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[1.7.10] Custom Potion Effect


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So yeah im making a custom potion effect called wizards fatigue, problem is I get this crash report, and im pretty sure im doing allot wrong, :P so yeah, if you guys could help me out that'd be greatly appreciated. ok heres is my main class and other stuff


package com.OlympiansMod.Main;

import net.minecraft.client.renderer.entity.RenderSnowball;
import net.minecraft.potion.Potion;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.living.LivingDeathEvent;
import net.minecraftforge.fluids.FluidRegistry;

import com.OlympiansMod.Block.ModBlocks;
import com.OlympiansMod.Item.DnaPosideonInfused;
import com.OlympiansMod.Item.DnaStats;
import com.OlympiansMod.Item.DnaStats2;
import com.OlympiansMod.Item.DnaZeusInfused;
import com.OlympiansMod.Item.ModItems;
import com.OlympiansMod.Potionstuff.WizardsFatigue;
import com.OlympiansMod.Potionstuff.WizardsFatigueHooks;
import com.OlympiansMod.creativetabs.MCreativeTabs;
import com.OlympiansMod.entity.EntityCell;
import com.OlympiansMod.entity.EntityGreekFire;
import com.OlympiansMod.entity.MEntity;
import com.OlympiansMod.lib.Refstrings;
import com.OlympiansMod.world.MWorld;

import cpw.mods.fml.client.registry.RenderingRegistry;
import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import cpw.mods.fml.common.registry.GameRegistry;

@Mod(modid = Refstrings.MODID , name = Refstrings.NAME , version = Refstrings.VERSION)
public class MainRegistry {
private static int modGuiIndex = 0;

public static final int GUI_CUSTOM_INV = modGuiIndex++;

@SidedProxy(clientSide = Refstrings.CLIENTSIDE , serverSide = Refstrings.SERVERSIDE)
public static ServerProxy proxy;

public static MainRegistry modInstance;

public static Potion customPotion = (new WizardsFatigue(32, false, 0)).setIconIndex(0, 0).setPotionName("potion.wizardsFatigue");;

public static void PreLoad(FMLPreInitializationEvent PreEvent) {
	FMLCommonHandler.instance().bus().register(new WizardsFatigueHooks());
	FMLCommonHandler.instance().bus().register(new DnaZeusInfused());
public static void Load(FMLInitializationEvent event) {

public static void PostLoad(FMLPostInitializationEvent PostEvent) {



Potion Classes:

package com.OlympiansMod.Potionstuff;
import net.minecraft.potion.Potion;

public class WizardsFatigue extends Potion {

public WizardsFatigue(int par1, boolean par2, int par3) {
super(par1, par2, par3);

public Potion setIconIndex(int par1, int par2) {
super.setIconIndex(par1, par2);
return this;

and hooks class:

package com.OlympiansMod.Potionstuff;

import net.minecraftforge.event.entity.living.LivingEvent.LivingUpdateEvent;

import com.OlympiansMod.Main.MainRegistry;
import com.google.common.eventbus.Subscribe;

public class WizardsFatigueHooks {

public void onEntityUpdate(LivingUpdateEvent event) {
if (event.entityLiving.isPotionActive(MainRegistry.customPotion)) {
if (event.entityLiving.worldObj.rand.nextInt(20) == 0) {


if some one has a good tutorial that would also be helpful, thank you for your time.

Im serious don't look at it!!

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