OpenEuphoria

3D-prototype / Ancients.ex

• Posted by "Lucius L. Hilley III" <luciuslhilleyiii at JUNO.COM> Feb 28, 1997
• 1086 views

Hello all
I tracked down a couple of ways to speed up the
3d prototype program.  One thing is the even function
is slightly faster using.
function even(atom a)
  return remainder(a, 2) = 0
end function
instead of
return floor(a / 2) = a / 2
my reasoning is that remainder is ONE fuction and
you have a/2 then floor and another a/2  TOTAL of
3 commands not 1
I managed to reduce the screen() function
loops from -15 to 35 and 1 to 20 a total of 1,000 calls
with a if then filter of what you don't need.
to two loops that total 620 calls without the filter.
after his filter of what wasn't needed he only had
620 calls. It was calling or TRYING 380 that where
being immediately filtered out.  WASTE of TIME.

FINAL Note.  The remainder function had a GOOD
impact but the LOOP change which should have had
the LARGEST impact did nearly nothing.
Reasoning, the polygon call is just to slow for practical
use with multiple calls like this. The creator of this program
MUST find another means to draw the information if he/she
expects to gain any speed at all.  I repeat THE Polygon call
must be DROPPED or REPLACED it is just to slow.

Speaking of which.  Robert! Would you explain why the
polygon call is so slow.
My guess is because of it's power. IT is a powerful command.
Just like Windows is powerful BUT usually compared to DOS
it's speed it Stinks. :)

One more thing. For me to reduce the 1,000 try/call loops to
620 try/call loops to EXTREME effort.  I had to do lots of
examining of what numbers were and weren't being used.
If anyone would like a copy of my "values.ex" program which
contains both the original 1,000 try/call loops with filter and
my 620 try/call loops without filter just ask.

Have fun

--Lucius Lamar Hilley III
--   E-mail at luciuslhilleyiii at juno.com
--  I can only support file transfers of less than 64K.