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);