var scores=;
/*
 創(chuàng)建飛機類
 */
function plan(hp,X,Y,sizeX,sizeY,score,dietime,sudu,boomimage,imagesrc){
 this.planX=X;
 this.planY=Y;
 this.imagenode=null;
 this.planhp=hp;
 this.planscore=score;
 this.plansizeX=sizeX;
 this.plansizeY=sizeY;
 this.planboomimage=boomimage;
 this.planisdie=false;
 this.plandietimes=;
 this.plandietime=dietime;
 this.plansudu=sudu;

//行為

/*
移動行為
 */
 this.planmove=function(){
 if(scores<=){
 this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+"px";
 }
 else if(scores>&&scores<=){
 this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu++"px";
 }
 else if(scores>&&scores<=){
 this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu++"px";
 }
 else if(scores>&&scores<=){
 this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu++"px";
 }
 else if(scores>&&scores<=){
 this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu++"px";
 }
 else{
 this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu++"px";
 }
 }
 this.init=function(){
 this.imagenode=document.Element("img");
 this.imagenode.style.left=this.planX+"px";
 this.imagenode.style.top=this.planY+"px";
 this.imagenode.src=imagesrc;
 mainDiv.appendChild(this.imagenode);
 }
 this.init();
}
/*
創(chuàng)建子彈類
 */
function bullet(X,Y,sizeX,sizeY,imagesrc){
 this.bulletX=X;
 this.bulletY=Y;
 this.bulletimage=null;
 this.bulletattach=;
 this.bulletsizeX=sizeX;
 this.bulletsizeY=sizeY;


//行為
/*
 移動行為
 */
 this.bulletmove=function(){
 this.bulletimage.style.top=this.bulletimage.offsetTop-+"px";
 }
 this.init=function(){
 this.bulletimage=document.Element("img");
 this.bulletimage.style.left= this.bulletX+"px";
 this.bulletimage.style.top= this.bulletY+"px";
 this.bulletimage.src=imagesrc;
 mainDiv.appendChild(this.bulletimage);
 }
 this.init();
}
/*
 創(chuàng)建單行子彈類
 */
function oddbullet(X,Y){
 bullet.call(this,X,Y,,,"image/bullet.png");
}


/*
創(chuàng)建敵機類
 */


function enemy(hp,a,b,sizeX,sizeY,score,dietime,sudu,boomimage,imagesrc){
 plan.call(this,hp,random(a,b),-,sizeX,sizeY,score,dietime,sudu,boomimage,imagesrc);
}


//產(chǎn)生min到max之間的隨機數(shù)


function random(min,max){
 return Math.floor(min+Math.random()*(max-min));
}


/*
創(chuàng)建本方飛機類
 */


function ourplan(X,Y){
 var imagesrc="image/我的飛機.gif";
 plan.call(this,,X,Y,,,,,,"image/本方飛機爆炸.gif",imagesrc);
 this.imagenode.setAttribute('id','ourplan');
}


/*
 創(chuàng)建本方飛機
 */


var selfplan=new ourplan(,);


//移動事件


var ourPlan=document.getElementById('ourplan');
var yidong=function(){
 var oevent=window.event||arguments[];
 var chufa=oevent.srcElement||oevent.target;
 var selfplanX=oevent.clientX-;
 var selfplanY=oevent.clientY;
 ourPlan.style.left=selfplanX-selfplan.plansizeX/+"px";
 ourPlan.style.top=selfplanY-selfplan.plansizeY/+"px";


// document.getElementsByTagName('img')[].style.left=selfplanX-selfplan.plansizeX/+"px";


// document.getElementsByTagName('img')[]..style.top=selfplanY-selfplan.plansizeY/+"px";


}


/*
暫停事件
 */
var number=;
var zanting=function(){
 if(number==){
 suspenddiv.style.display="block";
 if(document.removeEventListener){
 mainDiv.removeEventListener("mousemove",yidong,true);
 bodyobj.removeEventListener("mousemove",bianjie,true);
 }
 else if(document.detachEvent){
 mainDiv.detachEvent("onmousemove",yidong);
 bodyobj.detachEvent("onmousemove",bianjie);
 }
 clearInterval(set);
 number=;
 }
 else{
 suspenddiv.style.display="none";
 if(document.addEventListener){
 mainDiv.addEventListener("mousemove",yidong,true);
 bodyobj.addEventListener("mousemove",bianjie,true);
 }
 else if(document.attachEvent){
 mainDiv.attachEvent("onmousemove",yidong);
 bodyobj.attachEvent("onmousemove",bianjie);
 }
 set=setInterval(start,);
 number=;
 }
}
//判斷本方飛機是否移出邊界,如果移出邊界,則取消mousemove事件,反之加上mousemove事件
var bianjie=function(){
 var oevent=window.event||arguments[];
 var bodyobjX=oevent.clientX;
 var bodyobjY=oevent.clientY;
 if(bodyobjX<||bodyobjX>||bodyobjY<||bodyobjY>){
 if(document.removeEventListener){
 mainDiv.removeEventListener("mousemove",yidong,true);
 }
 else if(document.detachEvent){
 mainDiv.detachEvent("onmousemove",yidong);
 }
 }
 else{
 if(document.addEventListener){
 mainDiv.addEventListener("mousemove",yidong,true);
 }
 else if(document.attachEvent){
 mainDiv.attachEvent("nomousemove",yidong);
 }
 }
}

//function chongxinkaishi(){
// location.reload(true);
// startdiv.style.display="none";
// maindiv.style.display="block";
//}

var bodyobj=document.getElementsByTagName("body")[];
if(document.addEventListener){
 //為本方飛機添加移動和暫停
 mainDiv.addEventListener("mousemove",yidong,true);
 //為本方飛機添加暫停事件
 selfplan.imagenode.addEventListener("click",zanting,true);
 //為body添加判斷本方飛機移出邊界事件
 bodyobj.addEventListener("mousemove",bianjie,true);
 //為暫停界面的繼續(xù)按鈕添加暫停事件
 suspenddiv.getElementsByTagName("button")[].addEventListener("click",zanting,true);
// suspenddiv.getElementsByTagName("button")[].addEventListener("click",chongxinkaishi,true);
 //為暫停界面的返回主頁按鈕添加事件
 suspenddiv.getElementsByTagName("button")[].addEventListener("click",jixu,true);
}
else if(document.attachEvent){
 //為本方飛機添加移動
 mainDiv.attachEvent("onmousemove",yidong);
 //為本方飛機添加暫停事件
 selfplan.imagenode.attachEvent("onclick",zanting);
  //為body添加判斷本方飛機移出邊界事件
 bodyobj.attachEvent("onmousemove",bianjie);
 //為暫停界面的繼續(xù)按鈕添加暫停事件
 suspenddiv.getElementsByTagName("button")[].attachEvent("onclick",zanting);
// suspenddiv.getElementsByTagName("button")[].attachEvent("click",chongxinkaishi,true);
 //為暫停界面的返回主頁按鈕添加事件
 suspenddiv.getElementsByTagName("button")[].attachEvent("click",jixu,true);
}
//初始化隱藏本方飛機
selfplan.imagenode.style.display="none";
/*
敵機對象數(shù)組
 */
var enemys=[];
/*
子彈對象數(shù)組
 */
var bullets=[];
var mark=;
var mark=;
var backgroundPositionY=;
/*
開始函數(shù)
 */
function start(){
 mainDiv.style.backgroundPositionY=backgroundPositionY+"px";
 backgroundPositionY+=.;
 if(backgroundPositionY==){
 backgroundPositionY=;
 }
 mark++;
 /*
 創(chuàng)建敵方飛機
 */
 if(mark==){
 mark++;
  //中飛機
 if(mark%==){
 enemys.push(new enemy(,,,,,,,random(,),"image/中飛機爆炸.gif","image/enemy_fly_.png"));
 }
  //大飛機
 if(mark==){
 enemys.push(new enemy(,,,,,,,,"image/大飛機爆炸.gif","image/enemy_fly_.png"));
 mark=;
 }
 //小飛機
 else{
 enemys.push(new enemy(,,,,,,,random(,),"image/小飛機爆炸.gif","image/enemy_fly_.png"));
 }
 mark=;
 }
/*
移動敵方飛機
 */
 var enemyslen=enemys.length;
 for(var i=;i<enemyslen;i++){
 if(enemys[i].planisdie!=true){
 enemys[i].planmove();
 }
/*
 如果敵機超出邊界,刪除敵機
 */
 if(enemys[i].imagenode.offsetTop>){
 mainDiv.removeChild(enemys[i].imagenode);
 enemys.splice(i,);
 enemyslen--;
 }
 //當(dāng)敵機死亡標(biāo)記為true時，經(jīng)過一段時間后清除敵機
 if(enemys[i].planisdie==true){
 enemys[i].plandietimes+=;
 if(enemys[i].plandietimes==enemys[i].plandietime){
 mainDiv.removeChild(enemys[i].imagenode);
 enemys.splice(i,);
 enemyslen--;
 }
 }
 }
/*
創(chuàng)建子彈
*/
 if(mark%==){
 bullets.push(new oddbullet(parseInt(selfplan.imagenode.style.left)+,parseInt(selfplan.imagenode.style.top)-));
 }
/*
移動子彈
*/
 var bulletslen=bullets.length;
 for(var i=;i<bulletslen;i++){
 bullets[i].bulletmove();
/*
如果子彈超出邊界,刪除子彈
*/
 if(bullets[i].bulletimage.offsetTop<){
 mainDiv.removeChild(bullets[i].bulletimage);
 bullets.splice(i,);
 bulletslen--;
 }
 }
/*
碰撞判斷
*/
 for(var k=;k<bulletslen;k++){
 for(var j=;j<enemyslen;j++){
 //判斷碰撞本方飛機
 if(enemys[j].planisdie==false){
 if(enemys[j].imagenode.offsetLeft+enemys[j].plansizeX>=selfplan.imagenode.offsetLeft&&enemys[j].imagenode.offsetLeft<=selfplan.imagenode.offsetLeft+selfplan.plansizeX){
  if(enemys[j].imagenode.offsetTop+enemys[j].plansizeY>=selfplan.imagenode.offsetTop+&&enemys[j].imagenode.offsetTop<=selfplan.imagenode.offsetTop-+selfplan.plansizeY){
  //碰撞本方飛機，游戲結(jié)束，統(tǒng)計分?jǐn)?shù)
  selfplan.imagenode.src="image/本方飛機爆炸.gif";
  enddiv.style.display="block";
  planscore.innerHTML=scores;
  if(document.removeEventListener){
  mainDiv.removeEventListener("mousemove",yidong,true);
  bodyobj.removeEventListener("mousemove",bianjie,true);
  }
  else if(document.detachEvent){