Panda3D
fogAttrib.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 fogAttrib.h
10  * @author drose
11  * @date 2002-03-14
12  */
13 
14 #ifndef FOGATTRIB_H
15 #define FOGATTRIB_H
16 
17 #include "pandabase.h"
18 
19 #include "renderAttrib.h"
20 #include "fog.h"
21 
22 /**
23  * Applies a Fog to the geometry at and below this node.
24  */
25 class EXPCL_PANDA_PGRAPH FogAttrib : public RenderAttrib {
26 private:
27  INLINE FogAttrib();
28 
29 PUBLISHED:
30  static CPT(RenderAttrib) make(Fog *fog);
31  static CPT(RenderAttrib) make_off();
32  static CPT(RenderAttrib) make_default();
33 
34  INLINE bool is_off() const;
35  INLINE Fog *get_fog() const;
36 
37 PUBLISHED:
38  MAKE_PROPERTY(fog, get_fog);
39 
40 public:
41  virtual void output(std::ostream &out) const;
42 
43 protected:
44  virtual int compare_to_impl(const RenderAttrib *other) const;
45  virtual size_t get_hash_impl() const;
46 
47 private:
48  PT(Fog) _fog;
49 
50 PUBLISHED:
51  static int get_class_slot() {
52  return _attrib_slot;
53  }
54  virtual int get_slot() const {
55  return get_class_slot();
56  }
57  MAKE_PROPERTY(class_slot, get_class_slot);
58 
59 public:
60  static void register_with_read_factory();
61  virtual void write_datagram(BamWriter *manager, Datagram &dg);
62  virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
63 
64 protected:
65  static TypedWritable *make_from_bam(const FactoryParams &params);
66  void fillin(DatagramIterator &scan, BamReader *manager);
67 
68 public:
69  static TypeHandle get_class_type() {
70  return _type_handle;
71  }
72  static void init_type() {
73  RenderAttrib::init_type();
74  register_type(_type_handle, "FogAttrib",
75  RenderAttrib::get_class_type());
76  _attrib_slot = register_slot(_type_handle, 100, new FogAttrib);
77  }
78  virtual TypeHandle get_type() const {
79  return get_class_type();
80  }
81  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
82 
83 private:
84  static TypeHandle _type_handle;
85  static int _attrib_slot;
86 };
87 
88 #include "fogAttrib.I"
89 
90 #endif
This is the base class for a number of render attributes (other than transform) that may be set on sc...
Definition: renderAttrib.h:51
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition: bamReader.h:110
Base class for objects that can be written to and read from Bam files.
Definition: typedWritable.h:35
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
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition: bamWriter.h:63
This is our own Panda specialization on the default STL list.
Definition: plist.h:35
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
Applies a Fog to the geometry at and below this node.
Definition: fogAttrib.h:25
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
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().
static int register_slot(TypeHandle type_handle, int sort, RenderAttrib *default_attrib)
Adds the indicated TypeHandle to the registry, if it is not there already, and returns a unique slot ...
Definition: renderAttrib.I:101
Specifies how atmospheric fog effects are applied to geometry.
Definition: fog.h:41
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition: factoryParams.h:36
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
A class to retrieve the individual data elements previously stored in a Datagram.
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition: datagram.h:38