Until yesterday all I did was writing the header files, and today i started to work at some functions. It's going to take much more than expected, perhaps somewhere around 100-200 hours of programming, plus some additional time for testing, debugging, etc.
I also have to wait for Wytter to take his 10 days vacation (he is in the military for the time being) because I have to ask him some stuff about some of his new code. But until he comes, I can work at some other stuff, so this is not a big problem.
Right now I am working at loading and saving the structures (buildings) on the disk, and reading their definition files (where we define their size, objects they contain, doorways, etc.)