gameobject.java

来自「这是我们的软件课程设计,J2ME开发的手机游戏. 是一个简单的射击游戏.TXT」· Java 代码 · 共 64 行

import javax.microedition.lcdui.game.*;
import javax.microedition.lcdui.*;


public class GameObject {
	public Sprite sprite;
	public boolean alive;
	private int lifecount=0;
	public int lifetime=0;
	private int speed=0;
	private int curx,cury;
	private int animcount=0;

	
	public GameObject(Image img,int width,int height){

		sprite=new Sprite(img,width,height);

		reset();
	}

	public void move(int dx,int dy,int screenwidth,int screenheight,int x,int y){
		curx = x+dx;
		cury = y+dy;
		if(curx >screenwidth-24 | curx<0 | cury>screenheight-24 |cury<0){
			sprite.setPosition(x,y);
		}
		else{
			sprite.move(dx,dy);
		}
	}

	public void moveto(int x,int y){
		sprite.setPosition(x,y);
	}

	public void update(){
		if(!alive) return;
		if(++animcount>speed){
			animcount=0;
			sprite.nextFrame();
			if(lifetime!=0 && ++lifecount>lifetime) alive=false;
		}
	}

	public void paint(Graphics g){
		if(!alive) return;
		sprite.paint(g);
	}
	public int getX(){
		return sprite.getX();
	}
	public int getY(){
		return sprite.getY();
	}
	public void reset(){
		alive=true;
		lifecount=0;
		animcount=0;
		sprite.setFrame(0);
	}
	
}