diff options
Diffstat (limited to 'examples/src/textures/textures_particles_blending.c')
| -rw-r--r-- | examples/src/textures/textures_particles_blending.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/examples/src/textures/textures_particles_blending.c b/examples/src/textures/textures_particles_blending.c index 3b7dcaa..75287ea 100644 --- a/examples/src/textures/textures_particles_blending.c +++ b/examples/src/textures/textures_particles_blending.c @@ -23,18 +23,18 @@ typedef struct { bool active; // NOTE: Use it to activate/deactive particle } Particle; -int main() +int main(void) { // Initialization //-------------------------------------------------------------------------------------- - int screenWidth = 800; - int screenHeight = 450; + const int screenWidth = 800; + const int screenHeight = 450; InitWindow(screenWidth, screenHeight, "raylib [textures] example - particles blending"); - + // Particles pool, reuse them! - Particle mouseTail[MAX_PARTICLES]; - + Particle mouseTail[MAX_PARTICLES]; + // Initialize particles for (int i = 0; i < MAX_PARTICLES; i++) { @@ -45,13 +45,13 @@ int main() mouseTail[i].rotation = (float)GetRandomValue(0, 360); mouseTail[i].active = false; } - + float gravity = 3.0f; Texture2D smoke = LoadTexture("resources/smoke.png"); - + int blending = BLEND_ALPHA; - + SetTargetFPS(60); //-------------------------------------------------------------------------------------- @@ -60,7 +60,7 @@ int main() { // Update //---------------------------------------------------------------------------------- - + // Activate one particle every frame and Update active particles // NOTE: Particles initial position should be mouse position when activated // NOTE: Particles fall down with gravity and rotation... and disappear after 2 seconds (alpha = 0) @@ -82,13 +82,13 @@ int main() { mouseTail[i].position.y += gravity; mouseTail[i].alpha -= 0.01f; - + if (mouseTail[i].alpha <= 0.0f) mouseTail[i].active = false; - + mouseTail[i].rotation += 5.0f; } } - + if (IsKeyPressed(KEY_SPACE)) { if (blending == BLEND_ALPHA) blending = BLEND_ADDITIVE; @@ -101,25 +101,25 @@ int main() BeginDrawing(); ClearBackground(DARKGRAY); - + BeginBlendMode(blending); // Draw active particles for (int i = 0; i < MAX_PARTICLES; i++) { - if (mouseTail[i].active) DrawTexturePro(smoke, (Rectangle){ 0.0f, 0.0f, (float)smoke.width, (float)smoke.height }, + if (mouseTail[i].active) DrawTexturePro(smoke, (Rectangle){ 0.0f, 0.0f, (float)smoke.width, (float)smoke.height }, (Rectangle){ mouseTail[i].position.x, mouseTail[i].position.y, smoke.width*mouseTail[i].size, smoke.height*mouseTail[i].size }, (Vector2){ (float)(smoke.width*mouseTail[i].size/2.0f), (float)(smoke.height*mouseTail[i].size/2.0f) }, mouseTail[i].rotation, Fade(mouseTail[i].color, mouseTail[i].alpha)); } - + EndBlendMode(); - + DrawText("PRESS SPACE to CHANGE BLENDING MODE", 180, 20, 20, BLACK); - + if (blending == BLEND_ALPHA) DrawText("ALPHA BLENDING", 290, screenHeight - 40, 20, BLACK); else DrawText("ADDITIVE BLENDING", 280, screenHeight - 40, 20, RAYWHITE); - + EndDrawing(); //---------------------------------------------------------------------------------- } @@ -127,7 +127,7 @@ int main() // De-Initialization //-------------------------------------------------------------------------------------- UnloadTexture(smoke); - + CloseWindow(); // Close window and OpenGL context //-------------------------------------------------------------------------------------- |