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写的不错，思路也很清晰，学习一下！
<!doctype html> <html> <head> <title>俄罗斯方块</title> <style type="text/css"> body { color:#dbdbdb; background:#000; font:25px/25px 宋体; } #box { position:absolute; left:50%; top:10px; margin-left:-220px; width:252px;border:#999 5px ridge; } #info { position:absolute; left:50%; top:30px; margin-left:90px; font-family: Microsoft YaHei;} #next { padding:8px;width:105px; font-family: 宋体;} #rend { padding-top:30px; font:16px/25px 宋体;font-family: Microsoft YaHei; } #rend span { color:#ffff00; } </style> </head> <body class="c0"> <div id="box" class="color"></div> <div id="info"> NEXT:<div id="next" class="color"></div> <div id="text"></div> <div id="rend"> <span>←↓→</span>：控制方向<br /> <span>Z X ↑</span>：改变形状<br /> <span>Shift</span> ：一键到底<br /> <span>空格键</span>：暂停<br /> </div> </div> <script type="text/javascript"> var map=eval("["+Array(23).join("0x801,")+"0xfff]"); var tatris=[ [0x6600], [0x2222,0xf00], [0xc600,0x2640], [0x6c00,0x4620], [0x4460,0x2e0,0x6220,0x740], [0x2260,0xe20,0x6440,0x4700], [0x2620,0x720,0x2320,0x2700] ]; var char={x:"\u3000",s:"\u25a0",t:"\u25a1"}; var downkey={}, retkey={"40":3,"37":6,"39":6}, keycom={ "38":"rotate(1)", "90":"rotate(1)", "88":"rotate(3)", "40":"down()","16": "fastdown()", "37":"move(1)", "39":"move(-1)", "32":"0;pause=!pause" }; var dia, pos, bak, run, next, pause=false, info={speed:1,lines:0,score:0}; function start(){ dia=next.d; bak=pos={fk:[],y:0,x:4,s:next.s}; nextdia(); document.getElementById("next").innerHTML=(next.d[next.s%next.d.length]|0x10000).toString(2).slice(-16).replace(/..../g,"$&<br/>").replace(/1/g,char.t).replace(/0/g,char.x); document.getElementById("text").innerHTML="SCORE:"+info.score+"<br/><br/>LINES:"+info.lines+"<br/><br/>SPEED:"+info.speed; rotate(0); run=setInterval("pause||down()",~~(Math.pow(1.3,12-info.speed)*30+20)); } function over(){ clearInterval(kTime); alert("GAME OVER"); } function nextdia(){ next={d:tatris[~~(Math.random()*7)],s:~~(Math.random()*4)}; } function update(t){ t&&(pos=bak); bak={fk:pos.fk.slice(0),y:pos.y,x:pos.x,s:pos.s}; if(t) return; for(var i=0,a2=""; i<22; i++) a2+=map[i].toString(2).slice(1,-1)+"<br/>"; for(var i=0,n; i<4; i++) if(/([^0]+)/.test(bak.fk[i].toString(2).replace(/1/g,char.t))) a2=a2.substr(0,n=(bak.y+i+1)*15-RegExp.$_.length-4)+RegExp.$1+a2.slice(n+RegExp.$1.length); document.getElementById("box").innerHTML=a2.replace(/1/g,char.s).replace(/0/g,char.x); } function is(){ for(var i=0; i<4; i++) if((pos.fk[i]&map[pos.y+i])!=0) return true; } function rotate(r){ var f=dia[pos.s=(pos.s+r)%dia.length]; for(var i=0; i<4; i++) pos.fk[i]=(f>>(12-i*4)&15)<<pos.x; update(is()&&ert(1)&&ert(-2)&&ert(-1)); } function down(){ ++pos.y; if(is()){ pos=bak; for(var i=0, r=0; i<4 && pos.y+i<22; i++) if((map[pos.y+i]|=pos.fk[i])==0xfff){ map.splice(pos.y+i,1); map.unshift(0x801); r++; if(++info.lines%20==0) document.body.className="c"+info.speed++%7; } clearInterval(run); if(map[1]!=0x801) return over(); info.score+=~~(Math.pow(r,1.8)*10)+2; start(); } update(); } function fastdown(){ clearInterval(run); run=setInterval("pause||down()",12); } function move(k){ update(ert(k)); } function ert(k){ pos.x+=k; for(var i=0; i<4; i++) k>0 ? pos.fk[i]<<=k : pos.fk[i]>>=-k; return is(); } document.onkeydown=function(e){ var k=(e||event).keyCode; if(keycom[k] && !(k in downkey)) downkey[k]=0; }; document.onkeyup=function(e){ var k=(e||event).keyCode; if(keycom[k]) delete downkey[k]; }; var kTime = setInterval(function(){ for(var k in downkey) if(++downkey[k]==1 || retkey[k] && downkey[k]>retkey[k]) eval("pause||"+keycom[k]); },25); nextdia(); start(); </script> </body> </html>
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原文地址：http://www.cnblogs.com/shoestrong/p/5725871.html
