I'm having a rather annoying problem. I've gone over almost every inch of videos 1-4 and I can't seem to fix this problem. I believe it is a KeyListener problem but I am unsure. The character won't move. I'll post my code below but I would really appreciate if you would post all of your source code for the tutorial series online.
Main.java
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import javax.swing.JFrame;
public class Main {
public static void main(String[] args){
JFrame frame = new JFrame("Test Game");
frame.setSize(800, 600);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.add(new GameFrame());
frame.setVisible(true);
}
}
GameFrame.java
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import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Random;
import javax.swing.JPanel;
import javax.swing.Timer;
public class GameFrame extends JPanel implements ActionListener {
Timer mainTimer;
Player player;
int enemyCount = 5;
static ArrayList<Enemy> enemies = new ArrayList<Enemy>();
Random rand = new Random();
public GameFrame() {
setFocusable(true);
player = new Player(100, 100);
addKeyListener(new KeyAdapt(player));
mainTimer = new Timer(10, this);
mainTimer.start();
for(int i=0; i < enemyCount; i++) {
addEnemy(new Enemy(rand.nextInt(800), rand.nextInt(600)));
}
}
public void paint(Graphics g){
super.paint(g);
Graphics2D g2d = (Graphics2D) g;
player.draw(g2d);
for(int i =0; i < enemies.size(); i++) {
Enemy tempEnemy = enemies.get(i);
tempEnemy.draw(g2d);
}
}
@Override
public void actionPerformed(ActionEvent arg0) {
player.update();
repaint();
}
public void addEnemy(Enemy e){
enemies.add(e);
}
public static void removeEnemy(Enemy e) {
enemies.remove(e);
}
public static ArrayList<Enemy> getEnemyList(){
return enemies;
}
}
Entity.java
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import java.awt.Graphics2D;
public class Entity {
int x,y;
public Entity(int x, int y){
this.x = x;
this.y = y;
}
public void update() {
}
public void draw(Graphics2D g2d){
}
}
Player.java
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import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;
import java.util.ArrayList;
import javax.swing.ImageIcon;
public class Player extends Entity {
int velX = 0, velY = 0;
int speed = 2;
public Player(int x, int y) {
super(x, y);
}
@Override
public void update() {
x = x + velX;
y = y + velY;
checkCollisions();
}
@Override
public void draw(Graphics2D g2d){
g2d.drawImage(getPlayerImg(), x, y, null);
//g2d.draw(getBounds());
}
public Image getPlayerImg() {
ImageIcon ic = new ImageIcon("C:/Users/Alex/Desktop/Player.png");
return ic.getImage();
}
public void KeyPressed(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_W) {
velY = -speed;
}
else if(key == KeyEvent.VK_S) {
velY = speed;
}
else if(key == KeyEvent.VK_A) {
velX = -speed;
}
else if(key == KeyEvent.VK_D) {
velX = speed;
}
}
public void KeyReleased(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_U) {
velY = 0;
}
else if(key == KeyEvent.VK_S) {
velY = 0;
}
else if(key == KeyEvent.VK_A) {
velX = 0;
}
else if(key == KeyEvent.VK_D) {
velX = 0;
}
}
public void checkCollisions() {
ArrayList<Enemy> enemies = GameFrame.getEnemyList();
for(int i=0; i < enemies.size(); i++){
Enemy tempEnemy = enemies.get(i);
if (getBounds().intersects(enemies.get(i).getBounds())) {
GameFrame.removeEnemy(tempEnemy);
}
}
}
public Rectangle getBounds() {
return new Rectangle(x, y, getPlayerImg().getWidth(null), getPlayerImg().getHeight(null));
}
}
KeyAdapt.java
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import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
public class KeyAdapt extends KeyAdapter{
Player p;
public KeyAdapt(Player player) {
p = player;
}
public void KeyPressed(KeyEvent e) {
p.KeyPressed(e);
}
public void KeyReleased(KeyEvent e) {
p.KeyReleased(e);
}
}
Enemy.java
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import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import javax.swing.ImageIcon;
public class Enemy extends Entity {
public Enemy(int x, int y) {
super(x, y);
}
public void update() {
}
public void draw(Graphics2D g2d){
g2d.drawImage(getEnemyImg(), x, y, null);
//g2d.draw(getBounds());
}
public Image getEnemyImg() {
ImageIcon ic = new ImageIcon("C:/Users/Alex/Desktop/Player.png");
return ic.getImage();
}
public Rectangle getBounds() {
return new Rectangle(x, y, getEnemyImg().getWidth(null), getEnemyImg().getHeight(null));
}
}
"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction." - Albert Einstein
Old Project(s):
The Dark Flame
