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eggNode.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 eggNode.h
10 * @author drose
11 * @date 1999-01-16
12 */
13
14#ifndef EGGNODE_H
15#define EGGNODE_H
16
17#include "pandabase.h"
18
19#include "eggNamedObject.h"
20
21#include "typedObject.h"
22#include "lmatrix.h"
23#include "pointerTo.h"
24#include "referenceCount.h"
25#include "extension.h"
26
27class EggGroupNode;
28class EggRenderMode;
30
31/**
32 * A base class for things that may be directly added into the egg hierarchy.
33 * This includes groups, joints, polygons, vertex pools, etc., but does not
34 * include things like vertices.
35 */
36class EXPCL_PANDA_EGG EggNode : public EggNamedObject {
37PUBLISHED:
38 INLINE explicit EggNode(const std::string &name = "");
39 INLINE EggNode(const EggNode &copy);
40 INLINE EggNode &operator = (const EggNode &copy);
41
42 INLINE EggGroupNode *get_parent() const;
43 INLINE int get_depth() const;
44 INLINE bool is_under_instance() const;
45 INLINE bool is_under_transform() const;
46 INLINE bool is_local_coord() const;
47
48 MAKE_PROPERTY(parent, get_parent);
49 MAKE_PROPERTY(depth, get_depth);
50
51 INLINE const LMatrix4d &get_vertex_frame() const;
52 INLINE const LMatrix4d &get_node_frame() const;
53 INLINE const LMatrix4d &get_vertex_frame_inv() const;
54 INLINE const LMatrix4d &get_node_frame_inv() const;
55 INLINE const LMatrix4d &get_vertex_to_node() const;
56 INLINE const LMatrix4d &get_node_to_vertex() const;
57
58 INLINE const LMatrix4d *get_vertex_frame_ptr() const;
59 INLINE const LMatrix4d *get_node_frame_ptr() const;
60 INLINE const LMatrix4d *get_vertex_frame_inv_ptr() const;
61 INLINE const LMatrix4d *get_node_frame_inv_ptr() const;
62 INLINE const LMatrix4d *get_vertex_to_node_ptr() const;
63 INLINE const LMatrix4d *get_node_to_vertex_ptr() const;
64
65 INLINE void transform(const LMatrix4d &mat);
66 INLINE void transform_vertices_only(const LMatrix4d &mat);
67 INLINE void flatten_transforms();
68 void apply_texmats();
69
70 int rename_node(vector_string strip_prefix);
71
72 virtual bool is_joint() const;
73 virtual bool is_anim_matrix() const;
74
75 virtual EggRenderMode *determine_alpha_mode();
76 virtual EggRenderMode *determine_depth_write_mode();
77 virtual EggRenderMode *determine_depth_test_mode();
78 virtual EggRenderMode *determine_visibility_mode();
79 virtual EggRenderMode *determine_depth_offset();
80 virtual EggRenderMode *determine_draw_order();
81 virtual EggRenderMode *determine_bin();
82 virtual bool determine_indexed();
83 virtual bool determine_decal();
84
85 virtual void write(std::ostream &out, int indent_level) const=0;
86 bool parse_egg(const std::string &egg_syntax);
87
88#ifdef _DEBUG
89 void test_under_integrity() const;
90#else
91 void test_under_integrity() const { }
92#endif // _DEBUG
93
94 EXTENSION(PyObject *__reduce__() const);
95
96protected:
97 enum UnderFlags {
98 UF_under_instance = 0x001,
99 UF_under_transform = 0x002,
100 UF_local_coord = 0x004,
101 };
102
103 virtual bool egg_start_parse_body();
104
105 virtual void update_under(int depth_offset);
106 virtual void adjust_under();
107 virtual bool has_primitives() const;
108 virtual bool joint_has_primitives() const;
109 virtual bool has_normals() const;
110
111 virtual void r_transform(const LMatrix4d &mat, const LMatrix4d &inv,
112 CoordinateSystem to_cs);
113 virtual void r_transform_vertices(const LMatrix4d &mat);
114 virtual void r_mark_coordsys(CoordinateSystem cs);
115 virtual void r_flatten_transforms();
116 virtual void r_apply_texmats(EggTextureCollection &textures);
117
118 // These members are updated automatically by prepare_add_child(),
119 // prepare_remove_child(), and update_under(). Other functions shouldn't be
120 // fiddling with them.
121
122 EggGroupNode *_parent;
123 int _depth;
124 int _under_flags;
125
126 typedef RefCountObj<LMatrix4d> MatrixFrame;
127
128 PT(MatrixFrame) _vertex_frame;
129 PT(MatrixFrame) _node_frame;
130 PT(MatrixFrame) _vertex_frame_inv;
131 PT(MatrixFrame) _node_frame_inv;
132 PT(MatrixFrame) _vertex_to_node;
133 PT(MatrixFrame) _node_to_vertex;
134
135
136public:
137
138 static TypeHandle get_class_type() {
139 return _type_handle;
140 }
141 static void init_type() {
142 EggNamedObject::init_type();
143 register_type(_type_handle, "EggNode",
144 EggNamedObject::get_class_type());
145 MatrixFrame::init_type();
146 }
147 virtual TypeHandle get_type() const {
148 return get_class_type();
149 }
150 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
151
152private:
153 static TypeHandle _type_handle;
154
155 friend class EggGroupNode;
156 friend class EggTable;
157};
158
159#include "eggNode.I"
160
161#endif
A base class for nodes in the hierarchy that are not leaf nodes.
This is a fairly low-level base class–any egg object that has a name.
A base class for things that may be directly added into the egg hierarchy.
Definition eggNode.h:36
This class stores miscellaneous rendering properties that is associated with geometry,...
This corresponds to a.
Definition eggTable.h:27
This is a collection of textures by TRef name.
Another kind of proxy, similar to RefCountProxy.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
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.
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(),...
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.