[1.17.1] How to use existing vanilla mob renderers for my custom mob?

[SoLegendary]

I've created a custom entity named VillagerUnit which I want to look exactly like a base villager but with my own custom AI.

I was following this guide here for how to make said custom entity but he uses BlockBench to make a custom model renderer class instead of a vanilla model:

https://www.youtube.com/watch?v=iMJ1kWNWQBQ

When I try to apply the same registerRenderers code he does at 37:40 but instead on the existing vanilla renderer VillagerRenderer I get this error:

 

I assume I don't need to register the layer since that had no reference the example entity made in the video (and I assume vanilla registers the layer itself for use by the actual villager mob)

• Unit class: https://pastebin.com/Sa7PJLJT
• VillagerUnit class (extends Unit): https://pastebin.com/RvhjXL5t
• Entity registration class: https://pastebin.com/aTqAuxcN
• Attributes registration class: https://pastebin.com/iU0xFALg

[Luis_ST]

if you want to use the vanilla VillagerRenderer your custom Villager must extends the vanilla Villager

[SoLegendary]

11 minutes ago, Luis_ST said:

if you want to use the vanilla VillagerRenderer your custom Villager must extends the vanilla Villager

Is there a way to write a new renderer class that extends VillagerRenderer such that I can use it for my new class?

At the very least, what would be a way to reuse the same model?

[Luis_ST]

38 minutes ago, SoLegendary said:

Is there a way to write a new renderer class that extends VillagerRenderer such that I can use it for my new class?

no the VillagerRenderer works only for extensions of Villager

 

40 minutes ago, SoLegendary said:

At the very least, what would be a way to reuse the same model?

no the model is only for the Villager, but you could extends the vanilla Villager Model and overwrite the setupAnim method.
then you could use it for your custom Entity