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诘屈聱牙之javascript中国象棋_javascript技巧

IE6.0 Only
非XHTML标准，可能IE 7.0也看不了....哈哈
蓝方先走

<style> 
* { font:24px arial, "宋体"; font-weight:bold; color:white; cursor:default; } 
table { table-layout:fixed; border-collapse:collapse; position:absolute; left:50px; top:50px; } 
td { width:80px; height:80px; border:1px solid silver; color:black; text-align:center; line-height:80px; }

img.i1 { width:78px; height:78px; } 
img.i2 { width:49px; height:49px; } 
img.i3 { width:25px; height:49px; }

.chessman_red { background:url(/attachments/2007/3/29/20070329_2187cc5e9def581951f2v22EfdUSXQ7J.jpg); width:50px; height:50px; line-height:50px; text-align:center; } 
.chessman_blue { background:url(/attachments/2007/3/29/20070329_5caa80c54f776b93bd582BwraVRWXf43.jpg); width:50px; height:50px; line-height:50px; text-align:center; } 
</style> 
<script> 
var tb; 
var cch=new Array(); 
var his=new Array(); 
var players=["red","blue"]; 
var curPlayer=1;

window.onload=function(){ 
     
    document.onselectstart=function(){ return(false); } 
     
    document.onclick=do_click; 
    document.oncontextmenu=do_context; 
     
    tb=document.createElement("table"); 
    document.body.appendChild(tb); 
     
    for(var i=0;i<9;i++){ 
        r=tb.insertRow(); 
        if(i==4){ 
            c=r.insertCell(); 
            c.colSpan=8; 
            c.style.width="720px"; 
            c.style.fontSize="42px"; 
            c.style.fontFamily="隶书"; 
            c.innerText="楚   河                汉   界"; 
            continue; 
        } 
        for(var j=0;j<8;j++){ 
            c=r.insertCell(); 
        } 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_3f2ffb6cdf0bda991381AOcfwLJOmIcK.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="291"; 
        top="51"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_fec757c6d7874546161f8TGsDqEABNts.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="371"; 
        top="51"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_fec757c6d7874546161f8TGsDqEABNts.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="291"; 
        top="131"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_3f2ffb6cdf0bda991381AOcfwLJOmIcK.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="371"; 
        top="131"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_3f2ffb6cdf0bda991381AOcfwLJOmIcK.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="291"; 
        top="611"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_fec757c6d7874546161f8TGsDqEABNts.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="371"; 
        top="611"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_fec757c6d7874546161f8TGsDqEABNts.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="291"; 
        top="691"; 
    } 
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_3f2ffb6cdf0bda991381AOcfwLJOmIcK.jpg"; 
    tmp.className="i1"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="371"; 
        top="691"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="106"; 
        top="186"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="586"; 
        top="186"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="106"; 
        top="586"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="586"; 
        top="586"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="186"; 
        top="266"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="346"; 
        top="266"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="506"; 
        top="266"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="186"; 
        top="506"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="346"; 
        top="506"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0bf3ba9aa9f7af079806V71jCPmo4YgX.jpg"; 
    tmp.className="i2"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="506"; 
        top="506"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0b05dbadff2eb90fdc79Ftu6O43rTus6.jpg"; 
    tmp.className="i3"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="50"; 
        top="266"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_0b05dbadff2eb90fdc79Ftu6O43rTus6.jpg"; 
    tmp.className="i3"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="50"; 
        top="506"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_f751e991e2d883fd916262Mzpct8ylkt.jpg"; 
    tmp.className="i3"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="665"; 
        top="266"; 
    } 
     
    tmp=new Image(); 
    tmp.src="/attachments/2007/3/29/20070329_f751e991e2d883fd916262Mzpct8ylkt.jpg"; 
    tmp.className="i3"; 
    document.body.appendChild(tmp); 
    with(tmp.style){ 
        position="absolute"; 
        left="665"; 
        top="506"; 
    } 
     
     
    createChessman("車",0,0,"red"); 
    createChessman("車",8,0,"red"); 
    createChessman("馬",1,0,"red"); 
    createChessman("馬",7,0,"red"); 
    createChessman("炮",1,2,"red"); 
    createChessman("炮",7,2,"red"); 
    createChessman("相",2,0,"red"); 
    createChessman("相",6,0,"red"); 
    createChessman("仕",3,0,"red"); 
    createChessman("仕",5,0,"red"); 
    createChessman("帅",4,0,"red"); 
    createChessman("兵",0,3,"red"); 
    createChessman("兵",2,3,"red"); 
    createChessman("兵",4,3,"red"); 
    createChessman("兵",6,3,"red"); 
    createChessman("兵",8,3,"red"); 
     
    createChessman("車",0,9,"blue"); 
    createChessman("車",8,9,"blue"); 
    createChessman("馬",1,9,"blue"); 
    createChessman("馬",7,9,"blue"); 
    createChessman("炮",1,7,"blue"); 
    createChessman("炮",7,7,"blue"); 
    createChessman("象",2,9,"blue"); 
    createChessman("象",6,9,"blue"); 
    createChessman("士",3,9,"blue"); 
    createChessman("士",5,9,"blue"); 
    createChessman("将",4,9,"blue"); 
    createChessman("卒",0,6,"blue"); 
    createChessman("卒",2,6,"blue"); 
    createChessman("卒",4,6,"blue"); 
    createChessman("卒",6,6,"blue"); 
    createChessman("卒",8,6,"blue"); 
     
     
}

function createChessman(text,x,y,player){ 
    var nd=document.createElement("div"); 
    nd.className="chessman_"+player; 
    nd.innerText=text; 
    nd.player=player; 
     
    nd.moveTo=chessman_moveTo; 
    nd.destory=chessman_destory; 
     
    document.body.appendChild(nd); 
     
    nd.moveTo(x,y,true); 
     
}

function chessman_moveTo(x,y,force){ 
    var mi, ma, mn; 
    if(!force){ 
        switch(this.innerText){ 
            case "車": 
                if(this.x!=x&&this.y!=y)return(false); 
                if(this.x==x){ 
                    mi=y>this.y?this.y:y; 
                    ma=y>this.y?y:this.y; 
                    for(var i=mi+1;i<ma;i++)if(cch[i*9+this.x])return(false); 
                }else{ 
                    mi=x>this.x?this.x:x; 
                    ma=x>this.x?x:this.x; 
                    for(var i=mi+1;i<ma;i++)if(cch[this.y*9+i])return(false); 
                } 
            break; 
            case "馬": 
                if(!((Math.abs(this.x-x)==2&&Math.abs(this.y-y)==1)||(Math.abs(this.x-x)==1&&Math.abs(this.y-y)==2)))return(false); 
                if(Math.abs(this.x-x)==2&&cch[this.y*9+(this.x+x)/2])return(false); 
                if(Math.abs(this.y-y)==2&&cch[(this.y+y)/2*9+this.x])return(false); 
            break; 
            case "士": case "仕": 
                if(x<3||x>5||(!(y<3||y>6))||Math.abs(this.x-x)!=1||Math.abs(this.y-y)!=1)return(false); 
            break; 
            case "相": 
                if(Math.abs(this.x-x)!=2||Math.abs(this.y-y)!=2||y>4)return(false); 
                if(cch[(this.y+y)/2*9+(this.x+x)/2])return(false); 
            break; 
            case "象": 
                if(Math.abs(this.x-x)!=2||Math.abs(this.y-y)!=2||y<5)return(false); 
                if(cch[(this.y+y)/2*9+(this.x+x)/2])return(false); 
            break; 
            case "帅": case "将": 
                if(x<3||x>5||(!(y<3||y>6))||(!((Math.abs(this.x-x)==1&&Math.abs(this.y-y)==0)||(Math.abs(this.x-x)==0&&Math.abs(this.y-y)==1))))return(false); 
            break; 
            case "兵": 
                //if(curPlayer%2==0){ 
                    if(y<5){ 
                        if(y-this.y!=1)return(false); 
                    }else{ 
                        if(!((y-this.y==1&&x==this.x)||(y==this.y&&Math.abs(this.x-x)==1)))return(false); 
                    } 
                    break; 
                //}else{ 
                    if(y>4){ 
                        if(y-this.y!=-1)return(false); 
                    }else{ 
                        if(!((y-this.y==-1&&x==this.x)||(y==this.y&&Math.abs(this.x-x)==1)))return(false); 
                    } 
                //} 
            break; 
            case "卒": 
                //if(curPlayer%2==0){ 
                    if(y>4){ 
                        if(y-this.y!=-1)return(false); 
                    }else{ 
                        if(!((y-this.y==-1&&x==this.x)||(y==this.y&&Math.abs(this.x-x)==1)))return(false); 
                    } 
                    break; 
                //}else{ 
                    if(y<5){ 
                        if(y-this.y!=1)return(false); 
                    }else{ 
                        if(!((y-this.y==1&&x==this.x)||(y==this.y&&Math.abs(this.x-x)==1)))return(false); 
                    } 
                     
                //} 
            break; 
            case "炮": 
                if(this.x!=x&&this.y!=y)return(false); 
                if(cch[y*9+x]&&cch[y*9+x].player!=this.player){ 
                    mn=0; 
                    if(this.x==x){ 
                        mi=y>this.y?this.y:y; 
                        ma=y>this.y?y:this.y; 
                        for(var i=mi+1;i<ma;i++)if(cch[i*9+this.x])mn++; 
                        if(mn!=1)return(false); 
                    }else{ 
                        mi=x>this.x?this.x:x; 
                        ma=x>this.x?x:this.x; 
                        for(var i=mi+1;i<ma;i++)if(cch[this.y*9+i])mn++; 
                        if(mn!=1)return(false); 
                    } 
                }else{ 
                    if(this.x==x){ 
                        mi=y>this.y?this.y:y; 
                        ma=y>this.y?y:this.y; 
                        for(var i=mi+1;i<ma;i++)if(cch[i*9+this.x])return(false); 
                    }else{ 
                        mi=x>this.x?this.x:x; 
                        ma=x>this.x?x:this.x; 
                        for(var i=mi+1;i<ma;i++)if(cch[this.y*9+i])return(false); 
                    } 
                } 
            break; 
            case "": 
             
            break; 
        } 
    } 
     
    cch[this.y*9+this.x]=null; 
    cch[y*9+x]=this; 
     
    if(!force)his.push("move "+this.player+" "+this.innerText+" "+this.x+","+this.y+" "+x+","+y); 
    this.style.position="absolute"; 
    this.style.left=25+x*80; 
    this.style.top=25+y*80; 
    this.x=x; 
    this.y=y; 
    return(true); 
}

function chessman_destory(){ 
    var tmp; 
    his.push("destory "+this.player+" "+this.innerText+" "+this.x+","+this.y); 
    tmp=document.createElement("div"); 
    tmp.className="chessman_"+this.player; 
    tmp.innerText=this.innerText; 
    tmp.style.float="left"; 
    eval("d_his_"+this.player).appendChild(tmp); 
     
    this.parentNode.removeChild(this); 
     
}

function exchange(){ 
    var x, y; 
    var ccch=new Array(); 
    for(var i=0;i<cch.length;i++){ 
        if(!cch[i])continue; 
        x=i%9; 
        y=parseInt(i/9); 
        ccch[(9-y)*9+x]=cch[i]; 
    } 
    for(var i=0;i<ccch.length;i++){ 
        if(!ccch[i])continue; 
        x=i%9; 
        y=parseInt(i/9); 
        ccch[i].moveTo(x,y,true); 
    } 
    cch=ccch; 
}

function do_click(){ 
    var x, y; 
    var o=event.srcElement; 
     
    if(o.player){ 
        if(document.currentChessman){ 
            if(document.currentChessman.player==o.player){ 
                document.currentChessman.style.border=""; 
                document.currentChessman=o; 
                document.currentChessman.style.border="1px solid "+document.currentChessman.player; 
            }else{ 
                if(!document.currentChessman.moveTo(o.x,o.y))return; 
                o.destory(); 
                document.currentChessman.style.border=""; 
                document.currentChessman=null; 
                //exchange(); 
                curPlayer++; 
            } 
        }else{ 
            if(o.player!=players[curPlayer%2])return; 
            document.currentChessman=o; 
            document.currentChessman.style.border="1px solid "+document.currentChessman.player; 
        } 
    }else{ 
        if(document.currentChessman){ 
            if(((event.x-50)%80>25&&(event.x-50)%80<55)||((event.y-50)%80>25&&(event.y-50)%80<55))return; 
            x=Math.round((event.x+document.body.scrollLeft-50)/80); 
            y=Math.round((event.y+document.body.scrollTop-50)/80); 
            if(x>-1&&x<9&&y>-1&&y<10){ 
                if(!document.currentChessman.moveTo(x,y))return; 
                document.currentChessman.style.border=""; 
                document.currentChessman=null; 
                //exchange(); 
                curPlayer++; 
            } 
        } 
    } 
}

function do_context(){ 
    if(document.currentChessman){ 
        document.currentChessman.style.border=""; 
        document.currentChessman=null; 
        return(false); 
    } 
}

function undo(){ 
    var o, s, t, p, x1, x2, x3, y1, y2, y3; 
    if(his.length==0)return; 
    s=his.pop().split(" "); 
    if(s[0]=="move"){ 
        x1=Number(s[3].split(",")[0]); 
        y1=Number(s[3].split(",")[1]); 
        x2=Number(s[4].split(",")[0]); 
        y2=Number(s[4].split(",")[1]); 
         
        o=cch[y2*9+x2]; 
        o.moveTo(x1,y1,true); 
        curPlayer--; 
         
    }else if(s[0]=="destory"){ 
        p=s[1]; 
        t=s[2]; 
        x1=Number(s[3].split(",")[0]); 
        y1=Number(s[3].split(",")[1]); 
         
        s=his.pop().split(" "); 
        x2=Number(s[3].split(",")[0]); 
        y2=Number(s[3].split(",")[1]); 
        x3=Number(s[4].split(",")[0]); 
        y3=Number(s[4].split(",")[1]); 
         
        o=cch[y3*9+x3]; 
        o.moveTo(x2,y2,true); 
        curPlayer--; 
         
        createChessman(t,x1,y1,p); 
    } 
}

</ script>

<input type="button" value="重开" onclick="window.location.reload();" style="position:absolute; left:800px;"> 
<input type="button" value="悔棋" onclick="undo();" style="position:absolute; left:900px;"> 
<div id="d_his_red" style="font-size:12px; color:#333;position:absolute; left:800px; top:450px; width:120px; height:300px; overflow:auto;"></div> 
<div id="d_his_blue" style="font-size:12px; color:#333;position:absolute; left:800px; top:100px; width:120px; height:300px; overflow:auto;"></div>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]