igogame.js

《JavaScript王者归来》examples.rar

	}
	if (whiteToken == null)
	{
		whiteToken = IgoGame_WhiteStone;
	}
	
	var idx = IgoGame_getIndexer(pos);
	
	if (pos.stone == "B")
	{
		return this.board.substring(0,idx) + blackToken + this.board.substring(idx+1, this.board.length);
	}
	else if (pos.stone == "W")
	{
		return this.board.substring(0,idx) + whiteToken + this.board.substring(idx+1, this.board.length);
	}
	else
	{
		return this.board.substring(0,idx) + pos.stone + this.board.substring(idx+1, this.board.length);
	}
}
function IgoGame_RemoveStep(stepStr) //撤销当前走子
{
	var pos = IgoGame_getPosition(stepStr);
	return this.removeStone(pos);
}
function IgoGame_RemoveStone(pos) //提起棋子
{
	var idx = IgoGame_getIndexer(pos);

	if (pos.stone == "B" || pos.stone == "W")
	{
		return this.board.substring(0,idx) + IgoGame_InitBoard().charAt(idx) + this.board.substring(idx+1, this.board.length);
	}
}

function IgoGame_getBoardStone(pos) //将当前位置的棋子设成和棋盘上的棋子颜色相同
{
	if(pos != null)
	{
		var idx = IgoGame_getIndexer(pos);
		var st = this.board.charAt(idx);
		pos.stone = IgoGame_toStone(st);
	}
	return pos;
}

function IgoGame_TestTake(pos) //提子判断
{
   var pos_above = this.getStone(pos.above());
   var pos_nether = this.getStone(pos.nether());
   var pos_left = this.getStone(pos.leftside());
   var pos_right = this.getStone(pos.rightside());
   var isTake = false;

	if (pos_above != null && pos_above.stone != null && pos_above.stone != pos.stone)
	{
		if (this.canTake(pos_above))
		{
			this.take(pos_above);
			isTake = true;
		}
	}
	if (pos_nether != null && pos_nether.stone != null && pos_nether.stone != pos.stone)
	{
		if (this.canTake(pos_nether))
		{
			this.take(pos_nether);
			isTake = true;
		}
	}
	if (pos_left != null && pos_left.stone != null && pos_left.stone != pos.stone)
	{
		if (this.canTake(pos_left))
		{
			this.take(pos_left);
			isTake = true;
		}
	}
	if (pos_right != null && pos_right.stone != null && pos_right.stone != pos.stone)
	{
		if (this.canTake(pos_right))
		{
			this.take(pos_right);
			isTake = true;
		}
	}
	if (this.canTake(pos))
	{
		this.takeSelf = true;
		this.take(pos);
		isTake = true;
	}
	return this.isTake;
}

function IgoGame_Take(pos) //提子
{
	var pos_left = this.getStone(pos.leftside());
	var pos_right = this.getStone(pos.rightside());
	var pos_above = this.getStone(pos.above());
	var pos_nether = this.getStone(pos.nether());
	
   this.board = this.removeStone(pos);
   if (this.stonesTake == null)
   {
	   this.stonesTake = new Label(this.currentStep, pos);
   }
   else
   {
	   this.stonesTake.append(new Label(this.currentStep, pos));
   }	

   if (pos_above != null && pos_above.stone == pos.stone)
   {
		this.take(pos_above);
   }
   if (pos_nether != null && pos_nether.stone == pos.stone)
   {
		this.take(pos_nether);
   }
   if (pos_left != null && pos_left.stone == pos.stone)
   {
		this.take(pos_left);
   }
   if (pos_right != null && pos_right.stone == pos.stone)
   {
		this.take(pos_right);
   }
}

function IgoGame_CanTake(pos)
{
	var canTake = true;
	var pos_left = this.getStone(pos.leftside());
	var pos_right = this.getStone(pos.rightside());
	var pos_above = this.getStone(pos.above());
	var pos_nether = this.getStone(pos.nether());
	
	if (pos_left != null && pos_left.stone == null
		|| pos_right != null && pos_right.stone == null
		|| pos_above != null && pos_above.stone == null
		|| pos_nether != null && pos_nether.stone == null)
	{
		return false;
	}

	if (canTake && pos_left != null && pos_left.stone == pos.stone)
	{
		this.board = this.putStone(pos.reverse());
		canTake = this.canTake(pos_left);
		this.board = this.putStone(pos.reverse());
	}

	if (canTake && pos_right != null && pos_right.stone == pos.stone)
	{
		this.board = this.putStone(pos.reverse());
		canTake = this.canTake(pos_right);
		this.board = this.putStone(pos.reverse());
	}

	if (canTake && pos_above != null && pos_above.stone == pos.stone)
	{
		this.board = this.putStone(pos.reverse());
		canTake = this.canTake(pos_above);
		this.board = this.putStone(pos.reverse());
	}

	if (canTake && pos_nether != null && pos_nether.stone == pos.stone)
	{
		this.board = this.putStone(pos.reverse());
		canTake = this.canTake(pos_nether);
		this.board = this.putStone(pos.reverse());
	}

	return canTake;
}

/***********************************************************************************************\
 *		Static Internal Functions ——  Please do not use them outside of this file              *
\***********************************************************************************************/

var IgoGame_BlackStone = "●";
var IgoGame_WhiteStone = "○";
var IgoGame_NewBlackStone = "◆";
var IgoGame_NewWhiteStone = "◇";
var IgoGame_None = null;

function IgoGame_InitBoard()
{
		var _board = "19 ┌┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┐\n"+
						 "18 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "17 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "16 ├┼┼╋┼┼┼┼┼╋┼┼┼┼┼╋┼┼┤\n"+
						 "15 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "14 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "13 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "12 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "11 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 "10 ├┼┼╋┼┼┼┼┼╋┼┼┼┼┼╋┼┼┤\n"+
						 " 9 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 8 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 7 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 6 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 5 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 4 ├┼┼╋┼┼┼┼┼╋┼┼┼┼┼╋┼┼┤\n"+
						 " 3 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 2 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┼┤\n"+
						 " 1 └┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘\n"+
						 "    A B C D E F G H J K L M N O P Q R S T"; 
		return _board;
}

function IgoGame_toStone(chr) //将标记转换成相应的黑白子
{
	if (chr == IgoGame_BlackStone || chr == IgoGame_NewBlackStone)
	{
		return 'B';
	}
	else if (chr == IgoGame_WhiteStone || chr==IgoGame_NewWhiteStone)
	{
		return 'W';
	}
	else
	{
		return null;
	}
}

function IgoGame_isStone(chr) //判断当前标记是否是棋子
{
	if (chr == IgoGame_BlackStone || chr == IgoGame_WhiteStone || chr == IgoGame_NewBlackStone || chr == IgoGame_NewWhiteStone)
	{
		return true;
	}
	else
	{
		return false;
	}
}

function IgoGame_getPosition(stepStr)  //将SGF指令转换为对应的棋盘状态
{
	var pos = new BoardPosition(-1, -1, IgoGame_None);

	var i = stepStr.indexOf('[');
	
	if (i != -1)
	{
		pos.stone  = stepStr.substring(0, i);
		pos.X = (stepStr.charCodeAt(i+1) - "a".charCodeAt(0));
		pos.Y = (stepStr.charCodeAt(i+2) - "a".charCodeAt(0));
	}
	return pos;
}

function IgoGame_getIndexer(pos) //从棋盘状态获得对应的棋盘字符串索引
{
	return 3 + pos.X + 23 * pos.Y;
}

/**********************************************************************************************\
 *  Class BoardPosition                                                                                                                                      *
\**********************************************************************************************/

function BoardPosition(x, y, st)
{
	this.X = x;
	this.Y = y;
	this.stone = st;
	this.above = BoardPosition_Above;
	this.nether = BoardPosition_Nether;
	this.leftside = BoardPosition_LeftSide;
	this.rightside = BoardPosition_RightSide;
	this.reverse = BoardPosition_Reverse;
}

var IgoGame_DefaultBoardSize = 19;

function BoardPosition_Reverse() //将棋子颜色取反
{
	if (this.stone == 'W')
	{
		this.stone = 'B';
	}
	else if (this.stone == 'B')
	{
		this.stone = 'W';
	}
	return this;
}

function BoardPosition_Above()   //获得上方相邻棋子的位置
{
	if (this.Y > 0)
	{
		return new BoardPosition(this.X, this.Y - 1);
	}
	return null;
}

function BoardPosition_Nether()  //获得下方相邻的棋子的位置
{
	if (this.Y < IgoGame_DefaultBoardSize - 1)
	{
		return new BoardPosition(this.X, this.Y + 1);
	}
	return null;
}

function BoardPosition_LeftSide() //获得左面相邻的棋子的位置
{
	if (this.X > 0)
	{
		return new BoardPosition(this.X - 1, this.Y);
	}
	return null;
}

function BoardPosition_RightSide() //获得右面相邻的棋子的位置
{
	if (this.X < IgoGame_DefaultBoardSize - 1)
	{
		return new BoardPosition(this.X + 1, this.Y);
	}
	return null;
}

/*****************************************************************************\
 *   Class Comment                                                           *
\*****************************************************************************/

function Comment(_step, _text)
{
	this.step = _step;
	this.text = _text;
	this.next = null;
	
	this.append = Comment_Append;
}

function Comment_Append(comm)
{
	var current = this;
	while (current.next != null)
	{
		current = current.next;
	}
	current.next = comm;
}

/*****************************************************************************\
 *   Class Label                                                             *
\*****************************************************************************/

function Label(_step, _pos)
{
	this.step = _step;
	this.pos = _pos;
	this.next = null;

	this.append = Label_Append;
}

function Label_Append(lab)
{
	var current = this;
	while (current.next != null)
	{
		current = current.next;
	}
	current.next = lab;
}