Client.exe ASM

[Praxiiz]

My goal is to find a way to force the client to reload map data at an arbitrary time.

Does anyone have any extensive experience in disassembling the client? I've been working through sections of it a little at a time in Ida Pro, trying to find where it loads map data after it updates the player's position.

If I change data in one of the memory-mapped map files (map0.mul), I see no immediate change on screen, but after moving away and coming back, I can see the change. I would really like to find a way to force the client to reload that part of the map immediately.

 

[Darkling89]

Sounds like the client loads sections of the terrain at a time and when you move offscreen and then back on screen its forced to load that section, Which means that there probaly isnt an update function for terrain just a load function. First step would be finding that function and try changing the conditions required for it to load a new part of the map.

I might look into this some when i get the time, but dont cross your fingers

Also, may i ask the reason you need this? Realtime map editor perhaps?

 

[Praxiiz]

It does appear to load sections of the terrain at a time when you are moving. I was lucky enough to run across part of the linked list it uses and I was able to watch it add and remove nodes in Cheat Engine (while I was moving the client around), but I am still working on deciphering the linked lists. They have multiple pointers going to different lists, and seem to have some very peculiar rules. I know there must be some kind of ruleset for them, but deciphering it takes time.

The reason I need this is to be able to edit maps in real time, but also to make a malleable world where players could alter the terrain under certain circumstances. I.E. mining lowers terrain after a certain amount of time mining in one spot