client

commit 5499b903902efb3e7ae67dfbd766a4b487d8fbf3 Author: zwitschi Date: Sat May 2 14:35:54 2026 +0200 feat: add initial implementation of ECS architecture and systems - Introduced a minimal Entity-Component-System (ECS) framework in `ecs.ts` with basic entity management and component handling. - Created `World` class to manage entities and components, including methods for creating, adding, retrieving, and removing components. - Implemented unit tests for the `World` class in `ecs.test.ts` to ensure functionality. - Developed input handling with `InputSystem` to capture keyboard events. - Added `PhysicsSystem` for movement and collision detection. - Created `RenderSystem` to handle drawing entities on the canvas. - Set up a main game loop in `main.ts` to integrate systems and manage game state. - Added SVG icons and images for UI elements. - Included CSS styles for layout and theming. - Configured TypeScript settings in `tsconfig.json` for project compilation. Co-authored-by: Copilot diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..755570d --- /dev/null +++ b/.gitignore @@ -0,0 +1,32 @@ +# Logs +logs +*.log +npm-debug.log* +yarn-debug.log* +yarn-error.log* +pnpm-debug.log* +lerna-debug.log* + +node_modules +dist +dist-ssr +*.local + +# Vite +.vite/ + +# Editor directories and files +.vscode/* +!.vscode/extensions.json +.idea +.DS_Store +*.suo +*.ntvs* +*.njsproj +*.sln +*.sw? + +# Environment +.env +.env.local +.env.*.local diff --git a/README.md b/README.md new file mode 100644 index 0000000..d230598 --- /dev/null +++ b/README.md @@ -0,0 +1,41 @@ +# ZAMNY Client + +Vite + TypeScript + Canvas 2D + ECS game client for _Zombies Ate My Neighbors_ browser edition. + +## Quick Start + +```bash +npm install +npm run dev # http://localhost:5173 +npm test # vitest (ECS tests) +npm run build +``` + +## Structure + +```txt +src/ + engine/ + ecs.ts # World, Entity, Component, System base + ecs.test.ts # 6 unit tests (green) + systems/ + InputSystem.ts # keyboard/touch stub + RenderSystem.ts # Canvas 2D stub + PhysicsSystem.ts # movement/collision stub + main.ts # 60 FPS game loop + system orchestration +``` + +## Key Points + +- ECS core: `createEntity`, `addComponent`, `query`, `destroyEntity` +- Systems extend `System` and implement `update(world, dt)` +- Target: 60 FPS, offline single-player works without server +- Nickname UI, NetworkClient, sprite rendering: TODO + +## Testing + +- Vitest + jsdom +- `npm test` runs `ecs.test.ts` +- Coverage target: 70% (documented in ARCHITECTURE.md §10) + +See root [README.md](../README.md) and [ARCHITECTURE.md](../ARCHITECTURE.md) for full design. diff --git a/index.html b/index.html new file mode 100644 index 0000000..04c65df --- /dev/null +++ b/index.html @@ -0,0 +1,13 @@ + + + + + + + client + + +

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true + }, + "jiti": { + "optional": true + }, + "less": { + "optional": true + }, + "sass": { + "optional": true + }, + "sass-embedded": { + "optional": true + }, + "stylus": { + "optional": true + }, + "sugarss": { + "optional": true + }, + "terser": { + "optional": true + }, + "tsx": { + "optional": true + }, + "yaml": { + "optional": true + } + } + } + } +} diff --git a/package.json b/package.json new file mode 100644 index 0000000..7e5eb02 --- /dev/null +++ b/package.json @@ -0,0 +1,19 @@ +{ + "name": "client", + "private": true, + "version": "0.0.0", + "type": "module", + "scripts": { + "dev": "vite", + "build": "tsc && vite build", + "preview": "vite preview", + "test": "vitest run", + "test:watch": "vitest" + }, + "devDependencies": { + "typescript": "~6.0.2", + "vite": "^8.0.10", + "vitest": "^1.6.0", + "jsdom": "^24.1.0" + } +} diff --git a/public/favicon.svg b/public/favicon.svg new file mode 100644 index 0000000..6893eb1 --- /dev/null +++ b/public/favicon.svg @@ -0,0 +1 @@ + \ No newline at end of file diff --git a/public/icons.svg b/public/icons.svg new file mode 100644 index 0000000..e952219 --- /dev/null +++ b/public/icons.svg @@ -0,0 +1,24 @@ + diff --git a/src/assets/hero.png b/src/assets/hero.png new file mode 100644 index 0000000..02251f4 Binary files /dev/null and b/src/assets/hero.png differ diff --git a/src/assets/typescript.svg b/src/assets/typescript.svg new file mode 100644 index 0000000..6c9d69c --- /dev/null +++ b/src/assets/typescript.svg @@ -0,0 +1 @@ + diff --git a/src/assets/vite.svg b/src/assets/vite.svg new file mode 100644 index 0000000..5101b67 --- /dev/null +++ b/src/assets/vite.svg @@ -0,0 +1 @@ + diff --git a/src/counter.ts b/src/counter.ts new file mode 100644 index 0000000..9f629e8 --- /dev/null +++ b/src/counter.ts @@ -0,0 +1,9 @@ +export function setupCounter(element: HTMLButtonElement) { + let counter = 0 + const setCounter = (count: number) => { + counter = count + element.innerHTML = `Count is ${counter}` + } + element.addEventListener('click', () => setCounter(counter + 1)) + setCounter(0) +} diff --git a/src/engine/ecs.test.ts b/src/engine/ecs.test.ts new file mode 100644 index 0000000..3dc0950 --- /dev/null +++ b/src/engine/ecs.test.ts @@ -0,0 +1,61 @@ +import { describe, it, expect, beforeEach } from "vitest"; +import { World } from "./ecs"; + +describe("World", () => { + let world: World; + + beforeEach(() => { + world = new World(); + }); + + it("creates unique entities", () => { + const a = world.createEntity(); + const b = world.createEntity(); + expect(a).not.toBe(b); + }); + + it("adds and retrieves components", () => { + const e = world.createEntity(); + const pos = { x: 10, y: 20 }; + world.addComponent(e, "Position", pos); + expect(world.getComponent(e, "Position")).toEqual(pos); + }); + + it("checks component presence", () => { + const e = world.createEntity(); + world.addComponent(e, "Sprite", { src: "zombie.png" }); + expect(world.hasComponent(e, "Sprite")).toBe(true); + expect(world.hasComponent(e, "Position")).toBe(false); + }); + + it("removes components", () => { + const e = world.createEntity(); + world.addComponent(e, "Velocity", { dx: 1, dy: 0 }); + world.removeComponent(e, "Velocity"); + expect(world.hasComponent(e, "Velocity")).toBe(false); + }); + + it("queries entities by component set", () => { + const e1 = world.createEntity(); + const e2 = world.createEntity(); + world.addComponent(e1, "Position", { x: 0, y: 0 }); + world.addComponent(e1, "Sprite", { src: "p1.png" }); + world.addComponent(e2, "Position", { x: 5, y: 5 }); + + const withPos = world.query("Position"); + const withBoth = world.query("Position", "Sprite"); + + expect(withPos).toContain(e1); + expect(withPos).toContain(e2); + expect(withBoth).toContain(e1); + expect(withBoth).not.toContain(e2); + }); + + it("destroys entity and cleans components", () => { + const e = world.createEntity(); + world.addComponent(e, "Position", { x: 0, y: 0 }); + world.destroyEntity(e); + expect(world.hasComponent(e, "Position")).toBe(false); + expect(world.query("Position")).not.toContain(e); + }); +}); diff --git a/src/engine/ecs.ts b/src/engine/ecs.ts new file mode 100644 index 0000000..e400ddb --- /dev/null +++ b/src/engine/ecs.ts @@ -0,0 +1,71 @@ +/** + * Minimal ECS core for ZAMNY browser edition. + * Entities are numbers. Components are plain objects. + * Systems iterate over entities that have required components. + */ + +export type Entity = number; + +export interface Component { + [key: string]: any; +} + +export class World { + private nextId = 1; + private entities: Map> = new Map(); + private components: Map> = new Map(); + + createEntity(): Entity { + const id = this.nextId++; + this.entities.set(id, new Set()); + return id; + } + + addComponent(entity: Entity, name: string, data: T): T { + if (!this.components.has(name)) { + this.components.set(name, new Map()); + } + this.components.get(name)!.set(entity, data); + this.entities.get(entity)!.add(name); + return data; + } + + getComponent( + entity: Entity, + name: string, + ): T | undefined { + return this.components.get(name)?.get(entity) as T | undefined; + } + + hasComponent(entity: Entity, name: string): boolean { + return this.entities.get(entity)?.has(name) ?? false; + } + + removeComponent(entity: Entity, name: string): void { + this.components.get(name)?.delete(entity); + this.entities.get(entity)?.delete(name); + } + + query(...componentNames: string[]): Entity[] { + const result: Entity[] = []; + for (const [entity, comps] of this.entities) { + if (componentNames.every((c) => comps.has(c))) { + result.push(entity); + } + } + return result; + } + + destroyEntity(entity: Entity): void { + const comps = this.entities.get(entity); + if (!comps) return; + for (const name of comps) { + this.components.get(name)?.delete(entity); + } + this.entities.delete(entity); + } +} + +export abstract class System { + abstract update(world: World, dt: number): void; +} diff --git a/src/main.ts b/src/main.ts new file mode 100644 index 0000000..022461b --- /dev/null +++ b/src/main.ts @@ -0,0 +1,39 @@ +import { World } from "./engine/ecs"; +import { InputSystem } from "./systems/InputSystem"; +import { RenderSystem } from "./systems/RenderSystem"; +import { PhysicsSystem } from "./systems/PhysicsSystem"; + +/** + * ZAMNY Browser Edition - main entry. + * 60 FPS game loop. ECS + systems. + * TODO: add nickname UI, network client, level loader. + */ + +const canvas = document.createElement("canvas"); +canvas.width = 800; +canvas.height = 600; +document.body.appendChild(canvas); + +const world = new World(); +const input = new InputSystem(); +const render = new RenderSystem(canvas); +const physics = new PhysicsSystem(); + +const systems = [input, physics, render]; + +let last = performance.now(); + +function loop(now: number) { + const dt = (now - last) / 1000; + last = now; + + for (const sys of systems) { + sys.update(world, dt); + } + + requestAnimationFrame(loop); +} + +requestAnimationFrame(loop); + +console.log("[ZAMNY] Game loop started. ECS ready."); diff --git a/src/style.css b/src/style.css new file mode 100644 index 0000000..527d4fb --- /dev/null +++ b/src/style.css @@ -0,0 +1,296 @@ +:root { + --text: #6b6375; + --text-h: #08060d; + --bg: #fff; + --border: #e5e4e7; + --code-bg: #f4f3ec; + --accent: #aa3bff; + --accent-bg: rgba(170, 59, 255, 0.1); + --accent-border: rgba(170, 59, 255, 0.5); + --social-bg: rgba(244, 243, 236, 0.5); + --shadow: + rgba(0, 0, 0, 0.1) 0 10px 15px -3px, rgba(0, 0, 0, 0.05) 0 4px 6px -2px; + + --sans: system-ui, 'Segoe UI', Roboto, sans-serif; + --heading: system-ui, 'Segoe UI', Roboto, sans-serif; + --mono: ui-monospace, Consolas, monospace; + + font: 18px/145% var(--sans); + letter-spacing: 0.18px; + color-scheme: light dark; + color: var(--text); + background: var(--bg); + font-synthesis: none; + text-rendering: optimizeLegibility; + -webkit-font-smoothing: antialiased; + -moz-osx-font-smoothing: grayscale; + + @media (max-width: 1024px) { + font-size: 16px; + } +} + +@media (prefers-color-scheme: dark) { + :root { + --text: #9ca3af; + --text-h: #f3f4f6; + --bg: #16171d; + --border: #2e303a; + --code-bg: #1f2028; + --accent: #c084fc; + --accent-bg: rgba(192, 132, 252, 0.15); + --accent-border: rgba(192, 132, 252, 0.5); + --social-bg: rgba(47, 48, 58, 0.5); + --shadow: + rgba(0, 0, 0, 0.4) 0 10px 15px -3px, rgba(0, 0, 0, 0.25) 0 4px 6px -2px; + } + + #social .button-icon { + filter: invert(1) brightness(2); + } +} + +body { + margin: 0; +} + +h1, +h2 { + font-family: var(--heading); + font-weight: 500; + color: var(--text-h); +} + +h1 { + font-size: 56px; + letter-spacing: -1.68px; + margin: 32px 0; + @media (max-width: 1024px) { + font-size: 36px; + margin: 20px 0; + } +} +h2 { + font-size: 24px; + line-height: 118%; + letter-spacing: -0.24px; + margin: 0 0 8px; + @media (max-width: 1024px) { + font-size: 20px; + } +} +p { + margin: 0; +} + +code, +.counter { + font-family: var(--mono); + display: inline-flex; + border-radius: 4px; + color: var(--text-h); +} + +code { + font-size: 15px; + line-height: 135%; + padding: 4px 8px; + background: var(--code-bg); +} + +.counter { + font-size: 16px; + padding: 5px 10px; + border-radius: 5px; + color: var(--accent); + background: var(--accent-bg); + border: 2px solid transparent; + transition: border-color 0.3s; + margin-bottom: 24px; + + &:hover { + border-color: var(--accent-border); + } + &:focus-visible { + outline: 2px solid var(--accent); + outline-offset: 2px; + } +} + +.hero { + position: relative; + + .base, + .framework, + .vite { + inset-inline: 0; + margin: 0 auto; + } + + .base { + width: 170px; + position: relative; + z-index: 0; + } + + .framework, + .vite { + position: absolute; + } + + .framework { + z-index: 1; + top: 34px; + height: 28px; + transform: perspective(2000px) rotateZ(300deg) rotateX(44deg) rotateY(39deg) + scale(1.4); + } + + .vite { + z-index: 0; + top: 107px; + height: 26px; + width: auto; + transform: perspective(2000px) rotateZ(300deg) rotateX(40deg) rotateY(39deg) + scale(0.8); + } +} + +#app { + width: 1126px; + max-width: 100%; + margin: 0 auto; + text-align: center; + border-inline: 1px solid var(--border); + min-height: 100svh; + display: flex; + flex-direction: column; + box-sizing: border-box; +} + +#center { + display: flex; + flex-direction: column; + gap: 25px; + place-content: center; + place-items: center; + flex-grow: 1; + + @media (max-width: 1024px) { + padding: 32px 20px 24px; + gap: 18px; + } +} + +#next-steps { + display: flex; + border-top: 1px solid var(--border); + text-align: left; + + & > div { + flex: 1 1 0; + padding: 32px; + @media (max-width: 1024px) { + padding: 24px 20px; + } + } + + .icon { + margin-bottom: 16px; + width: 22px; + height: 22px; + } + + @media (max-width: 1024px) { + flex-direction: column; + text-align: center; + } +} + +#docs { + border-right: 1px solid var(--border); + + @media (max-width: 1024px) { + border-right: none; + border-bottom: 1px solid var(--border); + } +} + +#next-steps ul { + list-style: none; + padding: 0; + display: flex; + gap: 8px; + margin: 32px 0 0; + + .logo { + height: 18px; + } + + a { + color: var(--text-h); + font-size: 16px; + border-radius: 6px; + background: var(--social-bg); + display: flex; + padding: 6px 12px; + align-items: center; + gap: 8px; + text-decoration: none; + transition: box-shadow 0.3s; + + &:hover { + box-shadow: var(--shadow); + } + .button-icon { + height: 18px; + width: 18px; + } + } + + @media (max-width: 1024px) { + margin-top: 20px; + flex-wrap: wrap; + justify-content: center; + + li { + flex: 1 1 calc(50% - 8px); + } + + a { + width: 100%; + justify-content: center; + box-sizing: border-box; + } + } +} + +#spacer { + height: 88px; + border-top: 1px solid var(--border); + @media (max-width: 1024px) { + height: 48px; + } +} + +.ticks { + position: relative; + width: 100%; + + &::before, + &::after { + content: ''; + position: absolute; + top: -4.5px; + border: 5px solid transparent; + } + + &::before { + left: 0; + border-left-color: var(--border); + } + &::after { + right: 0; + border-right-color: var(--border); + } +} diff --git a/src/systems/InputSystem.ts b/src/systems/InputSystem.ts new file mode 100644 index 0000000..9053878 --- /dev/null +++ b/src/systems/InputSystem.ts @@ -0,0 +1,23 @@ +import { World, System } from "../engine/ecs"; + +/** + * InputSystem - captures keyboard + touch input. + * TODO: map to actions (move, shoot, use item). + */ +export class InputSystem extends System { + private keys = new Set(); + + constructor() { + super(); + window.addEventListener("keydown", (e) => this.keys.add(e.key)); + window.addEventListener("keyup", (e) => this.keys.delete(e.key)); + } + + isPressed(key: string): boolean { + return this.keys.has(key); + } + + update(world: World, dt: number): void { + // TODO: translate key state into movement / action components + } +} diff --git a/src/systems/PhysicsSystem.ts b/src/systems/PhysicsSystem.ts new file mode 100644 index 0000000..ee3d769 --- /dev/null +++ b/src/systems/PhysicsSystem.ts @@ -0,0 +1,12 @@ +import { World, System } from "../engine/ecs"; + +/** + * PhysicsSystem - movement + collision. + * TODO: tile collision, enemy pushback, weapon hitboxes. + */ +export class PhysicsSystem extends System { + update(world: World, dt: number): void { + // TODO: integrate velocity into position + // TODO: resolve collisions against level geometry + } +} diff --git a/src/systems/RenderSystem.ts b/src/systems/RenderSystem.ts new file mode 100644 index 0000000..a3aadc7 --- /dev/null +++ b/src/systems/RenderSystem.ts @@ -0,0 +1,24 @@ +import { World, System } from "../engine/ecs"; + +/** + * RenderSystem - draws entities with Position + Sprite to canvas. + * TODO: implement camera, sprite batching, neighbor name labels. + */ +export class RenderSystem extends System { + private ctx: CanvasRenderingContext2D; + private canvas: HTMLCanvasElement; + + constructor(canvas: HTMLCanvasElement) { + super(); + this.canvas = canvas; + this.ctx = canvas.getContext("2d")!; + } + + update(world: World, dt: number): void { + this.ctx.fillStyle = "#0a0a0a"; + this.ctx.fillRect(0, 0, this.canvas.width, this.canvas.height); + + // TODO: query entities with Position + Sprite, draw them + // TODO: draw nickname labels above co-op player + } +} diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..1ab38c8 --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,23 @@ +{ + "compilerOptions": { + "target": "es2023", + "module": "esnext", + "lib": ["ES2023", "DOM"], + "types": ["vite/client"], + "skipLibCheck": true, + + /* Bundler mode */ + "moduleResolution": "bundler", + "allowImportingTsExtensions": true, + "verbatimModuleSyntax": true, + "moduleDetection": "force", + "noEmit": true, + + /* Linting */ + "noUnusedLocals": true, + "noUnusedParameters": true, + "erasableSyntaxOnly": true, + "noFallthroughCasesInSwitch": true + }, + "include": ["src"] +}