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Shooting Game
Developer User21006｜Date and time 24/3/4 12:29:35
Build time 11.476 sec｜Game capacity 2.565KB｜

Script

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<!DOCTYPE html>
<html>
<head>
    <title>Shooting Game</title>
    <style>
        canvas {
            border: 1px solid black;
            display: block;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="400" height="400"></canvas>
    
    <script>
        const canvas = document.getElementById('gameCanvas');
        const ctx = canvas.getContext('2d');
        
        let playerX = canvas.width / 2;
        let playerY = canvas.height - 30;
        let playerWidth = 20;
        let playerHeight = 20;
        
        let bullets = [];
        let bulletWidth = 5;
        let bulletHeight = 10;
        
        let enemyX = Math.random() * (canvas.width - 20);
        let enemyY = 10;
        let enemyWidth = 20;
        let enemyHeight = 20;
        
        function drawPlayer() {
            ctx.fillStyle = 'blue';
            ctx.fillRect(playerX, playerY, playerWidth, playerHeight);
        }
        
        function drawBullets() {
            ctx.fillStyle = 'red';
            bullets.forEach(bullet => {
                ctx.fillRect(bullet.x, bullet.y, bulletWidth, bulletHeight);
            });
        }
        
        function drawEnemy() {
            ctx.fillStyle = 'green';
            ctx.fillRect(enemyX, enemyY, enemyWidth, enemyHeight);
        }
        
        function updateGameArea() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            drawPlayer();
            drawBullets();
            drawEnemy();
            
            bullets = bullets.filter(bullet => bullet.y > 0);
            bullets.forEach(bullet => {
                bullet.y -= 5;
            });
            
            if (bullets.length > 0) {
                if (bullets[0].y <= enemyY + enemyHeight && bullets[0].x > enemyX && bullets[0].x < enemyX + enemyWidth) {
                    enemyX = Math.random() * (canvas.width - 20);
                    enemyY = 10;
                }
            }
        }
        
        function keyDownHandler(e) {
            if (e.key === 'ArrowLeft' && playerX > 0) {
                playerX -= 5;
            } else if (e.key === 'ArrowRight' && playerX < canvas.width - playerWidth) {
                playerX += 5;
            } else if (e.key === ' ' && bullets.length < 10) {
                bullets.push({x: playerX + playerWidth / 2, y: playerY});
            }
        }
        
        setInterval(updateGameArea, 20);
        
        document.addEventListener('keydown', keyDownHandler);
    </script>
</body>
</html>