140 lines
3.1 KiB
C++
140 lines
3.1 KiB
C++
// Copyright (C) 2002-2007 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "CMetaTriangleSelector.h"
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namespace irr
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{
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namespace scene
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{
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//! constructor
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CMetaTriangleSelector::CMetaTriangleSelector()
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{
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#ifdef _DEBUG
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setDebugName("CMetaTriangleSelector");
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#endif
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}
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//! destructor
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CMetaTriangleSelector::~CMetaTriangleSelector()
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{
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removeAllTriangleSelectors();
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}
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//! Returns amount of all available triangles in this selector
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s32 CMetaTriangleSelector::getTriangleCount() const
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{
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s32 count = 0;
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for (u32 i=0; i<TriangleSelectors.size(); ++i)
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count += TriangleSelectors[i]->getTriangleCount();
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return count;
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}
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//! Gets all triangles.
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void CMetaTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
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s32& outTriangleCount, const core::matrix4* transform) const
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{
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s32 outWritten = 0;
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for (u32 i=0; i<TriangleSelectors.size(); ++i)
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{
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s32 t = 0;
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TriangleSelectors[i]->getTriangles(triangles + outWritten, arraySize - outWritten, t, transform);
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outWritten += t;
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}
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outTriangleCount = outWritten;
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}
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//! Gets all triangles which lie within a specific bounding box.
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void CMetaTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
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s32& outTriangleCount, const core::aabbox3d<f32>& box,
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const core::matrix4* transform) const
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{
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s32 outWritten = 0;
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for (u32 i=0; i<TriangleSelectors.size(); ++i)
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{
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s32 t = 0;
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TriangleSelectors[i]->getTriangles(triangles + outWritten, arraySize - outWritten, t,
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box, transform);
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outWritten += t;
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}
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outTriangleCount = outWritten;
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}
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//! Gets all triangles which have or may have contact with a 3d line.
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void CMetaTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
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s32& outTriangleCount, const core::line3d<f32>& line,
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const core::matrix4* transform) const
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{
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s32 outWritten = 0;
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for (u32 i=0; i<TriangleSelectors.size(); ++i)
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{
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s32 t = 0;
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TriangleSelectors[i]->getTriangles(triangles + outWritten, arraySize - outWritten, t,
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line, transform);
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outWritten += t;
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}
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outTriangleCount = outWritten;
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}
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//! Adds a triangle selector to the collection of triangle selectors
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//! in this metaTriangleSelector.
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void CMetaTriangleSelector::addTriangleSelector(ITriangleSelector* toAdd)
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{
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if (!toAdd)
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return;
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TriangleSelectors.push_back(toAdd);
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toAdd->grab();
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}
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//! Removes a specific triangle selector which was added before from the collection.
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bool CMetaTriangleSelector::removeTriangleSelector(ITriangleSelector* toRemove)
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{
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for (u32 i=0; i<TriangleSelectors.size(); ++i)
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if (toRemove == TriangleSelectors[i])
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{
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TriangleSelectors[i]->drop();
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TriangleSelectors.erase(i);
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return true;
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}
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return false;
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}
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//! Removes all triangle selectors from the collection.
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void CMetaTriangleSelector::removeAllTriangleSelectors()
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{
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for (u32 i=0; i<TriangleSelectors.size(); ++i)
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TriangleSelectors[i]->drop();
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TriangleSelectors.clear();
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}
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} // end namespace scene
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} // end namespace irr
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