Mercurial > hg > early-roguelike

annotate rogue3/list.c @ 167:a0a57cf42810

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ARogue family: don't hide messages caused by moving to a new level. new_level() redraws the whole screen, including the message line, so if msg() has just been called, the message will likely not last long enough to be noticed. These cases have been changed so that msg() is called after new_level(). If a fall through a trapdoor is fatal, "You fall into a trap!" is no longer printed, but the tombstone should make things clear.
author John "Elwin" Edwards
date Mon, 29 Jun 2015 20:37:32 -0400
parents 527e2150eaf0
children 0250220d8cdd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
1 /*
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
2 * Functions for dealing with linked lists of goodies
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
3 *
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
4 * @(#)list.c 3.3 (Berkeley) 6/15/81
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
5 *
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
6 * Rogue: Exploring the Dungeons of Doom
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
7 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
8 * All rights reserved.
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
9 *
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
10 * See the file LICENSE.TXT for full copyright and licensing information.
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
11 */
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
12
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
13 #include "curses.h"
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
14 #include <stdlib.h>
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
15 #include <string.h>
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
16 #include "machdep.h"
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
17 #include "rogue.h"
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
18
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
19 /*
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
20 * detach:
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
21 * Takes an item out of whatever linked list it might be in
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
22 */
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
23
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
24 void
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
25 _detach(struct linked_list **list, struct linked_list *item)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
26 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
27 if (*list == item)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
28 *list = next(item);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
29 if (prev(item) != NULL) item->l_prev->l_next = next(item);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
30 if (next(item) != NULL) item->l_next->l_prev = prev(item);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
31 item->l_next = NULL;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
32 item->l_prev = NULL;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
33 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
34
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
35 /*
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
36 * _attach:
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
37 * add an item to the head of a list
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
38 */
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
39
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
40 void
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
41 _attach(struct linked_list **list, struct linked_list *item)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
42 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
43 if (*list != NULL)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
44 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
45 item->l_next = *list;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
46 (*list)->l_prev = item;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
47 item->l_prev = NULL;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
48 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
49 else
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
50 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
51 item->l_next = NULL;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
52 item->l_prev = NULL;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
53 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
54
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
55 *list = item;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
56 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
57
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
58 /*
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
59 * _free_list:
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
60 * Throw the whole blamed thing away
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
61 */
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
62
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
63 void
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
64 _free_list(struct linked_list **ptr)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
65 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
66 struct linked_list *item;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
67
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
68 while (*ptr != NULL)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
69 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
70 item = *ptr;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
71 *ptr = next(item);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
72 discard(item);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
73 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
74 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
75
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
76 /*
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
77 * discard:
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
78 * free up an item
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
79 */
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
80
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
81 void
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
82 discard(struct linked_list *item)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
83 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
84 total -= 2;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
85 FREE(item->l_data);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
86 FREE(item);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
87 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
88
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
89 /*
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
90 * new_item
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
91 * get a new item with a specified size
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
92 */
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
93
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
94 struct linked_list *
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
95 new_item(int size)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
96 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
97 struct linked_list *item;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
98
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
99 if ((item = (struct linked_list *) _new(sizeof *item)) == NULL)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
100 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
101 msg("Ran out of memory for header after %d items", total);
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
102 return NULL;
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
103 }
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
104
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
105 if ((item->l_data = _new(size)) == NULL)
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
106 {
527e2150eaf0 Import Rogue 3.6 from the Roguelike Restoration Project (r1490)
edwarj4
parents:
diff changeset
107 msg("Ran out of memory for data after %d items", total);