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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
/*
* The Mana World Server
* Copyright 2006 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* The Mana World is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#ifndef _TMW_SERVER_MAPCOMPOSITE_
#define _TMW_SERVER_MAPCOMPOSITE_
#include <vector>
class Map;
class MapComposite;
class MovingObject;
class Object;
class Player;
class Point;
class Rectangle;
class Thing;
/**
* Ordered sets of zones of a map.
*/
typedef std::vector< unsigned > MapRegion;
/**
* Part of the map.
*/
struct MapZone
{
unsigned short nbPlayers, nbMovingObjects;
/**
* Objects present in this zone.
* Players are stored first, then the remaining MovingObjects, then the
* remaining Objects.
*/
std::vector< Object * > objects;
/**
* Destinations of the objects that left this zone.
* This is necessary in order to have an accurate iterator around moving
* objects.
*/
MapRegion destinations;
MapZone(): nbPlayers(0), nbMovingObjects(0) {}
void insert(Object *);
void remove(Object *);
};
/**
* Iterates through the zones of a region of the map.
*/
struct ZoneIterator
{
MapRegion region; /**< Zones to visit. Empty means the entire map. */
unsigned pos;
MapZone *current;
MapComposite const *map;
ZoneIterator(MapRegion const &, MapComposite const *);
void operator++();
MapZone *operator*() const { return current; }
operator bool() const { return current; }
};
/**
* Iterates through the Players of a region.
*/
struct PlayerIterator
{
ZoneIterator iterator;
unsigned short pos;
Player *current;
PlayerIterator(ZoneIterator const &);
void operator++();
Player *operator*() const { return current; }
operator bool() const { return iterator; }
};
/**
* Iterates through the MovingObjects of a region.
*/
struct MovingObjectIterator
{
ZoneIterator iterator;
unsigned short pos;
MovingObject *current;
MovingObjectIterator(ZoneIterator const &);
void operator++();
MovingObject *operator*() const { return current; }
operator bool() const { return iterator; }
};
/**
* Iterates through the non-moving Objects of a region.
*/
struct FixedObjectIterator
{
ZoneIterator iterator;
unsigned short pos;
Object *current;
FixedObjectIterator(ZoneIterator const &);
void operator++();
Object *operator*() const { return current; }
operator bool() const { return iterator; }
};
/**
* Iterates through the Objects of a region.
*/
struct ObjectIterator
{
ZoneIterator iterator;
unsigned short pos;
Object *current;
ObjectIterator(ZoneIterator const &);
void operator++();
Object *operator*() const { return current; }
operator bool() const { return iterator; }
};
/**
* Pool of public IDs for MovingObjects on a map.
*/
struct ObjectBucket
{
static int const int_bitsize = sizeof(unsigned) * 8;
unsigned bitmap[256 / int_bitsize]; /**< Bitmap of free locations. */
short free; /**< Number of empty places. */
short next_object; /**< Next object to look at. */
MovingObject *objects[256];
ObjectBucket();
int allocate();
void deallocate(int);
};
/**
* Combined map/entity structure.
*/
class MapComposite {
public:
MapComposite(Map *);
~MapComposite();
Map *getMap() const
{ return map; }
/**
* Inserts an object on the map. Sets its public ID if relevant.
*/
bool insert(Thing *);
/**
* Removes an object from the map.
*/
void remove(Thing *);
/**
* Updates zones of every moving beings.
*/
void update();
/**
* Gets an object given its ID.
*/
MovingObject *getObjectByID(int) const;
/**
* Gets an iterator on the objects of the whole map.
*/
ZoneIterator getWholeMapIterator() const
{ return ZoneIterator(MapRegion(), this); }
/**
* Gets an iterator on the objects inside a given rectangle.
*/
ZoneIterator getInsideRectangleIterator(Rectangle const &) const;
/**
* Gets an iterator on the objects around a given object.
*/
ZoneIterator getAroundObjectIterator(Object *, int radius) const;
/**
* Gets an iterator on the objects around the old and new positions of
* a player (including the ones that were but are now elsewhere).
*/
ZoneIterator getAroundPlayerIterator(MovingObject *, int radius) const;
/**
* Gets everything related to the map.
*/
std::vector< Thing * > const &getEverything() const
{ return things; }
private:
MapComposite(MapComposite const &);
/**
* Allocates a unique ID for a moving object on this map.
*/
bool allocate(MovingObject *);
/**
* Deallocates an ID.
*/
void deallocate(MovingObject *);
/**
* Fills a region of zones within the range of a point.
*/
void fillRegion(MapRegion &, Point const &, int) const;
/**
* Fills a region of zones inside a rectangle.
*/
void fillRegion(MapRegion &, Rectangle const &) const;
Map *map; /**< Actual map. */
/**
* Things (items, players, monsters, etc) located on the map.
*/
std::vector< Thing * > things;
/**
* Buckets of MovingObjects located on the map, referenced by ID.
*/
ObjectBucket *buckets[256];
int last_bucket; /**< Last bucket acted upon. */
/**
* Partition of the Objects, depending on their position on the map.
*/
MapZone *zones;
unsigned short mapWidth; /**< Width with respect to zones. */
unsigned short mapHeight; /**< Height with respect to zones. */
friend class ZoneIterator;
};
#endif
|
