代码如下： <HTML> <HEAD> <META NAME="Title" CONTENT="JScript Simple Tetris"> <TITLE>Simple Tetris</TITLE> <style> body {margin:0;background:black;} td {height:20;width:20;} #block_div {position:absolute;z-index:1;width:80;} #table_div {position:absolute;z-index:0;width:320;} #nblock_div {position:absolute;z-index:2;font:48 system;color:red;} #title_div {position:absolute;left:326;top:7;font-size:22px;color:white} #infobar_div {position:absolute;left:396;top:416;} #infobar2_div {position:absolute;left:396;top:480;font-size:14px;color:white} #infobar2_div a{color:99ccff;font:system;text-decoration:none} </style> <SCRIPT ID=clientEventHandlersJS LANGUAGE=javascript> <!-- if (document.all){ var n_width = 800; var n_height = 600; var n_left = Math.round( screen.width/2 ) - n_width/2; var n_top = Math.round( screen.height/2 ) - n_height/2; var n_IncStep = 20; var curBlcok,nextBlock; var arr_curBlock = new Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0); var curX,curY; var speed=1; var maxspeed=9; var clr_per_line=18; var pause=0; var gameover=0; var colors = new Array("#999999","#0000FF","#80FFFF","#80FF80","#FFFF00","#FF8000","#FF00FF","#FF0000" ); var cid; var ncid; var blocks = new Array("tt_O1","tt_T2","tt_Z1","tt_S1","tt_L1","tt_J1","tt_I2"); var bid; var killedlines=0; var tt_O1 = new Array(0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0); var tt_O2 = new Array(0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0); var tt_O3 = new Array(0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0); var tt_O4 = new Array(0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0); var tt_T1 = new Array(0,0,0,0,0,1,0,0,1,1,0,0,0,1,0,0); var tt_T2 = new Array(0,0,0,0,0,0,0,0,1,1,1,0,0,1,0,0); var tt_T3 = new Array(0,0,0,0,0,1,0,0,0,1,1,0,0,1,0,0); var tt_T4 = new Array(0,0,0,0,0,1,0,0,1,1,1,0,0,0,0,0); var tt_Z1 = new Array(0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,0); var tt_Z2 = new Array(0,0,0,0,0,0,1,0,0,1,1,0,0,1,0,0); var tt_Z3 = new Array(0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0); var tt_Z4 = new Array(0,0,1,0,0,1,1,0,0,1,0,0,0,0,0,0); var tt_S1 = new Array(0,0,0,0,0,1,1,0,1,1,0,0,0,0,0,0); var tt_S2 = new Array(0,0,0,0,0,1,0,0,0,1,1,0,0,0,1,0); var tt_S3 = new Array(0,0,0,0,0,0,1,1,0,1,1,0,0,0,0,0); var tt_S4 = new Array(0,1,0,0,0,1,1,0,0,0,1,0,0,0,0,0); var tt_L1 = new Array(0,1,0,0,0,1,0,0,0,1,1,0,0,0,0,0); var tt_L2 = new Array(0,0,0,0,0,0,1,0,1,1,1,0,0,0,0,0); var tt_L3 = new Array(0,0,0,0,0,1,1,0,0,0,1,0,0,0,1,0); var tt_L4 = new Array(0,0,0,0,0,1,1,1,0,1,0,0,0,0,0,0); var tt_J1 = new Array(0,0,1,0,0,0,1,0,0,1,1,0,0,0,0,0); var tt_J2 = new Array(0,0,0,0,1,1,1,0,0,0,1,0,0,0,0,0); var tt_J3 = new Array(0,0,0,0,0,1,1,0,0,1,0,0,0,1,0,0); var tt_J4 = new Array(0,0,0,0,0,1,0,0,0,1,1,1,0,0,0,0); var tt_I1 = new Array(0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0); var tt_I2 = new Array(0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1); var tt_I3 = new Array(0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0); var tt_I4 = new Array(0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1); var table = new Array( 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1) } else alert("You need IE4+ to play Tetris!") function dimension2(row,col,num){ var i = row * num + col; return (this[i]); } Array.prototype.getd = dimension2; function ShowBlock(x,y,block_type,color){ for (var i=0;i<block_tbl.rows.length;i++){ for (var j=0;j<block_tbl.rows(i).cells.length;j++){ var d2 = i * 4 + j; if (block_type[d2]==1){ block_tbl.rows(i).cells(j).style.background = color; } else{ block_tbl.rows(i).cells(j).style.background = ""; } } } block_div.style.pixelLeft=x; block_div.style.pixelTop=y; } function ShowBlock1(x,y,block_type,color,obj_tabID,obj_divID){ for (var i=0;i<obj_tabID.rows.length;i++){ for (var j=0;j<obj_tabID.rows(i).cells.length;j++){ var d2 = i * 4 + j; if (block_type[d2]==1){ obj_tabID.rows(i).cells(j).style.background = color; } else{ obj_tabID.rows(i).cells(j).style.background = ""; } } } obj_divID.style.pixelLeft=x; obj_divID.style.pixelTop=y; } function Change(inc){ var type = curBlock.substr(0,4); var num = curBlock.substr(curBlock.length-1); num = parseInt(num) + inc; if (num>4||num<1) num -= 4*inc; type += num; eval("arr_tmp = " + type + ";"); if (CanMove(curX,curY,arr_tmp)){ curBlock = type; eval("arr_curBlock = " + curBlock + ";"); eval("ShowBlock(block_div.style.pixelLeft,block_div.style.pixelTop," + curBlock + ",colors[" + cid + "]);"); } } function CanMove(x,y,block){ for (i=0;i<4;i++){ for (j=0;j<4;j++){ if (block.getd(i,j,4)&table.getd(y/n_IncStep+i,x/n_IncStep+j,16)) return false; } } return true; } function NewBlock(){ curBlock = nextBlock; cid = ncid; bid = Math.round(Math.random()*(blocks.length-1)); ncid = Math.round(Math.random()*(colors.length-1)); nextBlock = blocks[bid]; eval("arr_curBlock = " + curBlock + ";"); eval("ShowBlock(120,0," + curBlock + ",colors[" + cid + "]);"); eval("arr_curBlock = " + curBlock + ";"); eval("ShowBlock1(466,116," + nextBlock + ",colors[" + ncid + "],nblock_tbl,nblock_div);"); } function SaveBlock(){ for (i=0;i<4;i++){ for (j=0;j<4;j++){ table[(curY/n_IncStep+i)*16+curX/n_IncStep+j]|=arr_curBlock[i*4+j]; if (arr_curBlock[i*4+j]==1) if ((curY/n_IncStep+i<21)&&(curX/n_IncStep+j>1)&&(curX/n_IncStep+j<14)) table_tbl.rows(curY/n_IncStep+i).cells(curX/n_IncStep+j).style.background = colors[cid]; if (table[(curY/n_IncStep+i)*16+curX/n_IncStep+j]!=1) table_tbl.rows(curY/n_IncStep+i).cells(curX/n_IncStep+j).style.background = "black"; } } } function DelLine(line){ for(i=line;i>0;i--){ for(j=2;j<14;j++){ table[i*16+j]=table[(i-1)*16+j]; } } table_tbl.deleteRow(line); table_tbl.insertRow(0); for (i=0;i<16;i++){ table_tbl.rows(0).insertCell(); if (i<2||i>13) table_tbl.rows(0).cells(i).style.background="navy"; } killedlines++; cll.innerText=parseInt(cll.innerText)+1; } function DelLines(){ var c,d,i,j; d=0; curY=block_div.style.pixelTop; for(i=(curY/20+3);i>curY/20-1;i--){ c=0; for(j=2;j<14;j++){ if (isNaN(table[i*16+j])||i==21) break; c+=table[i*16+j]; } if(c==12){ DelLine(i); i++; d++; } } if (d>0) sco.innerText=parseInt(sco.innerText)+d*d*36; } function Lucifer(){ for(var i=2;i<14;i++){ if (table[16+i]==1) return true; } return false; } function GameOver(){ gameover=1; clearInterval(gameInterval); block_div.innerHTML=""; for (i=0;i<21;i++){ for (j=2;j<14;j++){ setTimeout("table_tbl.rows(" + i + ").cells(" + j + ").style.background = colors[Math.round(Math.random()*7)];",16*i*j); } } nblock_div.innerHTML = "Game Over"; } function document_onkeydown() { if (gameover==1) return; with (block_div.style){ curX = pixelLeft; curY = pixelTop; switch (event.keyCode){ case 37: if (CanMove(curX-n_IncStep,curY,arr_curBlock)) pixelLeft-=n_IncStep; break; case 38: Change(1); break; case 39: if (CanMove(curX+n_IncStep,curY,arr_curBlock)) pixelLeft+=n_IncStep; break; case 40: if (CanMove(curX,curY+n_IncStep,arr_curBlock)){ pixelTop+=n_IncStep; } else{ SaveBlock(); DelLines(); if (Lucifer()){ GameOver(); return; } sco.innerText=parseInt(sco.innerText)+2; NewBlock(); } break; case 32: if (pause==0){ clearInterval(gameInterval); pause=1; } else{ gameInterval=window.setInterval("Handle_Interval()",(maxspeed-speed+1)*60); pause=0; } break; case 90: Change(1); break; case 88: Change(-1); break; default: } } } function Handle_Interval(){ curX = block_div.style.pixelLeft; curY = block_div.style.pixelTop; if (CanMove(curX,curY+n_IncStep,arr_curBlock)){ block_div.style.pixelTop+=n_IncStep; } else{ SaveBlock(); DelLines(); if (Lucifer()){ GameOver(); return; } sco.innerText=parseInt(sco.innerText)+2 NewBlock(); } if (killedlines>=clr_per_line){ killedlines-=clr_per_line; if (speed<maxspeed) speed++; else speed=maxspeed; spd.innerText=speed; clearInterval(gameInterval); gameInterval=window.setInterval("Handle_Interval()",(maxspeed-speed+1)*60); } } //--> </SCRIPT> <SCRIPT LANGUAGE=javascript FOR=document EVENT=onkeydown> <!-- if (document.all) document_onkeydown() //--> </SCRIPT> </HEAD> <BODY LANGUAGE=javascript> <div id=block_div style="left:60;top:0"> <table id=block_tbl border=0 cellspacing=0 cellpadding=0> <script> if (document.all){ for (var i=0;i<4;i++){ document.write("<tr>"); for (var j=0;j<4;j++){ document.write("<td style=\"border:1 solid black;\"></td>"); } document.write("</tr>"); } } </script> </table> </div> <div id=nblock_div> <table id=nblock_tbl border=0 cellspacing=0 cellpadding=0> <script> if (document.all){ for (var i=0;i<4;i++){ document.write("<tr>"); for (var j=0;j<4;j++){ document.write("<td style=\"height:40;width:40;border:1 outset black;\"></td>"); } document.write("</tr>"); } } </script> </table> </div> <div id=table_div> <table id=table_tbl border=0 cellspacing=0 cellpadding=0> <script> if (document.all){ for (var i=0;i<22;i++){ document.write("<tr>"); for (var j=0;j<16;j++){ var d2 = i * 16 + j; if (table[d2]==1) document.write("<td bgcolor=navy></td>"); else document.write("<td style=\"background:black;\"></td>"); } document.write("</tr>"); } } </script> </table> </div> <div id=title_div nowrap>Please input speed (1-9) to begin: <input type="text" size=8 id="speedin"> <button onClick="begintet()" id="but">Submit!</button></div> <div id=infobar_div> <table border=1 bordercolor=navy cellspacing=0 cellpadding=0> <tr align=center> <td style="color:99ccff;font:12 system;width:56;">Speed:</td> <td style="color:red;font:12 system;" id=spd>1</td> <td style="color:99ccff;font:12 system;width:86;">Total Score:</td> <td style="color:red;font:12 system;" id=sco>0</td> <td style="color:99ccff;font:12 system;width:96;">Cleared Lines:</td> <td style="color:red;font:12 system;" id=cll>0</td> </tr> </table> </div> <SCRIPT ID=MainSection LANGUAGE=javascript> <!-- if (document.all){ ncid = Math.round(Math.random()*(colors.length-1)); bid = Math.round(Math.random()*(blocks.length-1)); nextBlock = blocks[bid]; NewBlock(); } function begintet(){ document.all.speedin.disabled=true document.all.but.disabled=true speed=parseInt(document.all.speedin.value); if (isNaN(speed)||speed==null||speed>maxspeed||speed<1) speed=1; spd.innerText=speed; gameInterval=window.setInterval("Handle_Interval()",(maxspeed-speed+1)*60); } //--> </SCRIPT> </BODY> </HTML>
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