vladislavbelov
ffc4a56b9f
Fixes #6846 Differential Revision: https://code.wildfiregames.com/D5185 This was SVN commit r27965.
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/* Copyright (C) 2011 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "ModelAbstract.h"
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#include "ps/CLogger.h"
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const CBoundingBoxOriented& CModelAbstract::GetSelectionBox()
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{
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if (!m_SelectionBoxValid)
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{
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CalcSelectionBox();
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m_SelectionBoxValid = true;
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}
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return m_SelectionBox;
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}
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void CModelAbstract::CalcSelectionBox()
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{
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if (m_CustomSelectionShape)
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{
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// custom shape
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switch(m_CustomSelectionShape->m_Type)
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{
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case CustomSelectionShape::BOX:
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{
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// create object-space bounds according to the information in the descriptor, and transform them to world-space.
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// the box is centered on the X and Z axes, but extends from 0 to its height on the Y axis.
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const float width = m_CustomSelectionShape->m_Size0;
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const float depth = m_CustomSelectionShape->m_Size1;
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const float height = m_CustomSelectionShape->m_Height;
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CBoundingBoxAligned bounds;
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bounds += CVector3D(-width/2.f, 0, -depth/2.f);
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bounds += CVector3D( width/2.f, height, depth/2.f);
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bounds.Transform(GetTransform(), m_SelectionBox);
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}
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break;
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case CustomSelectionShape::CYLINDER:
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{
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// TODO: unimplemented
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m_SelectionBox.SetEmpty();
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LOGWARNING("[ModelAbstract] TODO: Cylinder selection boxes are not yet implemented. Use BOX or BOUNDS selection shapes instead.");
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}
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break;
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default:
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{
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m_SelectionBox.SetEmpty();
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//LOGWARNING("[ModelAbstract] Unrecognized selection shape type: %ld", m_CustomSelectionShape->m_Type);
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debug_warn("[ModelAbstract] Unrecognized selection shape type");
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}
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break;
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}
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}
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else
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{
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// standard method
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// Get the object-space bounds that should be used to construct this model (and its children)'s selection box
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CBoundingBoxAligned objBounds = GetObjectSelectionBoundsRec();
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if (objBounds.IsEmpty())
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{
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m_SelectionBox.SetEmpty(); // model does not wish to participate in selection
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return;
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}
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// Prevent the bounding box from extending through the terrain; clip the lower plane at Y=0 in object space.
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if (objBounds[1].Y > 0.f) // should always be the case, unless the models are defined really weirdly
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objBounds[0].Y = std::max(0.f, objBounds[0].Y);
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// transform object-space axis-aligned bounds to world-space arbitrary-aligned box
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objBounds.Transform(GetTransform(), m_SelectionBox);
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}
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}
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