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

A small data container used by the Bullet BVH implementation. It stores quantized axis-aligned bounding box min/max (UShortVector3), the root node index of a subtree and the subtree size, and can copy the AABB from a QuantizedBvhNode.

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.Diagnostics;
using HumanoidRetargeter.Core.Formats.Mmd.Bullet.LinearMath;

namespace HumanoidRetargeter.Core.Formats.Mmd.Bullet.BulletCollision;

internal class BvhSubtreeInfo
{
	//12 bytes - hah yeah right...
	public UShortVector3 m_quantizedAabbMin;
	public UShortVector3 m_quantizedAabbMax;
	//4 bytes, points to the root of the subtree
	public int m_rootNodeIndex;
	//4 bytes
	public int m_subtreeSize;
	//int			m_padding[3];
	public void SetAabbFromQuantizeNode(QuantizedBvhNode quantizedNode)
	{
		m_quantizedAabbMin = quantizedNode.m_quantizedAabbMin;
		m_quantizedAabbMax = quantizedNode.m_quantizedAabbMax;
	}
}