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No:19249

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particle
Developer User8488｜Date and time 23/10/2 7:01:41
Build time 7.82 sec｜Game capacity 2.296KB｜

Script

Sure! Here's an example of a simple game implemented using a single HTML file with JavaScript, enclosed in script tags.

This game is a simple particle effect where particles are spawned and move outwards in a circular fashion when the user clicks on the canvas. The particles gradually fade away as their size decreases. You can view and play the game directly in a web browser on your smartphone.

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[PR]現在の売れ筋Kindle本ランキング

Click here for free DL of the app version that can save data.

Sure! Here's an example of a simple game implemented using a single HTML file with JavaScript, enclosed in script tags.

```html
<!DOCTYPE html>
<html>
<head>
  <title>Particle Game</title>
  <style>
    #canvas {
      background-color: black;
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
    }
  </style>
</head>
<body>
  <canvas id="canvas"></canvas>
  <script>
    const canvas = document.getElementById("canvas");
    const ctx = canvas.getContext("2d");

let particles = [];

canvas.width = window.innerWidth;
    canvas.height = window.innerHeight;

class Particle {
      constructor(x, y, radius, color, velocity) {
        this.x = x;
        this.y = y;
        this.radius = radius;
        this.color = color;
        this.velocity = velocity;
      }

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

update() {
        this.x += this.velocity.x;
        this.y += this.velocity.y;
        this.draw();
      }
    }

function animate() {
      ctx.clearRect(0, 0, canvas.width, canvas.height);

particles.forEach((particle, index) => {
        particle.update();

if (particle.radius <= 0.2) {
          particles.splice(index, 1);
        }
      });

requestAnimationFrame(animate);
    }

canvas.addEventListener("click", (event) => {
      spawnParticles(event.clientX, event.clientY);
    });

animate();
  </script>
</body>
</html>
```