[Solved]WorldSavedData - How do i use it?

package mods.dnd91.minecraft.hivecraft;

import java.util.Iterator;

import net.minecraft.nbt.NBTTagCompound;

import net.minecraft.village.Village;

import net.minecraft.world.World;

import net.minecraft.world.WorldSavedData;

import net.minecraft.world.storage.MapStorage;

public class HiveCraftWorldData extends WorldSavedData {

final static String key = "HiveCraft.World.Data";

public static HiveCraftWorldData forWorld(World world) {

        // Retrieves the MyWorldData instance for the given world, creating it if necessary

MapStorage storage = world.perWorldStorage;

HiveCraftWorldData result = (HiveCraftWorldData)storage.loadData(HiveCraftWorldData.class, key);

if (result == null) {

result = new HiveCraftWorldData();

storage.setData(key, result);

}

return result;

}

public int tickCounter = 0;

public HiveCraftWorldData() {

super(key);

}

public void tick()

    {

        ++this.tickCounter;

        //Iterator iterator = this.villageList.iterator();

        /*while (iterator.hasNext())

        {

            Village village = (Village)iterator.next();

            village.tick(this.tickCounter);

        }

        this.removeAnnihilatedVillages();

        this.dropOldestVillagerPosition();

        this.addNewDoorsToVillageOrCreateVillage();*/

        if (this.tickCounter % 400 == 0)

        {

            this.markDirty();

        }

    }

@Override

public void readFromNBT(NBTTagCompound nbttagcompound) {

// TODO Auto-generated method stub

}

@Override

public void writeToNBT(NBTTagCompound nbttagcompound) {

// TODO Auto-generated method stub

}

}

package mods.dnd91.minecraft.hivecraft;

import java.util.EnumSet;

import net.minecraft.world.World;

import cpw.mods.fml.common.ITickHandler;

import cpw.mods.fml.common.TickType;

public class TickHandler implements ITickHandler {

public static HiveCraftWorldData worldData = null;

@Override

public void tickStart(EnumSet<TickType> type, Object... tickData) {

if(type.equals(EnumSet.of(TickType.WORLDLOAD))){

World world = null;

for(int i = 0; i < tickData.length; i++)

if(tickData instanceof World)

world = (World)tickData;

if(world == null){

return;

}

worldData = HiveCraftWorldData.forWorld(world);

worldData.markDirty();

}

}

@Override

public void tickEnd(EnumSet<TickType> type, Object... tickData) {

}

@Override

public EnumSet<TickType> ticks() {

// TODO Auto-generated method stub

return EnumSet.of(TickType.WORLDLOAD);

}

@Override

public String getLabel() {

// TODO Auto-generated method stub

return "HiveCraft_Ticker";

}

}

package mods.dnd91.minecraft.hivecraft;

import java.util.Iterator;

import net.minecraft.nbt.NBTTagCompound;

import net.minecraft.village.Village;

import net.minecraft.world.World;

import net.minecraft.world.WorldSavedData;

import net.minecraft.world.storage.MapStorage;

public class HiveCraftWorldData extends WorldSavedData {

final static String key = "HiveCraftWorldData";

public static HiveCraftWorldData forWorld(World world) {

        // Retrieves the MyWorldData instance for the given world, creating it if necessary

MapStorage storage = world.perWorldStorage;

HiveCraftWorldData result = (HiveCraftWorldData)storage.loadData(HiveCraftWorldData.class, key);

if (result == null) {

result = new HiveCraftWorldData();

storage.setData(key, result);

}

return result;

}

public HiveCraftWorldData() {

super(key);

}

public HiveCraftWorldData(String key){

super(key);

}

@Override

public void readFromNBT(NBTTagCompound nbttagcompound) {

System.out.println("READ!");

// TODO Auto-generated method stub

}

@Override

public void writeToNBT(NBTTagCompound nbttagcompound) {

System.out.println("WRITE!");

// TODO Auto-generated method stub

}

}