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97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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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 Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "std3d.h"
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#include "nel/3d/vegetable_instance_group.h"
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namespace NL3D
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{
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// ***************************************************************************
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CVegetableInstanceGroup::CVegetableInstanceGroup()
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{
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_ClipOwner= NULL;
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_SortOwner= NULL;
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_HasZSortPassInstances= false;
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_TriangleQuadrantOrderNumTriangles= 0;
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_ULPrec= this;
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_ULNext= this;
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_ULNumVertices= 0;
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}
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// ***************************************************************************
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CVegetableInstanceGroup::~CVegetableInstanceGroup()
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{
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unlinkUL();
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}
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// ***************************************************************************
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void CVegetableInstanceGroup::linkBeforeUL(CVegetableInstanceGroup *igNext)
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{
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nlassert(igNext);
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// first, unlink others from me. NB: works even if _ULPrec==_ULNext==this.
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_ULNext->_ULPrec= _ULPrec;
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_ULPrec->_ULNext= _ULNext;
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// link to igNext.
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_ULNext= igNext;
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_ULPrec= igNext->_ULPrec;
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// link others to me.
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_ULNext->_ULPrec= this;
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_ULPrec->_ULNext= this;
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}
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// ***************************************************************************
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void CVegetableInstanceGroup::unlinkUL()
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{
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// unlink others from me. NB: works even if _ULPrec==_ULNext==this.
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_ULNext->_ULPrec= _ULPrec;
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_ULPrec->_ULNext= _ULNext;
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// reset
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_ULPrec= this;
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_ULNext= this;
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}
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// ***************************************************************************
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CVegetableInstanceGroupReserve::CVegetableInstanceGroupReserve()
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{
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}
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// ***************************************************************************
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bool CVegetableInstanceGroup::isEmpty() const
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{
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for(uint i=0; i<NL3D_VEGETABLE_NRDRPASS; i++)
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{
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const CVegetableRdrPass &vegetRdrPass= _RdrPass[i];
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// If some triangles to render, the ig is not empty
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if(vegetRdrPass.NTriangles != 0)
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return false;
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}
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// for all pass, no triangles to render => the ig is empty.
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return true;
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}
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} // NL3D
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