Like 0
Fork 0

Last active 1719509743

kristofer's Avatar kristofer revised this gist 1719509743. Go to revision

1 file changed, 1 insertion, 1 deletion

SpaceInvadersGame.java

@@ -25,7 +25,7 @@ public class SpaceInvadersGame extends JPanel implements KeyListener, ActionList
25 25 score = 0;
26 26
27 27 aliens = new ArrayList<>();
28 - bullets = new ArrayList<> ();
28 + bullets = new ArrayList<>();
29 29
30 30 // Initialize aliens
31 31 for (int i = 0; i < 6; i++) {

kristofer's Avatar kristofer revised this gist 1718985233. Go to revision

1 file changed, 1 insertion, 1 deletion

SpaceInvadersGame.java

@@ -9,7 +9,7 @@ import java.util.List;
9 9 import java.util.Random;
10 10
11 11 // Read the code, and then explain it!
12 -
12 + // Do so WITHOUT running it to see what it does.
13 13
14 14 public class SpaceInvadersGame extends JPanel implements KeyListener, ActionListener {
15 15 private int playerX, playerY;

kristofer's Avatar kristofer revised this gist 1718985205. Go to revision

1 file changed, 3 insertions

SpaceInvadersGame.java

@@ -8,6 +8,9 @@ import java.util.ArrayList;
8 8 import java.util.List;
9 9 import java.util.Random;
10 10
11 + // Read the code, and then explain it!
12 +
13 +
11 14 public class SpaceInvadersGame extends JPanel implements KeyListener, ActionListener {
12 15 private int playerX, playerY;
13 16 private List<Alien> aliens;

kristofer's Avatar kristofer revised this gist 1718985178. Go to revision

1 file changed, 1 insertion, 1 deletion

SpaceInvadersGame.java

@@ -22,7 +22,7 @@ public class SpaceInvadersGame extends JPanel implements KeyListener, ActionList
22 22 score = 0;
23 23
24 24 aliens = new ArrayList<>();
25 - bullets = new ArrayList();
25 + bullets = new ArrayList<> ();
26 26
27 27 // Initialize aliens
28 28 for (int i = 0; i < 6; i++) {

kristofer's Avatar kristofer revised this gist 1718984875. Go to revision

1 file changed, 185 insertions

SpaceInvadersGame.java(file created)

@@ -0,0 +1,185 @@
1 + import javax.swing.*;
2 + import java.awt.*;
3 + import java.awt.event.ActionEvent;
4 + import java.awt.event.ActionListener;
5 + import java.awt.event.KeyEvent;
6 + import java.awt.event.KeyListener;
7 + import java.util.ArrayList;
8 + import java.util.List;
9 + import java.util.Random;
10 +
11 + public class SpaceInvadersGame extends JPanel implements KeyListener, ActionListener {
12 + private int playerX, playerY;
13 + private List<Alien> aliens;
14 + private List<Bullet> bullets;
15 + private boolean isGameOver;
16 + private int score;
17 +
18 + private SpaceInvadersGame() {
19 + playerX = 300;
20 + playerY = 480;
21 + isGameOver = false;
22 + score = 0;
23 +
24 + aliens = new ArrayList<>();
25 + bullets = new ArrayList();
26 +
27 + // Initialize aliens
28 + for (int i = 0; i < 6; i++) {
29 + aliens.add(new Alien(i * 100, 0));
30 + }
31 +
32 + Timer timer = new Timer(15, this);
33 + timer.start();
34 +
35 + addKeyListener(this);
36 + setFocusable(true);
37 + setFocusTraversalKeysEnabled(false);
38 + }
39 +
40 + public void paintComponent(Graphics g) {
41 + super.paintComponent(g);
42 + // Draw background
43 + g.setColor(Color.black);
44 + g.fillRect(0, 0, 800, 600);
45 +
46 + // Draw player
47 + g.setColor(Color.blue);
48 + g.fillRect(playerX, playerY, 50, 50);
49 +
50 + // Draw aliens
51 + for (Alien alien : aliens) {
52 + g.setColor(Color.green);
53 + g.fillRect(alien.x, alien.y, 50, 50);
54 + }
55 +
56 + // Draw bullets
57 + for (Bullet bullet : bullets) {
58 + g.setColor(Color.red);
59 + g.fillRect(bullet.x, bullet.y, 10, 20);
60 + }
61 +
62 + // Display score
63 + g.setColor(Color.white);
64 + g.setFont(new Font("Arial", Font.PLAIN, 20));
65 + g.drawString("Score: " + score, 10, 30);
66 +
67 + if (isGameOver) {
68 + g.setFont(new Font("Arial", Font.PLAIN, 50));
69 + g.drawString("Game Over", 300, 300);
70 + }
71 + }
72 +
73 + public void actionPerformed(ActionEvent e) {
74 + if (!isGameOver) {
75 + // Move aliens
76 + for (Alien alien : aliens) {
77 + alien.y += 2;
78 + }
79 +
80 + // Move bullets
81 + for (Bullet bullet : bullets) {
82 + bullet.y -= 5;
83 + }
84 +
85 + // Check for collisions
86 + checkCollisions();
87 +
88 + // Remove off-screen aliens and bullets
89 + aliens.removeIf(alien -> alien.y > 600);
90 + bullets.removeIf(bullet -> bullet.y < 0);
91 +
92 + // Spawn new aliens
93 + if (aliens.isEmpty()) {
94 + for (int i = 0; i < 6; i++) {
95 + aliens.add(new Alien(i * 100, 0));
96 + }
97 + }
98 +
99 + repaint();
100 + }
101 + }
102 +
103 + private void checkCollisions() {
104 + for (Alien alien : new ArrayList<>(aliens)) {
105 + for (Bullet bullet : new ArrayList<>(bullets)) {
106 + if (alien.getBounds().intersects(bullet.getBounds())) {
107 + aliens.remove(alien);
108 + bullets.remove(bullet);
109 + score += 10;
110 + }
111 + }
112 +
113 + if (alien.getBounds().intersects(new Rectangle(playerX, playerY, 50, 50))) {
114 + isGameOver = true;
115 + }
116 + }
117 + }
118 +
119 + public void keyTyped(KeyEvent e) {}
120 +
121 + public void keyPressed(KeyEvent e) {
122 + int key = e.getKeyCode();
123 +
124 + if (key == KeyEvent.VK_LEFT && playerX > 0) {
125 + playerX -= 20;
126 + }
127 +
128 + if (key == KeyEvent.VK_RIGHT && playerX < 750) {
129 + playerX += 20;
130 + }
131 +
132 + if (key == KeyEvent.VK_SPACE) {
133 + if (!isGameOver) {
134 + bullets.add(new Bullet(playerX + 20, playerY));
135 + } else {
136 + // Restart the game
137 + isGameOver = false;
138 + playerX = 300;
139 + score = 0;
140 + aliens.clear();
141 + bullets.clear();
142 + for (int i = 0; i < 6; i++) {
143 + aliens.add(new Alien(i * 100, 0));
144 + }
145 + }
146 + }
147 + }
148 +
149 + public void keyReleased(KeyEvent e) {}
150 +
151 + public static void main(String[] args) {
152 + JFrame frame = new JFrame("Space Invaders");
153 + SpaceInvadersGame game = new SpaceInvadersGame();
154 + frame.add(game);
155 + frame.setSize(800, 600);
156 + frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
157 + frame.setVisible(true);
158 + }
159 +
160 + private class Alien {
161 + int x, y;
162 +
163 + Alien(int x, int y) {
164 + this.x = x;
165 + this.y = y;
166 + }
167 +
168 + Rectangle getBounds() {
169 + return new Rectangle(x, y, 50, 50);
170 + }
171 + }
172 +
173 + private class Bullet {
174 + int x, y;
175 +
176 + Bullet(int x, int y) {
177 + this.x = x;
178 + this.y = y;
179 + }
180 +
181 + Rectangle getBounds() {
182 + return new Rectangle(x, y, 10, 20);
183 + }
184 + }
185 + }
Newer Older

Powered by Opengist ⋅ Load: 21ms⋅

English