diff options
Diffstat (limited to 'src/core.c')
| -rw-r--r-- | src/core.c | 659 |
1 files changed, 445 insertions, 214 deletions
@@ -2,7 +2,13 @@ * * raylib.core - Basic functions to manage windows, OpenGL context and input on multiple platforms * -* The following platforms are supported: Windows, Linux, Mac (OSX), Android, Raspberry Pi, HTML5, Oculus Rift CV1 +* PLATFORMS SUPPORTED: +* - Windows (win32/Win64) +* - Linux (tested on Ubuntu) +* - OSX (Mac) +* - Android (ARM or ARM64) +* - Raspberry Pi (Raspbian) +* - HTML5 (Chrome, Firefox) * * CONFIGURATION: * @@ -22,17 +28,25 @@ * Windowing and input system configured for HTML5 (run on browser), code converted from C to asm.js * using emscripten compiler. OpenGL ES 2.0 required for direct translation to WebGL equivalent code. * -* #define LOAD_DEFAULT_FONT (defined by default) +* #define SUPPORT_DEFAULT_FONT (default) * Default font is loaded on window initialization to be available for the user to render simple text. * NOTE: If enabled, uses external module functions to load default raylib font (module: text) * -* #define INCLUDE_CAMERA_SYSTEM / SUPPORT_CAMERA_SYSTEM +* #define SUPPORT_CAMERA_SYSTEM +* Camera module is included (camera.h) and multiple predefined cameras are available: free, 1st/3rd person, orbital * -* #define INCLUDE_GESTURES_SYSTEM / SUPPORT_GESTURES_SYSTEM +* #define SUPPORT_GESTURES_SYSTEM +* Gestures module is included (gestures.h) to support gestures detection: tap, hold, swipe, drag * * #define SUPPORT_MOUSE_GESTURES * Mouse gestures are directly mapped like touches and processed by gestures system. * +* #define SUPPORT_BUSY_WAIT_LOOP +* Use busy wait loop for timming sync, if not defined, a high-resolution timer is setup and used +* +* #define SUPPORT_GIF_RECORDING +* Allow automatic gif recording of current screen pressing CTRL+F12, defined in KeyCallback() +* * DEPENDENCIES: * GLFW3 - Manage graphic device, OpenGL context and inputs on PLATFORM_DESKTOP (Windows, Linux, OSX) * raymath - 3D math functionality (Vector3, Matrix, Quaternion) @@ -42,7 +56,7 @@ * * LICENSE: zlib/libpng * -* Copyright (c) 2014-2016 Ramon Santamaria (@raysan5) +* Copyright (c) 2014-2017 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. @@ -61,21 +75,38 @@ * **********************************************************************************************/ +// Default configuration flags (supported features) +//------------------------------------------------- +#define SUPPORT_DEFAULT_FONT +#define SUPPORT_MOUSE_GESTURES +#define SUPPORT_CAMERA_SYSTEM +#define SUPPORT_GESTURES_SYSTEM +#define SUPPORT_BUSY_WAIT_LOOP +#define SUPPORT_GIF_RECORDING +//------------------------------------------------- + #include "raylib.h" #include "rlgl.h" // raylib OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2 -#include "utils.h" // Required for: fopen() Android mapping, TraceLog() +#include "utils.h" // Required for: fopen() Android mapping #define RAYMATH_IMPLEMENTATION // Use raymath as a header-only library (includes implementation) #define RAYMATH_EXTERN_INLINE // Compile raymath functions as static inline (remember, it's a compiler hint) #include "raymath.h" // Required for: Vector3 and Matrix functions -#define GESTURES_IMPLEMENTATION -#include "gestures.h" // Gestures detection functionality +#if defined(SUPPORT_GESTURES_SYSTEM) + #define GESTURES_IMPLEMENTATION + #include "gestures.h" // Gestures detection functionality +#endif -#if !defined(PLATFORM_ANDROID) +#if defined(SUPPORT_CAMERA_SYSTEM) && !defined(PLATFORM_ANDROID) #define CAMERA_IMPLEMENTATION - #include "camera.h" // Camera system functionality + #include "camera.h" // Camera system functionality +#endif + +#if defined(SUPPORT_GIF_RECORDING) + #define GIF_IMPLEMENTATION + #include "external/gif.h" // Support GIF recording #endif #include <stdio.h> // Standard input / output lib @@ -83,12 +114,22 @@ #include <stdint.h> // Required for: typedef unsigned long long int uint64_t, used by hi-res timer #include <time.h> // Required for: time() - Android/RPI hi-res timer (NOTE: Linux only!) #include <math.h> // Required for: tan() [Used in Begin3dMode() to set perspective] -#include <string.h> // Required for: strcmp() +#include <string.h> // Required for: strrchr(), strcmp() //#include <errno.h> // Macros for reporting and retrieving error conditions through error codes -#if defined __linux || defined(PLATFORM_WEB) +#ifdef _WIN32 + #include <direct.h> // Required for: _getch(), _chdir() + #define GETCWD _getcwd // NOTE: MSDN recommends not to use getcwd(), chdir() + #define CHDIR _chdir +#else + #include "unistd.h" // Required for: getch(), chdir() (POSIX) + #define GETCWD getcwd + #define CHDIR chdir +#endif + +#if defined(__linux__) || defined(PLATFORM_WEB) #include <sys/time.h> // Required for: timespec, nanosleep(), select() - POSIX -#elif defined __APPLE__ +#elif defined(__APPLE__) #include <unistd.h> // Required for: usleep() #endif @@ -96,13 +137,19 @@ //#define GLFW_INCLUDE_NONE // Disable the standard OpenGL header inclusion on GLFW3 #include <GLFW/glfw3.h> // GLFW3 library: Windows, OpenGL context and Input management - #ifdef __linux + #if defined(__linux__) #define GLFW_EXPOSE_NATIVE_X11 // Linux specific definitions for getting #define GLFW_EXPOSE_NATIVE_GLX // native functions like glfwGetX11Window #include <GLFW/glfw3native.h> // which are required for hiding mouse #endif //#include <GL/gl.h> // OpenGL functions (GLFW3 already includes gl.h) //#define GLFW_DLL // Using GLFW DLL on Windows -> No, we use static version! + + #if !defined(SUPPORT_BUSY_WAIT_LOOP) && defined(_WIN32) + // NOTE: Those functions require linking with winmm library + __stdcall unsigned int timeBeginPeriod(unsigned int uPeriod); + __stdcall unsigned int timeEndPeriod(unsigned int uPeriod); + #endif #endif #if defined(PLATFORM_ANDROID) @@ -140,8 +187,6 @@ //---------------------------------------------------------------------------------- // Defines and Macros //---------------------------------------------------------------------------------- -#define STORAGE_FILENAME "storage.data" - #if defined(PLATFORM_RPI) // Old device inputs system #define DEFAULT_KEYBOARD_DEV STDIN_FILENO // Standard input @@ -161,7 +206,7 @@ #define MAX_GAMEPAD_BUTTONS 32 // Max bumber of buttons supported (per gamepad) #define MAX_GAMEPAD_AXIS 8 // Max number of axis supported (per gamepad) -#define LOAD_DEFAULT_FONT // Load default font on window initialization (module: text) +#define STORAGE_FILENAME "storage.data" //---------------------------------------------------------------------------------- // Types and Structures Definition @@ -233,6 +278,7 @@ static Matrix downscaleView; // Matrix to downscale view (in case static const char *windowTitle; // Window text title... static bool cursorOnScreen = false; // Tracks if cursor is inside client area static bool cursorHidden = false; // Track if cursor is hidden +static int screenshotCounter = 0; // Screenshots counter // Register mouse states static char previousMouseState[3] = { 0 }; // Registers previous mouse button state @@ -259,7 +305,14 @@ static int lastGamepadButtonPressed = -1; // Register last gamepad button pres static int gamepadAxisCount = 0; // Register number of available gamepad axis static Vector2 mousePosition; // Mouse position on screen + +#if defined(PLATFORM_WEB) +static bool toggleCursorLock = false; // Ask for cursor pointer lock on next click +#endif + +#if defined(SUPPORT_GESTURES_SYSTEM) static Vector2 touchPosition[MAX_TOUCH_POINTS]; // Touch position on screen +#endif #if defined(PLATFORM_DESKTOP) static char **dropFilesPath; // Store dropped files paths as strings @@ -274,10 +327,16 @@ static double targetTime = 0.0; // Desired time for one frame, if 0 static char configFlags = 0; // Configuration flags (bit based) static bool showLogo = false; // Track if showing logo at init is enabled +#if defined(SUPPORT_GIF_RECORDING) +static GifWriter gifWriter; +static int gifFramesCounter = 0; +static bool gifRecording = false; +#endif + //---------------------------------------------------------------------------------- // Other Modules Functions Declaration (required by core) //---------------------------------------------------------------------------------- -#if defined(LOAD_DEFAULT_FONT) +#if defined(SUPPORT_DEFAULT_FONT) extern void LoadDefaultFont(void); // [Module: text] Loads default font on InitWindow() extern void UnloadDefaultFont(void); // [Module: text] Unloads default font from GPU memory #endif @@ -296,9 +355,6 @@ static void PollInputEvents(void); // Register user events static void SwapBuffers(void); // Copy back buffer to front buffers static void LogoAnimation(void); // Plays raylib logo appearing animation static void SetupViewport(void); // Set viewport parameters -#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) -static void TakeScreenshot(void); // Takes a screenshot and saves it in the same folder as executable -#endif #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) static void ErrorCallback(int error, const char *description); // GLFW3 Error Callback, runs on GLFW3 error @@ -323,7 +379,9 @@ static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event) #if defined(PLATFORM_WEB) static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const EmscriptenFullscreenChangeEvent *e, void *userData); -static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData); +static EM_BOOL EmscriptenKeyboardCallback(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData); +static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); +static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData); static EM_BOOL EmscriptenGamepadCallback(int eventType, const EmscriptenGamepadEvent *gamepadEvent, void *userData); #endif @@ -348,7 +406,7 @@ static void *GamepadThread(void *arg); // Mouse reading thread // Module Functions Definition - Window and OpenGL Context Functions //---------------------------------------------------------------------------------- #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB) -// Initialize Window and Graphics Context (OpenGL) +// Initialize window and OpenGL context void InitWindow(int width, int height, const char *title) { TraceLog(INFO, "Initializing raylib (v1.7.0)"); @@ -359,7 +417,7 @@ void InitWindow(int width, int height, const char *title) // Init graphics device (display device and OpenGL context) InitGraphicsDevice(width, height); -#if defined(LOAD_DEFAULT_FONT) +#if defined(SUPPORT_DEFAULT_FONT) // Load default font // NOTE: External function (defined in module: text) LoadDefaultFont(); @@ -378,16 +436,22 @@ void InitWindow(int width, int height, const char *title) #if defined(PLATFORM_WEB) emscripten_set_fullscreenchange_callback(0, 0, 1, EmscriptenFullscreenChangeCallback); - - // NOTE: Some code examples + + // Support keyboard events + emscripten_set_keypress_callback("#canvas", NULL, 1, EmscriptenKeyboardCallback); + + // Support mouse events + emscripten_set_click_callback("#canvas", NULL, 1, EmscriptenMouseCallback); + + // Support touch events + emscripten_set_touchstart_callback("#canvas", NULL, 1, EmscriptenTouchCallback); + emscripten_set_touchend_callback("#canvas", NULL, 1, EmscriptenTouchCallback); + emscripten_set_touchmove_callback("#canvas", NULL, 1, EmscriptenTouchCallback); + emscripten_set_touchcancel_callback("#canvas", NULL, 1, EmscriptenTouchCallback); //emscripten_set_touchstart_callback(0, NULL, 1, Emscripten_HandleTouch); //emscripten_set_touchend_callback("#canvas", data, 0, Emscripten_HandleTouch); - emscripten_set_touchstart_callback("#canvas", NULL, 1, EmscriptenInputCallback); - emscripten_set_touchend_callback("#canvas", NULL, 1, EmscriptenInputCallback); - emscripten_set_touchmove_callback("#canvas", NULL, 1, EmscriptenInputCallback); - emscripten_set_touchcancel_callback("#canvas", NULL, 1, EmscriptenInputCallback); - // Support gamepad (not provided by GLFW3 on emscripten) + // Support gamepad events (not provided by GLFW3 on emscripten) emscripten_set_gamepadconnected_callback(NULL, 1, EmscriptenGamepadCallback); emscripten_set_gamepaddisconnected_callback(NULL, 1, EmscriptenGamepadCallback); #endif @@ -405,7 +469,7 @@ void InitWindow(int width, int height, const char *title) #endif #if defined(PLATFORM_ANDROID) -// Android activity initialization +// Initialize Android activity void InitWindow(int width, int height, void *state) { TraceLog(INFO, "Initializing raylib (v1.7.0)"); @@ -468,10 +532,18 @@ void InitWindow(int width, int height, void *state) } #endif -// Close Window and Terminate Context +// Close window and unload OpenGL context void CloseWindow(void) { -#if defined(LOAD_DEFAULT_FONT) +#if defined(SUPPORT_GIF_RECORDING) + if (gifRecording) + { + GifEnd(&gifWriter); + gifRecording = false; + } +#endif + +#if defined(SUPPORT_DEFAULT_FONT) UnloadDefaultFont(); #endif @@ -482,6 +554,10 @@ void CloseWindow(void) glfwTerminate(); #endif +#if !defined(SUPPORT_BUSY_WAIT_LOOP) && defined(_WIN32) + timeEndPeriod(1); // Restore time period +#endif + #if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) // Close surface, context and display if (display != EGL_NO_DISPLAY) @@ -520,7 +596,7 @@ void CloseWindow(void) TraceLog(INFO, "Window closed successfully"); } -// Detect if KEY_ESCAPE pressed or Close icon pressed +// Check if KEY_ESCAPE pressed or Close icon pressed bool WindowShouldClose(void) { #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) @@ -535,7 +611,7 @@ bool WindowShouldClose(void) #endif } -// Detect if window has been minimized (or lost focus) +// Check if window has been minimized (or lost focus) bool IsWindowMinimized(void) { #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) @@ -545,7 +621,7 @@ bool IsWindowMinimized(void) #endif } -// Fullscreen toggle (only PLATFORM_DESKTOP) +// Toggle fullscreen mode (only PLATFORM_DESKTOP) void ToggleFullscreen(void) { #if defined(PLATFORM_DESKTOP) @@ -583,12 +659,15 @@ void SetWindowIcon(Image image) // Set window position on screen (windowed mode) void SetWindowPosition(int x, int y) { +#if defined(PLATFORM_DESKTOP) glfwSetWindowPos(window, x, y); +#endif } // Set monitor for the current window (fullscreen mode) void SetWindowMonitor(int monitor) { +#if defined(PLATFORM_DESKTOP) int monitorCount; GLFWmonitor** monitors = glfwGetMonitors(&monitorCount); @@ -598,6 +677,16 @@ void SetWindowMonitor(int monitor) TraceLog(INFO, "Selected fullscreen monitor: [%i] %s", monitor, glfwGetMonitorName(monitors[monitor])); } else TraceLog(WARNING, "Selected monitor not found"); +#endif +} + +// Set window minimum dimensions (FLAG_WINDOW_RESIZABLE) +void SetWindowMinSize(int width, int height) +{ +#if defined(PLATFORM_DESKTOP) + const GLFWvidmode *mode = glfwGetVideoMode(glfwGetPrimaryMonitor()); + glfwSetWindowSizeLimits(window, width, height, mode->width, mode->height); +#endif } // Get current screen width @@ -617,7 +706,7 @@ int GetScreenHeight(void) void ShowCursor() { #if defined(PLATFORM_DESKTOP) - #ifdef __linux + #if defined(__linux__) XUndefineCursor(glfwGetX11Display(), glfwGetX11Window(window)); #else glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL); @@ -626,11 +715,11 @@ void ShowCursor() cursorHidden = false; } -// Hide mouse cursor +// Hides mouse cursor void HideCursor() { #if defined(PLATFORM_DESKTOP) - #ifdef __linux + #if defined(__linux__) XColor col; const char nil[] = {0}; @@ -646,39 +735,45 @@ void HideCursor() cursorHidden = true; } -// Check if mouse cursor is hidden +// Check if cursor is not visible bool IsCursorHidden() { return cursorHidden; } -// Enable mouse cursor +// Enables cursor (unlock cursor) void EnableCursor() { #if defined(PLATFORM_DESKTOP) glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL); #endif +#if defined(PLATFORM_WEB) + toggleCursorLock = true; +#endif cursorHidden = false; } -// Disable mouse cursor +// Disables cursor (lock cursor) void DisableCursor() { #if defined(PLATFORM_DESKTOP) glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED); #endif +#if defined(PLATFORM_WEB) + toggleCursorLock = true; +#endif cursorHidden = true; } #endif // !defined(PLATFORM_ANDROID) -// Sets Background Color +// Set background color (framebuffer clear color) void ClearBackground(Color color) { // Clear full framebuffer (not only render area) to color rlClearColor(color.r, color.g, color.b, color.a); } -// Setup drawing canvas to start drawing +// Setup canvas (framebuffer) to start drawing void BeginDrawing(void) { currentTime = GetTime(); // Number of elapsed seconds since InitTimer() was called @@ -693,11 +788,40 @@ void BeginDrawing(void) // NOTE: Not required with OpenGL 3.3+ } -// End canvas drawing and Swap Buffers (Double Buffering) +// End canvas drawing and swap buffers (double buffering) void EndDrawing(void) { rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2) +#if defined(SUPPORT_GIF_RECORDING) + + #define GIF_RECORD_FRAMERATE 10 + + if (gifRecording) + { + gifFramesCounter++; + + // NOTE: We record one gif frame every 10 game frames + if ((gifFramesCounter%GIF_RECORD_FRAMERATE) == 0) + { + // Get image data for the current frame (from backbuffer) + // NOTE: This process is very slow... :( + unsigned char *screenData = rlglReadScreenPixels(screenWidth, screenHeight); + GifWriteFrame(&gifWriter, screenData, screenWidth, screenHeight, 10, 8, false); + + free(screenData); // Free image data + } + + if (((gifFramesCounter/15)%2) == 1) + { + DrawCircle(30, screenHeight - 20, 10, RED); + DrawText("RECORDING", 50, screenHeight - 25, 10, MAROON); + } + + rlglDraw(); // Draw RECORDING message + } +#endif + SwapBuffers(); // Copy back buffer to front buffer PollInputEvents(); // Poll user events @@ -721,7 +845,7 @@ void EndDrawing(void) } } -// Initialize 2D mode with custom camera +// Initialize 2D mode with custom camera (2D) void Begin2dMode(Camera2D camera) { rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2) @@ -739,7 +863,7 @@ void Begin2dMode(Camera2D camera) rlMultMatrixf(MatrixToFloat(matTransform)); } -// Ends 2D mode custom camera usage +// Ends 2D mode with custom camera void End2dMode(void) { rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2) @@ -747,15 +871,12 @@ void End2dMode(void) rlLoadIdentity(); // Reset current matrix (MODELVIEW) } -// Initializes 3D mode for drawing (Camera setup) +// Initializes 3D mode with custom camera (3D) void Begin3dMode(Camera camera) { rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2) - - if (IsVrDeviceReady() || IsVrSimulator()) BeginVrDrawing(); - + rlMatrixMode(RL_PROJECTION); // Switch to projection matrix - rlPushMatrix(); // Save previous matrix, which contains the settings for the 2d ortho projection rlLoadIdentity(); // Reset current matrix (PROJECTION) @@ -782,8 +903,6 @@ void End3dMode(void) { rlglDraw(); // Process internal buffers (update + draw) - if (IsVrDeviceReady() || IsVrSimulator()) EndVrDrawing(); - rlMatrixMode(RL_PROJECTION); // Switch to projection matrix rlPopMatrix(); // Restore previous matrix (PROJECTION) from matrix stack @@ -841,7 +960,107 @@ void EndTextureMode(void) rlLoadIdentity(); // Reset current matrix (MODELVIEW) } -// Set target FPS for the game +// Returns a ray trace from mouse position +Ray GetMouseRay(Vector2 mousePosition, Camera camera) +{ + Ray ray; + + // Calculate normalized device coordinates + // NOTE: y value is negative + float x = (2.0f*mousePosition.x)/(float)GetScreenWidth() - 1.0f; + float y = 1.0f - (2.0f*mousePosition.y)/(float)GetScreenHeight(); + float z = 1.0f; + + // Store values in a vector + Vector3 deviceCoords = { x, y, z }; + + TraceLog(DEBUG, "Device coordinates: (%f, %f, %f)", deviceCoords.x, deviceCoords.y, deviceCoords.z); + + // Calculate projection matrix (from perspective instead of frustum) + Matrix matProj = MatrixPerspective(camera.fovy, ((double)GetScreenWidth()/(double)GetScreenHeight()), 0.01, 1000.0); + + // Calculate view matrix from camera look at + Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up); + + // Do I need to transpose it? It seems that yes... + // NOTE: matrix order may be incorrect... In OpenGL to get world position from + // camera view it just needs to get inverted, but here we need to transpose it too. + // For example, if you get view matrix, transpose and inverted and you transform it + // to a vector, you will get its 3d world position coordinates (camera.position). + // If you don't transpose, final position will be wrong. + MatrixTranspose(&matView); + +//#define USE_RLGL_UNPROJECT +#if defined(USE_RLGL_UNPROJECT) // OPTION 1: Use rlglUnproject() + + Vector3 nearPoint = rlglUnproject((Vector3){ deviceCoords.x, deviceCoords.y, 0.0f }, matProj, matView); + Vector3 farPoint = rlglUnproject((Vector3){ deviceCoords.x, deviceCoords.y, 1.0f }, matProj, matView); + +#else // OPTION 2: Compute unprojection directly here + + // Calculate unproject matrix (multiply projection matrix and view matrix) and invert it + Matrix matProjView = MatrixMultiply(matProj, matView); + MatrixInvert(&matProjView); + + // Calculate far and near points + Quaternion qNear = { deviceCoords.x, deviceCoords.y, 0.0f, 1.0f }; + Quaternion qFar = { deviceCoords.x, deviceCoords.y, 1.0f, 1.0f }; + + // Multiply points by unproject matrix + QuaternionTransform(&qNear, matProjView); + QuaternionTransform(&qFar, matProjView); + + // Calculate normalized world points in vectors + Vector3 nearPoint = { qNear.x/qNear.w, qNear.y/qNear.w, qNear.z/qNear.w}; + Vector3 farPoint = { qFar.x/qFar.w, qFar.y/qFar.w, qFar.z/qFar.w}; +#endif + + // Calculate normalized direction vector + Vector3 direction = VectorSubtract(farPoint, nearPoint); + VectorNormalize(&direction); + + // Apply calculated vectors to ray + ray.position = camera.position; + ray.direction = direction; + + return ray; +} + +// Returns the screen space position from a 3d world space position +Vector2 GetWorldToScreen(Vector3 position, Camera camera) +{ + // Calculate projection matrix (from perspective instead of frustum + Matrix matProj = MatrixPerspective(camera.fovy, (double)GetScreenWidth()/(double)GetScreenHeight(), 0.01, 1000.0); + + // Calculate view matrix from camera look at (and transpose it) + Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up); + MatrixTranspose(&matView); + + // Convert world position vector to quaternion + Quaternion worldPos = { position.x, position.y, position.z, 1.0f }; + + // Transform world position to view + QuaternionTransform(&worldPos, matView); + + // Transform result to projection (clip space position) + QuaternionTransform(&worldPos, matProj); + + // Calculate normalized device coordinates (inverted y) + Vector3 ndcPos = { worldPos.x/worldPos.w, -worldPos.y/worldPos.w, worldPos.z/worldPos.w }; + + // Calculate 2d screen position vector + Vector2 screenPosition = { (ndcPos.x + 1.0f)/2.0f*(float)GetScreenWidth(), (ndcPos.y + 1.0f)/2.0f*(float)GetScreenHeight() }; + + return screenPosition; +} + +// Get transform matrix for camera +Matrix GetCameraMatrix(Camera camera) +{ + return MatrixLookAt(camera.position, camera.target, camera.up); +} + +// Set target FPS (maximum) void SetTargetFPS(int fps) { if (fps < 1) targetTime = 0.0; @@ -856,7 +1075,7 @@ int GetFPS(void) return (int)(1.0f/GetFrameTime()); } -// Returns time in seconds for one frame +// Returns time in seconds for last frame drawn float GetFrameTime(void) { // NOTE: We round value to milliseconds @@ -888,7 +1107,6 @@ float *VectorToFloat(Vector3 vec) return buffer; } -// Converts Matrix to float array // NOTE: Returned vector is a transposed version of the Matrix struct, // it should be this way because, despite raymath use OpenGL column-major convention, // Matrix struct memory alignment and variables naming are not coherent @@ -948,7 +1166,7 @@ int GetRandomValue(int min, int max) return (rand()%(abs(max-min)+1) + min); } -// Fades color by a percentadge +// Color fade-in or fade-out, alpha goes from 0.0f to 1.0f Color Fade(Color color, float alpha) { if (alpha < 0.0f) alpha = 0.0f; @@ -959,7 +1177,13 @@ Color Fade(Color color, float alpha) return (Color){color.r, color.g, color.b, (unsigned char)colorAlpha}; } -// Enable some window/system configurations +// Activate raylib logo at startup (can be done with flags) +void ShowLogo(void) +{ + showLogo = true; +} + +// Setup window configuration flags (view FLAGS) void SetConfigFlags(char flags) { configFlags = flags; @@ -968,21 +1192,74 @@ void SetConfigFlags(char flags) if (configFlags & FLAG_FULLSCREEN_MODE) fullscreen = true; } -// Activates raylib logo at startup -void ShowLogo(void) +// NOTE TraceLog() function is located in [utils.h] + +// Takes a screenshot of current screen (saved a .png) +void TakeScreenshot(const char *fileName) { - showLogo = true; +#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) + unsigned char *imgData = rlglReadScreenPixels(renderWidth, renderHeight); + SavePNG(fileName, imgData, renderWidth, renderHeight, 4); // Save image as PNG + free(imgData); + + TraceLog(INFO, "Screenshot taken: %s", fileName); +#endif +} + +// Check file extension +bool IsFileExtension(const char *fileName, const char *ext) +{ + bool result = false; + const char *fileExt; + + if ((fileExt = strrchr(fileName, '.')) != NULL) + { + if (strcmp(fileExt, ext) == 0) result = true; + } + + return result; +} + +// Get directory for a given fileName (with path) +const char *GetDirectoryPath(const char *fileName) +{ + char *lastSlash = NULL; + static char filePath[256]; // MAX_DIRECTORY_PATH_SIZE = 256 + memset(filePath, 0, 256); + + lastSlash = strrchr(fileName, '\\'); + strncpy(filePath, fileName, strlen(fileName) - (strlen(lastSlash) - 1)); + filePath[strlen(fileName) - strlen(lastSlash)] = '\0'; + + return filePath; +} + +// Get current working directory +const char *GetWorkingDirectory(void) +{ + static char currentDir[256]; // MAX_DIRECTORY_PATH_SIZE = 256 + memset(currentDir, 0, 256); + + GETCWD(currentDir, 256 - 1); + + return currentDir; +} + +// Change working directory, returns true if success +bool ChangeDirectory(const char *dir) +{ + return (CHDIR(dir) == 0); } #if defined(PLATFORM_DESKTOP) -// Check if a file have been dropped into window +// Check if a file has been dropped into window bool IsFileDropped(void) { if (dropFilesCount > 0) return true; else return false; } -// Retrieve dropped files into window +// Get dropped files names char **GetDroppedFiles(int *count) { *count = dropFilesCount; @@ -1003,7 +1280,7 @@ void ClearDroppedFiles(void) } #endif -// Storage save integer value (to defined position) +// Save integer value to storage file (to defined position) // NOTE: Storage positions is directly related to file memory layout (4 bytes each integer) void StorageSaveValue(int position, int value) { @@ -1043,7 +1320,7 @@ void StorageSaveValue(int position, int value) } } -// Storage load integer value (from defined position) +// Load integer value from storage file (from defined position) // NOTE: If requested position could not be found, value 0 is returned int StorageLoadValue(int position) { @@ -1082,106 +1359,6 @@ int StorageLoadValue(int position) return value; } -// Returns a ray trace from mouse position -Ray GetMouseRay(Vector2 mousePosition, Camera camera) -{ - Ray ray; - - // Calculate normalized device coordinates - // NOTE: y value is negative - float x = (2.0f*mousePosition.x)/(float)GetScreenWidth() - 1.0f; - float y = 1.0f - (2.0f*mousePosition.y)/(float)GetScreenHeight(); - float z = 1.0f; - - // Store values in a vector - Vector3 deviceCoords = { x, y, z }; - - TraceLog(DEBUG, "Device coordinates: (%f, %f, %f)", deviceCoords.x, deviceCoords.y, deviceCoords.z); - - // Calculate projection matrix (from perspective instead of frustum) - Matrix matProj = MatrixPerspective(camera.fovy, ((double)GetScreenWidth()/(double)GetScreenHeight()), 0.01, 1000.0); - - // Calculate view matrix from camera look at - Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up); - - // Do I need to transpose it? It seems that yes... - // NOTE: matrix order may be incorrect... In OpenGL to get world position from - // camera view it just needs to get inverted, but here we need to transpose it too. - // For example, if you get view matrix, transpose and inverted and you transform it - // to a vector, you will get its 3d world position coordinates (camera.position). - // If you don't transpose, final position will be wrong. - MatrixTranspose(&matView); - -//#define USE_RLGL_UNPROJECT -#if defined(USE_RLGL_UNPROJECT) // OPTION 1: Use rlglUnproject() - - Vector3 nearPoint = rlglUnproject((Vector3){ deviceCoords.x, deviceCoords.y, 0.0f }, matProj, matView); - Vector3 farPoint = rlglUnproject((Vector3){ deviceCoords.x, deviceCoords.y, 1.0f }, matProj, matView); - -#else // OPTION 2: Compute unprojection directly here - - // Calculate unproject matrix (multiply projection matrix and view matrix) and invert it - Matrix matProjView = MatrixMultiply(matProj, matView); - MatrixInvert(&matProjView); - - // Calculate far and near points - Quaternion near = { deviceCoords.x, deviceCoords.y, 0.0f, 1.0f }; - Quaternion far = { deviceCoords.x, deviceCoords.y, 1.0f, 1.0f }; - - // Multiply points by unproject matrix - QuaternionTransform(&near, matProjView); - QuaternionTransform(&far, matProjView); - - // Calculate normalized world points in vectors - Vector3 nearPoint = { near.x/near.w, near.y/near.w, near.z/near.w}; - Vector3 farPoint = { far.x/far.w, far.y/far.w, far.z/far.w}; -#endif - - // Calculate normalized direction vector - Vector3 direction = VectorSubtract(farPoint, nearPoint); - VectorNormalize(&direction); - - // Apply calculated vectors to ray - ray.position = camera.position; - ray.direction = direction; - - return ray; -} - -// Returns the screen space position from a 3d world space position -Vector2 GetWorldToScreen(Vector3 position, Camera camera) -{ - // Calculate projection matrix (from perspective instead of frustum - Matrix matProj = MatrixPerspective(camera.fovy, (double)GetScreenWidth()/(double)GetScreenHeight(), 0.01, 1000.0); - - // Calculate view matrix from camera look at (and transpose it) - Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up); - MatrixTranspose(&matView); - - // Convert world position vector to quaternion - Quaternion worldPos = { position.x, position.y, position.z, 1.0f }; - - // Transform world position to view - QuaternionTransform(&worldPos, matView); - - // Transform result to projection (clip space position) - QuaternionTransform(&worldPos, matProj); - - // Calculate normalized device coordinates (inverted y) - Vector3 ndcPos = { worldPos.x/worldPos.w, -worldPos.y/worldPos.w, worldPos.z/worldPos.w }; - - // Calculate 2d screen position vector - Vector2 screenPosition = { (ndcPos.x + 1.0f)/2.0f*(float)GetScreenWidth(), (ndcPos.y + 1.0f)/2.0f*(float)GetScreenHeight() }; - - return screenPosition; -} - -// Get transform matrix for camera -Matrix GetCameraMatrix(Camera camera) -{ - return MatrixLookAt(camera.position, camera.target, camera.up); -} - //---------------------------------------------------------------------------------- // Module Functions Definition - Input (Keyboard, Mouse, Gamepad) Functions //---------------------------------------------------------------------------------- @@ -1467,7 +1644,7 @@ int GetMouseWheelMove(void) #endif } -// Returns touch position X +// Returns touch position X for touch point 0 (relative to screen size) int GetTouchX(void) { #if defined(PLATFORM_ANDROID) || defined(PLATFORM_WEB) @@ -1477,7 +1654,7 @@ int GetTouchX(void) #endif } -// Returns touch position Y +// Returns touch position Y for touch point 0 (relative to screen size) int GetTouchY(void) { #if defined(PLATFORM_ANDROID) || defined(PLATFORM_WEB) @@ -1487,7 +1664,7 @@ int GetTouchY(void) #endif } -// Returns touch position XY +// Returns touch position XY for a touch point index (relative to screen size) // TODO: Touch position should be scaled depending on display size and render size Vector2 GetTouchPosition(int index) { @@ -1597,7 +1774,7 @@ static void InitGraphicsDevice(int width, int height) glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); // Choose OpenGL minor version (just hint) glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // Profiles Hint: Only 3.3 and above! // Other values: GLFW_OPENGL_ANY_PROFILE, GLFW_OPENGL_COMPAT_PROFILE -#ifdef __APPLE__ +#if defined(__APPLE__) glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // OSX Requires #else glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_FALSE); // Fordward Compatibility Hint: Only 3.3 and above! @@ -1739,12 +1916,13 @@ static void InitGraphicsDevice(int width, int height) const EGLint framebufferAttribs[] = { - EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, // Type of context support -> Required on RPI? - //EGL_SURFACE_TYPE, EGL_WINDOW_BIT, // Don't use it on Android! + EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, // Type of context support -> Required on RPI? + //EGL_SURFACE_TYPE, EGL_WINDOW_BIT, // Don't use it on Android! EGL_RED_SIZE, 8, // RED color bit depth (alternative: 5) EGL_GREEN_SIZE, 8, // GREEN color bit depth (alternative: 6) EGL_BLUE_SIZE, 8, // BLUE color bit depth (alternative: 5) - //EGL_ALPHA_SIZE, 8, // ALPHA bit depth + //EGL_ALPHA_SIZE, 8, // ALPHA bit depth (required for transparent framebuffer) + //EGL_TRANSPARENT_TYPE, EGL_NONE, // Request transparent framebuffer (EGL_TRANSPARENT_RGB does not work on RPI) EGL_DEPTH_SIZE, 16, // Depth buffer size (Required to use Depth testing!) //EGL_STENCIL_SIZE, 8, // Stencil buffer size EGL_SAMPLE_BUFFERS, sampleBuffer, // Activate MSAA @@ -1819,7 +1997,7 @@ static void InitGraphicsDevice(int width, int height) VC_DISPMANX_ALPHA_T alpha; alpha.flags = DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS; - alpha.opacity = 255; + alpha.opacity = 255; // Set transparency level for framebuffer, requires EGLAttrib: EGL_TRANSPARENT_TYPE alpha.mask = 0; dispmanDisplay = vc_dispmanx_display_open(0); // LCD @@ -1882,7 +2060,7 @@ static void InitGraphicsDevice(int width, int height) // Set viewport parameters static void SetupViewport(void) { -#ifdef __APPLE__ +#if defined(__APPLE__) // Get framebuffer size of current window // NOTE: Required to handle HighDPI display correctly on OSX because framebuffer // is automatically reasized to adapt to new DPI. @@ -1974,6 +2152,10 @@ static void SetupFramebufferSize(int displayWidth, int displayHeight) static void InitTimer(void) { srand(time(NULL)); // Initialize random seed + +#if !defined(SUPPORT_BUSY_WAIT_LOOP) && defined(_WIN32) + timeBeginPeriod(1); // Setup high-resolution timer to 1ms (granularity of 1-2 ms) +#endif #if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) struct timespec now; @@ -2005,9 +2187,11 @@ static double GetTime(void) } // Wait for some milliseconds (stop program execution) +// NOTE: Sleep() granularity could be around 10 ms, it means, Sleep() could +// take longer than expected... for that reason we use the busy wait loop +// http://stackoverflow.com/questions/43057578/c-programming-win32-games-sleep-taking-longer-than-expected static void Wait(float ms) { -#define SUPPORT_BUSY_WAIT_LOOP #if defined(SUPPORT_BUSY_WAIT_LOOP) double prevTime = GetTime(); double nextTime = 0.0; @@ -2015,9 +2199,9 @@ static void Wait(float ms) // Busy wait loop while ((nextTime - prevTime) < ms/1000.0f) nextTime = GetTime(); #else - #if defined _WIN32 - Sleep(ms); - #elif defined __linux || defined(PLATFORM_WEB) + #if defined(_WIN32) + Sleep((unsigned int)ms); + #elif defined(__linux__) || defined(PLATFORM_WEB) struct timespec req = { 0 }; time_t sec = (int)(ms/1000.0f); ms -= (sec*1000); @@ -2026,7 +2210,7 @@ static void Wait(float ms) // NOTE: Use nanosleep() on Unix platforms... usleep() it's deprecated. while (nanosleep(&req, &req) == -1) continue; - #elif defined __APPLE__ + #elif defined(__APPLE__) usleep(ms*1000.0f); #endif #endif @@ -2065,9 +2249,11 @@ static bool GetMouseButtonStatus(int button) // Poll (store) all input events static void PollInputEvents(void) { +#if defined(SUPPORT_GESTURES_SYSTEM) // NOTE: Gestures update must be called every frame to reset gestures correctly // because ProcessGestureEvent() is just called on an event, not every frame UpdateGestures(); +#endif // Reset last key pressed registered lastKeyPressed = -1; @@ -2238,28 +2424,6 @@ static void SwapBuffers(void) #endif } -#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) -// Takes a screenshot and saves it in the same folder as executable -static void TakeScreenshot(void) -{ - static int shotNum = 0; // Screenshot number, increments every screenshot take during program execution - char buffer[20]; // Buffer to store file name - - unsigned char *imgData = rlglReadScreenPixels(renderWidth, renderHeight); - - sprintf(buffer, "screenshot%03i.png", shotNum); - - // Save image as PNG - SavePNG(buffer, imgData, renderWidth, renderHeight, 4); - - free(imgData); - - shotNum++; - - TraceLog(INFO, "[%s] Screenshot taken!", buffer); -} -#endif - #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) // GLFW3 Error Callback, runs on GLFW3 error static void ErrorCallback(int error, const char *description) @@ -2283,8 +2447,39 @@ static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, i // NOTE: Before closing window, while loop must be left! } #if defined(PLATFORM_DESKTOP) - else if (key == GLFW_KEY_F12 && action == GLFW_PRESS) TakeScreenshot(); -#endif + else if (key == GLFW_KEY_F12 && action == GLFW_PRESS) + { + #if defined(SUPPORT_GIF_RECORDING) + if (mods == GLFW_MOD_CONTROL) + { + if (gifRecording) + { + GifEnd(&gifWriter); + gifRecording = false; + + TraceLog(INFO, "End animated GIF recording"); + } + else + { + gifRecording = true; + gifFramesCounter = 0; + + // NOTE: delay represents the time between frames in the gif, if we capture a gif frame every + // 10 game frames and each frame trakes 16.6ms (60fps), delay between gif frames should be ~16.6*10. + GifBegin(&gifWriter, FormatText("screenrec%03i.gif", screenshotCounter), screenWidth, screenHeight, (int)(GetFrameTime()*10.0f), 8, false); + screenshotCounter++; + + TraceLog(INFO, "Begin animated GIF recording: %s", FormatText("screenrec%03i.gif", screenshotCounter)); + } + } + else + #endif // SUPPORT_GIF_RECORDING + { + TakeScreenshot(FormatText("screenshot%03i.png", screenshotCounter)); + screenshotCounter++; + } + } +#endif // PLATFORM_DESKTOP else { currentKeyState[key] = action; @@ -2297,8 +2492,7 @@ static void MouseButtonCallback(GLFWwindow *window, int button, int action, int { currentMouseState[button] = action; -#define ENABLE_MOUSE_GESTURES -#if defined(ENABLE_MOUSE_GESTURES) +#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES) // Process mouse events as touches to be able to use mouse-gestures GestureEvent gestureEvent; @@ -2329,8 +2523,7 @@ static void MouseButtonCallback(GLFWwindow *window, int button, int action, int // GLFW3 Cursor Position Callback, runs on mouse move static void MouseCursorPosCallback(GLFWwindow *window, double x, double y) { -#define ENABLE_MOUSE_GESTURES -#if defined(ENABLE_MOUSE_GESTURES) +#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES) // Process mouse events as touches to be able to use mouse-gestures GestureEvent gestureEvent; @@ -2460,7 +2653,7 @@ static void AndroidCommandCallback(struct android_app *app, int32_t cmd) // Init graphics device (display device and OpenGL context) InitGraphicsDevice(screenWidth, screenHeight); - #if defined(LOAD_DEFAULT_FONT) + #if defined(SUPPORT_DEFAULT_FONT) // Load default font // NOTE: External function (defined in module: text) LoadDefaultFont(); @@ -2664,8 +2857,42 @@ static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const Emscripte return 0; } +// Register keyboard input events +static EM_BOOL EmscriptenKeyboardCallback(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData) +{ + if ((eventType == EMSCRIPTEN_EVENT_KEYPRESS) && (strcmp(keyEvent->code, "Escape") == 0)) + { + emscripten_exit_pointerlock(); + } + + return 0; +} + +// Register mouse input events +static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData) +{ + // Lock mouse pointer when click on screen + if ((eventType == EMSCRIPTEN_EVENT_CLICK) && toggleCursorLock) + { + EmscriptenPointerlockChangeEvent plce; + emscripten_get_pointerlock_status(&plce); + + if (!plce.isActive) emscripten_request_pointerlock(0, 1); + else + { + emscripten_exit_pointerlock(); + emscripten_get_pointerlock_status(&plce); + //if (plce.isActive) TraceLog(WARNING, "Pointer lock exit did not work!"); + } + + toggleCursorLock = false; + } + + return 0; +} + // Register touch input events -static EM_BOOL EmscriptenInputCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData) +static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData) { /* for (int i = 0; i < touchEvent->numTouches; i++) @@ -2891,8 +3118,12 @@ static void ProcessKeyboard(void) // Check exit key (same functionality as GLFW3 KeyCallback()) if (currentKeyState[exitKey] == 1) windowShouldClose = true; - // Check screen capture key - if (currentKeyState[301] == 1) TakeScreenshot(); // raylib key: KEY_F12 (GLFW_KEY_F12) + // Check screen capture key (raylib key: KEY_F12) + if (currentKeyState[301] == 1) + { + TakeScreenshot(FormatText("screenshot%03i.png", screenshotCounter)); + screenshotCounter++; + } } // Restore default keyboard input @@ -3179,7 +3410,7 @@ static void *GamepadThread(void *arg) // Plays raylib logo appearing animation static void LogoAnimation(void) { -#ifndef PLATFORM_WEB +#if !defined(PLATFORM_WEB) int logoPositionX = screenWidth/2 - 128; int logoPositionY = screenHeight/2 - 128; |