Hi.  
	In my mod I made an item, and I would like this item to give a potion effect (in this case nausea) to the I player I aim with it.
 
	 
 
	As for now, I've got an Item class, which looks like this.
 
	 
 
public class ItemCouffey extends Item {
        @Override
        public ItemStack onItemRightClick(ItemStack item, World world, EntityPlayer player){
        System.out.println("it works"); // AMAZING
        player.playSound("vf:sword.sound", 1.0F, 1.0F);
        return item;
        }
        
}
	 
 
	I have no clue how I cloud give a potion effect to a target.. ^^  
	Thanks !