Hello, I want to know how to check if a player has a full armor set worn, how would I do that because now I have this:

@Override
public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
	if(player.inventory.armorItemInSlot(103) != null && player.inventory.armorItemInSlot(103) == new ItemStack(KokkieItems.BOOM_HELMET)) {
		if(player.inventory.armorItemInSlot(102) != null && player.inventory.armorItemInSlot(102) == new ItemStack(KokkieItems.BOOM_CHESTPLATE)) {
			if(player.inventory.armorItemInSlot(101) != null && player.inventory.armorItemInSlot(101) == new ItemStack(KokkieItems.BOOM_LEGGINGS)) {
				if(player.inventory.armorItemInSlot(100) != null && player.inventory.armorItemInSlot(100) == new ItemStack(KokkieItems.BOOM_BOOTS)) {
				}
			}
		}
	}
}

But that crashes the game

Thats it, but it doesn't detect it, I have this:

@Override
public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
	if(player.getItemStackFromSlot(EntityEquipmentSlot.HEAD) != null && player.getItemStackFromSlot(EntityEquipmentSlot.HEAD) == new ItemStack(KokkieItems.BOOM_HELMET)) {
		if(player.getItemStackFromSlot(EntityEquipmentSlot.CHEST) != null && player.getItemStackFromSlot(EntityEquipmentSlot.CHEST) == new ItemStack(KokkieItems.BOOM_CHESTPLATE)) {
			if(player.getItemStackFromSlot(EntityEquipmentSlot.LEGS) != null && player.getItemStackFromSlot(EntityEquipmentSlot.LEGS) == new ItemStack(KokkieItems.BOOM_LEGGINGS)) {
				if(player.getItemStackFromSlot(EntityEquipmentSlot.FEET) != null && player.getItemStackFromSlot(EntityEquipmentSlot.FEET) == new ItemStack(KokkieItems.BOOM_BOOTS)) {
					System.out.println("Works");
				}
			}
		}
	}
}

That's not how you compare ItemStacks.

Then how should I do it?

Oh wait, just figured it out, still thanks!