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Reactive particles
Developer User12958｜Date and time 23/11/30 8:51:44
Build time 52.386 sec｜Game capacity 2.401KB｜

Script

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<!DOCTYPE html>
<html>
<head>
  <title>Reactive Particles Game</title>
  <style>
    canvas {
      border: 1px solid black;
    }
  </style>
</head>
<body>
  <canvas id="canvas"></canvas>
  
  <script>
    // Define particle class
    class Particle {
      constructor(x, y, color) {
        this.x = x;
        this.y = y;
        this.color = color;
        this.radius = Math.random() * 20 + 5;
        this.dx = Math.random() * 6 - 3;
        this.dy = Math.random() * 6 - 3;
      }

draw(context) {
        context.beginPath();
        context.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
        context.fillStyle = this.color;
        context.fill();
      }

update() {
        this.x += this.dx;
        this.y += this.dy;
        this.radius -= 0.05;
      }

isAlive() {
        return this.radius > 0;
      }
    }
    
    // Initialize canvas
    const canvas = document.getElementById('canvas');
    const context = canvas.getContext('2d');
    
    // Set canvas dimensions
    canvas.width = window.innerWidth;
    canvas.height = window.innerHeight;
    
    // Track user touches on the canvas
    canvas.addEventListener('touchstart', handleTouchStart);
  
    // Start the game
    let particles = [];
    let gameLoopId = requestAnimationFrame(gameLoop);
  
    function handleTouchStart(event) {
      // Create particles at touch position
      const { clientX, clientY } = event.touches[0];
      const color = getRandomColor();
      for (let i = 0; i < 10; i++) {
        particles.push(new Particle(clientX, clientY, color));
      }
    }