1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* File: dgnevent.cc
* Summary: General dungeon events.
* Created by: dshaligram on Sat Jul 21 12:17:29 2007 UTC
*/
#include "AppHdr.h"
#include "dgnevent.h"
#include "coord.h"
#include <algorithm>
dgn_event_dispatcher dungeon_events;
void dgn_event_dispatcher::clear()
{
global_event_mask = 0;
listeners.clear();
for (int y = 0; y < GYM; ++y)
for (int x = 0; x < GXM; ++x)
grid_triggers[x][y].reset(NULL);
}
void dgn_event_dispatcher::clear_listeners_at(const coord_def &pos)
{
grid_triggers[pos.x][pos.y].reset(NULL);
}
void dgn_event_dispatcher::move_listeners(
const coord_def &from, const coord_def &to)
{
// Any existing listeners at to will be discarded. YHBW.
grid_triggers[to.x][to.y] = grid_triggers[from.x][from.y];
}
bool dgn_event_dispatcher::has_listeners_at(const coord_def &pos) const
{
return (grid_triggers[pos.x][pos.y].get());
}
bool dgn_event_dispatcher::fire_vetoable_position_event(
dgn_event_type et, const coord_def &pos)
{
const dgn_event event(et, pos);
return fire_vetoable_position_event(event, pos);
}
bool dgn_event_dispatcher::fire_vetoable_position_event(
const dgn_event &et, const coord_def &pos)
{
dgn_square_alarm *alarm = grid_triggers[pos.x][pos.y].get();
if (alarm && (alarm->eventmask & et.type))
{
dgn_square_alarm alcopy(*alarm);
for (std::list<dgn_event_listener*>::iterator
i = alcopy.listeners.begin();
i != alcopy.listeners.end(); ++i)
{
if (!(*i)->notify_dgn_event(et))
return (false);
}
}
return (true);
}
void dgn_event_dispatcher::fire_position_event(
dgn_event_type event, const coord_def &pos)
{
const dgn_event et(event, pos);
fire_position_event(et, pos);
}
void dgn_event_dispatcher::fire_position_event(
const dgn_event &et, const coord_def &pos)
{
dgn_square_alarm *alarm = grid_triggers[pos.x][pos.y].get();
if (alarm && (alarm->eventmask & et.type))
{
dgn_square_alarm alcopy = *alarm;
for (std::list<dgn_event_listener*>::iterator
i = alcopy.listeners.begin();
i != alcopy.listeners.end(); ++i)
{
(*i)->notify_dgn_event(et);
}
}
}
void dgn_event_dispatcher::fire_event(const dgn_event &e)
{
if (global_event_mask & e.type)
{
std::list<dgn_listener_def> lcopy = listeners;
for (std::list<dgn_listener_def>::iterator i = lcopy.begin();
i != lcopy.end(); ++i)
{
if (i->eventmask & e.type)
i->listener->notify_dgn_event(e);
}
}
}
void dgn_event_dispatcher::fire_event(dgn_event_type et)
{
fire_event(dgn_event(et));
}
void dgn_event_dispatcher::register_listener(unsigned mask,
dgn_event_listener *listener,
const coord_def &pos)
{
if (in_bounds(pos))
register_listener_at(mask, pos, listener);
else
{
global_event_mask |= mask;
for (std::list<dgn_listener_def>::iterator i = listeners.begin();
i != listeners.end(); ++i)
{
if (i->listener == listener)
{
i->eventmask |= mask;
return;
}
}
listeners.push_back(dgn_listener_def(mask, listener));
}
}
void dgn_event_dispatcher::register_listener_at(unsigned mask,
const coord_def &c,
dgn_event_listener *listener)
{
if (!grid_triggers[c.x][c.y].get())
grid_triggers[c.x][c.y].reset(new dgn_square_alarm);
dgn_square_alarm *alarm = grid_triggers[c.x][c.y].get();
alarm->eventmask |= mask;
if (std::find(alarm->listeners.begin(), alarm->listeners.end(),
listener) == alarm->listeners.end())
alarm->listeners.push_back(listener);
}
void dgn_event_dispatcher::remove_listener(dgn_event_listener *listener,
const coord_def &pos)
{
if (in_bounds(pos))
remove_listener_at(pos, listener);
else
{
for (std::list<dgn_listener_def>::iterator i = listeners.begin();
i != listeners.end(); ++i)
{
if (i->listener == listener)
{
listeners.erase(i);
return;
}
}
}
}
void dgn_event_dispatcher::remove_listener_at(const coord_def &pos,
dgn_event_listener *listener)
{
if (dgn_square_alarm *alarm = grid_triggers[pos.x][pos.y].get())
{
std::list<dgn_event_listener*>::iterator i =
std::find(alarm->listeners.begin(), alarm->listeners.end(),
listener);
if (i != alarm->listeners.end())
alarm->listeners.erase(i);
}
}
/////////////////////////////////////////////////////////////////////////////
// dgn_event_listener
dgn_event_listener::~dgn_event_listener()
{
}
|
