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collisionSegment.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 collisionSegment.h
10 * @author drose
11 * @date 2001-01-30
12 */
13
14#ifndef COLLISIONSEGMENT_H
15#define COLLISIONSEGMENT_H
16
17#include "pandabase.h"
18
19#include "collisionSolid.h"
20
21class LensNode;
22
23/**
24 * A finite line segment, with two specific endpoints but no thickness. It's
25 * similar to a CollisionRay, except it does not continue to infinity.
26 *
27 * It does have an ordering, from point A to point B. If more than a single
28 * point of the segment is intersecting a solid, the reported intersection
29 * point is generally the closest on the segment to point A.
30 */
31class EXPCL_PANDA_COLLIDE CollisionSegment : public CollisionSolid {
32PUBLISHED:
33 INLINE CollisionSegment();
34 INLINE explicit CollisionSegment(const LPoint3 &a, const LPoint3 &db);
35 INLINE explicit CollisionSegment(PN_stdfloat ax, PN_stdfloat ay, PN_stdfloat az,
36 PN_stdfloat bx, PN_stdfloat by, PN_stdfloat bz);
37
38 virtual LPoint3 get_collision_origin() const;
39
40public:
41 INLINE CollisionSegment(const CollisionSegment &copy);
42 virtual CollisionSolid *make_copy();
43
44 virtual PT(CollisionEntry)
45 test_intersection(const CollisionEntry &entry) const;
46
47 virtual void xform(const LMatrix4 &mat);
48
49 virtual void output(std::ostream &out) const;
50
51PUBLISHED:
52 INLINE void set_point_a(const LPoint3 &a);
53 INLINE void set_point_a(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
54 INLINE const LPoint3 &get_point_a() const;
55
56 INLINE void set_point_b(const LPoint3 &b);
57 INLINE void set_point_b(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
58 INLINE const LPoint3 &get_point_b() const;
59
60 bool set_from_lens(LensNode *camera, const LPoint2 &point);
61 INLINE bool set_from_lens(LensNode *camera, PN_stdfloat px, PN_stdfloat py);
62
63PUBLISHED:
64 MAKE_PROPERTY(point_a, get_point_a, set_point_a);
65 MAKE_PROPERTY(point_b, get_point_b, set_point_b);
66
67protected:
68 virtual PT(BoundingVolume) compute_internal_bounds() const;
69
70protected:
71 virtual void fill_viz_geom();
72
73private:
74 LPoint3 _a, _b;
75
76public:
77 static void register_with_read_factory();
78 virtual void write_datagram(BamWriter *manager, Datagram &dg);
79
80protected:
81 static TypedWritable *make_from_bam(const FactoryParams &params);
82 void fillin(DatagramIterator &scan, BamReader *manager);
83
84public:
85 static TypeHandle get_class_type() {
86 return _type_handle;
87 }
88 static void init_type() {
89 CollisionSolid::init_type();
90 register_type(_type_handle, "CollisionSegment",
91 CollisionSolid::get_class_type());
92 }
93 virtual TypeHandle get_type() const {
94 return get_class_type();
95 }
96 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
97
98private:
99 static TypeHandle _type_handle;
100};
101
102#include "collisionSegment.I"
103
104#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...
Defines a single collision event.
A finite line segment, with two specific endpoints but no thickness.
The abstract base class for all things that can collide with other things in the world,...
virtual void write_datagram(BamWriter *manager, Datagram &me)
Function to write the important information in the particular object to a Datagram.
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 node that contains a Lens.
Definition lensNode.h:29
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.
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(),...