🚀 go-pugleaf

I am trying to do simple animation/graphics on the Amiga. The demo
programs that came with my Benchmark Modula-2 package are serving as
learning tools. Unfortunately I don't have the extra libraries that come
with the compiler, which some of the demos require.

Many of the demo programs use a module by the name of "SimpleDBuf". In it are
the procedures "CreateDBufScreen", "DeleteDBufScreen", and "FlipDBufScreen".
These procedure look pretty handy to me. I've been told that animation
on the amiga is sometimes done by drawing an object on a screen and then
flipping the screen to the front. I thought perhaps that's what these 
procedures were doing, but being an unexperienced programmer on 
the amiga I haven't found a way to reconstruct them. :-(

Could somebody either explain how these procedure might work and give
me some hints on reproducing them or give me their own personal hack?
Any general tips on doing graphics would be appreciated. Thanks!!!


Internet: gregm@csd4.csd.uwm.edu     Bitnet: gregm%csd4.csd.uwm.edu@INTERBIT  
Uucp: gregm@uwmcsd4.uucp             Name  : Greg Mumm