//----------------------------------------------------------------------------
// File:  C3DMath.h
// Class: 
// Type:  3D API System Managment
// Author: Ken Anderson
// Date:  11/26/04
// OS dependant: N/A
// Desc: Provides quick mathematical definitions.
//
// Required headers:
//----------------------------------------------------------------------------

#define C3D_PI ((float)3.141592654f)
#define C3DRadian ((float)57.295f)

#define C3DRadianToDegree(r) ((r) * (180.0f / C3D_PI))
#define C3DDegreeToRadian(d) ((d) * (C3D_PI / 180.0f))

//Change the alpha value (a Byte) of a Dword color value without impacting the color value.
#define C3DAlphaARGB(A,ARGB) {ARGB = (A << 24) | (((Dword)(ARGB << 8)) >> 8);}
//Change the color value (a Dword) of a Dword color value without impacting the alpha value.
#define C3DColorARGB(RGB,ARGB) {ARGB = (RGB | ((Dword)((Byte)(ARGB >> 24))<<24));}