gear.java

BravePiglet.rar 勇敢的猪Java游戏 由本人原创

package com.lovo.pig.model;

import java.awt.Graphics;
import java.awt.event.MouseEvent;

import com.lovo.pig.view.MainFrame;


/**
 * 轮子类
 */
public class Gear {
	private MainFrame  mf;
	//上一次鼠标位置
	private int lastY = 430;
	//相对上一次,鼠标移动距离
	private int distance = 0;
	

	public Gear(MainFrame  mf){
		this.mf = mf;
	}
	
	public void draw (Graphics g) {
	    if(distance < 0){
			g.drawImage(mf.images.getImgGears()[0], 699, 77,null);
		}else if(distance > 0){
			g.drawImage(mf.images.getImgGears()[1], 699, 77,null);
		}
	}
	
	/**
	 * 记录当前鼠标位置和移动距离
	 */
    public void move (MouseEvent e) {
    	if(e.getY() <= 150 || e.getY() >= 430){
    		distance  = 0;
    	}else{
    		distance = e.getY() - lastY;
    	}
		lastY = e.getY();
	} 
}