A small class DbvtProxy used by the Bullet broadphase implementation. It stores a reference to a DbvtNode leaf, a pair of link slots, and a stage integer, and exposes a property that sets m_leaf and contains a debugger check when the new leaf has no parent. It derives from BroadphaseProxy and initializes link slots in the constructor.
/* * 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 DbvtProxy : BroadphaseProxy { /* Fields */ //btDbvtAabbMm aabb; public DbvtNode m_leaf; public DbvtNode leaf { get { return m_leaf; } set { m_leaf = value; if (m_leaf.parent == null) { int ibreak = 0; } } } public DbvtProxy[] links = new DbvtProxy[2]; public int stage; /* ctor */ public DbvtProxy(ref IndexedVector3 aabbMin, ref IndexedVector3 aabbMax, Object userPtr, CollisionFilterGroups collisionFilterGroup, CollisionFilterGroups collisionFilterMask) : base(ref aabbMin, ref aabbMax, userPtr, collisionFilterGroup, collisionFilterMask, null) { links[0] = links[1] = null; } }