If I add a copper ore in my mod, with 2 ores per chunk, then RP2 adds copper with 3 ores per chunk.

Assuming we both use the ore dictionary how would this affect the rarity?

 

As I understand the dictionary it makes one able to for example use RP2's copper ore instead of my copper to create items added by my mod. But how does this affect the rarity of the ore?

As I've been told it does not affect generation meaning that the ground will generate 5 copper ores per chunk (2 from my mod, and 3 from RP2), and not stack them together to something like 2.5 ores per chunk?

 

Is this correct? 

Well actually, you can subscribe to the OreRegisterEvent and react to any registered ore however you want.

@diesieben07: I think you are confused. The OreRegisterEvent only concern the ore dictionary. This can't change other mods generation.

I suggested this as a way to easily tell which ore is registered and make your own ore generation sensitive to other ores (like, lower chance if an "equivalent" ore is registered, etc.). I didn't mean to cancel anything with it.

@Diesieben i understand it like this:

 

ModA & ModB again:

 

ModA Generates 2 copper per chunk.

ModB generates 3 Copper per chunk.

 

Now ModA thinks ModB generates to much copper so my balance gets distroyed.

 

Then ModA says ok i only accept only other copper from other mods if the Generation is lower or the same as my one.

 

Am i right Mazetar?

I think you can detect how much per chunk was generated or how big the configuration is. at the moment i have no clue how to make it^^" But i was brainstorming.^^"