Hey everyone, I'm knew to Processing and I keep getting a NullPointerException thrown when I try to load a PImage.  Can someone help me out?  The exception occurs on the first line of loadImage(String filename) inside SpriteManager.

 

Game.java

[source]

import

processing.core.*;

public class Game extends PApplet {
private SpriteManager spriteManager;

public Game() {
spriteManager = new SpriteManager( this );
}

public void setup() {
size( 640 , 480 );

spriteManager.loadAll( "sprites" );
}

public void draw() {
background( 0 , 0 , 0 , 255 );
}

public static void main(String[] args) {
PApplet.main( new String[] { "--present" , "Game" });
}
}

[/source]

 

SpriteManager.java

[source]

import

java.util.HashMap;
import java.io.File;
import processing.core.PImage;
import processing.core.PApplet;

public class SpriteManager {
private PApplet pApplet;
private HashMap hash;

public SpriteManager(PApplet pApplet) {
pApplet = pApplet;

hash = new HashMap( 128 );
}

public boolean load(String filename) {
PImage image = pApplet.loadImage(filename);

if (image == null )
return false ;

hash.put(filename, image);

return true ;
}

public boolean loadAll(String directory) {
File file = new File(directory);

if (!file.exists())
return false ;

String[] children = file.list();

for ( int i = 0 ; i < children.length; ++i)
load(children[i]);

return true ;
}

public Sprite get(String spriteName) {
return (Sprite)hash.get(spriteName);
}

public void unload(String spriteName) {
hash.remove(spriteName);
}

public void unloadAll() {
hash.clear();
}
}

[/source]

 

Thanks for reading.