1 /*
2  * ###   ###   ###  #   # #####
3  * #  # #   # #   # #   # #
4  * #  # #   # #   # #   # #
5  * ###  #   # #     #   # ###
6  * #  # #   # #  ## #   # #
7  * #  # #   # #   # #   # #
8  * #  #  ###   ###   ###  #####
9  *
10  * Exploring the Dungeons of Doom
11  * Copyright (C) 1981 by Michael Toy, Ken Arnold, and Glenn Wichman
12  * main.c	1.4 (A.I. Design) 11/28/84
13  * All rights reserved
14  * Copyright (C) 1983 by Mel Sibony, Jon Lane (AI Design update for the IBMPC)
15  */
16 
17 #include "rogue.h"
18 #include "curses.h"
19 
20 #define is_key(s) ((*s=='-')||(*s=='/'))
21 #define is_char(c1,c2) ((c1==c2)||((c1+'a'-'A')==c2))
22 
23 int bwflag = FALSE;
24 char do_force = FALSE;
25 #ifdef LOGFILE
26 int log_read, log_write;
27 #endif
28 
29 /*
30  * Permanent stack data
31  */
32 struct sw_regs *regs;
33 
34 /*
35  * main:
36  *	The main program, of course
37  */
38 
39 main(argc, argv)
40 int argc;
41 char **argv;
42 {
43     register char *curarg, *savfile=0;
44 	struct sw_regs _treg;
45 	long junk = 0L;
46 	int sl;
47 
48 	regs = &_treg;
49 	dmaout(&junk,2,0,4);
50 	clock_on();
51 	epyx_yuck();
52 	init_ds();
53 
54     setenv(ENVFILE);
55 	protect(find_drive());
56 	/*
57 	 * Parse the screen environment variable.  if the string starts with
58 	 * "bw", then we force black and white mode.  If it ends with "fast"
59 	 * then we disable retrace checking
60 	 */
61 	if (strncmp(s_screen, "bw", 2) == 0)
62 		bwflag = TRUE;
63 	if ((sl = strlen(s_screen)) >= 4
64 		 && strncmp(&s_screen[sl - 4], "fast", 4) == 0)
65 		 	do_force = TRUE;
66 	dnum = 0;
67 #ifdef PROTECTED
68     while (--argc && goodchk == 0xD0D) {
69 #else
70     while (--argc) {
71 #endif
72 		curarg = *(++argv);
73     	if (*curarg == '-' || *curarg == '/')
74     	{
75     	    switch(curarg[1])
76     	    {
77                 case 'R': case 'r':
78     	             savfile = s_save;
79     	             break;
80     	        case 's': case 'S':
81                     winit();
82                     noscore = TRUE;
83                     is_saved = TRUE;
84                     score(0,0,0);
85                     fatal("");
86 					break;
87 #ifdef LOGFILE
88 				case 'l':
89 					log_write = -1;
90 					dnum = 100;
91 					break;
92 				case 'k':
93 					log_read = -1;
94 					dnum = 100;
95 					break;
96 #endif LOGFILE
97             }
98         }
99         else if (savfile == 0)
100             savfile = curarg;
101     }
102     if (savfile == 0) {
103 		savfile = 0;
104     	winit();
105     	if (bwflag) 
106     	    forcebw();
107 		if (no_check == 0)
108 			no_check = do_force;
109     	credits();
110     	if (dnum == 0)
111 			dnum = srand();
112     	seed = dnum;
113 
114 
115 		init_player();			/* Set up initial player stats */
116 		init_things();			/* Set up probabilities of things */
117 		init_names();			/* Set up names of scrolls */
118 		init_colors();			/* Set up colors of potions */
119 		init_stones();			/* Set up stone settings of rings */
120 		init_materials();			/* Set up materials of wands */
121 		setup();
122 		drop_curtain();
123 		new_level();			/* Draw current level */
124 		/*
125 		 * Start up daemons and fuses
126 		 */
127 		daemon(doctor, 0);
128 		fuse(swander, 0, WANDERTIME);
129 		daemon(stomach, 0);
130 		daemon(runners, 0);
131 		msg("Hello %s%s.", whoami, noterse(".  Welcome to the Dungeons of Doom"));
132 		raise_curtain();
133     }
134     playit(savfile);
135 }
136 
137 /*
138  * endit:
139  *	Exit the program abnormally.
140  */
141 endit()
142 {
143     fatal("Ok, if you want to exit that badly, I'll have to allow it\n");
144 }
145 
146 #define RN		(((seed = seed*11109L+13849L) >> 16) & 0xffff)
147 /*
148  * Random number generator -
149  * adapted from the FORTRAN version 
150  * in "Software Manual for the Elementary Functions"
151  * by W.J. Cody, Jr and William Waite.
152  */
153 long
154 ran()
155 {
156 	seed *= 125;
157 	seed -= (seed/2796203) * 2796203;
158 	return seed;
159 }
160 
161 /*
162  * rnd:
163  *	Pick a very random number.
164  */
165 rnd(range)
166 register int range;
167 {
168     return range < 1 ? 0 : ((ran() + ran())&0x7fffffffl) % range;
169 }
170 
171 /*
172  * roll:
173  *	Roll a number of dice
174  */
175 roll(number, sides)
176 register int number, sides;
177 {
178     register int dtotal = 0;
179 
180     while (number--)
181 	dtotal += rnd(sides)+1;
182     return dtotal;
183 }
184 
185 /*
186  * playit:
187  *	The main loop of the program.  Loop until the game is over,
188  *	refreshing things and looking at the proper times.
189  */
190 playit(sname,bw)
191 	char *sname;
192     int bw;
193 {
194     if (sname) {
195 		extern int iscuron;
196 		int ov, oc;
197 
198     	restore(sname);
199     	if (bwflag)
200     		forcebw();
201 		if (no_check == 0)
202 			no_check = do_force;
203     	setup();
204     	iscuron = TRUE;
205     	cursor(FALSE);
206     } else {
207 		oldpos.x = hero.x;
208 		oldpos.y = hero.y;
209 		oldrp = roomin(&hero);
210     }
211 #ifdef ME
212     is_me = (strcmp(ME, whoami) == 0 || strcmp("Mr. Mctesq", whoami) == 0);
213 #endif
214     while (playing)
215 		command();			/* Command execution */
216     endit();
217 }
218 
219 /*
220  * quit:
221  *	Have player make certain, then exit.
222  */
223 quit()
224 {
225     int oy, ox;
226     register byte answer;
227     static qstate = FALSE;
228 
229     /*
230      * if they try to interupt with a control C while in
231      * this routine blow them away!
232      */
233     if (qstate == TRUE)
234 		leave();
235     qstate = TRUE;
236     mpos = 0;
237     getyx(eatme,oy, ox);
238     move(0,0);
239     clrtoeol();
240     move(0,0);
241     if (!terse)
242     	addstr("Do you wish to ");
243     str_attr("end your quest now (%Yes/%No) ?");
244     look(FALSE);
245     answer = readchar();
246     if (answer == 'y' || answer == 'Y') {
247 #ifdef DEMO
248 		demo(1);
249 #else
250 		clear();
251 		move(0,0);
252 		printw("You quit with %u gold pieces\n", purse);
253 		score(purse, 1, 0);
254 		fatal("");
255     } else {
256 		move(0, 0);
257 		clrtoeol();
258 		status();
259 		move(oy, ox);
260 		mpos = 0;
261 		count = 0;
262 #endif DEMO
263     }
264     qstate = FALSE;
265 }
266 
267 /*
268  * leave:
269  *	Leave quickly, but courteously
270  */
271 leave()
272 {
273 	look(FALSE);
274     move(LINES - 1, 0);
275     clrtoeol();
276     move(LINES - 2, 0);
277     clrtoeol();
278     move(LINES - 2, 0);
279     fatal("Ok, if you want to leave that badly\n");
280 }
281 
282 /*
283  *  fatal: exit with a message
284  */
285 fatal(msg,arg) 
286 	char *msg;
287 	int arg;
288 {
289 	endwin();
290 	printw(msg, arg);
291 	exit(0);
292 }
293 ÿ