JSFiddle - React, Tailwind, and code Playground

by dledle2

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>3D Pinball Space Cadet Clone (Demo)</title>
  <style>
    body { margin: 0; overflow: hidden; background: #000; }
    canvas { display: block; }
  </style>
</head>
<body>
  <!-- Inline SVG assets -->
  <svg style="display:none;">
    <symbol id="background" viewBox="0 0 800 600">
      <rect width="800" height="600" fill="#111" />
      <!-- add stars or details here -->
    </symbol>
    <symbol id="ball" viewBox="0 0 20 20">
      <circle cx="10" cy="10" r="10" fill="#ff0" />
    </symbol>
    <symbol id="bumper" viewBox="0 0 60 30">
      <rect width="60" height="30" rx="15" fill="#0af" />
    </symbol>
  </svg>

  <canvas id="gameCanvas" width="800" height="600"></canvas>

  <script type="module">
  // --- Vector ---
  class Vec {
    constructor(x, y) { this.x = x; this.y = y; }
    add(v) { return new Vec(this.x + v.x, this.y + v.y); }
    mul(s) { return new Vec(this.x * s, this.y * s); }
    norm() { const m = Math.hypot(this.x, this.y); return new Vec(this.x/m, this.y/m); }
  }

  // --- Ball ---
  class Ball {
    constructor(pos, vel, img) {
      this.pos = pos; this.vel = vel; this.radius = 10; this.img = img;
    }
    update(dt) {
      this.vel.y += 300 * dt;
      this.pos = this.pos.add(this.vel.mul(dt));
    }
    draw(ctx) {
      ctx.drawImage(this.img, this.pos.x - this.radius, this.pos.y - this.radius, this.radius*2, this.radius*2);
    }
  }

  // --- Bumper ---
  class Bumper {
    constructor(pos, img) { this.pos = pos; this.img = img; this.size = {w:60, h:30}; }
    draw(ctx) {
      ctx.drawImage(this.img, this.pos.x - this.size.w/2, this.pos.y - this.size.h/2, this.size.w, this.size.h);
    }
    collide(ball) {
      const dx = ball.pos.x - this.pos.x;
      const dy = ball.pos.y - this.pos.y;
      if (Math.abs(dx) <= this.size.w/2 + ball.radius && Math.abs(dy) <= this.size.h/2 +...