60行代码俄罗斯方块
<!doctype html><html><head><style type="text/css">
body { background:#000; font:25px/25px 宋體;}
#box { float:left;width:252px;border:#999 20px ridge;color:#9f9;text-shadow:2px 3px 1px #0f0; }
#info { float:left;color:#cfc;padding:24px; }
#next { padding:8px;width:105px;color:#9f9;text-shadow:2px 3px 1px #0f0; }
</style></head><body>
<div id="box"></div><div id="info">NEXT:<div id="next"></div><div id="text"></div></div>
<script type="text/javascript">
var map=eval_r("["+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 keycom={"38":"rotate(1)","40":"down()","37":"move(2,1)","39":"move(0.5,-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.getElementByIdx_x("next").innerHTML=(next.d[next.s%next.d.length]|0x10000).toString(2).slice(-16).replace(/..../g,"$&<br/>").replace(/1/g,char.t).replace(/0/g,char.x);
?document.getElementByIdx_x("text").innerHTML="SCORE:"+info.score+"<br/><br/>LINES:"+info.lines+"<br/><br/>SPEED:"+info.speed;
?rotate(0);
?run=setInterval("pause||down()",~~(Math.pow(1.3,12-info.speed)*30+20));
}
function over(){
?document.οnkeydοwn=null;
?alert("GAME OVER");
}
function nextdia(){
?next={d:tatris[~~(Math.random()*7)],s:~~(Math.random()*4)};
}
function update(t){
?bak={fk:pos.fk.slice(0),y:pos.y,x:pos.x,s:pos.s};
?if(t) return;
?for(var i=0,a2=""; i<22; i++)
??a2+=map[i].toString(2).slice(1,-1)+"<br/>";
?for(var i=0,n; i<4; i++)
??if(/([^0]+)/.test(bak.fk[i].toString(2).replace(/1/g,char.t)))
???a2=a2.substr(0,n=(bak.y+i+1)*15-RegExp.$_.length-4)+RegExp.$1+a2.slice(n+RegExp.$1.length);
?document.getElementByIdx_x("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 pos=bak;
}
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());
}
function down(){
?++pos.y;
?if(is()){
??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);
????++info.lines ==0 && info.speed++, r++;
???}
??clearInterval(run);
??if(map[1]!=0x801) return over();
??info.score+=~~(Math.pow(r,1.5)*10)+2;
??start();
?}
?update();
}
function move(t,k){
?pos.x+=k;
?for(var i=0; i<4; i++)
??pos.fk[i]*=t;
?update(is());
}
document.οnkeydοwn=function(e){
?eval_r("pause||"+keycom[(e?e:event).keyCode]);
};
nextdia();
start();
</script></body></html>
轉載于:https://www.cnblogs.com/liuzhuqing/archive/2013/05/02/7480539.html
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