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collisionSphere.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 collisionSphere.h
10 * @author drose
11 * @date 2000-04-24
12 */
13
14#ifndef COLLISIONSPHERE_H
15#define COLLISIONSPHERE_H
16
17#include "pandabase.h"
18#include "collisionSolid.h"
19#include "parabola.h"
20#include "collisionBox.h"
21
22/**
23 * A spherical collision volume or object.
24 */
25 class EXPCL_PANDA_COLLIDE CollisionSphere : public CollisionSolid {
26PUBLISHED:
27 INLINE explicit CollisionSphere(const LPoint3 &center, PN_stdfloat radius);
28 INLINE explicit CollisionSphere(PN_stdfloat cx, PN_stdfloat cy, PN_stdfloat cz, PN_stdfloat radius);
29
30 virtual LPoint3 get_collision_origin() const;
31
32 protected:
33 INLINE CollisionSphere();
34
35 public:
36 INLINE CollisionSphere(const CollisionSphere &copy);
37 virtual CollisionSolid *make_copy();
38
39 virtual PT(CollisionEntry)
40 test_intersection(const CollisionEntry &entry) const;
41
42 virtual void xform(const LMatrix4 &mat);
43
44 virtual PStatCollector &get_volume_pcollector();
45 virtual PStatCollector &get_test_pcollector();
46
47 virtual void output(std::ostream &out) const;
48
49 INLINE static void flush_level();
50
51PUBLISHED:
52 INLINE void set_center(const LPoint3 &center);
53 INLINE void set_center(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
54 INLINE const LPoint3 &get_center() const;
55
56 INLINE void set_radius(PN_stdfloat radius);
57 INLINE PN_stdfloat get_radius() const;
58
59PUBLISHED:
60 MAKE_PROPERTY(center, get_center, set_center);
61 MAKE_PROPERTY(radius, get_radius, set_radius);
62
63 protected:
64 virtual PT(BoundingVolume) compute_internal_bounds() const;
65
66 virtual PT(CollisionEntry)
67 test_intersection_from_sphere(const CollisionEntry &entry) const;
68 virtual PT(CollisionEntry)
69 test_intersection_from_line(const CollisionEntry &entry) const;
70 virtual PT(CollisionEntry)
71 test_intersection_from_ray(const CollisionEntry &entry) const;
72 virtual PT(CollisionEntry)
73 test_intersection_from_segment(const CollisionEntry &entry) const;
74 virtual PT(CollisionEntry)
75 test_intersection_from_capsule(const CollisionEntry &entry) const;
76 virtual PT(CollisionEntry)
77 test_intersection_from_parabola(const CollisionEntry &entry) const;
78 virtual PT(CollisionEntry)
79 test_intersection_from_box(const CollisionEntry &entry) const;
80
81 virtual void fill_viz_geom();
82
83 protected:
84 bool intersects_line(double &t1, double &t2,
85 const LPoint3 &from, const LVector3 &delta,
86 PN_stdfloat inflate_radius) const;
87 bool intersects_parabola(double &t, const LParabola &parabola,
88 double t1, double t2,
89 const LPoint3 &p1, const LPoint3 &p2) const;
90 LVertex compute_point(PN_stdfloat latitude, PN_stdfloat longitude) const;
91
92 private:
93 LPoint3 _center;
94 PN_stdfloat _radius;
95
96 static PStatCollector _volume_pcollector;
97 static PStatCollector _test_pcollector;
98
99 public:
100 static void register_with_read_factory();
101 virtual void write_datagram(BamWriter *manager, Datagram &me);
102
103 protected:
104 static TypedWritable *make_CollisionSphere(const FactoryParams &params);
105 void fillin(DatagramIterator &scan, BamReader *manager);
106
107 public:
108 static TypeHandle get_class_type() {
109 return _type_handle;
110 }
111 static void init_type() {
112 CollisionSolid::init_type();
113 register_type(_type_handle, "CollisionSphere",
114 CollisionSolid::get_class_type());
115 }
116 virtual TypeHandle get_type() const {
117 return get_class_type();
118 }
119 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
120
121 private:
122 static TypeHandle _type_handle;
123};
124
125#include "collisionSphere.I"
126
127#endif
BamReader
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition bamReader.h:110
BamWriter
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition bamWriter.h:63
BoundingVolume
This is an abstract class for any volume in any sense which can be said to define the locality of ref...
Definition boundingVolume.h:41
CollisionEntry
Defines a single collision event.
Definition collisionEntry.h:42
CollisionSolid::write_datagram
virtual void write_datagram(BamWriter *manager, Datagram &me)
Function to write the important information in the particular object to a Datagram.
Definition collisionSolid.cxx:345
CollisionSolid::get_test_pcollector
virtual PStatCollector & get_test_pcollector()
Returns a PStatCollector that is used to count the number of intersection tests made against a solid ...
Definition collisionSolid.cxx:169
CollisionSolid::xform
virtual void xform(const LMatrix4 &mat)
Transforms the solid by the indicated matrix.
Definition collisionSolid.cxx:118
CollisionSolid::get_volume_pcollector
virtual PStatCollector & get_volume_pcollector()
Returns a PStatCollector that is used to count the number of bounding volume tests made against a sol...
Definition collisionSolid.cxx:160
CollisionSphere::get_collision_origin
virtual LPoint3 get_collision_origin() const
Returns the point in space deemed to be the "origin" of the solid for collision purposes.
Definition collisionSphere.cxx:82
CollisionSphere::register_with_read_factory
static void register_with_read_factory()
Factory method to generate a CollisionSphere object.
Definition collisionSphere.cxx:745
CollisionSphere::flush_level
static void flush_level()
Flushes the PStatCollectors used during traversal.
Definition collisionSphere.I:56
DatagramIterator
A class to retrieve the individual data elements previously stored in a Datagram.
Definition datagramIterator.h:30
Datagram
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
FactoryParams
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition factoryParams.h:36
PStatCollector
A lightweight class that represents a single element that may be timed and/or counted via stats.
Definition pStatCollector.h:43
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
TypedWritable
Base class for objects that can be written to and read from Bam files.
Definition typedWritable.h:35
collisionBox.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
collisionSolid.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
collisionSphere.I
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandabase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
parabola.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition register_type.I:22