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175 lines
6.5 KiB
175 lines
6.5 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 plSpaceTree_inc |
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#define plSpaceTree_inc |
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#include "hsTemplates.h" |
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#include "hsBounds.h" |
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#include "pnFactory/plCreatable.h" |
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#include "hsBitVector.h" |
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class hsStream; |
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class hsResMgr; |
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class plVolumeIsect; |
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class plSpaceTreeNode |
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{ |
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public: |
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enum { |
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kNone = 0x0, |
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kIsLeaf = 0x1, |
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kDirty = 0x2, |
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kDisabled = 0x4, |
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kEmpty = 0x8, |
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kEnabledTemp = 0x10 |
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}; |
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hsBounds3Ext fWorldBounds; |
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UInt16 fFlags; // mostly for alignment; |
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Int16 fParent; |
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union { |
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Int16 fChildren[2]; // Children are actually in same array as parent |
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Int16 fLeafIndex; |
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}; |
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Int16 GetChild(int w) const { hsAssert(!(fFlags & kIsLeaf), "Getting Child of leaf node"); return fChildren[w]; } |
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Int16 GetParent() const { return fParent; } |
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Int16 GetLeaf() const { hsAssert(fFlags & kIsLeaf, "Getting leaf idx off interior node"); return fLeafIndex; } |
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hsBool IsLeaf() const { return 0 != (fFlags & kIsLeaf); } |
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const hsBounds3Ext& GetWorldBounds() const { return fWorldBounds; } |
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// Kind of hate this. Would like to blast the whole thing in, but |
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// the bounds are a real class. |
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void Read(hsStream* s); |
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void Write(hsStream* s); |
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}; |
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class plSpaceTree : public plCreatable |
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{ |
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public: |
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enum plHarvestFlags { |
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kNone = 0x0, |
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kSortBackToFront = 0x1, |
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kSortFrontToBack = 0x2 |
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}; |
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enum { |
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kRootParent = -1 |
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}; |
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private: |
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hsTArray<plSpaceTreeNode> fTree; |
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const hsBitVector* fCache; |
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Int16 fRoot; |
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Int16 fNumLeaves; |
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UInt16 fHarvestFlags; |
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mutable plVolumeIsect* fCullFunc; |
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hsPoint3 fViewPos; |
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void IRefreshRecur(Int16 which); |
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void IHarvestAndCullLeaves(const plSpaceTreeNode& subRoot, hsTArray<Int16>& list) const; |
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void IHarvestLeaves(const plSpaceTreeNode& subRoot, hsTArray<Int16>& list) const; |
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void IHarvestAndCullLeaves(const plSpaceTreeNode& subRoot, hsBitVector& totList, hsBitVector& list) const; |
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void IHarvestLeaves(const plSpaceTreeNode& subRoot, hsBitVector& totList, hsBitVector& list) const; |
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void IHarvestLevel(Int16 subRoot, int level, int currLevel, hsTArray<Int16>& list) const; |
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void IHarvestAndCullEnabledLeaves(Int16 subRoot, const hsBitVector& cache, hsTArray<Int16>& list) const; |
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void IHarvestEnabledLeaves(Int16 subRoot, const hsBitVector& cache, hsTArray<Int16>& list) const; |
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void IHarvestEnabledLeaves(Int16 subIdx, const hsBitVector& cache, hsBitVector& totList, hsBitVector& list) const; |
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void IEnableLeaf(Int16 idx, hsBitVector& cache) const; |
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public: |
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plSpaceTree(); |
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virtual ~plSpaceTree(); |
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CLASSNAME_REGISTER( plSpaceTree ); |
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GETINTERFACE_ANY( plSpaceTree, plCreatable ); |
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void SetViewPos(const hsPoint3& p) { fViewPos = p; } |
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const hsPoint3& GetViewPos() const { return fViewPos; } |
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const plSpaceTreeNode& GetNode(Int16 w) const { return fTree[w]; } |
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Int16 GetRoot() const { return fRoot; } |
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hsBool IsRoot(Int16 w) const { return fRoot == w; } |
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hsBool IsLeaf(Int16 w) const { return GetNode(w).IsLeaf(); } |
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void HarvestLeaves(hsBitVector& totList, hsBitVector& list) const; |
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void HarvestLeaves(hsBitVector& list) const; |
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void HarvestLeaves(plVolumeIsect* cullFunc, hsBitVector& list) const; |
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void HarvestLeaves(Int16 subRoot, hsBitVector& list) const; |
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void HarvestLeaves(Int16 subRoot, hsBitVector& totList, hsBitVector& list) const; |
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void HarvestLeaves(hsTArray<Int16>& list) const; |
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void HarvestLeaves(plVolumeIsect* cullFunc, hsTArray<Int16>& list) const; |
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void HarvestLeaves(Int16 subRoot, hsTArray<Int16>& list) const; |
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void EnableLeaf(Int16 idx, hsBitVector& cache) const; |
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void EnableLeaves(const hsTArray<Int16>& list, hsBitVector& cache) const; |
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void HarvestEnabledLeaves(plVolumeIsect* cullFunc, const hsBitVector& cache, hsTArray<Int16>& list) const; |
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void SetCache(const hsBitVector* cache) { fCache = cache; } |
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void BitVectorToList(hsTArray<Int16>& list, const hsBitVector& bitVec) const; |
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void SetHarvestFlags(plHarvestFlags f) { fHarvestFlags = f; } |
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UInt16 GetHarvestFlags() const { return fHarvestFlags; } |
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UInt16 HasLeafFlag(Int16 w, UInt16 f) const { return GetNode(w).fFlags & f; } |
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void SetLeafFlag(Int16 w, UInt16 f, hsBool on=true); |
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void ClearLeafFlag(Int16 w, UInt16 f); |
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void ClearTreeFlag(UInt16 f); |
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void SetTreeFlag(UInt16 f, hsBool on=true); |
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hsBool IsDisabled(UInt16 w) const { return (GetNode(w).fFlags & plSpaceTreeNode::kDisabled) || (fCache && !fCache->IsBitSet(w)); } |
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// Should GetWorldBounds check and refresh if needed? |
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const hsBounds3Ext& GetWorldBounds() const { return GetNode(GetRoot()).fWorldBounds; } |
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void MoveLeaf(Int16 idx, const hsBounds3Ext& newWorldBnd); |
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void Refresh(); |
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hsBool IsEmpty() const { return 0 != (GetNode(GetRoot()).fFlags & plSpaceTreeNode::kEmpty); } |
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hsBool IsDirty() const { return 0 != (GetNode(GetRoot()).fFlags & plSpaceTreeNode::kDirty); } |
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void MakeDirty() { fTree[GetRoot()].fFlags |= plSpaceTreeNode::kDirty; } |
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Int16 GetNumLeaves() const { return fNumLeaves; } |
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virtual void Read(hsStream* s, hsResMgr* mgr); |
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virtual void Write(hsStream* s, hsResMgr* mgr); |
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void HarvestLevel(int level, hsTArray<Int16>& list) const; |
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friend class plSpaceTreeMaker; |
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}; |
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#endif // plSpaceTree_inc
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