[Source] A cool little applet game - Everything is commented!

crapkiller · Apr 4, 2008

Here is my game. First, lets go through running it. I will include the .class so you don't need to compile. (Bottom of post) Download the .class. In the same folder as the .class, create a new text document. In that doccument, type this:

Code:

<html>

<body>

<applet code = dotAttack width = 501 height = 501></applet>

</body>

</html>

Now save this as dotAttack.html

Now double click on the file that you just created (dotAttack.html)

What this does is it creates a very simple webpage with our applet imbedded. Now most modern day browsers support java applets. This will run our applet and make it the right size so everything works right.

It is a simple game where a little dot chases your mouse, just try to run away from it without letting it hit the walls. (if it hits the walls, you lose!) It has 3 difficulty levels, easy, medium, and hard. It also has a point system.

Now onto the source!

Code:

import java.awt.*; // A few imports
import java.awt.event.*;
import java.applet.*;

public class dotAttack extends Applet implements MouseMotionListener, ActionListener{  // Make our class an Applet and let it use MouseMotionListener and ActionListener

	private Thread t = new Thread(); // a declaration for timing

	private static Button easyBut; //easy medium and hard button declarations
	private static Button medBut;
	private static Button hardBut;

	private int speed = 10; // the speed our dot moves

	private int ourX; // our current X and Y coordinate
	private int ourY;

	private int enemyX = 50; // the dot's current X and Y coordinate
	private int enemyY = 50;

	private int points = 0; // the amount of points we have

	public void actionPerformed(ActionEvent evt){ // when ever we click a button, this function is triggered
		if(evt.getSource() == easyBut) // if we click the easy button make the dot move slow speed
			speed = 15;

		if(evt.getSource() == medBut) // if we click the medium button make the dot move medium speed
			speed = 10;

		if(evt.getSource() == hardBut) // if we click the hard button make the dot move fast
			speed = 5;
//NOTE: putting this on hard earns points faster than on easy.
	}

	public void init(){

		addMouseMotionListener(this); //Make our applet check for movement of the mouse

		t.start(); // starting our timer

		easyBut = new Button("Easy"); //telling the easy, medium, and hard buttons what the captions should be
		medBut = new Button("Medium");
		hardBut = new Button("Hard");

		easyBut.addActionListener(this); // make the buttons wait to be clicked annd when they are cklicked, trigger the actionPerformed function
		medBut.addActionListener(this);
		hardBut.addActionListener(this);

		add(easyBut); //add the buttons to our form
		add(medBut);
		add(hardBut);
	}

	public void mouseMoved(MouseEvent e){ // when our applet senses mouse movement it triggers this function
		ourX = e.getX(); //storing the current X value of the mouse into a variable
		ourY = e.getY(); //storing the current Y value of the mouse into a variable
	}

	public void mouseDragged(MouseEvent e){ //when our applet senses the mouse being clicked and then dragged
		ourX = e.getX(); // storing the current X value of the mouse into a variable
		ourY = e.getY(); // storing the current Y value of the mouse into a variable
	}

	public void paint (Graphics g){//this is a standard function on most applets

		g.drawLine(0, 0, 500, 0); // drawing lines around the edges of the applet so we can try to avoid letting the dot hit the wall
		g.drawLine(500, 0, 500, 500);
		g.drawLine(500, 500, 0, 500);
		g.drawLine(0, 500, 0, 0);

		g.drawRect(enemyX, enemyY, 2, 2); //drawing and filling the dot that chases us
		g.fillRect(enemyX, enemyY, 2, 2);

		g.drawString(points + " Points", 20, 60); //draw out points

		try{ //try whats in the curly braces
			t.sleep(speed); //wait for either 5, 10, or 15 milliseconds (Depends on difficulty level)
		} catch(InterruptedException ex){ //for some reason, we get an exception with the above line, this fixes the problem

		}
		touch(g); // a function i made that checks to see if our mouse is touching the dot
		whichDir(); // check to see which direction to move the dot so that it follows the mouse
		points++; // give us 1 point :D NOTE: this line is the same as 'points = points + 1;' Just shorter
	}

	public void whichDir(){ // our function that checks to see which way we should move the dot to follow the mouse
		if(ourX > enemyX) // if our mouse's X coord is higher than the enemy's, than move the enemy 1 spot closer in that direction
			enemyX++;

		if(ourX < enemyX) // if our mouse's X coord is lower than the enemy's, than move the enemy 1 spot closer in that direction
			enemyX--;

		if(ourY > enemyY) //if our mouse's Y coord is higher than the enemy's, than move the enemy 1 spot closer in that direction
			enemyY++;

		if(ourY < enemyY)//if our mouse's Y coord is lower than the enemy's, than move the enemy 1 spot closer in that direction
			enemyY--;

		repaint(); // trigger the paint function again(See how it is an endless loop?)

	}

	public void touch(Graphics g){ //our function to check if out mouse and the dot are touching
		if(ourX == enemyX && ourY == enemyY){ // if our x coord is the same as the enemy's and our Y coord is the same as the enemy's then do the stuff in the curly braces
			g.drawString("You Lost!", 50, 40); // draw on our applet that we lost
			this.showStatus("You Lost!"); // in firefox, in the lower left corner it says you lost
			points = 0; // reset our points back to 0
			try{ // same as the paint method
				t.sleep(5000); // wait 5 second for the player to get ready to start again
			} catch(InterruptedException ex){

			}
		}

	}

}

Keep in mind i am also learning so if i did something wrong please do tell. Other wise,

Enjoy!

.Class:
http://www.mediafire.com/?id1yi1ymwlt

the pawesome owner · May 17, 2008

interesting....... Just downloaded it. Nice job, but what does it do.............

xxavixx · Jun 5, 2008

nice!

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[Source] A cool little applet game - Everything is commented!

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[Source] A cool little applet game - Everything is commented!

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