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js写的俄罗斯方块

敬业的IT人 互联网 佚名 2008-1-10 17:12:09
<HTML>
<HEAD>
<title>俄罗斯方块</title>
<style>
<!--
BODY
{
}
.MB
{
    BACKGROUND-COLOR: firebrick;
    CURSOR: default;
    HEIGHT: 22px;
    WIDTH: 22px
}
.SB
{
    BACKGROUND-COLOR: slategray;
    CURSOR: default;
    HEIGHT: 22px;
    WIDTH: 22px
}
.BK
{
    BACKGROUND-COLOR: white;
    CURSOR: default;
    HEIGHT: 22px;
    WIDTH: 22px
}
.GT
{
    BORDER-BOTTOM: deepskyblue thin solid;
    BORDER-LEFT: deepskyblue thin solid;
    BORDER-RIGHT: deepskyblue thin solid;
    BORDER-TOP: deepskyblue thin solid;
    CURSOR: default
}
-->
</style>
<script>
<!--
var BX=new Array(4);
var BY=new Array(4);
var PX=new Array(4);
var PY=new Array(4);
var mTimer
var firstView

function beginGame()
{
    gameState=0;
    speed=1;
    outTime=1100-speed*100;
    score=0;
    if(gameState!=0)return;
    firstView=true;
    for(j=0;j<16;j++)
        for(i=0;i<10;i++)
            setClass(i,j,BK);
    randBar();
    gameState=1;
    Play.disabled=true;
    window.clearInterval(mTimer);
    mTimer=window.setInterval(moveBar(),outTime);
}

function keyControl()
{
    if(gameState!=1)return;
    switch(event.keyCode){
        case 37:{    //left
            for(i=0;i<4;i++)if(BX[i]==0)return;
            for(i=0;i<4;i++)if(getClass(BX[i]-1,BY[i])==SB)return;
            for(i=0;i<4;i++)setClass(BX[i],BY[i],BK);
            for(i=0;i<4;i++)BX[i]=BX[i]-1;
            for(i=0;i<4;i++)setClass(BX[i],BY[i],MB);
            break;}
        case 38:{    //up
            var preMBarX=new Array(4);
            var preMBarY=new Array(4);
            var cx=Math.round((BX[0]+BX[1]+BX[2]+BX[3])/4);
            var cy=Math.round((BY[0]+BY[1]+BY[2]+BY[3])/4);
            for(i=0;i<4;i++){
                preMBarX[i]=Math.round(cx-cy+BY[i]);
                preMBarY[i]=Math.round(cx+cy-BX[i]);
                if(preMBarX[i]<0 ¦¦ preMBarX[i]>9 ¦¦ preMBarY[i]<0 ¦¦ preMBarY[i]>15)return;
                if(getClass(preMBarX[i],preMBarY[i])==SB)return;
            }
            for(i=0;i<4;i++)setClass(BX[i],BY[i],BK);
            for(i=0;i<4;i++){
                BX[i]=preMBarX[i];
                BY[i]=preMBarY[i];
            }
            for(i=0;i<4;i++)setClass(BX[i],BY[i],MB);
            break;}
        case 39:{    //right
            for(i=0;i<4;i++)if(BX[i]==9)return;
            for(i=0;i<4;i++)if(getClass(BX[i]+1,BY[i])==SB)return;
            for(i=0;i<4;i++)setClass(BX[i],BY[i],BK);
            for(i=0;i<4;i++)BX[i]=BX[i]+1;
            for(i=0;i<4;i++)setClass(BX[i],BY[i],MB);
            break;}
        case 40:{    //down
            moveBar();
            break;}
    }
}

function delLine()
{
    for(i=0;i<4;i++)setClass(BX[i],BY[i],SB);
    for(j=0;j<16;j++){
        dLine=true;
        for(i=0;i<9;i++){
            if(getClass(i,j)!=SB){
                dLine=false;
                break;
            }
        }
        if(dLine){
            score=score+100;
            for(k=j;k>0;k--)
                for(l=0;l<10;l++)
                    setClass(l,k,getClass(l,k-1));
            for(l=0;l<10;l++)setClass(l,0,BK);
        }
    }
    randBar();
    speed=Math.floor(score/3000)+1;
    outTime=1100-speed*100;
    scoreBar.innerHTML=Score : + score;
    speedBar.innerHTML=Speed : + speed;
    window.clearInterval(mTimer);
    mTimer=window.setInterval(moveBar(),outTime);
}

function getClass(x,y){return GameBar.children[y].children[x].className;}
function setClass(x,y,cName){GameBar.children[y].children[x].className=cName;}

function moveBar()
{
    if(gameState!=1)return;
    dropLine=true;
    for(i=0;i<4;i++)if(BY[i]==15)dropLine=false;
    if(dropLine)for(i=0;i<4;i++)if(getClass(BX[i],BY[i]+1)==SB)dropLine=false;
    if(!dropLine){
        window.clearInterval(mTimer);
        delLine();
        return;
    }
    for(i=0;i<4;i++)setClass(BX[i],BY[i],BK);
    for(i=0;i<4;i++)BY[i]=BY[i]+1;
    for(i=0;i<4;i++)setClass(BX[i],BY[i],MB);
}

function pauseGame()
{
    if(gameState==0)return;
    if(event.srcElement.value==Pause){
        gameState=2;
        event.srcElement.value=Continue;
        window.clearInterval(mTimer);
    }
    else{
        gameState=1;
        event.srcElement.value=Pause;
        mTimer=window.setInterval(moveBar(),outTime);
    }
}

function fMnu(){return false;}
document.oncontextmenu=fMnu;

function preview()
{
    if(previewBar.style.display!=none)
        previewBar.style.display=none;
    else
        previewBar.style.display=block;
}

function replayGame()
{
    if(gameState!=1)return;
    if(!confirm(你真的要重新开始么？))return;
    gameState=0;
    window.clearInterval(mTimer);
    beginGame();
}
function randBar()
{
    randNum=Math.floor(Math.random()*20)+1;
    if(!firstView)
        for(i=0;i<4;i++){
            BX[i]=PX[i];
            BY[i]=PY[i];
        }
    switch(randNum){
        case 1:{
            PX[0]=4;
            PY[0]=0;
            PX[1]=4;
            PY[1]=1;
            PX[2]=5;
            PY[2]=1;
            PX[3]=6;
            PY[3]=1;
            break;}
        case 2:{
            PX[0]=4;
            PY[0]=0;
            PX[1]=5;
            PY[1]=0;
            PX[2]=4;
            PY[2]=1;
            PX[3]=4;
            PY[3]=2;
            break;}
        case 3:{
            PX[0]=4;
            PY[0]=0;
            PX[1]=5;
            PY[1]=0;
            PX[2]=6;
            PY[2]=0;
            PX[3]=6;
            PY[3]=1;
            break;}
        case 4:{
            PX[0]=5;
            PY[0]=0;
            PX[1]=5;
            PY[1]=1;
            PX[2]=5;
            PY[2]=2;
            PX[3]=4;
            PY[3]=2;
            break;}
        case 5:{
            PX[0]=6;
            PY[0]=0;
            PX[1]=6;
            PY[1]=1;
            PX[2]=4;
            PY[2]=1;
            PX[3]=5;
            PY[3]=1;
            break;}
        case 6:{
            PX[0]=4;
            PY[0]=0;
            PX[1]=4;
            PY[1]=1;
  

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