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o3de/Code/Editor/Util/KDTree.h
T
Steve Pham b4a2edec6a Final update copyright headers to reference license files at the repo root (#1693)
* Final update copyright headers to reference license files at the repo root

Signed-off-by: spham <spham@amazon.com>

* Fix copyright validator unit tests to support the stale O3DE header scenario

Signed-off-by: spham <spham@amazon.com>
2021-06-30 19:51:55 -07:00

57 lines
1.6 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#ifndef CRYINCLUDE_EDITOR_UTIL_KDTREE_H
#define CRYINCLUDE_EDITOR_UTIL_KDTREE_H
#pragma once
struct IStatObj;
class KDTreeNode;
class CKDTree
{
public:
CKDTree();
~CKDTree();
bool Build(IStatObj* pStatObj);
bool FindNearestVertex(const Vec3& raySrc, const Vec3& rayDir, float vVertexBoxSize, const Vec3& localCameraPos, Vec3& outPos, Vec3& vOutHitPosOnCube) const;
void GetPenetratedBoxes(const Vec3& raySrc, const Vec3& rayDir, std::vector<AABB>& outBoxes);
enum ESplitAxis
{
eSA_X = 0,
eSA_Y,
eSA_Z,
eSA_Invalid
};
struct SStatObj
{
Matrix34 tm;
_smart_ptr<IStatObj> pStatObj;
};
private:
void BuildRecursively(KDTreeNode* pNode, const AABB& boundbox, std::vector<uint32>& indices) const;
bool FindNearestVertexRecursively(KDTreeNode* pNode, const Vec3& raySrc, const Vec3& rayDir, float vVertexBoxSize, const Vec3& localCameraPos, Vec3& outPos, Vec3& vOutHitPosOnCube) const;
void GetPenetratedBoxesRecursively(KDTreeNode* pNode, const Vec3& raySrc, const Vec3& rayDir, std::vector<AABB>& outBoxes);
void ConstructStatObjList(IStatObj* pStatObj, const Matrix34& matParent);
static const int s_MinimumVertexSizeInLeafNode = 4;
private:
KDTreeNode* m_pRootNode;
std::vector<SStatObj> m_StatObjectList;
};
#endif // CRYINCLUDE_EDITOR_UTIL_KDTREE_H