From f9158592e1478b2013afc7041d9ed041cf2d2f4a Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Mon, 13 Jan 2014 19:47:58 +1000
Subject: Update Irrlicht to 1.8.1.  Include actual change markers this time. 
 lol

---
 .../source/Irrlicht/CMetaTriangleSelector.cpp      | 188 +++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 libraries/irrlicht-1.8.1/source/Irrlicht/CMetaTriangleSelector.cpp

(limited to 'libraries/irrlicht-1.8.1/source/Irrlicht/CMetaTriangleSelector.cpp')

diff --git a/libraries/irrlicht-1.8.1/source/Irrlicht/CMetaTriangleSelector.cpp b/libraries/irrlicht-1.8.1/source/Irrlicht/CMetaTriangleSelector.cpp
new file mode 100644
index 0000000..843fa79
--- /dev/null
+++ b/libraries/irrlicht-1.8.1/source/Irrlicht/CMetaTriangleSelector.cpp
@@ -0,0 +1,188 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#include "CMetaTriangleSelector.h"
+
+namespace irr
+{
+namespace scene
+{
+
+//! constructor
+CMetaTriangleSelector::CMetaTriangleSelector()
+{
+	#ifdef _DEBUG
+	setDebugName("CMetaTriangleSelector");
+	#endif
+}
+
+
+//! destructor
+CMetaTriangleSelector::~CMetaTriangleSelector()
+{
+	removeAllTriangleSelectors();
+}
+
+
+//! Returns amount of all available triangles in this selector
+s32 CMetaTriangleSelector::getTriangleCount() const
+{
+	s32 count = 0;
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+		count += TriangleSelectors[i]->getTriangleCount();
+
+	return count;
+}
+
+
+//! Gets all triangles.
+void CMetaTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
+		s32& outTriangleCount, const core::matrix4* transform) const
+{
+	s32 outWritten = 0;
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+	{
+		s32 t = 0;
+		TriangleSelectors[i]->getTriangles(triangles + outWritten,
+				arraySize - outWritten, t, transform);
+		outWritten += t;
+		if (outWritten==arraySize)
+			break;
+	}
+
+	outTriangleCount = outWritten;
+}
+
+
+//! Gets all triangles which lie within a specific bounding box.
+void CMetaTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
+		s32& outTriangleCount, const core::aabbox3d<f32>& box,
+		const core::matrix4* transform) const
+{
+	s32 outWritten = 0;
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+	{
+		s32 t = 0;
+		TriangleSelectors[i]->getTriangles(triangles + outWritten,
+				arraySize - outWritten, t, box, transform);
+		outWritten += t;
+		if (outWritten==arraySize)
+			break;
+	}
+
+	outTriangleCount = outWritten;
+}
+
+
+//! Gets all triangles which have or may have contact with a 3d line.
+void CMetaTriangleSelector::getTriangles(core::triangle3df* triangles, s32 arraySize,
+		s32& outTriangleCount, const core::line3d<f32>& line,
+		const core::matrix4* transform) const
+{
+	s32 outWritten = 0;
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+	{
+		s32 t = 0;
+		TriangleSelectors[i]->getTriangles(triangles + outWritten,
+				arraySize - outWritten, t, line, transform);
+		outWritten += t;
+		if (outWritten==arraySize)
+			break;
+	}
+
+	outTriangleCount = outWritten;
+}
+
+
+//! Adds a triangle selector to the collection of triangle selectors
+//! in this metaTriangleSelector.
+void CMetaTriangleSelector::addTriangleSelector(ITriangleSelector* toAdd)
+{
+	if (!toAdd)
+		return;
+
+	TriangleSelectors.push_back(toAdd);
+	toAdd->grab();
+}
+
+
+//! Removes a specific triangle selector which was added before	from the collection.
+bool CMetaTriangleSelector::removeTriangleSelector(ITriangleSelector* toRemove)
+{
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+	{
+		if (toRemove == TriangleSelectors[i])
+		{
+			TriangleSelectors[i]->drop();
+			TriangleSelectors.erase(i);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+
+//! Removes all triangle selectors from the collection.
+void CMetaTriangleSelector::removeAllTriangleSelectors()
+{
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+		TriangleSelectors[i]->drop();
+
+	TriangleSelectors.clear();
+}
+
+
+//! Return the scene node associated with a given triangle.
+ISceneNode* CMetaTriangleSelector::getSceneNodeForTriangle(u32 triangleIndex) const
+{
+	u32 totalTriangles = 0;
+
+	for (u32 i=0; i<TriangleSelectors.size(); ++i)
+	{
+		totalTriangles += TriangleSelectors[i]->getTriangleCount();
+
+		if(totalTriangles > triangleIndex)
+			return TriangleSelectors[i]->getSceneNodeForTriangle(0);
+	}
+
+	// For lack of anything more sensible, return the first selector.
+	return TriangleSelectors[0]->getSceneNodeForTriangle(0);
+}
+
+
+/* Return the number of TriangleSelectors that are inside this one, 
+Only useful for MetaTriangleSelector others return 1
+*/
+u32 CMetaTriangleSelector::getSelectorCount() const
+{
+	return TriangleSelectors.size();
+}
+
+
+/* Returns the TriangleSelector based on index based on getSelectorCount
+Only useful for MetaTriangleSelector others return 'this'
+*/
+ITriangleSelector* CMetaTriangleSelector::getSelector(u32 index)
+{
+	if (index >= TriangleSelectors.size())
+		return 0;
+	return TriangleSelectors[index];
+}
+
+
+/* Returns the TriangleSelector based on index based on getSelectorCount
+Only useful for MetaTriangleSelector others return 'this'
+*/
+const ITriangleSelector* CMetaTriangleSelector::getSelector(u32 index) const
+{
+	if (index >= TriangleSelectors.size())
+		return 0;
+	return TriangleSelectors[index];
+}
+
+
+} // end namespace scene
+} // end namespace irr
+
-- 
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