BirdMan

package crappyBird;

import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;

import javax.imageio.ImageIO;
import javax.swing.Timer;


public class BirdMan {

	static int DIAMETER = 25;									//Diameter of the bird
	static int X = ( Game.WIDTH / 2 ) - ( DIAMETER / 2 );		//The x position of the bird. Does not change at any time. Should be exactly centered  
	static int y =  Game.HEIGHT / 2;							//The STARTING y position of the bird. Will change constantly
	static int acceleration = 1;								//Used in the gravity simulation below
	static int speed = 2;										//The speed at which the bird will fall (constantly increased by acceleration (1) )
	
	//Fetching bird.png from Imgur where it's hosted (not ideal, slower loading times)
	static BufferedImage img = null;{
		try {
			img = ImageIO.read(new URL("http://i.imgur.com/mw0ai3K.png"));
		} catch (IOException e) {
			System.out.println("WRONG BIRD");	//Prints "WRONG BIRD" if there is an error retrieving the image
		}}
	
	public BirdMan(){
		//just the constructor, nothing to see here
	}
	
	//This is called when the bird jumps (on mouse click). It just temporarily sets the speed to -17 (arbitrary number), then is slowly taken back down because 
	//of "gravity"
	public void jump(){
		speed = - 17;			
	}
	
	//all movement stuff is here 
	public static void move(){
	
		//only moves if the bird is between the top and bottom of the window
		if ( ( y > 0 ) && ( y < Game.HEIGHT )) {
			speed += acceleration;								//Here's the gravity I was talking about the speed is just increased by 1 all the time, even after a jump
			y += speed;											//The actual movement, y location equals (where it was) + (how far it should go)
		}
		//or else the game resets (Bird is dead!)
		else {
			reset();											//rests bird's postion, actual method below
			Game.dead = true;									//bird is dead! This is used in the Main method to reset the walls after a death
		}
		
	}
	
	public static void reset(){									//called after the bird dies
		y = Game.HEIGHT / 2;									//resets position, speed, etc.
		speed = 2;
		Game.score = 0;
		
		Game.deathMessage = "you died, try again";				//also shows this lovely message
		
		//This timer just makes the message dissapear after 3000 milliseconds
		Timer deathTimer = new Timer(3000, new ActionListener(){
			  public void actionPerformed(ActionEvent event){
				Game.deathMessage = "";
			 };
		});
		
		deathTimer.start();
	}
	
	public static void paint(Graphics g){	
		g.drawImage(img, X, y, null);							//paints the bird's icon
	}
	
	public static Rectangle getBounds(){
		 return new Rectangle(X, y, DIAMETER, DIAMETER);		//Gives a rectangle used to detect collisions in the Wall class
		}

	
}

Game

package crappyBird;

import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JPanel;

@SuppressWarnings("serial")
public class Game extends JPanel{
	
	static int HEIGHT = 800;						//height of the window
	static int WIDTH = 600;							//width of the window
	BirdMan birdy = new BirdMan();					//makes a new bird 
	Wall wall = new Wall(WIDTH);					//makes the first wall you see
	Wall wall2 = new Wall(WIDTH + (WIDTH / 2));		//makes the second wall you see
	static int score = 0;							//the score (how many walls you've passed)
	int scrollX = 0;								//scrolls the background
	static boolean dead = false;					//used to reset the walls
	static String deathMessage = "" ; 				// "you died, try again";
	
	//grabs the background from Imgur
	BufferedImage img = null;{
	try {
		img = ImageIO.read(new URL("http://i.imgur.com/cXaR0vS.png"));
	} catch (IOException e) {
		System.out.println("WRONG BACKGROUND");		//prints "WRONG BACKGROUND" if there is an issue obtaining the background
	}}
	
	
	public Game(){
		
		//this mouseAdapter just listens for clicks, whereupon it then tells the bird to jump 
		this.addMouseListener(new MouseAdapter(){

			public void mousePressed(MouseEvent arg0) {
				birdy.jump();
			}
		
		});	
		
	}

	@SuppressWarnings("static-access")
	public void paint(Graphics g){
		super.paint(g);
		
		g.drawImage(img, scrollX, 0, null);					//there are two backgrounds so you get that seamless transition, this is the first			
		g.drawImage(img, scrollX + 1800, 0, null);			//number 2, exactly one background length away (1800 pixels)
		
		wall.paint(g);			//paints the first wall
		wall2.paint(g);			//the second wall
 		birdy.paint(g);			//the wee little birdy
 	
 		g.setFont(new Font("comicsans", Font.BOLD, 40));
 		g.drawString("" + score, WIDTH / 2 - 20, 700);
 		g.drawString(deathMessage, 200, 200);				//paints "" if the player has not just died, paints "you died, try again" if the user just died
	}
	
	@SuppressWarnings("static-access")
	public void move(){

		wall.move();			//moves the first wall
		wall2.move();			//moves the second wall
		birdy.move();			//moves the wee little birdy
	
		scrollX += Wall.speed;	//scrolls the wee little background
		
		if (scrollX == -1800)	//this loops the background around after it's done
			scrollX = 0;
		
		if (dead){				//this block essentially pushes the walls back 600 pixels on birdy death
			wall.x = 600;
			wall2.x = 600 + (WIDTH / 2);
			dead = false;
		}
		
		if ( (wall.x == BirdMan.X) || (wall2.x == BirdMan.X) ) 	//Increments the score when the player passes a wall
			score();
	}
	
	public static void score(){
		score += 1;
	}
	
}

Main

package crappyBird;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.Timer;


	public class Main {

		static JFrame frame = new JFrame();		
	public static void main (String [] args) throws InterruptedException{
		
		frame.setSize(Game.WIDTH, Game.HEIGHT);					//declares the JFrame (window) that all of this is housed in
		frame.setVisible(true);									//you have to be able to see the JFrame
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);	//Honestly don't know what this does, but it has to be here.
		frame.setLocationRelativeTo(null);						//sets the window up in the middle of the screen
		
		runnit();	// /r/running shoutout, also begins running the method below
		
	}

	public static void runnit() throws InterruptedException{
		
		final Menu menu = new Menu();							//the menu used in each instance
		final Game game = new Game();							//the game used in each instance
		
		
		Timer animationTimer = new Timer(20, new ActionListener(){		//animation timer for the game, repaints the bird, walls, and background every 20 milliseconds
			  public void actionPerformed(ActionEvent event){
				 game.repaint();
				 game.move();
			 };
		});
		
		frame.add(menu);							//adds the menu (Step 1)
		menu.setVisible(true);						
		frame.revalidate();							//makes sure the menu is displayed (Step 1.5)
		frame.repaint();
		
		while (menu.startGame == false){			//waits until the mouse is clicked in the Menu
			Thread.sleep(10);
		}
		
				
		frame.remove(menu);							//Removes menu when mouse is clicked(Step 2)
		frame.add(game);							//adds the game in its place (Step 3)
		game.setVisible(true);						//makes sure the game is displayed (Step 3.5)
		frame.revalidate();

		animationTimer.start();						//begins animation timer, and the game begins
		
	
}

}

Menu

package crappyBird;

import java.awt.Graphics;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;

/*
 * This screen just waits for a mouseclick, whereupon it is removed from the JFrame and replaced with the game
 * I'd like not have to wait for the picture to download though, so I need to figure out how to package the images
 * within the Jar file. 
 */

public class Menu extends JPanel{
	private static final long serialVersionUID = 1L;
	int highscore;
	
	//gets the background from imgur
	static BufferedImage img = null;{
		try {
			img = ImageIO.read(new URL("http://i.imgur.com/U6KEwxe.png"));
		} catch (IOException e) {
			System.out.println("WRONG MENU");
		}}
	
	boolean startGame = false;						//the boolean toggle that starts the game over in ExecuteMe
	
	
	public Menu(){
		setFocusable(true);							//waits for a mouseclick, then toggles startGame
		addMouseListener(new MouseAdapter(){
			@Override
			public void mouseClicked(MouseEvent e) {
				startGame = true;
			}

			});
	}
	
	public void paint (Graphics g){
		super.paint(g);
	
		g.drawImage(img, 0, 0, null);				//paints background
	
		
	}
}
	

Wall

package crappyBird;

import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.util.Random;
import javax.imageio.ImageIO;

/* Here's how this works:
 * 
 * 	||		||			||		||
 *	|| 		||	 -->  	||		||		--REPEAT-->
 * 	||		||			||		||
 * wall	   wall2	   wall2   wall(loops back around at a different height)
 * 
 */

public class Wall {

	Random rnd = new Random();						//used to generate a random height for dat gap
		
	int x ;											//the x position of the wall, always changing (right to left)
	int y = rnd.nextInt(Game.HEIGHT - 400) + 200;	//generates the y value that is the top of the bottom wall
	static int speed = - 6;							//scrolling speed
	int WIDTH = 45;									//width of a wall, it's a constant 
	int height = Game.HEIGHT - y;					//height of the wall, just the height of the window - how high the wall is
	int GAP = 200;									//gap size (also a constant)
	
	//procures the Wall image from Imgur
	static BufferedImage img = null;{
		try {
			img = ImageIO.read(new URL("http://i.imgur.com/4SUsUuc.png"));
					
		} catch (IOException e) {
			System.out.println("WRONG WALL");		//prints "WRONG WALL" if there's trouble with Imgur
		}}
	
	public Wall(int i){								//allows me to differentiate the x positions of the two walls
		this.x = i;
	}
	
	//draws the wall
	public void paint(Graphics g){
		g.drawImage(img, x, y, null);								//top part 
		g.drawImage(img, x, ( -Game.HEIGHT ) + ( y - GAP), null);	//bottom part
	}
	
	public void move(){
		
			x += speed;								//scrolls the wall
	
		//These Rectanlges are used to detect collisions
		Rectangle wallBounds = new Rectangle(x, y, WIDTH, height);
		Rectangle wallBoundsTop = new Rectangle(x, 0, WIDTH, Game.HEIGHT - (height + GAP));
		
		//If birdman collids with a wall, he dies and  the game, bird, and walls are all reset
		if ( (wallBounds.intersects(BirdMan.getBounds()) ) || (wallBoundsTop.intersects(BirdMan.getBounds()))){
			BirdMan.reset();
			died();
		}
			
		//pushes the wall back to just off screen on the right when it gets offscreen on the left (the loop)
		if (x <= 0 - WIDTH){
			x = Game.WIDTH;
			y = rnd.nextInt(Game.HEIGHT - 400) + 200;
			height = Game.HEIGHT - y;
		}		
	}
	

	//this is executed on death, just sets a random y value and tells Game that the bird died :(
	public void died(){
			y = rnd.nextInt(Game.HEIGHT - 400) + 200;
			height = Game.HEIGHT - y;
			Game.dead = true;
	}
}