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diff --git a/sourcemod/scripting/include/vector.inc b/sourcemod/scripting/include/vector.inc
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+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod (C)2004-2008 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This file is part of the SourceMod/SourcePawn SDK.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, 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, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
+#if defined _vector_included
+ #endinput
+#endif
+#define _vector_included
+
+/**
+ * Calculates a vector's length.
+ *
+ * @param vec           Vector.
+ * @param squared       If true, the result will be squared (for optimization).
+ * @return              Vector length (magnitude).
+ */
+native float GetVectorLength(const float vec[3], bool squared=false);
+
+/**
+ * Calculates the distance between two vectors.
+ *
+ * @param vec1          First vector.
+ * @param vec2          Second vector.
+ * @param squared       If true, the result will be squared (for optimization).
+ * @return              Vector distance.
+ */
+native float GetVectorDistance(const float vec1[3], const float vec2[3], bool squared=false);
+
+/**
+ * Calculates the dot product of two vectors.
+ *
+ * @param vec1          First vector.
+ * @param vec2          Second vector.
+ * @return              Dot product of the two vectors.
+ */
+native float GetVectorDotProduct(const float vec1[3], const float vec2[3]);
+
+/**
+ * Computes the cross product of two vectors.  Any input array can be the same
+ * as the output array.
+ *
+ * @param vec1          First vector.
+ * @param vec2          Second vector.
+ * @param result        Resultant vector.
+ */
+native void GetVectorCrossProduct(const float vec1[3], const float vec2[3], float result[3]);
+
+/**
+ * Normalizes a vector.  The input array can be the same as the output array.
+ *
+ * @param vec           Vector.
+ * @param result        Resultant vector.
+ * @return              Vector length.
+ */
+native float NormalizeVector(const float vec[3], float result[3]);
+
+/**
+ * Returns vectors in the direction of an angle.
+ *
+ * @param angle         Angle.
+ * @param fwd           Forward vector buffer or NULL_VECTOR.
+ * @param right         Right vector buffer or NULL_VECTOR.
+ * @param up            Up vector buffer or NULL_VECTOR.
+ */
+native void GetAngleVectors(const float angle[3], float fwd[3], float right[3], float up[3]);
+
+/**
+ * Returns angles from a vector.
+ *
+ * @param vec           Vector.
+ * @param angle         Angle buffer.
+ */
+native void GetVectorAngles(const float vec[3], float angle[3]);
+
+/**
+ * Returns direction vectors from a vector.
+ *
+ * @param vec           Vector.
+ * @param right         Right vector buffer or NULL_VECTOR.
+ * @param up            Up vector buffer or NULL_VECTOR.
+ */
+native void GetVectorVectors(const float vec[3], float right[3], float up[3]);
+
+/**
+ * Adds two vectors.  It is safe to use either input buffer as an output
+ * buffer.
+ *
+ * @param vec1          First vector.
+ * @param vec2          Second vector.
+ * @param result        Result buffer.
+ */
+stock void AddVectors(const float vec1[3], const float vec2[3], float result[3])
+{
+	result[0] = vec1[0] + vec2[0];
+	result[1] = vec1[1] + vec2[1];
+	result[2] = vec1[2] + vec2[2];
+}
+
+/**
+ * Subtracts a vector from another vector.  It is safe to use either input
+ * buffer as an output buffer.
+ *
+ * @param vec1          First vector.
+ * @param vec2          Second vector to subtract from first.
+ * @param result        Result buffer.
+ */
+stock void SubtractVectors(const float vec1[3], const float vec2[3], float result[3])
+{
+	result[0] = vec1[0] - vec2[0];
+	result[1] = vec1[1] - vec2[1];
+	result[2] = vec1[2] - vec2[2];
+}
+
+/**
+ * Scales a vector.
+ *
+ * @param vec           Vector.
+ * @param scale         Scale value.
+ */
+stock void ScaleVector(float vec[3], float scale)
+{
+	vec[0] *= scale;
+	vec[1] *= scale;
+	vec[2] *= scale;
+}
+
+/**
+ * Negatives a vector.
+ *
+ * @param vec           Vector.
+ */
+stock void NegateVector(float vec[3])
+{
+	vec[0] = -vec[0];
+	vec[1] = -vec[1];
+	vec[2] = -vec[2];
+}
+
+/**
+ * Builds a vector from two points by subtracting the points.
+ *
+ * @param pt1           First point (to be subtracted from the second).
+ * @param pt2           Second point.
+ * @param output        Output vector buffer.
+ */
+stock void MakeVectorFromPoints(const float pt1[3], const float pt2[3], float output[3])
+{
+	output[0] = pt2[0] - pt1[0];
+	output[1] = pt2[1] - pt1[1];
+	output[2] = pt2[2] - pt1[2];
+}