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collisionHandlerEvent.I
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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 collisionHandlerEvent.I
10 * @author drose
11 * @date 2002-03-16
12 */
13
14/**
15 * Orders the CollisionEntries in the set so that there is one entry for each
16 * node/node intersection detected.
17 */
18INLINE bool CollisionHandlerEvent::SortEntries::
19operator () (const PT(CollisionEntry) &a,
20 const PT(CollisionEntry) &b) const {
21 int compare_from = a->get_from_node_path().compare_to(b->get_from_node_path());
22 if (compare_from != 0) {
23 return compare_from < 0;
24 }
25 return a->get_into_node_path() < b->get_into_node_path();
26}
27
28/**
29 * The assignment operator does absolutely nothing, since this is just a
30 * function object class that stores no data. We define it just to quiet up
31 * g++ in -Wall mode.
32 */
33INLINE void CollisionHandlerEvent::SortEntries::
34operator = (const CollisionHandlerEvent::SortEntries &) {
35}
36
37/**
38 * Removes all of the previously-added in patterns. See add_in_pattern.
39 */
40INLINE void CollisionHandlerEvent::
41 clear_in_patterns() {
42 _in_patterns.clear();
43}
44
45/**
46 * Adds a pattern string to the list of events that will be generated in
47 * response to a collision. The pattern string describes how the event name
48 * will be composed. It is a string that may contain any of the following:
49 *
50 * %fn - the name of the "from" object's node %in - the name of the "into"
51 * object's node %fs - 't' if "from" is tangible, 'i' if intangible %is -
52 * 't' if "into" is tangible, 'i' if intangible %ig - 'c' if the collision is
53 * into a CollisionNode, 'g' if it is a geom.
54 *
55 * %(tag)fh - generate event only if "from" node has the indicated net tag.
56 * %(tag)fx - generate event only if "from" node does not have the indicated
57 * net tag. %(tag)ih - generate event only if "into" node has the indicated
58 * net tag. %(tag)ix - generate event only if "into" node does not have the
59 * indicated net tag. %(tag)ft - the indicated net tag value of the "from"
60 * node. %(tag)it - the indicated net tag value of the "into" node.
61 *
62 * Parentheses in the above are literal and should be included in the actual
63 * pattern.
64 *
65 * The event name will be based on the in_pattern string specified here, with
66 * all occurrences of the above strings replaced with the corresponding
67 * values.
68 *
69 * In general, the in_pattern event is thrown on the first detection of a
70 * collision between two particular nodes. In subsequent passes, as long as a
71 * collision between those two nodes continues to be detected each frame, the
72 * again_pattern is thrown. The first frame in which the collision is no
73 * longer detected, the out_pattern event is thrown.
74 */
75INLINE void CollisionHandlerEvent::
76 add_in_pattern(const std::string &in_pattern) {
77 _in_patterns.push_back(in_pattern);
78}
79
80/**
81 * This method is deprecated; it completely replaces all the in patterns that
82 * have previously been set with the indicated pattern.
83 *
84 * @deprecated Use add_in_pattern() instead.
85 */
86INLINE void CollisionHandlerEvent::
87 set_in_pattern(const std::string &in_pattern) {
88 clear_in_patterns();
89 add_in_pattern(in_pattern);
90}
91
92/**
93 * Returns the number of in pattern strings that have been added.
94 */
95INLINE int CollisionHandlerEvent::
96 get_num_in_patterns() const {
97 return _in_patterns.size();
98}
99
100/**
101 * Returns the nth pattern string that indicates how the event names are
102 * generated for each collision detected. See add_in_pattern().
103 */
104INLINE std::string CollisionHandlerEvent::
105 get_in_pattern(int n) const {
106 nassertr(n >= 0 && n < (int)_in_patterns.size(), std::string());
107 return _in_patterns[n];
108}
109
110/**
111 * Removes all of the previously-added in patterns. See add_again_pattern.
112 */
113INLINE void CollisionHandlerEvent::
114 clear_again_patterns() {
115 _again_patterns.clear();
116}
117
118/**
119 * Adds the pattern string that indicates how the event names are generated
120 * when a collision between two particular nodes is *still* detected. This
121 * event is thrown each consecutive time a collision between two particular
122 * nodes is detected, starting with the second time.
123 *
124 * In general, the in_pattern event is thrown on the first detection of a
125 * collision between two particular nodes. In subsequent passes, as long as a
126 * collision between those two nodes continues to be detected each frame, the
127 * again_pattern is thrown. The first frame in which the collision is no
128 * longer detected, the out_pattern event is thrown.
129 */
130INLINE void CollisionHandlerEvent::
131 add_again_pattern(const std::string &again_pattern) {
132 _again_patterns.push_back(again_pattern);
133}
134
135/**
136 * This method is deprecated; it completely replaces all the in patterns that
137 * have previously been set with the indicated pattern.
138 *
139 * @deprecated Use add_again_pattern() instead.
140 */
141INLINE void CollisionHandlerEvent::
142 set_again_pattern(const std::string &again_pattern) {
143 clear_again_patterns();
144 add_again_pattern(again_pattern);
145}
146
147/**
148 * Returns the number of in pattern strings that have been added.
149 */
150INLINE int CollisionHandlerEvent::
151 get_num_again_patterns() const {
152 return _again_patterns.size();
153}
154
155/**
156 * Returns the nth pattern string that indicates how the event names are
157 * generated for each collision detected. See add_again_pattern().
158 */
159INLINE std::string CollisionHandlerEvent::
160 get_again_pattern(int n) const {
161 nassertr(n >= 0 && n < (int)_again_patterns.size(), std::string());
162 return _again_patterns[n];
163}
164
165/**
166 * Removes all of the previously-added in patterns. See add_out_pattern.
167 */
168INLINE void CollisionHandlerEvent::
169 clear_out_patterns() {
170 _out_patterns.clear();
171}
172
173/**
174 * Adds the pattern string that indicates how the event names are generated
175 * when a collision between two particular nodes is *no longer* detected.
176 *
177 * In general, the in_pattern event is thrown on the first detection of a
178 * collision between two particular nodes. In subsequent passes, as long as a
179 * collision between those two nodes continues to be detected each frame, the
180 * again_pattern is thrown. The first frame in which the collision is no
181 * longer detected, the out_pattern event is thrown.
182 */
183INLINE void CollisionHandlerEvent::
184 add_out_pattern(const std::string &out_pattern) {
185 _out_patterns.push_back(out_pattern);
186}
187
188/**
189 * This method is deprecated; it completely replaces all the in patterns that
190 * have previously been set with the indicated pattern.
191 *
192 * @deprecated Use add_out_pattern() instead.
193 */
194INLINE void CollisionHandlerEvent::
195 set_out_pattern(const std::string &out_pattern) {
196 clear_out_patterns();
197 add_out_pattern(out_pattern);
198}
199
200/**
201 * Returns the number of in pattern strings that have been added.
202 */
203INLINE int CollisionHandlerEvent::
204 get_num_out_patterns() const {
205 return _out_patterns.size();
206}
207
208/**
209 * Returns the nth pattern string that indicates how the event names are
210 * generated for each collision detected. See add_out_pattern().
211 */
212INLINE std::string CollisionHandlerEvent::
213 get_out_pattern(int n) const {
214 nassertr(n >= 0 && n < (int)_out_patterns.size(), std::string());
215 return _out_patterns[n];
216}
CollisionEntry
Defines a single collision event.
Definition collisionEntry.h:42
CollisionEntry::get_from_node_path
get_from_node_path
Returns the NodePath that represents the CollisionNode that contains the CollisionSolid that triggere...
Definition collisionEntry.h:101
CollisionEntry::get_into_node_path
get_into_node_path
Returns the NodePath that represents the specific CollisionNode or GeomNode instance that was collide...
Definition collisionEntry.h:102
CollisionHandlerEvent::set_out_pattern
void set_out_pattern(const std::string &out_pattern)
This method is deprecated; it completely replaces all the in patterns that have previously been set w...
Definition collisionHandlerEvent.I:195
CollisionHandlerEvent::add_out_pattern
void add_out_pattern(const std::string &out_pattern)
Adds the pattern string that indicates how the event names are generated when a collision between two...
Definition collisionHandlerEvent.I:184
CollisionHandlerEvent::get_num_again_patterns
get_num_again_patterns
Returns the number of in pattern strings that have been added.
Definition collisionHandlerEvent.h:55
CollisionHandlerEvent::clear_again_patterns
void clear_again_patterns()
Removes all of the previously-added in patterns.
Definition collisionHandlerEvent.I:114
CollisionHandlerEvent::get_again_pattern
get_again_pattern
Returns the nth pattern string that indicates how the event names are generated for each collision de...
Definition collisionHandlerEvent.h:55
CollisionHandlerEvent::clear_out_patterns
void clear_out_patterns()
Removes all of the previously-added in patterns.
Definition collisionHandlerEvent.I:169
CollisionHandlerEvent::add_again_pattern
void add_again_pattern(const std::string &again_pattern)
Adds the pattern string that indicates how the event names are generated when a collision between two...
Definition collisionHandlerEvent.I:131
CollisionHandlerEvent::get_out_pattern
get_out_pattern
Returns the nth pattern string that indicates how the event names are generated for each collision de...
Definition collisionHandlerEvent.h:62
CollisionHandlerEvent::get_num_in_patterns
get_num_in_patterns
Returns the number of in pattern strings that have been added.
Definition collisionHandlerEvent.h:48
CollisionHandlerEvent::add_in_pattern
void add_in_pattern(const std::string &in_pattern)
Adds a pattern string to the list of events that will be generated in response to a collision.
Definition collisionHandlerEvent.I:76
CollisionHandlerEvent::clear_in_patterns
void clear_in_patterns()
Removes all of the previously-added in patterns.
Definition collisionHandlerEvent.I:41
CollisionHandlerEvent::set_in_pattern
void set_in_pattern(const std::string &in_pattern)
This method is deprecated; it completely replaces all the in patterns that have previously been set w...
Definition collisionHandlerEvent.I:87
CollisionHandlerEvent::get_in_pattern
get_in_pattern
Returns the nth pattern string that indicates how the event names are generated for each collision de...
Definition collisionHandlerEvent.h:48
CollisionHandlerEvent::set_again_pattern
void set_again_pattern(const std::string &again_pattern)
This method is deprecated; it completely replaces all the in patterns that have previously been set w...
Definition collisionHandlerEvent.I:142
CollisionHandlerEvent::get_num_out_patterns
get_num_out_patterns
Returns the number of in pattern strings that have been added.
Definition collisionHandlerEvent.h:62