explosion.java

全面运用所学的JAVA理论对所设计的类进一步完善

package tankgame2007;

import java.awt.Image;
import java.applet.Applet;
import java.awt.Graphics;

public class Explosion{
  private Applet GameApplet;
  private Image[] explFrameImage;
  private int explNum = 0;  //爆炸图片的当前帧
  private int curX, curY;
  private boolean visible;

  public Explosion(Image[] explImages,Applet GameApplet) {
    this.GameApplet = GameApplet;
    explFrameImage = explImages;
    this.setVisible(false);
    curX = 0;
    curY = 0;
  }

  public void setVisible(boolean v) {
    visible = v;
  }

  public void updateState() { //更新爆炸的帧
    explNum = explNum +1;
    if(explNum >= explFrameImage.length -1){
      explNum = 0;
      this.setVisible(false);
    }
  }

  public void setLocation(int X, int Y) {
    curX = X;
    curY = Y;
  }

  public void paintSprite(Graphics g){
    if (visible == true) {
      g.drawImage(explFrameImage[explNum], curX, curY,34,33,GameApplet);
    }
  }
}