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Forge NBTTagCompound won't load.


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Here is my extendedEntityClass

public class WerewolfData implements IExtendedEntityProperties {

public static final String PROP_NAME="WerewolfData";

private final EntityPlayer player;

private boolean isWerewolf=true;
private boolean isInWerewolfForm=true;

public WerewolfData(EntityPlayer player){
	this.player = player;

public static final void register(EntityPlayer player){
	player.registerExtendedProperties(PROP_NAME, new WerewolfData(player));

public static final WerewolfData get(EntityPlayer player){
	return (WerewolfData)player.getExtendedProperties(PROP_NAME);

public void saveNBTData(NBTTagCompound compound) {
	NBTTagCompound properties=new NBTTagCompound();

	properties.setBoolean("isWerewolf", isWerewolf);
	properties.setBoolean("isInWerewolfForm", isInWerewolfForm);

	compound.setTag(PROP_NAME, properties);
	System.out.println("has been saved");

public void loadNBTData(NBTTagCompound compound) {
	NBTTagCompound properties = (NBTTagCompound)compound.getTag(PROP_NAME);

	isWerewolf = properties.getBoolean("isWerewolf");
	isInWerewolfForm = properties.getBoolean("isInWerewolfForm");
	System.out.println("has been loaded");

public void init(Entity entity, World world) {
	// TODO Auto-generated method stub


public final void makeWerewolf(boolean input){

public final boolean isWerewolf(){
	return isWerewolf;

public final void changeIntoWerewolfForm(boolean input){

public final boolean isInWerewolfForm(){
	return isInWerewolfForm;



Here is my constructing event.

@SubscribeEvent(priority = EventPriority.NORMAL, receiveCanceled=true)
public void constructPlayers(EntityConstructing event){
	if(event.entity instanceof EntityPlayer){
		EntityPlayer player=(EntityPlayer)event.entity;

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I am confused on the client and the server communications. Is all the data allocated on the server and the client? Is why I must send some data in packets or use the data watcher. Is the construction event server side only? That would explain why the client would need to have its data updated.

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