【JavaScript】飞机大战简单网页版(源码下载)

news2024/10/7 16:20:52

文章目录

    • 一、效果演示
      • 设计思路
    • 二、鼠标版飞机大战代码展示
      • 1.HTML结构代码
      • 2.CSS样式代码
      • 3.JavaScript代码
        • js.js文件
        • plane.js文件
    • 三、键盘版飞机大战代码展示
      • 1.HTML结构代码
      • 2.CSS样式代码
      • 3.JavaScript代码
    • 四、代码资源分享

一、效果演示

利用html,css,js制作出飞机大战的简易版
需要代码的小伙伴可以在文章末尾资源自行下载,下载打开运行在浏览器即可游戏,本篇资源分享分为两个版本,一个是键盘版本(awsd移动和k攻击),一个是鼠标移动版

设计思路

  1. 在游戏进行界面中,通过鼠标操控自己方飞机(仅一架),在初始化时就进行无限制的匀速发射子弹。

  2. 在游戏进行界面中,左上方有得到的分数显示,敌方飞机有三种类型(小,中,大),他们的形状,大小,击落的分数各不同,以合适的速度控制它们的数量,以及运动的速度。

  3. 在进行游戏的过程中点击鼠标左键会进入游戏暂停界面,有重新开始,回到主页,继续三个选项。当游戏结束时,会弹出游戏分数框,有继续按钮,点击回到主页。

请添加图片描述

二、鼠标版飞机大战代码展示

1.HTML结构代码

<body>
    <div id="plane">
        <span>分数:<strong style="font-weight: normal;">0</strong></span>
    </div>
    <script type="text/javascript" src="js.js"></script>
    <script type="text/javascript" src="plane.js"></script>
</body>

2.CSS样式代码

<style type="text/css">
        *{
            padding:0px;
            margin:0px;
        }
        #plane{
            width: 320px;
            height: 568px;
            background: url(img/background.png);
            position: relative;
            margin:50px auto 0;
            cursor: none;
            overflow: hidden;
        }
        #plane span{
            position: absolute;
            right:10px;
            top:5px;
        }
    </style>

3.JavaScript代码

js.js文件

//缓冲运动
function getStyle(obj, attr) {
    if (obj.currentStyle) {
        return obj.currentStyle[attr];
    } else {
        return getComputedStyle(obj)[attr];
    }
}


function startMove(obj, json, fn) {
    var cur = 0;
    var timer = null;
    var speed = null;
    clearInterval(obj.timer)
    obj.timer = setInterval(function() {
        var bstop = true;
        for (var attr in json) {
            if (attr == 'opacity') {//求初始值
                cur = Math.round(getStyle(obj, attr) * 100);
            } else {
                cur = parseInt(getStyle(obj, attr));
            }
            speed = (json[attr] - cur) / 8;
            speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed); 
            if (cur != json[attr]) {
                bstop = false;
                if (attr == 'opacity') {
                    obj.style[attr] = (cur + speed) / 100;
                    obj.style.filter = 'alpha(opacity=' + (cur + speed) + ')';
                } else {
                    obj.style[attr] = cur + speed + 'px';
                }
            }
        }
        if (bstop) {
            clearInterval(obj.timer);
            fn && fn();
        }
    }, 30);
}



//通过类名获取元素
function getClass(oClass, oParent) {
    var oP = oParent || document;
    var arr = [];
    var aEle = oP.getElementsByTagName('*');
    var reg = new RegExp('\\b' + oClass + '\\b');
    for (var i = 0; i < aEle.length; i++) {
        if (reg.test(aEle[i].className)) {
            arr.push(aEle[i]);
        }
    }
    return arr;
}


//取任意的随机数,范围是min-max之间
function getrandom(min,max){
    return Math.floor(Math.random()*(max-min+1))+min;
}

plane.js文件

//我方飞机构造函数
var planeBox = document.getElementById('plane');
var planescore = document.getElementsByTagName('strong')[0];
var zscore = 0;


function Myplane(w, h, imgsrc, boomsrc) {
    this.w = w;
    this.h = h;
    this.imgsrc = imgsrc;
    this.boomsrc = boomsrc;
    this.createMyplane();
}


//创建我方飞机
Myplane.prototype.createMyplane = function() {
    this.plane = document.createElement('img');
    this.plane.src = this.imgsrc;
    this.plane.style.cssText = 'width:' + this.w + 'px;height:' + this.h + 'px;position:absolute;left:' + (planeBox.offsetWidth - this.w) / 2 + 'px;top:' + (planeBox.offsetHeight - this.h) + 'px;';
    planeBox.appendChild(this.plane);
    this.move();
    this.shoot();
};


//我方飞机移动
Myplane.prototype.move = function() {
    var that = this;
    document.onmousemove = function(ev) {
        var ev = ev || window.event;
        that.oLeft = ev.clientX - plane.offsetLeft - that.w / 2;
        that.oTop = ev.clientY - plane.offsetTop - that.h / 2;
        if (that.oLeft < 0) {
            that.oLeft = 0;
        } else if (that.oLeft >= plane.offsetWidth - that.w) {
            that.oLeft = plane.offsetWidth - that.w
        }


        if (that.oTop < 0) {
            that.oTop = 0;
        } else if (that.oTop >= plane.offsetHeight - that.h) {
            that.oTop = plane.offsetHeight - that.h;
        }


        that.plane.style.left = that.oLeft + 'px';
        that.plane.style.top = that.oTop + 'px';
        return false;
    }
};
//我方飞机发射子弹
Myplane.prototype.shoot = function() {
    var that = this;
    document.onmousedown = function(ev) {
        var ev = ev || window.event;
        if (ev.which == 1) {
            bulletshoot();
            that.timer = setInterval(bulletshoot, 200);


            function bulletshoot() {
                var bullet = new Bullet(that.plane.offsetLeft + that.w / 2 - 3, that.plane.offsetTop - 14, 6, 14, 'img/bullet.png');
            }
        }
        return false;
    }
    document.onmouseup = function(ev) {
        var ev = ev || window.event;
        if (ev.which == 1) {
            clearInterval(that.timer);
        }
    }
    document.oncontextmenu = function() {
        return false;
    }
};




//子弹的构造函数
function Bullet(x, y, w, h, imgsrc) {
    this.x = x; //位置
    this.y = y;
    this.w = w; //尺寸
    this.h = h;
    this.imgsrc = imgsrc;
    this.createBullet();
}


//创建子弹
Bullet.prototype.createBullet = function() {
    this.bullet = document.createElement('img');
    this.bullet.src = this.imgsrc;
    this.bullet.style.cssText = 'width:' + this.w + 'px;height:' + this.h + 'px;position:absolute;left:' + this.x + 'px;top:' + this.y + 'px;';
    planeBox.appendChild(this.bullet);
    this.move();
}


//子弹移动
Bullet.prototype.move = function() {
    var that = this;
    this.timer = setInterval(function() {
        that.y -= 5;
        if (that.y <= -that.h) {
            clearInterval(that.timer);
            planeBox.removeChild(that.bullet);
        }
        that.bullet.style.top = that.y + 'px';
        that.hit();
    }, 20);
};


Bullet.prototype.hit = function() {
    var allEnemy = document.getElementsByClassName('planeEnemy');
    for (var i = 0; i < allEnemy.length; i++) {
        if ((this.x + this.w) >= allEnemy[i].offsetLeft && this.x <= (allEnemy[i].offsetLeft + allEnemy[i].offsetWidth) && this.y <= (allEnemy[i].offsetTop + allEnemy[i].offsetHeight)) {
            clearInterval(this.timer);
            try{


            planeBox.removeChild(this.bullet);
            }catch(e){


            }
            allEnemy[i].hp--;
            allEnemy[i].checkhp();
        }
    }
};



//敌方飞机的构造函数
function Enemyplane(x, y, w, h, imgsrc, boomsrc, speed, hp, score) {
    this.x = x; //位置
    this.y = y;
    this.w = w; //尺寸
    this.h = h;
    this.imgsrc = imgsrc;
    this.boomsrc = boomsrc;
    this.speed = speed;
    this.hp = hp;
    this.score = score;
    this.createEnemy();
}


//创建敌机
Enemyplane.prototype.createEnemy = function() {
    var that = this;
    this.enemy = document.createElement('img');
    this.enemy.src = this.imgsrc;
    this.enemy.className = 'planeEnemy'; //通过设置类名,方便后面获取
    this.enemy.style.cssText = 'width:' + this.w + 'px;height:' + this.h + 'px;position:absolute;left:' + this.x + 'px;top:' + this.y + 'px;';
    planeBox.appendChild(this.enemy);
    this.enemy.hp = this.hp; //变化的
    this.enemy.score = this.score; //变化的
    this.enemy.checkhp = function() { //this==this.enemy 
        if (this.hp <= 0) {
            clearInterval(this.timer);
            this.className = '';
            this.src = that.boomsrc;
            setTimeout(function() {
                planeBox.removeChild(that.enemy);
            }, 1000);
            zscore += this.score
            planescore.innerHTML = zscore;
        }
    }
    this.move();
}


Enemyplane.prototype.move = function() {
    var that = this;
    this.enemy.timer = setInterval(function() {
        that.y += that.speed;
        if (that.y >= planeBox.offsetHeight) {
            clearInterval(that.enemy.timer);
            planeBox.removeChild(that.enemy);
        }
        that.enemy.style.top = that.y + 'px';
        that.enemyhit();
    }, 50);
}



Enemyplane.prototype.enemyhit = function() {
    if ((this.y + this.h) >= myplane.oTop && this.y <= (myplane.oTop + myplane.h) && (this.x + this.w) > myplane.oLeft && this.x <= (myplane.oLeft + myplane.w)) {
        var allEnemy = document.getElementsByClassName('planeEnemy');
        for (var i = 0; i < allEnemy.length; i++) {
            clearInterval(allEnemy[i].timer);
        }
        clearInterval(timer);
        document.onmousedown = null;
        document.onmousemove = null;
        myplane.plane.src = myplane.boomsrc;
        setTimeout(function() {
            alert('game over!!');
            window.location.reload(); //重刷新
        }, 3000);
    }
}


var myplane = new Myplane(66, 80, 'img/myplane.gif', 'img/myplaneBoom.gif');


for (var i = 0; i < getrandom(1, 2); i++) { //随机创建各类飞机
    var timer = setInterval(function() {
        var num = getrandom(1, 20); //1-15 小飞机  16-20 中飞机  20打飞机
        if (num >= 1 && num < 15) {
            var enemy = new Enemyplane(getrandom(0, planeBox.offsetWidth - 34), -24, 34, 24, 'img/smallplane.png', 'img/smallplaneboom.gif', getrandom(3, 5), 1, 1);
        } else if (num >= 15 && num < 20) {
            var enemy = new Enemyplane(getrandom(0, planeBox.offsetWidth - 46), -60, 46, 60, 'img/midplane.png', 'img/midplaneboom.gif', getrandom(2, 4), 3, 5);
        } else if (num == 20) {
            var enemy = new Enemyplane(getrandom(0, planeBox.offsetWidth - 110), -164, 110, 164, 'img/bigplane.png', 'img/bigplaneboom.gif', getrandom(1, 2), 10, 10);
        }
    }, 1000)
}

三、键盘版飞机大战代码展示

1.HTML结构代码

<body>
    <div class="gamebox">
    	<span>分数:<em>0</em></span>
    </div>
    <script type="text/javascript" src="plane.js"></script>
</body>

2.CSS样式代码

 <style type="text/css">
    * {
        padding: 0px;
        margin: 0px;    
    }
    .gamebox{
    	width: 320px;
    	height:568px;
    	background: url(img/background.png) repeat-y;
    	margin:20px auto;
    	position: relative;
    	cursor: none;
    	overflow: hidden;
    }
    .gamebox span{
    	position: absolute;
    	right:10px;
    	top:10px;
    }
    .gamebox span em{
    	font-style: normal;
    }
    </style>

3.JavaScript代码

;
(function() {
    var gamebox = document.querySelector('.gamebox');
    var oEm = document.querySelector('em');
    var zscore = 0;
    //1.让背景运动起来
    var bgposition = 0;
    var bgtimer = setInterval(function() {
        bgposition += 2;
        gamebox.style.backgroundPosition = '0 ' + bgposition + 'px';
    }, 30);



    //2.我方飞机的构造函数
    function Myplane(w, h, x, y, imgurl, boomurl) { //w,h宽高 x,y位置  imgurl和boomurl我方飞机的图片路径
        this.w = w;
        this.h = h;
        this.x = x;
        this.y = y;
        this.imgurl = imgurl;
        this.boomurl = boomurl;
        this.createmyplane()
    }
    //2.1创建我方飞机
    Myplane.prototype.createmyplane = function() {
        this.myplaneimg = document.createElement('img');
        this.myplaneimg.src = this.imgurl;
        this.myplaneimg.style.cssText = `width:${this.w}px;height:${this.h}px;position:absolute;left:${this.x}px;top:${this.y}px;`;
        gamebox.appendChild(this.myplaneimg);
        //飞机创建完成,执行运动和发射子弹
        this.myplanemove();
        this.myplaneshoot();
    }
    //2.2键盘控制我方飞机移动
    Myplane.prototype.myplanemove = function() {
        var that = this;
        //方向定时器
        var uptimer = null,
            downtimer = null,
            lefttimer = null,
            righttimer = null;
        var uplock = true,
            downlock = true,
            leftlock = true,
            rightlock = true;
        document.addEventListener('keydown', movekey, false); //movekey:事件处理函数
        function movekey(ev) { //W:87 A:65 S:83 D:68  K:75
            var ev = ev || window.event;
            switch (ev.keyCode) {
                case 87:
                    moveup(); // 上
                    break;
                case 83:
                    movedown(); // 下
                    break;
                case 65:
                    moveleft(); // 左
                    break;
                case 68:
                    moveright(); // 右
                    break;
            }


            function moveup() {
                if (uplock) {
                    uplock = false;
                    clearInterval(downtimer);
                    uptimer = setInterval(function() {
                        that.y -= 4;
                        if (that.y <= 0) {
                            that.y = 0;
                        }
                        that.myplaneimg.style.top = that.y + 'px';
                    }, 30);
                }


            }


            function movedown() {
                if (downlock) {
                    downlock = false;
                    clearInterval(uptimer);
                    downtimer = setInterval(function() {
                        that.y += 4;
                        if (that.y >= gamebox.offsetHeight - that.h) {
                            that.y = gamebox.offsetHeight - that.h;
                        }
                        that.myplaneimg.style.top = that.y + 'px';
                    }, 30);
                }


            }


            function moveleft() {
                if (leftlock) {
                    leftlock = false;
                    clearInterval(righttimer);
                    lefttimer = setInterval(function() {
                        that.x -= 4;
                        if (that.x <= 0) {
                            that.x = 0;
                        }
                        that.myplaneimg.style.left = that.x + 'px';
                    }, 30);
                }


            }


            function moveright() {
                if (rightlock) {
                    rightlock = false;
                    clearInterval(lefttimer);
                    righttimer = setInterval(function() {
                        that.x += 4;
                        if (that.x >= gamebox.offsetWidth - that.w) {
                            that.x = gamebox.offsetWidth - that.w;
                        }
                        that.myplaneimg.style.left = that.x + 'px';
                    }, 30);
                }


            }


        }


        document.addEventListener('keyup', function(ev) {
            var ev = ev || window.event;
            if (ev.keyCode == 87) {
                clearInterval(uptimer);
                uplock=true;
            }


            if (ev.keyCode == 83) {
                clearInterval(downtimer);
                downlock=true;
            }


            if (ev.keyCode == 65) {
                clearInterval(lefttimer);
                leftlock=true;
            }


            if (ev.keyCode == 68) {
                clearInterval(righttimer);
                rightlock=true;
            }
        }, false);
    }


    //2.3我方飞机发射子弹
    Myplane.prototype.myplaneshoot = function() {
        var that = this;
        var shoottimer = null;
        var shootlock = true;
        document.addEventListener('keydown', shootbullet, false);


        function shootbullet(ev) {
            var ev = ev || window.event;
            if (ev.keyCode == 75) {
                if (shootlock) {
                    shootlock = false;


                    function shoot() {
                        new Bullet(6, 14, that.x + that.w / 2 - 3, that.y - 14, 'img/bullet.png');
                    }
                    shoot();
                    shoottimer = setInterval(shoot, 200);
                }
            }
        }
        document.addEventListener('keyup', function(ev) {
            var ev = ev || window.event;
            if (ev.keyCode == 75) {
                clearInterval(shoottimer);
                shootlock = true;
            }
        }, false);
    }



    //3.子弹的构造函数
    function Bullet(w, h, x, y, imgurl) { //w,h宽高 x,y位置  imgurl图片路径
        this.w = w;
        this.h = h;
        this.x = x;
        this.y = y;
        this.imgurl = imgurl;
        //创建子弹
        this.createbullet();
    }


    //3.1创建子弹
    Bullet.prototype.createbullet = function() {
        this.bulletimg = document.createElement('img');
        this.bulletimg.src = this.imgurl;
        this.bulletimg.style.cssText = `width:${this.w}px;height:${this.h}px;position:absolute;left:${this.x}px;top:${this.y}px;`;
        gamebox.appendChild(this.bulletimg);
        //子弹创建完成,执行运动。
        this.bulletmove();
    }
    //3.2子弹运动
    Bullet.prototype.bulletmove = function() {
        var that = this;
        this.timer = setInterval(function() {
            that.y -= 4;
            if (that.y <= -that.h) { //让子弹消失
                clearInterval(that.timer);
                gamebox.removeChild(that.bulletimg);
            }
            that.bulletimg.style.top = that.y + 'px';
            that.bullethit();
        }, 30)


    }
    Bullet.prototype.bullethit = function() {
        var enemys = document.querySelectorAll('.enemy');
        for (var i = 0; i < enemys.length; i++) {
            if (this.x + this.w >= enemys[i].offsetLeft && this.x <= enemys[i].offsetLeft + enemys[i].offsetWidth && this.y + this.h >= enemys[i].offsetTop && this.y <= enemys[i].offsetTop + enemys[i].offsetHeight) {
                clearInterval(this.timer);
                try {
                    gamebox.removeChild(this.bulletimg);
                } catch (e) {
                    return;
                }


                //血量减1
                enemys[i].blood--;
                //监听敌机的血量(给敌机添加方法)
                enemys[i].checkblood();
            }
        }


    }
    //4.敌机的构造函数
    function Enemy(w, h, x, y, imgurl, boomurl, blood, score, speed) {
        this.w = w;
        this.h = h;
        this.x = x;
        this.y = y;
        this.imgurl = imgurl;
        this.boomurl = boomurl;
        this.blood = blood;
        this.score = score;
        this.speed = speed;
        this.createenemy();
    }


    //4.1创建敌机图片
    Enemy.prototype.createenemy = function() {
        var that = this;
        this.enemyimg = document.createElement('img');
        this.enemyimg.src = this.imgurl;
        this.enemyimg.style.cssText = `width:${this.w}px;height:${this.h}px;position:absolute;left:${this.x}px;top:${this.y}px;`;
        gamebox.appendChild(this.enemyimg);


        this.enemyimg.className = 'enemy'; //给每一架创建的敌机添加类
        this.enemyimg.score = this.score; //给每一架创建的敌机添加分数
        this.enemyimg.blood = this.blood; //给每一架创建的敌机添加自定义的属性--血量
        this.enemyimg.checkblood = function() {
            //this==>this.enemyimg
            if (this.blood <= 0) { //敌机消失爆炸。
                this.className = ''; //去掉类名。
                this.src = that.boomurl;
                clearInterval(that.enemyimg.timer);
                setTimeout(function() {
                    gamebox.removeChild(that.enemyimg);
                }, 300);
                zscore += this.score;
                oEm.innerHTML = zscore;
            }
        }
        //子弹创建完成,执行运动。
        this.enemymove();
    }
    //4.2敌机运动
    Enemy.prototype.enemymove = function() {
        var that = this;
        this.enemyimg.timer = setInterval(function() {
            that.y += that.speed;
            if (that.y >= gamebox.offsetHeight) {
                clearInterval(that.enemyimg.timer);
                gamebox.removeChild(that.enemyimg);
            }
            that.enemyimg.style.top = that.y + 'px';
            that.enemyhit();
        }, 30);
    }


    //4.3敌机碰撞我方飞机
    Enemy.prototype.enemyhit = function() {
        if (!(this.x + this.w < ourplane.x || this.x > ourplane.x + ourplane.w || this.y + this.h < ourplane.y || this.y > ourplane.y + ourplane.h)) {
            var enemys=document.querySelectorAll('.enemy');
            for (var i = 0; i < enemys.length; i++) {
                clearInterval(enemys[i].timer);
            }
            clearInterval(enemytimer);
            clearInterval(bgtimer);
            ourplane.myplaneimg.src = ourplane.boomurl;
            setTimeout(function() {
                gamebox.removeChild(ourplane.myplaneimg);
                alert('game over!!');
                location.reload();
            }, 300)
        }
    }


    var enemytimer = setInterval(function() {
        for (var i = 0; i < ranNum(1, 3); i++) {
            var num = ranNum(1, 20); //1-20
            if (num < 15) { //小飞机
                new Enemy(34, 24, ranNum(0, gamebox.offsetWidth - 34), -24, 'img/smallplane.png', 'img/smallplaneboom.gif', 1, 1, ranNum(2, 4));
            } else if (num >= 15 && num < 20) {
                new Enemy(46, 60, ranNum(0, gamebox.offsetWidth - 46), -60, 'img/midplane.png', 'img/midplaneboom.gif', 3, 5, ranNum(1, 3));
            } else if (num == 20) {
                new Enemy(110, 164, ranNum(0, gamebox.offsetWidth - 110), -164, 'img/bigplane.png', 'img/bigplaneboom.gif', 10, 10, 1);
            }
        }
    }, 3000);


    function ranNum(min, max) {
        return Math.round(Math.random() * (max - min)) + min;
    }
    //实例化我方飞机
    var ourplane = new Myplane(66, 80, (gamebox.offsetWidth - 66) / 2, gamebox.offsetHeight - 80, 'img/myplane.gif', 'img/myplaneBoom.gif');
})();

四、代码资源分享

💡点击链接下载飞机大战i资源https://gitee.com/huang_weifu/JavaScript_demo.git

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