vehicleactor.java

来自「青蛙過河~ 就是青蛙過馬路 過馬路很危險請小心... that s a」· Java 代码 · 共 33 行

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

abstract public class VehicleActor extends Actor{
	
   protected int speed;         // speed (along x axis only)
   private long fluff = 0;

   public VehicleActor(Image img,int w,int h,int x,int y, int speedArg)
   {
      super(img, w, h);
      speed = speedArg;
      setPosition(x,y);
   }

   public void cycle(long deltaMS){
   	
      long ticks = (deltaMS + fluff) / 100;
      
	  int distance= getX() - (int) (speed * ticks);
	  
      // remember the bit we missed
      fluff += (deltaMS - (ticks * 100));

      // move based on our speed in pixels per ticks
      if (ticks > 0)
      	  setPosition(distance,getY());
      if(getX()<0)
   		  setPosition(185,getY());
   	}

}