Code/HumanoidRetargeter/Core/Formats/Mmd/Bullet/BulletCollision/BroadphaseBenchmarkObject.cs

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.

Native Interop
/*
 * 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);
	}
}