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103 lines
2.9 KiB
103 lines
2.9 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#ifndef plDistTree_inc |
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#define plDistTree_inc |
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#include "hsTemplates.h" |
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class plDistNode |
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{ |
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public: |
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enum { |
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kIsLeaf = 0x1 |
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}; |
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UInt32 fFlags; |
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Int32 fChildren[8]; |
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Box3 fBox; |
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Box3 fFade; |
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union |
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{ |
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void* fPData; |
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UInt32 fIData; |
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}; |
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const Box3& GetBox() const { return fBox; } |
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BOOL IsLeaf() const { return 0 != (fFlags & kIsLeaf); } |
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void SetIsLeaf(BOOL on) { if(on)fFlags |= kIsLeaf; else fFlags &= ~kIsLeaf; } |
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}; |
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class plDistTree |
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{ |
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protected: |
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Int32 fRoot; |
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hsLargeArray<plDistNode> fNodes; |
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Int32 IAddNodeRecur(Int32 iNode, const Box3& box, const Box3& fade, UInt32 iData); |
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Int32 IMergeNodes(Int32 iNode, const Box3& box, const Box3& fade, UInt32 iData); |
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Int32 INextNode(const Box3& box, const Box3& fade, UInt32 iData); |
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Int32 IGetChild(const Box3& parent, const Box3& child) const; |
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inline BOOL IBoxesClear(const Box3& box0, const Box3& box1) const; |
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inline BOOL IFadesClear(const Box3& fade0, const Box3& fade1) const; |
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BOOL IBox0ContainsBox1(const Box3& box0, const Box3& box1, const Box3& fade0, const Box3& fade1) const; |
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BOOL IBoxClearRecur(Int32 iNode, const Box3& box, const Box3& fade) const; |
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BOOL IPointClearRecur(Int32 iNode, const Point3& pt, const Box3& fade) const; |
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void IHarvestBoxRecur(Int32 iNode, const Box3& box, Tab<Int32>& out) const; |
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public: |
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plDistTree(); |
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virtual ~plDistTree(); |
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void Reset(); |
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void AddBoxPData(const Box3& box, const Box3& fade, void* pData=nil) { AddBoxIData(box, fade, UInt32(pData)); } |
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void AddBoxIData(const Box3& box, const Box3& fade, UInt32 iData=0); |
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void AddBox(const Box3& box, const Box3& fade=NonFade()) { AddBoxIData(box, fade, 0); } |
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BOOL BoxClear(const Box3& box, const Box3& fade) const; |
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BOOL PointClear(const Point3& pt, const Box3& fade) const; |
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BOOL IsEmpty() const { return fRoot < 0; } |
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static Box3 NonFade() { return Box3(Point3(0,0,0), Point3(0,0,0)); } |
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void HarvestBox(const Box3& box, Tab<Int32>& out) const; |
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const plDistNode& GetBox(Int32 i) const { return fNodes[i]; } |
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}; |
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#endif // plDistTree_inc
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