?? bullet.java
字號:
import javax.microedition.lcdui.*;
public class bullet
{
private Image img;
private int framewidth;
private int frameheight;
public int positionx;
public int positiony;
private int zhenindex;
private int allzhen;
private int speedx;
private int speedy;
public bullet(Image img,int framewidth,int frameheight,int positionx,int positiony,int speedx,int speedy)
{
this.img = img;
this.framewidth = framewidth;
this.frameheight = frameheight;
this.positionx = positionx;
this.positiony = positiony;
this.speedx = speedx;
this.speedy = speedy;
this.zhenindex = -1;
this.allzhen = (img.getWidth()/framewidth)*(img.getHeight()/frameheight)-1;
}
public void move()
{
positionx += speedx;
positiony += speedy;
}
public void draw(Graphics g)
{
if(++zhenindex > allzhen)
zhenindex = 0;
g.setClip(positionx,positiony,framewidth,frameheight);
g.drawImage(img,positionx-(zhenindex%(img.getWidth()/framewidth))*framewidth,positiony-(zhenindex/(img.getWidth()/framewidth))*frameheight,20);
g.setClip(0,0,176,208);
}
}
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