| 1 | /*
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| 2 | -----------------------------------------------------------------------------
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| 3 | This source file is part of OGRE
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| 4 | (Object-oriented Graphics Rendering Engine)
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| 5 | For the latest info, see http://www.ogre3d.org/
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| 6 |
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| 7 | Copyright 2000-2005 The OGRE Team
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| 8 | Also see acknowledgements in Readme.html
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify it under
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software
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| 12 | Foundation; either version 2 of the License, or (at your option) any later
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| 13 | version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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| 22 | http://www.gnu.org/copyleft/lesser.txt.
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| 23 | -----------------------------------------------------------------------------
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| 24 | */
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| 25 | /***************************************************************************
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| 26 | OgreOctreeSceneQuery.cpp - description
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| 27 | -------------------
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| 28 | begin : Tues July 20, 2004
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| 29 | copyright : (C) 2004by Jon Anderson
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| 30 | email : janders@users.sf.net
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| 31 |
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| 32 |
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| 33 |
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| 34 | ***************************************************************************/
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| 35 |
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| 36 | #include <OgreOctreeSceneQuery.h>
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| 37 | #include <OgreOctreeSceneManager.h>
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| 38 | #include <OgreEntity.h>
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| 39 | #include <OgreRoot.h>
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| 40 |
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| 41 | namespace Ogre
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| 42 | {
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| 43 |
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| 44 | //---------------------------------------------------------------------
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| 45 | OctreeIntersectionSceneQuery::OctreeIntersectionSceneQuery(SceneManager* creator)
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| 46 | : DefaultIntersectionSceneQuery(creator)
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| 47 | {
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| 48 |
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| 49 | }
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| 50 | //---------------------------------------------------------------------
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| 51 | OctreeIntersectionSceneQuery::~OctreeIntersectionSceneQuery()
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| 52 | {}
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| 53 | //---------------------------------------------------------------------
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| 54 | void OctreeIntersectionSceneQuery::execute(IntersectionSceneQueryListener* listener)
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| 55 | {
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| 56 | typedef std::pair<MovableObject *, MovableObject *> MovablePair;
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| 57 | typedef std::set
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| 58 | < std::pair<MovableObject *, MovableObject *> > MovableSet;
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| 59 |
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| 60 | MovableSet set;
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| 61 |
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| 62 | // Iterate over all movable types
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| 63 | Root::MovableObjectFactoryIterator factIt =
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| 64 | Root::getSingleton().getMovableObjectFactoryIterator();
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| 65 | while(factIt.hasMoreElements())
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| 66 | {
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| 67 | SceneManager::MovableObjectIterator it =
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| 68 | mParentSceneMgr->getMovableObjectIterator(
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| 69 | factIt.getNext()->getType());
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| 70 | while( it.hasMoreElements() )
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| 71 | {
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| 72 |
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| 73 | MovableObject * e = it.getNext();
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| 74 |
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| 75 | std::list < SceneNode * > list;
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| 76 | //find the nodes that intersect the AAB
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| 77 | static_cast<OctreeSceneManager*>( mParentSceneMgr ) -> findNodesIn( e->getWorldBoundingBox(), list, 0 );
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| 78 | //grab all moveables from the node that intersect...
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| 79 | std::list < SceneNode * >::iterator nit = list.begin();
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| 80 | while( nit != list.end() )
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| 81 | {
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| 82 | SceneNode::ObjectIterator oit = (*nit) -> getAttachedObjectIterator();
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| 83 | while( oit.hasMoreElements() )
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| 84 | {
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| 85 | MovableObject * m = oit.getNext();
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| 86 |
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| 87 | if( m != e &&
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| 88 | set.find( MovablePair(e,m)) == set.end() &&
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| 89 | set.find( MovablePair(m,e)) == set.end() &&
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| 90 | (m->getQueryFlags() & mQueryMask) &&
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| 91 | (m->getTypeFlags() & mQueryTypeMask) &&
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| 92 | m->isInScene() &&
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| 93 | e->getWorldBoundingBox().intersects( m->getWorldBoundingBox() ) )
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| 94 | {
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| 95 | listener -> queryResult( e, m );
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| 96 | // deal with attached objects, since they are not directly attached to nodes
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| 97 | if (m->getMovableType() == "Entity")
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| 98 | {
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| 99 | Entity* e2 = static_cast<Entity*>(m);
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| 100 | Entity::ChildObjectListIterator childIt = e2->getAttachedObjectIterator();
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| 101 | while(childIt.hasMoreElements())
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| 102 | {
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| 103 | MovableObject* c = childIt.getNext();
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| 104 | if (c->getQueryFlags() & mQueryMask &&
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| 105 | e->getWorldBoundingBox().intersects( c->getWorldBoundingBox() ))
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| 106 | {
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| 107 | listener->queryResult(e, c);
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| 108 | }
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| 109 | }
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| 110 | }
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| 111 | }
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| 112 | set.insert( MovablePair(e,m) );
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| 113 |
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| 114 | }
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| 115 | ++nit;
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| 116 | }
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| 117 |
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| 118 | }
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| 119 | }
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| 120 | }
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| 121 | /** Creates a custom Octree AAB query */
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| 122 | OctreeAxisAlignedBoxSceneQuery::OctreeAxisAlignedBoxSceneQuery(SceneManager* creator)
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| 123 | : DefaultAxisAlignedBoxSceneQuery(creator)
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| 124 | {
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| 125 | }
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| 126 | /** Deletes the custom Octree query */
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| 127 | OctreeAxisAlignedBoxSceneQuery::~OctreeAxisAlignedBoxSceneQuery()
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| 128 | {}
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| 129 |
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| 130 | /** Finds any entities that intersect the AAB for the query. */
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| 131 | void OctreeAxisAlignedBoxSceneQuery::execute(SceneQueryListener* listener)
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| 132 | {
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| 133 | std::list < SceneNode * > list;
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| 134 | //find the nodes that intersect the AAB
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| 135 | static_cast<OctreeSceneManager*>( mParentSceneMgr ) -> findNodesIn( mAABB, list, 0 );
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| 136 |
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| 137 | //grab all moveables from the node that intersect...
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| 138 | std::list < SceneNode * >::iterator it = list.begin();
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| 139 | while( it != list.end() )
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| 140 | {
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| 141 | SceneNode::ObjectIterator oit = (*it) -> getAttachedObjectIterator();
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| 142 | while( oit.hasMoreElements() )
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| 143 | {
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| 144 | MovableObject * m = oit.getNext();
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| 145 | if( (m->getQueryFlags() & mQueryMask) &&
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| 146 | (m->getTypeFlags() & mQueryTypeMask) &&
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| 147 | m->isInScene() &&
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| 148 | mAABB.intersects( m->getWorldBoundingBox() ) )
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| 149 | {
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| 150 | listener -> queryResult( m );
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| 151 | // deal with attached objects, since they are not directly attached to nodes
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| 152 | if (m->getMovableType() == "Entity")
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| 153 | {
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| 154 | Entity* e = static_cast<Entity*>(m);
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| 155 | Entity::ChildObjectListIterator childIt = e->getAttachedObjectIterator();
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| 156 | while(childIt.hasMoreElements())
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| 157 | {
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| 158 | MovableObject* c = childIt.getNext();
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| 159 | if (c->getQueryFlags() & mQueryMask)
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| 160 | {
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| 161 | listener->queryResult(c);
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| 162 | }
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| 163 | }
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| 164 | }
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| 165 | }
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| 166 |
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| 167 | }
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| 168 |
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| 169 | ++it;
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| 170 | }
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| 171 |
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| 172 | }
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| 173 | //---------------------------------------------------------------------
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| 174 | OctreeRaySceneQuery::
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| 175 | OctreeRaySceneQuery(SceneManager* creator) : DefaultRaySceneQuery(creator)
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| 176 | {
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| 177 | }
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| 178 | //---------------------------------------------------------------------
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| 179 | OctreeRaySceneQuery::~OctreeRaySceneQuery()
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| 180 | {}
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| 181 | //---------------------------------------------------------------------
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| 182 | void OctreeRaySceneQuery::execute(RaySceneQueryListener* listener)
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| 183 | {
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| 184 | std::list < SceneNode * > list;
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| 185 | //find the nodes that intersect the AAB
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| 186 | static_cast<OctreeSceneManager*>( mParentSceneMgr ) -> findNodesIn( mRay, list, 0 );
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| 187 |
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| 188 | //grab all moveables from the node that intersect...
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| 189 | std::list < SceneNode * >::iterator it = list.begin();
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| 190 | while( it != list.end() )
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| 191 | {
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| 192 | SceneNode::ObjectIterator oit = (*it) -> getAttachedObjectIterator();
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| 193 | while( oit.hasMoreElements() )
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| 194 | {
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| 195 | MovableObject * m = oit.getNext();
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| 196 | if( (m->getQueryFlags() & mQueryMask) &&
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| 197 | (m->getTypeFlags() & mQueryTypeMask) && m->isInScene() )
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| 198 | {
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| 199 | std::pair<bool, Real> result = mRay.intersects(m->getWorldBoundingBox());
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| 200 |
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| 201 | if( result.first )
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| 202 | {
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| 203 | listener -> queryResult( m, result.second );
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| 204 | // deal with attached objects, since they are not directly attached to nodes
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| 205 | if (m->getMovableType() == "Entity")
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| 206 | {
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| 207 | Entity* e = static_cast<Entity*>(m);
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| 208 | Entity::ChildObjectListIterator childIt = e->getAttachedObjectIterator();
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| 209 | while(childIt.hasMoreElements())
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| 210 | {
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| 211 | MovableObject* c = childIt.getNext();
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| 212 | if (c->getQueryFlags() & mQueryMask)
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| 213 | {
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| 214 | result = mRay.intersects(c->getWorldBoundingBox());
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| 215 | if (result.first)
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| 216 | {
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| 217 | listener->queryResult(c, result.second);
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| 218 | }
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| 219 | }
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| 220 | }
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| 221 | }
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| 222 | }
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| 223 | }
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| 224 | }
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| 225 |
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| 226 | ++it;
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| 227 | }
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| 228 |
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| 229 | }
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| 230 |
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| 231 |
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| 232 | //---------------------------------------------------------------------
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| 233 | OctreeSphereSceneQuery::
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| 234 | OctreeSphereSceneQuery(SceneManager* creator) : DefaultSphereSceneQuery(creator)
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| 235 | {
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| 236 | }
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| 237 | //---------------------------------------------------------------------
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| 238 | OctreeSphereSceneQuery::~OctreeSphereSceneQuery()
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| 239 | {}
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| 240 | //---------------------------------------------------------------------
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| 241 | void OctreeSphereSceneQuery::execute(SceneQueryListener* listener)
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| 242 | {
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| 243 | std::list < SceneNode * > list;
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| 244 | //find the nodes that intersect the AAB
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| 245 | static_cast<OctreeSceneManager*>( mParentSceneMgr ) -> findNodesIn( mSphere, list, 0 );
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| 246 |
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| 247 | //grab all moveables from the node that intersect...
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| 248 | std::list < SceneNode * >::iterator it = list.begin();
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| 249 | while( it != list.end() )
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| 250 | {
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| 251 | SceneNode::ObjectIterator oit = (*it) -> getAttachedObjectIterator();
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| 252 | while( oit.hasMoreElements() )
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| 253 | {
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| 254 | MovableObject * m = oit.getNext();
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| 255 | if( (m->getQueryFlags() & mQueryMask) &&
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| 256 | (m->getTypeFlags() & mQueryTypeMask) &&
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| 257 | m->isInScene() &&
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| 258 | mSphere.intersects( m->getWorldBoundingBox() ) )
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| 259 | {
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| 260 | listener -> queryResult( m );
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| 261 | // deal with attached objects, since they are not directly attached to nodes
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| 262 | if (m->getMovableType() == "Entity")
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| 263 | {
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| 264 | Entity* e = static_cast<Entity*>(m);
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| 265 | Entity::ChildObjectListIterator childIt = e->getAttachedObjectIterator();
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| 266 | while(childIt.hasMoreElements())
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| 267 | {
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| 268 | MovableObject* c = childIt.getNext();
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| 269 | if (c->getQueryFlags() & mQueryMask &&
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| 270 | mSphere.intersects( c->getWorldBoundingBox()))
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| 271 | {
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| 272 | listener->queryResult(c);
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| 273 | }
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| 274 | }
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| 275 | }
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| 276 | }
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| 277 | }
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| 278 |
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| 279 | ++it;
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| 280 | }
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| 281 | }
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| 282 | //---------------------------------------------------------------------
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| 283 | OctreePlaneBoundedVolumeListSceneQuery::
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| 284 | OctreePlaneBoundedVolumeListSceneQuery(SceneManager* creator)
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| 285 | : DefaultPlaneBoundedVolumeListSceneQuery(creator)
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| 286 | {
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| 287 |
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| 288 | }
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| 289 | //---------------------------------------------------------------------
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| 290 | OctreePlaneBoundedVolumeListSceneQuery::~OctreePlaneBoundedVolumeListSceneQuery()
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| 291 | {}
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| 292 | //---------------------------------------------------------------------
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| 293 | void OctreePlaneBoundedVolumeListSceneQuery::execute(SceneQueryListener* listener)
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| 294 | {
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| 295 | std::set<SceneNode*> checkedSceneNodes;
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| 296 |
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| 297 | PlaneBoundedVolumeList::iterator pi, piend;
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| 298 | piend = mVolumes.end();
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| 299 | for (pi = mVolumes.begin(); pi != piend; ++pi)
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| 300 | {
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| 301 | std::list < SceneNode * > list;
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| 302 | //find the nodes that intersect the AAB
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| 303 | static_cast<OctreeSceneManager*>( mParentSceneMgr ) -> findNodesIn( *pi, list, 0 );
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| 304 |
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| 305 | //grab all moveables from the node that intersect...
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| 306 | std::list < SceneNode * >::iterator it, itend;
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| 307 | itend = list.end();
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| 308 | for (it = list.begin(); it != itend; ++it)
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| 309 | {
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| 310 | // avoid double-check same scene node
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| 311 | if (!checkedSceneNodes.insert(*it).second)
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| 312 | continue;
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| 313 | SceneNode::ObjectIterator oit = (*it) -> getAttachedObjectIterator();
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| 314 | while( oit.hasMoreElements() )
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| 315 | {
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| 316 | MovableObject * m = oit.getNext();
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| 317 | if( (m->getQueryFlags() & mQueryMask) &&
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| 318 | (m->getTypeFlags() & mQueryTypeMask) &&
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| 319 | m->isInScene() &&
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| 320 | (*pi).intersects( m->getWorldBoundingBox() ) )
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| 321 | {
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| 322 | listener -> queryResult( m );
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| 323 | // deal with attached objects, since they are not directly attached to nodes
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| 324 | if (m->getMovableType() == "Entity")
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| 325 | {
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| 326 | Entity* e = static_cast<Entity*>(m);
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| 327 | Entity::ChildObjectListIterator childIt = e->getAttachedObjectIterator();
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| 328 | while(childIt.hasMoreElements())
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| 329 | {
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| 330 | MovableObject* c = childIt.getNext();
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| 331 | if (c->getQueryFlags() & mQueryMask &&
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| 332 | (*pi).intersects( c->getWorldBoundingBox()))
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| 333 | {
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| 334 | listener->queryResult(c);
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| 335 | }
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| 336 | }
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| 337 | }
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| 338 | }
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| 339 | }
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| 340 | }
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| 341 | }//for
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| 342 | }
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| 343 |
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| 344 |
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| 345 | }
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