1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/plugins/include/vector.inc Sun Jul 06 04:49:55 2008 +0000
1.3 @@ -0,0 +1,188 @@
1.4 +/**
1.5 + * vim: set ts=4 :
1.6 + * =============================================================================
1.7 + * SourceMod (C)2004-2008 AlliedModders LLC. All rights reserved.
1.8 + * =============================================================================
1.9 + *
1.10 + * This file is part of the SourceMod/SourcePawn SDK.
1.11 + *
1.12 + * This program is free software; you can redistribute it and/or modify it under
1.13 + * the terms of the GNU General Public License, version 3.0, as published by the
1.14 + * Free Software Foundation.
1.15 + *
1.16 + * This program is distributed in the hope that it will be useful, but WITHOUT
1.17 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
1.18 + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
1.19 + * details.
1.20 + *
1.21 + * You should have received a copy of the GNU General Public License along with
1.22 + * this program. If not, see <http://www.gnu.org/licenses/>.
1.23 + *
1.24 + * As a special exception, AlliedModders LLC gives you permission to link the
1.25 + * code of this program (as well as its derivative works) to "Half-Life 2," the
1.26 + * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
1.27 + * by the Valve Corporation. You must obey the GNU General Public License in
1.28 + * all respects for all other code used. Additionally, AlliedModders LLC grants
1.29 + * this exception to all derivative works. AlliedModders LLC defines further
1.30 + * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
1.31 + * or <http://www.sourcemod.net/license.php>.
1.32 + *
1.33 + * Version: $Id$
1.34 + */
1.35 +
1.36 +#if defined _vector_included
1.37 + #endinput
1.38 +#endif
1.39 +#define _vector_included
1.40 +
1.41 +/**
1.42 + * Calculates a vector's length.
1.43 + *
1.44 + * @param vec Vector.
1.45 + * @param squared If true, the result will be squared (for optimization).
1.46 + * @return Vector length (magnitude).
1.47 + */
1.48 +native Float:GetVectorLength(const Float:vec[3], bool:squared=false);
1.49 +
1.50 +/**
1.51 + * Calculates the distance between two vectors.
1.52 + *
1.53 + * @param vec1 First vector.
1.54 + * @param vec2 Second vector.
1.55 + * @param squared If true, the result will be squared (for optimization).
1.56 + * @return Vector distance.
1.57 + */
1.58 +native Float:GetVectorDistance(const Float:vec1[3], const Float:vec2[3], bool:squared=false);
1.59 +
1.60 +/**
1.61 + * Calculates the dot product of two vectors.
1.62 + *
1.63 + * @param vec1 First vector.
1.64 + * @param vec2 Second vector.
1.65 + * @return Dot product of the two vectors.
1.66 + */
1.67 +native Float:GetVectorDotProduct(const Float:vec1[3], const Float:vec2[3]);
1.68 +
1.69 +/**
1.70 + * Computes the cross product of two vectors. Any input array can be the same
1.71 + * as the output array.
1.72 + *
1.73 + * @param vec1 First vector.
1.74 + * @param vec2 Second vector.
1.75 + * @param result Resultant vector.
1.76 + * @noreturn
1.77 + */
1.78 +native GetVectorCrossProduct(const Float:vec1[3], const Float:vec2[3], Float:result[3]);
1.79 +
1.80 +/**
1.81 + * Normalizes a vector. The input array can be the same as the output array.
1.82 + *
1.83 + * @param vec Vector.
1.84 + * @param result Resultant vector.
1.85 + * @return Vector length.
1.86 + */
1.87 +native Float:NormalizeVector(const Float:vec[3], Float:result[3]);
1.88 +
1.89 +/**
1.90 + * Returns vectors in the direction of an angle.
1.91 + *
1.92 + * @param angle Angle.
1.93 + * @param fwd Forward vector buffer or NULL_VECTOR.
1.94 + * @param right Right vector buffer or NULL_VECTOR.
1.95 + * @param up Up vector buffer or NULL_VECTOR.
1.96 + * @noreturn
1.97 + */
1.98 +native GetAngleVectors(const Float:angle[3], Float:fwd[3], Float:right[3], Float:up[3]);
1.99 +
1.100 +/**
1.101 + * Returns angles from a vector.
1.102 + *
1.103 + * @param vec Vector.
1.104 + * @param angle Angle buffer.
1.105 + * @noreturn
1.106 + */
1.107 +native GetVectorAngles(const Float:vec[3], Float:angle[3]);
1.108 +
1.109 +/**
1.110 + * Returns direction vectors from a vector.
1.111 + *
1.112 + * @param vec Vector.
1.113 + * @param right Right vector buffer or NULL_VECTOR.
1.114 + * @param up Up vector buffer or NULL_VECTOR.
1.115 + * @noreturn
1.116 + */
1.117 +native GetVectorVectors(const Float:vec[3], Float:right[3], Float:up[3]);
1.118 +
1.119 +/**
1.120 + * Adds two vectors. It is safe to use either input buffer as an output
1.121 + * buffer.
1.122 + *
1.123 + * @param vec1 First vector.
1.124 + * @param vec2 Second vector.
1.125 + * @param result Result buffer.
1.126 + * @noreturn
1.127 + */
1.128 +stock AddVectors(const Float:vec1[3], const Float:vec2[3], Float:result[3])
1.129 +{
1.130 + result[0] = vec1[0] + vec2[0];
1.131 + result[1] = vec1[1] + vec2[1];
1.132 + result[2] = vec1[2] + vec2[2];
1.133 +}
1.134 +
1.135 +/**
1.136 + * Subtracts a vector from another vector. It is safe to use either input
1.137 + * buffer as an output buffer.
1.138 + *
1.139 + * @param vec1 First vector.
1.140 + * @param vec2 Second vector to subtract from first.
1.141 + * @param result Result buffer.
1.142 + * @noreturn
1.143 + */
1.144 +stock SubtractVectors(const Float:vec1[3], const Float:vec2[3], Float:result[3])
1.145 +{
1.146 + result[0] = vec1[0] - vec2[0];
1.147 + result[1] = vec1[1] - vec2[1];
1.148 + result[2] = vec1[2] - vec2[2];
1.149 +}
1.150 +
1.151 +/**
1.152 + * Scales a vector.
1.153 + *
1.154 + * @param vec Vector.
1.155 + * @param scale Scale value.
1.156 + * @noreturn
1.157 + */
1.158 +stock ScaleVector(Float:vec[3], Float:scale)
1.159 +{
1.160 + vec[0] *= scale;
1.161 + vec[1] *= scale;
1.162 + vec[2] *= scale;
1.163 +}
1.164 +
1.165 +/**
1.166 + * Negatives a vector.
1.167 + *
1.168 + * @param vec Vector.
1.169 + * @noreturn
1.170 + */
1.171 +stock NegateVector(Float:vec[3])
1.172 +{
1.173 + vec[0] = -vec[0];
1.174 + vec[1] = -vec[1];
1.175 + vec[2] = -vec[2];
1.176 +}
1.177 +
1.178 +/**
1.179 + * Builds a vector from two points by subtracting the points.
1.180 + *
1.181 + * @param pt1 First point (to be subtracted from the second).
1.182 + * @param pt2 Second point.
1.183 + * @param output Output vector buffer.
1.184 + * @noreturn
1.185 + */
1.186 +stock MakeVectorFromPoints(const Float:pt1[3], const Float:pt2[3], Float:output[3])
1.187 +{
1.188 + output[0] = pt2[0] - pt1[0];
1.189 + output[1] = pt2[1] - pt1[1];
1.190 + output[2] = pt2[2] - pt1[2];
1.191 +}
