1 |
/* |
2 |
* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 |
* |
4 |
* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 |
* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
6 |
* Copyright (©) 1992,2007 Frank Tore Johansen |
7 |
* |
8 |
* Deliantra is free software: you can redistribute it and/or modify it under |
9 |
* the terms of the Affero GNU General Public License as published by the |
10 |
* Free Software Foundation, either version 3 of the License, or (at your |
11 |
* option) any later version. |
12 |
* |
13 |
* This program is distributed in the hope that it will be useful, |
14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 |
* GNU General Public License for more details. |
17 |
* |
18 |
* You should have received a copy of the Affero GNU General Public License |
19 |
* and the GNU General Public License along with this program. If not, see |
20 |
* <http://www.gnu.org/licenses/>. |
21 |
* |
22 |
* The authors can be reached via e-mail to <support@deliantra.net> |
23 |
*/ |
24 |
|
25 |
#include <global.h> |
26 |
|
27 |
/* |
28 |
* Add a new friendly object to the linked list of friendly objects. |
29 |
* No checking to see if the object is already in the linked list is done. |
30 |
*/ |
31 |
void |
32 |
add_friendly_object (object *op) |
33 |
{ |
34 |
op->flag [FLAG_FRIENDLY] = 1; |
35 |
|
36 |
objectlink *ol; |
37 |
|
38 |
/* Add some error checking. This shouldn't happen, but the friendly |
39 |
* object list usually isn't very long, and remove_friendly_object |
40 |
* won't remove it either. Plus, it is easier to put a breakpoint in |
41 |
* the debugger here and see where the problem is happening. |
42 |
*/ |
43 |
for (ol = first_friendly_object; ol; ol = ol->next) |
44 |
{ |
45 |
if (ol->ob == op) |
46 |
{ |
47 |
LOG (llevError | logBacktrace, "add_friendly_object: Trying to add object already on list (%s)\n", &op->name); |
48 |
return; |
49 |
} |
50 |
} |
51 |
|
52 |
ol = first_friendly_object; |
53 |
first_friendly_object = get_objectlink (); |
54 |
first_friendly_object->ob = op; |
55 |
first_friendly_object->next = ol; |
56 |
} |
57 |
|
58 |
/* |
59 |
* Removes the specified object from the linked list of friendly objects. |
60 |
*/ |
61 |
void |
62 |
remove_friendly_object (object *op) |
63 |
{ |
64 |
objectlink *obj; |
65 |
|
66 |
CLEAR_FLAG (op, FLAG_FRIENDLY); |
67 |
|
68 |
if (op->type == GOLEM |
69 |
&& op->owner |
70 |
&& op->owner->contr |
71 |
&& op->owner->contr->golem == op) |
72 |
op->owner->contr->golem = 0; |
73 |
|
74 |
if (!first_friendly_object) |
75 |
{ |
76 |
LOG (llevError, "remove_friendly_object called with empty friendly list, remove ob=%s\n", &op->name); |
77 |
return; |
78 |
} |
79 |
|
80 |
/* if the first object happens to be the one, processing is pretty |
81 |
* easy. |
82 |
*/ |
83 |
if (first_friendly_object->ob == op) |
84 |
{ |
85 |
obj = first_friendly_object; |
86 |
first_friendly_object = obj->next; |
87 |
delete obj; |
88 |
} |
89 |
else |
90 |
{ |
91 |
objectlink *prev = first_friendly_object; |
92 |
|
93 |
for (obj = first_friendly_object->next; obj; obj = obj->next) |
94 |
{ |
95 |
if (obj->ob == op) |
96 |
break; |
97 |
|
98 |
prev = obj; |
99 |
} |
100 |
|
101 |
if (obj) |
102 |
{ |
103 |
prev->next = obj->next; |
104 |
delete obj; |
105 |
} |
106 |
} |
107 |
} |
108 |
|
109 |
/* New function, MSW 2000-1-14 |
110 |
* It traverses the friendly list removing objects that should not be here |
111 |
* (ie, do not have friendly flag set, freed, etc) |
112 |
*/ |
113 |
void |
114 |
clean_friendly_list (void) |
115 |
{ |
116 |
objectlink *obj, *prev = NULL, *next; |
117 |
int count = 0; |
118 |
|
119 |
for (obj = first_friendly_object; obj; obj = next) |
120 |
{ |
121 |
next = obj->next; |
122 |
if (QUERY_FLAG (obj->ob, FLAG_FREED) || !QUERY_FLAG (obj->ob, FLAG_FRIENDLY)) |
123 |
{ |
124 |
if (prev) |
125 |
prev->next = obj->next; |
126 |
else |
127 |
first_friendly_object = obj->next; |
128 |
|
129 |
count++; |
130 |
delete obj; |
131 |
} |
132 |
else |
133 |
/* If we removed the object, then prev is still valid. */ |
134 |
prev = obj; |
135 |
} |
136 |
|
137 |
if (count) |
138 |
LOG (llevDebug, "clean_friendly_list: Removed %d bogus links\n", count); |
139 |
} |
140 |
|
141 |
/* Checks if the given object is already in the friendly list or not |
142 |
* Lauwenmark - 31/07/05 |
143 |
*/ |
144 |
static int |
145 |
is_friendly (const object *op) |
146 |
{ |
147 |
for (objectlink *ol = first_friendly_object; ol; ol = ol->next) |
148 |
if (ol->ob == op) |
149 |
return 1; |
150 |
|
151 |
return 0; |
152 |
} |
153 |
|