154 lines
5.2 KiB
C++
154 lines
5.2 KiB
C++
// Filename: collisionTraverser.h
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// Created by: drose (16Mar02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef COLLISIONTRAVERSER_H
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#define COLLISIONTRAVERSER_H
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#include "pandabase.h"
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#include "collisionHandler.h"
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#include "collisionLevelState.h"
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#include "pointerTo.h"
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#include "pStatCollector.h"
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#include "pset.h"
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class CollisionNode;
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class CollisionRecorder;
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class CollisionVisualizer;
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class Geom;
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class NodePath;
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class CollisionEntry;
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////////////////////////////////////////////////////////////////////
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// Class : CollisionTraverser
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// Description : This class manages the traversal through the scene
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// graph to detect collisions. It holds ownership of a
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// number of collider objects, each of which is a
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// CollisionNode and an associated CollisionHandler.
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//
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// When traverse() is called, it begins at the indicated
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// root and detects all collisions with any of its
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// collider objects against nodes at or below the
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// indicated root, calling the appropriate
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// CollisionHandler for each detected collision.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA CollisionTraverser : public Namable {
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PUBLISHED:
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CollisionTraverser(const string &name = "ctrav");
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~CollisionTraverser();
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INLINE void set_respect_prev_transform(bool flag);
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INLINE bool get_respect_prev_transform() const;
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void add_collider(const NodePath &collider, CollisionHandler *handler);
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bool remove_collider(const NodePath &collider);
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bool has_collider(const NodePath &collider) const;
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int get_num_colliders() const;
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NodePath get_collider(int n) const;
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CollisionHandler *get_handler(const NodePath &collider) const;
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void clear_colliders();
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void traverse(const NodePath &root);
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void reset_prev_transform(const NodePath &root);
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#ifdef DO_COLLISION_RECORDING
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void set_recorder(CollisionRecorder *recorder);
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INLINE bool has_recorder() const;
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INLINE CollisionRecorder *get_recorder() const;
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INLINE void clear_recorder();
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CollisionVisualizer *show_collisions(const NodePath &root);
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void hide_collisions();
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#endif // DO_COLLISION_RECORDING
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void output(ostream &out) const;
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void write(ostream &out, int indent_level) const;
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private:
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typedef pvector<CollisionLevelState> LevelStates;
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void prepare_colliders(LevelStates &level_states, const NodePath &root);
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void r_traverse(CollisionLevelState &level_state);
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void compare_collider_to_node(CollisionEntry &entry,
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const GeometricBoundingVolume *from_parent_gbv,
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const GeometricBoundingVolume *from_node_gbv,
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const GeometricBoundingVolume *into_node_gbv);
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void compare_collider_to_geom_node(CollisionEntry &entry,
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const GeometricBoundingVolume *from_parent_gbv,
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const GeometricBoundingVolume *from_node_gbv,
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const GeometricBoundingVolume *into_node_gbv);
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void compare_collider_to_solid(CollisionEntry &entry,
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const GeometricBoundingVolume *from_node_gbv,
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const GeometricBoundingVolume *solid_gbv);
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void compare_collider_to_geom(CollisionEntry &entry, const Geom *geom,
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const GeometricBoundingVolume *from_node_gbv,
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const GeometricBoundingVolume *solid_gbv);
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PStatCollector &get_pass_collector(int pass);
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private:
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PT(CollisionHandler) _default_handler;
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TypeHandle _graph_type;
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class OrderedColliderDef {
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public:
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NodePath _node_path;
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bool _in_graph;
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};
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typedef pmap<NodePath, PT(CollisionHandler) > Colliders;
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Colliders _colliders;
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typedef pvector<OrderedColliderDef> OrderedColliders;
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OrderedColliders _ordered_colliders;
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typedef pmap<PT(CollisionHandler), int> Handlers;
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Handlers _handlers;
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Handlers::iterator remove_handler(Handlers::iterator hi);
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bool _respect_prev_transform;
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#ifdef DO_COLLISION_RECORDING
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CollisionRecorder *_recorder;
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NodePath _collision_visualizer_np;
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#endif // DO_COLLISION_RECORDING
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// Statistics
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static PStatCollector _collisions_pcollector;
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static PStatCollector _cnode_volume_pcollector;
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static PStatCollector _gnode_volume_pcollector;
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static PStatCollector _geom_volume_pcollector;
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PStatCollector _this_pcollector;
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typedef pvector<PStatCollector> PassCollectors;
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PassCollectors _pass_collectors;
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};
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INLINE ostream &operator << (ostream &out, const CollisionTraverser &trav) {
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trav.output(out);
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return out;
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}
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#include "collisionTraverser.I"
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#endif
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