Hello!

 

I tried to add an effect when i wear my armor so i try some line of codes:

 

@Override
	public void onArmorTick(World world, EntityPlayer player, ItemStack item)
	{
		if(player.inventory.armorItemInSlot(0) != null &&
			player.inventory.armorItemInSlot(1) != null && 
			player.inventory.armorItemInSlot(2) != null &&
			player.inventory.armorItemInSlot(3) != null)
		{
			if(player.inventory.armorItemInSlot(0).getItem() == ModItems.WULFENITE_BOOTS &&
				player.inventory.armorItemInSlot(1).getItem() == ModItems.WULFENITE_LEGGINGS && 
				player.inventory.armorItemInSlot(2).getItem() == ModItems.WULFENITE_CHESTPLATE &&
				player.inventory.armorItemInSlot(3).getItem() == ModItems.WULFENITE_HELMET)
			{
				player.addPotionEffect(new PotionEffect(Potion.getPotionById(16), 20, 0));
			}
		}
	}

 

Or

 

	@Override
	public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
		
		if (player.inventory.armorItemInSlot(3) != null && player.inventory.armorItemInSlot(3).getItem() == ModItems.WULFENITE_HELMET
				    	        && player.inventory.armorItemInSlot(2) != null && player.inventory.armorItemInSlot(2).getItem() == ModItems.WULFENITE_CHESTPLATE
				    	        && player.inventory.armorItemInSlot(1) != null && player.inventory.armorItemInSlot(1).getItem() == ModItems.WULFENITE_LEGGINGS
				   	        && player.inventory.armorItemInSlot(0) != null && player.inventory.armorItemInSlot(0).getItem() == ModItems.WULFENITE_BOOTS) {
			player.addPotionEffect(new PotionEffect(MobEffects.WATER_BREATHING, 40, 4, false, false));
		}
	}

 

They work perfectly in Solo,

but when i join my SpongeForge server 1.12.2 with my mod, and i wear my armor i get disconnect with the message "Internal Server Error"

In the console, there's this error:

 

net.minecraft.util.ReportedException: Ticking player
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:459) ~[oq.class:?]
at net.minecraft.network.NetHandlerPlayServer.redirect$onPlayerTick$zjb000(NetHandlerPlayServer.java:2056) ~[pa.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:173) ~[pa.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:209) ~[NetworkDispatcher$1.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:285) ~[gw.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180) [oz.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:790) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.NoSuchMethodError: net.minecraft.entity.player.InventoryPlayer.func_70440_f(I)Lnet/minecraft/item/ItemStack;
at fr.mrsawz.sawzmod.items.armor.ArmorBase.onArmorTick(ArmorBase.java:71) ~[ArmorBase.class:?]
at net.minecraft.entity.player.InventoryPlayer.func_70429_k(InventoryPlayer.java:371) ~[aec.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.java:511) ~[aed.class:?]
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2179) ~[vp.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:234) ~[aed.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:382) ~[oq.class:?]
... 10 more
[11:08:16]: [NetHandlerPlayServer] MrSawZ lost connection: Internal server error

 

I don't know why and i didn't found any pieces of information on the internet.

Can you help me, please?  

 

I do this but it doesn't work 

	public void onArmorTick(World world, EntityLivingBase entitylivingbase, ItemStack itemStack) {

	ItemStack helmet = entitylivingbase.getItemStackFromSlot(EntityEquipmentSlot.HEAD);
			if(helmet.getItem() == ModItems.WULFENITE_HELMET) {
				entitylivingbase.addPotionEffect(new PotionEffect(Potion.getPotionById(16), 20, 0));
			}
	}	

 

I tried to search on the internet, but i only found a little piece of code 

I didn't know how i can do this, i have no more idea

7 minutes ago, diesieben07 said:

• Do not use hardcoded numeric IDs. Numeric IDs can and will change. Use the constants in the MobEffects class.
• Define "does not work".

Ok so i change :

entitylivingbase.addPotionEffect(new PotionEffect(Potion.getPotionById(16), 20, 0));

with this

entitylivingbase.addPotionEffect(new PotionEffect(MobEffects.NIGHT_VISION, 5, 1));

 

 

there is no error in my code but when i put my "Wulfenite Helmet" I have no effects given to me

I think the helmet check on the "EntityEquipmentSlot.HEAD" doesn't work

	public void onArmorTick(World world, EntityLivingBase entitylivingbase, ItemStack itemStack) {

	ItemStack helmet = entitylivingbase.getItemStackFromSlot(EntityEquipmentSlot.HEAD);
			if(helmet.getItem() == ModItems.WULFENITE_HELMET) {
				entitylivingbase.addPotionEffect(new PotionEffect(MobEffects.NIGHT_VISION, 5, 1));
			}
	}	

 

Ok, so i found the solution after some test,

i leave the code here if someone wants him

		if(itemStack.getItem().equals(ModItems.WULFENITE_HELMET) 
			&& !player.inventory.armorInventory.get(1).isEmpty() 
			&& !player.inventory.armorInventory.get(2).isEmpty() 
			&& !player.inventory.armorInventory.get(0).isEmpty()) // CHECK IF FULL ARMOR PUT ON THE PLAYER	{

			if(player.inventory.armorInventory.get(1).getItem().equals(ModItems.WULFENITE_LEGGINGS) 
				&& player.inventory.armorInventory.get(2).getItem().equals(ModItems.WULFENITE_CHESTPLATE) 
				&& player.inventory.armorInventory.get(0).getItem().equals(ModItems.WULFENITE_BOOTS)) // CHECK IF BOOTS LEGGINGS AND CHESTPLATE IS YOURS	{

			player.addPotionEffect(new PotionEffect(MobEffects.FIRE_RESISTANCE, 20, 0));
			}
		}

 

 

Quote

if(itemStack.getItem().equals(ModItems.WULFENITE_HELMET) 
			&& !player.inventory.armorInventory.get(1).isEmpty() 
			&& !player.inventory.armorInventory.get(2).isEmpty() 
			&& !player.inventory.armorInventory.get(0).isEmpty())

This "if" check is pointless (the check for non-empty armor part) since you've wrote another "if" checking if the armor is your armor.