From 7028cbe09c688437910a25623098762bf0fa592d Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Mon, 28 Mar 2016 22:28:34 +1000
Subject: Move Irrlicht to src/others.

---
 .../source/Irrlicht/COctreeTriangleSelector.h      | 80 ++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/others/irrlicht-1.8.1/source/Irrlicht/COctreeTriangleSelector.h

(limited to 'src/others/irrlicht-1.8.1/source/Irrlicht/COctreeTriangleSelector.h')

diff --git a/src/others/irrlicht-1.8.1/source/Irrlicht/COctreeTriangleSelector.h b/src/others/irrlicht-1.8.1/source/Irrlicht/COctreeTriangleSelector.h
new file mode 100644
index 0000000..2445467
--- /dev/null
+++ b/src/others/irrlicht-1.8.1/source/Irrlicht/COctreeTriangleSelector.h
@@ -0,0 +1,80 @@
+// 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
+
+#ifndef __C_OCTREE_TRIANGLE_SELECTOR_H_INCLUDED__
+#define __C_OCTREE_TRIANGLE_SELECTOR_H_INCLUDED__
+
+#include "CTriangleSelector.h"
+
+namespace irr
+{
+namespace scene
+{
+
+class ISceneNode;
+
+//! Stupid triangle selector without optimization
+class COctreeTriangleSelector : public CTriangleSelector
+{
+public:
+
+	//! Constructs a selector based on a mesh
+	COctreeTriangleSelector(const IMesh* mesh, ISceneNode* node, s32 minimalPolysPerNode);
+
+	virtual ~COctreeTriangleSelector();
+
+	//! Gets all triangles which lie within a specific bounding box.
+	virtual void getTriangles(core::triangle3df* triangles, s32 arraySize, s32& outTriangleCount,
+		const core::aabbox3d<f32>& box, const core::matrix4* transform=0) const;
+
+	//! Gets all triangles which have or may have contact with a 3d line.
+	virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
+		s32& outTriangleCount, const core::line3d<f32>& line,
+		const core::matrix4* transform=0) const;
+
+private:
+
+	struct SOctreeNode
+	{
+		SOctreeNode()
+		{
+			for (u32 i=0; i!=8; ++i)
+				Child[i] = 0;
+		}
+
+		~SOctreeNode()
+		{
+			for (u32 i=0; i!=8; ++i)
+				delete Child[i];
+		}
+
+		core::array<core::triangle3df> Triangles;
+		SOctreeNode* Child[8];
+		core::aabbox3d<f32> Box;
+	};
+
+
+	void constructOctree(SOctreeNode* node);
+	void deleteEmptyNodes(SOctreeNode* node);
+	void getTrianglesFromOctree(SOctreeNode* node, s32& trianglesWritten,
+			s32 maximumSize, const core::aabbox3d<f32>& box,
+			const core::matrix4* transform,
+			core::triangle3df* triangles) const;
+
+	void getTrianglesFromOctree(SOctreeNode* node, s32& trianglesWritten,
+			s32 maximumSize, const core::line3d<f32>& line,
+			const core::matrix4* transform,
+			core::triangle3df* triangles) const;
+
+	SOctreeNode* Root;
+	s32 NodeCount;
+	s32 MinimalPolysPerNode;
+};
+
+} // end namespace scene
+} // end namespace irr
+
+
+#endif
+
-- 
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