mirror of
https://github.com/Not-Nik/raylib-zig.git
synced 2025-09-09 20:17:28 +00:00
92 lines
3.9 KiB
Zig
92 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{ .x = 350.0, .y = 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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{
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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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{
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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)) {framesSpeed+=1;}
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else if (rl.IsKeyPressed(rl.KeyboardKey.KEY_LEFT)) {framesSpeed-=1;}
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if (framesSpeed > MAX_FRAME_SPEED) {framesSpeed = MAX_FRAME_SPEED;}
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else if (framesSpeed < MIN_FRAME_SPEED) {framesSpeed = MIN_FRAME_SPEED;}
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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.RAYWHITE);
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rl.DrawTexture(scarfy, 15, 40, rl.WHITE);
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rl.DrawRectangleLines(15, 40, scarfy.width, scarfy.height, rl.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.RED);
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rl.DrawText("FRAME SPEED: ", 165, 210, 10, rl.DARKGRAY);
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rl.DrawText(rl.TextFormat("%02i FPS", framesSpeed), 575, 210, 10, rl.DARKGRAY);
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rl.DrawText("PRESS RIGHT/LEFT KEYS to CHANGE SPEED!", 290, 240, 10, rl.DARKGRAY);
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for ([_]u32{0} ** MAX_FRAME_SPEED) |_, i| {
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if (i < framesSpeed) {rl.DrawRectangle(250 + 21*@intCast(c_int, i), 205, 20, 20, rl.RED);}
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rl.DrawRectangleLines(250 + 21*@intCast(c_int, i), 205, 20, 20, rl.MAROON);
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}
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rl.DrawTextureRec(scarfy, frameRec, position, rl.WHITE); // Draw part of the texture
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rl.DrawText("(c) Scarfy sprite by Eiden Marsal", screenWidth - 200, screenHeight - 20, 10, rl.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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