Serious-Engine/Sources/LWSkaExporter/vecmat.h
2016-03-11 18:20:51 -06:00

39 lines
1.2 KiB
C

/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
/*
======================================================================
vecmat.h
Basic vector and matrix functions.
====================================================================== */
#include <lwtypes.h>
#define vecangle(a,b) (float)acos(dot(a,b)) /* a and b must be unit vectors */
#ifdef __cplusplus
extern "C" {
#endif //__cplusplus
float dot( LWFVector a, LWFVector b );
void cross( LWFVector a, LWFVector b, LWFVector c );
void normalize( LWFVector v );
#ifdef __cplusplus
}
#endif //__cplusplus