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No:47741

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particle
Developer User20617｜Date and time 24/2/29 10:24:54
Build time 10.757 sec｜Game capacity 2.652KB｜

Script

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

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Particle Game</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: #222;
        }

#player {
            position: absolute;
            width: 50px;
            height: 50px;
            background-color: blue;
        }

#particle {
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: red;
        }
    </style>
</head>
<body>
    <div id="player"></div>
    <div id="particle"></div>

function randomPosition() {
            return Math.floor(Math.random() * 100) + 1;
        }

function checkCollision() {
            const playerRect = player.getBoundingClientRect();
            const particleRect = particle.getBoundingClientRect();

if (playerRect.left < particleRect.right && playerRect.right > particleRect.left &&
                playerRect.top < particleRect.bottom && playerRect.bottom > particleRect.top) {
                score++;
                particle.style.left = randomPosition() + 'vw';
                particle.style.top = randomPosition() + 'vh';
            }
        }

function updateScore() {
            document.body.innerText = 'Score: ' + score;
        }

document.addEventListener('keydown', function(e) {
            const playerRect = player.getBoundingClientRect();

if (e.key === 'ArrowUp' && playerRect.top > 0) {
                player.style.top = playerRect.top - 10 + 'px';
            } else if (e.key === 'ArrowDown' && playerRect.bottom < window.innerHeight) {
                player.style.top = playerRect.top + 10 + 'px';
            } else if (e.key === 'ArrowLeft' && playerRect.left > 0) {
                player.style.left = playerRect.left - 10 + 'px';
            } else if (e.key === 'ArrowRight' && playerRect.right < window.innerWidth) {
                player.style.left = playerRect.left + 10 + 'px';
            }

checkCollision();
            updateScore();
        });

// Initial position for player and particle
        player.style.top = '50vh';
        player.style.left = '50vw';
        particle.style.top = randomPosition() + 'vh';
        particle.style.left = randomPosition() + 'vw';
    </script>
</body>
</html>
```