package lyj.chess.main;
/**
 * 五子棋判断输赢类
 * @author LYJ
 *
 */
public class CheckWhoWin {
	
	private static int HOW_MANY=5;

	/**
	 * 判断棋子横线是否五连珠
	 * @param row 横坐标
	 * @param column 纵坐标
	 * @param chessType
	 * @return
	 */
	public boolean  acrossLine(int [][]chess,int row,int column,int chessType){
		int count=0; 
		int origalX=row,origalY=column;
		while(column>=0&&chess[column][row]==chessType){
			count++;
			column--;
			if(count==HOW_MANY){
				return true;
			}
		}
		column=origalY+1;
		while(column<chess[0].length&&chess[column][row]==chessType){
			count++;
			column++;
			if(count==HOW_MANY){
				return true;
			}
			
		}
		row=origalX;column=origalY;
		return false;
	}
	/**
	 * 判断纵线是否五连珠
	 * @param chess
	 * @param row
	 * @param column
	 * @param chessType
	 * @return
	 */
     public  boolean  upRightLine(int [][]chess,int row,int column,int chessType){
		int count=0; 
		//往上
		int origalX=row,origalY=column;
		while(row>=0&&chess[column][row]==chessType){
			count++;
			row--;
			if(count==HOW_MANY){
				return true;
			}
		}
		row=origalX+1;
		
		//往下
		while(row<chess.length&&chess[column][row]==chessType){
			count++;
			row++;
			if(count==HOW_MANY){
				return true;
			}
			
		}
		row=origalX;column=origalY;
		return false;
	}
     /**
      * 判断左斜
      * @param chess
      * @param row
      * @param column
      * @param chessType
      * @return
      */
     public boolean leftXie(int [][]chess,int row,int column,int chessType){
    	 int count=0;
    	 int origalX=row,origalY=column;
    	 while(row>=0&&column<=chess[0].length-1&&chess[column][row]==chessType){
    		 count++;
    		 column++;
 			 row--;
 			if(count==HOW_MANY){
 				return true;
 			}
 		}
    	 row=origalX+1;
    	 column=origalY-1;
    	 
    	 while(row<=chess.length-1&&column>=0&&chess[column][row]==chessType){
    		 count++;
  			row++;
  			column--;
  			if(count==HOW_MANY){
  				return true;
  			}
  		}
 		row=origalX;column=origalY;
    	 return false;
     }
     /**
      * 判断右斜
      * @param chess
      * @param row
      * @param column
      * @param chessType
      * @return
      */
     public boolean rightXie(int [][]chess,int row,int column,int chessType){
    	 int count=0;
    	 int origalX=row,origalY=column;
    	 while(row<=chess.length-1&&column<chess[0].length-1&&chess[column][row]==chessType){
 			row++;
 			column++;
 			count++;
 			if(count==HOW_MANY){
 				return true;
 			}
 		}
    	 row=origalX-1;
    	 column=origalY-1;
    	 while(row>=0&&column>=0&&chess[column][row]==chessType){
  			row--;
  			column--;
  			count++;
  			if(count==HOW_MANY){
  				return true;
  			}
  		}
 		row=origalX;column=origalY;
    	 return false;
     }
   
   
   
	
}