MoneyButton.java

import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class MoneyButton here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class MoneyButton extends Button {
  boolean ifDiscbetion = true;
  int initialMoney = 0; // 0~5000 +-1000
  private GreenfootImage unclickedMoneyButton =
      new GreenfootImage("button/ImoneyButton_unpressed_0.png");
  private GreenfootImage clickedMoneyButton =
      new GreenfootImage("button/ImoneyButton_pressed_0.png");

  /**
   * Act - do whatever the MoneyButton wants to do. This method is called whenever the 'Act' or
   * 'Run' button gets pressed in the environment.
   */
  public MoneyButton() {
    super(true);
  }

  public int getInitialMoney() {
    return initialMoney;
  }

  public void act() {
    if (Greenfoot.mouseClicked(this)) {
      if (initialMoney < 5000) {
        initialMoney += 1000;
      } else {
        initialMoney = 0;
      }
      clickedMoneyButton =
          new GreenfootImage("button/ImoneyButton_pressed_" + initialMoney + ".png");

      clickedMoneyButton.scale(400, 120);
      setImage(clickedMoneyButton);
    } else {
      unclickedMoneyButton =
          new GreenfootImage("button/ImoneyButton_unpressed_" + initialMoney + ".png");
      unclickedMoneyButton.scale(400, 120);
      setImage(unclickedMoneyButton);
    }
  }
}