// Update position based on velocity void update_position(AnimatedSprite* sprite) sprite->x += sprite->velocity_x; sprite->y += sprite->velocity_y;
for (int i = 0; i < FRAME_COUNT; i++) sprite->frames[i].x = i * frame_width; sprite->frames[i].y = 0; sprite->frames[i].w = frame_width; sprite->frames[i].h = frame_height; sdl3 tutorial
// Game loop while (running) current_time = SDL_GetTicks(); delta_time = (current_time - last_time) / 1000.0f; last_time = current_time; // Input handling handle_input(&event, player, &running); // Update update_position(player); update_animation(player); // Render SDL_SetRenderDrawColor(renderer, 30, 30, 50, 255); SDL_RenderClear(renderer); // Draw grid for visual reference SDL_SetRenderDrawColor(renderer, 60, 60, 80, 255); for (int x = 0; x < SCREEN_WIDTH; x += 50) SDL_RenderLine(renderer, x, 0, x, SCREEN_HEIGHT); SDL_RenderLine(renderer, 0, x, SCREEN_WIDTH, x); // Draw sprite render_sprite(renderer, player); // Display info text (using debug overlay) char info[256]; snprintf(info, sizeof(info), "Frame: %d/%d x += sprite->
// Update animation frame void update_animation(AnimatedSprite* sprite) if (sprite->moving) sprite->frame_counter++; if (sprite->frame_counter >= sprite->frame_delay) sprite->frame_counter = 0; sprite->current_frame = (sprite->current_frame + 1) % FRAME_COUNT; y += sprite->
// Initialize animation state sprite->current_frame = 0; sprite->frame_counter = 0; sprite->frame_delay = ANIMATION_SPEED; sprite->x = SCREEN_WIDTH / 2 - frame_width / 2; sprite->y = SCREEN_HEIGHT / 2 - frame_height / 2; sprite->velocity_x = 0; sprite->velocity_y = 0; sprite->moving = false;
else // Reset to first frame when idle sprite->current_frame = 0; sprite->frame_counter = 0;