mirror of
https://github.com/Not-Nik/raylib-zig.git
synced 2025-09-09 12:07:27 +00:00
97 lines
3.9 KiB
Zig
97 lines
3.9 KiB
Zig
// Port of https://github.com/raysan5/raylib/blob/master/examples/textures/textures_sprite_anim.c to zig
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const std = @import("std");
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const rl = @import("raylib");
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const MAX_FRAME_SPEED = 15;
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const MIN_FRAME_SPEED = 1;
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pub fn main() anyerror!void {
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// Initialization
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//--------------------------------------------------------------------------------------
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const screenWidth = 800;
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const screenHeight = 450;
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rl.InitAudioDevice(); // Initialize audio device
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rl.InitWindow(screenWidth, screenHeight, "raylib [texture] example - sprite anim");
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// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
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const scarfy: rl.Texture2D = rl.LoadTexture("resources/textures/scarfy.png"); // Texture loading
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const position = rl.Vector2.init(350.0, 280.0);
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var frameRec = rl.Rectangle{ .x = 0.0, .y = 0.0, .width = @intToFloat(f32, @divFloor(scarfy.width, 6)), .height = @intToFloat(f32, scarfy.height) };
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var currentFrame: u8 = 0;
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var framesCounter: u8 = 0;
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var framesSpeed: u8 = 8; // Number of spritesheet frames shown by second
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rl.SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!rl.WindowShouldClose()) { // Detect window close button or ESC key
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// Update
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//----------------------------------------------------------------------------------
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framesCounter += 1;
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if (framesCounter >= (60 / framesSpeed)) {
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framesCounter = 0;
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currentFrame += 1;
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if (currentFrame > 5) currentFrame = 0;
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frameRec.x = @intToFloat(f32, currentFrame) * @intToFloat(f32, @divFloor(scarfy.width, 6));
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}
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// Control frames speed
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if (rl.IsKeyPressed(rl.KeyboardKey.KEY_RIGHT)) {
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framesSpeed += 1;
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} else if (rl.IsKeyPressed(rl.KeyboardKey.KEY_LEFT)) {
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framesSpeed -= 1;
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}
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if (framesSpeed > MAX_FRAME_SPEED) {
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framesSpeed = MAX_FRAME_SPEED;
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} else if (framesSpeed < MIN_FRAME_SPEED) {
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framesSpeed = MIN_FRAME_SPEED;
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}
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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rl.BeginDrawing();
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rl.ClearBackground(rl.Color.RAYWHITE);
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rl.DrawTexture(scarfy, 15, 40, rl.Color.WHITE);
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rl.DrawRectangleLines(15, 40, scarfy.width, scarfy.height, rl.Color.LIME);
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rl.DrawRectangleLines(15 + @floatToInt(i32, frameRec.x), 40 + @floatToInt(i32, frameRec.y), @floatToInt(i32, frameRec.width), @floatToInt(i32, frameRec.height), rl.Color.RED);
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rl.DrawText("FRAME SPEED: ", 165, 210, 10, rl.Color.DARKGRAY);
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rl.DrawText(rl.TextFormat("%02i FPS", framesSpeed), 575, 210, 10, rl.Color.DARKGRAY);
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rl.DrawText("PRESS RIGHT/LEFT KEYS to CHANGE SPEED!", 290, 240, 10, rl.Color.DARKGRAY);
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for ([_]u32{0} ** MAX_FRAME_SPEED) |_, i| {
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if (i < framesSpeed) {
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rl.DrawRectangle(250 + 21 * @intCast(c_int, i), 205, 20, 20, rl.Color.RED);
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}
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rl.DrawRectangleLines(250 + 21 * @intCast(c_int, i), 205, 20, 20, rl.Color.MAROON);
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}
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rl.DrawTextureRec(scarfy, frameRec, position, rl.Color.WHITE); // Draw part of the texture
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rl.DrawText("(c) Scarfy sprite by Eiden Marsal", screenWidth - 200, screenHeight - 20, 10, rl.Color.GRAY);
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rl.EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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rl.UnloadTexture(scarfy); // Texture unloading
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rl.CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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}
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