Source Code

package com.brogolem35.BetterCraft.handler;

import com.brogolem35.BetterCraft.potion.ModPotionEffects;

import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.init.MobEffects;
import net.minecraft.util.DamageSource;
import net.minecraftforge.event.entity.living.LivingEvent;
import net.minecraftforge.event.entity.living.LivingEvent.LivingJumpEvent;
import net.minecraftforge.event.entity.living.LivingEvent.LivingUpdateEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class PotionEvent {

	@SubscribeEvent
	public void onEntityUpdate(LivingUpdateEvent e, LivingJumpEvent ej){
		if(e.getEntityLiving().isPotionActive(ModPotionEffects.FROSTBURN)){
		if(e.getEntityLiving().getActivePotionEffect(ModPotionEffects.FROSTBURN).getDuration() == 0){
			e.getEntityLiving().removePotionEffect(ModPotionEffects.FROSTBURN);
			return;
		}
		else if(e.getEntityLiving().world.rand.nextInt(30) == 0){
			e.getEntityLiving().attackEntityFrom(DamageSource.MAGIC, 1);
		}
		}
		if(e.getEntityLiving().isPotionActive(ModPotionEffects.LIQUIDFIRE)){
			
				e.getEntityLiving().setFire(6);		
	    }
		if (e.getEntityLiving().isPotionActive(ModPotionEffects.ROOT))
        {
			if(e.getEntityLiving().getActivePotionEffect(ModPotionEffects.ROOT).getDuration() == 0){
				return;
			}
			else{
				 e.getEntityLiving().setPositionAndUpdate(Math.round(e.getEntityLiving().posX-0.5)+0.5, Math.round(e.getEntityLiving().posY), Math.round(e.getEntityLiving().posZ-0.5)+0.5);
			}	
        }
		}
	}