varPiece=function(game){
//游戏对象
this.game=game;
//是否为边缘元素
this.isEdge=false;
//是否挨着边缘元素
this.atEdge=false;
//图片dom元素
this.dom=null;
//图片元素
this.img=null;
//图片元素来源
this.src=null;
//轨迹元素
this.track=null;
//是否可以作为轨迹
this.isTracked=false;
//选中标记元素
this.selected=null;
//图片横向排列
this.x=0;
//图片纵向排列
this.y=0;
//图片闪烁Id
this.flashId=null;
//图片是否点击
this.onClicked=false;
//闪烁次数
this.flashCount=0;
this.init();
}
Piece.prototype={
//初始化
init:function(){
this.dom=document.createElement("div");
this.dom.className="piece";
this.selected=document.createElement("img");
},
//初始化图片
initImg:function(){
this.img=document.createElement("img");
this.dom.appendChild(this.img);
},
//满足算法后初始化track元素
initTrack:function(){
if(this.flashId!=null){
//停止闪烁
this.stopFlash();
}
//alert("initTrackmiddle");
if(this.track!=null){
return;
}
this.onClicked=false;
this.dom.removeChild(this.img);
this.track=document.createElement("div");
this.track.className="track";
this.dom.appendChild(this.track);
},
//位图片设置来源
setImgSrc:function(src){
this.src=src;
},
//为图片设置二维排列位置
setPosition:function(x,y){
this.x=x;
this.y=y;
},
//为图片设置选中元素
setSelected:function(){
if(this.flashCount++%2==0){
//this.dom.removeChild(this.img);
//this.selected.src="img/selected.gif";
//this.dom.appendChild(this.selected);
this.img.src="img/pieces/flash.gif";
}else{
//if(this.selected!=null){
//this.dom.removeChild(this.selected);
//}
this.img.src=this.src;
//this.dom.appendChild(this.img);
}
},
//设置是否为边缘元素
setEdge:function(isEdge){
this.isEdge=isEdge;
},
//设置是否挨着边缘元素
setAtEdge:function(atEdge){
this.atEdge=atEdge;
},
//开始闪烁
flash:function(){
var_this=this;
this.flashId=setInterval(function(){_this.setSelected();},500);
},
//停止闪烁
stopFlash:function(){
clearInterval(this.flashId);
if(this.flashCount%2==1){
//if(this.selected!=null){
//this.dom.removeChild(this.selected);
//}
this.img.src=this.src;
//this.dom.appendChild(this.img);
}
},
//对象被选择的内部函数
onClick:function(){
if(this.onClicked){
return;
}
var_this=this;
this.img.οnclick=function(){
if(!document.getElementById("start").disabled){
return;
}
if(_this.onClicked){
return;
}
if(_this.checkPiece()){
return;
}
_this.flash();
_this.onClicked=true;
};
},
//检查是否有被点击的图片
checkPiece:function(){
for(vari=0;i
if(this.game.pieceList[i].onClicked&&!this.game.pieceList[i].equal(this)){
if(this.game.pieceList[i].equalImage(this)){
//alert("ThesameImage");
this.searchTrack(this.game.pieceList[i]);
}else{
this.game.pieceList[i].stopFlash();
this.game.pieceList[i].onClicked=false;
this.onClicked=false;
returnfalse;
}
returntrue;
}else{
continue;
}
}
returnfalse;
},
//是否为同一个对象
equal:function(piece){
return(this.x==piece.x&&this.y==piece.y);
},
//是否为同一个图片
equalImage:function(piece){
returnthis.src==piece.src;
},
//搜寻路径
searchTrack:function(piece){
if(this.isNear(piece)){
this.linkTrack(piece);
return;
}
if(this.isReach(piece)||this.isReach2(piece)){
this.linkTrack(piece);
return;
}
},
//是否相邻
isNear:function(piece){
vara=(Math.abs(piece.x-this.x)==1)&&(piece.y==this.y)
||(Math.abs(piece.y-this.y)==1)&&(piece.x==this.x);
returna;
},
//直线
isStraightReach:function(piece){
//alert("isStraightReach");
if(this.isNear(piece)){
returntrue;
}
vara=false;
varb=false;
//沿y轴方向搜索
if(this.x==piece.x){
//alert("!!!!!!!!!!!");
for(vari=this.min(this.y,piece.y)+1;i
//alert("this.x==piece.x:"+piece.x+","+i);
if(this.game.pieceMap.get(piece.x+","+i).isPass()){
a=true;
this.game.trackList.push(this.game.pieceMap.get(piece.x+","+i));
continue;
}else{
a=false;
this.game.trackList=[];
returna;
}
}
}
//沿x轴方向搜索
if(this.y==piece.y){
//alert("!!!!!!!!!!!");
for(vari=this.min(this.x,piece.x)+1;i
//alert("this.y==piece.y:"+i+","+piece.y);
if(this.game.pieceMap.get(i+","+piece.y).isPass()){
b=true;
this.game.trackList.push(this.game.pieceMap.get(i+","+piece.y));
continue;
}else{
b=false
this.game.trackList=[];
returnb;
}
}
}
returna||b;
},
//拐一次弯搜索
isReach1:function(piece){
//alert("isReach1");
varcorner_1=this.game.pieceMap.get(this.x+","+piece.y);
varcorner_2=this.game.pieceMap.get(piece.x+","+this.y);
var_this=this;
if((_this.isStraightReach(corner_1))
&&(corner_1.isStraightReach(piece))
&&corner_1.isPass()){
//alert("corner_1:"+this.x+","+piece.y);
this.game.trackList.push(corner_1);
returntrue;
}
if((_this.isStraightReach(corner_2))
&&(corner_2.isStraightReach(piece))
&&corner_2.isPass()){
//alert("corner_2:"+piece.x+","+this.y);
this.game.trackList.push(corner_2);
returntrue;
}
returnfalse;
},
//直接或拐一次弯搜索
isReach:function(piece){
vara=this.isStraightReach(piece);
varb=this.isReach1(piece);
returna||b;
},
//拐两次弯搜索
isReach2:function(piece){
//沿x轴正向搜索
for(vari=this.x+1;i<17;i++){
if(!this.game.pieceMap.get(i+","+this.y).isPass()){
this.game.trackList=[];
break;
}elseif(this.game.pieceMap.get(i+","+this.y).isReach(piece)
&&this.game.pieceMap.get(i+","+this.y).isPass()){
this.game.trackList.push(this.game.pieceMap.get(i+","+this.y));
returntrue;
}
}
//沿x轴搜索
for(vari=this.x-1;i>=0;i--){
if(!this.game.pieceMap.get(i+","+this.y).isPass()){
this.game.trackList=[];
break;
}elseif(this.game.pieceMap.get(i+","+this.y).isReach(piece)
&&this.game.pieceMap.get(i+","+this.y).isPass()){
this.game.trackList.push(this.game.pieceMap.get(i+","+this.y));
returntrue;
}
}
//沿y轴搜索
for(vari=this.y-1;i>=0;i--){
if(!this.game.pieceMap.get(this.x+","+i).isPass()){
this.game.trackList=[];
break;
}elseif(this.game.pieceMap.get(this.x+","+i).isReach(piece)
&&this.game.pieceMap.get(this.x+","+i).isPass()){
this.game.trackList.push(this.game.pieceMap.get(this.x+","+i));
returntrue;
}
}
//沿y轴正向搜索
for(vari=this.y+1;i<12;i++){
if(!this.game.pieceMap.get(this.x+","+i).isPass()){
this.game.trackList=[];
break;
}elseif(this.game.pieceMap.get(this.x+","+i).isReach(piece)
&&this.game.pieceMap.get(this.x+","+i).isPass()){
this.game.trackList.push(this.game.pieceMap.get(this.x+","+i));
returntrue;
}
}
returnfalse;
},
//路径连接
linkTrack:function(piece){
this.initTrack();
piece.initTrack();
this.changeScore();
this.showTrack(piece);
},
//显示足迹
showTrack:function(piece){
this.game.trackList.push(piece);
this.track.className="track2";
for(vari=0;i
//alert(i);
this.game.trackList[i].track.className="track2";
}
var_this=this;
setTimeout(function(){_this.hideTrack()},500);
},
//隐匿足迹
hideTrack:function(){
for(vari=0;i
this.game.trackList[i].track.className="track";
}
this.game.trackList=[];
this.track.className="track";
this.isTracked=true;
},
//分数增加
changeScore:function(){
this.game.score+=100;
document.getElementById("score").innerHTML=this.game.score;
},
min:function(a,b){
if(a
returna;
}else{
returnb;
}
},
max:function(a,b){
if(a>b){
returna;
}else{
returnb;
}
},
//判断是否通过
isPass:function(){
returnthis.track!=null;
}
}
