estou aprendendo a criar jogos, sou muito novo nisso, eu tento dar play mas fica aparecendo esse erro
Exception in thread “main” java.lang.ArrayIndexOutOfBoundsException: Index 400 out of bounds for length 400
at com.Cauã.World.World.(World.java:18)
at com.Cauã.main.Game.(Game.java:47)
at com.Cauã.main.Game.main(Game.java:77)
<package com.Cauã.main;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.image.BufferStrategy;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
import com.Cauã.Entity.Entity;
import com.Cauã.Entity.Player;
import com.Cauã.World.World;
import com.Cauã.graficos.Spritesheet;
public class Game extends Canvas implements Runnable,KeyListener{
private static final long serialVersionUID = 1L;
public static JFrame frame;
private Thread thread;
private boolean isRunning = true;
private final int WIDTH = 240;
private final int HEIGHT = 160;
private final int SCALE = 3;
private BufferedImage image;
public List<Entity> entities;
public static Spritesheet spritesheet;
public static World world;
public static Player player;
public Game() {
addKeyListener(this);
setPreferredSize(new Dimension(WIDTH*SCALE,HEIGHT*SCALE));
initFlame();
world = new World ("/mapa.png");
image = new BufferedImage(WIDTH,HEIGHT,BufferedImage.TYPE_INT_ARGB);
entities = new ArrayList<Entity>();
spritesheet = new Spritesheet("/spritesheet.png");
player = new Player(0,0,19,21,spritesheet.getSprite(39, 0, 19, 21));
entities.add(player);
}
public void initFlame() {
frame = new JFrame();
frame.add(this);
frame.setResizable(false);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);}
public synchronized void start() {
thread = new Thread (this);
isRunning = true;
thread.start();
}
public synchronized void stop () {
}
public static void main(String[] args) {
Game game = new Game();
game.start();
}
public void tick() {
for(int i = 0; i < entities.size(); i++) {
Entity e = entities.get(i);
e.tick();
}
}
public void render() {
BufferStrategy bs = this.getBufferStrategy();
if(bs == null) {
this.createBufferStrategy(3);
return;
}
Graphics g = image.getGraphics();
g.setColor(new Color(0,0,0));
g.fillRect(0, 0, WIDTH, HEIGHT);
world.render(g);
for(int i = 0; i < entities.size(); i++) {
Entity e = entities.get(i);
e.render(g);
}
g.dispose();
g = bs.getDrawGraphics();
g.drawImage(image, 0, 0,WIDTH*SCALE,HEIGHT*SCALE,null );
bs.show();
}
public void run() {
long lastTime = System.nanoTime();
double amontOfTicks = 60.0;
double ns = 1000000000 / amontOfTicks;
double delta = 0;
int frames = 0;
double timer = System.currentTimeMillis();
while(isRunning) {
long now = System.nanoTime();
delta+= (now - lastTime) / ns;
lastTime = now;
if(delta >= 1) {
tick();
render();
frames++;
delta--;
}
if(System.currentTimeMillis() - timer >= 1000) {
System.out.println("FPS: " + frames );
frames = 0;
timer+=1000;
}
}
}
public void keyTyped(KeyEvent e) {
}
public void keyPressed(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_RIGHT ||
e.getKeyCode() == KeyEvent.VK_D) {
System.out.println(player);
player.right = true;
}
else if(e.getKeyCode() == KeyEvent.VK_LEFT ||
e.getKeyCode() == KeyEvent.VK_A) {
player.left = true;
}
if(e.getKeyCode() == KeyEvent.VK_UP ||
e.getKeyCode() == KeyEvent.VK_W) {
player.up = true;
}
else if(e.getKeyCode() == KeyEvent.VK_DOWN ||
e.getKeyCode() == KeyEvent.VK_S) {
player.down = true;
}
}
package com.Cauã.World;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
public class World {
public World(String path) {
try {
BufferedImage mapa = ImageIO.read(getClass().getResource(path));
int[] pixels = new int[mapa.getWidth() * mapa.getHeight()];
mapa.getRGB(0, 0, mapa.getWidth(), mapa.getHeight(), pixels, 0, mapa.getWidth());
for( int xx = 0; xx < mapa.getWidth();xx++) {
for(int yy = 0; xx < mapa.getHeight();yy++) {
int pixelAtual = pixels[xx + (yy*mapa.getWidth())];
if (pixelAtual == 0xFF000000) {
//chão
}else if(pixelAtual == 0xFFFFFFFF) {
//parede
}
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void render(Graphics g) {
}
}
package com.Cauã.graficos;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
public class Spritesheet {
private BufferedImage spritesheet;
public Spritesheet(String path) {
try {
spritesheet = ImageIO.read(getClass().getResource(path));
} catch (IOException e) {
e.printStackTrace();
}
}
public BufferedImage getSprite(int x,int y,int width,int height) {
return spritesheet.getSubimage(x, y, width, height);
}
}
package com.Cauã.Entity;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
public class Entity {
protected double x;
protected double y;
protected int width;
protected int height;
private BufferedImage sprite;
public Entity(int x, int y, int width, int height,BufferedImage sprite) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.sprite = sprite;
}
public int getX() {
return (int)this.x;
}
public int getY() {
return (int)this.y;
}
public double getWidth() {
return this.width;
}
public double getHeight() {
return this.height;
}
public void tick() {
}public void render(Graphics g) {
g.drawImage(sprite, this.getX(), this.getY(), null);
}
}
package com.Cauã.Entity;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import com.Cauã.main.Game;
public class Player extends Entity{
public boolean right,up,left,down;
public int right_dir = 0, left_dir = 1;
public int dir = right_dir;
public double speed = 1.4;
private int frames = 0,maxFlames = 5,index = 0, maxIndex = 3;
private boolean moved = false;
private BufferedImage[] rightPlayer;
private BufferedImage[] leftPlayer;
public Player(int x, int y, int width, int height, BufferedImage sprite) {
super(x, y, width, height, sprite);
rightPlayer = new BufferedImage[4];
leftPlayer = new BufferedImage[4];
for(int i = 0;i < 4;i++) {
rightPlayer[i] = Game.spritesheet.getSprite(40 + (i*20), 0, 20, 20);
}
for(int i = 0;i < 4;i++) {
leftPlayer[i] = Game.spritesheet.getSprite(40 + (i*20), 20, 20, 20);
}
}
public void tick() {
moved = false;
if(right) {
moved = true;
dir = right_dir;
x+=speed;
}
else if(left) {
moved = true;
dir = left_dir;
x-=speed;
}
if(up) {
moved = true;
y-=speed;
}
else if(down) {
moved = true;
y+=speed;
}
if(moved) {
frames++;
if(frames == maxFlames) {
frames = 0;
index++;
if(index > maxIndex) {
index = 0;
}
}
}
}
public void render(Graphics g) {
if(dir == right_dir) {
g.drawImage(rightPlayer[index],this.getX(),this.getY(),null);
}
else if(dir == left_dir) {
g.drawImage(leftPlayer[index], this.getX(),this.getY(),null);
}
}
}
agradeço desde já :0