Another wtf!

[holtaf]

I have this code :

#include <math.h>
int main( int argc, char* argv[] ) {
    cout << sin( 45.0 ) << '\t' << sin( 135.0 ) << '\n';
}

And the output is ... ta-dam ...

0.0883687	0.850904

WTF !?!?!?

I want to calculate a simple bullet trajectory in my game engine.

m_bullet[ i ].x += m_bullet[ i ].speed * cos( m_bullet[ i ].angle );
m_bullet[ i ].y += m_bullet[ i ].speed * sin( m_bullet[ i ].angle );

And the result is very strange because of this!

-holtaf

[anonymous23323124]

It expects an angle in radians, not degrees.

[holtaf]

Aw snap! Thanks Xander314!!