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Ray 2022-08-02 00:30:57 +02:00
parent b20d416131
commit fe9e82b2e6
4 changed files with 101 additions and 101 deletions
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24
examples/textures/textures_gif_player.c
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@ -27,22 +27,22 @@ int main(void)
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [textures] example - gif playing");
int animFrames = 0;
// Load all GIF animation frames into a single Image
// NOTE: GIF data is always loaded as RGBA (32bit) by default
// NOTE: Frames are just appended one after another in image.data memory
Image imScarfyAnim = LoadImageAnim("resources/scarfy_run.gif", &animFrames);
// Load texture from image
// NOTE: We will update this texture when required with next frame data
// WARNING: It's not recommended to use this technique for sprites animation,
// use spritesheets instead, like illustrated in textures_sprite_anim example
Texture2D texScarfyAnim = LoadTextureFromImage(imScarfyAnim);
unsigned int nextFrameDataOffset = 0; // Current byte offset to next frame in image.data
int currentAnimFrame = 0; // Current animation frame to load and draw
int frameDelay = 8; // Frame delay to switch between animation frames
int frameCounter = 0; // General frames counter
@ -56,23 +56,23 @@ int main(void)
// Update
//----------------------------------------------------------------------------------
frameCounter++;
if (frameCounter >= frameDelay)
if (frameCounter >= frameDelay)
{
// Move to next frame
// NOTE: If final frame is reached we return to first frame
currentAnimFrame++;
if (currentAnimFrame >= animFrames) currentAnimFrame = 0;
// Get memory offset position for next frame data in image.data
nextFrameDataOffset = imScarfyAnim.width*imScarfyAnim.height*4*currentAnimFrame;
// Update GPU texture data with next frame image data
// WARNING: Data size (frame size) and pixel format must match already created texture
UpdateTexture(texScarfyAnim, ((unsigned char *)imScarfyAnim.data) + nextFrameDataOffset);
frameCounter = 0;
}
// Control frames delay
if (IsKeyPressed(KEY_RIGHT)) frameDelay++;
else if (IsKeyPressed(KEY_LEFT)) frameDelay--;
@ -90,7 +90,7 @@ int main(void)
DrawText(TextFormat("TOTAL GIF FRAMES: %02i", animFrames), 50, 30, 20, LIGHTGRAY);
DrawText(TextFormat("CURRENT FRAME: %02i", currentAnimFrame), 50, 60, 20, GRAY);
DrawText(TextFormat("CURRENT FRAME IMAGE.DATA OFFSET: %02i", nextFrameDataOffset), 50, 90, 20, GRAY);
DrawText("FRAMES DELAY: ", 100, 305, 10, DARKGRAY);
DrawText(TextFormat("%02i frames", frameDelay), 620, 305, 10, DARKGRAY);
DrawText("PRESS RIGHT/LEFT KEYS to CHANGE SPEED!", 290, 350, 10, DARKGRAY);
@ -113,7 +113,7 @@ int main(void)
//--------------------------------------------------------------------------------------
UnloadTexture(texScarfyAnim); // Unload texture
UnloadImage(imScarfyAnim); // Unload image (contains all frames)
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------