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A WebGPU retro game engine for TypeScript, inspired by RetroBlit. Build pixel-perfect 2D games with a clean, fantasy-console-style API.
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TypeScript
at main
12345678910111213141516171819202122232425262728293031323334353637383940414243444546import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest';
import { createMockGPUDevice, installMockNavigatorGPU, uninstallMockNavigatorGPU } from '../../../__test__/webgpu-mock';import { Vector2i } from '../../../utils/Vector2i';import { ChromaticAberration } from './ChromaticAberration';
const FORMAT: GPUTextureFormat = 'bgra8unorm';const SIZE = new Vector2i(1280, 960);
beforeAll(() => { installMockNavigatorGPU();});
afterAll(() => { uninstallMockNavigatorGPU();});
describe('ChromaticAberration', () => { it("declares tier='display'", () => { expect(new ChromaticAberration().tier).toBe('display'); });
it('init allocates a 16-byte uniform buffer', () => { const device = createMockGPUDevice(); const createBuffer = vi.spyOn(device, 'createBuffer'); const fx = new ChromaticAberration();
fx.init(device, FORMAT, SIZE);
expect(createBuffer.mock.calls[0]?.[0]?.size).toBe(16); });
it('updateUniforms writes resolution and aberration', () => { const device = createMockGPUDevice(); const writeBuffer = vi.spyOn(device.queue, 'writeBuffer'); const fx = new ChromaticAberration(); fx.aberration = 2.5;
fx.init(device, FORMAT, SIZE); fx.updateUniforms(16, new Vector2i(1280, 960));
const buf = writeBuffer.mock.calls[0]?.[2] as Float32Array; expect(buf[2]).toBeCloseTo(2.5); });});