[cubano]

ohhh I love your use of UNION to create a polymorphic-type ENTITY data structure. Nice work and design.

I still love futzing around in C...It was the original langauge I learned and God did I struggle with it for years. Like the OP mentioned, C is awesome because its such a concise language but you can go as deep as you like with it.

Thanks for all your efforts and the writeup...the game has a throwback Commander Keen-type vibe to it and I loved that franchise for a minute back in Carmack's pre-3D days.