raylib.h

/**********************************************************************************************
*
*   raylib - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
*
*   FEATURES:
*       - NO external dependencies, all required libraries included with raylib
*       - Multiplatform: Windows, Linux, FreeBSD, OpenBSD, NetBSD, DragonFly, MacOS, UWP, Android, Raspberry Pi, HTML5.
*       - Written in plain C code (C99) in PascalCase/camelCase notation
*       - Hardware accelerated with OpenGL (1.1, 2.1, 3.3 or ES2 - choose at compile)
*       - Unique OpenGL abstraction layer (usable as standalone module): [rlgl]
*       - Powerful fonts module (XNA SpriteFonts, BMFonts, TTF)
*       - Outstanding texture formats support, including compressed formats (DXT, ETC, ASTC)
*       - Full 3d support for 3d Shapes, Models, Billboards, Heightmaps and more!
*       - Flexible Materials system, supporting classic maps and PBR maps
*       - Skeletal Animation support (CPU bones-based animation)
*       - Shaders support, including Model shaders and Postprocessing shaders
*       - Powerful math module for Vector, Matrix and Quaternion operations: [raymath]
*       - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, XM, MOD)
*       - VR stereo rendering with configurable HMD device parameters
*       - Bindings to multiple programming languages available!
*
*   NOTES:
*       One custom font is loaded by default when InitWindow() [core]
*       If using OpenGL 3.3 or ES2, one default shader is loaded automatically (internally defined) [rlgl]
*       If using OpenGL 3.3 or ES2, several vertex buffers (VAO/VBO) are created to manage lines-triangles-quads
*
*   DEPENDENCIES (included):
*       [core] rglfw (github.com/glfw/glfw) for window/context management and input (only PLATFORM_DESKTOP)
*       [rlgl] glad (github.com/Dav1dde/glad) for OpenGL 3.3 extensions loading (only PLATFORM_DESKTOP)
*       [raudio] miniaudio (github.com/dr-soft/miniaudio) for audio device/context management
*
*   OPTIONAL DEPENDENCIES (included):
*       [core] rgif (Charlie Tangora, Ramon Santamaria) for GIF recording
*       [textures] stb_image (Sean Barret) for images loading (BMP, TGA, PNG, JPEG, HDR...)
*       [textures] stb_image_write (Sean Barret) for image writting (BMP, TGA, PNG, JPG)
*       [textures] stb_image_resize (Sean Barret) for image resizing algorythms
*       [textures] stb_perlin (Sean Barret) for Perlin noise image generation
*       [text] stb_truetype (Sean Barret) for ttf fonts loading
*       [text] stb_rect_pack (Sean Barret) for rectangles packing
*       [models] par_shapes (Philip Rideout) for parametric 3d shapes generation
*       [models] tinyobj_loader_c (Syoyo Fujita) for models loading (OBJ, MTL)
*       [models] cgltf (Johannes Kuhlmann) for models loading (glTF)
*       [raudio] stb_vorbis (Sean Barret) for OGG audio loading
*       [raudio] dr_flac (David Reid) for FLAC audio file loading
*       [raudio] dr_mp3 (David Reid) for MP3 audio file loading
*       [raudio] jar_xm (Joshua Reisenauer) for XM audio module loading
*       [raudio] jar_mod (Joshua Reisenauer) for MOD audio module loading
*
*
*   LICENSE: zlib/libpng
*
*   raylib is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
*   BSD-like license that allows static linking with closed source software:
*
*   Copyright (c) 2013-2019 Ramon Santamaria (@raysan5)
*
*   This software is provided "as-is", without any express or implied warranty. In no event
*   will the authors be held liable for any damages arising from the use of this software.
*
*   Permission is granted to anyone to use this software for any purpose, including commercial
*   applications, and to alter it and redistribute it freely, subject to the following restrictions:
*
*     1. The origin of this software must not be misrepresented; you must not claim that you
*     wrote the original software. If you use this software in a product, an acknowledgment
*     in the product documentation would be appreciated but is not required.
*
*     2. Altered source versions must be plainly marked as such, and must not be misrepresented
*     as being the original software.
*
*     3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/

#ifndef RAYLIB_H
#define RAYLIB_H

#include <stdarg.h> // Required for: va_list - Only used by TraceLogCallback

#if defined(_WIN32) && defined(BUILD_LIBTYPE_SHARED)
#define RLAPI __declspec(dllexport) // We are building raylib as a Win32 shared library (.dll)
#elif defined(_WIN32) && defined(USE_LIBTYPE_SHARED)
#define RLAPI __declspec(dllimport) // We are using raylib as a Win32 shared library (.dll)
#else
#define RLAPI // We are building or using raylib as a static library (or Linux shared library)
#endif

//----------------------------------------------------------------------------------
// Some basic Defines
//----------------------------------------------------------------------------------
#ifndef PI
#define PI 3.14159265358979323846f
#endif

#define DEG2RAD (PI / 180.0f)
#define RAD2DEG (180.0f / PI)

#define MAX_TOUCH_POINTS 10 // Maximum number of touch points supported

// Shader and material limits
#define MAX_SHADER_LOCATIONS 32 // Maximum number of predefined locations stored in shader struct
#define MAX_MATERIAL_MAPS 12    // Maximum number of texture maps stored in shader struct

// Allow custom memory allocators
#ifndef RL_MALLOC
#define RL_MALLOC(sz) malloc(sz)
#endif
#ifndef RL_CALLOC
#define RL_CALLOC(n, sz) calloc(n, sz)
#endif
#ifndef RL_FREE
#define RL_FREE(p) free(p)
#endif

// NOTE: MSC C++ compiler does not support compound literals (C99 feature)
// Plain structures in C++ (without constructors) can be initialized from { } initializers.
#if defined(__cplusplus)
#define CLITERAL
#else
#define CLITERAL (Color)
#endif

// Some Basic Colors
// NOTE: Custom raylib color palette for amazing visuals on WHITE background
#define LIGHTGRAY \
    CLITERAL { 200, 200, 200, 255 } // Light Gray
#define GRAY \
    CLITERAL { 130, 130, 130, 255 } // Gray
#define DARKGRAY \
    CLITERAL { 80, 80, 80, 255 } // Dark Gray
#define YELLOW \
    CLITERAL { 253, 249, 0, 255 } // Yellow
#define GOLD \
    CLITERAL { 255, 203, 0, 255 } // Gold
#define ORANGE \
    CLITERAL { 255, 161, 0, 255 } // Orange
#define PINK \
    CLITERAL { 255, 109, 194, 255 } // Pink
#define RED \
    CLITERAL { 230, 41, 55, 255 } // Red
#define MAROON \
    CLITERAL { 190, 33, 55, 255 } // Maroon
#define GREEN \
    CLITERAL { 0, 228, 48, 255 } // Green
#define LIME \
    CLITERAL { 0, 158, 47, 255 } // Lime
#define DARKGREEN \
    CLITERAL { 0, 117, 44, 255 } // Dark Green
#define SKYBLUE \
    CLITERAL { 102, 191, 255, 255 } // Sky Blue
#define BLUE \
    CLITERAL { 0, 121, 241, 255 } // Blue
#define DARKBLUE \
    CLITERAL { 0, 82, 172, 255 } // Dark Blue
#define PURPLE \
    CLITERAL { 200, 122, 255, 255 } // Purple
#define VIOLET \
    CLITERAL { 135, 60, 190, 255 } // Violet
#define DARKPURPLE \
    CLITERAL { 112, 31, 126, 255 } // Dark Purple
#define BEIGE \
    CLITERAL { 211, 176, 131, 255 } // Beige
#define BROWN \
    CLITERAL { 127, 106, 79, 255 } // Brown
#define DARKBROWN \
    CLITERAL { 76, 63, 47, 255 } // Dark Brown

#define WHITE \
    CLITERAL { 255, 255, 255, 255 } // White
#define BLACK \
    CLITERAL { 0, 0, 0, 255 } // Black
#define BLANK \
    CLITERAL { 0, 0, 0, 0 } // Blank (Transparent)
#define MAGENTA \
    CLITERAL { 255, 0, 255, 255 } // Magenta
#define RAYWHITE \
    CLITERAL { 245, 245, 245, 255 } // My own White (raylib logo)

// Temporal hack to avoid breaking old codebases using
// deprecated raylib implementation of these functions
#define FormatText TextFormat
#define SubText TextSubtext
#define ShowWindow UnhideWindow

//----------------------------------------------------------------------------------
// Structures Definition
//----------------------------------------------------------------------------------
// Boolean type
// MODIFIED FOR RAYLIB-RUST FORCE USAGE OF STANDARD BOOL TYPE
#if defined(__STDC__) && __STDC_VERSION__ >= 199901L
#include <stdbool.h>
#elif !defined(__cplusplus) && !defined(bool)
typedef enum
{
    false,
    true
} bool;
#endif

// Vector2 type
typedef struct Vector2
{
    float x;
    float y;
} Vector2;

// Vector3 type
typedef struct Vector3
{
    float x;
    float y;
    float z;
} Vector3;

// Vector4 type
typedef struct Vector4
{
    float x;
    float y;
    float z;
    float w;
} Vector4;

// Quaternion type, same as Vector4
typedef Vector4 Quaternion;

// Matrix type (OpenGL style 4x4 - right handed, column major)
typedef struct Matrix
{
    float m0, m4, m8, m12;
    float m1, m5, m9, m13;
    float m2, m6, m10, m14;
    float m3, m7, m11, m15;
} Matrix;

// Color type, RGBA (32bit)
typedef struct Color
{
    unsigned char r;
    unsigned char g;
    unsigned char b;
    unsigned char a;
} Color;

// Rectangle type
typedef struct Rectangle
{
    float x;
    float y;
    float width;
    float height;
} Rectangle;

// Image type, bpp always RGBA (32bit)
// NOTE: Data stored in CPU memory (RAM)
typedef struct Image
{
    void *data;  // Image raw data
    int width;   // Image base width
    int height;  // Image base height
    int mipmaps; // Mipmap levels, 1 by default
    int format;  // Data format (PixelFormat type)
} Image;

// Texture2D type
// NOTE: Data stored in GPU memory
typedef struct Texture2D
{
    unsigned int id; // OpenGL texture id
    int width;       // Texture base width
    int height;      // Texture base height
    int mipmaps;     // Mipmap levels, 1 by default
    int format;      // Data format (PixelFormat type)
} Texture2D;

// Texture type, same as Texture2D
typedef Texture2D Texture;

// TextureCubemap type, actually, same as Texture2D
typedef Texture2D TextureCubemap;

// RenderTexture2D type, for texture rendering
typedef struct RenderTexture2D
{
    unsigned int id;   // OpenGL Framebuffer Object (FBO) id
    Texture2D texture; // Color buffer attachment texture
    Texture2D depth;   // Depth buffer attachment texture
    bool depthTexture; // Track if depth attachment is a texture or renderbuffer
} RenderTexture2D;

// RenderTexture type, same as RenderTexture2D
typedef RenderTexture2D RenderTexture;

// N-Patch layout info
typedef struct NPatchInfo
{
    Rectangle sourceRec; // Region in the texture
    int left;            // left border offset
    int top;             // top border offset
    int right;           // right border offset
    int bottom;          // bottom border offset
    int type;            // layout of the n-patch: 3x3, 1x3 or 3x1
} NPatchInfo;

// Font character info
typedef struct CharInfo
{
    int value;           // Character value (Unicode)
    Rectangle rec;       // Character rectangle in sprite font
    int offsetX;         // Character offset X when drawing
    int offsetY;         // Character offset Y when drawing
    int advanceX;        // Character advance position X
    unsigned char *data; // Character pixel data (grayscale)
} CharInfo;

// Font type, includes texture and charSet array data
typedef struct Font
{
    Texture2D texture; // Font texture
    int baseSize;      // Base size (default chars height)
    int charsCount;    // Number of characters
    CharInfo *chars;   // Characters info data
} Font;

#define SpriteFont Font // SpriteFont type fallback, defaults to Font

// Camera type, defines a camera position/orientation in 3d space
typedef struct Camera3D
{
    Vector3 position; // Camera position
    Vector3 target;   // Camera target it looks-at
    Vector3 up;       // Camera up vector (rotation over its axis)
    float fovy;       // Camera field-of-view apperture in Y (degrees) in perspective, used as near plane width in orthographic
    int type;         // Camera type, defines projection type: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC
} Camera3D;

typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D

// Camera2D type, defines a 2d camera
typedef struct Camera2D
{
    Vector2 offset; // Camera offset (displacement from target)
    Vector2 target; // Camera target (rotation and zoom origin)
    float rotation; // Camera rotation in degrees
    float zoom;     // Camera zoom (scaling), should be 1.0f by default
} Camera2D;

// Vertex data definning a mesh
// NOTE: Data stored in CPU memory (and GPU)
typedef struct Mesh
{
    int vertexCount;   // Number of vertices stored in arrays
    int triangleCount; // Number of triangles stored (indexed or not)

    // Default vertex data
    float *vertices;         // Vertex position (XYZ - 3 components per vertex) (shader-location = 0)
    float *texcoords;        // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1)
    float *texcoords2;       // Vertex second texture coordinates (useful for lightmaps) (shader-location = 5)
    float *normals;          // Vertex normals (XYZ - 3 components per vertex) (shader-location = 2)
    float *tangents;         // Vertex tangents (XYZW - 4 components per vertex) (shader-location = 4)
    unsigned char *colors;   // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3)
    unsigned short *indices; // Vertex indices (in case vertex data comes indexed)

    // Animation vertex data
    float *animVertices; // Animated vertex positions (after bones transformations)
    float *animNormals;  // Animated normals (after bones transformations)
    int *boneIds;        // Vertex bone ids, up to 4 bones influence by vertex (skinning)
    float *boneWeights;  // Vertex bone weight, up to 4 bones influence by vertex (skinning)

    // OpenGL identifiers
    unsigned int vaoId;    // OpenGL Vertex Array Object id
    unsigned int vboId[7]; // OpenGL Vertex Buffer Objects id (default vertex data)
} Mesh;

// Shader type (generic)
typedef struct Shader
{
    unsigned int id;                // Shader program id
    int locs[MAX_SHADER_LOCATIONS]; // Shader locations array
} Shader;

// Material texture map
typedef struct MaterialMap
{
    Texture2D texture; // Material map texture
    Color color;       // Material map color
    float value;       // Material map value
} MaterialMap;

// Material type (generic)
typedef struct Material
{
    Shader shader;                       // Material shader
    MaterialMap maps[MAX_MATERIAL_MAPS]; // Material maps
    float *params;                       // Material generic parameters (if required)
} Material;

// Transformation properties
typedef struct Transform
{
    Vector3 translation; // Translation
    Quaternion rotation; // Rotation
    Vector3 scale;       // Scale
} Transform;

// Bone information
typedef struct BoneInfo
{
    char name[32]; // Bone name
    int parent;    // Bone parent
} BoneInfo;

// Model type
typedef struct Model
{
    Matrix transform; // Local transform matrix

    int meshCount; // Number of meshes
    Mesh *meshes;  // Meshes array

    int materialCount;   // Number of materials
    Material *materials; // Materials array
    int *meshMaterial;   // Mesh material number

    // Animation data
    int boneCount;       // Number of bones
    BoneInfo *bones;     // Bones information (skeleton)
    Transform *bindPose; // Bones base transformation (pose)
} Model;

// Model animation
typedef struct ModelAnimation
{
    int boneCount;   // Number of bones
    BoneInfo *bones; // Bones information (skeleton)

    int frameCount;         // Number of animation frames
    Transform **framePoses; // Poses array by frame
} ModelAnimation;

// Ray type (useful for raycast)
typedef struct Ray
{
    Vector3 position;  // Ray position (origin)
    Vector3 direction; // Ray direction
} Ray;

// Raycast hit information
typedef struct RayHitInfo
{
    bool hit;         // Did the ray hit something?
    float distance;   // Distance to nearest hit
    Vector3 position; // Position of nearest hit
    Vector3 normal;   // Surface normal of hit
} RayHitInfo;

// Bounding box type
typedef struct BoundingBox
{
    Vector3 min; // Minimum vertex box-corner
    Vector3 max; // Maximum vertex box-corner
} BoundingBox;

// Wave type, defines audio wave data
typedef struct Wave
{
    unsigned int sampleCount; // Number of samples
    unsigned int sampleRate;  // Frequency (samples per second)
    unsigned int sampleSize;  // Bit depth (bits per sample): 8, 16, 32 (24 not supported)
    unsigned int channels;    // Number of channels (1-mono, 2-stereo)
    void *data;               // Buffer data pointer
} Wave;

// Sound source type
typedef struct Sound
{
    void *audioBuffer; // Pointer to internal data used by the audio system

    unsigned int source; // Audio source id
    unsigned int buffer; // Audio buffer id
    int format;          // Audio format specifier
} Sound;

// Music type (file streaming from memory)
// NOTE: Anything longer than ~10 seconds should be streamed
typedef struct MusicData *Music;

// Audio stream type
// NOTE: Useful to create custom audio streams not bound to a specific file
typedef struct AudioStream
{
    unsigned int sampleRate; // Frequency (samples per second)
    unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported)
    unsigned int channels;   // Number of channels (1-mono, 2-stereo)

    void *audioBuffer; // Pointer to internal data used by the audio system.

    int format;              // Audio format specifier
    unsigned int source;     // Audio source id
    unsigned int buffers[2]; // Audio buffers (double buffering)
} AudioStream;

// Head-Mounted-Display device parameters
typedef struct VrDeviceInfo
{
    int hResolution;               // HMD horizontal resolution in pixels
    int vResolution;               // HMD vertical resolution in pixels
    float hScreenSize;             // HMD horizontal size in meters
    float vScreenSize;             // HMD vertical size in meters
    float vScreenCenter;           // HMD screen center in meters
    float eyeToScreenDistance;     // HMD distance between eye and display in meters
    float lensSeparationDistance;  // HMD lens separation distance in meters
    float interpupillaryDistance;  // HMD IPD (distance between pupils) in meters
    float lensDistortionValues[4]; // HMD lens distortion constant parameters
    float chromaAbCorrection[4];   // HMD chromatic aberration correction parameters
} VrDeviceInfo;

//----------------------------------------------------------------------------------
// Enumerators Definition
//----------------------------------------------------------------------------------
// System config flags
// NOTE: Used for bit masks
typedef enum
{
    FLAG_SHOW_LOGO = 1,           // Set to show raylib logo at startup
    FLAG_FULLSCREEN_MODE = 2,     // Set to run program in fullscreen
    FLAG_WINDOW_RESIZABLE = 4,    // Set to allow resizable window
    FLAG_WINDOW_UNDECORATED = 8,  // Set to disable window decoration (frame and buttons)
    FLAG_WINDOW_TRANSPARENT = 16, // Set to allow transparent window
    FLAG_WINDOW_HIDDEN = 128,     // Set to create the window initially hidden
    FLAG_MSAA_4X_HINT = 32,       // Set to try enabling MSAA 4X
    FLAG_VSYNC_HINT = 64          // Set to try enabling V-Sync on GPU
} ConfigFlag;

// Trace log type
typedef enum
{
    LOG_ALL = 0, // Display all logs
    LOG_TRACE,
    LOG_DEBUG,
    LOG_INFO,
    LOG_WARNING,
    LOG_ERROR,
    LOG_FATAL,
    LOG_NONE // Disable logging
} TraceLogType;

// Keyboard keys
typedef enum
{
    // Alphanumeric keys
    KEY_APOSTROPHE = 39,
    KEY_COMMA = 44,
    KEY_MINUS = 45,
    KEY_PERIOD = 46,
    KEY_SLASH = 47,
    KEY_ZERO = 48,
    KEY_ONE = 49,
    KEY_TWO = 50,
    KEY_THREE = 51,
    KEY_FOUR = 52,
    KEY_FIVE = 53,
    KEY_SIX = 54,
    KEY_SEVEN = 55,
    KEY_EIGHT = 56,
    KEY_NINE = 57,
    KEY_SEMICOLON = 59,
    KEY_EQUAL = 61,
    KEY_A = 65,
    KEY_B = 66,
    KEY_C = 67,
    KEY_D = 68,
    KEY_E = 69,
    KEY_F = 70,
    KEY_G = 71,
    KEY_H = 72,
    KEY_I = 73,
    KEY_J = 74,
    KEY_K = 75,
    KEY_L = 76,
    KEY_M = 77,
    KEY_N = 78,
    KEY_O = 79,
    KEY_P = 80,
    KEY_Q = 81,
    KEY_R = 82,
    KEY_S = 83,
    KEY_T = 84,
    KEY_U = 85,
    KEY_V = 86,
    KEY_W = 87,
    KEY_X = 88,
    KEY_Y = 89,
    KEY_Z = 90,

    // Function keys
    KEY_SPACE = 32,
    KEY_ESCAPE = 256,
    KEY_ENTER = 257,
    KEY_TAB = 258,
    KEY_BACKSPACE = 259,
    KEY_INSERT = 260,
    KEY_DELETE = 261,
    KEY_RIGHT = 262,
    KEY_LEFT = 263,
    KEY_DOWN = 264,
    KEY_UP = 265,
    KEY_PAGE_UP = 266,
    KEY_PAGE_DOWN = 267,
    KEY_HOME = 268,
    KEY_END = 269,
    KEY_CAPS_LOCK = 280,
    KEY_SCROLL_LOCK = 281,
    KEY_NUM_LOCK = 282,
    KEY_PRINT_SCREEN = 283,
    KEY_PAUSE = 284,
    KEY_F1 = 290,
    KEY_F2 = 291,
    KEY_F3 = 292,
    KEY_F4 = 293,
    KEY_F5 = 294,
    KEY_F6 = 295,
    KEY_F7 = 296,
    KEY_F8 = 297,
    KEY_F9 = 298,
    KEY_F10 = 299,
    KEY_F11 = 300,
    KEY_F12 = 301,
    KEY_LEFT_SHIFT = 340,
    KEY_LEFT_CONTROL = 341,
    KEY_LEFT_ALT = 342,
    KEY_LEFT_SUPER = 343,
    KEY_RIGHT_SHIFT = 344,
    KEY_RIGHT_CONTROL = 345,
    KEY_RIGHT_ALT = 346,
    KEY_RIGHT_SUPER = 347,
    KEY_KB_MENU = 348,
    KEY_LEFT_BRACKET = 91,
    KEY_BACKSLASH = 92,
    KEY_RIGHT_BRACKET = 93,
    KEY_GRAVE = 96,

    // Keypad keys
    KEY_KP_0 = 320,
    KEY_KP_1 = 321,
    KEY_KP_2 = 322,
    KEY_KP_3 = 323,
    KEY_KP_4 = 324,
    KEY_KP_5 = 325,
    KEY_KP_6 = 326,
    KEY_KP_7 = 327,
    KEY_KP_8 = 328,
    KEY_KP_9 = 329,
    KEY_KP_DECIMAL = 330,
    KEY_KP_DIVIDE = 331,
    KEY_KP_MULTIPLY = 332,
    KEY_KP_SUBTRACT = 333,
    KEY_KP_ADD = 334,
    KEY_KP_ENTER = 335,
    KEY_KP_EQUAL = 336
} KeyboardKey;

// Android buttons
typedef enum
{
    KEY_BACK = 4,
    KEY_MENU = 82,
    KEY_VOLUME_UP = 24,
    KEY_VOLUME_DOWN = 25
} AndroidButton;

// Mouse buttons
typedef enum
{
    MOUSE_LEFT_BUTTON = 0,
    MOUSE_RIGHT_BUTTON = 1,
    MOUSE_MIDDLE_BUTTON = 2
} MouseButton;

// Gamepad number
typedef enum
{
    GAMEPAD_PLAYER1 = 0,
    GAMEPAD_PLAYER2 = 1,
    GAMEPAD_PLAYER3 = 2,
    GAMEPAD_PLAYER4 = 3
} GamepadNumber;

// Gamepad Buttons
typedef enum
{
    // This is here just for error checking
    GAMEPAD_BUTTON_UNKNOWN = 0,

    // This is normally [A,B,X,Y]/[Circle,Triangle,Square,Cross]
    // No support for 6 button controllers though..
    GAMEPAD_BUTTON_LEFT_FACE_UP,
    GAMEPAD_BUTTON_LEFT_FACE_RIGHT,
    GAMEPAD_BUTTON_LEFT_FACE_DOWN,
    GAMEPAD_BUTTON_LEFT_FACE_LEFT,

    // This is normally a DPAD
    GAMEPAD_BUTTON_RIGHT_FACE_UP,
    GAMEPAD_BUTTON_RIGHT_FACE_RIGHT,
    GAMEPAD_BUTTON_RIGHT_FACE_DOWN,
    GAMEPAD_BUTTON_RIGHT_FACE_LEFT,

    // Triggers
    GAMEPAD_BUTTON_LEFT_TRIGGER_1,
    GAMEPAD_BUTTON_LEFT_TRIGGER_2,
    GAMEPAD_BUTTON_RIGHT_TRIGGER_1,
    GAMEPAD_BUTTON_RIGHT_TRIGGER_2,

    // These are buttons in the center of the gamepad
    GAMEPAD_BUTTON_MIDDLE_LEFT,  //PS3 Select
    GAMEPAD_BUTTON_MIDDLE,       //PS Button/XBOX Button
    GAMEPAD_BUTTON_MIDDLE_RIGHT, //PS3 Start

    // These are the joystick press in buttons
    GAMEPAD_BUTTON_LEFT_THUMB,
    GAMEPAD_BUTTON_RIGHT_THUMB
} GamepadButton;

typedef enum
{
    // This is here just for error checking
    GAMEPAD_AXIS_UNKNOWN = 0,

    // Left stick
    GAMEPAD_AXIS_LEFT_X,
    GAMEPAD_AXIS_LEFT_Y,

    // Right stick
    GAMEPAD_AXIS_RIGHT_X,
    GAMEPAD_AXIS_RIGHT_Y,

    // Pressure levels for the back triggers
    GAMEPAD_AXIS_LEFT_TRIGGER, // [1..-1] (pressure-level)
    GAMEPAD_AXIS_RIGHT_TRIGGER // [1..-1] (pressure-level)
} GamepadAxis;

// Shader location point type
typedef enum
{
    LOC_VERTEX_POSITION = 0,
    LOC_VERTEX_TEXCOORD01,
    LOC_VERTEX_TEXCOORD02,
    LOC_VERTEX_NORMAL,
    LOC_VERTEX_TANGENT,
    LOC_VERTEX_COLOR,
    LOC_MATRIX_MVP,
    LOC_MATRIX_MODEL,
    LOC_MATRIX_VIEW,
    LOC_MATRIX_PROJECTION,
    LOC_VECTOR_VIEW,
    LOC_COLOR_DIFFUSE,
    LOC_COLOR_SPECULAR,
    LOC_COLOR_AMBIENT,
    LOC_MAP_ALBEDO,    // LOC_MAP_DIFFUSE
    LOC_MAP_METALNESS, // LOC_MAP_SPECULAR
    LOC_MAP_NORMAL,
    LOC_MAP_ROUGHNESS,
    LOC_MAP_OCCLUSION,
    LOC_MAP_EMISSION,
    LOC_MAP_HEIGHT,
    LOC_MAP_CUBEMAP,
    LOC_MAP_IRRADIANCE,
    LOC_MAP_PREFILTER,
    LOC_MAP_BRDF
} ShaderLocationIndex;

#define LOC_MAP_DIFFUSE LOC_MAP_ALBEDO
#define LOC_MAP_SPECULAR LOC_MAP_METALNESS

// Shader uniform data types
typedef enum
{
    UNIFORM_FLOAT = 0,
    UNIFORM_VEC2,
    UNIFORM_VEC3,
    UNIFORM_VEC4,
    UNIFORM_INT,
    UNIFORM_IVEC2,
    UNIFORM_IVEC3,
    UNIFORM_IVEC4,
    UNIFORM_SAMPLER2D
} ShaderUniformDataType;

// Material map type
typedef enum
{
    MAP_ALBEDO = 0,    // MAP_DIFFUSE
    MAP_METALNESS = 1, // MAP_SPECULAR
    MAP_NORMAL = 2,
    MAP_ROUGHNESS = 3,
    MAP_OCCLUSION,
    MAP_EMISSION,
    MAP_HEIGHT,
    MAP_CUBEMAP,    // NOTE: Uses GL_TEXTURE_CUBE_MAP
    MAP_IRRADIANCE, // NOTE: Uses GL_TEXTURE_CUBE_MAP
    MAP_PREFILTER,  // NOTE: Uses GL_TEXTURE_CUBE_MAP
    MAP_BRDF
} MaterialMapType;

#define MAP_DIFFUSE MAP_ALBEDO
#define MAP_SPECULAR MAP_METALNESS

// Pixel formats
// NOTE: Support depends on OpenGL version and platform
typedef enum
{
    UNCOMPRESSED_GRAYSCALE = 1, // 8 bit per pixel (no alpha)
    UNCOMPRESSED_GRAY_ALPHA,    // 8*2 bpp (2 channels)
    UNCOMPRESSED_R5G6B5,        // 16 bpp
    UNCOMPRESSED_R8G8B8,        // 24 bpp
    UNCOMPRESSED_R5G5B5A1,      // 16 bpp (1 bit alpha)
    UNCOMPRESSED_R4G4B4A4,      // 16 bpp (4 bit alpha)
    UNCOMPRESSED_R8G8B8A8,      // 32 bpp
    UNCOMPRESSED_R32,           // 32 bpp (1 channel - float)
    UNCOMPRESSED_R32G32B32,     // 32*3 bpp (3 channels - float)
    UNCOMPRESSED_R32G32B32A32,  // 32*4 bpp (4 channels - float)
    COMPRESSED_DXT1_RGB,        // 4 bpp (no alpha)
    COMPRESSED_DXT1_RGBA,       // 4 bpp (1 bit alpha)
    COMPRESSED_DXT3_RGBA,       // 8 bpp
    COMPRESSED_DXT5_RGBA,       // 8 bpp
    COMPRESSED_ETC1_RGB,        // 4 bpp
    COMPRESSED_ETC2_RGB,        // 4 bpp
    COMPRESSED_ETC2_EAC_RGBA,   // 8 bpp
    COMPRESSED_PVRT_RGB,        // 4 bpp
    COMPRESSED_PVRT_RGBA,       // 4 bpp
    COMPRESSED_ASTC_4x4_RGBA,   // 8 bpp
    COMPRESSED_ASTC_8x8_RGBA    // 2 bpp
} PixelFormat;

// Texture parameters: filter mode
// NOTE 1: Filtering considers mipmaps if available in the texture
// NOTE 2: Filter is accordingly set for minification and magnification
typedef enum
{
    FILTER_POINT = 0,       // No filter, just pixel aproximation
    FILTER_BILINEAR,        // Linear filtering
    FILTER_TRILINEAR,       // Trilinear filtering (linear with mipmaps)
    FILTER_ANISOTROPIC_4X,  // Anisotropic filtering 4x
    FILTER_ANISOTROPIC_8X,  // Anisotropic filtering 8x
    FILTER_ANISOTROPIC_16X, // Anisotropic filtering 16x
} TextureFilterMode;

// Cubemap layout type
typedef enum
{
    CUBEMAP_AUTO_DETECT = 0,     // Automatically detect layout type
    CUBEMAP_LINE_VERTICAL,       // Layout is defined by a vertical line with faces
    CUBEMAP_LINE_HORIZONTAL,     // Layout is defined by an horizontal line with faces
    CUBEMAP_CROSS_THREE_BY_FOUR, // Layout is defined by a 3x4 cross with cubemap faces
    CUBEMAP_CROSS_FOUR_BY_THREE, // Layout is defined by a 4x3 cross with cubemap faces
    CUBEMAP_PANORAMA             // Layout is defined by a panorama image (equirectangular map)
} CubemapLayoutType;

// Texture parameters: wrap mode
typedef enum
{
    WRAP_REPEAT = 0,    // Repeats texture in tiled mode
    WRAP_CLAMP,         // Clamps texture to edge pixel in tiled mode
    WRAP_MIRROR_REPEAT, // Mirrors and repeats the texture in tiled mode
    WRAP_MIRROR_CLAMP   // Mirrors and clamps to border the texture in tiled mode
} TextureWrapMode;

// Font type, defines generation method
typedef enum
{
    FONT_DEFAULT = 0, // Default font generation, anti-aliased
    FONT_BITMAP,      // Bitmap font generation, no anti-aliasing
    FONT_SDF          // SDF font generation, requires external shader
} FontType;

// Color blending modes (pre-defined)
typedef enum
{
    BLEND_ALPHA = 0, // Blend textures considering alpha (default)
    BLEND_ADDITIVE,  // Blend textures adding colors
    BLEND_MULTIPLIED // Blend textures multiplying colors
} BlendMode;

// Gestures type
// NOTE: It could be used as flags to enable only some gestures
typedef enum
{
    GESTURE_NONE = 0,
    GESTURE_TAP = 1,
    GESTURE_DOUBLETAP = 2,
    GESTURE_HOLD = 4,
    GESTURE_DRAG = 8,
    GESTURE_SWIPE_RIGHT = 16,
    GESTURE_SWIPE_LEFT = 32,
    GESTURE_SWIPE_UP = 64,
    GESTURE_SWIPE_DOWN = 128,
    GESTURE_PINCH_IN = 256,
    GESTURE_PINCH_OUT = 512
} GestureType;

// Camera system modes
typedef enum
{
    CAMERA_CUSTOM = 0,
    CAMERA_FREE,
    CAMERA_ORBITAL,
    CAMERA_FIRST_PERSON,
    CAMERA_THIRD_PERSON
} CameraMode;

// Camera projection modes
typedef enum
{
    CAMERA_PERSPECTIVE = 0,
    CAMERA_ORTHOGRAPHIC
} CameraType;

// Type of n-patch
typedef enum
{
    NPT_9PATCH = 0,       // Npatch defined by 3x3 tiles
    NPT_3PATCH_VERTICAL,  // Npatch defined by 1x3 tiles
    NPT_3PATCH_HORIZONTAL // Npatch defined by 3x1 tiles
} NPatchType;

// Callbacks to be implemented by users
typedef void (*TraceLogCallback)(int logType, const char *text, va_list args);

#if defined(__cplusplus)
extern "C"
{ // Prevents name mangling of functions
#endif

    //------------------------------------------------------------------------------------
    // Global Variables Definition
    //------------------------------------------------------------------------------------
    // It's lonely here...

    //------------------------------------------------------------------------------------
    // Window and Graphics Device Functions (Module: core)
    //------------------------------------------------------------------------------------

    // 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 IsWindowReady(void);                                  // Check if window has been initialized successfully
    RLAPI bool IsWindowMinimized(void);                              // Check if window has been minimized (or lost focus)
    RLAPI bool IsWindowResized(void);                                // Check if window has been resized
    RLAPI bool IsWindowHidden(void);                                 // Check if window is currently hidden
    RLAPI void ToggleFullscreen(void);                               // Toggle fullscreen mode (only PLATFORM_DESKTOP)
    RLAPI void UnhideWindow(void);                                   // Show the window
    RLAPI void HideWindow(void);                                     // Hide the window
    RLAPI void SetWindowIcon(Image image);                           // Set icon for window (only PLATFORM_DESKTOP)
    RLAPI void SetWindowTitle(const char *title);                    // Set title for window (only PLATFORM_DESKTOP)
    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 SetWindowMinSize(int width, int height);              // Set window minimum dimensions (for FLAG_WINDOW_RESIZABLE)
    RLAPI void SetWindowSize(int width, int height);                 // Set window dimensions
    RLAPI void *GetWindowHandle(void);                               // Get native window handle
    RLAPI int GetScreenWidth(void);                                  // Get current screen width
    RLAPI int GetScreenHeight(void);                                 // Get current screen height
    RLAPI int GetMonitorCount(void);                                 // Get number of connected monitors
    RLAPI int GetMonitorWidth(int monitor);                          // Get primary monitor width
    RLAPI int GetMonitorHeight(int monitor);                         // Get primary monitor height
    RLAPI int GetMonitorPhysicalWidth(int monitor);                  // Get primary monitor physical width in millimetres
    RLAPI int GetMonitorPhysicalHeight(int monitor);                 // Get primary monitor physical height in millimetres
    RLAPI const char *GetMonitorName(int monitor);                   // Get the human-readable, UTF-8 encoded name of the primary monitor
    RLAPI const char *GetClipboardText(void);                        // Get clipboard text content
    RLAPI void SetClipboardText(const char *text);                   // Set clipboard text content

    // Cursor-related functions
    RLAPI void ShowCursor(void);     // Shows cursor
    RLAPI void HideCursor(void);     // Hides cursor
    RLAPI bool IsCursorHidden(void); // Check if cursor is not visible
    RLAPI void EnableCursor(void);   // Enables cursor (unlock cursor)
    RLAPI void DisableCursor(void);  // Disables cursor (lock cursor)

    // Drawing-related functions
    RLAPI void ClearBackground(Color color);             // Set background color (framebuffer clear color)
    RLAPI void BeginDrawing(void);                       // Setup canvas (framebuffer) to start drawing
    RLAPI void EndDrawing(void);                         // End canvas drawing and swap buffers (double buffering)
    RLAPI void BeginMode2D(Camera2D camera);             // Initialize 2D mode with custom camera (2D)
    RLAPI void EndMode2D(void);                          // Ends 2D mode with custom camera
    RLAPI void BeginMode3D(Camera3D camera);             // Initializes 3D mode with custom camera (3D)
    RLAPI void EndMode3D(void);                          // Ends 3D mode and returns to default 2D orthographic mode
    RLAPI void BeginTextureMode(RenderTexture2D target); // Initializes render texture for drawing
    RLAPI void EndTextureMode(void);                     // Ends drawing to render texture

    // Screen-space-related functions
    RLAPI Ray GetMouseRay(Vector2 mousePosition, Camera camera);     // Returns a ray trace from mouse position
    RLAPI Vector2 GetWorldToScreen(Vector3 position, Camera camera); // Returns the screen space position for a 3d world space position
    RLAPI Matrix GetCameraMatrix(Camera camera);                     // Returns camera transform matrix (view matrix)

    // Timing-related functions
    RLAPI void SetTargetFPS(int fps); // Set target FPS (maximum)
    RLAPI int GetFPS(void);           // Returns current FPS
    RLAPI float GetFrameTime(void);   // Returns time in seconds for last frame drawn
    RLAPI double GetTime(void);       // Returns elapsed time in seconds since InitWindow()

    // Color-related functions
    RLAPI int ColorToInt(Color color);          // Returns hexadecimal value for a Color
    RLAPI Vector4 ColorNormalize(Color color);  // Returns color normalized as float [0..1]
    RLAPI Vector3 ColorToHSV(Color color);      // Returns HSV values for a Color
    RLAPI Color ColorFromHSV(Vector3 hsv);      // Returns a Color from HSV values
    RLAPI Color GetColor(int hexValue);         // Returns a Color struct from hexadecimal value
    RLAPI Color Fade(Color color, float alpha); // Color fade-in or fade-out, alpha goes from 0.0f to 1.0f

    // Misc. functions
    RLAPI void SetConfigFlags(unsigned char flags);            // Setup window configuration flags (view FLAGS)
    RLAPI void SetTraceLogLevel(int logType);                  // Set the current threshold (minimum) log level
    RLAPI void SetTraceLogExit(int logType);                   // Set the exit threshold (minimum) log level
    RLAPI void SetTraceLogCallback(TraceLogCallback callback); // Set a trace log callback to enable custom logging
    RLAPI void TraceLog(int logType, const char *text, ...);   // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR)
    RLAPI void TakeScreenshot(const char *fileName);           // Takes a screenshot of current screen (saved a .png)
    RLAPI int GetRandomValue(int min, int max);                // Returns a random value between min and max (both included)

    // Files management functions
    RLAPI bool FileExists(const char *fileName);                       // Check if file exists
    RLAPI bool IsFileExtension(const char *fileName, const char *ext); // Check file extension
    RLAPI const char *GetExtension(const char *fileName);              // Get pointer to extension for a filename string
    RLAPI const char *GetFileName(const char *filePath);               // Get pointer to filename for a path string
    RLAPI const char *GetFileNameWithoutExt(const char *filePath);     // Get filename string without extension (memory should be freed)
    RLAPI const char *GetDirectoryPath(const char *fileName);          // Get full path for a given fileName (uses static string)
    RLAPI const char *GetWorkingDirectory(void);                       // Get current working directory (uses static string)
    RLAPI char **GetDirectoryFiles(const char *dirPath, int *count);   // Get filenames in a directory path (memory should be freed)
    RLAPI void ClearDirectoryFiles(void);                              // Clear directory files paths buffers (free memory)
    RLAPI bool ChangeDirectory(const char *dir);                       // Change working directory, returns true if success
    RLAPI bool IsFileDropped(void);                                    // Check if a file has been dropped into window
    RLAPI char **GetDroppedFiles(int *count);                          // Get dropped files names (memory should be freed)
    RLAPI void ClearDroppedFiles(void);                                // Clear dropped files paths buffer (free memory)
    RLAPI long GetFileModTime(const char *fileName);                   // Get file modification time (last write time)

    // Persistent storage management
    RLAPI void StorageSaveValue(int position, int value); // Save integer value to storage file (to defined position)
    RLAPI int StorageLoadValue(int position);             // Load integer value from storage file (from defined position)

    RLAPI void OpenURL(const char *url); // Open URL with default system browser (if available)

    //------------------------------------------------------------------------------------
    // Input Handling Functions (Module: core)
    //------------------------------------------------------------------------------------

    // Input-related functions: keyboard
    RLAPI bool IsKeyPressed(int key);  // Detect if a key has been pressed once
    RLAPI bool IsKeyDown(int key);     // Detect if a key is being pressed
    RLAPI bool IsKeyReleased(int key); // Detect if a key has been released once
    RLAPI bool IsKeyUp(int key);       // Detect if a key is NOT being pressed
    RLAPI int GetKeyPressed(void);     // Get latest key pressed
    RLAPI void SetExitKey(int key);    // Set a custom key to exit program (default is ESC)

    // Input-related functions: gamepads
    RLAPI bool IsGamepadAvailable(int gamepad);                  // Detect if a gamepad is available
    RLAPI bool IsGamepadName(int gamepad, const char *name);     // Check gamepad name (if available)
    RLAPI const char *GetGamepadName(int gamepad);               // Return gamepad internal name id
    RLAPI bool IsGamepadButtonPressed(int gamepad, int button);  // Detect if a gamepad button has been pressed once
    RLAPI bool IsGamepadButtonDown(int gamepad, int button);     // Detect if a gamepad button is being pressed
    RLAPI bool IsGamepadButtonReleased(int gamepad, int button); // Detect if a gamepad button has been released once
    RLAPI bool IsGamepadButtonUp(int gamepad, int button);       // Detect if a gamepad button is NOT being pressed
    RLAPI int GetGamepadButtonPressed(void);                     // Get the last gamepad button pressed
    RLAPI int GetGamepadAxisCount(int gamepad);                  // Return gamepad axis count for a gamepad
    RLAPI float GetGamepadAxisMovement(int gamepad, int axis);   // Return axis movement value for a gamepad axis

    // Input-related functions: mouse
    RLAPI bool IsMouseButtonPressed(int button);          // Detect if a mouse button has been pressed once
    RLAPI bool IsMouseButtonDown(int button);             // Detect if a mouse button is being pressed
    RLAPI bool IsMouseButtonReleased(int button);         // Detect if a mouse button has been released once
    RLAPI bool IsMouseButtonUp(int button);               // Detect if a mouse button is NOT being pressed
    RLAPI int GetMouseX(void);                            // Returns mouse position X
    RLAPI int GetMouseY(void);                            // Returns mouse position Y
    RLAPI Vector2 GetMousePosition(void);                 // Returns mouse position XY
    RLAPI void SetMousePosition(int x, int y);            // Set mouse position XY
    RLAPI void SetMouseOffset(int offsetX, int offsetY);  // Set mouse offset
    RLAPI void SetMouseScale(float scaleX, float scaleY); // Set mouse scaling
    RLAPI int GetMouseWheelMove(void);                    // Returns mouse wheel movement Y

    // Input-related functions: touch
    RLAPI int GetTouchX(void);                 // Returns touch position X for touch point 0 (relative to screen size)
    RLAPI int GetTouchY(void);                 // Returns touch position Y for touch point 0 (relative to screen size)
    RLAPI Vector2 GetTouchPosition(int index); // Returns touch position XY for a touch point index (relative to screen size)

    //------------------------------------------------------------------------------------
    // Gestures and Touch Handling Functions (Module: gestures)
    //------------------------------------------------------------------------------------
    RLAPI void SetGesturesEnabled(unsigned int gestureFlags); // Enable a set of gestures using flags
    RLAPI bool IsGestureDetected(int gesture);                // Check if a gesture have been detected
    RLAPI int GetGestureDetected(void);                       // Get latest detected gesture
    RLAPI int GetTouchPointsCount(void);                      // Get touch points count
    RLAPI float GetGestureHoldDuration(void);                 // Get gesture hold time in milliseconds
    RLAPI Vector2 GetGestureDragVector(void);                 // Get gesture drag vector
    RLAPI float GetGestureDragAngle(void);                    // Get gesture drag angle
    RLAPI Vector2 GetGesturePinchVector(void);                // Get gesture pinch delta
    RLAPI float GetGesturePinchAngle(void);                   // Get gesture pinch angle

    //------------------------------------------------------------------------------------
    // Camera System Functions (Module: camera)
    //------------------------------------------------------------------------------------
    RLAPI void SetCameraMode(Camera camera, int mode); // Set camera mode (multiple camera modes available)
    RLAPI void UpdateCamera(Camera *camera);           // Update camera position for selected mode

    RLAPI void SetCameraPanControl(int panKey);                                                                     // Set camera pan key to combine with mouse movement (free camera)
    RLAPI void SetCameraAltControl(int altKey);                                                                     // Set camera alt key to combine with mouse movement (free camera)
    RLAPI void SetCameraSmoothZoomControl(int szKey);                                                               // Set camera smooth zoom key to combine with mouse (free camera)
    RLAPI void SetCameraMoveControls(int frontKey, int backKey, int rightKey, int leftKey, int upKey, int downKey); // Set camera move controls (1st person and 3rd person cameras)

    //------------------------------------------------------------------------------------
    // Basic Shapes Drawing Functions (Module: shapes)
    //------------------------------------------------------------------------------------

    // Basic shapes drawing functions
    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 DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color);                                                       // Draw a line defining thickness
    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 numPoints, 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, int startAngle, int endAngle, int segments, Color color);                      // Draw a piece of a circle
    RLAPI void DrawCircleSectorLines(Vector2 center, float radius, int startAngle, int 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 DrawRing(Vector2 center, float innerRadius, float outerRadius, int startAngle, int endAngle, int segments, Color color);      // Draw ring
    RLAPI void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, int startAngle, int endAngle, int segments, Color color); // Draw ring outline
    RLAPI void DrawRectangle(int posX, int posY, int width, int height, Color color);                                                        // Draw a color-filled rectangle
    RLAPI void DrawRectangleV(Vector2 position, Vector2 size, Color color);                                                                  // Draw a color-filled rectangle (Vector version)
    RLAPI void DrawRectangleRec(Rectangle rec, Color color);                                                                                 // Draw a color-filled rectangle
    RLAPI void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color);                                                 // Draw a color-filled rectangle with pro parameters
    RLAPI void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2);                                // Draw a vertical-gradient-filled rectangle
    RLAPI void DrawRectangleGradientH(int posX, int posY, int width, int height, Color color1, Color color2);                                // Draw a horizontal-gradient-filled rectangle
    RLAPI void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4);                                       // Draw a gradient-filled rectangle with custom vertex colors
    RLAPI void DrawRectangleLines(int posX, int posY, int width, int height, Color color);                                                   // Draw rectangle outline
    RLAPI void DrawRectangleLinesEx(Rectangle rec, int lineThick, Color color);                                                              // Draw rectangle outline with extended parameters
    RLAPI void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color color);                                              // Draw rectangle with rounded edges
    RLAPI void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, int lineThick, Color color);                          // Draw rectangle with rounded edges outline
    RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                                                                // Draw a color-filled triangle
    RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                                                           // Draw triangle outline
    RLAPI void DrawTriangleFan(Vector2 *points, int numPoints, Color color);                                                                 // Draw a triangle fan defined by points
    RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color);                                               // Draw a regular polygon (Vector version)

    RLAPI void SetShapesTexture(Texture2D texture, Rectangle source); // Define default texture used to draw shapes

    // 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
    RLAPI bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec);                  // Check collision between circle and rectangle
    RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2);                                  // Get collision rectangle for two rectangles collision
    RLAPI bool CheckCollisionPointRec(Vector2 point, Rectangle rec);                                  // Check if point is inside rectangle
    RLAPI bool CheckCollisionPointCircle(Vector2 point, Vector2 center, float radius);                // Check if point is inside circle
    RLAPI bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2 p3);        // Check if point is inside a triangle

    //------------------------------------------------------------------------------------
    // Texture Loading and Drawing Functions (Module: textures)
    //------------------------------------------------------------------------------------

    // Image/Texture2D data loading/unloading/saving functions
    RLAPI Image LoadImage(const char *fileName);                                                       // Load image from file into CPU memory (RAM)
    RLAPI Image LoadImageEx(Color *pixels, int width, int height);                                     // Load image from Color array data (RGBA - 32bit)
    RLAPI Image LoadImagePro(void *data, int width, int height, int format);                           // Load image from raw data with parameters
    RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize); // Load image from RAW file data
    RLAPI void ExportImage(Image image, const char *fileName);                                         // Export image data to file
    RLAPI void ExportImageAsCode(Image image, const char *fileName);                                   // Export image as code file defining an array of bytes
    RLAPI Texture2D LoadTexture(const char *fileName);                                                 // Load texture from file into GPU memory (VRAM)
    RLAPI Texture2D LoadTextureFromImage(Image image);                                                 // Load texture from image data
    RLAPI TextureCubemap LoadTextureCubemap(Image image, int layoutType);                              // Load cubemap from image, multiple image cubemap layouts supported
    RLAPI RenderTexture2D LoadRenderTexture(int width, int height);                                    // Load texture for rendering (framebuffer)
    RLAPI void UnloadImage(Image image);                                                               // Unload image from CPU memory (RAM)
    RLAPI void UnloadTexture(Texture2D texture);                                                       // Unload texture from GPU memory (VRAM)
    RLAPI void UnloadRenderTexture(RenderTexture2D target);                                            // Unload render texture from GPU memory (VRAM)
    RLAPI Color *GetImageData(Image image);                                                            // Get pixel data from image as a Color struct array
    RLAPI Vector4 *GetImageDataNormalized(Image image);                                                // Get pixel data from image as Vector4 array (float normalized)
    RLAPI int GetPixelDataSize(int width, int height, int format);                                     // Get pixel data size in bytes (image or texture)
    RLAPI Image GetTextureData(Texture2D texture);                                                     // Get pixel data from GPU texture and return an Image
    RLAPI Image GetScreenData(void);                                                                   // Get pixel data from screen buffer and return an Image (screenshot)
    RLAPI void UpdateTexture(Texture2D texture, const void *pixels);                                   // Update GPU texture with new data

    // Image manipulation functions
    RLAPI Image ImageCopy(Image image);                                                                                                // Create an image duplicate (useful for transformations)
    RLAPI void ImageToPOT(Image *image, Color fillColor);                                                                              // Convert image to POT (power-of-two)
    RLAPI void ImageFormat(Image *image, int newFormat);                                                                               // Convert image data to desired format
    RLAPI void ImageAlphaMask(Image *image, Image alphaMask);                                                                          // Apply alpha mask to image
    RLAPI void ImageAlphaClear(Image *image, Color color, float threshold);                                                            // Clear alpha channel to desired color
    RLAPI void ImageAlphaCrop(Image *image, float threshold);                                                                          // Crop image depending on alpha value
    RLAPI void ImageAlphaPremultiply(Image *image);                                                                                    // Premultiply alpha channel
    RLAPI void ImageCrop(Image *image, Rectangle crop);                                                                                // Crop an image to a defined rectangle
    RLAPI void ImageResize(Image *image, int newWidth, int newHeight);                                                                 // Resize image (Bicubic scaling algorithm)
    RLAPI void ImageResizeNN(Image *image, int newWidth, int newHeight);                                                               // Resize image (Nearest-Neighbor scaling algorithm)
    RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color color);                    // Resize canvas and fill with color
    RLAPI void ImageMipmaps(Image *image);                                                                                             // Generate all mipmap levels for a provided 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 Color *ImageExtractPalette(Image image, int maxPaletteSize, int *extractCount);                                              // Extract color palette from image to maximum size (memory should be freed)
    RLAPI Image ImageText(const char *text, int fontSize, Color color);                                                                // Create an image from text (default font)
    RLAPI Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint);                                   // Create an image from text (custom sprite font)
    RLAPI void ImageDraw(Image *dst, Image src, Rectangle srcRec, Rectangle dstRec);                                                   // Draw a source image within a destination image
    RLAPI void ImageDrawRectangle(Image *dst, Rectangle rec, Color color);                                                             // Draw rectangle within an image
    RLAPI void ImageDrawRectangleLines(Image *dst, Rectangle rec, int thick, Color color);                                             // Draw rectangle lines within an image
    RLAPI void ImageDrawText(Image *dst, Vector2 position, const char *text, int fontSize, Color color);                               // Draw text (default font) within an image (destination)
    RLAPI void ImageDrawTextEx(Image *dst, Vector2 position, Font font, const char *text, float fontSize, float spacing, Color color); // Draw text (custom sprite font) within an image (destination)
    RLAPI void ImageFlipVertical(Image *image);                                                                                        // Flip image vertically
    RLAPI void ImageFlipHorizontal(Image *image);                                                                                      // Flip image horizontally
    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
    RLAPI void ImageColorInvert(Image *image);                                                                                         // Modify image color: invert
    RLAPI void ImageColorGrayscale(Image *image);                                                                                      // Modify image color: grayscale
    RLAPI void ImageColorContrast(Image *image, float contrast);                                                                       // Modify image color: contrast (-100 to 100)
    RLAPI void ImageColorBrightness(Image *image, int brightness);                                                                     // Modify image color: brightness (-255 to 255)
    RLAPI void ImageColorReplace(Image *image, Color color, Color replace);                                                            // Modify image color: replace color

    // 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 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 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
    RLAPI Image GenImageCellular(int width, int height, int tileSize);                                    // Generate image: cellular algorithm. Bigger tileSize means bigger cells

    // Texture2D configuration functions
    RLAPI void GenTextureMipmaps(Texture2D *texture);               // Generate GPU mipmaps for a texture
    RLAPI void SetTextureFilter(Texture2D texture, int filterMode); // Set texture scaling filter mode
    RLAPI void SetTextureWrap(Texture2D texture, int wrapMode);     // Set texture wrapping mode

    // Texture2D drawing functions
    RLAPI void DrawTexture(Texture2D texture, int posX, int posY, Color tint);                                                             // Draw a Texture2D
    RLAPI void DrawTextureV(Texture2D texture, Vector2 position, Color tint);                                                              // Draw a Texture2D with position defined as Vector2
    RLAPI void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint);                                // Draw a Texture2D with extended parameters
    RLAPI void DrawTextureRec(Texture2D texture, Rectangle sourceRec, Vector2 position, Color tint);                                       // Draw a part of a texture defined by a rectangle
    RLAPI void DrawTextureQuad(Texture2D texture, Vector2 tiling, Vector2 offset, Rectangle quad, Color tint);                             // Draw texture quad with tiling and offset parameters
    RLAPI void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle destRec, Vector2 origin, float rotation, Color tint);      // Draw a part of a texture defined by a rectangle with 'pro' parameters
    RLAPI void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle destRec, Vector2 origin, float rotation, Color tint); // Draws a texture (or part of it) that stretches or shrinks nicely

    //------------------------------------------------------------------------------------
    // Font Loading and Text Drawing Functions (Module: text)
    //------------------------------------------------------------------------------------

    // 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 charsCount);                  // Load font from file with extended parameters
    RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar);                                        // Load font from Image (XNA style)
    RLAPI CharInfo *LoadFontData(const char *fileName, int fontSize, int *fontChars, int charsCount, int type); // Load font data for further use
    RLAPI Image GenImageFontAtlas(CharInfo *chars, int charsCount, int fontSize, int padding, int packMethod);  // Generate image font atlas using chars info
    RLAPI void UnloadFont(Font font);                                                                           // Unload Font from GPU memory (VRAM)

    // Text drawing functions
    RLAPI void DrawFPS(int posX, int posY);                                                                                       // Shows current FPS
    RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color color);                                         // Draw text (using default font)
    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 DrawTextRec(Font font, const char *text, Rectangle rec, float fontSize, float spacing, bool wordWrap, Color tint); // Draw text using font inside rectangle limits
    RLAPI void DrawTextRecEx(Font font, const char *text, Rectangle rec, float fontSize, float spacing, bool wordWrap, Color tint,
                             int selectStart, int selectLength, Color selectText, Color selectBack); // Draw text using font inside rectangle limits with support for text selection

    // Text misc. functions
    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 character);                                       // Get index position for a unicode character on font
    RLAPI int GetNextCodepoint(const char *text, int *count);                                // Returns next codepoint in a UTF8 encoded string
                                                                                             // NOTE: 0x3f(`?`) is returned on failure, `count` will hold the total number of bytes processed

    // Text strings management functions
    // NOTE: Some strings allocate memory internally for returned strings, just be careful!
    RLAPI bool TextIsEqual(const char *text1, const char *text2);                        // Check if two text string are equal
    RLAPI unsigned int TextLength(const char *text);                                     // Get text length, checks for '\0' ending
    RLAPI unsigned int TextCountCodepoints(const char *text);                            // Get total number of characters (codepoints) in a UTF8 encoded string
    RLAPI const char *TextFormat(const char *text, ...);                                 // Text formatting with variables (sprintf style)
    RLAPI const char *TextSubtext(const char *text, int position, int length);           // Get a piece of a text string
    RLAPI const char *TextReplace(char *text, const char *replace, const char *by);      // Replace text string (memory should be freed!)
    RLAPI const char *TextInsert(const char *text, const char *insert, int position);    // Insert text in a position (memory should be freed!)
    RLAPI const char *TextJoin(const char **textList, int count, const char *delimiter); // Join text strings with delimiter
    RLAPI const char **TextSplit(const char *text, char delimiter, int *count);          // Split text into multiple strings
    RLAPI void TextAppend(char *text, const char *append, int *position);                // Append text at specific position and move cursor!
    RLAPI int TextFindIndex(const char *text, const char *find);                         // Find first text occurrence within a string
    RLAPI const char *TextToUpper(const char *text);                                     // Get upper case version of provided string
    RLAPI const char *TextToLower(const char *text);                                     // Get lower case version of provided string
    RLAPI const char *TextToPascal(const char *text);                                    // Get Pascal case notation version of provided string
    RLAPI int TextToInteger(const char *text);                                           // Get integer value from text (negative values not supported)

    //------------------------------------------------------------------------------------
    // Basic 3d Shapes Drawing Functions (Module: models)
    //------------------------------------------------------------------------------------

    // Basic geometric 3D shapes drawing functions
    RLAPI void DrawLine3D(Vector3 startPos, Vector3 endPos, Color color);                                                       // Draw a line in 3D world space
    RLAPI void DrawCircle3D(Vector3 center, float radius, Vector3 rotationAxis, float rotationAngle, Color color);              // Draw a circle in 3D world space
    RLAPI void DrawCube(Vector3 position, float width, float height, float length, Color color);                                // Draw cube
    RLAPI void DrawCubeV(Vector3 position, Vector3 size, Color color);                                                          // Draw cube (Vector version)
    RLAPI void DrawCubeWires(Vector3 position, float width, float height, float length, Color color);                           // Draw cube wires
    RLAPI void DrawCubeWiresV(Vector3 position, Vector3 size, Color color);                                                     // Draw cube wires (Vector version)
    RLAPI void DrawCubeTexture(Texture2D texture, Vector3 position, float width, float height, float length, Color color);      // Draw cube textured
    RLAPI void DrawSphere(Vector3 centerPos, float radius, Color color);                                                        // Draw sphere
    RLAPI void DrawSphereEx(Vector3 centerPos, float radius, int rings, int slices, Color color);                               // Draw sphere with extended parameters
    RLAPI void DrawSphereWires(Vector3 centerPos, float radius, int rings, int slices, Color color);                            // Draw sphere wires
    RLAPI void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color);      // Draw a cylinder/cone
    RLAPI void DrawCylinderWires(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone wires
    RLAPI void DrawPlane(Vector3 centerPos, Vector2 size, Color color);                                                         // Draw a plane XZ
    RLAPI void DrawRay(Ray ray, Color color);                                                                                   // Draw a ray line
    RLAPI void DrawGrid(int slices, float spacing);                                                                             // Draw a grid (centered at (0, 0, 0))
    RLAPI void DrawGizmo(Vector3 position);                                                                                     // Draw simple gizmo
    //DrawTorus(), DrawTeapot() could be useful?

    //------------------------------------------------------------------------------------
    // Model 3d Loading and Drawing Functions (Module: models)
    //------------------------------------------------------------------------------------

    // Model loading/unloading functions
    RLAPI Model LoadModel(const char *fileName); // Load model from files (meshes and materials)
    RLAPI Model LoadModelFromMesh(Mesh mesh);    // Load model from generated mesh (default material)
    RLAPI void UnloadModel(Model model);         // Unload model from memory (RAM and/or VRAM)

    // Mesh loading/unloading functions
    RLAPI Mesh *LoadMeshes(const char *fileName, int *meshCount); // Load meshes from model file
    RLAPI void ExportMesh(Mesh mesh, const char *fileName);       // Export mesh data to file
    RLAPI void UnloadMesh(Mesh *mesh);                            // Unload mesh from memory (RAM and/or VRAM)

    // Material loading/unloading functions
    RLAPI Material *LoadMaterials(const char *fileName, int *materialCount);           // Load materials from model file
    RLAPI Material LoadMaterialDefault(void);                                          // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
    RLAPI void UnloadMaterial(Material material);                                      // Unload material from GPU memory (VRAM)
    RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture); // Set texture for a material map type (MAP_DIFFUSE, MAP_SPECULAR...)
    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, int *animsCount); // 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 bool IsModelAnimationValid(Model model, ModelAnimation anim);               // Check model animation skeleton match

    // Mesh generation functions
    RLAPI Mesh GenMeshPoly(int sides, float radius);                          // Generate polygonal mesh
    RLAPI Mesh GenMeshPlane(float width, float length, int resX, int resZ);   // Generate plane mesh (with subdivisions)
    RLAPI Mesh GenMeshCube(float width, float height, float length);          // Generate cuboid mesh
    RLAPI Mesh GenMeshSphere(float radius, int rings, int slices);            // Generate sphere mesh (standard sphere)
    RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices);        // Generate half-sphere mesh (no bottom cap)
    RLAPI Mesh GenMeshCylinder(float radius, float height, int slices);       // Generate cylinder mesh
    RLAPI Mesh GenMeshTorus(float radius, float size, int radSeg, int sides); // Generate torus mesh
    RLAPI Mesh GenMeshKnot(float radius, float size, int radSeg, int sides);  // Generate trefoil knot mesh
    RLAPI Mesh GenMeshHeightmap(Image heightmap, Vector3 size);               // Generate heightmap mesh from image data
    RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize);             // Generate cubes-based map mesh from image data

    // Mesh manipulation functions
    RLAPI BoundingBox MeshBoundingBox(Mesh mesh); // Compute mesh bounding box limits
    RLAPI void MeshTangents(Mesh *mesh);          // Compute mesh tangents
    RLAPI void MeshBinormals(Mesh *mesh);         // Compute mesh binormals

    // Model drawing functions
    RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint);                                                     // Draw a model (with texture if set)
    RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint);      // Draw a model with extended parameters
    RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint);                                                // Draw a model wires (with texture if set)
    RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters
    RLAPI void DrawBoundingBox(BoundingBox box, Color color);                                                                         // Draw bounding box (wires)
    RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 center, float size, Color tint);                               // Draw a billboard texture
    RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle sourceRec, Vector3 center, float size, Color tint);       // Draw a billboard texture defined by sourceRec

    // Collision detection functions
    RLAPI bool CheckCollisionSpheres(Vector3 centerA, float radiusA, Vector3 centerB, float radiusB);                   // Detect collision between two spheres
    RLAPI bool CheckCollisionBoxes(BoundingBox box1, BoundingBox box2);                                                 // Detect collision between two bounding boxes
    RLAPI bool CheckCollisionBoxSphere(BoundingBox box, Vector3 centerSphere, float radiusSphere);                      // Detect collision between box and sphere
    RLAPI bool CheckCollisionRaySphere(Ray ray, Vector3 spherePosition, float sphereRadius);                            // Detect collision between ray and sphere
    RLAPI bool CheckCollisionRaySphereEx(Ray ray, Vector3 spherePosition, float sphereRadius, Vector3 *collisionPoint); // Detect collision between ray and sphere, returns collision point
    RLAPI bool CheckCollisionRayBox(Ray ray, BoundingBox box);                                                          // Detect collision between ray and box
    RLAPI RayHitInfo GetCollisionRayModel(Ray ray, Model *model);                                                       // Get collision info between ray and model
    RLAPI RayHitInfo GetCollisionRayTriangle(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3);                              // Get collision info between ray and triangle
    RLAPI RayHitInfo GetCollisionRayGround(Ray ray, float groundHeight);                                                // Get collision info between ray and ground plane (Y-normal plane)

    //------------------------------------------------------------------------------------
    // Shaders System Functions (Module: rlgl)
    // NOTE: This functions are useless when using OpenGL 1.1
    //------------------------------------------------------------------------------------

    // Shader loading/unloading functions
    RLAPI char *LoadText(const char *fileName);                              // Load chars array from text file
    RLAPI Shader LoadShader(const char *vsFileName, const char *fsFileName); // Load shader from files and bind default locations
    RLAPI Shader LoadShaderCode(char *vsCode, char *fsCode);                 // Load shader from code strings and bind default locations
    RLAPI void UnloadShader(Shader shader);                                  // Unload shader from GPU memory (VRAM)

    RLAPI Shader GetShaderDefault(void);     // Get default shader
    RLAPI Texture2D GetTextureDefault(void); // Get default texture

    // Shader configuration functions
    RLAPI int GetShaderLocation(Shader shader, const char *uniformName);                                      // Get shader uniform location
    RLAPI void SetShaderValue(Shader shader, int uniformLoc, const void *value, int uniformType);             // Set shader uniform value
    RLAPI void SetShaderValueV(Shader shader, int uniformLoc, const void *value, int uniformType, int count); // Set shader uniform value vector
    RLAPI void SetShaderValueMatrix(Shader shader, int uniformLoc, Matrix mat);                               // Set shader uniform value (matrix 4x4)
    RLAPI void SetShaderValueTexture(Shader shader, int uniformLoc, Texture2D texture);                       // Set shader uniform value for texture
    RLAPI void SetMatrixProjection(Matrix proj);                                                              // Set a custom projection matrix (replaces internal projection matrix)
    RLAPI void SetMatrixModelview(Matrix view);                                                               // Set a custom modelview matrix (replaces internal modelview matrix)
    RLAPI Matrix GetMatrixModelview();                                                                        // Get internal modelview matrix

    // Texture maps generation (PBR)
    // NOTE: Required shaders should be provided
    RLAPI Texture2D GenTextureCubemap(Shader shader, Texture2D skyHDR, int size);     // Generate cubemap texture from HDR texture
    RLAPI Texture2D GenTextureIrradiance(Shader shader, Texture2D cubemap, int size); // Generate irradiance texture using cubemap data
    RLAPI Texture2D GenTexturePrefilter(Shader shader, Texture2D cubemap, int size);  // Generate prefilter texture using cubemap data
    RLAPI Texture2D GenTextureBRDF(Shader shader, int size);                          // Generate BRDF texture

    // Shading begin/end functions
    RLAPI void BeginShaderMode(Shader shader);                        // Begin custom shader drawing
    RLAPI void EndShaderMode(void);                                   // End custom shader drawing (use default shader)
    RLAPI void BeginBlendMode(int mode);                              // Begin blending mode (alpha, additive, multiplied)
    RLAPI void EndBlendMode(void);                                    // End blending mode (reset to default: alpha blending)
    RLAPI void BeginScissorMode(int x, int y, int width, int height); // Begin scissor mode (define screen area for following drawing)
    RLAPI void EndScissorMode(void);                                  // End scissor mode

    // VR control functions
    RLAPI void InitVrSimulator(void);                                    // Init VR simulator for selected device parameters
    RLAPI void CloseVrSimulator(void);                                   // Close VR simulator for current device
    RLAPI void UpdateVrTracking(Camera *camera);                         // Update VR tracking (position and orientation) and camera
    RLAPI void SetVrConfiguration(VrDeviceInfo info, Shader distortion); // Set stereo rendering configuration parameters
    RLAPI bool IsVrSimulatorReady(void);                                 // Detect if VR simulator is ready
    RLAPI void ToggleVrMode(void);                                       // Enable/Disable VR experience
    RLAPI void BeginVrDrawing(void);                                     // Begin VR simulator stereo rendering
    RLAPI void EndVrDrawing(void);                                       // End VR simulator stereo rendering

    //------------------------------------------------------------------------------------
    // Audio Loading and Playing Functions (Module: audio)
    //------------------------------------------------------------------------------------

    // Audio device management functions
    RLAPI void InitAudioDevice(void);         // Initialize audio device and context
    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)

    // Wave/Sound loading/unloading functions
    RLAPI Wave LoadWave(const char *fileName);                                                        // Load wave data from file
    RLAPI Wave LoadWaveEx(void *data, int sampleCount, int sampleRate, int sampleSize, int channels); // Load wave data from raw array data
    RLAPI Sound LoadSound(const char *fileName);                                                      // Load sound from file
    RLAPI Sound LoadSoundFromWave(Wave wave);                                                         // Load sound from wave data
    RLAPI void UpdateSound(Sound sound, const void *data, int samplesCount);                          // Update sound buffer with new data
    RLAPI void UnloadWave(Wave wave);                                                                 // Unload wave data
    RLAPI void UnloadSound(Sound sound);                                                              // Unload sound
    RLAPI void ExportWave(Wave wave, const char *fileName);                                           // Export wave data to file
    RLAPI void ExportWaveAsCode(Wave wave, const char *fileName);                                     // Export wave sample data to code (.h)

    // Wave/Sound management functions
    RLAPI void PlaySound(Sound sound);                                               // Play a sound
    RLAPI void PauseSound(Sound sound);                                              // Pause a sound
    RLAPI void ResumeSound(Sound sound);                                             // Resume a paused sound
    RLAPI void StopSound(Sound sound);                                               // Stop playing a sound
    RLAPI bool IsSoundPlaying(Sound sound);                                          // Check if a sound is currently playing
    RLAPI void SetSoundVolume(Sound sound, float volume);                            // Set volume for a sound (1.0 is max level)
    RLAPI void SetSoundPitch(Sound sound, float pitch);                              // Set pitch for a sound (1.0 is base level)
    RLAPI void WaveFormat(Wave *wave, int sampleRate, int sampleSize, int channels); // Convert wave data to desired format
    RLAPI Wave WaveCopy(Wave wave);                                                  // Copy a wave to a new wave
    RLAPI void WaveCrop(Wave *wave, int initSample, int finalSample);                // Crop a wave to defined samples range
    RLAPI float *GetWaveData(Wave wave);                                             // Get samples data from wave as a floats array

    // Music management functions
    RLAPI Music LoadMusicStream(const char *fileName);    // Load music stream from file
    RLAPI void UnloadMusicStream(Music music);            // Unload music stream
    RLAPI void PlayMusicStream(Music music);              // Start music playing
    RLAPI void UpdateMusicStream(Music music);            // Updates buffers for music streaming
    RLAPI void StopMusicStream(Music music);              // Stop music playing
    RLAPI void PauseMusicStream(Music music);             // Pause music playing
    RLAPI void ResumeMusicStream(Music music);            // Resume playing paused music
    RLAPI bool IsMusicPlaying(Music music);               // Check if music is playing
    RLAPI void SetMusicVolume(Music music, float volume); // Set volume for music (1.0 is max level)
    RLAPI void SetMusicPitch(Music music, float pitch);   // Set pitch for a music (1.0 is base level)
    RLAPI void SetMusicLoopCount(Music music, int count); // Set music loop count (loop repeats)
    RLAPI float GetMusicTimeLength(Music music);          // Get music time length (in seconds)
    RLAPI float GetMusicTimePlayed(Music music);          // Get current music time played (in seconds)

    // AudioStream management functions
    RLAPI AudioStream InitAudioStream(unsigned int sampleRate, unsigned int sampleSize, unsigned int channels); // Init audio stream (to stream raw audio pcm data)
    RLAPI void UpdateAudioStream(AudioStream stream, const void *data, int samplesCount);                       // Update audio stream buffers with data
    RLAPI void CloseAudioStream(AudioStream stream);                                                            // Close audio stream and free memory
    RLAPI bool IsAudioBufferProcessed(AudioStream stream);                                                      // Check if any audio stream buffers requires refill
    RLAPI void PlayAudioStream(AudioStream stream);                                                             // Play audio stream
    RLAPI void PauseAudioStream(AudioStream stream);                                                            // Pause audio stream
    RLAPI void ResumeAudioStream(AudioStream stream);                                                           // Resume audio stream
    RLAPI bool IsAudioStreamPlaying(AudioStream stream);                                                        // Check if audio stream is playing
    RLAPI void StopAudioStream(AudioStream stream);                                                             // Stop audio stream
    RLAPI void SetAudioStreamVolume(AudioStream stream, float volume);                                          // Set volume for audio stream (1.0 is max level)
    RLAPI void SetAudioStreamPitch(AudioStream stream, float pitch);                                            // Set pitch for audio stream (1.0 is base level)

    //------------------------------------------------------------------------------------
    // Network (Module: network)
    //------------------------------------------------------------------------------------

    // IN PROGRESS: Check rnet.h for reference

#if defined(__cplusplus)
}
#endif

#endif // RAYLIB_H