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Diffstat (limited to 'source/gameengine/SceneGraph/SG_Tree.h')
| -rw-r--r-- | source/gameengine/SceneGraph/SG_Tree.h | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/source/gameengine/SceneGraph/SG_Tree.h b/source/gameengine/SceneGraph/SG_Tree.h deleted file mode 100644 index b0eaea814e8..00000000000 --- a/source/gameengine/SceneGraph/SG_Tree.h +++ /dev/null @@ -1,163 +0,0 @@ -/* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. - * All rights reserved. - * - * The Original Code is: all of this file. - * - * Contributor(s): none yet. - * - * ***** END GPL LICENSE BLOCK ***** - */ - -/** \file SG_Tree.h - * \ingroup bgesg - */ - -#ifndef __SG_TREE_H__ -#define __SG_TREE_H__ - -#include "MT_Point3.h" -#include "SG_BBox.h" - -#include <set> - -class SG_Node; - - -/** - * SG_Tree. - * Holds a binary tree of SG_Nodes. - */ -class SG_Tree -{ - SG_Tree* m_left; - SG_Tree* m_right; - SG_Tree* m_parent; - SG_BBox m_bbox; - MT_Point3 m_center; - MT_Scalar m_radius; - SG_Node* m_client_object; -public: - SG_Tree(); - SG_Tree(SG_Tree* left, SG_Tree* right); - - SG_Tree(SG_Node* client); - ~SG_Tree(); - - /** - * Computes the volume of the bounding box. - */ - MT_Scalar volume() const; - - /** - * Prints the tree (for debugging.) - */ - void dump() const; - - /** - * Returns the left node. - */ - SG_Tree *Left() const; - SG_Tree *Right() const; - SG_Node *Client() const; - - SG_Tree* Find(SG_Node *node); - /** - * Gets the eight corners of this treenode's bounding box, - * in world coordinates. - * \param box: an array of 8 MT_Point3 - * \example MT_Point3 box[8]; - * treenode->get(box); - */ - void get(MT_Point3 *box) const; - /** - * Get the tree node's bounding box. - */ - const SG_BBox& BBox() const; - - /** - * Test if the given bounding box is inside this bounding box. - */ - bool inside(const MT_Point3 &point) const; - - void SetLeft(SG_Tree *left); - void SetRight(SG_Tree *right); - - MT_Point3 Center() const { return m_center; } - MT_Scalar Radius() { return m_radius; } - - //friend class SG_TreeFactory; - - struct greater - { - bool operator()(const SG_Tree *a, const SG_Tree *b) - { - return a->volume() > b->volume(); - } - }; - - - -#ifdef WITH_CXX_GUARDEDALLOC - MEM_CXX_CLASS_ALLOC_FUNCS("GE:SG_Tree") -#endif -}; - - -/** - * SG_TreeFactory generates an SG_Tree from a list of SG_Nodes. - * It joins pairs of SG_Nodes to minimize the size of the resultant - * bounding box. - * cf building an optimized Huffman tree. - * \warning O(n^3)!!! - */ -class SG_TreeFactory -{ - typedef std::multiset<SG_Tree*, SG_Tree::greater> TreeSet; - TreeSet m_objects; -public: - SG_TreeFactory(); - ~SG_TreeFactory(); - - /** - * Add a node to be added to the tree. - */ - void Add(SG_Node* client); - void Add(SG_Tree* tree); - - /** - * Build the tree from the set of nodes added by - * the Add method. - */ - SG_Tree* MakeTreeUp(); - - /** - * Build the tree from the set of nodes top down. - */ - SG_Tree* MakeTreeDown(SG_BBox &bbox); - - SG_Tree* MakeTree(); - - -#ifdef WITH_CXX_GUARDEDALLOC - MEM_CXX_CLASS_ALLOC_FUNCS("GE:SG_TreeFactory") -#endif -}; - -#endif /* __SG_BBOX_H__ */ |