1 /*
2 Copyright (C) 2004 Parallel Realities
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19 */
20
21 #include "headers.h"
22
List()23 List::List()
24 {
25 objectTail = &objectHead;
26 }
27
add(GameObject * object)28 void List::add(GameObject *object)
29 {
30 objectTail->next = object;
31 objectTail = object;
32 }
33
remove(GameObject * previous,GameObject * object)34 void List::remove(GameObject *previous, GameObject *object)
35 {
36 previous->next = object->next;
37 delete object;
38 }
39
clear()40 void List::clear()
41 {
42 int count = 0;
43
44 GameObject *obj, *obj2;
45
46 for (obj = objectHead.next ; obj != NULL ; obj = obj2)
47 {
48 obj2 = obj->next;
49 obj->destroy();
50 delete obj;
51 count++;
52 }
53
54 objectHead.next = NULL;
55 objectTail = &objectHead;
56 }
57
getHead()58 GameObject *List::getHead()
59 {
60 return &objectHead;
61 }
62
getTail()63 GameObject *List::getTail()
64 {
65 return objectTail;
66 }
67
setTail(GameObject * object)68 void List::setTail(GameObject *object)
69 {
70 objectTail = object;
71 }
72
resetTail()73 void List::resetTail()
74 {
75 objectTail = &objectHead;
76 }
77