annotate xrogue/chase.c @ 317:aab761616489 default tip

Rearrange some Autoconf files. Autoconf was failing to detect install-sh at the top level and needed some explicit directions. It also wants config.guess and config.sub to be provided too. A few other macros have also been updated.
author John "Elwin" Edwards
date Tue, 05 Sep 2023 20:05:24 -0400
parents e52a8a7ad4c5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
1 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
2 chase.c - Code for one object to chase another
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
3
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
4 XRogue: Expeditions into the Dungeons of Doom
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
5 Copyright (C) 1991 Robert Pietkivitch
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
6 All rights reserved.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
7
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
8 Based on "Advanced Rogue"
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
10 All rights reserved.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
11
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
12 Based on "Rogue: Exploring the Dungeons of Doom"
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
14 All rights reserved.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
15
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
16 See the file LICENSE.TXT for full copyright and licensing information.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
17 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
18
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
19 #include <ctype.h>
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
20 #include <curses.h>
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
21 #include <limits.h>
220
f54901b9c39b XRogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 133
diff changeset
22 #include <stdlib.h>
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
23 #include "rogue.h"
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
24
220
f54901b9c39b XRogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 133
diff changeset
25 bool straight_shot(int ery, int erx, int eey, int eex, coord *shooting);
f54901b9c39b XRogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 133
diff changeset
26
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
27 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
28 * Canblink checks if the monster can teleport (blink). If so, it will
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
29 * try to blink the monster next to the player.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
30 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
31
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
32 bool
220
f54901b9c39b XRogue: convert to ANSI-style function declarations.
John "Elwin" Edwards
parents: 133
diff changeset
33 can_blink(struct thing *tp)
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
34 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
35 register int y, x, index=9;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
36 coord tryp; /* To hold the coordinates for use in diag_ok */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
37 bool spots[9], found_one=FALSE;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
38
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
39 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
40 * First, can the monster even blink? And if so, there is only a 50%
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
41 * chance that it will do so. And it won't blink if it is running or
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
42 * held.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
43 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
44 if (off(*tp, CANBLINK) || (on(*tp, ISHELD)) ||
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
45 on(*tp, ISFLEE) ||
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
46 tp->t_action == A_FREEZE ||
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
47 (rnd(12) < 6)) return(FALSE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
48
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
49
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
50 /* Initialize the spots as illegal */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
51 do {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
52 spots[--index] = FALSE;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
53 } while (index > 0);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
54
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
55 /* Find a suitable spot next to the player */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
56 for (y=hero.y-1; y<hero.y+2; y++)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
57 for (x=hero.x-1; x<hero.x+2; x++, index++) {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
58 /* Make sure x coordinate is in range and that we are
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
59 * not at the player's position
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
60 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
61 if (x<0 || x >= cols || index == 4) continue;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
62
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
63 /* Is it OK to move there? */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
64 if (step_ok(y, x, NOMONST, tp) &&
304
e52a8a7ad4c5 Fix many compiler warnings.
John "Elwin" Edwards
parents: 220
diff changeset
65 (!isatrap(mvwinch(cw, y, x) & A_CHARTEXT) ||
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
66 rnd(10) >= tp->t_stats.s_intel ||
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
67 on(*tp, ISFLY))) {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
68 /* OK, we can go here. But don't go there if
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
69 * monster can't get at player from there
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
70 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
71 tryp.y = y;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
72 tryp.x = x;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
73 if (diag_ok(&tryp, &hero, tp)) {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
74 spots[index] = TRUE;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
75 found_one = TRUE;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
76 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
77 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
78 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
79
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
80 /* If we found one, go to it */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
81 if (found_one) {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
82 unsigned char rch; /* What's really where the creatures moves to */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
83
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
84 /* Find a legal spot */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
85 while (spots[index=rnd(9)] == FALSE) continue;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
86
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
87 /* Get the coordinates */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
88 y = hero.y + (index/3) - 1;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
89 x = hero.x + (index % 3) - 1;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
90
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
91 /* Move the monster from the old space */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents: