Why is the new version of Forge so different from the old version of Forge?

[zenglintao]

I used the old version of Forge to write a simple item for sending messages, but I don’t know how to write these code in the new version of Forge.

 

[Draco18s]

Looks like the last time you modded was in 1.7 or there abouts.

The registration system has changed three times since then, partially to keep up with changes in Mojang code (items and blocks are now entirely stored based on their fully namespaced registry names, for example) and partially to make things more robust (and prevent people from doing stupid fucking shit like creating new items at run time, registering conditionally based on configs, or creating registry entry objects too early).

 

You're going to want this first off:

https://mcforge.readthedocs.io/en/1.15.x/concepts/registries/

 

Second, go look at the vanilla Item class (and the interface it implements, IForgeItem) in order to find the new signature for the method you're trying to override. Remember: there are two hands now, so that method now takes a Hand parameter. Be sure to check which hand is being used!

[zenglintao]

42 minutes ago, Draco18s said:

Looks like the last time you modded was in 1.7 or there abouts.

The registration system has changed three times since then, partially to keep up with changes in Mojang code (items and blocks are now entirely stored based on their fully namespaced registry names, for example) and partially to make things more robust (and prevent people from doing stupid fucking shit like creating new items at run time, registering conditionally based on configs, or creating registry entry objects too early).

 

You're going to want this first off:

https://mcforge.readthedocs.io/en/1.15.x/concepts/registries/

 

Second, go look at the vanilla Item class (and the interface it implements, IForgeItem) in order to find the new signature for the method you're trying to override. Remember: there are two hands now, so that method now takes a Hand parameter. Be sure to check which hand is being used!

What method is used to replace onLeftClickEntity in the new version of Forge?

[poopoodice]

it's the same

public boolean onLeftClickEntity(ItemStack stack, PlayerEntity player, Entity entity)