| Re: [AD] rotate direction |
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On Sun, 2008-10-26 at 14:53 -0600, Trent Gamblin wrote:
> Writing some code for my game I came to realize that the C trig
> function sin behaves differently than the al_draw_rotated_*
> functions. "sin" starts at 0 (3 o'clock) and moves clockwise so that
> pi/2 is at 6 o'clock. The allegro functions however go counter
> clockwise, starting at the same 0 with pi/2 at 12 o'clock.
What do you mean?
sin(0) = 0
sin(pi/2) = 1
There's no clockwise in there..
--
Elias Pschernig <elias@xxxxxxxxxx>