javascript脚本写的俄罗斯方块-JAVA91知识库

javascript脚本写的俄罗斯方块

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var Cols=10,Rows=20,Sqlen=16;
var Color=new Array(8);
var delLine=new Array();
var CLoc=new Array();
var RLoc=new Array();
var CurSq,NextSq;
var type=-1,oldtype;
var delay=new Array(600,500,400,300,200,100,90,80,70);
var TimerID;
var pos=0,end,level=0,score=0,lines=0;
var isOver=false,isPause=false;

Color[0]="#d0d0d0";
Color[1]="red";
Color[2]="green"
Color[3]="cyan";
Color[4]="yellow";
Color[5]="orange";
Color[6]="pink";
Color[7]="blue";

function GameArea(row,col,name){	
	var s="<TABLE BORDER=1 cellspacing=0 cellpadding=1 bgcolor="+Color[0]+">";	
	for(var i=0;i<row;i++){		
		s=s+"<TR Height="+Sqlen+">";		
		for(var j=0;j<col;j++){			
			var id=name+i+"#"+j;			
			s=s+"<TD Width="+Sqlen+" class=btnup id="+id;			
			s=s+" style="background:"+Color[0]+""> </TD>"		
		}
		s=s+"</TR>";		
	}
	s=s+"</TABLE>";	
	return s;		
}

function Init(){	
	GameBody.innerHTML=GameArea(Rows,Cols,'Main');	
	GameForecast.innerHTML=GameArea(4,4,'Forecast');	
}

function Square(cols,rows,color){	
	this.rows=rows;	
	this.cols=cols;	
	this.color=color;		
}

function chooseSquare(type,x,y){	
	var sq=new Array(4);	
	switch(type){		
		case 0:
		sq[0]=new Square(x-1,y,1);		
		sq[1]=new Square(x,y,1);		
		sq[2]=new Square(x+1,y,1);		
		sq[3]=new Square(x+2,y,1);		
		break;		
		case 1:
		sq[0]=new Square(x,y,5);		
		sq[1]=new Square(x,y+1,5);		
		sq[2]=new Square(x+1,y+1,5);		
		sq[3]=new Square(x,y+2,5);		
		break;		
		case 2:
		sq[0]=new Square(x,y,2);		
		sq[1]=new Square(x,y+1,2);		
		sq[2]=new Square(x+1,y+1,2);		
		sq[3]=new Square(x+1,y+2,2);		
		break;		
		case 3:
		sq[0]=new Square(x+1,y,7);		
		sq[1]=new Square(x+1,y+1,7);		
		sq[2]=new Square(x,y+1,7);		
		sq[3]=new Square(x,y+2,7);		
		break;		
		case 4:
		sq[0]=new Square(x,y,3);		
		sq[1]=new Square(x+1,y,3);		
		sq[2]=new Square(x,y+1,3);		
		sq[3]=new Square(x+1,y+1,3);		
		break;		
		case 5:
		sq[0]=new Square(x,y,6);		
		sq[1]=new Square(x+1,y,6);		
		sq[2]=new Square(x+1,y+1,6);		
		sq[3]=new Square(x+1,y+2,6);		
		break;		
		case 6:
		sq[0]=new Square(x+1,y,4);		
		sq[1]=new Square(x,y,4);		
		sq[2]=new Square(x,y+1,4);		
		sq[3]=new Square(x,y+2,4);		
		break;			
	}
	return sq;	
}

function reDraw(name,sq){	
	var obj;	
	for(var i=0;i<sq.length;i++){		
		obj=document.all(name+sq[i].rows+"#"+sq[i].cols);		
		obj.style.background=Color[sq[i].color];		
	}	
}
function clearDraw(name,sq){	
	var obj;	
	for(var i=0;i<sq.length;i++){		
		obj=document.all(name+sq[i].rows+"#"+sq[i].cols);		
		obj.style.background=Color[0];		
	}	
}

function isBounds(sq){	
	for(var i=0;i<sq.length;i++){		
		if(sq[i].cols<0||sq[i].cols>9||sq[i].rows<0||sq[i].rows>19)
		return false;			
	}
	return true;	
}

function SortSquare(sq,name,isMax){	
	if(isMax){		
		var Max=0;		
		if(name=="Rows"){			
			for(var i=0;i<sq.length;i++){				
				if(sq[i].rows>Max)Max=sq[i].rows;			
			}			
		}
		else {			
			for(var i=0;i<sq.length;i++){				
				if(sq[i].cols>Max)Max=sq[i].cols;			
			}			
		}
		return Max;		
	}else {		
		var Min=20;		
		if(name=="Rows"){			
			for(var i=0;i<sq.length;i++){				
				if(sq[i].rows<Min)Min=sq[i].rows;			
			}			
		}else {			
			for(var i=0;i<sq.length;i++){				
				if(sq[i].cols<Min)Min=sq[i].cols;			
			}			
		}
		return Min;		
	}	
}

function StartGame(){	
	start.disabled=true;	
	pause.focus();	
	type=parseInt(Math.random()*7);	
	oldtype=type;	
	type=parseInt(Math.random()*7);	
	var m=4/2-1;	
	NewSq=chooseSquare(type,m,0);	
	reDraw('Forecast',NewSq);	
	Start();		
}
function Start(){	
	if(isOver){		
		var s="本次游戏结束！ ";
		OverGame(s);		
	}
	gScore.innerText=score;	
	gLine.innerText=lines;	
	gLevel.innerText=level;	
	oldtype=type;	
	clearDraw('Forecast',NewSq);	
	type=parseInt(Math.random()*7);	
	var m=4/2-1;	
	NewSq=chooseSquare(type,m,0);	
	reDraw('Forecast',NewSq);	
	var mm=Cols/2-1;	
	CurSq=chooseSquare(oldtype,mm,0);	
	reDraw('Main',CurSq);	
	window.clearInterval(TimerID);	
	TimerID=window.setInterval("Run()",delay[level]);	
	
}
function Run(){	
	if(isPause)return ;	
	if(MoveCurSq(0,1,false)==false){		
		window.clearInterval(TimerID);		
		if(RemoveLines()==true){			
			DelLines();			
			lines=lines+delLine.length;			
			switch(delLine.length){				
				case 1:
				score=score+100;				
				break;				
				case 2:
				score=score+300;				
				break;				
				case 3:
				score=score+700;				
				break;				
				case 4:
				score=score+1000;				
				break;				
			}			
			level=parseInt(score/10000);			
		}
		Start();			
	}	
}

function RemoveLines(){	
	var obj,m=0;	
	var isRemove=true;	
	var searchPos=true;	
	var del=new Array();	
	for(var i=19;i>=0;i--){		
		for(var j=0;j<10;j++){			
			obj=document.all("Main"+i+"#"+j);			
			if(obj.style.background==Color[0]){				
				isRemove=false;				
			}else {			
				searchPos=false;				
			}			
		}
		if(searchPos){			
			end=i;			
			if(del.length>0){
				delLine=del;
				return true;				
			}else {
				return false;				
			}			
		}
		if(isRemove){
			del[m]=i;
			m++;			
		}
		searchPos=true;		
		isRemove=true;		
	}	
}

function DelLines(){	
	var deleted=0;	
	var obj;	
	for(var i=0;i<delLine.length;i++){		
		for(var j=0;j<10;j++){			
			obj=document.all("Main"+delLine[i]+"#"+j);			
			obj.style.background=Color[0];			
		}
		deleted=deleted+1;		
		if(delLine.length>deleted){			
			if(delLine[i]-delLine[i+1]>1)ReDrawLine(delLine[i+1],delLine[i],deleted);			
		}		
	}
	ReDrawLine(end,delLine[delLine.length-1],deleted);	
}

function ReDrawLine(endline,startline,moveline){	
	var obj;	
	for(var i=startline-1;i>endline;i--){		
		for(var j=0;j<10;j++){			
			obj=document.all("Main"+i+"#"+j);			
			var oldcolor=obj.style.background;			
			obj.style.background=Color[0];			
			var rowid=i+moveline;			
			obj=document.all("Main"+rowid+"#"+j);			
			obj.style.background=oldcolor;			
		}		
	}	
}

function MoveSquare(from,to){	
	if(isBounds(to)==false)return false;	
	var obj;	
	loop:
	for(var i=0;i<to.length;i++){		
		obj=document.all("Main"+to[i].rows+"#"+to[i].cols);		
		if(obj.style.background!=Color[0]){			
			for(var j=0;j<from.length;j++)
			if(to[i].cols==from[j].cols&&to[i].rows==from[j].rows&&to[i].color==from[j].color)
			continueloop;
			return false			
		}		
	}
	return true;	
}

function MoveCurSq(x,y,isRotate){	
	NextSq=new Array(CurSq.length);	
	for(var i=0;i<CurSq.length;i++){		
		if(isRotate){			
			var dx=CurSq[i].cols-CurSq[0].cols;			
			var dy=CurSq[i].rows-CurSq[0].rows;			
			NextSq[i]=new Square(CurSq[0].cols-dy,CurSq[0].rows+dx,CurSq[i].color);		}else 
			NextSq[i]=new Square(CurSq[i].cols+x,CurSq[i].rows+y,CurSq[i].color);		
	}
	if(isRotate)reNextSq();	
	if(MoveSquare(CurSq,NextSq)==false){		
		for(var i=0;i<CurSq.length;i++){			
			if((CurSq[i].rows==0&&CurSq[i].cols==Cols/2)||(CurSq[i].rows==0&&CurSq[i].cols==Cols/2-1))
			isOver=true;			
		}
		return false;		
	}	
	clearDraw('Main',CurSq);	
	CurSq=NextSq;	
	reDraw('Main',CurSq);	
	return true;	
}

function reNextSq(){	
	var minCols=SortSquare(NextSq,'Cols',false);	
	var minRows=SortSquare(NextSq,'Rows',false);	
	var maxCols=SortSquare(NextSq,'Cols',true);	
	var maxRows=SortSquare(NextSq,'Rows',true);		
	if(minCols<0)changeNextSq('Cols',-minCols);	
	if(minRows<0)changeNextSq('Rows',-minRows);	
	if(maxCols>9)changeNextSq('Cols',9-maxCols);	
	if(maxRows>19)changeNextSq('Rows',19-maxRows);	
}

function changeNextSq(name,pos){	
	for(var i=0;i<NextSq.length;i++){		
		if(name="Rows")
		NextSq[i].rows=NextSq[i].rows+pos;		
		else 
		NextSq[i].cols=NextSq[i].cols+pos;		
	}	
}

function keyDown(){	
	switch(event.keyCode){		
		case 40:
		MoveCurSq(0,1,false);		
		break;		
		case 37:
		MoveCurSq(-1,0,false);		
		break;		
		case 38:
		MoveCurSq(0,0,true);		
		break;		
		case 39:
		MoveCurSq(1,0,false);		
		break;		
	}	
}

function PauseGame(){	
	if(pause.innerText=="暂停游戏"){		
		isPause=true;		
		pause.innerText="继续游戏";		
		pause.focus();		
	}
	else {		
		isPause=false;		
		pause.innerText="暂停游戏";		
		pause.focus();		
		Run();		
	}	
}

function OverGame(str){	
	if(typeof(str)=="undefined")str="你的得分："+score+"。是否重玩游戏？ ";	
	else str=str+"你的得分："+score+"。是否重玩游戏？ ";	
	var isOK=window.confirm(str);	
	if(!isOK){		
		document.location.reload();		
		window.close();		
	}else {		
		document.location.reload();			
	}	
}