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No:49672

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Shooting Game
Developer User21129｜Date and time 24/3/6 4:14:44
Build time 11.411 sec｜Game capacity 3.277KB｜

Script

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[PR]現在の人気グッズランキング

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

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Juego de Disparos</title>
</head>
<body>
    <canvas id="gameCanvas" width="800" height="600"></canvas>
    
    <script>
        const canvas = document.getElementById('gameCanvas');
        const ctx = canvas.getContext('2d');

let playerX = canvas.width / 2;
        let playerY = canvas.height - 50;
        let playerWidth = 50;
        let playerHeight = 50;

let bulletX = playerX + playerWidth / 2;
        let bulletY = playerY;
        let bulletRadius = 5;
        let bulletSpeed = 5;
        let bulletFired = false;

let enemyX = Math.random() * (canvas.width - 50);
        let enemyY = 0;
        let enemyWidth = 50;
        let enemyHeight = 50;
        let enemySpeed = 2;

function drawPlayer() {
            ctx.fillStyle = 'blue';
            ctx.fillRect(playerX, playerY, playerWidth, playerHeight);
        }

function drawBullet() {
            if (bulletFired) {
                ctx.beginPath();
                ctx.arc(bulletX, bulletY, bulletRadius, 0, Math.PI * 2);
                ctx.fillStyle = 'red';
                ctx.fill();
            }
        }

function drawEnemy() {
            ctx.fillStyle = 'green';
            ctx.fillRect(enemyX, enemyY, enemyWidth, enemyHeight);
        }

function moveBullet() {
            bulletY -= bulletSpeed;
            if (bulletY < 0) {
                bulletFired = false;
                bulletX = playerX + playerWidth / 2;
                bulletY = playerY;
            }
        }

function moveEnemy() {
            enemyY += enemySpeed;
            if (enemyY > canvas.height) {
                enemyX = Math.random() * (canvas.width - 50);
                enemyY = 0;
            }
        }

function checkCollision() {
            if (bulletFired &&
                bulletX > enemyX &&
                bulletX < enemyX + enemyWidth &&
                bulletY > enemyY &&
                bulletY < enemyY + enemyHeight) {
                enemyX = Math.random() * (canvas.width - 50);
                enemyY = 0;
                bulletFired = false;
                bulletX = playerX + playerWidth / 2;
                bulletY = playerY;
            }
        }

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

drawPlayer();
            drawBullet();
            drawEnemy();

moveBullet();
            moveEnemy();

checkCollision();

requestAnimationFrame(gameLoop);
        }

document.addEventListener('keydown', (e) => {
            if (e.key === ' ' && !bulletFired) {
                bulletFired = true;
                bulletX = playerX + playerWidth / 2;
                bulletY = playerY;
            }

if (e.key === 'ArrowLeft' && playerX > 0) {
                playerX -= 10;
            }

if (e.key === 'ArrowRight' && playerX < canvas.width - playerWidth) {
                playerX += 10;
            }
        });

gameLoop();
    </script>
</body>
</html>