Virtual Pet Java Applet Program

// Sammy Samkough
// Virtual Pet Object
// Spec: This class encapsulates all of the things we wish our Virtual Pet to be able to do.
//		 We want to model the behavior of an actual pet.

import java.util.Random;
import java.awt.*;
import javax.swing.*;

public class VirtualPet
{
	// You can keep these categories and icons, or make your own:
	private int step, happiness, health, food;
	private double age;
	private ImageIcon icoHappy, icoSad, icoHungry, icoUnhealthy, icoDead;
	private boolean notDead;

	/** initialize data to zero to start with
	*	instantiate ImageIcons to the graphics files that you saved
	* 	ie icoHappy = new ImageIcon("HappyPet.gif") etc.
	*/
	public VirtualPet()
	{
		// Categories
		age = 0;
		step = 5;
		happiness = 5;
		health = 5;
		food = 5;
		notDead = true;

		// ImageIcons
		icoHappy = new ImageIcon("HappyPet.jpg");
		icoSad = new ImageIcon("SadPet.jpg");
		icoHungry = new ImageIcon("HungryPet.jpg");
		icoUnhealthy = new ImageIcon("UnhealthyPet.jpg");
		icoDead = new ImageIcon("DeadPet.jpg");
	}

	/**	Post Condition: health and happiness are increased
	*				  	food is decreased
	*	These should be random amounts in a range that you create
	*/
	public void walkPet()
	{
		if (notDead == true)
		{
			health += (int) (Math.random() * 5) + 1;
			happiness += (int) (Math.random() * 5) + 1;
			food -= (int) (Math.random() * 3) + 1;
		}
	}

	/** Post Condition: food is increased by a small random amount
	*/
	public void feedPet()
	{
		if (notDead == true)
		{
			food += (int) (Math.random() * 3) + 1;
		}
	}

	/** Post Condition: Happiness is increased and health is increased slightly as well
	*		 			food is decreased slightly... playing burns calories!
	*/
	public void playWithPet()
	{
		if (notDead == true)
		{
			happiness += (int) (Math.random() * 5) + 1;
			health += (int) (Math.random() * 2) + 1;
			food -= (int) (Math.random() * 2) + 1;
		}
	}

	/** Post Condition: Health is increased; Happiness is decreased
	*					food is decreased
	*/
	public void takeToVet()
	{
		if (notDead == true)
		{
			health += (int) (Math.random() * 5) + 1;
			happiness -= (int) (Math.random() * 4) + 1;
			food -= (int) (Math.random() * 3) + 1;
		}
	}

	/** Post Condition: Health is increased and happiness slightly as well
	* 		 food is slightly decreased
	*/
	public void sleep()
	{
		if (notDead == true)
		{
			health += (int) (Math.random() * 7) + 1;
			happiness += (int) (Math.random() * 4) + 1;
			food -= (int) (Math.random() * 3) + 1;
		}
	}

	/** Everything that should happen in any given time interval
	*	each category should be affected in some way
	*/
	public void takeStep()
	{
		if(notDead == true)
		{
			age += .3;
			health -= age;
			happiness -= age;
			food--;
		}
	}

	/** @return the appropriate ImageIcon based on the current state of this pet
	*/
	public ImageIcon getIcon()
	{
		if(food < 0 && health < 0 && happiness < 0)
		{
			notDead = false;
			return icoDead;
		}
		else if(happiness < 0 && notDead == true)
		{
			return icoSad;
		}
		else if(food < 0 && notDead == true)
		{
			return icoHungry;
		}
		else if(health < 0 && notDead == true)
		{
			return icoUnhealthy;
		}
		else
		{
			return icoHappy;
		}
	}

	/** @return a String representing the current state of this VirtualPet
	*	Label each category and show the current value for each
	*/
	public String toString()
	{
		String result = "";

		if(!notDead)
		{
			result += "Wow. Good Job, you killed him.";
		}
		else
		{
			result += "age: " + (int)age + " happiness " + happiness + " health " + health + " food " + food;
		}

		return result;
	}
}
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// Sammy Samkough
// Virtual Pet Applet
// Spec: An applet front-end for a VirtualPet
//		 Utilizes a Timer with it's own ActionListener
//		 and another ActionListener for the buttons.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class VirtualPetApplet extends JApplet
{
	private VirtualPet spot;
	private Timer tmr;
	private TimerListener tmrListener;
	private ButtonListener btnListener;
	private JButton btnWalk, btnFeed, btnPlay, btnVet, btnSleep;
	private JLabel lblPet, lblStats;

	public void init()
	{
		Container cp = getContentPane();
		Frame c = (Frame)this.getParent().getParent();
		cp.setLayout(new FlowLayout());

		tmrListener = new TimerListener();
		btnListener = new ButtonListener();

		spot = new VirtualPet();
		tmr = new Timer(5000, tmrListener);
		tmr.start();

		btnWalk = new JButton("Walk");
		btnFeed = new JButton("Feed");
		btnPlay = new JButton("Play");
		btnVet = new JButton("Vet");
		btnSleep = new JButton("Sleep");
		lblPet = new JLabel(spot.getIcon());
		lblStats = new JLabel("");

		btnWalk.addActionListener(btnListener);
		btnFeed.addActionListener(btnListener);
		btnPlay.addActionListener(btnListener);
		btnVet.addActionListener(btnListener);
		btnSleep.addActionListener(btnListener);

		cp.add(lblPet);
		cp.add(lblStats);
		cp.add(btnWalk);
		cp.add(btnFeed);
		cp.add(btnPlay);
		cp.add(btnVet);
		cp.add(btnSleep);

		lblStats.setText(spot.toString());

		c.setTitle("Virtual Pet");
		setSize(900, 450);
		setVisible(true);
	}

	private class TimerListener implements ActionListener
	{
		public void actionPerformed(ActionEvent event)
		{
			// This will happen at every timer interval as specified above
			// At each interval our pet (spot) should:
			//		- Take a step
			//		- Update the stats in lblStats
			//		- Update the icon in lblPet
			spot.takeStep();
			lblStats.setText(spot.toString());
			lblPet.setIcon(spot.getIcon());
 		}
	}

	private class ButtonListener implements ActionListener
	{
		public void actionPerformed(ActionEvent event)
		{
			Object source = event.getSource();

			// Build an extended-if to account for each of the other buttons in your interface
			if(source == btnWalk)
			{
				spot.walkPet();
			}
			else if(source == btnFeed)
			{
				spot.feedPet();
			}
			else if(source == btnPlay)
			{
				spot.playWithPet();
			}
			else if(source == btnVet)
			{
				spot.takeToVet();
			}
			else if(source == btnSleep)
			{
				spot.sleep();
			}

			// Update the screen for each click:
			//		- Update the stats in lblStats
			//		- Update the icon in lblPet
			lblStats.setText(spot.toString());
			lblPet.setIcon(spot.getIcon());
		}
	}
}