1 <!doctype html><html><head></head><body> 2 <div id="box" style="252px;font:25px/25px 宋体;background:#000;color:#9f9;border:#999 20px ridge;text-shadow:2px 3px 1px #0f0;"></div> 3 <script> 4 var map=eval("["+Array(23).join("0x801,")+"0xfff]"); 5 var tatris=[[0x6600],[0x2222,0xf00],[0xc600,0x2640],[0x6c00,0x4620],[0x4460,0x2e0,0x6220,0x740],[0x2260,0xe20,0x6440,0x4700],[0x2620,0x720,0x2320,0x2700]]; 6 var keycom={"38":"rotate(1)","40":"down()","37":"move(2,1)","39":"move(0.5,-1)"}; 7 var dia, pos, bak, run; 8 function start(){ 9 dia=tatris[~~(Math.random()*7)]; 10 bak=pos={fk:[],y:0,x:4,s:~~(Math.random()*4)}; 11 rotate(0); 12 } 13 function over(){ 14 document.onkeydown=null; 15 clearInterval(run); 16 alert("GAME OVER"); 17 } 18 function update(t){ 19 bak={fk:pos.fk.slice(0),y:pos.y,x:pos.x,s:pos.s}; 20 if(t) return; 21 for(var i=0,a2=""; i<22; i++) 22 a2+=map[i].toString(2).slice(1,-1)+"<br/>"; 23 for(var i=0,n; i<4; i++) 24 if(/([^0]+)/.test(bak.fk[i].toString(2).replace(/1/g,"u25a1"))) 25 a2=a2.substr(0,n=(bak.y+i+1)*15-RegExp.$_.length-4)+RegExp.$1+a2.slice(n+RegExp.$1.length); 26 document.getElementById("box").innerHTML=a2.replace(/1/g,"u25a0").replace(/0/g,"u3000"); 27 } 28 function is(){ 29 for(var i=0; i<4; i++) 30 if((pos.fk[i]&map[pos.y+i])!=0) return pos=bak; 31 } 32 function rotate(r){ 33 var f=dia[pos.s=(pos.s+r)%dia.length]; 34 for(var i=0; i<4; i++) 35 pos.fk[i]=(f>>(12-i*4)&15)<<pos.x; 36 update(is()); 37 } 38 function down(){ 39 ++pos.y; 40 if(is()){ 41 for(var i=0; i<4 && pos.y+i<22; i++) 42 if((map[pos.y+i]|=pos.fk[i])==0xfff) 43 map.splice(pos.y+i,1), map.unshift(0x801); 44 if(map[1]!=0x801) return over(); 45 start(); 46 } 47 update(); 48 } 49 function move(t,k){ 50 pos.x+=k; 51 for(var i=0; i<4; i++) 52 pos.fk[i]*=t; 53 update(is()); 54 } 55 document.onkeydown=function(e){ 56 eval(keycom[(e?e:event).keyCode]); 57 }; 58 start(); 59 run=setInterval("down()",400); 60 </script></body></html>