This was posted by psugar in another thread
Ok, apparently this is fixed in the patch which Frogboy spoke of. And I didn't have to do nuffin.
Briefly, the "copy whole folder" issue: at a low level, the engine separates things into folders... if it finds the GameInfo folder, it will pull everything from that folder. (Rather than loading specific files, it enumerates the files in the folder and loads them) To change the engine to handle pulling things from two different folders and deciding what to do if there's a conflict is non-trivial... not massive, but not trivial.
In addition, what do you do if you want to remove files that were in the original folder and only use the ones in the mod folder? You can't, because it will fall back to the original. Unless we add a switch to say "don't use original folder" to the mod - fine. Then what do you do if you are stacking mods and one says "don't" and one says "do"... it's a potential black hole of messiness.
Cheers
My question is does this apply to everything you modify? for instance say you modify one file in GameInfo folder another in Mesh folder and finally in Texture folder, do you still have to provide every single file from the original folders into your mod folder whether you've touched them or not?
If this is still the case it's going to make even the simplest of mods pretty big in size and also only allow you to run one mod at a time unless i'm missing something. The only reason i ask is i ran a test on a smiple modification to star_blue changing the mesh, and of course in the mesh file i changed the texture name and provided the texture. first test game crashed, so i copied all gameinfo files into mod folder, ran second test game didn't crash but didn't have any menu textures. So i can only conclude you have to provide all files in every folder you modify whether you've touched it or not. is this true?
In the case of my Mod Sin's Enhanced, which is or maybe was planned to be very modular in design but i was under the impression you could enable multiple mods as in other games which can be modded. As with size my current edition of Sins Enhanced - Sky Box Edition is already nearing over a 100megs with just files i've changed/added in the texture fold, but if i had to include all other textures too, we are talking about a pretty big download.
Hopefully i'm just missing something and paranoid but if all this is the way it works i don't know if it's worth it to mod the game.