backgroundlayer.java

J2ME手机游戏:是男人就下100层,根据FLASH游戏改写

package src;

import java.io.IOException;

import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.game.TiledLayer;

public class BackGroundLayer {
	public  long DOWN_HEIGHT = 0;
	public int floorsCount = 0;
	private TiledLayer titleLayer = null;
	private TiledLayer wallLayer = null;
	private final int WALL_COL = 12;
	private final int WALL_ROW = 15;
	private final int TITLE_COL = 13;
	private final int TITLE_ROW = 2;
	private final int CELL_WIDTH = 20;
	private final int CELL_HEIGHT = 20;
	
	
	
	private final int[] titleLayerMap = {
											17,0,0,1,2,5,5,5,5,3,0,0,17,
											0,4,4,4,4,4,4,4,4,4,4,4,0
									
										   };			
	private final int[] wallLayerMap = {
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16,
											15,0,0,0,0,0,0,0,0,0,0,16
											};			
										   
	
	public BackGroundLayer(LayerManager layerManager)
	{
	  
	  try {
		  
		   titleLayer = new TiledLayer(TITLE_COL,TITLE_ROW,
				                            Image.createImage("/res/background.png"),
				                            CELL_WIDTH ,CELL_HEIGHT );
		   wallLayer = new TiledLayer(WALL_COL,WALL_ROW,
				   						Image.createImage("/res/background.png"),
				   						CELL_WIDTH ,CELL_HEIGHT );
		   layerManager.append(this.titleLayer);
		   layerManager.append(this.wallLayer);
	} catch (IOException e) {
		// TODO 自动生成 catch 块
		e.printStackTrace();
	}

	 init();
	 
	}
	
	public void init()
	{
		
		
		for(int i = 0;i < this.titleLayerMap.length;i++)
		{
			int col = i % TITLE_COL;
		    int row = (i - col)/TITLE_COL;
			this.titleLayer.setCell(col, row, this.titleLayerMap[i]);
			//System.out.println(col+"****"+row+ "\n");
		}
		
		for(int i = 0;i < this.wallLayerMap.length;i++)
		{
			int col = i % WALL_COL;
		    int row = (i - col)/WALL_COL;
			this.wallLayer.setCell(col, row, this.wallLayerMap[i]);
			//System.out.println(col+"****"+row+ "\n");
		}
	
		titleLayer.setPosition(-10, 0);
		wallLayer.setPosition(0, 20);
	}
	public void update()
	{
		
	int wallLayerY = wallLayer.getY();		
	if(wallLayerY < 0)
	    wallLayer.setPosition(0, 17);//为了使墙面移动显示流畅使用参数17
	else
		wallLayer.move(0, -GameMIDlet.MOVE_UP_SPEED);
	
	DOWN_HEIGHT+= GameMIDlet.MOVE_UP_SPEED;
	
	floorsCount = (int)DOWN_HEIGHT/250;
	refreshTitleNum(floorsCount);
	
		
	
	}
	private void refreshTitleNum(int count)
	{
		 String s =  Integer.toString(count);
		 char[] a = s.toCharArray();
		 int[]  b = {0,0,0,0};
		 for(int i = a.length-1,j=b.length-1;i >= 0;i--,j--)
		    b[j] = Integer.parseInt(String.valueOf(a[i]));
			 
		    
		 for(int i = 0;i < b.length;i++)
			{
				titleLayer.setCell(5+i, 0, b[i]+5);
			}
	}

	public  TiledLayer getTitleLayer()
	{
		return titleLayer;
	}
	public TiledLayer getWallLayer()
	{
		return wallLayer;
	}

}