01.package test;
02.
03.import java.awt.*;
04.import java.awt.event.*;
05.
06.import javax.swing.Timer;
07.import java.util.Random;
08.
09.
10.public class PinBang {
11. //define table size
12. private final int TABLE_WIDTH=300;
13. private final int TABLE_HEIGHT=400;
14. //define ball size
15. private final int BALL_SIZE=16;
16. //define packet size
17. private final int PACKET_WIDTH=60;
18. private final int PACKET_HEIGHT=20;
19. //define packet vertical position
20. private final int PACKET_Y=340;
21.
22. Random rand=new Random();
23.
24. //vertical speed
25. private int ySpeed=10;
26. // create an rate
27. private double rate=rand.nextDouble()-0.5;
28. //calculate horizontal speed
29. private int xSpeed=(int)(ySpeed*rate*2);
30. //ball position
31. private int ballX=rand.nextInt(200)+20;
32. private int ballY=rand.nextInt(10)+20;
33. //packet position
34. private int packetX=rand.nextInt(200)+20;
35. // is Game Over?
36. private boolean isLose=false;
37. // Frame
38. private Frame f=new Frame("PinBang");
39. //Canvas
40. private Canva c=new Canva();
41. //Timer
42. private Timer timer;
43. //restart
44. private Button btnRestart=new Button("Restart");
45. class Canva extends Canvas
46. {
47. /**
48. *
49. */
50. private static final long serialVersionUID = 1L;
51.
52. @Override
53. public void paint(Graphics g) {
54. // TODO Auto-generated method stub
55. if(isLose==true)
56. {
57. g.setColor(new Color(255,0,0));
58. g.setFont(new Font("TIMES",Font.BOLD,30));
59. g.drawString("Game Over", 50, 200);
60. restartGame();
61. }
62. else
63. {
64. g.setColor(new Color(240,240,80));
65. g.fillOval(ballX, ballY, BALL_SIZE, BALL_SIZE);
66. g.setColor(new Color(80,80,200));
67. g.fillRect(packetX, PACKET_Y, PACKET_WIDTH, PACKET_HEIGHT);
68. }
69. }
70. }
71.
72. public void iniGame()
73. {
74. c.setPreferredSize(new Dimension(TABLE_WIDTH,TABLE_HEIGHT));
75. f.add(c);
76.
77. KeyAdapter keyProcessor=new KeyAdapter() {
78. @Override
79. public void keyPressed(KeyEvent e) {
80. // TODO Auto-generated method stub
81. //super.keyPressed(e);
82. if(e.getKeyCode()==KeyEvent.VK_LEFT)
83. {
84. if(packetX>0)
85. {
86. packetX-=10;
87. }
88. }
89. if(e.getKeyCode()==KeyEvent.VK_RIGHT)
90. {
91. if(packetX<=TABLE_WIDTH-PACKET_WIDTH)
92. {
93. packetX+=10;
94. }
95. }
96. }
97. };
98. // add key event listener
99. f.addKeyListener(keyProcessor);
100. c.addKeyListener(keyProcessor);
101.
102. ActionListener taskPerformer=new ActionListener() {
103.
104. @Override
105. public void actionPerformed(ActionEvent e) {
106. // TODO Auto-generated method stub
107. if(ballX=TABLE_WIDTH-BALL_SIZE)
108. {
109. xSpeed=-xSpeed;
110. }
111. if(ballY>PACKET_Y&&(ballXpacketX+PACKET_WIDTH))
112. {
113. timer.stop();
114. isLose=true;
115. c.repaint();
116. }
117. if(ballYPACKET_Y&&ballX>packetX&&ballX<packetX+PACKET_WIDTH))
119. {
120. ySpeed=-ySpeed;
121. }
122.
123. ballY+=ySpeed;
124. ballX+=xSpeed;
125. c.repaint();
126. }
127. };
128.
129. f.addWindowListener(new WindowAdapter() {
130. @Override
131. public void windowClosing(WindowEvent e) {
132. // TODO Auto-generated method stub
133. //super.windowClosing(e);
134. System.exit(0);
135. }
136. });
137.
138. timer=new Timer(100, taskPerformer);
139. timer.start();
140.// System.out.println("Here");
141. f.add(btnRestart,BorderLayout.SOUTH);
142. btnRestart.setEnabled(false);
143. f.pack();
144. f.setVisible(true);
145. }
146.
147. public void restartGame()
148. {
149. btnRestart.setEnabled(true);
150. btnRestart.addActionListener(new ActionListener() {
151.
152. @Override
153. public void actionPerformed(ActionEvent e) {
154. // TODO Auto-generated method stub
155. new PinBang().iniGame();
156.// timer.stop();
157.// isLose=false;
158.// ballX=150;
159.// ballY=20;
160.// iniGame();
161. }
162. });
163.
164. }
165.
166.
167.
168. public static void main(String[] args)
169. {
170. new PinBang().iniGame();
171. }
172.
173.}