java实现Flappy Bird游戏源代码

/*
2017/7/23
*/
 
import java.awt.Graphics;
//import java.util.Timer;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
import java.awt.event.KeyListener;
import java.awt.event.KeyEvent;
import java.awt.Rectangle;
import java.awt.*;
 
import java.util.*;
 
import javax.swing.JFrame;
import javax.swing.Timer;
import javax.swing.*;
 
 
import javax.swing.JPanel;
 
class Renderer extends JPanel
{
 
 private static final long serialVersionUID = 1L;
 
 protected void paintComponent(Graphics g)
 {
 super.paintComponent(g);
 
 FlappyBird.flappyBird.repaint(g);
 }
 
}
public class FlappyBird implements ActionListener, MouseListener, KeyListener
{
 public static FlappyBird flappyBird;
 
 public final int WIDTH = 900, HEIGHT = 800;
 
 public Renderer renderer;
 
 public Rectangle bird;
 
 public ArrayList<Rectangle> columns; 
 
 public int ticks, yMotion, score;
 
 public boolean gameOver, started;
 
 public Random rand;
 
 public FlappyBird()
 {
 JFrame jframe = new JFrame();
 Timer timer = new Timer(20,this);
 
 renderer = new Renderer();
 rand = new Random();
 
 jframe.add(renderer);
 jframe.setTitle("Flappy Bird");
 jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 jframe.setSize(WIDTH,HEIGHT);
 jframe.addMouseListener(this);
 jframe.addKeyListener(this);
 jframe.setResizable(false);
 jframe.setVisible(true);
 
 bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
 
 columns = new ArrayList<Rectangle>();
 
 addColumn(true);
 addColumn(true);
 addColumn(true);
 addColumn(true);
 
 timer.start();
 }
 
 public void addColumn(boolean start)
 {
 int space = 300;
 int width = 100;
 int height = 50 + rand.nextInt(300);
 
 if(start)
 {
 columns.add(new Rectangle(WIDTH + width + columns.size() * 300, HEIGHT - height - 120, width, height));
 columns.add(new Rectangle(WIDTH + width + (columns.size()-1)*300, 0, width, HEIGHT - height - space));
 }
 else
 {
 columns.add(new Rectangle(columns.get(columns.size() - 1).x + 600, HEIGHT - height - 120, width, height));
 columns.add(new Rectangle(columns.get(columns.size() - 1).x , 0, width, HEIGHT - height - space));
 }
 
 }
 
 public void paintColumn(Graphics g, Rectangle column)
 {
 g.setColor(Color.green.darker());
 g.fillRect(column.x, column.y, column.width, column.height);
 }
 
 public void jump()
 {
 if (gameOver)
 {
 bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
 
 columns.clear();
 
 yMotion = 0;
 score = 0;
 
 addColumn(true);
 addColumn(true);
 addColumn(true);
 addColumn(true);
 
 gameOver = false;
 }
 
 if(!started)
 {
 started = true;
 }
 else if(!gameOver)
 {
 if(yMotion > 0)
 {
 yMotion = 0;
 }
 
 yMotion -= 10;
 }
 }
 
 public void actionPerformed(ActionEvent e)
 {
 
 int speed = 10;
 
 ticks++;
 
 if(started )
 {
 for( int i = 0; i < columns.size(); i++)
 {
 Rectangle column = columns.get(i);
 
 column.x -= speed;
 }
 
 if(ticks % 2 ==0 && yMotion < 15)
 {
 yMotion += 2;
 }
 
 for (int i = 0; i < columns.size(); i++)
 {
 Rectangle column = columns.get(i);
 
 if (column.x + column.width < 0)
 {
  columns.remove(column);
  if(column.y ==0)
  {
  addColumn(false);
  }
 }
 }
 
 bird.y += yMotion;
 
 for(Rectangle column : columns)
 {
 if(bird.x + bird.width / 2 > column.x + column.width / 2 - 5 
 && bird.x + bird.width / 2 < column.x + column.width / 2 + 5
 && column.y == 0)
 {
  score++;
 } 
 
 if(column.intersects(bird))
 {
  gameOver = true;
 
  if(bird.x <= column.x)
  {
  bird.x = column.x - bird.width;
  }
  else
  {
  if(column.y != 0)
  {
  bird.y = column.y - bird.height;
  }
  else if(bird.y < column.height)
  {
  bird.y = column.height;
  }
  }
 } 
 }
 
 if(bird.y > HEIGHT - 120 || bird.y < 0 )
 {
 gameOver = true;
 }
 
 if(bird.y + yMotion >= HEIGHT -120)//(gameOver)
 {
 bird.y = HEIGHT -120 - bird.height;
 }
 }
 renderer.repaint();
 }
 
 public void repaint(Graphics g)
 {
 //System.out.println("hello");
 g.setColor(Color.cyan);
 g.fillRect(0,0,WIDTH,HEIGHT);
 
 g.setColor(Color.orange);
 g.fillRect(0, HEIGHT - 120, WIDTH, 150);
 
 g.setColor(Color.green);
 g.fillRect(0, HEIGHT - 120, WIDTH, 20);
 
 g.setColor(Color.red);
 g.fillRect(bird.x, bird.y, bird.width, bird.height);
 
 for ( Rectangle column : columns )
 {
 paintColumn(g,column);
 }
 
 g.setColor(Color.white);
 g.setFont(new Font("Arial",1,70));
 
 if(!started)
 {
 g.drawString("Click to start!",90,HEIGHT / 2-50);
 }
 
 if(gameOver)
 {
 g.drawString("Game Over! You suck!",40,HEIGHT / 2-50);
 }
 
 if(!gameOver && started)
 {
 g.drawString(String.valueOf(score), WIDTH / 2, 100);
 }
 }
 
 public static void main(String[]args)
 {
 flappyBird = new FlappyBird();
 }
 
 public void mouseClicked(MouseEvent e)
 {
 jump();
 }
 public void mousePressed(MouseEvent e){}
 public void mouseReleased(MouseEvent e){}
 public void mouseEntered(MouseEvent e){}
 public void mouseExited(MouseEvent e){}
 
 public void keyPressed(KeyEvent e){}
 public void keyTyped(KeyEvent e){}
 public void keyReleased(KeyEvent e)
 {
 if(e.getKeyCode() == KeyEvent.VK_SPACE)
 {
 jump();
 }
 }
 
}