A small helper object used in the Bullet physics broadphase benchmark. It stores a proxy, a center and extents, and moves the object each update using simple trigonometric motion then updates the broadphase AABB via IBroadphaseInterface.SetAabb.
/* * 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 class BroadphaseBenchmarkObject { public IndexedVector3 center; public IndexedVector3 extents; public BroadphaseProxy proxy; public float time; public void update(float speed, float amplitude, IBroadphaseInterface pbi) { time += speed; center.X = (float)(Math.Cos(time * 2.17f) * amplitude + Math.Sin(time) * amplitude / 2f); center.Y = (float)(Math.Cos(time * 1.38f) * amplitude + Math.Sin(time) * amplitude); center.Z = (float)(Math.Sin(time * 0.777f) * amplitude); IndexedVector3 temp1 = center - extents; IndexedVector3 temp2 = center + extents; pbi.SetAabb(proxy, ref temp1, ref temp2, null); } }