[1.15.1] How do you check what a player is holding in their hand?

[WatIzDat]

hello, a new modder here. So i've been in the process of making my first mod, when i hit a block. I can't figure out how to detect what a player is holding in their hand. I'm trying to make it so that when the player crouches and they are holding a sword in their hand they get strength and slowness. I've already tried to find an answer by looking it up on google, no luck.

[DavidM]

Override Item#onUpdate (which is called every tick if an instance of the item is in the player's inventory) and check if the isSelected parameter is true (which will be true if the player is holding the item). If true, the check if the player is crouching (PlayerEntity#isSneaking or something) and apply your effects.

[WatIzDat]

can you help me with code? as i said, i'm new to modding, sry

[DavidM]

We do not provide copy-paste code on this forum.

Which part do you not understand?

If you want the effect to occur on a vanilla item (as opposed to a custom item added by your mod), subscribe to PlayerTickEvent and check for the item in hand instead.

Edited May 26, 2020 by DavidM

[WatIzDat]

what im not understanding is how to put what you are saying into code.

[Ugdhar]

Are you new to modding, or new to Java? Overriding a method is very basic Java/OOP.

 

If you are new to Java, then unless you are well versed in a similar language, you will have a Bad Time trying to mod. If this is the case, I would strongly advise looking up learning java on google, and start small.