loordgek

do you hava a link

MAX_DAMAGE_ARRAY is 4 elements long, you want to get element 6 that is why you get ArrayIndexOutOfBoundsException

what is 3 * 7? < that's wrong

why

https://mcforge.readthedocs.io/en/latest/networking/

you need to tell the server that it needs to change the slot

https://www.curseforge.com/minecraft/mc-mods/building-gadgets

read what diesieben07 linked you and try it its not that hard

https://mcforge.readthedocs.io/en/1.13.x/datastorage/capabilities/

is it working now ?

https://github.com/MinecraftForge/MinecraftForge/blob/1.17.x/src/main/java/net/minecraftforge/event/world/SleepFinishedTimeEvent.java#L54

what are you trying to do 9 out of 10 there are ways to do something that doesn't involve mixin/asm

https://mcforge.readthedocs.io/en/1.13.x/datastorage/capabilities/

where did you get forge from

click the green box it tells wat to do

do you have java installed

that is because the slots are still linked to the first backpack

works fine for me can you show what you mean

fixed here you are trying to get your capablilty from your backpack w/ no side(null) https://github.com/Zemelua/UMU-Mod/blob/main/src/main/java/io/github/zemelua/umumod/inventory/container/BelongingsUMUPlayerContainer.java#L61 here you check if there is no side(null) https://github.com/Zemelua/UMU-Mod/blob/main/src/main/java/io/github/zemelua/umumod/capability/FunctionalBackpackCapabilityProvider.java#L29 so you never get the capablilty use ifPresent instead of orElse so .ifPresent(add the slots in here)

after a bit of testing i found the problem this.player.getItemStackFromSlot(EquipmentSlotType.CHEST).getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY).orElse(new ItemStackHandler(36) .orElse(new ItemStackHandler(36) < that is the problem NEVER EVER do that. you should never return a new object in .orElse

https://github.com/Zemelua/UMU-Mod/blob/main/src/main/java/io/github/zemelua/umumod/inventory/container/BelongingsUMUPlayerContainer.java#L60 what are you doing here ?

why does ArmorRenderer extend ArmorItem ?

you dont have enough memory https://cubedhost.com/help/en/articles/1648388-how-do-i-allocate-more-memory-to-my-minecraft-launcher-client-side