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physxForceFieldShapeGroup.cxx
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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 physxForceFieldShapeGroup.cxx
10 * @author enn0x
11 * @date 2009-11-11
12 */
13
14#include "physxForceFieldShapeGroup.h"
15#include "physxForceFieldShapeGroupDesc.h"
16#include "physxForceField.h"
17#include "physxForceFieldShape.h"
18
19 TypeHandle PhysxForceFieldShapeGroup::_type_handle;
20
21/**
22 *
23 */
24 void PhysxForceFieldShapeGroup::
25link(NxForceFieldShapeGroup *groupPtr) {
26
27 // Link self
28 _ptr = groupPtr;
29 _ptr->userData = this;
30 _error_type = ET_ok;
31
32 set_name(groupPtr->getName());
33
34 PhysxScene *scene = (PhysxScene *)_ptr->getScene().userData;
35 scene->_ffgroups.add(this);
36
37 // Link shapes
38 NxU32 nShapes = _ptr->getNbShapes();
39 _ptr->resetShapesIterator();
40 for (NxU32 i=0; i < nShapes; i++) {
41 NxForceFieldShape *shapePtr = _ptr->getNextShape();
42 PhysxForceFieldShape *shape = PhysxForceFieldShape::factory(shapePtr->getType());
43 shape->link(shapePtr);
44 }
45}
46
47/**
48 *
49 */
50 void PhysxForceFieldShapeGroup::
51unlink() {
52
53 // Unlink shapes
54 NxU32 nShapes = _ptr->getNbShapes();
55 _ptr->resetShapesIterator();
56 for (NxU32 i=0; i < nShapes; i++) {
57 NxForceFieldShape *shapePtr = _ptr->getNextShape();
58 PhysxForceFieldShape *shape = (PhysxForceFieldShape *)shapePtr->userData;
59 shape->unlink();
60 }
61
62 // Unlink self
63 _ptr->userData = nullptr;
64 _error_type = ET_released;
65
66 PhysxScene *scene = (PhysxScene *)_ptr->getScene().userData;
67 scene->_ffgroups.remove(this);
68}
69
70/**
71 * Releases the force field shape.
72 */
73 void PhysxForceFieldShapeGroup::
74 release() {
75
76 nassertv(_error_type == ET_ok);
77
78 unlink();
79 _ptr->getScene().releaseForceFieldShapeGroup(*_ptr);
80 _ptr = nullptr;
81}
82
83/**
84 * Returns the scene that owns this force field shape group.
85 */
86 PhysxScene *PhysxForceFieldShapeGroup::
87 get_scene() const {
88
89 nassertr(_error_type == ET_ok, nullptr);
90 return (PhysxScene *)(_ptr->getScene().userData);
91}
92
93/**
94 * Returns the force field of this group if this is an include group. If not
95 * NULL will be returned.
96 */
97 PhysxForceField *PhysxForceFieldShapeGroup::
98 get_force_field() const {
99
100 nassertr(_error_type == ET_ok, nullptr);
101
102 if (_ptr->getForceField() == nullptr) {
103 return nullptr;
104 }
105 else {
106 return (PhysxForceField *)(_ptr->getForceField()->userData);
107 }
108}
109
110/**
111 * Saves the state of the force field shape group object to a descriptor.
112 */
113 void PhysxForceFieldShapeGroup::
114 save_to_desc(PhysxForceFieldShapeGroupDesc &groupDesc) const {
115
116 nassertv(_error_type == ET_ok);
117 _ptr->saveToDesc(groupDesc._desc);
118}
119
120/**
121 * Sets a name string for the object that can be retrieved with get_name().
122 * This is for debugging and is not used by the engine.
123 */
124 void PhysxForceFieldShapeGroup::
125 set_name(const char *name) {
126
127 nassertv(_error_type == ET_ok);
128
129 _name = name ? name : "";
130 _ptr->setName(_name.c_str());
131}
132
133/**
134 * Returns the name string.
135 */
136 const char *PhysxForceFieldShapeGroup::
137 get_name() const {
138
139 nassertr(_error_type == ET_ok, "");
140 return _ptr->getName();
141}
142
143/**
144 * Returns the number of shapes assigned to the force field shape group.
145 */
146 unsigned int PhysxForceFieldShapeGroup::
147 get_num_shapes() const {
148
149 nassertr(_error_type == ET_ok, -1);
150
151 return _ptr->getNbShapes();
152}
153
154/**
155 * Creates a force field shape and adds it to the group.
156 */
157 PhysxForceFieldShape *PhysxForceFieldShapeGroup::
158 create_shape(PhysxForceFieldShapeDesc &desc) {
159
160 nassertr(_error_type == ET_ok, nullptr);
161 nassertr(desc.is_valid(),nullptr);
162
163 PhysxForceFieldShape *shape = PhysxForceFieldShape::factory(desc.ptr()->getType());
164 nassertr(shape, nullptr);
165
166 NxForceFieldShape *shapePtr = _ptr->createShape(*desc.ptr());
167 nassertr(shapePtr, nullptr);
168
169 shape->link(shapePtr);
170
171 return shape;
172}
173
174/**
175 * Returns the i-th shape in the force field group.
176 */
177 PhysxForceFieldShape *PhysxForceFieldShapeGroup::
178 get_shape(unsigned int idx) const {
179
180 nassertr(_error_type == ET_ok, nullptr);
181 nassertr_always(idx < _ptr->getNbShapes(), nullptr);
182
183 NxForceFieldShape *shapePtr;
184 NxU32 nShapes = _ptr->getNbShapes();
185
186 _ptr->resetShapesIterator();
187 for (NxU32 i=0; i <= idx; i++) {
188 shapePtr = _ptr->getNextShape();
189 }
190
191 return (PhysxForceFieldShape *)(shapePtr->userData);
192}
PhysxForceFieldShapeDesc
Abstract base class for descriptors for force field shapes descriptors.
Definition physxForceFieldShapeDesc.h:25
PhysxForceFieldShapeGroupDesc
Definition physxForceFieldShapeGroupDesc.h:27
PhysxForceFieldShapeGroup::get_shape
get_shape
Returns the i-th shape in the force field group.
Definition physxForceFieldShapeGroup.h:51
PhysxForceFieldShapeGroup::create_shape
PhysxForceFieldShape * create_shape(PhysxForceFieldShapeDesc &desc)
Creates a force field shape and adds it to the group.
Definition physxForceFieldShapeGroup.cxx:158
PhysxForceFieldShapeGroup::get_num_shapes
get_num_shapes
Returns the number of shapes assigned to the force field shape group.
Definition physxForceFieldShapeGroup.h:51
PhysxForceFieldShapeGroup::save_to_desc
void save_to_desc(PhysxForceFieldShapeGroupDesc &groupDesc) const
Saves the state of the force field shape group object to a descriptor.
Definition physxForceFieldShapeGroup.cxx:114
PhysxForceFieldShapeGroup::get_force_field
PhysxForceField * get_force_field() const
Returns the force field of this group if this is an include group.
Definition physxForceFieldShapeGroup.cxx:98
PhysxForceFieldShapeGroup::get_name
const char * get_name() const
Returns the name string.
Definition physxForceFieldShapeGroup.cxx:137
PhysxForceFieldShapeGroup::get_scene
PhysxScene * get_scene() const
Returns the scene that owns this force field shape group.
Definition physxForceFieldShapeGroup.cxx:87
PhysxForceFieldShapeGroup::set_name
void set_name(const char *name)
Sets a name string for the object that can be retrieved with get_name().
Definition physxForceFieldShapeGroup.cxx:125
PhysxForceFieldShapeGroup::release
void release()
Releases the force field shape.
Definition physxForceFieldShapeGroup.cxx:74
PhysxForceFieldShape
Abstract base class for force field shapes.
Definition physxForceFieldShape.h:31
PhysxForceField
A force field effector.
Definition physxForceField.h:33
PhysxScene
A scene is a collection of bodies, constraints, and effectors which can interact.
Definition physxScene.h:69
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
physxForceFieldShapeGroupDesc.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
physxForceFieldShapeGroup.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
physxForceFieldShape.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
physxForceField.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.