arcade-game-source-code project update

I finally have enough of the movement engine implemented, so that all the enemies are able to make it successfully to their positions in the home formation. This includes the side-to-side and the "pulsing" components of the motion. Please see video below. I haven't shared many technical details about the project to this point (after all, the source code is there for all to see!). One comment I want to make about the video is that even though the title bar window has Mame32 on it, the game logic is not in emulated Z80 - it is all C-code. However, the program is linked to a cut-down version of MAME which takes care of the "machine" stuff, i.e. graphics and sound rendering.