // Load image from GPU texture data
@@ -1234,13 +1302,14 @@ RLAPI Image LoadImageFromScreen(void);
 RLAPI bool IsImageReady(Image image);                                                                    // Check if an image is ready
 RLAPI void UnloadImage(Image image);                                                                     // Unload image from CPU memory (RAM)
 RLAPI bool ExportImage(Image image, const char *fileName);                                               // Export image data to file, returns true on success
+RLAPI unsigned char *ExportImageToMemory(Image image, const char *fileType, int *fileSize);              // Export image to memory buffer
 RLAPI bool ExportImageAsCode(Image image, const char *fileName);                                         // Export image as code file defining an array of bytes, returns true on success
 
 // Image generation functions
 RLAPI Image GenImageColor(int width, int height, Color color);                                           // Generate image: plain color
-RLAPI Image GenImageGradientV(int width, int height, Color top, Color bottom);                           // Generate image: vertical gradient
+RLAPI Image GenImageGradientLinear(int width, int height, int direction, Color start, Color end);        // Generate image: linear gradient, direction in degrees [0..360], 0=Vertical gradient
-RLAPI Image GenImageGradientH(int width, int height, Color left, Color right);                           // Generate image: horizontal gradient
 RLAPI Image GenImageGradientRadial(int width, int height, float density, Color inner, Color outer);      // Generate image: radial gradient
+RLAPI Image GenImageGradientSquare(int width, int height, float density, Color inner, Color outer);      // Generate image: square gradient
 RLAPI Image GenImageChecked(int width, int height, int checksX, int checksY, Color col1, Color col2);    // Generate image: checked
 RLAPI Image GenImageWhiteNoise(int width, int height, float factor);                                     // Generate image: white noise
 RLAPI Image GenImagePerlinNoise(int width, int height, int offsetX, int offsetY, float scale);           // Generate image: perlin noise
@@ -1267,6 +1336,7 @@ RLAPI void ImageMipmaps(Image *image);
 RLAPI void ImageDither(Image *image, int rBpp, int gBpp, int bBpp, int aBpp);                            // Dither image data to 16bpp or lower (Floyd-Steinberg dithering)
 RLAPI void ImageFlipVertical(Image *image);                                                              // Flip image vertically
 RLAPI void ImageFlipHorizontal(Image *image);                                                            // Flip image horizontally
+RLAPI void ImageRotate(Image *image, int degrees);                                                       // Rotate image by input angle in degrees (-359 to 359)
 RLAPI void ImageRotateCW(Image *image);                                                                  // Rotate image clockwise 90deg
 RLAPI void ImageRotateCCW(Image *image);                                                                 // Rotate image counter-clockwise 90deg
 RLAPI void ImageColorTint(Image *image, Color color);                                                    // Modify image color: tint
@@ -1351,13 +1421,13 @@ RLAPI int GetPixelDataSize(int width, int height, int format);              // G
 // Font loading/unloading functions
 RLAPI Font GetFontDefault(void);                                                            // Get the default Font
 RLAPI Font LoadFont(const char *fileName);                                                  // Load font from file into GPU memory (VRAM)
-RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *fontChars, int glyphCount);  // Load font from file with extended parameters, use NULL for fontChars and 0 for glyphCount to load the default character set
+RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *codepoints, int codepointCount);  // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set
 RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar);                        // Load font from Image (XNA style)
-RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *fontChars, int glyphCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
+RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
 RLAPI bool IsFontReady(Font font);                                                          // Check if a font is ready
-RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *fontChars, int glyphCount, int type); // Load font data for further use
+RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount, int type); // Load font data for further use
-RLAPI Image GenImageFontAtlas(const GlyphInfo *chars, Rectangle **recs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info
+RLAPI Image GenImageFontAtlas(const GlyphInfo *glyphs, Rectangle **glyphRecs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info
-RLAPI void UnloadFontData(GlyphInfo *chars, int glyphCount);                                // Unload font chars info data (RAM)
+RLAPI void UnloadFontData(GlyphInfo *glyphs, int glyphCount);                               // Unload font chars info data (RAM)
 RLAPI void UnloadFont(Font font);                                                           // Unload font from GPU memory (VRAM)
 RLAPI bool ExportFontAsCode(Font font, const char *fileName);                               // Export font as code file, returns true on success
 
@@ -1367,9 +1437,10 @@ RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color co
 RLAPI void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text using font and additional parameters
 RLAPI void DrawTextPro(Font font, const char *text, Vector2 position, Vector2 origin, float rotation, float fontSize, float spacing, Color tint); // Draw text using Font and pro parameters (rotation)
 RLAPI void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint); // Draw one character (codepoint)
-RLAPI void DrawTextCodepoints(Font font, const int *codepoints, int count, Vector2 position, float fontSize, float spacing, Color tint); // Draw multiple character (codepoint)
+RLAPI void DrawTextCodepoints(Font font, const int *codepoints, int codepointCount, Vector2 position, float fontSize, float spacing, Color tint); // Draw multiple character (codepoint)
 
 // Text font info functions
+RLAPI void SetTextLineSpacing(int spacing);                                                 // Set vertical line spacing when drawing with line-breaks
 RLAPI int MeasureText(const char *text, int fontSize);                                      // Measure string width for default font
 RLAPI Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing);    // Measure string size for Font
 RLAPI int GetGlyphIndex(Font font, int codepoint);                                          // Get glyph index position in font for a codepoint (unicode character), fallback to '?' if not found
@@ -1485,10 +1556,10 @@ RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture
 RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId);                  // Set material for a mesh
 
 // Model animations loading/unloading functions
-RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, unsigned int *animCount);   // Load model animations from file
+RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, int *animCount);            // Load model animations from file
 RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame);               // Update model animation pose
 RLAPI void UnloadModelAnimation(ModelAnimation anim);                                       // Unload animation data
-RLAPI void UnloadModelAnimations(ModelAnimation *animations, unsigned int count);           // Unload animation array data
+RLAPI void UnloadModelAnimations(ModelAnimation *animations, int animCount);                // Unload animation array data
 RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim);                         // Check model animation skeleton match
 
 // Collision detection functions
@@ -1511,6 +1582,7 @@ RLAPI void InitAudioDevice(void);                                     // Initial
 RLAPI void CloseAudioDevice(void);                                    // Close the audio device and context
 RLAPI bool IsAudioDeviceReady(void);                                  // Check if audio device has been initialized successfully
 RLAPI void SetMasterVolume(float volume);                             // Set master volume (listener)
+RLAPI float GetMasterVolume(void);                                    // Get master volume (listener)
 
 // Wave/Sound loading/unloading functions
 RLAPI Wave LoadWave(const char *fileName);                            // Load wave data from file
@@ -1518,10 +1590,12 @@ RLAPI Wave LoadWaveFromMemory(const char *fileType, const unsigned char *fileDat
 RLAPI bool IsWaveReady(Wave wave);                                    // Checks if wave data is ready
 RLAPI Sound LoadSound(const char *fileName);                          // Load sound from file
 RLAPI Sound LoadSoundFromWave(Wave wave);                             // Load sound from wave data
+RLAPI Sound LoadSoundAlias(Sound source);                             // Create a new sound that shares the same sample data as the source sound, does not own the sound data
 RLAPI bool IsSoundReady(Sound sound);                                 // Checks if a sound is ready
 RLAPI void UpdateSound(Sound sound, const void *data, int sampleCount); // Update sound buffer with new data
 RLAPI void UnloadWave(Wave wave);                                     // Unload wave data
 RLAPI void UnloadSound(Sound sound);                                  // Unload sound
+RLAPI void UnloadSoundAlias(Sound alias);                             // Unload a sound alias (does not deallocate sample data)
 RLAPI bool ExportWave(Wave wave, const char *fileName);               // Export wave data to file, returns true on success
 RLAPI bool ExportWaveAsCode(Wave wave, const char *fileName);         // Export wave sample data to code (.h), returns true on success
 
@@ -1575,10 +1649,10 @@ RLAPI void SetAudioStreamPan(AudioStream stream, float pan);          // Set pan
 RLAPI void SetAudioStreamBufferSizeDefault(int size);                 // Default size for new audio streams
 RLAPI void SetAudioStreamCallback(AudioStream stream, AudioCallback callback); // Audio thread callback to request new data
 
-RLAPI void AttachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Attach audio stream processor to stream
+RLAPI void AttachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Attach audio stream processor to stream, receives the samples as <float>s
 RLAPI void DetachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Detach audio stream processor from stream
 
-RLAPI void AttachAudioMixedProcessor(AudioCallback processor); // Attach audio stream processor to the entire audio pipeline
+RLAPI void AttachAudioMixedProcessor(AudioCallback processor); // Attach audio stream processor to the entire audio pipeline, receives the samples as <float>s
 RLAPI void DetachAudioMixedProcessor(AudioCallback processor); // Detach audio stream processor from the entire audio pipeline
 
 #if defined(__cplusplus)

wasm_include/raymath.h

@@ -2,8 +2,22 @@
 *
 *   raymath v1.5 - Math functions to work with Vector2, Vector3, Matrix and Quaternions
 *
-*   CONFIGURATION:
+*   CONVENTIONS:
+*     - Matrix structure is defined as row-major (memory layout) but parameters naming AND all
+*       math operations performed by the library consider the structure as it was column-major
+*       It is like transposed versions of the matrices are used for all the maths
+*       It benefits some functions making them cache-friendly and also avoids matrix
+*       transpositions sometimes required by OpenGL
+*       Example: In memory order, row0 is [m0 m4 m8 m12] but in semantic math row0 is [m0 m1 m2 m3]
+*     - Functions are always self-contained, no function use another raymath function inside,
+*       required code is directly re-implemented inside
+*     - Functions input parameters are always received by value (2 unavoidable exceptions)
+*     - Functions use always a "result" variable for return
+*     - Functions are always defined inline
+*     - Angles are always in radians (DEG2RAD/RAD2DEG macros provided for convenience)
+*     - No compound literals used to make sure libray is compatible with C++
 *
+*   CONFIGURATION:
 *       #define RAYMATH_IMPLEMENTATION
 *           Generates the implementation of the library into the included file.
 *           If not defined, the library is in header only mode and can be included in other headers
@@ -13,15 +27,6 @@
 *           Define static inline functions code, so #include header suffices for use.
 *           This may use up lots of memory.
 *
-*   CONVENTIONS:
-*
-*     - Functions are always self-contained, no function use another raymath function inside,
-*       required code is directly re-implemented inside
-*     - Functions input parameters are always received by value (2 unavoidable exceptions)
-*     - Functions use always a "result" variable for return
-*     - Functions are always defined inline
-*     - Angles are always in radians (DEG2RAD/RAD2DEG macros provided for convenience)
-*
 *
 *   LICENSE: zlib/libpng
 *
@@ -209,6 +214,10 @@ RMAPI float Wrap(float value, float min, float max)
 // Check whether two given floats are almost equal
 RMAPI int FloatEquals(float x, float y)
 {
+#if !defined(EPSILON)
+    #define EPSILON 0.000001f
+#endif
+
     int result = (fabsf(x - y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(x), fabsf(y))));
 
     return result;
@@ -310,7 +319,12 @@ RMAPI float Vector2DistanceSqr(Vector2 v1, Vector2 v2)
 // NOTE: Angle is calculated from origin point (0, 0)
 RMAPI float Vector2Angle(Vector2 v1, Vector2 v2)
 {
-    float result = atan2f(v2.y - v1.y, v2.x - v1.x);
+    float result = 0.0f;
+
+    float dot = v1.x*v2.x + v1.y*v2.y;
+    float det = v1.x*v2.y - v1.y*v2.x;
+
+    result = atan2f(det, dot);
 
     return result;
 }
@@ -322,17 +336,8 @@ RMAPI float Vector2LineAngle(Vector2 start, Vector2 end)
 {
     float result = 0.0f;
 
-    float dot = start.x*end.x + start.y*end.y;      // Dot product
+    // TODO(10/9/2023): Currently angles move clockwise, determine if this is wanted behavior
-
+    result = -atan2f(end.y - start.y, end.x - start.x);
-    float dotClamp = (dot < -1.0f)? -1.0f : dot;    // Clamp
-    if (dotClamp > 1.0f) dotClamp = 1.0f;
-
-    result = acosf(dotClamp);
-
-    // Alternative implementation, more costly
-    //float v1Length = sqrtf((start.x*start.x) + (start.y*start.y));
-    //float v2Length = sqrtf((end.x*end.x) + (end.y*end.y));
-    //float result = -acosf((start.x*end.x + start.y*end.y)/(v1Length*v2Length));
 
     return result;
 }
@@ -507,6 +512,10 @@ RMAPI Vector2 Vector2ClampValue(Vector2 v, float min, float max)
 // Check whether two given vectors are almost equal
 RMAPI int Vector2Equals(Vector2 p, Vector2 q)
 {
+#if !defined(EPSILON)
+    #define EPSILON 0.000001f
+#endif
+
     int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
                   ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y)))));
 
@@ -703,12 +712,48 @@ RMAPI Vector3 Vector3Normalize(Vector3 v)
     Vector3 result = v;
 
     float length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
-    if (length == 0.0f) length = 1.0f;
+    if (length != 0.0f)
+    {
         float ilength = 1.0f/length;
 
         result.x *= ilength;
         result.y *= ilength;
         result.z *= ilength;
+    }
+
+    return result;
+}
+
+//Calculate the projection of the vector v1 on to v2
+RMAPI Vector3 Vector3Project(Vector3 v1, Vector3 v2)
+{
+    Vector3 result = { 0 };
+    
+    float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+    float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
+
+    float mag = v1dv2/v2dv2;
+
+    result.x = v2.x*mag;
+    result.y = v2.y*mag;
+    result.z = v2.z*mag;
+
+    return result;
+}
+
+//Calculate the rejection of the vector v1 on to v2
+RMAPI Vector3 Vector3Reject(Vector3 v1, Vector3 v2)
+{
+    Vector3 result = { 0 };
+    
+    float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+    float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
+
+    float mag = v1dv2/v2dv2;
+
+    result.x = v1.x - (v2.x*mag);
+    result.y = v1.y - (v2.y*mag);
+    result.z = v1.z - (v2.z*mag);
 
     return result;
 }
@@ -1055,6 +1100,10 @@ RMAPI Vector3 Vector3ClampValue(Vector3 v, float min, float max)
 // Check whether two given vectors are almost equal
 RMAPI int Vector3Equals(Vector3 p, Vector3 q)
 {
+#if !defined(EPSILON)
+    #define EPSILON 0.000001f
+#endif
+
     int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
                  ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) &&
                  ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z)))));
@@ -1062,12 +1111,11 @@ RMAPI int Vector3Equals(Vector3 p, Vector3 q)
     return result;
 }
 
-// Compute the direction of a refracted ray where v specifies the
+// Compute the direction of a refracted ray
-// normalized direction of the incoming ray, n specifies the
+// v: normalized direction of the incoming ray
-// normalized normal vector of the interface of two optical media,
+// n: normalized normal vector of the interface of two optical media
-// and r specifies the ratio of the refractive index of the medium
+// r: ratio of the refractive index of the medium from where the ray comes
-// from where the ray comes to the refractive index of the medium
+//    to the refractive index of the medium on the other side of the surface
-// on the other side of the surface
 RMAPI Vector3 Vector3Refract(Vector3 v, Vector3 n, float r)
 {
     Vector3 result = { 0 };
@@ -1509,11 +1557,11 @@ RMAPI Matrix MatrixFrustum(double left, double right, double bottom, double top,
 
 // Get perspective projection matrix
 // NOTE: Fovy angle must be provided in radians
-RMAPI Matrix MatrixPerspective(double fovy, double aspect, double near, double far)
+RMAPI Matrix MatrixPerspective(double fovY, double aspect, double nearPlane, double farPlane)
 {
     Matrix result = { 0 };
 
-    double top = near*tan(fovy*0.5);
+    double top = nearPlane*tan(fovY*0.5);
     double bottom = -top;
     double right = top*aspect;
     double left = -right;
@@ -1521,27 +1569,27 @@ RMAPI Matrix MatrixPerspective(double fovy, double aspect, double near, double f
     // MatrixFrustum(-right, right, -top, top, near, far);
     float rl = (float)(right - left);
     float tb = (float)(top - bottom);
-    float fn = (float)(far - near);
+    float fn = (float)(farPlane - nearPlane);
 
-    result.m0 = ((float)near*2.0f)/rl;
+    result.m0 = ((float)nearPlane*2.0f)/rl;
-    result.m5 = ((float)near*2.0f)/tb;
+    result.m5 = ((float)nearPlane*2.0f)/tb;
     result.m8 = ((float)right + (float)left)/rl;
     result.m9 = ((float)top + (float)bottom)/tb;
-    result.m10 = -((float)far + (float)near)/fn;
+    result.m10 = -((float)farPlane + (float)nearPlane)/fn;
     result.m11 = -1.0f;
-    result.m14 = -((float)far*(float)near*2.0f)/fn;
+    result.m14 = -((float)farPlane*(float)nearPlane*2.0f)/fn;
 
     return result;
 }
 
 // Get orthographic projection matrix
-RMAPI Matrix MatrixOrtho(double left, double right, double bottom, double top, double near, double far)
+RMAPI Matrix MatrixOrtho(double left, double right, double bottom, double top, double nearPlane, double farPlane)
 {
     Matrix result = { 0 };
 
     float rl = (float)(right - left);
     float tb = (float)(top - bottom);
-    float fn = (float)(far - near);
+    float fn = (float)(farPlane - nearPlane);
 
     result.m0 = 2.0f/rl;
     result.m1 = 0.0f;
@@ -1557,7 +1605,7 @@ RMAPI Matrix MatrixOrtho(double left, double right, double bottom, double top, d
     result.m11 = 0.0f;
     result.m12 = -((float)left + (float)right)/rl;
     result.m13 = -((float)top + (float)bottom)/tb;
-    result.m14 = -((float)far + (float)near)/fn;
+    result.m14 = -((float)farPlane + (float)nearPlane)/fn;
     result.m15 = 1.0f;
 
     return result;
@@ -1812,6 +1860,10 @@ RMAPI Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount)
 {
     Quaternion result = { 0 };
 
+#if !defined(EPSILON)
+    #define EPSILON 0.000001f
+#endif
+
     float cosHalfTheta = q1.x*q2.x + q1.y*q2.y + q1.z*q2.z + q1.w*q2.w;
 
     if (cosHalfTheta < 0)
@@ -1827,7 +1879,7 @@ RMAPI Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount)
         float halfTheta = acosf(cosHalfTheta);
         float sinHalfTheta = sqrtf(1.0f - cosHalfTheta*cosHalfTheta);
 
-        if (fabsf(sinHalfTheta) < 0.001f)
+        if (fabsf(sinHalfTheta) < EPSILON)
         {
             result.x = (q1.x*0.5f + q2.x*0.5f);
             result.y = (q1.y*0.5f + q2.y*0.5f);
@@ -2040,7 +2092,7 @@ RMAPI void QuaternionToAxisAngle(Quaternion q, Vector3 *outAxis, float *outAngle
     float resAngle = 2.0f*acosf(q.w);
     float den = sqrtf(1.0f - q.w*q.w);
 
-    if (den > 0.0001f)
+    if (den > EPSILON)
     {
         resAxis.x = q.x/den;
         resAxis.y = q.y/den;
@@ -2119,6 +2171,10 @@ RMAPI Quaternion QuaternionTransform(Quaternion q, Matrix mat)
 // Check whether two given quaternions are almost equal
 RMAPI int QuaternionEquals(Quaternion p, Quaternion q)
 {
+#if !defined(EPSILON)
+    #define EPSILON 0.000001f
+#endif
+
     int result = (((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) &&
                   ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) &&
                   ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))) &&