how to i program a multi block with conected textures

[Mystic4pheonix]

for exsample ill reference the witchery  

the alter block to the multi block alter?

 

[Mystic4pheonix]

and there are no tutorials on this topic to

[Aeronica]

These are not tutorials, but ZeroNoRyoki has a library and test mod you can look over to get some idea of how multi-block structures and connected textures work. 
https://github.com/ZeroNoRyouki/ZeroCore

https://github.com/ZeroNoRyouki/ZeroTest

 

 

[Mystic4pheonix]

@Aeronica this i 1.9.4 is it compatible with 1.11.2+

[Aeronica]

The basic concepts for dealing with blocks blockstate, etc has been pretty stable since 1.8.9.Of course every version beings some changes. There are some method names method and signatures changes between releases, but you should be able to work those out.

 

[Mystic4pheonix]

ok thank im trying it now "see you im two year"  it's going to take awhile