1、安装cursor：略过

2、登录cursor：略过

3、在右侧chat输入：用JS创建平台跳跃游戏，点击send

4、生成代码，并保存代码

const canvas = document.getElementById('gameCanvas');
const ctx = canvas.getContext('2d');

// 加载玩家图片
const playerImage = new Image();
playerImage.src = 'player.png';  // 请确保在同一目录下有 player.png 文件

// 玩家属性
const player = {
    x: 100,
    y: 200,
    width: 30,
    height: 30,
    speed: 5,
    jumpForce: 12,
    gravity: 0.5,
    velocityY: 0,
    isJumping: false
};

// 平台数组
const platforms = [
    { x: 0, y: 350, width: 800, height: 50 },    // 地面
    { x: 300, y: 250, width: 200, height: 20 },  // 平台1
    { x: 100, y: 150, width: 200, height: 20 },  // 平台2
    { x: 500, y: 200, width: 200, height: 20 }   // 平台3
];

// 键盘控制
const keys = {
    left: false,
    right: false,
    up: false
};

// 事件监听
document.addEventListener('keydown', (e) => {
    if (e.key === 'ArrowLeft') keys.left = true;
    if (e.key === 'ArrowRight') keys.right = true;
    if (e.key === 'ArrowUp' && !player.isJumping) {
        keys.up = true;
        player.isJumping = true;
        player.velocityY = -player.jumpForce;
    }
});

document.addEventListener('keyup', (e) => {
    if (e.key === 'ArrowLeft') keys.left = false;
    if (e.key === 'ArrowRight') keys.right = false;
    if (e.key === 'ArrowUp') keys.up = false;
});

// 碰撞检测
function checkCollision(rect1, rect2) {
    return rect1.x < rect2.x + rect2.width &&
           rect1.x + rect1.width > rect2.x &&
           rect1.y < rect2.y + rect2.height &&
           rect1.y + rect1.height > rect2.y;
}

// 更新游戏状态
function update() {
    // 水平移动
    if (keys.left) player.x -= player.speed;
    if (keys.right) player.x += player.speed;

    // 应用重力
    player.velocityY += player.gravity;
    player.y += player.velocityY;

    // 检查与平台的碰撞
    player.isJumping = true;
    for (let platform of platforms) {
        if (checkCollision(player, platform)) {
            if (player.velocityY > 0) {
                player.y = platform.y - player.height;
                player.velocityY = 0;
                player.isJumping = false;
            }
        }
    }

    // 边界检查
    if (player.x < 0) player.x = 0;
    if (player.x + player.width > canvas.width) player.x = canvas.width - player.width;
    if (player.y + player.height > canvas.height) {
        player.y = canvas.height - player.height;
        player.velocityY = 0;
        player.isJumping = false;
    }
}

// 绘制游戏画面
function draw() {
    // 清空画布
    ctx.clearRect(0, 0, canvas.width, canvas.height);

    // 绘制玩家
    ctx.fillStyle = '#FF0000';
    ctx.fillRect(player.x, player.y, player.width, player.height);

    // 绘制平台
    ctx.fillStyle = '#00FF00';
    platforms.forEach(platform => {
        ctx.fillRect(platform.x, platform.y, platform.width, platform.height);
    });
}

// 游戏主循环
function gameLoop() {
    update();
    draw();
    requestAnimationFrame(gameLoop);
}

// 开始游戏
gameLoop(); 

5、运行index.html

总结：跳跃反应流畅