JS小游戏-宇宙战机

游戏介绍:
业余时间写的一个飞行射击游戏，纵向，共六关。

游戏需求:
1.战机可发射子弹，子弹可通过获取道具升级。
2.战机可放bomb，可获取道具增加数量。
3.战机可蓄力攻击。
4.道具有三种，分别是升级子弹，增加bomb数量，增加战机数量。
5.每关音乐不同。
6.战机被击落后再进入战场，有保护状态。
7.敌机AI设计。

游戏图片:

源文件下载地址: 点击下载

在线游戏地址：开始游戏

Javascript部分:

/** 宇宙战机*   Author: fdipzone*   Date:   2013-02-12*   Ver:    1.0*/window.onload = function(){    var gameimg = [        'images/fighter.png',         'images/fighter_p.png',         'images/fighter_s.png',        'images/fighter_sp.png',         'images/shot.png',         'images/destroy.png',         'images/destroy_boss.png',        'images/enemy.png',         'images/bullet.png',         'images/gift.png',         'images/bomb.png',         'images/boss1.png'];    var callback = function(){        var gameplane = $('gameplane');        fighter.init();        fighter.bgmove(gameplane);    }    img_preload(gameimg, callback);};/** fighter class */var fighter = (function(){        var hiscore = 10000;                    // 最高分    var score = 0;                          // 当前分    var fighternum = 3;                     // 战机数量    var bombnum = 3;                        // 炸弹数量    var ft = null;                          // 战机对象    var is_start = 0;                       // 是否已开始游戏    var is_bombing = 0;                     // 是否爆炸中    var is_lock = 1;                        // 是否锁定    var is_over = 0;                        // 是否已结束    var is_clear = 0;                       // 清屏    var is_pile = 0;                        // 是否已达成蓄力    var is_protect = 0;                     // 是否保护状态    var pilenum = 0;                        // 已蓄力数量    var ackey = {};                         // 记录键是否按下    var keypriority = {};                   // 冲突键优先级    var gamekey = [37,38,39,40,83,65];      // 游戏的按键    var scoretag = [0,20,30,40,50,60,500];  // 不同敌机的分数    var level = 1;                          // 关数        var power = 1;                          // 战机子弹威力    var cheatcode = [];                     // 记录cheat输入    var failtimes = 0;                      // 挑战失败次数        // boss 数据    var bossdata = [                    {'armor':500, 'left':136, 'top':-169, 'step':30},                    {'armor':1000, 'left':136, 'top':-169, 'step':30},                    {'armor':1500, 'left':136, 'top':-169, 'step':30},                    {'armor':2000, 'left':136, 'top':-169, 'step':30},                    {'armor':2500, 'left':136, 'top':-169, 'step':30},                    {'armor':3000, 'left':136, 'top':-169, 'step':30},                   ];    // 出现的敌机    var enemydata = [];    // 当前出现的boss    var curboss = null;        // 关卡数据    var map = [        // level 1        {            'ms50':[[3, 680, 1, -50, 10, 10],[3, 680, 1, -50, 290, 10]],             'ms2500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms3500':[[1, 10, 12, -23, 190, 10]],            'ms5500':[[3, 800, 2, 100, -50, 10]],            'ms7500':[[3, 800, 2, 200, 450, -10]],            'ms8000':[[1, 10, 11, -23, 100, 10]],            'ms9500':[[3, 800, 2, 100, -50, 10]],            'ms11500':[[3, 800, 2, 200, 450, -10]],            'ms13500':[[3, 800, 2, 100, -50, 10]],            'ms15500':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms20000':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms25000':[[1, 10, 4, 150, -50, 10],[1, 10, 4, 250, 400, -10],[1, 10, 4, 100, 400, -10]],            'ms30000':[[3, 800, 5, 692, 90, -10],[3, 800, 5, 692, 280, -10]],            'ms35000':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms38000':[[1, 10, 11, -23, 10, 10]],            'ms40000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms42500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms45500':[[3, 800, 2, 50, -50, 10]],            'ms47500':[[3, 800, 2, 150, 450, -10]],            'ms49500':[[3, 800, 2, 50, -50, 10]],            'ms51500':[[3, 800, 2, 150, 450, -10]],            'ms55500':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms60000':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms65000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms68000':[[3, 800, 5, 692, 110, -10],[3, 800, 5, 692, 260, -10]],            'ms71000':[[1, 10, 13, -23, 220, 10]],            'ms76000':[]        },        // level 2        {            'ms50':[[3, 680, 1, -50, 10, 10],[3, 680, 1, -50, 290, 10]],             'ms2500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms3500':[[1, 10, 12, -23, 190, 10]],            'ms5500':[[3, 800, 2, 100, -50, 10]],            'ms7500':[[3, 800, 2, 200, 450, -10]],            'ms8000':[[1, 10, 11, -23, 100, 10]],            'ms9500':[[3, 800, 2, 100, -50, 10]],            'ms11500':[[3, 800, 2, 200, 450, -10]],            'ms13500':[[3, 800, 2, 100, -50, 10]],            'ms15500':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms20000':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms25000':[[1, 10, 4, 150, -50, 10],[1, 10, 4, 250, 400, -10],[1, 10, 4, 100, 400, -10]],            'ms30000':[[3, 800, 5, 692, 90, -10],[3, 800, 5, 692, 280, -10]],            'ms35000':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms38000':[[1, 10, 11, -23, 10, 10]],            'ms40000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms42500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms45500':[[3, 800, 2, 50, -50, 10]],            'ms47500':[[3, 800, 2, 150, 450, -10]],            'ms49500':[[3, 800, 2, 50, -50, 10]],            'ms51500':[[3, 800, 2, 150, 450, -10]],            'ms55500':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms60000':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms65000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms68000':[[3, 800, 5, 692, 110, -10],[3, 800, 5, 692, 260, -10]],            'ms71000':[[1, 10, 13, -23, 220, 10]],            'ms76000':[]        },        // level 3        {            'ms50':[[3, 680, 1, -50, 10, 10],[3, 680, 1, -50, 290, 10]],             'ms2500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms3500':[[1, 10, 12, -23, 190, 10]],            'ms5500':[[3, 800, 2, 100, -50, 10]],            'ms7500':[[3, 800, 2, 200, 450, -10]],            'ms8000':[[1, 10, 11, -23, 100, 10]],            'ms9500':[[3, 800, 2, 100, -50, 10]],            'ms11500':[[3, 800, 2, 200, 450, -10]],            'ms13500':[[3, 800, 2, 100, -50, 10]],            'ms15500':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms20000':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms25000':[[1, 10, 4, 150, -50, 10],[1, 10, 4, 250, 400, -10],[1, 10, 4, 100, 400, -10]],            'ms30000':[[3, 800, 5, 692, 90, -10],[3, 800, 5, 692, 280, -10]],            'ms35000':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms38000':[[1, 10, 11, -23, 10, 10]],            'ms40000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms42500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms45500':[[3, 800, 2, 50, -50, 10]],            'ms47500':[[3, 800, 2, 150, 450, -10]],            'ms49500':[[3, 800, 2, 50, -50, 10]],            'ms51500':[[3, 800, 2, 150, 450, -10]],            'ms55500':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms60000':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms65000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms68000':[[3, 800, 5, 692, 110, -10],[3, 800, 5, 692, 260, -10]],            'ms71000':[[1, 10, 13, -23, 220, 10]],            'ms76000':[]        },        // level 4        {            'ms50':[[3, 680, 1, -50, 10, 10],[3, 680, 1, -50, 290, 10]],             'ms2500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms3500':[[1, 10, 12, -23, 190, 10]],            'ms5500':[[3, 800, 2, 100, -50, 10]],            'ms7500':[[3, 800, 2, 200, 450, -10]],            'ms8000':[[1, 10, 11, -23, 100, 10]],            'ms9500':[[3, 800, 2, 100, -50, 10]],            'ms11500':[[3, 800, 2, 200, 450, -10]],            'ms13500':[[3, 800, 2, 100, -50, 10]],            'ms15500':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms20000':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms25000':[[1, 10, 4, 150, -50, 10],[1, 10, 4, 250, 400, -10],[1, 10, 4, 100, 400, -10]],            'ms30000':[[3, 800, 5, 692, 90, -10],[3, 800, 5, 692, 280, -10]],            'ms35000':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms38000':[[1, 10, 11, -23, 10, 10]],            'ms40000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms42500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms45500':[[3, 800, 2, 50, -50, 10]],            'ms47500':[[3, 800, 2, 150, 450, -10]],            'ms49500':[[3, 800, 2, 50, -50, 10]],            'ms51500':[[3, 800, 2, 150, 450, -10]],            'ms55500':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms60000':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms65000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms68000':[[3, 800, 5, 692, 110, -10],[3, 800, 5, 692, 260, -10]],            'ms71000':[[1, 10, 13, -23, 220, 10]],            'ms76000':[]        },        // level 5        {            'ms50':[[3, 680, 1, -50, 10, 10],[3, 680, 1, -50, 290, 10]],             'ms2500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms3500':[[1, 10, 12, -23, 190, 10]],            'ms5500':[[3, 800, 2, 100, -50, 10]],            'ms7500':[[3, 800, 2, 200, 450, -10]],            'ms8000':[[1, 10, 11, -23, 100, 10]],            'ms9500':[[3, 800, 2, 100, -50, 10]],            'ms11500':[[3, 800, 2, 200, 450, -10]],            'ms13500':[[3, 800, 2, 100, -50, 10]],            'ms15500':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms20000':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms25000':[[1, 10, 4, 150, -50, 10],[1, 10, 4, 250, 400, -10],[1, 10, 4, 100, 400, -10]],            'ms30000':[[3, 800, 5, 692, 90, -10],[3, 800, 5, 692, 280, -10]],            'ms35000':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms38000':[[1, 10, 11, -23, 10, 10]],            'ms40000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms42500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms45500':[[3, 800, 2, 50, -50, 10]],            'ms47500':[[3, 800, 2, 150, 450, -10]],            'ms49500':[[3, 800, 2, 50, -50, 10]],            'ms51500':[[3, 800, 2, 150, 450, -10]],            'ms55500':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms60000':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms65000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms68000':[[3, 800, 5, 692, 110, -10],[3, 800, 5, 692, 260, -10]],            'ms71000':[[1, 10, 13, -23, 220, 10]],            'ms76000':[]        },        // level 6        {            'ms50':[[3, 680, 1, -50, 10, 10],[3, 680, 1, -50, 290, 10]],             'ms2500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms3500':[[1, 10, 12, -23, 190, 10]],            'ms5500':[[3, 800, 2, 100, -50, 10]],            'ms7500':[[3, 800, 2, 200, 450, -10]],            'ms8000':[[1, 10, 11, -23, 100, 10]],            'ms9500':[[3, 800, 2, 100, -50, 10]],            'ms11500':[[3, 800, 2, 200, 450, -10]],            'ms13500':[[3, 800, 2, 100, -50, 10]],            'ms15500':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms20000':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms25000':[[1, 10, 4, 150, -50, 10],[1, 10, 4, 250, 400, -10],[1, 10, 4, 100, 400, -10]],            'ms30000':[[3, 800, 5, 692, 90, -10],[3, 800, 5, 692, 280, -10]],            'ms35000':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms38000':[[1, 10, 11, -23, 10, 10]],            'ms40000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms42500':[[3, 680, 1, -50, 70, 10],[3, 680, 1, -50, 220, 10]],            'ms45500':[[3, 800, 2, 50, -50, 10]],            'ms47500':[[3, 800, 2, 150, 450, -10]],            'ms49500':[[3, 800, 2, 50, -50, 10]],            'ms51500':[[3, 800, 2, 150, 450, -10]],            'ms55500':[[3, 800, 3, -50, 90, 10],[3, 800, 3, -50, 280, 10]],            'ms60000':[[3, 800, 3, -50, 30, 10],[3, 800, 3, -50, 340, 10]],            'ms65000':[[1, 10, 4, 100, 400, -10],[1, 10, 4, 300, -50, 10]],            'ms68000':[[3, 800, 5, 692, 110, -10],[3, 800, 5, 692, 260, -10]],            'ms71000':[[1, 10, 13, -23, 220, 10]],            'ms76000':[]        }    ];    // 初始化    init = function(){        ft = $('fighter');        reset();        key_event();    }    // 开始游戏    start = function(){        is_clear = 0;        is_protect = 0;        disp(ft.id, 'show');        reset_fighter();        reset_pile();        process();        bgsound(level, true);        bgchange(level);        fighter_init();    }    // 设置事件    key_event = function(){        document.onkeydown = function(e){            var e = e || window.event;            var curkey = e.keyCode || e.which || e.charCode;            if(is_start==0){                 if(cheatcode.length>12){                    cheatcode.shift();                }                cheatcode.push(curkey); // 记录用户输入的cheatcode            }                        if(is_start==1 && in_array(curkey,gamekey)){                if(ackey[curkey.toString()]==0 || typeof(ackey[curkey.toString()])=='undefined' || !in_array(curkey,[83,65])){    // 射击与炸弹连按屏蔽                    ackey[curkey.toString()] = 1;    // save key down                    switch(curkey){                        case 37:                        case 39:                            keypriority.left = curkey;    // left right                            break;                        case 38:                        case 40:                            keypriority.top = curkey;    // up down                            break;                    }                }else{                    return false;                }            }                        if(curkey==13 || is_start==1 && is_lock==0){    // game is start or key=13                switch(curkey){                    case 13: // enter                        if(is_start==0){                            is_start=1;                            disp('op', 'hide');                            msg_show();                            setTimeout(function(){                                msg_hide();                                cheat();                                start();                            }, 1500);                        }                        break;                    case 83: // 射击                        shot();                        break;                    case 65: // 炸弹                        bomb();                        break;                }            }        }        document.onkeyup = function(e){            var e = e || window.event;            var curkey = e.keyCode || e.which || e.charCode;            if(is_start==1 && in_array(curkey,gamekey)){                ackey[curkey.toString()] = 0;    // release key down                                if(curkey==83){// 释放蓄力攻击                    if(is_pile==1){                        pile_shot();                    }                    reset_pile();                }            }        }    }    // 循环执行的动作    action = function(){        var movestep = 5;    // 移动步长        var et = setInterval(function(){            if(is_start==0 || is_lock==1){                clearInterval(et);            }                        // 移动            if(ackey['37']==1 && (ackey['39']==0 || keypriority.left==37)){    // 冲突时判断优先级                if(getPosition(ft,'left')<movestep){                    setPosition(ft, 'left', 0);    // left                }else{                    setPosition(ft, 'left', getPosition(ft,'left') - movestep);                }            }            if(ackey['38']==1 && (ackey['40']==0 || keypriority.top==38)){                if(getPosition(ft, 'top')<movestep){                    setPosition(ft, 'top', 0);    // top                }else{                    setPosition(ft, 'top', getPosition(ft,'top') - movestep);                }            }            if(ackey['39']==1 && (ackey['37']==0 || keypriority.left==39)){                if(400-(getPosition(ft,'left')+50)<movestep){                    setPosition(ft, 'left', 350);    //width-fighter.width                }else{                    setPosition(ft, 'left', getPosition(ft,'left') + movestep);                }            }            if(ackey['40']==1 && (ackey['38']==0 || keypriority.top==40)){                if(640-(getPosition(ft,'top')+50)<movestep){                    setPosition(ft, 'top', 590);    // height-fighter.height                }else{                    setPosition(ft, 'top', getPosition(ft,'top') + movestep);                }            }            // 蓄力攻击            if(ackey['83']==1){                if(pilenum<1000){                    pilenum = pilenum + 20;                }else if(is_pile==0){                    is_pile = 1;                    if(is_protect==1){                        setClass(ft, 'fighter_sp');                    }else{                        setClass(ft, 'fighter_s');                    }                }            }        }, 20);    }    // 战机射击    shot = function(){        // 创建子弹        var bullet = document.createElement('div');        var offsetx;        switch(power){            case 1:                offsetx = 20;                break;            case 2:                offsetx = 15;                break;            case 3:                offsetx = 10;                break;            case 4:                offsetx = 4;                break;        }        setClass(bullet, 'shot' + power);        // 设置子弹初始位置        setPosition(bullet, 'top', getPosition(ft, 'top')-30);        setPosition(bullet, 'left', getPosition(ft, 'left') + offsetx);                ft.parentNode.appendChild(bullet);                // 设置子弹运动        var et = setInterval(function(){            if(getPosition(bullet,'top')<=-30 || is_lock==1){                clearInterval(et);                ft.parentNode.removeChild(bullet);    // 释放子弹            }            for(var i=0; i<enemydata.length; i++){                if(enemydata[i]!=null){                    if(impact(bullet, enemydata[i])){    // 打中敌机                        destroy(enemydata[i]);                        scoreup(enemydata[i].type);                        enemydata[i] = null;                        clearInterval(et);                        ft.parentNode.removeChild(bullet);                    }                }            }            if(curboss!=null){    // boss 战                if(impact(bullet, curboss['obj'])){ // 打中boss                    curboss['armor']=parseInt(curboss['armor'])-power*10;                    clearInterval(et);                    ft.parentNode.removeChild(bullet);                }            }            setPosition(bullet, 'top', getPosition(bullet, 'top')-15);        }, 30)    }    // 蓄力射击    pile_shot = function(){        var pilebullet = document.createElement('div');        setClass(pilebullet, 'pileshot');        // 设置子弹初始位置        setPosition(pilebullet, 'top', getPosition(ft, 'top')-30);        setPosition(pilebullet, 'left', getPosition(ft, 'left'));                ft.parentNode.appendChild(pilebullet);        var et = setInterval(function(){            if(getPosition(pilebullet,'top')<=-85 || is_lock==1){                clearInterval(et);                ft.parentNode.removeChild(pilebullet); // 释放子弹            }            for(var i=0; i<enemydata.length; i++){                if(enemydata[i]!=null){                    if(impact(pilebullet, enemydata[i])){    // 打中敌机                        destroy(enemydata[i]);                        scoreup(enemydata[i].type);                        enemydata[i] = null;                    }                }            }            if(curboss!=null){    // boss 战                if(impact(pilebullet, curboss['obj'])){ // 打中boss                    curboss['armor']=parseInt(curboss['armor'])-100;                    clearInterval(et);                    ft.parentNode.removeChild(pilebullet); // 释放子弹                }            }            setPosition(pilebullet, 'top', getPosition(pilebullet, 'top')-20);        }, 30)    }    // 放炸弹    bomb = function(){        if(is_bombing==0 && bombnum>0){    // 不是爆炸中且有炸弹数            is_bombing = 1;            bombnum --;            setHtml('bombnum', bombnum);    // 自减1            var opacity = 100;            setOpacity($('bomb'), opacity);            disp('bomb', 'show');            // 清除所有敌机及敌方子弹            is_clear = 1;            // 打击boss            if(curboss!=null){                curboss['armor'] = parseInt(curboss['armor'])-300;            }            var step = 0;            var et = setInterval(function(){    // 炸弹效果                if(step<11){                    setBgPosition($('bomb'), 0, step*(-280));                }else{                    clearInterval(et);                    disp('bomb', 'hide');                    is_bombing = 0;                    is_clear = 0;                }                step ++;            }, 70);        }    }    // 游戏进程    process = function(){        var leveldata = map[level-1], processed = 0, step = 10;        var levelstep = 0;    // 每关开始清0        var et = setInterval(function(){            if(is_lock==0){                processed += step;                if(attrcount(leveldata)>levelstep){    // 未完成本关                    if(leveldata['ms'+processed]){                        for(var i=0; i<leveldata['ms'+processed].length; i++){                            var msdata = leveldata['ms'+processed][i];                            create(msdata);                        }                        levelstep ++;    // 进度                    }                }else{    // 已完成本关,进入Boss战                    bosswar();                    clearInterval(et);                }            }            if(is_over==1){                clearInterval(et);            }        }, step);    }    /* 创建关卡元素    /* msdata:{       num:出现的数量       interval:间隔       type:类型       top:原始top坐标       left:原始left坐标       step:移动距离       }    */    create = function(msdata){        var num = msdata[0],            interval = msdata[1],            type = msdata[2],            top = msdata[3],            left = msdata[4],            step = msdata[5];        var et = setInterval(function(){                if(num>0){                    var enft = document.createElement('div');                    setClass(enft, 'element' + type);                    enft.type = type;                    setPosition(enft, 'top', top);                    setPosition(enft, 'left', left);                    ft.parentNode.appendChild(enft);                    if(type<=10){                        enemydata.push(enft);                    }                    route(enft, type, step);                    num--;                }else{                    clearInterval(et);                }            }, interval);    }    // 元素运动轨迹    route = function(enft, type, step){        var et = null;        switch(type){            case 1: // 曲线                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'top', getPosition(enft,'top')+Math.abs(step));                        setPosition(enft, 'left', getPosition(enft,'left')+step);                        count<5? count++ : (count=0, step*=-1);                        if(getPosition(enft, 'top')>640 || is_over==1 || is_clear==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        impact_handle(enft, et);                    }else{                        clearInterval(et);                    }                }, 80);                break;            case 2: // 横向                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'left', getPosition(enft,'left')+step);                        count<9? count++ : (count=0, attack(enft,1,17,47));                        if(getPosition(enft,'left')>400 && step>0 || getPosition(enft,'left')<-50 && step<0 || is_over==1 || is_clear==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        impact_handle(enft, et);                    }else{                        clearInterval(et);                    }                }, 80);                break;            case 3: // 竖向                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'top', getPosition(enft,'top')+step);                        count<9? count++ : (count=0, attack(enft,1,17,47));                        if(getPosition(enft,'top')>640 || is_over==1 || is_clear==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        impact_handle(enft, et);                    }else{                        clearInterval(et);                    }                }, 75);                break;            case 4: // 左右循环移动攻击                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'left', getPosition(enft,'left')+step);                        count<10? count++ : (count=0, attack(enft,4,17,31));                                                if(getPosition(enft,'left')>=350 && step>0 || getPosition(enft,'left')<=0 && step<0){                            step*=-1;                        }                        if(is_over==1 || is_clear==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        impact_handle(enft, et);                    }else{                        clearInterval(et);                    }                }, 80);                break;            case 5: // 从后面攻击                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'top', getPosition(enft,'top')+step);                        count<9? count++ : (count=0, attack(enft,1,17,-17));                        if(getPosition(enft,'top')<-32 || is_over==1 || is_clear==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        impact_handle(enft, et);                    }else{                        clearInterval(et);                    }                }, 75);                break;            case 11: // power gift                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'top', getPosition(enft,'top')+Math.abs(step));                        setPosition(enft, 'left', getPosition(enft,'left')+step);                        count<5? count++ : (count=0, step*=-1);                        if(getPosition(enft, 'top')>640 || is_over==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        if(impact(enft, ft) && is_lock==0){    // 奖励与战机相撞                            powerup();                            ft.parentNode.removeChild(enft);                            clearInterval(et);                        }                    }else{                        clearInterval(et);                    }                }, 80);                break;            case 12: // bomb gift                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'top', getPosition(enft,'top')+Math.abs(step));                        setPosition(enft, 'left', getPosition(enft,'left')+step);                        count<5? count++ : (count=0, step*=-1);                        if(getPosition(enft, 'top')>640 || is_over==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        if(impact(enft, ft) && is_lock==0){    // 奖励与战机相撞                            bombup();                            ft.parentNode.removeChild(enft);                            clearInterval(et);                        }                    }else{                        clearInterval(et);                    }                }, 80);                break;            case 13: // fighter gift                var count = 0;                et = setInterval(function(){                    if(node_exist(enft)){                        setPosition(enft, 'top', getPosition(enft,'top')+Math.abs(step));                        setPosition(enft, 'left', getPosition(enft,'left')+step);                        count<5? count++ : (count=0, step*=-1);                        if(getPosition(enft, 'top')>640 || is_over==1){                            clearInterval(et);                            ft.parentNode.removeChild(enft);                        }                        if(impact(enft, ft) && is_lock==0){    // 奖励与战机相撞                            fighterup();                            ft.parentNode.removeChild(enft);                            clearInterval(et);                        }                    }else{                        clearInterval(et);                    }                }, 80);                break;        }    }    // 销毁    destroy = function(dobj){    // dobj:被销毁的对象        var dest = document.createElement('div');        setClass(dest, 'destroy');        setPosition(dest, 'top', getPosition(dobj, 'top'));        setPosition(dest, 'left', getPosition(dobj, 'left'));        ft.parentNode.appendChild(dest);        if(dobj.id=='fighter'){    // 战机被击中            disp(dobj.id, 'hide');            power = 1;            bombnum = 3;            fighternum--;            setHtml('fighternum', fighternum);            setHtml('bombnum', bombnum);            is_lock = 1;        }else{            dobj.parentNode.removeChild(dobj);        }                var step = 0;        var et = setInterval(function(){            if(step<11){                setBgPosition(dest, step*(-48), 0);                step++;            }else{                if(dobj.id=='fighter'){                    setTimeout(function(){                        if(fighternum>0){                            levelcontinue();                        }else{                            if(curboss!=null){                                obj = curboss['obj'];                                obj.parentNode.removeChild(obj);                            }                            gameover();    //战机全部被击中,游戏结束                        }                    },1000);                }                dest.parentNode.removeChild(dest);                clearInterval(et);            }        }, 50);    }    // boss war    bosswar = function(){        var boss = bossdata[level-1];        var bossft = document.createElement('div');        setClass(bossft, 'boss' + level);        setPosition(bossft, 'left', boss['left']);        setPosition(bossft, 'top', boss['top']);        ft.parentNode.appendChild(bossft);                curboss = {"armor":boss['armor'],"obj":bossft};        switch(level){            case 1: // boss 1            case 2: // boss 2            case 3: // boss 3            case 4: // boss 4            case 5: // boss 5            case 6: // boss 6                var step = -3;                var count = 0;                var et = setInterval(function(){                    if(getPosition(bossft,'top')<50){    // boss 进场                        setPosition(bossft, 'top', getPosition(bossft, 'top')+5);                    }else{                        if(curboss['armor']<=0){    // boss over                            clearInterval(et);                            bossover();                        }else{                            if(step<0){ // 左移动                                if(getPosition(bossft,'left')>10){                                    setPosition(bossft, 'left', getPosition(bossft, 'left')+step);                                }else{                                    step*=-1;                                }                            }                            if(step>0){ // 右移动                                if(getPosition(bossft,'left')<260){                                    setPosition(bossft, 'left', getPosition(bossft, 'left')+step);                                }else{                                    step*=-1;                                }                            }                            if(count>=35 && count%35==0){                                 attack(bossft, 1, 30, 30);                                 attack(bossft, 1, 80, 30);                            }                                                        if(count>=60 && count%60==0){                                attack(bossft, 2, 15, 75);                                attack(bossft, 2, 105, 75);                            }                            if(count>=100 && count%100==0){                                attack(bossft, 3, 60, 92);                            }                            count<8400? count++ : count=0;                        }                    }                }, boss['step']);                break;        }    }    /* attack    * obj  敌机    * type 攻击类型    * left 子弹初始left    * top  子弹初始top    */    attack = function(obj, type, left, top){        if(is_lock==1){            return false;    // 如已锁定不射击        }        var oleft = getPosition(obj, 'left')+left;        var otop = getPosition(obj, 'top')+top;        switch(type){            case 1: //向战机攻击                // 子弹初始位置与战机位置                var opoint = {x:oleft+7, y:otop+7};                var dpoint = {x:getPosition(ft,'left')+25, y:getPosition(ft,'top')+25};                var p = vector(opoint, dpoint, 8);                enftbullet('bullet', oleft, otop, p[0], p[1], 35);                break;            case 2: //直线攻击                var num = 3;                var st = setInterval(function(){                    if(num>0){                        enftbullet('bullet', oleft, otop, 0, 8, 35);                        num --;                    }else{                        clearInterval(st);                    }                }, 150);                break;            case 3: // 散开攻击                var num = 3;                var st = setInterval(function(){                    if(num>0){                        switch(num){                            case 1:                                enftbullet('sbullet', oleft, otop, 0, 8, 35);                                break;                            case 2:                                enftbullet('sbullet', oleft, otop, 3, 8, 35);                                break;                            case 3:                                enftbullet('sbullet', oleft, otop, -3, 8, 35);                                break;                        }                        num --;                    }else{                        clearInterval(st);                    }                }, 0);                break;            case 4: // 小散开攻击                var num = 3;                var st = setInterval(function(){                    if(num>0){                        switch(num){                            case 1:                                enftbullet('bullet', oleft, otop, 0, 8, 35);                                break;                            case 2:                                enftbullet('bullet', oleft, otop, 3, 8, 35);                                break;                            case 3:                                enftbullet('bullet', oleft, otop, -3, 8, 35);                                break;                        }                        num --;                    }else{                        clearInterval(st);                    }                }, 0);                break;        }    }    /* enft bullet    * type 子弹类型    * oleft,otop 子弹初始位置    * left,top 子弹徧移    * speed 速度    */    enftbullet = function(type, oleft, otop, left, top, speed){        var bullet = document.createElement('div');        setClass(bullet, type);        setPosition(bullet, 'left', oleft);        setPosition(bullet, 'top', otop);        ft.parentNode.appendChild(bullet);        var et = setInterval(function(){            setPosition(bullet, 'top', getPosition(bullet,'top')+top);            setPosition(bullet, 'left', getPosition(bullet,'left')+left);            if(getPosition(bullet,'left')>400 || getPosition(bullet,'left')<-30 || getPosition(bullet,'top')<-30 || getPosition(bullet,'top')>640 || is_lock==1 || is_clear==1){                clearInterval(et);                ft.parentNode.removeChild(bullet);            }            impact_handle(bullet, et);        }, speed);    }    // boss over    bossover = function(){        obj = curboss['obj'];        obj.parentNode.removeChild(obj);        scoreup(6); // boss score        var dest = document.createElement('div');        setClass(dest, 'destroyboss');        setPosition(dest, 'top', getPosition(obj, 'top'));        setPosition(dest, 'left', getPosition(obj, 'left'));        ft.parentNode.appendChild(dest);        var step = 0;        var et = setInterval(function(){            if(step<21){                setBgPosition(dest, step*(-150), 0);            }else if(step==21){                dest.parentNode.removeChild(dest);            }else if(step==50){                clearInterval(et);                levelup();            }            step++;        }, 50);    }    // continue    levelcontinue = function(){        reset_fighter();        disp(ft.id, 'show');        setProtect();        fighter_init();    }    // 过关    levelup = function(){        keypriority = {};        enemydata = [];        curboss = null;        level ++;        bgsound('pass', false);        var processed = 0;        var et = setInterval(function(){            is_lock = 1;            processed = processed + 15;                        if(getPosition(ft, 'top')>-50){                setPosition(ft, 'top', getPosition(ft, 'top')-15);            }                        if(processed>=2500){                clearInterval(et);                disp(ft.id, 'hide');                                if(level<=map.length){                    bgchange(0);                    msg_show();                    setTimeout(function(){                        msg_hide();                        start();                    }, 1500);                }else{                    gameclear();    // 通关                }            }        }, 25);    }    // 更新分数    scoreup = function(type){        if(typeof(scoretag[type])!='undefined'){            score = score + scoretag[type] * level;            setHtml('score', score);            if(score > hiscore){                hiscore = score;                setHtml('hiscore', hiscore);            }        }    }    // 子弹升级    powerup = function(){        power = power+1>4? 4 : power+1;    }        // 炸弹增加    bombup = function(){        bombnum ++;        setHtml('bombnum', bombnum);    }    // 战机增加    fighterup = function(){        fighternum ++;        setHtml('fighternum', fighternum);    }    // 保护状态    setProtect = function(){        is_protect = 1;        if(is_pile==1){            setClass(ft, 'fighter_sp');        }else{            setClass(ft, 'fighter_p');        }        setTimeout(function(){            is_protect = 0;            if(is_pile==1){                setClass(ft, 'fighter_s');            }else{                setClass(ft, 'fighter');            }        }, 3000)    }    // 碰撞处理    impact_handle = function(obj, et){    // et 定时器        if(impact(obj, ft) && is_lock==0){    // 产生碰撞            if(is_protect==0){                destroy(ft);                clearInterval(et);                ft.parentNode.removeChild(obj);            }        }    }    // 全部通关    gameclear = function(){        is_over = 1;        disp('gameclear', 'show');        setHtml('clearcon', 'Game Clear' + '<br>' + 'SCORE : ' + score);        bgsound('clear', false);        bgchange('clear');        setTimeout(function(){            bgsound();            init();        }, 16000);    }    // 游戏结束    gameover = function(){        is_over = 1;        disp('gameover', 'show');        setHtml('overcon', 'LEVEL : ' + level + '<br>' + 'SCORE : ' + score);        bgsound('over', false);        bgchange('over');        failtimes++;        setTimeout(function(){            if(failtimes==3){                alert('在游戏开始画面依次输入 ↑ ↑ ↓ ↓ ← → ← → a s a s，再开始游戏，会有惊喜^_^');            }            bgsound();            init();        }, 8000);    }    // 显示讯息    msg_show = function(){        setHtml('level', 'LEVEL - ' + level);        disp('level', 'show');        is_lock = 1;    }    // 隐藏讯息    msg_hide = function(){        disp('level', 'hide');    }    // 重置    reset = function(){        is_start = 0;        is_bombing = 0;        is_lock = 1;        is_over = 0;        is_clear = 0;        is_protect = 0;        level = 1;        power = 1;        ackey = {};        keypriority = {};        enemydata = [];        score = 0;        fighternum = 3;        bombnum = 3;        setHtml('hiscore', hiscore);        setHtml('score', score);        setHtml('fighternum', fighternum);        setHtml('bombnum', bombnum);        reset_fighter();        reset_pile();        disp('op', 'show');        disp('gameover', 'hide');        disp('gameclear', 'hide');        bgchange(0);    }    // 重置战机位置    reset_fighter = function(){        setPosition(ft, 'top', 640);        setPosition(ft, 'left', 175);        setClass(ft, 'fighter');    }    // 重置蓄力    reset_pile = function(){        is_pile = 0;        pilenum = 0;        if(is_protect==1){            setClass(ft, 'fighter_p');        }else{            setClass(ft, 'fighter');        }    }    // 战机初始化    fighter_init = function(){        var et = setInterval(function(){            if(getPosition(ft, 'top')>400){                setPosition(ft, 'top', getPosition(ft, 'top')-12);            }else{                clearInterval(et);                is_lock = 0;                action();            }        }, 30);    }    // 密技30命    cheat = function(){        if(cheatcode.join(',')=='38,38,40,40,37,39,37,39,65,83,65,83,13'){            fighternum = 30;            setHtml('fighternum', fighternum);        }        cheatcode = [];    }    // 背景控制    bgmove = function(obj){        var step = 1;        var et = setInterval(function(){            var bgpos = getBgPosition(obj);            if(bgpos['top']==640){                setBgPosition(obj, 0, 0);    // reset            }else{                setBgPosition(obj, bgpos['left'], bgpos['top']+step);            }        }, 50);    }    // 背景切换    bgchange = function(file){        var obj = $('gameplane');        setClass(obj, 'gameplane bg'+file);    }    // 音乐控制    bgsound = function(file, loop){        var id = 'audioplayer';                if(typeof(file)!='undefined'){            if(typeof(loop)=='undefined'){                loop = false;            }            var audiofile = [];            audiofile['mp3'] = 'music/' + file + '.mp3';            audiofile['ogg'] = 'music/' + file + '.ogg';            audioplayer(id, audiofile , loop);        }else{            audioplayer(id);        }    }    return this;})();