/*
 * 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.Diagnostics;
using HumanoidRetargeter.Core.Formats.Mmd.Bullet.LinearMath;
using HumanoidRetargeter.Core.Formats.Mmd.Bullet.BulletDynamics;
using System;

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

internal abstract class RayResultCallback
{
	public bool HasHit()
	{
		return (m_collisionObject != null);
	}

	public RayResultCallback()
	{
		m_closestHitFraction = 1f;
		m_collisionObject = null;
		m_collisionFilterGroup = CollisionFilterGroups.DefaultFilter;
		m_collisionFilterMask = CollisionFilterGroups.AllFilter;
		//@BP Mod
		m_flags = 0;
	}

	public virtual bool NeedsCollision(BroadphaseProxy proxy0)
	{
		bool collides = (proxy0.m_collisionFilterGroup & m_collisionFilterMask) != 0;
		collides = collides && ((m_collisionFilterGroup & proxy0.m_collisionFilterMask) != 0);
		return collides;
	}

	public abstract float AddSingleResult(ref LocalRayResult rayResult, bool normalInWorldSpace);
	public virtual void Cleanup()
	{
	}

	public float m_closestHitFraction;
	public CollisionObject m_collisionObject;
	public CollisionFilterGroups m_collisionFilterGroup;
	public CollisionFilterGroups m_collisionFilterMask;
	//@BP Mod - Custom flags, currently used to enable backface culling on tri-meshes, see btRaycastCallback
	public EFlags m_flags;
}