Rise Run

[marc nin]

So I really have troubles with Bios functions of Rise and Run, and
index pairs, i don't understand nothing.
So, i have an angle and i have a Run value.....How i get Rise value
for that angle and Run value????? Any function of Bios can get this??

Please help!

[VectrexMad!]

Hello, I did see your message before in December but didn't really
understand your question.

Previously you said:
>Someone knows how to get a 2 bytes precision angle ?
>With bios function i only get an 8 bit and i need
>more precision . Example: i have a line with run a and rise b and then get angle
>1, and i want to clone this line exactly with the same angle.

I can't understand why you would need the extra precision on a
Vectrex. Perhaps it would help someone to understand better (and offer
you a potential solution) if you could explain what you are trying to
do - i.e. what aspect in the game I assume you are developing are you
trying to acheive?

VectrexMad!
http://www.vectrex.co.uk

[marc nin]

:) I try to reproduce or clone a Hyper Chase game. At this moment my
problem is the middle line that cross street (the line that make us
seems we are moving). it's really hard to program (i'm a basic
programmer). I have really difficult to explain in english.
Now i understand after learn all bios lines how works Rise_Run, and
angles routines...and neither of them fit to my goal.