js实现一个简单的星球大战射击游戏效果代码-html代码-BFW代码库

代码语言：html
所属分类：游戏
代码描述：js实现一个简单的星球大战射击游戏效果代码
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<style>
    *{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
    color: #000000;
}
body{
    width: 960px;
    height: 600px;
    margin: 0 auto;
    font-size: 20px;
}
/**************************************************开始界面*********************************************************/
#ks{
    width: 960px;
    height: 600px;
    background: url("//repo.bfw.wiki/bfwrepo/image/607e4ca28879b.png");
    margin: auto;
    display: block;
}
/**********游戏名称**********/
#ks .mc{
    width: 580px;
    height: 100px;
    /*background-color: gold;*/
    margin: 0 auto;
    font-size: 100px;
    color: #ffffff;
}

/**********开始按钮**********/
#ks .an button{
    width: 200px;
    height: 50px;
    background-color: #f19e0d;
    position: relative;
    top: 350px;
    left: 375px;
    font-size: 25px;
    cursor:pointer;
}
/**********游戏说明**********/
#ks .sm{
    width: 400px;
    height: 300px;
    /*background-color: deeppink;*/
    margin: -40px 0 0 250px;
    font-size: 17px;
    color: azure;
    overflow: hidden;
}
#ks .sm .sm1{
    width: 400px;
    height: 460px;
    position: relative;
    top: 200px;
    cursor:pointer;
    /*background-color: firebrick;*/
    -webkit-animation-name:move;
    -webkit-animation-duration:20s;
    animation-iteration-count:999;
    animation-timing-function: linear;
}
#ks .sm .sm1:hover{
    animation-play-state: paused;
}
@keyframes move{
    from{
        transform: translateX(0px);
    }
    to{
        transform: translateY(-420px);
    }
}
#ks .sm .sm1 ul li{
    line-height: 18px;
    list-style-type: none;
}
/**************************************************游戏界面*********************************************************/
#yx{
    width: 960px;
    height: 600px;
    background: url("//repo.bfw.wiki/bfwrepo/image/607e4ca28879b.png");
    margin: 0 auto;
    position: relative;
    display: none;
    overflow: hidden;
}
#yx .main{
    width: 100px;
    height: 100px;
    /*background-color: firebrick;*/
    position: absolute;
    left: 0;
    top: 200px;
    z-index: 1;
}
#yx .planet{
    width: 100%;
    height: 100%;
    /*background-color: gold;*/
    position: absolute;
    z-index: 0;
}
#yx .jm4{
    width: 20px;
    height: 6px;
    position: absolute;
    /*background-color: #ff2b85;*/
    top: 296px;
    left: 94px;
}
#bullets,#enemy,#xx{
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
}
.b{
    width: 14px;
    height: 6px;
    position: absolute;
}
.e{
    position: absolute;
}
.z{
    position: absolute;
}
#yx .jm6{
    width: 50px;
    height: 50px;
    /*background-color: fuchsia;*/
    position: absolute;
    left: 200px;
    top: 10px;
}
#yx .jm6 img{
    width: 35px;
    height: 45px;
}
#yx .jm6 .jm7{
    width: 200px;
    height: 8px;
    /*background-color: violet;*/
    border: #f1be65 solid 2px;
    position: relative;
}
#yx .jm6 .jm7 .schedule{
    width: 198px;
    height: 6px;
    /*background-color: #f1be65;*/
    position: absolute;
    top: 1px;
}
#jdt{
    width: 198px;
    height: 6px;
    background-color: #f1be65;
    position: absolute;
    top: 1px;
}
#span{
    color: white;
    position: absolute;
    left: -30px;
}
#p{
    position: absolute;
    top: -45px;
    left: 180px;
    color: white;
    /*font-size: 20px;*/
}
.rl{
    position: absolute;
}
#yx #scores{
    width: 200px;
    height: 40px;
    /*background-color: darkblue;*/
    /*border: #f19e0d solid 3px;*/
    color: #ffffff;
    /*//font-size: 30px;*/
    position: absolute;
    left: 500px;
    top: 20px;

}
#yx .jm9{
    width: 50px;
    height: 50px;
    /*background-color: darkblue;*/
    position: absolute;
    left: 800px;
    top:20px;
}
#yx #jm9{
    color: white;
    /*font-size: 20px;*/
}
#yx #jm9 input{
    width: 70px;
    height: 30px;
    position: absolute;
    border: #f19e0d solid 3px;
    left: 60px;
    top: 5px;
    font-size: 18px;

}
#yx .jm9 img{
    width: 100%;
    height: 100%;
}

#yx .jm11{
    width: 150px;
    height: 50px;
    /*background-color: rgba(255, 255, 255, 0.5);*/
    position: absolute;
    top: 530px;
    left: 300px;
    cursor: pointer;
}
#yx .jm11 img:nth-child(2){
    position: absolute;
    left: 90px;
}
#yx .jm12{
    width: 50px;
    height: 50px;
    background-color: #ffffff;
    border-radius: 50%;
    color: #ffffff;
    /*font-size: 50px;*/
    position: absolute;
    left: 600px;
    top: 530px;
}
#jpzt{
    cursor: pointer;
}
#yx .jm13{
    width: 150px;
    height: 150px;
    /*background-color: rgba(255, 255, 255, 0.1);*/
    position: absolute;
    top: 430px;
    left: 730px;
    z-index: 1;
}
#yx .jm13 img:nth-child(1){
    position: absolute;
    left: 50px;
    cursor: pointer;
}
#yx .jm13 img:nth-child(2){
    position: absolute;
    left: 100px;
    top: 50px;
    cursor: pointer;
}
#yx .jm13 img:nth-child(3){
    position: absolute;
    left: 50px;
    top: 100px;
    cursor: pointer;
}
#yx .jm13 img:nth-child(4){
    position: absolute;
    top: 50px;
    cursor: pointer;
}
.f{
    position: absolute;
}

#nickname{
    width: 960px;
    height: 600px;
    background: url("//repo.bfw.wiki/bfwrepo/image/607e4ca28879b.png");
    margin: 0 auto;
    display: none;
}
#nickname .nickname1{
    width: 600px;
    height: 600px;
    background-color: rgba(255, 255, 255, 0.3);
    margin: 0 auto;
    position: relative;
}
#nickname .nickname1 a:nth-child(1){
    font-size: 50px;
    color: white;
    position: absolute;
    top: 20px;
    left: 145px;
}

#nickname .nickname1 span{
    color: white;
    font-size: 30px;
    position: absolute;
    border: white solid 3px;
    background-color: #f1be65;
    top: 400px;
    left: 225px;
    cursor: pointer;
}
#df{
    width: 200px;
    height: 100px;
    /*background-color: yellow;*/
    position: absolute;
    top: 100px;
    left: 200px;
    font-size: 20px;

}
</style>
    <script>
        ;window.onload = function () {
    //获取标签
    function $(idName) {
        return document.getElementById(idName);
    }

    //获取样式使用最终值的函数
    function getStyle(ele, attr) {
        var res = null;
        if (ele.currentStyle) {
            res = ele.currentStyle[attr];
        } else {
            res = window.getComputedStyle(ele, null)[attr];
        }
        return parseFloat(res);
    }

    //获取标签元素
    //获取开始按钮元素
    var ks = $("ks")
        , s = $("scores").firstElementChild.firstElementChild
        , an = $("an")//开始标签
        , yx = $("yx")//游戏界面标签
        , enemyP = $("enemy")//敌方飞机标签
        , rlP = $("rl")//进度条标签
        , tubiao = $("tubiao")//燃料标签
        , xxP = $("xx")//行星标签
        , nickname = $("nickname")//输入昵称标签
        , djzdsP = $("djzds")//敌机子弹标签
        , bullet = $("bullet");//子弹标签
    var bullets = [];//所有子弹的集合
    var rls = [];//定义燃料集合
    var xxx = [];//定义行星集合
    var djzds = [];//定义敌机子弹的集合
    //定义己方飞船
    var main = $("main");
    var x = null;//行星定时器
    var c = null; //背景定时器
    var score = 0;//得分
    var backgroundPX = 0; //定义背景的x轴
    //开始游戏
    an.firstElementChild.onclick = function () {
        ks.style.display = "none";
        yx.style.display = "block";
        appearEnemy();//敌机开始创建
        start();//计时器开始计时
        rl1();//燃料开始创建
        jdt();//进度条开始倒计时
        xxyd();//行星开始创建
        bgMove();//背景移动
        djzd_1();//创建敌机子弹

    };

    //键盘控制方向
    var main1 = document.getElementById("main");
    var jLeft = false;
    var jTop = false;
    var jRight = false;
    var jBottom = false;
    var mainStatus = true;
    var yxH = getStyle(yx, "height");
    setInterval(function () {
        if (jLeft) {
            if (mainStatus) {
                main1.style.left = main1.offsetLeft - 10 + "px";
            }
        } else if (jRight) {
            if (mainStatus) {
                main1.style.left = main1.offsetLeft + 10 + "px";
            }
        }
        if (jTop) {
            if (mainStatus) {
                main1.style.top = main1.offsetTop - 10 + "px";
            }
        } else if (jBottom) {
            if (mainStatus) {
                main1.style.top = main1.offsetTop + 10 + "px";
            }
        }
        limit();
    }, 30);
    document.onkeydown = function (event) {
        var event = event || window.event;
        switch (event.keyCode) {
            case 37:
                jLeft = true;
                break;
            case 38:
                jTop = true;
                break;
            case 39:
                jRight = true;
                break;
            case 40:
                jBottom = true;
                break;
        }
        limit();
        return false;
    };
    //var youxizt =true;
    // if(youxizt){正常调用}
    // else{ !createBullet();}
    // 暂停：{youxizt =false}
    // 开始{youxizt =true;}

    document.onkeyup = function (event) {
        switch ((event || window.event).keyCode) {
            case 37:
                jLeft = false;
                break;
            case 38:
                jTop = false;
                break;
            case 39:
                jRight = false;
                break;
            case 40:
                jBottom = false;
                break;
            case 32:
                if (mainStatus) {
                    createBullet();//触发子弹事件
                }
                break;
            case 80:
                if (mainStatus) { //点击P建时，暂停游戏，再次点击，开始游戏
                    mainStatus = false;
                    clearInterval(b);//清除敌机定时器
                    clearInterval(rl);//清除燃料定时器
                    clearInterval(x);//清除行星定时器
                    clearInterval(int);//清除计时器
                    clearInterval(djzd_timer);//清除敌机创建子弹定时器
                } else {
                    mainStatus = true;
                    rl = null;//燃料为空
                    rl1();//燃料开始创建
                    b = null;//敌机为空
                    appearEnemy();//敌机开始创建
                    x = null;//行星为空
                    xxyd();//开始创建行星
                    int = null;//计时器为空
                    start();//开始计时器
                    djzd_timer = null;//敌机子弹定时器
                    djzd_1();//开始敌机子弹定时器

                }
        }
        limit();
        return true;
    };

    //防止溢出
    function limit() {
        //var doc = [document.documentElement.clientWidth, document.documentElement.clientHeight];
        //防止左侧溢出
        main1.offsetLeft <= 0 && (main1.style.left = 0 + "px");
        //防止顶部溢出
        main1.offsetTop <= 0 && (main1.style.top = 0 + "px");
        //防止右侧溢出
        main1.offsetLeft >= 860 && (main1.style.left = 860 + "px");
        //防止底部溢出
        main1.offsetTop >= 500 && (main1.style.top = 500 + "px");
    }


//敏感区域的移动
    var top = document.getElementById("top");
    var left = document.getElementById("left");
    var right = document.getElementById("right");
    var bottom = document.getElementById("bottom");

    right.onmouseover = function () {
        var right_timer = setInterval(function () {
            if (right) {
                if (mainStatus) {
                    main1.style.left = main1.offsetLeft + 10 + "px";
                }
            }
            limit();
        }, 30);
        right.onmouseout = function () {
            clearInterval(right_timer);
        }
    };
    top.onmouseover = function () {
        var top_timer = setInterval(function () {
            if (top) {
                if (mainStatus) {
                    main1.style.top = main1.offsetTop - 10 + "px"
                }
            }
            limit();
        }, 30);
        top.onmouseout = function () {
            clearInterval(top_timer);
        }
    };
    left.onmouseover = function () {
        var left_timer = setInterval(function () {
            if (left) {
                if (mainStatus) {
                    main1.style.left = main1.offsetLeft - 10 + "px"
                }
            }
            limit();
        }, 30);
        left.onmouseout = function () {
            clearInterval(left_timer);
        }
    };
    bottom.onmouseover = function () {
        var bottom_timer = setInterval(function () {
            if (bottom) {
                if (mainStatus) {
                    main1.style.top = main1.offsetTop + 10 + "px"
                }
            }
            limit();
        }, 30);
        bottom.onmouseout = function () {
            clearInterval(bottom_timer);
        }
    };
    var bulletW = 14
        , bulletH = 6;
    var bulletsP = $("bullets");
    var myMainW = getStyle(main, "width")
        , myMainH = getStyle(main, "height");
    var yxW = getStyle(yx, "width")
        , yxH = getStyle(yx, "height");

    //制造子弹
    function createBullet() {
        var bullet = new Image();
        bullet.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAGCAMAAADExV+OAAAABGdBTUEAALGPC/xhBQAAAAFzUkdCAK7OHOkAAADMUExURQAAAJFIAJFIAHRGAJJHAJJGAJNIAJFIAJFIAJJGAJBIAJJGAJNJAJNJAJJGAJBHAI9JAJNJAJFIAJJEAJJGAI1IAJFIAJNGAJBFAJNHAI1IAJFEAJBIAJdGAJFGAJJGAIw/AJNFAJBIAJFHAJBHAJBHAJFIAJBJAJBIAJJJAJFGAJJJAI9DAJJEAJNHAItEAI9FAI5HAIBAAJFGAJBKAI1LAJNAAJBIAJJIAJBHAJNIAJBIAJJHAJJFAJBGAJJJAJJJAIxFAIBIAJJIAIRfzZcAAABEdFJOUwDqzgvG3tLj3OzK0Mv12/TPz8dp4nLV7NrGYB61FsWoNcF1Ydhl8eHry/Tga2LNT11IBL6VOii8xOauw7SY7agOeiC9pdBHIAAAAAlwSFlzAAAOwwAADsMBx2+oZAAAAGFJREFUGFdjYGBQ5hHgZJVhszSxMWNgYFZQZGES5OUwZmW3MnVgkGdkZ9TkEuLnc2ZntzdnUJLjVFdj42YRl7C2s3BkYJDV09DWUhGTFOGwdQKaZGSoq2+goyolLCrNwAAAe0oJHTUfFKgAAAAASUVORK5CYII=";
        bullet.className = "b";
        //己方飞机的位置
        var myMainL = getStyle(main, "left")
            , myMainT = getStyle(main, "top");
        //确定创建子弹的位置
        var bulletT = myMainT + myMainH / 2 - bulletH / 2
            , bulletL = myMainL + myMainW - bulletW / 2;
        if (mainStatus) {
            bullet.style.left = bulletL + "px";
            bullet.style.top = bulletT + "px";
        }
        bulletsP.appendChild(bullet);
        bullets.push(bullet);
        move(bullet, "left");
    }

    //子弹的运动
    function move(ele, attr) {
        var speed = +8;
        ele.timer = setInterval(function () {
            var moveVal = getStyle(ele, attr);
            //子弹的运动出游戏界面： 清除定时器 ，删除子弹
            if (moveVal >= 940) {
                clearInterval(ele.timer);
                ele.parentNode.removeChild(ele);
                bullets.splice(0, 1);
            } else {
                if (mainStatus) {
                    ele.style[attr] = moveVal + speed + "px";
                }
            }
        }, 30);
    }

    //创建敌机数据
    var ememysObj = {
        enemy1: {
            width: 80,
            height: 81,
            score: 5,
            hp: 100
        },
        enemy2: {
            width: 80,
            height: 80,
            score: 10,
            hp: 200
        },
        enemy3: {
            width: 80,
            height: 80,
            score: -10,
            hp: 100
        }
    };
    //创建燃料
    var rlObj = {
        rl1: {
            width: 35,
            height: 45
        }
    };
    //创建行星
    var xxObj = {
        xx1: {
            width: 100,
            height: 100
        },
        xx2: {
            width: 80,
            height: 80
        },
        xx3: {
            width: 90,
            height: 52
        },
        xx4: {
            width: 35,
            height: 36
        },
        xx5: {
            width: 23,
            height: 24
        }
    };
    //创建敌机的定时器
    var b = null;

    function appearEnemy() {
        if (b) return;//当创建子弹的定时器“b”为null时执行以下函数，当创建子弹定时器为return时不执行以下函数
        b = setInterval(function () {
            //制造敌机
            if (mainStatus) {
                createEnemy();
            }
        }, 1000);
    }

    clearInterval(b);
    //制造敌机的函数
    var enemys = [];

    function createEnemy() {
        //敌机出现概率的数据
        var percentData = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3];
        //敌机的类型
        var enemyType = percentData[Math.floor(Math.random() * percentData.length)];
        //得到当前随机敌机的数据
        var enemyData = ememysObj ["enemy" + enemyType];
        //创建敌机所在的元素
        var enemy = new Image(enemyData.width, enemyData.height);
        enemy.src = "//repo.bfw.wiki/bfwrepo/image/5f0bbc710dfdd.png";
        enemys.t = enemyType;
        enemy.score = enemyData.score;
        enemy.hp = enemyData.hp;
        enemy.className = "e";
        enemy.dead = false;//敌机存活
        //确定当前敌机的出现时的位置
        var enemyL = -enemyData.width
            , enemyT = Math.floor(Math.random() * (yxH - enemyData.height + 1));
        if (mainStatus) {
            enemy.style.left = 960 + "px";
            enemy.style.top = enemyT + "px";
        }
        enemyP.appendChild(enemy);
        enemys.push(enemy);
        enemyMove(enemy, "left");
    }

    //敌机子弹创建方法
     var djzd_timer = null;
    function djzd_1() {
        if(djzd_timer) return;
        djzd_timer = setInterval(function () {
            var djs = enemyP.getElementsByTagName("img");
            for (var i = 0; i < djs.length; i++) {
                if (djs[i].offsetHeight === 81) {
                    // console.log(djs[i].offsetTop,djs[i].offsetHeight);
                    create_djzd(djs[i]);
                }
            }
        }, 2000);
    }

    function create_djzd(ele) {
        //console.log(ele.offsetHeight);
        //敌机子弹的宽、高
        var djzdW = 14
            , djzdH = 6;
        var djzd = new Image();
        djzd.src = "//repo.bfw.wiki/bfwrepo/image/6077e8b0cc79e.png";
        djzd.className = "z";
        //确定敌机创建的位置
        var djW = ele.offsetWidth
            , djH = ele.offsetHeight;//敌机的宽高
        var djL = ele.offsetLeft
            ,djT = ele.offsetTop;//敌机的左、上边距
        //console.log(djW);
        //console.log(djH);
        //确定创建敌机子弹的位置
        var djzdT = djT + djH / 2 - djzdH / 2
            , djzdL = djL - djW/2  + djzdW / 2;
        if(mainStatus) {
            djzd.style.top = djzdT + "px";
            djzd.style.left = djzdL + "px";
        }
        djzdsP.appendChild(djzd);
        djzds.push(djzd);
        djzdMove(djzd, "left");
    }

    function djzdMove(ele,attr) {
        var speed = -5;
        ele.timer = setInterval(function () {
            var djzdyd = getStyle(ele,attr);
            if(djzdyd <= -14){
                clearInterval(ele.timer);
                djzdsP.removeChild(ele);
            }else {
                if(mainStatus) {
                    ele.style[attr] = djzdyd + speed + "px";
                }
                zdpz();
            }
        },10)
    }
    //敌机运动
    function enemyMove(ele,attr) {
        var speed = -2;
        ele.timer = setInterval(function () {
            var moveVal = getStyle(ele, attr);
            if (moveVal <= -80) {
                clearInterval(ele.timer);
                enemyP.removeChild(ele);
            } else {
                if(mainStatus) {
                    ele.style[attr] = moveVal + speed + 'px';


                }
                //每一架敌机运动时，检测和每一颗子弹的碰撞
                danger(ele);
                //检测己方飞机与敌机的碰撞
                gameOver();
            }
        }, 10)
    }
        //检测己方飞机的子弹和敌机的碰撞
        function danger(enemys) {
            for (var i = 0; i < bullets.length; i++) {
                //得到子弹的左上边距
                var bulletL = getStyle(bullets[i], "left")
                    , bulletT = getStyle(bullets[i], "top");
                //得到敌机的左上边距
                var enemyL = getStyle(enemys, "left")
                    , enemyT = getStyle(enemys, "top");
                //得到敌机的宽高
                var enemyW = getStyle(enemys, "width")
                    , enemyH = getStyle(enemys, "height");
                var condition = bulletL + bulletW >= enemyL && bulletL <= enemyL + enemyW && bulletT <= enemyT + enemyH && bulletT + bulletH >= enemyT;
                if (condition) {
                    //子弹和敌机的碰撞：删除子弹
                    //console.log("ccc");
                    //1.先清除碰撞子弹的定时器
                    clearInterval(bullets[i].timer);
                    //2.删除元素
                    bulletsP.removeChild(bullets[i]);
                    //3.从集合中删除子弹
                    bullets.splice(i, 1);
                    //4.子弹和敌机发生碰撞后，敌机血量减少，血量为0时，删除敌机
                    enemys.hp -= 100;
                    if (enemys.hp === 0) {
                        //删除敌机
                        clearInterva.........完整代码请登录后点击上方下载按钮下载查看