Making an object move in a certain angle

Math and Physics Programming

Started by EdwardD September 01, 2003 11:01 AM

0 comments, last by EdwardD 20 years, 7 months ago

122

Author

September 01, 2003 11:01 AM

Im using C# with DX9. I want to try get my sprite to move at an angle of say 30.... how do I go about doing that... I know it has something to do with SIN and COS, I tried it, but its not working properly... Anybody got an example? Thanks, ED

Enselic

829

September 01, 2003 11:47 AM

I'd guess it's cause you pass degrees and not radians to the cos() and sin() funcs.

EDIT: If you still don't get it right...
newpos_x += cos( angle ) * number_of_pixels_to_move;
newpos_y += sin( angle ) * number_of_pixels_to_move;

EIDT #2: I'm a dumbass, didn't realise you used C#... Well, maybe the syntax is wrong but the logis remains the same.

[edited by - Enselic on September 1, 2003 12:49:20 PM]

[edited by - Enselic on September 1, 2003 1:12:41 PM]

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