Mercurial > hg > early-roguelike

annotate srogue/passages.c @ 310:827441d05b3e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Advanced Rogue family: fix some potential buffer overflows. Some code for determining the score file location assumed that PATH_MAX would be less than 1024, which cannot be guaranteed. Advanced Rogue 5 and 7, and XRogue, have had the buffers for the file name enlarged. UltraRogue never called the functions, so the code has been deleted instead.
author John "Elwin" Edwards
date Mon, 03 May 2021 19:05:37 -0400
parents 13b482bd9e66
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
36
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
1 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
2 * Draw the connecting passages
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
3 *
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
4 * @(#)passages.c 9.0 (rdk) 7/17/84
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
5 *
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
6 * Super-Rogue
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
7 * Copyright (C) 1984 Robert D. Kindelberger
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
8 * All rights reserved.
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
9 *
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
10 * Based on "Rogue: Exploring the Dungeons of Doom"
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
12 * All rights reserved.
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
13 *
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
14 * See the file LICENSE.TXT for full copyright and licensing information.
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
15 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
16
217
94a0d9dd5ce1 Super-Rogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 183
diff changeset
17 #include <stdlib.h>
36
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
18 #include "rogue.h"
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
19 #include "rogue.ext"
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
20
217
94a0d9dd5ce1 Super-Rogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 183
diff changeset
21 void conn(int r1, int r2);
94a0d9dd5ce1 Super-Rogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 183
diff changeset
22 void door(struct room *rm, struct coord *cp);
94a0d9dd5ce1 Super-Rogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 183
diff changeset
23
36
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
24 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
25 * do_passages:
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
26 * Draw all the passages on a level.
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
27 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
28
217
94a0d9dd5ce1 Super-Rogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 183
diff changeset
29 void
94a0d9dd5ce1 Super-Rogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 183
diff changeset
30 do_passages(void)
36
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
31 {
183
7f5f5f1ba09c srogue: initialize some pointers.
John "Elwin" Edwards
parents: 36
diff changeset
32 reg struct rdes *r1, *r2 = NULL;
36
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
33 reg int i, j;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
34 reg int roomcount;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
35 static struct rdes {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
36 bool conn[MAXROOMS]; /* possible to connect to room i */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
37 bool isconn[MAXROOMS]; /* connection was made to room i */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
38 bool ingraph; /* this room in graph already? */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
39 } rdes[MAXROOMS] = {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
40 {{ 0, 1, 0, 1, 0, 0, 0, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
41 {{ 1, 0, 1, 0, 1, 0, 0, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
42 {{ 0, 1, 0, 0, 0, 1, 0, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
43 {{ 1, 0, 0, 0, 1, 0, 1, 0, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
44 {{ 0, 1, 0, 1, 0, 1, 0, 1, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
45 {{ 0, 0, 1, 0, 1, 0, 0, 0, 1 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
46 {{ 0, 0, 0, 1, 0, 0, 0, 1, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
47 {{ 0, 0, 0, 0, 1, 0, 1, 0, 1 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
48 {{ 0, 0, 0, 0, 0, 1, 0, 1, 0 },{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 },
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
49 };
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
50
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
51 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
52 * reinitialize room graph description
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
53 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
54 for (r1 = rdes; r1 < &rdes[MAXROOMS]; r1++) {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
55 for (j = 0; j < MAXROOMS; j++)
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
56 r1->isconn[j] = FALSE;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
57 r1->ingraph = FALSE;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
58 }
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
59
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
60 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
61 * starting with one room, connect it to a random adjacent room and
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
62 * then pick a new room to start with.
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
63 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
64 roomcount = 1;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
65 r1 = &rdes[rnd(MAXROOMS)];
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
66 r1->ingraph = TRUE;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
67 do {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
68 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
69 * find a room to connect with
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
70 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
71 j = 0;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
72 for (i = 0; i < MAXROOMS; i++)
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
73 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0)
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
74 r2 = &rdes[i];
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
75 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
76 * if no adjacent rooms are outside the graph, pick a new room
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
77 * to look from
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
78 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
79 if (j == 0) {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
80 do {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
81 r1 = &rdes[rnd(MAXROOMS)];
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
82 } until (r1->ingraph);
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
83 }
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
84 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
85 * otherwise, connect new room to the graph, and draw a tunnel
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
86 * to it
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
87 */
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
88 else {
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
89 r2->ingraph = TRUE;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
90 i = r1 - rdes;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
91 j = r2 - rdes;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
92 conn(i, j);
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
93 r1->isconn[j] = TRUE;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
94 r2->isconn[i] = TRUE;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
95 roomcount++;
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
96 }
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
97 } while (roomcount < MAXROOMS);
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
98
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
99 /*
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
100 * attempt to add passages to the graph a random number of times so
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
101 * that there isn't just one unique passage through it.
2128c7dc8a40 Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset