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[1.12.2] Custom potion effects


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Hello, I'm new to modding and still trying to figure out what I can and cannot do. I want to make a new potion effect that can be given to the player, whether with commands or with an actual potion item. The goal is to just create a Poison Resistance effect that negates any damage done to the player from poison. Can anybody point me in the right direction to do this?

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  • 2 months later...
14 hours ago, Spanospy said:

Full code examples would be useful. Any chance you can link one? (bonus points if it's 1.14 specific)

Just make the subclass and override the necessary methods.


Then make a registry class (which could be inside this one, doesn't matter) with @EventBusSubscriber annotation. Then, in this class, subscribe to Register<Potion> event, where you'd use the provided methods to register the option effect. It's similar to making normal items and blocks.

Edited by Differentiation
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37 minutes ago, Spanospy said:

Let me know if you can follow your own instructions.

I can follow both of their instructions. It's just that I think diesieben was using "Potion" because of 1.14.4 when you are using 1.12.2


37 minutes ago, Spanospy said:

Unsure about how to throw it into a potion item though, but I'll figure it out when I can be bothered.

If you mean create a Potion Item that uses your Potion instance. It should be automatic after you've registered your PotionType. Brewing them in another question.


I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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