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Javascript 中的 JavaScript 寫遊戲 : 俄羅斯方塊

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-08-10   浏览: 389 ::
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應該看得懂吧？

沒時間寫注釋。。。:(

這個差不多美的啦！只要向Block裏面添加或修改就能改變方塊的形狀。:)

 

 

<!--
http://dwin.net
http://dewin.tk


Copyright(c) 1998-2004 dewin all rights reserved

Start 2002-09-20 14:45
Finish  2002-10-31 23:50
Last Edit 2003-08-14 01:25
-->
<body>
<script>

var Rows = 17;
var Cells = 10;
var ObjW = ObjH = 20;

var Scores= 0;
var Marks = [100,400,900,1600];

var BaseBW = 5;
var BaseBGColor = 'white';

var BlockBW = 2;
var BlockBS = 'inset';
var BlockBC = 'orange';

var GlowColor = '#ffff00';
var GlowStrength = 5;

var oSpeed = 151;

 

//方塊數據

Block = [];
Block[0]=[
'   ',
'  1',
'111']
Block[0].change = 4;
Block[0].color = 'red';

Block[1]=[
'   ',
'1  ',
'111']
Block[1].change = 4;
Block[1].color = 'green';

Block[2]=[
'   ',
' 1 ',
'111']
Block[2].change = 4;
Block[2].color = 'orange';

Block[3]=[
' 11',
'11 ']
Block[3].change = 2;
Block[3].color = 'fuchsia';

Block[4]=[
'11 ',
' 11']
Block[4].change = 2;
Block[4].color = 'yellow';

Block[5]=[
'1111']
Block[5].change = 2;
Block[5].color = 'lime';

Block[6]=[
'11',
'11']
Block[6].change = 1;
Block[6].color = 'blue';


Block[7]=[
'1']
Block[7].change = 1;
Block[7].color = 'gold';

Block[8]=[
'   ',
'1 1',
'111']
Block[8].change = 4;
Block[8].color = 'pink';

Block[9]=[
'111',
' 1 ',
' 1 ']
Block[9].change = 4;
Block[9].color = 'black';

 

 

 

 

//方塊准備下落
function ReadyForDown(obj1,obj2){
obj1.k = parseInt(Math.random()*Block.length);
if(!NewBlock[obj1.k].length){
 switch(Block[obj1.k].change){
  case 1:Change0(obj1.k);break;
  case 2:Change0(obj1.k);Change1(obj1.k);break;
  case 4:Change0(obj1.k);Change1(obj1.k);Change2(obj1.k);break;
  }
 }
obj1.Change = parseInt(Math.random()*Block[obj1.k].change);
obj2.innerHTML = NewBlock[obj1.k][obj1.Change].iHtml;
obj1.GapX = parseInt(NewBlock[obj1.k][obj1.Change][0].length/2);
CheckObjGapY(obj1,NewBlock[obj1.k][obj1.Change].length);
obj1.X = parseInt(Cells/2);
obj1.Y = 0;
}

function CheckObjGapY(obj,k){
if(!NewBlock[obj.k][obj.Change][k-1].join('').match(/\d+/)){
 obj.GapY = 1-k;
 CheckObjGapY(obj,k-1);
 }
else obj.GapY = -k;
}

//改變方塊形狀
function ChangeBlock(){
if(Block[Obj1.k].change > 1){
 Obj1.TestChange = (Obj1.Change+1 >= Block[Obj1.k].change)?0:Obj1.Change+1;
 Obj1.TestGapX = parseInt(NewBlock[Obj1.k][Obj1.TestChange][0].length/2);
 Obj1.TestGapY = -NewBlock[Obj1.k][Obj1.TestChange].length;
 Obj1.TestL = Obj1.X-Obj1.TestGapX;
 Obj1.TestT = Obj1.Y+Obj1.TestGapY;
 var k1 = k2 = Areas;
 for(var i=Obj1.TestL;i>=0 && i>Obj1.TestL-NewBlock[Obj1.k][Obj1.TestChange].lg;i--){if((k1=CheckChangeBlock(i))!=Areas)break}
 for(var i=Obj1.TestL+1;i<Cells && i<Obj1.TestL+NewBlock[Obj1.k][Obj1.TestChange].lg;i++){if((k2=CheckChangeBlock(i))!=Areas)break}
 if(k1 == k2) return;
 Obj1.L = (Math.abs(Obj1.TestL-k1)>Math.abs(Obj1.TestL-k2))?k2:k1;
 Obj1.T = Obj1.TestT;
 Obj1.GapX = Obj1.TestGapX;
 Obj1.GapY = Obj1.TestGapY;
 Obj1.X = Obj1.L+Obj1.GapX;
 Obj1.Y = Obj1.T-Obj1.GapY;
 Obj1.Change = Obj1.TestChange;
 SkinDiv.style.left = Obj1.L*ObjW;
 SkinDiv.style.top = Obj1.T*ObjH;
 SkinDiv.innerHTML = NewBlock[Obj1.k][Obj1.Change].iHtml;
 }
}

 

檢測改變後，方塊相對於左邊的值。

function CheckChangeBlock(lefts){
for(var y=0;y<NewBlock[Obj1.k][Obj1.TestChange].length;y++){
 for(var x=0;x<NewBlock[Obj1.k][Obj1.TestChange][0].length;x++){
  if(NewBlock[Obj1.k][Obj1.TestChange][y][x]==1){
   try{if(Map[Obj1.TestT+y][lefts+x] != ' ') return Areas}
   catch(e){}
   }
  }
 }
return lefts;
}

 

 

//方向控制

function Dir(xx,yy){
var special = false
if(NewBlock[Obj1.k][Obj1.Change].length==1 && NewBlock[Obj1.k][Obj1.Change][0]==1)
 for(var y=Obj1.T+1;y<Rows-1;y++)
  if(Map[y+yy][Obj1.L]==" "){
   special = true
   break;
   }
for(var y=NewBlock[Obj1.k][Obj1.Change].length-1;y>=0;y--){
 for(var x=NewBlock[Obj1.k][Obj1.Change][0].length-1;x>=0;x--){
  if(NewBlock[Obj1.k][Obj1.Change][y][x]==1){
   try{
   if(yy==0 && (Obj1.L+x+xx<0 || Obj1.L+x+xx>=Cells || Map[Obj1.T+y][Obj1.L+x+xx]==1)) return;//橫
   if(Obj1.T+y+yy>=Rows || (!special && Map[Obj1.T+y+yy][Obj1.L+x+xx]==1)) return CreateBlockInMap();//豎
   }
   catch(e){}
   }
  }
 }
SkinDiv.style.left = (Obj1.L=(Obj1.X+=xx)-Obj1.GapX)*ObjW;
SkinDiv.style.top = (Obj1.T=(Obj1.Y+=yy)+Obj1.GapY)*ObjH;
}

 

//開始創造地圖啦。
function CreateBlockInMap(){
for(var y=0;y<NewBlock[Obj1.k][Obj1.Change].length;y++){
 for(var x=0;x<NewBlock[Obj1.k][Obj1.Change][0].length;x++){
  try{
  if(NewBlock[Obj1.k][Obj1.Change][y][x]==1){
   Map[Obj1.T+y][Obj1.L+x] = NewBlock[Obj1.k][Obj1.Change][y][x];
   BaseDiv.childNodes[Areas-(Obj1.T+y)*Cells+Obj1.L+x].style.background = Block[Obj1.k].color;
   BaseDiv.childNodes[Areas-(Obj1.T+y)*Cells+Obj1.L+x].style.visibility = 'visible';
   }
  }
  catch(e){return GameOver()}
  }
 }
CheckBlockAppear();
ReadyForDown(Obj2,ReadyBlockDiv);
}


function CheckBlockAppear(){
clearInterval(GoTime2);
GoTime2=0
var NewMap = [];
var iHtml = '';
var k = Rows-1;
var kk = -1;
for(var y=Rows-1;y>=0;y--){
 if(Map[y].join('') != FullString){NewMap[k--] = Map[y]}
 else{
  kk++;
  for(var x=0;x<Cells;x++){
   BaseDiv.childNodes[Areas-(y+kk)*Cells].removeNode(true);
   iHtml += "<span style='width:"+ObjW+";height:"+ObjH+";border:"+BlockBW+" "+BlockBS+" "+BlockBC+";overflow:hidden;visibility:hidden;'></span>";
   }
  }
 }
for(;k>=0;k--){
 NewMap[k] = [];
 for(var x=0;x<Cells;x++){
  NewMap[k][x] = ' ';
  }
 }
if(kk!=-1) ScoreDiv.innerHTML = (Scores+=Marks[kk]);//Cal the Scores
for(var i=0;i<Rows;i++){Map[i]=NewMap[i]}
BaseDiv.innerHTML += iHtml;
for(i in Obj2){Obj1[i] = Obj2[i]}//Obj2 => Obj1
SkinDiv.innerHTML = NewBlock[Obj1.k][Obj1.Change].iHtml;
SkinDiv.style.left = (Obj1.L = Obj1.X-Obj1.GapX)*ObjW;
SkinDiv.style.top = (Obj1.T = Obj1.GapY)*ObjH;
}


function GameOver(){
if(confirm('Game Over , ReStart ?')) window.location.reload();
else window.close();
}

 

//初始化方塊的變形數組

function Change0(k){
NewBlock[k] = [];
NewBlock[k][0] = [];
NewBlock[k][0].iHtml = '';
for(var y=0;y<Block[k].length;y++){
 NewBlock[k][0][y] = [];
 for(var x=0;x<Block[k][0].length;x++){
  NewBlock[k][0].iHtml += ((NewBlock[k][0][y][x]=Block[k][y].charAt(x)) == 1)?BlockHtml(x,y,k):"";
  }
 }
CheckBlockLong(k,0);
}

function Change1(k){
NewBlock[k][1] = [];
NewBlock[k][1].iHtml = '';
for(var y=0;y<Block[k][0].length;y++){
 NewBlock[k][1][y] = [];
 for(var x=0;x<Block[k].length;x++){
  NewBlock[k][1].iHtml += ((NewBlock[k][1][y][x]=Block[k][Block[k].length-x-1].charAt(y)) == 1)?BlockHtml(x,y,k):"";
  }
 }
CheckBlockLong(k,1);
}

function Change2(k){
NewBlock[k][2] = [];
NewBlock[k][3] = [];
NewBlock[k][2].iHtml = '';
NewBlock[k][3].iHtml = '';
for(var y=0;y<Block[k].length;y++){
 NewBlock[k][2][y] = [];
 for(var x=0;x<Block[k][0].length;x++){
  NewBlock[k][2].iHtml += ((NewBlock[k][2][y][x]=Block[k][Block[k].length-y-1].charAt(Block[k][0].length-x-1)) == 1)?BlockHtml(x,y,k):"";
  }
 }
for(var y=0;y<Block[k][0].length;y++){
 NewBlock[k][3][y] = [];
 for(var x=0;x<Block[k].length;x++){
  NewBlock[k][3].iHtml += ((NewBlock[k][3][y][x]=Block[k][x].charAt(Block[k][0].length-y-1)) == 1)?BlockHtml(x,y,k):"";
  }
 }
CheckBlockLong(k,2);
CheckBlockLong(k,3);
}

function BlockHtml(x,y,k){
return "<span style='position:absolute;left:"+x*ObjW+";top:"+y*ObjH+";width:"+ObjW+";height:"+ObjH+";background:"+Block[k].color+";border:"+BlockBW+" "+BlockBS+" "+BlockBC+";overflow:hidden;'></span>"
}

function CheckBlockLong(k,i){
for(var y=0;y<NewBlock[k][i].length;y++){
 NewBlock[k][i][y].lg = (NewBlock[k][i][y].toString().match(/\d+/)==null)?0:NewBlock[k][i][y].join('').match(/\d+/).toString().length;
 }
NewBlock[k][i].lg = 1;
for(var y=0;y<NewBlock[k][i].length;y++){
 NewBlock[k][i].lg = Math.max(NewBlock[k][i][y].lg,NewBlock[k][i].lg);
 }
}

 

 

 

 

 

function document.onkeydown(){
switch(event.keyCode){
 case 34:clearInterval(GoTime);oSpeed+=10;if(GoTime>0){Dir(0,1);GoTime=setInterval('Dir(0,1)',oSpeed)};break;//page up
 case 33:if(oSpeed-10>0){clearInterval(GoTime);oSpeed-=5};if(GoTime>0){Dir(0,1);GoTime=setInterval('Dir(0,1)',oSpeed);};break;//page down
 case 38:if(GoTime>0)GoTime2=setInterval("Dir(0,1)",1);break;//up
 case 37:CheckKeyDown(-1,0,150,20);break;//left
 case 39:CheckKeyDown(1,0,150,20);break;//right
 case 40:CheckKeyDown(0,1,150,20);break;//down
 case 96:if(GoTime>0)ChangeBlock();break;//0
 case 83:CheckStart();break;
 }
}

 

function document.onkeyup(){
DoKeyDown=false
}

function CheckKeyDown(x,y,t1,t2){
if(GoTime>0 && !DoKeyDown){
 Dir(x,y)
 DoKeyDown=true
 setTimeout("if(DoKeyDown)KeyDownAgain("+x+","+y+","+t2+");",t1)
 }
}

function KeyDownAgain(x,y,t2){
if(GoTime>0 && DoKeyDown){
 Dir(x,y)
 setTimeout("KeyDownAgain("+x+","+y+","+t2+")",t2)
 }
}

 


function CheckStart(){
if(GoTime == -1){
 CheckBlockAppear();
 GoTime = 0;
 ReadyForDown(Obj2,ReadyBlockDiv);
 }
if(!GoTime){
 Dir(0,1);
 GoTime = setInterval('Dir(0,1)',oSpeed);
 }
else{
 clearInterval(GoTime);
 GoTime = 0;
 }
}


var Map = [];
var NewBlock = [];
var Areas = 0;
var GoTime = -1, GoTime2;
var FullString = '';
var Obj1 = new Object();
var Obj2 = new Object();
var DoKeyDown=false

 

window.focus();
var iHtml = '';
var BaseWidth = Cells*ObjW;
var BaseHeight = Rows*ObjH;
var MainMapWidth = 2*BaseBW+Cells*ObjW;
var MainMapHeight = 2*BaseBW+Rows*ObjH;
document.body.innerHTML += "<font color=red>press \"s\" button to Star or Stop<br>press \"0\" button to Change Quadrel into Another Shape<br>press \"Page Up\" to Speed up<br>press \"Page Down\" to Speed down</font><span style='position:absolute;left:"+(document.body.clientWidth-MainMapWidth)/2+";top:"+(document.body.clientHeight-MainMapHeight)/2+";width:"+MainMapWidth+";height:"+MainMapHeight+";overflow:visible;border:"+BaseBW+" inset #0000CC;'><span style='position:absolute;left:0;top:0;width:"+BaseWidth+";height:"+BaseHeight+";filter:glow(color="+GlowColor+",strength="+GlowStrength+");'><span id='BaseDiv' style='position:absolute;left:0;top:0;width:"+BaseWidth+";height:"+BaseHeight+";filter:flipv;'></span></span><span id=SkinDiv style='position:absolute;'></span><span id='ReadyBlockDiv' style='position:absolute;left:"+MainMapWidth+";top:0;'></span><span id=ScoreDiv style='position:absolute;left:"+(MainMapWidth+50)+";top:"+(MainMapHeight-20)+";'>"+Scores+"</span></span>";
for(var i=0,k=Cells*Rows;i<k;i++){iHtml += "<span style='width:"+ObjW+";height:"+ObjH+";border:"+BlockBW+" "+BlockBS+" "+BlockBC+";overflow:hidden;visibility:hidden;'></span>"}
for(var i=0;i<Block.length;i++) NewBlock[i]=[]
FullString = new Array(Cells+1).join("1")
for(var y=0;y<Rows;y++){
 Map[y] = [];
 for(var x=0;x<Cells;x++) Map[y][x]=' ';
 }
Areas = Cells*(Rows-1);
BaseDiv.innerHTML = iHtml;
ReadyForDown(Obj2,ReadyBlockDiv);

</script>