I'm trying to make tools that repair themselves by draining the player's hunger. I tried using the Item's onUpdate method, but I can't add an EntityPlayer object to the parameters or it doesn't call the method. How can I do this?

 

Item class (I've commented out the code involving EntityPlayer so it actually runs, but that's the code I want to use):

package com.ferret.myfirstmod;

import ibxm.Player;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item.ToolMaterial;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemSword;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.GameRegistry;

public class ItemLightSword extends ItemSword {

private final String name = "lightsword";

protected ItemLightSword(ToolMaterial material, String name) {
	super(material);
	setUnlocalizedName(MyFirstMod.MODID + "_" + name);
}

public void onUpdate(ItemStack stack, World worldIn, Entity entityIn, int itemSlot, boolean isSelected) 
{
	if (stack.getItem() == MyFirstMod.lightsword)
	{
		if (stack.getItemDamage() > 0 /*&& player.getFoodStats().getFoodLevel() > 0*/)
		{
			//player.getFoodStats().addStats(-1, 0);
			stack.setItemDamage(stack.getItemDamage() - 1);
			System.out.println("Item repaired!");
		}
	}
}

}

if (entityIn instanceof EntityPlayer) {
  EntityPlayer player = (EntityPlayer) entityIn;
  // Your Code
}

Thanks. One other question, is it possible to change the efficiency or damage of a tool based on the player's hunger level?

Subscribe to PlayerEvent.BreakSpeed, you can get an instance of the player via event.player, set newSpeed to whatever.