ocation of core fileWhat is a C++ executable?
The last time I checked, executables contained machine code.
Unresolved externalYou have declared all those variables in your header but you have not defined them (there's a differ...
Read all pixels from bitmap into one big arrayIt might pay to research the bitmap file format
Game programmersI am currently developing a voxel engine, you can see videos of it on my channel:
Unresolved externalHave you defined the 14 external symbols you declared in ConnectionHeader.h?