A few days ago I started working on a map editor - well, it's still mostly a viewer since it's still under development and I can't really do much except for changing coordinates acessibility and moving some stuff around and all was going well until I got to the point of loading .scene files and consequently some city bridges (such as twin city, for example).
I noticed that while some cities have their bridges loaded as 'cover' layers and they already have the coordinate acessibility for them set on the .dmap file, others (like TC and PC) don't. They apparently load their bridges as 'scene' layers from .scene files which contain data for the files these are supposed to use and which also set new cell's acessibility data.
The problem I'm facing is, looking at TwinCity's bridges example, the map\Scene\bridgeB-L.scene file points to ani/MapScene.ani where it's supposed to load 8 scene parts. These files seem to point to "data/map/mapobj/plain/plain/bridge05.msk", "bridge06.msk" and "bridge07.msk" and there's where I'm currently stuck at.
After taking a glimpse at the client code, when loading .MSK files, the client supposedly replaces the '.msk' for '.dds' and tries to load the file as a .dds image and if that fails then it'll try to load it as a .tga. According to the public documentation and the leaked client's code .msk files contain an alpha layer of transparecy that defines transparecy of the texture.
However, it seems that there's no .dds or .tga files for these (bridge05.msk, bridge06.msk, bridge07.msk) and there's where I'm currently at.
At this point I can already load the maps (with cover layers to simulate movement like waterfalls and such), edit cells data, place new portals or edit existing ones and most importantly export everything back so theoretically I really wouldn't need this at all to make new maps since I could simply draw all this stuff as cover layers. I guess it's just my curiosity that is piqued and is taking the best of me :\
I'll add some images/videos of what I currently got just to make this thread a tiny bit more interesting. Please ignore the ugly UI, I'm just trying to get things to work at this point and will leave embellishment for when I'm done or give up making some things work

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