summaryrefslogtreecommitdiffstats
path: root/hack/hack.mkmaze.c
blob: d5d2f76f915a2ba149e905523228766bc1412959 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*	$NetBSD: hack.mkmaze.c,v 1.5 2001/03/25 20:44:01 jsm Exp $	*/

/*
 * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
 */

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.mkmaze.c,v 1.5 2001/03/25 20:44:01 jsm Exp $");
#endif				/* not lint */

#include "hack.h"
#include "extern.h"
#include "def.mkroom.h"		/* not really used */
const struct permonst hell_hound =
{"hell hound", 'd', 12, 14, 2, 3, 6, 0};

void
makemaz()
{
	int             x, y;
	int		zx, zy;
	coord           mm;
	boolean         al = (dlevel >= 30 && !flags.made_amulet);

	for (x = 2; x < COLNO - 1; x++)
		for (y = 2; y < ROWNO - 1; y++)
			levl[x][y].typ = (x % 2 && y % 2) ? 0 : HWALL;
	if (al) {
		struct monst   *mtmp;

		zx = 2 * (COLNO / 4) - 1;
		zy = 2 * (ROWNO / 4) - 1;
		for (x = zx - 2; x < zx + 4; x++)
			for (y = zy - 2; y <= zy + 2; y++) {
				levl[x][y].typ =
					(y == zy - 2 || y == zy + 2 || x == zx - 2 || x == zx + 3) ? POOL :
					(y == zy - 1 || y == zy + 1 || x == zx - 1 || x == zx + 2) ? HWALL :
					ROOM;
			}
		(void) mkobj_at(AMULET_SYM, zx, zy);
		flags.made_amulet = 1;
		walkfrom(zx + 4, zy);
		if ((mtmp = makemon(&hell_hound, zx, zy)) != NULL)
			mtmp->msleep = 1;
		if ((mtmp = makemon(PM_WIZARD, zx + 1, zy)) != NULL) {
			mtmp->msleep = 1;
			flags.no_of_wizards = 1;
		}
	} else {
		mm = mazexy();
		zx = mm.x;
		zy = mm.y;
		walkfrom(zx, zy);
		(void) mksobj_at(WAN_WISHING, zx, zy);
		(void) mkobj_at(ROCK_SYM, zx, zy);	/* put a rock on top of
							 * it */
	}

	for (x = 2; x < COLNO - 1; x++)
		for (y = 2; y < ROWNO - 1; y++) {
			switch (levl[x][y].typ) {
			case HWALL:
				levl[x][y].scrsym = '-';
				break;
			case ROOM:
				levl[x][y].scrsym = '.';
				break;
			}
		}
	for (x = rn1(8, 11); x; x--) {
		mm = mazexy();
		(void) mkobj_at(rn2(2) ? GEM_SYM : 0, mm.x, mm.y);
	}
	for (x = rn1(10, 2); x; x--) {
		mm = mazexy();
		(void) mkobj_at(ROCK_SYM, mm.x, mm.y);
	}
	mm = mazexy();
	(void) makemon(PM_MINOTAUR, mm.x, mm.y);
	for (x = rn1(5, 7); x; x--) {
		mm = mazexy();
		(void) makemon((struct permonst *) 0, mm.x, mm.y);
	}
	for (x = rn1(6, 7); x; x--) {
		mm = mazexy();
		mkgold(0L, mm.x, mm.y);
	}
	for (x = rn1(6, 7); x; x--)
		mktrap(0, 1, (struct mkroom *) 0);
	mm = mazexy();
	levl[(xupstair = mm.x)][(yupstair = mm.y)].scrsym = '<';
	levl[xupstair][yupstair].typ = STAIRS;
	xdnstair = ydnstair = 0;
}

void
walkfrom(x, y)
	int             x, y;
{
	int             q, a, dir;
	int             dirs[4];
	levl[x][y].typ = ROOM;
	while (1) {
		q = 0;
		for (a = 0; a < 4; a++)
			if (okay(x, y, a))
				dirs[q++] = a;
		if (!q)
			return;
		dir = dirs[rn2(q)];
		move(&x, &y, dir);
		levl[x][y].typ = ROOM;
		move(&x, &y, dir);
		walkfrom(x, y);
	}
}

void
move(x, y, dir)
	int            *x, *y;
	int             dir;
{
	switch (dir) {
	case 0:
		--(*y);
		break;
	case 1:
		(*x)++;
		break;
	case 2:
		(*y)++;
		break;
	case 3:
		--(*x);
		break;
	}
}

int
okay(x, y, dir)
	int             x, y;
	int             dir;
{
	move(&x, &y, dir);
	move(&x, &y, dir);
	if (x < 3 || y < 3 || x > COLNO - 3 || y > ROWNO - 3 || levl[x][y].typ != 0)
		return (0);
	else
		return (1);
}

coord
mazexy()
{
	coord           mm;
	mm.x = 3 + 2 * rn2(COLNO / 2 - 2);
	mm.y = 3 + 2 * rn2(ROWNO / 2 - 2);
	return mm;
}