xref: /dragonfly/games/mille/misc.c (revision 0ac6bf9d)
1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)misc.c	8.1 (Berkeley) 5/31/93
34  * $FreeBSD: src/games/mille/misc.c,v 1.8.2.1 2001/06/13 13:52:14 dwmalone Exp $
35  * $DragonFly: src/games/mille/misc.c,v 1.4 2006/08/27 17:17:23 pavalos Exp $
36  */
37 
38 #include <sys/file.h>
39 #include <stdarg.h>
40 #include <termios.h>
41 
42 #include	"mille.h"
43 
44 
45 # ifdef	attron
46 #	include	<term.h>
47 #	define	_tty	cur_term->Nttyb
48 # endif	/* attron */
49 
50 /*
51  * @(#)misc.c	1.2 (Berkeley) 3/28/83
52  */
53 
54 #define	NUMSAFE	4
55 
56 /* VARARGS1 */
57 bool
58 error(const char *str, ...)
59 {
60 	va_list arg;
61 
62 	va_start(arg, str);
63 	stdscr = Score;
64 	move(ERR_Y, ERR_X);
65 	vw_printw(stdscr, str, arg);
66 	va_end(arg);
67 	clrtoeol();
68 	putchar('\07');
69 	refresh();
70 	stdscr = Board;
71 	return FALSE;
72 }
73 
74 CARD
75 getcard(void)
76 {
77 	int		c, c1;
78 
79 	for (;;) {
80 		while ((c = readch()) == '\n' || c == '\r' || c == ' ')
81 			continue;
82 		if (islower(c))
83 			c = toupper(c);
84 		if (c == killchar() || c == erasechar())
85 			return -1;
86 		addstr(unctrl(c));
87 		clrtoeol();
88 		switch (c) {
89 		  case '1':	case '2':	case '3':
90 		  case '4':	case '5':	case '6':
91 			c -= '0';
92 			break;
93 		  case '0':	case 'P':	case 'p':
94 			c = 0;
95 			break;
96 		  default:
97 			putchar('\07');
98 			addch('\b');
99 			if (!isprint(c))
100 				addch('\b');
101 			c = -1;
102 			break;
103 		}
104 		refresh();
105 		if (c >= 0) {
106 			while ((c1=readch()) != '\r' && c1 != '\n' && c1 != ' ')
107 				if (c1 == killchar())
108 					return -1;
109 				else if (c1 == erasechar()) {
110 					addch('\b');
111 					clrtoeol();
112 					refresh();
113 					goto cont;
114 				}
115 				else
116 					write(0, "\07", 1);
117 			return c;
118 		}
119 cont:		;
120 	}
121 }
122 
123 bool
124 check_ext(bool forcomp)
125 {
126 
127 
128 	if (End == 700)
129 		if (Play == PLAYER) {
130 			if (getyn(EXTENSIONPROMPT)) {
131 extend:
132 				if (!forcomp)
133 					End = 1000;
134 				return TRUE;
135 			}
136 			else {
137 done:
138 				if (!forcomp)
139 					Finished = TRUE;
140 				return FALSE;
141 			}
142 		}
143 		else {
144 			PLAY	*pp, *op;
145 			int		i, safe, miles;
146 
147 			pp = &Player[COMP];
148 			op = &Player[PLAYER];
149 			for (safe = 0, i = 0; i < NUMSAFE; i++)
150 				if (pp->safety[i] != S_UNKNOWN)
151 					safe++;
152 			if (safe < 2)
153 				goto done;
154 			if (op->mileage == 0 || onecard(op)
155 			    || (op->can_go && op->mileage >= 500))
156 				goto done;
157 			for (miles = 0, i = 0; i < NUMSAFE; i++)
158 				if (op->safety[i] != S_PLAYED
159 				    && pp->safety[i] == S_UNKNOWN)
160 					miles++;
161 			if (miles + safe == NUMSAFE)
162 				goto extend;
163 			for (miles = 0, i = 0; i < HAND_SZ; i++)
164 				if ((safe = pp->hand[i]) <= C_200)
165 					miles += Value[safe];
166 			if (miles + (Topcard - Deck) * 3 > 1000)
167 				goto extend;
168 			goto done;
169 		}
170 	else
171 		goto done;
172 }
173 
174 /*
175  *	Get a yes or no answer to the given question.  Saves are
176  * also allowed.  Return TRUE if the answer was yes, FALSE if no.
177  */
178 bool
179 getyn(int promptno)
180 {
181 
182 	char	c;
183 
184 	Saved = FALSE;
185 	for (;;) {
186 		leaveok(Board, FALSE);
187 		prompt(promptno);
188 		clrtoeol();
189 		refresh();
190 		switch (c = readch()) {
191 		  case 'n':	case 'N':
192 			addch('N');
193 			refresh();
194 			leaveok(Board, TRUE);
195 			return FALSE;
196 		  case 'y':	case 'Y':
197 			addch('Y');
198 			refresh();
199 			leaveok(Board, TRUE);
200 			return TRUE;
201 		  case 's':	case 'S':
202 			addch('S');
203 			refresh();
204 			Saved = save();
205 			continue;
206 		  case CTRL('L'):
207 			wrefresh(curscr);
208 			break;
209 		  default:
210 			addstr(unctrl(c));
211 			refresh();
212 			putchar('\07');
213 			break;
214 		}
215 	}
216 }
217 
218 /*
219  *	Check to see if more games are desired.  If not, and game
220  * came from a saved file, make sure that they don't want to restore
221  * it.  Exit appropriately.
222  */
223 void
224 check_more(void)
225 {
226 
227 	On_exit = TRUE;
228 	if (Player[PLAYER].total >= 5000 || Player[COMP].total >= 5000)
229 		if (getyn(ANOTHERGAMEPROMPT))
230 			return;
231 		else {
232 			/*
233 			 * must do accounting normally done in main()
234 			 */
235 			if (Player[PLAYER].total > Player[COMP].total)
236 				Player[PLAYER].games++;
237 			else if (Player[PLAYER].total < Player[COMP].total)
238 				Player[COMP].games++;
239 			Player[COMP].total = 0;
240 			Player[PLAYER].total = 0;
241 		}
242 	else
243 		if (getyn(ANOTHERHANDPROMPT))
244 			return;
245 	if (!Saved && getyn(SAVEGAMEPROMPT))
246 		if (!save())
247 			return;
248 	die(0);
249 }
250 
251 char
252 readch(void)
253 {
254 	int		cnt;
255 	static char	c;
256 
257 	for (cnt = 0; read(0, &c, 1) <= 0; cnt++)
258 		if (cnt > 100)
259 			exit(1);
260 	return c;
261 }
262