TGSaveData.java

package travellersgear.api;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.world.WorldSavedData;
import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.relauncher.Side;

public class TGSaveData extends WorldSavedData
{
	private static TGSaveData INSTANCE;
	/** This is for the server! */
	public HashMap<UUID, NBTTagCompound> playerData = new HashMap<UUID, NBTTagCompound>();
	/** This is for the client! */
	public static HashMap<UUID, NBTTagCompound> clientData = new HashMap<UUID, NBTTagCompound>();

	public static final String dataName = "TG-SaveData";
	public TGSaveData(String s)
	{
		super(s);
	}

	@Override
	public void readFromNBT(NBTTagCompound nbt)
	{
		NBTTagList tagList = nbt.getTagList("playerList", 10);
		for(int i=0; i<tagList.tagCount(); i++)
		{
			NBTTagCompound tag = tagList.getCompoundTagAt(i);
			UUID uuid = new UUID(tag.getLong("UUIDMost"), tag.getLong("UUIDLeast"));
			playerData.put(uuid, tag);
		}
	}

	@Override
	public void writeToNBT(NBTTagCompound nbt)
	{
		NBTTagList tagList = new NBTTagList();

		for (Map.Entry<UUID, NBTTagCompound> entry : playerData.entrySet())
		{
			if (entry.getKey() != null && entry.getValue() != null)
			{
				NBTTagCompound tag = entry.getValue();
				tag.setLong("UUIDMost", entry.getKey().getMostSignificantBits());
				tag.setLong("UUIDLeast", entry.getKey().getLeastSignificantBits());
				tagList.appendTag(tag);
			}
		}
		nbt.setTag("playerList", tagList);
	}

	public static NBTTagCompound getPlayerData(EntityPlayer player)
	{
		if(FMLCommonHandler.instance().getEffectiveSide()==Side.SERVER)
		{
			if(INSTANCE!=null)
				return INSTANCE.playerData.get(player.getPersistentID());
		}
		else
			return clientData.get(player.getPersistentID());
		return new NBTTagCompound();
	}
	public static void setPlayerData(EntityPlayer player, NBTTagCompound tag)
	{
		if(FMLCommonHandler.instance().getEffectiveSide()==Side.SERVER)
		{
			if(INSTANCE!=null)
				INSTANCE.playerData.put(player.getPersistentID(),tag);
		}
		else
			clientData.put(player.getPersistentID(),tag);
	}
	public static void setDirty()
	{
		System.out.println("Attempting to mark dirty, instance="+INSTANCE);
		if(FMLCommonHandler.instance().getEffectiveSide()==Side.SERVER)
			if(INSTANCE!=null)
			{
				INSTANCE.markDirty();
				System.out.println("marked dirty.");
			}
	}
	public static void setInstance(TGSaveData in)
	{
		if(FMLCommonHandler.instance().getEffectiveSide()==Side.SERVER)
			INSTANCE = in;
	}
}