Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CTriangleBBSelector.cpp

@@ -0,0 +1,89 @@
+// 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 "CTriangleBBSelector.h"
+#include "ISceneNode.h"
+
+namespace irr
+{
+namespace scene
+{
+
+//! constructor
+CTriangleBBSelector::CTriangleBBSelector(ISceneNode* node)
+: CTriangleSelector(node)
+{
+	#ifdef _DEBUG
+	setDebugName("CTriangleBBSelector");
+	#endif
+
+	Triangles.set_used(12); // a box has 12 triangles.
+}
+
+//! Gets all triangles.
+void CTriangleBBSelector::getTriangles(core::triangle3df* triangles,
+					s32 arraySize, s32& outTriangleCount,
+					const core::matrix4* transform, bool useNodeTransform, 
+					irr::core::array<SCollisionTriangleRange>* outTriangleInfo) const
+{
+	fillTriangles();
+
+	// call parent
+	CTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount,	transform, useNodeTransform, outTriangleInfo);
+}
+
+void CTriangleBBSelector::getTriangles(core::triangle3df* triangles,
+					s32 arraySize, s32& outTriangleCount,
+					const core::aabbox3d<f32>& box,
+					const core::matrix4* transform, bool useNodeTransform, 
+					irr::core::array<SCollisionTriangleRange>* outTriangleInfo) const
+{
+	fillTriangles();
+	return CTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount, box, transform, useNodeTransform, outTriangleInfo);
+}
+
+void CTriangleBBSelector::getTriangles(core::triangle3df* triangles,
+					s32 arraySize, s32& outTriangleCount,
+					const core::line3d<f32>& line,
+					const core::matrix4* transform, bool useNodeTransform, 
+					irr::core::array<SCollisionTriangleRange>* outTriangleInfo) const
+{
+	fillTriangles();
+	return CTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount, line, transform, useNodeTransform, outTriangleInfo);
+}
+
+void CTriangleBBSelector::fillTriangles() const
+{
+	if (SceneNode)
+	{
+		// construct triangles
+		const core::aabbox3d<f32>& box = SceneNode->getBoundingBox();
+		BoundingBox = box;
+		core::vector3df edges[8];
+		box.getEdges(edges);
+
+		// yeah, not really const... Triangles are mutable
+		Triangles[0].set( edges[3], edges[0], edges[2]);
+		Triangles[1].set( edges[3], edges[1], edges[0]);
+
+		Triangles[2].set( edges[3], edges[2], edges[7]);
+		Triangles[3].set( edges[7], edges[2], edges[6]);
+
+		Triangles[4].set( edges[7], edges[6], edges[4]);
+		Triangles[5].set( edges[5], edges[7], edges[4]);
+
+		Triangles[6].set( edges[5], edges[4], edges[0]);
+		Triangles[7].set( edges[5], edges[0], edges[1]);
+
+		Triangles[8].set( edges[1], edges[3], edges[7]);
+		Triangles[9].set( edges[1], edges[7], edges[5]);
+
+		Triangles[10].set(edges[0], edges[6], edges[2]);
+		Triangles[11].set(edges[0], edges[4], edges[6]);
+	}
+}
+
+
+} // end namespace scene
+} // end namespace irr