wj.java

坦克大战类游戏实现坦克的基本功能控制坦克地图行走

import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;

public class WJ extends Sprite 
{int m;
	public WJ(Image im,int w,int h,int x,int y,int[]a)
	{
		super(im,w,h);
		this.setFrameSequence(a);
		this.setPosition(x,y);
	}
	public void move(boolean u,boolean d,boolean l,boolean r,BJ bj,BJ bj2,MC mc)
	{
	
		this.nextFrame();
		if(u==true)
		{  
			this.move(0,-5);
			if(this.collidesWith(bj,true)==true||this.collidesWith(bj2,true)==true)
			{
				this.move(0,5);
			}
			if(this.getY()-mc.cy<100)
			{
				mc.cy-=5;
				if(mc.cy<0)
				{
					mc.cy=0;
				}
			}
		}
		
		if(d==true)
		{
		
			this.move(0,5);
			if(this.collidesWith(bj,true)==true||this.collidesWith(bj2,true)==true)
			{
				this.move(0,-5);
			}
			if(this.getY()-mc.cy>220)
			{
				mc.cy+=5;
				if(mc.cy>250)
				{
					mc.cy=250;
				}
			}
		}
		
		if(l==true)
		{
			
			this.move(-5,0);
			if(this.collidesWith(bj,true)==true||this.collidesWith(bj2,true)==true)
			{
				this.move(5,0);
			}
			if(this.getX()-mc.cx<40)
			{
				mc.cx-=5;
				if(mc.cx<0)
				{
					mc.cx=0;
				}
			}
		}
		
		if(r==true)
		{
			
			this.move(5,0);
			if(this.collidesWith(bj,true)==true||this.collidesWith(bj2,true)==true)
			{
				this.move(-5,0);
			}
			if(this.getX()-mc.cx>100)
			{
				mc.cx+=5;
				if(mc.cx>340)
				{
					mc.cx=340;
				}
			}
		}
		
//		System.out.println("cx="+mc.cx+"cy="+mc.cy);
		
	}

}