A small static utility class from the Bullet collision port containing simple random helpers and a timing output helper. It provides unsigned random integers, unit floats and a method that reads a Stopwatch to compute time values, intended for benchmarking broadphase performance.
/* * C# / XNA port of Bullet (c) 2011 Mark Neale <[email protected]> * * Bullet Continuous Collision Detection and Physics Library * Copyright (c) 2003-2008 Erwin Coumans http://www.bulletphysics.com/ * * This software is provided 'as-is', without any express or implied warranty. * In no event will the authors be held liable for any damages arising from * the use of this software. * * Permission is granted to anyone to use this software for any purpose, * including commercial applications, and to alter it and redistribute it * freely, subject to the following restrictions: * * 1. The origin of this software must not be misrepresented; you must not * claim that you wrote the original software. If you use this software * in a product, an acknowledgment in the product documentation would be * appreciated but is not required. * 2. Altered source versions must be plainly marked as such, and must not be * misrepresented as being the original software. * 3. This notice may not be removed or altered from any source distribution. */ // Adapted from BulletXNA 73b2e1b9: namespace isolation, no XNA rendering, one type per file. #nullable disable #pragma warning disable CS1591, CS0168, CS0219, CS0414, CS0660, CS0661, CS0659, CS0693, CS8981, CS0108, CS0114 using System; using System.Collections.Generic; using System.Diagnostics; using HumanoidRetargeter.Core.Formats.Mmd.Bullet.LinearMath; namespace HumanoidRetargeter.Core.Formats.Mmd.Bullet.BulletCollision; internal static class BroadphaseBenchmark { public static int UnsignedRand() { return UnsignedRand(BulletGlobals.RAND_MAX - 1); } public static int UnsignedRand(int range) { return (BulletGlobals.gRandom.Next(range + 1)); } public static float UnitRand() { return (UnsignedRand(16384) / 16384f); } public static void OutputTime(String name, Stopwatch sw, uint count) { ulong us = (ulong)sw.ElapsedMilliseconds; ulong ms = (us + 500) / 1000; float sec = us / (1000f * 1000f); } }