sweepmine.java

java编写的一个小的扫雷游戏

//This class is about the search of the selected grid to show, when printing the left 
// key of the mouse, it will view the content of the button, if the content is a empty, ok, it will 
//search the grid’s around, if it find another empty grid, it will continue to search.

import java.awt.*;

public class SweepMine {
	public void bfsSweeper ( ButtonMine[] button, int index ){
		int firstX , firstY  , seatX, seatY ;
		int sizeX = 10, sizeY = 10;
		int mineIndex , mineIndexNow; 
		int nowLength = 1 , newLength = 1, newBegin = 0  ;
		int [] mineQueue = new int [ 1000 ];		
		button [ index ].setBackground(Color.gray);
		firstX = button [ index ].x;
		firstY = button [ index ].y ;
		button [ index ].selectShow = true;
		mineQueue [ 0 ] = index ;
		int[][] move  = new int[][]{ 
		        {-1,-1}, { 1, -1}, {0,-1}, {-1,0},
		        {0,1},{1,0},{1,1},{-1,1}};
		for(;;){
			for (int i = newBegin ; i < nowLength ; i ++ )
				for (int j = 0 ; j < 8 ; j ++ )
				{   mineIndex = mineQueue [ i ];
					seatX = button [ mineIndex ].x + move [ j ] [ 0 ];
					seatY = button [ mineIndex ].y + move [ j ] [ 1 ];
					mineIndexNow = seatX * 10 + seatY ;
					if ( seatX >=0 && seatX <sizeX  && seatY >=0 && seatY < sizeY && 
							button [ mineIndexNow ].selectShow ==false && button[mineIndexNow].markedMine==false  )
					{
						button [ mineIndexNow ].selectShow = true;
						if ( button [ mineIndexNow ].mineCounter == 0 && button [ mineIndexNow ].inButton==0 ) 
						{   button [ mineIndexNow ].setBackground(Color.gray);
							mineQueue [ newLength++ ] = mineIndexNow;}
						else if ( button [ mineIndexNow ].inButton ==0  )
						{   int mineNum = button [ mineIndexNow ].mineCounter; 
							char mineCh = (char) ( mineNum + 48 );
							button [ mineIndexNow].setText(mineCh+"");}
					}		
				}
			if ( nowLength == newLength ) 
				  break;
			else {
				newBegin = nowLength;
				nowLength = newLength;}
			}		
	}
}