gdgamecanvas.java

GameCanvas 游戏开发处女做可以当作实例学习里面还有好多需要完善

package Com.JXT.MIDlet;

import java.io.IOException;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.lcdui.game.TiledLayer;
  
public class GDGameCanvas extends GameCanvas implements Runnable{
    private Image img,img1;
    private ManCanvas man;
    GDGameCanvas g;
    int direction=0;
    int x=0,y=0;      
    private Graphics gra;  
    private TiledLayer tlRoad; 
    private TiledLayer tlWall;
    private TiledLayer tlPT;  
    LayerManager Layer;
	protected GDGameCanvas(boolean t) {
		super( t);
		g=this;
		Layer=new LayerManager();//创建图层管理器
		gra=this.getGraphics();  //
		img=this.createImage11();//创建地图 
		img1=this.createImage2(); 
		tlRoad=new TiledLayer(8,8,img,img.getWidth()/2,img.getHeight()); 
		tlWall=new TiledLayer(8,8,img,img.getWidth()/2,img.getHeight()); 
		tlPT  =new TiledLayer(3,4,img1, img1.getWidth()/3,img1.getHeight()/4); 
		int cellShuzhu[][]=new int[][]
		                             {
				{ 1, 1, 1, 1, 1, 1, 1, 1 },  
				{ 1, 1, 2, 2, 2, 2, 2, 2},
				{ 1, 1, 2, 1, 1, 1, 1, 1 },
				{ 2, 2, 2, 2, 2, 2, 2, 2 },
				{ 1, 1, 2, 1, 1, 1, 1, 1 },
				{ 1, 1, 2, 2, 2, 2, 2, 2 }, 
				{ 1, 1, 1, 1, 1, 1, 1, 1 },
				{ 1, 1, 1, 1, 1, 1, 1, 1 } 
		                             };
		
		 for(int i=0;i<8;i++)
		 {
			 for(int j=0;j<8;j++)
			 {
				 if(cellShuzhu[i][j]==1)
				 {
					
					tlRoad.setCell(j, i, cellShuzhu[i][j]);
				 }
				 else
				 { 
				 tlWall.setCell(j, i, cellShuzhu[i][j]);
				 } 
			 }  
			 
		 }
		 
		Layer.append(tlPT);
		Layer.append(tlRoad);  //添加图层
		Layer.append(tlWall);
		new Thread(this).start();
		
	} 
	public void run() { 
		while(true)
		{    
			synchronized(this)
			{
			gra.setColor(255, 255, 255);
			gra.fillRect(0, 0, this.getWidth(), this.getHeight());
			Layer.setViewWindow(x, y, this.getWidth(), this.getHeight());  //设置窗口可视
			tlPT.setCell(2, 2, 10);
			Layer.paint(gra, 0, 0); 
			switch(direction)
			{
			case 1: 
				tlPT.setCell(2, 2, 7);  
			    break;
			case 2:
				tlPT.setCell(2, 2, 1); 
			    break;
			case 3:
				tlPT.setCell(2, 2, 4);  
			    break;
			case 4:  
				tlPT.setCell(2, 2, 10); 
			    break;
			}    
			this.flushGraphics();
			x++;   
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			}
		}  
	}
    
	public Image createImage11()
	{  
		Image img1 = null;
		try {
			img1=Image.createImage("/2ge.png");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();  
		}
		return img1;
		  
	}
	public Image createImage2()
	{   
		Image img1 = null; 
		try {
			img1=Image.createImage("/man.png");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();  
		}
		return img1;
		  
	}
	public void  keyPressed(int key)
	{
		switch(getGameAction(key) )
		{
		case UP: 
			direction=1;
			break;
		case DOWN:
			direction=2;
			break;
		case LEFT:
			direction=3;
			break;
		case RIGHT: 
			direction=4;
				break;
		}

}
}