cannontarget.java

来自「一些JAVA的小程序」· Java 代码 · 共 22 行

import java.awt.*;

public class CannonTarget {

  public CannonTarget(Point loc) {
    location = loc;
  }

  private Point location;
  private static final int width = 50;

  public boolean hitTarget(double x){
      //see if target has been hit
    return(x > location.x) && (x-20 < location.x + width);
  }

  public void paint(Graphics g) {
    g.setColor(Color.red);
    g.fillRoundRect(location.x, location.y, width, 10, 6, 6);
  }
}