How does i make a battery block that have a indicator of how full is the battery and how much Energy is inputing and outputing on them? 

 

I searched for several hours and didn't find any answers how to make this. 

You won't find tutorials on adding such specific features

search and study on how Forge works with Energy

then search about dynamically rendering models

then put it all together

1 hour ago, kiou.23 said:

You won't find tutorials on adding such specific features

search and study on how Forge works with Energy

then search about dynamically rendering models

then put it all together

 

I was talking making a indicator inside a GUI, not on the block texture, and i didn't found tutorials for implement energy I/O on the block that was to be the battery. 

1 hour ago, Eduardu44 said:

 

I was talking making a indicator inside a GUI, not on the block texture, and i didn't found tutorials for implement energy I/O on the block that was to be the battery. 

I think you can do that with capabilities if I'm not mistaken, Forge provides an EnergyCapability even

and for the indicator you can do that in the render method in your container screen class

There is a thing called TileEntityRenderer (TER), that renders tile entities besides the block, so like, you would have the block model with empty spaces and the TER would render another model in that empty spaces. Read the documentation on it, https://mcforge.readthedocs.io/en/1.16.x/tileentities/tesr/, it's somewhat vague, but check other mods that uses it, probably you are gonna also want to search for TESR, which was how this was previously called, but the render method changed, so you have to know how to render stuff. Read this as well, https://gist.github.com/williewillus/30d7e3f775fe93c503bddf054ef3f93e, although it's about porting from earlier version, this guide talks about how stuff is rendered now in 1.15+.