A "mission" consists of a set of levels to be played, it contains an array of CSpriteData's and the ID numbers (0-255?) associated with them. Each CSpriteData consists of a djImage, which is normally the .TGA file with all the sprites on them, as well as all the data associated with the sprite file. Each TGA is 256x128 (for historical reasons, it made sense back in the original DOS EGA version :) and thus each CSpriteData represents 128 16x16 sprites.
The documentation for this class was generated from the following file: