└── flappyBird
    ├── Renderer.java
    └── FlappyBird.java


/flappyBird/Renderer.java:
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 1 | package flappyBird;
 2 | 
 3 | import java.awt.Graphics;
 4 | 
 5 | import javax.swing.JPanel;
 6 | 
 7 | public class Renderer extends JPanel
 8 | {
 9 | 
10 | 	private static final long serialVersionUID = 1L;
11 | 
12 | 	@Override
13 | 	protected void paintComponent(Graphics g)
14 | 	{
15 | 		super.paintComponent(g);
16 | 
17 | 		FlappyBird.flappyBird.repaint(g);
18 | 	}
19 | 	
20 | }
21 | 


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/flappyBird/FlappyBird.java:
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  1 | package flappyBird;
  2 | 
  3 | import java.awt.Color;
  4 | import java.awt.Font;
  5 | import java.awt.Graphics;
  6 | import java.awt.Rectangle;
  7 | import java.awt.event.ActionEvent;
  8 | import java.awt.event.ActionListener;
  9 | import java.awt.event.KeyEvent;
 10 | import java.awt.event.KeyListener;
 11 | import java.awt.event.MouseEvent;
 12 | import java.awt.event.MouseListener;
 13 | import java.util.ArrayList;
 14 | import java.util.Random;
 15 | 
 16 | import javax.swing.JFrame;
 17 | import javax.swing.Timer;
 18 | 
 19 | public class FlappyBird implements ActionListener, MouseListener, KeyListener
 20 | {
 21 | 
 22 | 	public static FlappyBird flappyBird;
 23 | 
 24 | 	public final int WIDTH = 800, HEIGHT = 800;
 25 | 
 26 | 	public Renderer renderer;
 27 | 
 28 | 	public Rectangle bird;
 29 | 
 30 | 	public ArrayList<Rectangle> columns;
 31 | 
 32 | 	public int ticks, yMotion, score;
 33 | 
 34 | 	public boolean gameOver, started;
 35 | 
 36 | 	public Random rand;
 37 | 
 38 | 	public FlappyBird()
 39 | 	{
 40 | 		JFrame jframe = new JFrame();
 41 | 		Timer timer = new Timer(20, this);
 42 | 
 43 | 		renderer = new Renderer();
 44 | 		rand = new Random();
 45 | 
 46 | 		jframe.add(renderer);
 47 | 		jframe.setTitle("Flappy Bird");
 48 | 		jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 49 | 		jframe.setSize(WIDTH, HEIGHT);
 50 | 		jframe.addMouseListener(this);
 51 | 		jframe.addKeyListener(this);
 52 | 		jframe.setResizable(false);
 53 | 		jframe.setVisible(true);
 54 | 
 55 | 		bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
 56 | 		columns = new ArrayList<Rectangle>();
 57 | 
 58 | 		addColumn(true);
 59 | 		addColumn(true);
 60 | 		addColumn(true);
 61 | 		addColumn(true);
 62 | 
 63 | 		timer.start();
 64 | 	}
 65 | 
 66 | 	public void addColumn(boolean start)
 67 | 	{
 68 | 		int space = 300;
 69 | 		int width = 100;
 70 | 		int height = 50 + rand.nextInt(300);
 71 | 
 72 | 		if (start)
 73 | 		{
 74 | 			columns.add(new Rectangle(WIDTH + width + columns.size() * 300, HEIGHT - height - 120, width, height));
 75 | 			columns.add(new Rectangle(WIDTH + width + (columns.size() - 1) * 300, 0, width, HEIGHT - height - space));
 76 | 		}
 77 | 		else
 78 | 		{
 79 | 			columns.add(new Rectangle(columns.get(columns.size() - 1).x + 600, HEIGHT - height - 120, width, height));
 80 | 			columns.add(new Rectangle(columns.get(columns.size() - 1).x, 0, width, HEIGHT - height - space));
 81 | 		}
 82 | 	}
 83 | 
 84 | 	public void paintColumn(Graphics g, Rectangle column)
 85 | 	{
 86 | 		g.setColor(Color.green.darker());
 87 | 		g.fillRect(column.x, column.y, column.width, column.height);
 88 | 	}
 89 | 
 90 | 	public void jump()
 91 | 	{
 92 | 		if (gameOver)
 93 | 		{
 94 | 			bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
 95 | 			columns.clear();
 96 | 			yMotion = 0;
 97 | 			score = 0;
 98 | 
 99 | 			addColumn(true);
100 | 			addColumn(true);
101 | 			addColumn(true);
102 | 			addColumn(true);
103 | 
104 | 			gameOver = false;
105 | 		}
106 | 
107 | 		if (!started)
108 | 		{
109 | 			started = true;
110 | 		}
111 | 		else if (!gameOver)
112 | 		{
113 | 			if (yMotion > 0)
114 | 			{
115 | 				yMotion = 0;
116 | 			}
117 | 
118 | 			yMotion -= 10;
119 | 		}
120 | 	}
121 | 
122 | 	@Override
123 | 	public void actionPerformed(ActionEvent e)
124 | 	{
125 | 		int speed = 10;
126 | 
127 | 		ticks++;
128 | 
129 | 		if (started)
130 | 		{
131 | 			for (int i = 0; i < columns.size(); i++)
132 | 			{
133 | 				Rectangle column = columns.get(i);
134 | 
135 | 				column.x -= speed;
136 | 			}
137 | 
138 | 			if (ticks % 2 == 0 && yMotion < 15)
139 | 			{
140 | 				yMotion += 2;
141 | 			}
142 | 
143 | 			for (int i = 0; i < columns.size(); i++)
144 | 			{
145 | 				Rectangle column = columns.get(i);
146 | 
147 | 				if (column.x + column.width < 0)
148 | 				{
149 | 					columns.remove(column);
150 | 
151 | 					if (column.y == 0)
152 | 					{
153 | 						addColumn(false);
154 | 					}
155 | 				}
156 | 			}
157 | 
158 | 			bird.y += yMotion;
159 | 
160 | 			for (Rectangle column : columns)
161 | 			{
162 | 				if (column.y == 0 && bird.x + bird.width / 2 > column.x + column.width / 2 - 10 && bird.x + bird.width / 2 < column.x + column.width / 2 + 10)
163 | 				{
164 | 					score++;
165 | 				}
166 | 
167 | 				if (column.intersects(bird))
168 | 				{
169 | 					gameOver = true;
170 | 
171 | 					if (bird.x <= column.x)
172 | 					{
173 | 						bird.x = column.x - bird.width;
174 | 
175 | 					}
176 | 					else
177 | 					{
178 | 						if (column.y != 0)
179 | 						{
180 | 							bird.y = column.y - bird.height;
181 | 						}
182 | 						else if (bird.y < column.height)
183 | 						{
184 | 							bird.y = column.height;
185 | 						}
186 | 					}
187 | 				}
188 | 			}
189 | 
190 | 			if (bird.y > HEIGHT - 120 || bird.y < 0)
191 | 			{
192 | 				gameOver = true;
193 | 			}
194 | 
195 | 			if (bird.y + yMotion >= HEIGHT - 120)
196 | 			{
197 | 				bird.y = HEIGHT - 120 - bird.height;
198 | 				gameOver = true;
199 | 			}
200 | 		}
201 | 
202 | 		renderer.repaint();
203 | 	}
204 | 
205 | 	public void repaint(Graphics g)
206 | 	{
207 | 		g.setColor(Color.cyan);
208 | 		g.fillRect(0, 0, WIDTH, HEIGHT);
209 | 
210 | 		g.setColor(Color.orange);
211 | 		g.fillRect(0, HEIGHT - 120, WIDTH, 120);
212 | 
213 | 		g.setColor(Color.green);
214 | 		g.fillRect(0, HEIGHT - 120, WIDTH, 20);
215 | 
216 | 		g.setColor(Color.red);
217 | 		g.fillRect(bird.x, bird.y, bird.width, bird.height);
218 | 
219 | 		for (Rectangle column : columns)
220 | 		{
221 | 			paintColumn(g, column);
222 | 		}
223 | 
224 | 		g.setColor(Color.white);
225 | 		g.setFont(new Font("Arial", 1, 100));
226 | 
227 | 		if (!started)
228 | 		{
229 | 			g.drawString("Click to start!", 75, HEIGHT / 2 - 50);
230 | 		}
231 | 
232 | 		if (gameOver)
233 | 		{
234 | 			g.drawString("Game Over!", 100, HEIGHT / 2 - 50);
235 | 		}
236 | 
237 | 		if (!gameOver && started)
238 | 		{
239 | 			g.drawString(String.valueOf(score), WIDTH / 2 - 25, 100);
240 | 		}
241 | 	}
242 | 
243 | 	public static void main(String[] args)
244 | 	{
245 | 		flappyBird = new FlappyBird();
246 | 	}
247 | 
248 | 	@Override
249 | 	public void mouseClicked(MouseEvent e)
250 | 	{
251 | 		jump();
252 | 	}
253 | 
254 | 	@Override
255 | 	public void keyReleased(KeyEvent e)
256 | 	{
257 | 		if (e.getKeyCode() == KeyEvent.VK_SPACE)
258 | 		{
259 | 			jump();
260 | 		}
261 | 	}
262 | 	
263 | 	@Override
264 | 	public void mousePressed(MouseEvent e)
265 | 	{
266 | 	}
267 | 
268 | 	@Override
269 | 	public void mouseReleased(MouseEvent e)
270 | 	{
271 | 	}
272 | 
273 | 	@Override
274 | 	public void mouseEntered(MouseEvent e)
275 | 	{
276 | 	}
277 | 
278 | 	@Override
279 | 	public void mouseExited(MouseEvent e)
280 | 	{
281 | 	}
282 | 
283 | 	@Override
284 | 	public void keyTyped(KeyEvent e)
285 | 	{
286 | 
287 | 	}
288 | 
289 | 	@Override
290 | 	public void keyPressed(KeyEvent e)
291 | 	{
292 | 
293 | 	}
294 | 
295 | }
296 | 


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