Posted By
Csabo
on 2013-07-31
14:51:04
|  Re: Games porting /games conversion today
The Bruce Lee game looks like it uses sprites.
If a game does have sprites, that makes the conversion more difficult by orders of magnitude (if not impossible). All the sprite handling would have to be rewritten from software. That means extra code (which might not fit into the memory) and extra CPU time (which might make the game slow). Another issue comes up if the background is character screen, the software sprites would have to take up characters as well (16 chars for a SINGLE 3x3 char sprite, now imagine having 6 enemies), so if the background uses all 256 characters, it just won't fit.
That is the reason why the existing converted games are the ones that they are (that sentence sounds weird). When TCFS made games (like Commando), he essentially wrote new games from scratch, using his own software sprite engine, and only reused graphics/music. (So that's a "Yes, you're right" to gerliczer's question above.)
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