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[1.19] Enchantment


Squander

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I would use LivingEquipmentChangeEvent, then you need check for EquipmentSlot.MAINHAND

then you have the following cases:

  • #getTo has your Enchantment -> add the AttributeModifier
  • #getTo has not your Enchantment -> remove the AttributeModifier
  • Edit: #getFrom and #getTo has your Enchantment -> do nothing

 

Edited by Luis_ST
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@SubscribeEvent
    public static void onChange(LivingEquipmentChangeEvent event){
        if(event.getSlot() == EquipmentSlot.MAINHAND){
            ItemStack stack = event.getTo();

            if(hasAxeSpeed(stack)){
                AttributeModifier atm = new AttributeModifier(UUID.randomUUID(), "Tool modifier", 5, AttributeModifier.Operation.ADDITION);
                stack.addAttributeModifier(Attributes.ATTACK_SPEED, atm, EquipmentSlot.MAINHAND);
            }else{
                var am = stack.getItem().getDefaultAttributeModifiers(EquipmentSlot.MAINHAND);
                am.forEach((attribute, attributeModifier) -> {
                    stack.addAttributeModifier(attribute, attributeModifier, EquipmentSlot.MAINHAND);
                });
            }
        }
    }

    private static boolean hasAxeSpeed(ItemStack pStack) {
        return EnchantmentHelper.getItemEnchantmentLevel(ModEnchantments.AXE_SPEED.get(), pStack) > 0;
    }

O

 

17 hours ago, Luis_ST said:

I would use LivingEquipmentChangeEvent, then you need check for EquipmentSlot.MAINHAND

then you have the following cases:

  • #getTo has your Enchantment -> add the AttributeModifier
  • #getTo has not your Enchantment -> remove the AttributeModifier
  • Edit: #getFrom and #getTo has your Enchantment -> do nothing

 

kay when I change an attribute the damage attribute disappears when inserting and removing an item from slot the speed attribute duplicates. I don't know what I screwed up

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6 minutes ago, diesieben07 said:

Nie musisz za każdym razem tworzyć nowego modyfikatora. Utwórz go raz, przechowuj go w statycznym polu końcowym. Używaj również stałego UUID, a nie za każdym razem losowego, w przeciwnym razie nie ma możliwości zidentyfikowania modyfikatora.

Like that

 

private static final UUID BASE_ATTACK_SPEED_UUID = UUID.fromString("FA233E1C-4180-4865-B01B-BCCE9785ACA3");
    private static AttributeModifier atm = new AttributeModifier(BASE_ATTACK_SPEED_UUID, "Tool modifier", 5, AttributeModifier.Operation.ADDITION);

    @SubscribeEvent
    public static void onChange(LivingEquipmentChangeEvent event){
        if(event.getSlot() == EquipmentSlot.MAINHAND){
            ItemStack stack = event.getTo();

            if(hasAxeSpeed(stack)){
                stack.addAttributeModifier(Attributes.ATTACK_SPEED, atm, EquipmentSlot.MAINHAND);
            }else{
                var am = stack.getItem().getDefaultAttributeModifiers(EquipmentSlot.MAINHAND);
                am.forEach((attribute, attributeModifier) -> {
                    stack.addAttributeModifier(attribute, attributeModifier, EquipmentSlot.MAINHAND);
                });
            }
        }
    }

 

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