A raycast engine written in TypeScript.
You can play the demo at https://games.delarco.com.br/raycast-demo.
Create a TypeScript project from scratch or using your favorite tool/framework:
npm create vite@latestInstall the raycast-ts package:
npm install git+https://github.com/delarco/raycast-ts.gitCreate a scene:
// test-scene.ts
import { RaycastScene } from "raycast-ts";
export class TestScene extends RaycastScene {
public override preload(): void {
// create a map from a number array
this.load.mapFromIntArray([
1, 1, 1, 1, 1,
1, 0, 0, 0, 1,
1, 0, 0, 0, 1,
1, 0, 0, 0, 1,
1, 1, 1, 1, 1,
], {
width: 5,
height: 5
})
}
}In the main file (main.ts for Vite), create a game and start the scene:
// index.ts or main.ts or app.ts or whatever.ts
import { TestScene } from './TestScene.ts'
const game = new Game()
game.start(TestScene)Running, we get something like this:
You can move the camera with:
- Arrow keys;
- WASD keys; and
- Click on the canvas and use the mouse to rotate the camera.
Tiles whith value 0 are not solid and have no collision. Values greater than 0 are walls (solid and collision) and we can set a color:
// test-scene.ts
/* ... */
this.load.mapFromIntArray([
1, 1, 1, 5, 1,
1, 0, 0, 0, 2,
1, 0, 0, 0, 3,
1, 0, 0, 0, 4,
1, 1, 1, 6, 1,
], {
width: 5,
height: 5
}, {
1: Color.WHITE,
2: Color.RED,
3: Color.GREEN,
4: Color.BLUE,
5: Color.YELLOW,
6: Color.ORANGE,
})
/* ... */
You can also load a map from json files, check the demo project.
To use a texture, load it in the preload method and apply in init method:
// test-scene.ts
public override preload(): void {
/* ... */
this.load.texture("texture-1", "./texture-file.jpg")
}
public override init(): void {
for (const tile of this.map.tiles) {
tile.texture = {
...tile.texture,
[Side.WEST]: this.load.getTexture("texture-1")!
// each side can have a different texture
}
}
}
- tests
- Keymaps
- Animated rectangle (sprites)
- Create an AssetsManager
- Implement a good map parser