2014-04-12 18:33:35 +12:00
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#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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2017-01-11 21:39:40 +13:00
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Copyright (c) 2007-2017 ShareX Team
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2014-04-12 18:33:35 +12:00
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using System;
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2014-12-11 09:25:20 +13:00
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namespace ShareX.HelpersLib
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2014-04-12 18:33:35 +12:00
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{
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public static class MathHelpers
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{
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public const float RadianPI = 57.29578f; // 180.0 / Math.PI
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public const float DegreePI = 0.01745329f; // Math.PI / 180.0
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public const float TwoPI = 6.28319f; // Math.PI * 2
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2014-07-09 10:32:36 +12:00
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private static readonly object randomLock = new object();
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private static readonly Random random = new Random();
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public static int Random(int max)
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{
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lock (randomLock)
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{
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return random.Next(max + 1);
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}
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}
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public static int Random(int min, int max)
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{
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lock (randomLock)
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{
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return random.Next(min, max + 1);
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}
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}
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2014-04-12 18:33:35 +12:00
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public static float RadianToDegree(float radian)
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{
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return radian * RadianPI;
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}
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public static float DegreeToRadian(float degree)
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{
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return degree * DegreePI;
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}
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public static Vector2 RadianToVector2(float radian)
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{
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return new Vector2((float)Math.Cos(radian), (float)Math.Sin(radian));
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}
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public static Vector2 RadianToVector2(float radian, float length)
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{
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return RadianToVector2(radian) * length;
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}
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public static Vector2 DegreeToVector2(float degree)
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{
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return RadianToVector2(DegreeToRadian(degree));
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}
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public static Vector2 DegreeToVector2(float degree, float length)
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{
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return RadianToVector2(DegreeToRadian(degree), length);
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}
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public static float Vector2ToRadian(Vector2 direction)
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{
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return (float)Math.Atan2(direction.Y, direction.X);
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}
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public static float Vector2ToDegree(Vector2 direction)
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{
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return RadianToDegree(Vector2ToRadian(direction));
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}
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public static float LookAtRadian(Vector2 pos1, Vector2 pos2)
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{
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return (float)Math.Atan2(pos2.Y - pos1.Y, pos2.X - pos1.X);
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}
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public static Vector2 LookAtVector2(Vector2 pos1, Vector2 pos2)
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{
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return RadianToVector2(LookAtRadian(pos1, pos2));
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}
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public static float LookAtDegree(Vector2 pos1, Vector2 pos2)
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{
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return RadianToDegree(LookAtRadian(pos1, pos2));
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}
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public static float Distance(Vector2 pos1, Vector2 pos2)
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{
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return (float)Math.Sqrt(Math.Pow(pos2.X - pos1.X, 2) + Math.Pow(pos2.Y - pos1.Y, 2));
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}
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public static float Lerp(float value1, float value2, float amount)
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{
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return value1 + (value2 - value1) * amount;
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}
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2017-04-02 09:56:53 +12:00
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public static Vector2 Lerp(Vector2 pos1, Vector2 pos2, float amount)
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{
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float x = Lerp(pos1.X, pos2.X, amount);
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float y = Lerp(pos1.Y, pos2.Y, amount);
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return new Vector2(x, y);
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}
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2014-04-12 18:33:35 +12:00
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}
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}
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