I'm not that thrilled - even if it worked correctly. Joystick input should have been optional, especially for target coordinates. But this would have required faster (&better) graphics and this was clearly beyond the author's abilities (or will). I'm particularly unhappy with the map scale problems which show his indifference to the subject matter.
I hear you. I like the game though. It is like a board game form of Silent Hunter. Obiously not well executed though. Maybe I should do a remake on a modern computer. Could be kind of fun. Shame I can't get to the basic code though.