Panda3D
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collisionNode.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file collisionNode.h
10 * @author drose
11 * @date 2002-03-16
12 */
13
14#ifndef COLLISIONNODE_H
15#define COLLISIONNODE_H
16
17#include "pandabase.h"
18
19#include "collisionSolid.h"
20
21#include "collideMask.h"
22#include "pandaNode.h"
23
24/**
25 * A node in the scene graph that can hold any number of CollisionSolids.
26 * This may either represent a bit of static geometry in the scene that things
27 * will collide with, or an animated object twirling around in the world and
28 * running into things.
29 */
30class EXPCL_PANDA_COLLIDE CollisionNode : public PandaNode {
31PUBLISHED:
32 explicit CollisionNode(const std::string &name);
33
34protected:
35 CollisionNode(const CollisionNode &copy);
36
37public:
38 virtual ~CollisionNode();
39 virtual PandaNode *make_copy() const;
40 virtual bool preserve_name() const;
41 virtual void xform(const LMatrix4 &mat);
42 virtual PandaNode *combine_with(PandaNode *other);
43 virtual CollideMask get_legal_collide_mask() const;
44
45 virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
46 virtual bool is_renderable() const;
47 virtual bool is_collision_node() const;
48
49 virtual void output(std::ostream &out) const;
50
51PUBLISHED:
52 INLINE void set_collide_mask(CollideMask mask);
53 void set_from_collide_mask(CollideMask mask);
54 INLINE void set_into_collide_mask(CollideMask mask);
55 INLINE CollideMask get_from_collide_mask() const;
57
58 MAKE_PROPERTY(from_collide_mask, get_from_collide_mask,
59 set_from_collide_mask);
60 MAKE_PROPERTY(into_collide_mask, get_into_collide_mask,
61 set_into_collide_mask);
62
63 INLINE void clear_solids();
64 INLINE size_t get_num_solids() const;
65 INLINE CPT(CollisionSolid) get_solid(size_t n) const;
66 MAKE_SEQ(get_solids, get_num_solids, get_solid);
67 INLINE PT(CollisionSolid) modify_solid(size_t n);
68 INLINE void set_solid(size_t n, CollisionSolid *solid);
69 INLINE void insert_solid(size_t n, const CollisionSolid *solid);
70 INLINE void remove_solid(size_t n);
71 INLINE size_t add_solid(const CollisionSolid *solid);
72 MAKE_SEQ_PROPERTY(solids, get_num_solids, get_solid, set_solid, remove_solid, insert_solid);
73
74 INLINE int get_collider_sort() const;
75 INLINE void set_collider_sort(int sort);
76 MAKE_PROPERTY(collider_sort, get_collider_sort, set_collider_sort);
77
78 INLINE static CollideMask get_default_collide_mask();
79 MAKE_PROPERTY(default_collide_mask, get_default_collide_mask);
80
81protected:
82 virtual void compute_internal_bounds(CPT(BoundingVolume) &internal_bounds,
83 int &internal_vertices,
84 int pipeline_stage,
85 Thread *current_thread) const;
86
87private:
88 CPT(RenderState) get_last_pos_state();
89
90 // This data is not cycled, for now. We assume the collision traversal will
91 // take place in App only. Perhaps we will revisit this later.
92 CollideMask _from_collide_mask;
93 int _collider_sort;
94
95 typedef pvector< COWPT(CollisionSolid) > Solids;
96 Solids _solids;
97
98 friend class CollisionTraverser;
99
100public:
101 static void register_with_read_factory();
102 virtual void write_datagram(BamWriter *manager, Datagram &dg);
103 virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
104
105protected:
106 static TypedWritable *make_from_bam(const FactoryParams &params);
107 void fillin(DatagramIterator &scan, BamReader *manager);
108
109public:
110 static TypeHandle get_class_type() {
111 return _type_handle;
112 }
113 static void init_type() {
114 PandaNode::init_type();
115 register_type(_type_handle, "CollisionNode",
116 PandaNode::get_class_type());
117 }
118 virtual TypeHandle get_type() const {
119 return get_class_type();
120 }
121 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
122
123private:
124 static TypeHandle _type_handle;
125};
126
127#include "collisionNode.I"
128
129#endif
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition bamReader.h:110
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition bamWriter.h:63
This is an abstract class for any volume in any sense which can be said to define the locality of ref...
A node in the scene graph that can hold any number of CollisionSolids.
The abstract base class for all things that can collide with other things in the world,...
This class manages the traversal through the scene graph to detect collisions.
This collects together the pieces of data that are accumulated for each node while walking the scene ...
This object performs a depth-first traversal of the scene graph, with optional view-frustum culling,...
A class to retrieve the individual data elements previously stored in a Datagram.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
An instance of this class is passed to the Factory when requesting it to do its business and construc...
A basic node of the scene graph or data graph.
Definition pandaNode.h:65
virtual bool preserve_name() const
Returns true if the node's name has extrinsic meaning and must be preserved across a flatten operatio...
virtual PandaNode * combine_with(PandaNode *other)
Collapses this PandaNode with the other PandaNode, if possible, and returns a pointer to the combined...
virtual bool is_renderable() const
Returns true if there is some value to visiting this particular node during the cull traversal for an...
get_legal_collide_mask
Returns the subset of CollideMask bits that may be set for this particular type of PandaNode.
Definition pandaNode.h:265
get_into_collide_mask
Returns the "into" collide mask for this node.
Definition pandaNode.h:264
static void register_with_read_factory()
Tells the BamReader how to create objects of type PandaNode.
virtual void xform(const LMatrix4 &mat)
Transforms the contents of this PandaNode by the indicated matrix, if it means anything to do so.
virtual bool is_collision_node() const
A simple downcast check.
virtual PandaNode * make_copy() const
Returns a newly-allocated PandaNode that is a shallow copy of this one.
set_into_collide_mask
Sets the "into" CollideMask.
Definition pandaNode.h:264
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
This represents a unique collection of RenderAttrib objects that correspond to a particular renderabl...
Definition renderState.h:47
A thread; that is, a lightweight process.
Definition thread.h:46
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
Base class for objects that can be written to and read from Bam files.
virtual int complete_pointers(TypedWritable **p_list, BamReader *manager)
Receives an array of pointers, one for each time manager->read_pointer() was called in fillin().
This is our own Panda specialization on the default STL list.
Definition plist.h:35
This is our own Panda specialization on the default STL vector.
Definition pvector.h:42
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...