dvander@2168: /** dvander@2168: * vim: set ts=4 : dvander@2168: * ============================================================================= dvander@2168: * SourceMod (C)2004-2008 AlliedModders LLC. All rights reserved. dvander@2168: * ============================================================================= dvander@2168: * dvander@2168: * This file is part of the SourceMod/SourcePawn SDK. dvander@2168: * dvander@2168: * This program is free software; you can redistribute it and/or modify it under dvander@2168: * the terms of the GNU General Public License, version 3.0, as published by the dvander@2168: * Free Software Foundation. dvander@2168: * dvander@2168: * This program is distributed in the hope that it will be useful, but WITHOUT dvander@2168: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS dvander@2168: * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more dvander@2168: * details. dvander@2168: * dvander@2168: * You should have received a copy of the GNU General Public License along with dvander@2168: * this program. If not, see . dvander@2168: * dvander@2168: * As a special exception, AlliedModders LLC gives you permission to link the dvander@2168: * code of this program (as well as its derivative works) to "Half-Life 2," the dvander@2168: * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software dvander@2168: * by the Valve Corporation. You must obey the GNU General Public License in dvander@2168: * all respects for all other code used. Additionally, AlliedModders LLC grants dvander@2168: * this exception to all derivative works. AlliedModders LLC defines further dvander@2168: * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007), dvander@2168: * or . dvander@2168: * dvander@2168: * Version: $Id$ dvander@2168: */ dvander@2168: dvander@2168: #if defined _vector_included dvander@2168: #endinput dvander@2168: #endif dvander@2168: #define _vector_included dvander@2168: dvander@2168: /** dvander@2168: * Calculates a vector's length. dvander@2168: * dvander@2168: * @param vec Vector. dvander@2168: * @param squared If true, the result will be squared (for optimization). dvander@2168: * @return Vector length (magnitude). dvander@2168: */ dvander@2168: native Float:GetVectorLength(const Float:vec[3], bool:squared=false); dvander@2168: dvander@2168: /** dvander@2168: * Calculates the distance between two vectors. dvander@2168: * dvander@2168: * @param vec1 First vector. dvander@2168: * @param vec2 Second vector. dvander@2168: * @param squared If true, the result will be squared (for optimization). dvander@2168: * @return Vector distance. dvander@2168: */ dvander@2168: native Float:GetVectorDistance(const Float:vec1[3], const Float:vec2[3], bool:squared=false); dvander@2168: dvander@2168: /** dvander@2168: * Calculates the dot product of two vectors. dvander@2168: * dvander@2168: * @param vec1 First vector. dvander@2168: * @param vec2 Second vector. dvander@2168: * @return Dot product of the two vectors. dvander@2168: */ dvander@2168: native Float:GetVectorDotProduct(const Float:vec1[3], const Float:vec2[3]); dvander@2168: dvander@2168: /** dvander@2168: * Computes the cross product of two vectors. Any input array can be the same dvander@2168: * as the output array. dvander@2168: * dvander@2168: * @param vec1 First vector. dvander@2168: * @param vec2 Second vector. dvander@2168: * @param result Resultant vector. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: native GetVectorCrossProduct(const Float:vec1[3], const Float:vec2[3], Float:result[3]); dvander@2168: dvander@2168: /** dvander@2168: * Normalizes a vector. The input array can be the same as the output array. dvander@2168: * dvander@2168: * @param vec Vector. dvander@2168: * @param result Resultant vector. dvander@2168: * @return Vector length. dvander@2168: */ dvander@2168: native Float:NormalizeVector(const Float:vec[3], Float:result[3]); dvander@2168: dvander@2168: /** dvander@2168: * Returns vectors in the direction of an angle. dvander@2168: * dvander@2168: * @param angle Angle. dvander@2168: * @param fwd Forward vector buffer or NULL_VECTOR. dvander@2168: * @param right Right vector buffer or NULL_VECTOR. dvander@2168: * @param up Up vector buffer or NULL_VECTOR. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: native GetAngleVectors(const Float:angle[3], Float:fwd[3], Float:right[3], Float:up[3]); dvander@2168: dvander@2168: /** dvander@2168: * Returns angles from a vector. dvander@2168: * dvander@2168: * @param vec Vector. dvander@2168: * @param angle Angle buffer. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: native GetVectorAngles(const Float:vec[3], Float:angle[3]); dvander@2168: dvander@2168: /** dvander@2168: * Returns direction vectors from a vector. dvander@2168: * dvander@2168: * @param vec Vector. dvander@2168: * @param right Right vector buffer or NULL_VECTOR. dvander@2168: * @param up Up vector buffer or NULL_VECTOR. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: native GetVectorVectors(const Float:vec[3], Float:right[3], Float:up[3]); dvander@2168: dvander@2168: /** dvander@2168: * Adds two vectors. It is safe to use either input buffer as an output dvander@2168: * buffer. dvander@2168: * dvander@2168: * @param vec1 First vector. dvander@2168: * @param vec2 Second vector. dvander@2168: * @param result Result buffer. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: stock AddVectors(const Float:vec1[3], const Float:vec2[3], Float:result[3]) dvander@2168: { dvander@2168: result[0] = vec1[0] + vec2[0]; dvander@2168: result[1] = vec1[1] + vec2[1]; dvander@2168: result[2] = vec1[2] + vec2[2]; dvander@2168: } dvander@2168: dvander@2168: /** dvander@2168: * Subtracts a vector from another vector. It is safe to use either input dvander@2168: * buffer as an output buffer. dvander@2168: * dvander@2168: * @param vec1 First vector. dvander@2168: * @param vec2 Second vector to subtract from first. dvander@2168: * @param result Result buffer. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: stock SubtractVectors(const Float:vec1[3], const Float:vec2[3], Float:result[3]) dvander@2168: { dvander@2168: result[0] = vec1[0] - vec2[0]; dvander@2168: result[1] = vec1[1] - vec2[1]; dvander@2168: result[2] = vec1[2] - vec2[2]; dvander@2168: } dvander@2168: dvander@2168: /** dvander@2168: * Scales a vector. dvander@2168: * dvander@2168: * @param vec Vector. dvander@2168: * @param scale Scale value. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: stock ScaleVector(Float:vec[3], Float:scale) dvander@2168: { dvander@2168: vec[0] *= scale; dvander@2168: vec[1] *= scale; dvander@2168: vec[2] *= scale; dvander@2168: } dvander@2168: dvander@2168: /** dvander@2168: * Negatives a vector. dvander@2168: * dvander@2168: * @param vec Vector. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: stock NegateVector(Float:vec[3]) dvander@2168: { dvander@2168: vec[0] = -vec[0]; dvander@2168: vec[1] = -vec[1]; dvander@2168: vec[2] = -vec[2]; dvander@2168: } dvander@2168: dvander@2168: /** dvander@2168: * Builds a vector from two points by subtracting the points. dvander@2168: * dvander@2168: * @param pt1 First point (to be subtracted from the second). dvander@2168: * @param pt2 Second point. dvander@2168: * @param output Output vector buffer. dvander@2168: * @noreturn dvander@2168: */ dvander@2168: stock MakeVectorFromPoints(const Float:pt1[3], const Float:pt2[3], Float:output[3]) dvander@2168: { dvander@2168: output[0] = pt2[0] - pt1[0]; dvander@2168: output[1] = pt2[1] - pt1[1]; dvander@2168: output[2] = pt2[2] - pt1[2]; dvander@2168: }