2 Copyright (C) 1999-2007 id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
34 typedef vec_t vec3_t[3];
41 #define Q_PI 3.14159265358979323846
43 extern vec3_t vec3_origin;
45 #define EQUAL_EPSILON 0.001
47 qboolean VectorCompare( vec3_t v1, vec3_t v2 );
49 #define DotProduct( x,y ) ( x[0] * y[0] + x[1] * y[1] + x[2] * y[2] )
50 #define VectorSubtract( a,b,c ) {c[0] = a[0] - b[0]; c[1] = a[1] - b[1]; c[2] = a[2] - b[2]; }
51 #define VectorAdd( a,b,c ) {c[0] = a[0] + b[0]; c[1] = a[1] + b[1]; c[2] = a[2] + b[2]; }
52 #define VectorCopy( a,b ) {b[0] = a[0]; b[1] = a[1]; b[2] = a[2]; }
53 #define VectorScale( a,b,c ) {c[0] = b * a[0]; c[1] = b * a[1]; c[2] = b * a[2]; }
54 #define VectorClear( x ) {x[0] = x[1] = x[2] = 0; }
55 #define VectorNegate( x ) {x[0] = -x[0]; x[1] = -x[1]; x[2] = -x[2]; }
57 vec_t Q_rint( vec_t in );
58 vec_t _DotProduct( vec3_t v1, vec3_t v2 );
59 void _VectorSubtract( vec3_t va, vec3_t vb, vec3_t out );
60 void _VectorAdd( vec3_t va, vec3_t vb, vec3_t out );
61 void _VectorCopy( vec3_t in, vec3_t out );
62 void _VectorScale( vec3_t v, vec_t scale, vec3_t out );
64 double VectorLength( vec3_t v );
66 void VectorMA( vec3_t va, double scale, vec3_t vb, vec3_t vc );
68 void CrossProduct( vec3_t v1, vec3_t v2, vec3_t cross );
69 vec_t VectorNormalize( vec3_t in, vec3_t out );
70 vec_t ColorNormalize( vec3_t in, vec3_t out );
71 void VectorInverse( vec3_t v );
73 void ClearBounds( vec3_t mins, vec3_t maxs );
74 void AddPointToBounds( vec3_t v, vec3_t mins, vec3_t maxs );