trig and angles in the computer world?

BlitzMax Forums/BlitzMax Beginners Area/trig and angles in the computer world?

The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.

mudcat
 #1
I have a line drawn at the bottom of my screen,I shoot a canon ball from the right side.When it hits the bottom screen,I want it to bounce.My problem is the angles.What is the angle if the ball is dropped straight down?How about 45 degrees in the real world,what is it in our world?I've done the tan2 demos but the angles are neg,and can't seem to relate it to the real world.

Thanks,
mudcat