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caviar stars caviar releases caviar License


game engine built on top of daybreak with WebGPU bindings with desktop and web support

Maintainers

Running In the Browser

Usage

moving squares

import { Rectangle, Scene, World } from "https://deno.land/x/caviar/mod.ts";

class Game extends Scene {
  test = new Rectangle(0, 0, 100, 100, "#00ff00");
  test2 = new Rectangle(0, 0, 100, 100, "#00ff00");

  setup() {
    this.addChild(this.test);
    this.addChild(this.test2);
  }
  update() {
    this.test.x += 5;
    this.test2.x += 2;
  }
}

const test = new World({
  title: "test",
  width: 800,
  height: 600,
  resizable: true,
}, [Game]);

await test.start();

perlin noise

import {
  Group,
  Rectangle,
  Scene,
  World,
} from "https://deno.land/x/caviar/mod.ts";
import { PerlinNoise } from "https://deno.land/x/caviar/src/utils/mod.ts";

class Game extends Scene {
  test: any;
  chunkSize = 16;
  tileSize = 16;
  group: Group | undefined;

  setup() {
    this.group = new Group(this, 0, 0);
    this.world.loadPlugin("perlin", PerlinNoise);

    this.test = this.world.usePlugin("perlin");
    this.test.setSeed(0);

    for (let x = -40; x < this.chunkSize; x++) {
      for (let y = -40; y < this.chunkSize; y++) {
        const tileX = (1 * (this.chunkSize * this.tileSize)) +
          (x * this.tileSize);
        const tileY = (1 * (this.chunkSize * this.tileSize)) +
          (y * this.tileSize);
        const perlinValue = this.test.perlin2(tileX / 100, tileY / 100);
        if (perlinValue < 0.2) {
          this.group.addChild(
            new Rectangle(
              tileX,
              tileY,
              this.tileSize,
              this.tileSize,
              "#ff0000",
            ),
          );
        } else if (perlinValue >= 0.2 && perlinValue < 0.3) {
          this.group.addChild(
            new Rectangle(
              tileX,
              tileY,
              this.tileSize,
              this.tileSize,
              "#00ff00",
            ),
          );
        } else if (perlinValue >= 0.3) {
          this.group.addChild(
            new Rectangle(
              tileX,
              tileY,
              this.tileSize,
              this.tileSize,
              "#0000ff",
            ),
          );
        }
      }
    }
    this.addChild(this.group);
  }
  update() {
  }
}

const test = new World({
  title: "test",
  width: 800,
  height: 600,
  resizable: true,
}, [Game]);

await test.start();

pixel texture

import {
  Keys,
  PICO8,
  Scene,
  TextureSprite,
  World,
} from "https://deno.land/x/caviar/mod.ts";
import type {
  KeyEvent,
  MouseDownEvent,
} from "https://deno.land/x/caviar/mod.ts";

class Game extends Scene {
  test = new TextureSprite(this, 10, 10, {
    data: [
      "..9..9..",
      "..9999..",
      ".AAAAAA.",
      ".A1F1FA.",
      ".AFFFFA.",
      ".FEEEEAA",
      ".EEEEEEA",
      "..E..E..",
    ],
    pixelWidth: 32,
    pixelHeight: 32,
    palette: PICO8,
  });

  setup() {
    this.addChild(this.test);
  }
  draw() {
  }
  keyDown(key: KeyEvent) {
    switch (key.keycode) {
      case Keys.ARROWUP: {
        this.test.setY(this.test.y - 10);
        break;
      }
      case Keys.ARROWDOWN: {
        this.test.setY(this.test.y + 10);
        break;
      }
      case Keys.ARROWLEFT: {
        this.test.setX(this.test.x - 10);
        break;
      }
      case Keys.ARROWRIGHT: {
        this.test.setX(this.test.x + 10);
        break;
      }
    }
  }
}

const test = new World({
  title: "test",
  width: 800,
  height: 600,
  centered: true,
  fullscreen: false,
  hidden: false,
  resizable: true,
  minimized: false,
  maximized: false,
  flags: null,
}, [Game]);

await test.start();

License

MIT

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