1 /*
2 * Copyright (c) 1980 Regents of the University of California.
3 * 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
34 #ifndef lint
35 static char sccsid[] = "@(#)execute.c 5.5 (Berkeley) 2/28/91";
36 #endif /* not lint */
37
38 # include "monop.ext"
39 # include <sys/types.h>
40 # include <sys/stat.h>
41 # include <sys/time.h>
42
43 # define SEGSIZE 8192
44
45 typedef struct stat STAT;
46 typedef struct tm TIME;
47
48 extern char etext[], /* end of text space */
49 rub();
50
51 static char buf[257],
52 *yn_only[] = { "yes", "no"};
53
54 static bool new_play; /* set if move on to new player */
55
56 /*
57 * This routine executes the given command by index number
58 */
execute(com_num)59 execute(com_num)
60 reg int com_num; {
61
62 new_play = FALSE; /* new_play is true if fixing */
63 (*func[com_num])();
64 notify();
65 force_morg();
66 if (new_play)
67 next_play();
68 else if (num_doub)
69 printf("%s rolled doubles. Goes again\n", cur_p->name);
70 }
71 /*
72 * This routine moves a piece around.
73 */
do_move()74 do_move() {
75
76 reg int r1, r2;
77 reg bool was_jail;
78
79 new_play = was_jail = FALSE;
80 printf("roll is %d, %d\n", r1=roll(1, 6), r2=roll(1, 6));
81 if (cur_p->loc == JAIL) {
82 was_jail++;
83 if (!move_jail(r1, r2)) {
84 new_play++;
85 goto ret;
86 }
87 }
88 else {
89 if (r1 == r2 && ++num_doub == 3) {
90 printf("That's 3 doubles. You go to jail\n");
91 goto_jail();
92 new_play++;
93 goto ret;
94 }
95 move(r1+r2);
96 }
97 if (r1 != r2 || was_jail)
98 new_play++;
99 ret:
100 return;
101 }
102 /*
103 * This routine moves a normal move
104 */
move(rl)105 move(rl)
106 reg int rl; {
107
108 reg int old_loc;
109
110 old_loc = cur_p->loc;
111 cur_p->loc = (cur_p->loc + rl) % N_SQRS;
112 if (cur_p->loc < old_loc && rl > 0) {
113 cur_p->money += 200;
114 printf("You pass %s and get $200\n", board[0].name);
115 }
116 show_move();
117 }
118 /*
119 * This routine shows the results of a move
120 */
show_move()121 show_move() {
122
123 reg SQUARE *sqp;
124
125 sqp = &board[cur_p->loc];
126 printf("That puts you on %s\n", sqp->name);
127 switch (sqp->type) {
128 case SAFE:
129 printf("That is a safe place\n");
130 break;
131 case CC:
132 cc(); break;
133 case CHANCE:
134 chance(); break;
135 case INC_TAX:
136 inc_tax(); break;
137 case GOTO_J:
138 goto_jail(); break;
139 case LUX_TAX:
140 lux_tax(); break;
141 case PRPTY:
142 case RR:
143 case UTIL:
144 if (sqp->owner < 0) {
145 printf("That would cost $%d\n", sqp->cost);
146 if (getyn("Do you want to buy? ") == 0) {
147 buy(player, sqp);
148 cur_p->money -= sqp->cost;
149 }
150 else if (num_play > 2)
151 bid(sqp);
152 }
153 else if (sqp->owner == player)
154 printf("You own it.\n");
155 else
156 rent(sqp);
157 }
158 }
159 /*
160 * This routine saves the current game for use at a later date
161 */
save()162 save() {
163
164 reg char *sp;
165 reg int outf, num;
166 time_t t;
167 int *dat_end;
168 struct stat sb;
169 unsgn start, end;
170
171 printf("Which file do you wish to save it in? ");
172 sp = buf;
173 while ((*sp++=getchar()) != '\n')
174 continue;
175 *--sp = '\0';
176
177 /*
178 * check for existing files, and confirm overwrite if needed
179 */
180
181 if (stat(buf, &sb) > -1
182 && getyn("File exists. Do you wish to overwrite? ", yn_only) > 0)
183 return;
184
185 if ((outf=creat(buf, 0644)) < 0) {
186 perror(buf);
187 return;
188 }
189 printf("\"%s\" ", buf);
190 time(&t); /* get current time */
191 strcpy(buf, ctime(&t));
192 for (sp = buf; *sp != '\n'; sp++)
193 continue;
194 *sp = '\0';
195 # if 0
196 start = (((int) etext + (SEGSIZE-1)) / SEGSIZE ) * SEGSIZE;
197 # else
198 start = 0;
199 # endif
200 end = sbrk(0);
201 while (start < end) { /* write out entire data space */
202 num = start + 16 * 1024 > end ? end - start : 16 * 1024;
203 write(outf, start, num);
204 start += num;
205 }
206 close(outf);
207 printf("[%s]\n", buf);
208 }
209 /*
210 * This routine restores an old game from a file
211 */
restore()212 restore() {
213
214 reg char *sp;
215
216 printf("Which file do you wish to restore from? ");
217 for (sp = buf; (*sp=getchar()) != '\n'; sp++)
218 continue;
219 *sp = '\0';
220 rest_f(buf);
221 }
222 /*
223 * This does the actual restoring. It returns TRUE if the
224 * backup was successful, else false.
225 */
rest_f(file)226 rest_f(file)
227 reg char *file; {
228
229 reg char *sp;
230 reg int inf, num;
231 char buf[80];
232 unsgn start, end;
233 STAT sbuf;
234
235 if ((inf=open(file, 0)) < 0) {
236 perror(file);
237 return FALSE;
238 }
239 printf("\"%s\" ", file);
240 if (fstat(inf, &sbuf) < 0) { /* get file stats */
241 perror(file);
242 exit(1);
243 }
244 # if 0
245 start = (((int) etext + (SEGSIZE-1)) / SEGSIZE ) * SEGSIZE;
246 # else
247 start = 0;
248 # endif
249 brk(end = start + sbuf.st_size);
250 while (start < end) { /* write out entire data space */
251 num = start + 16 * 1024 > end ? end - start : 16 * 1024;
252 read(inf, start, num);
253 start += num;
254 }
255 close(inf);
256 strcpy(buf, ctime(&sbuf.st_mtime));
257 for (sp = buf; *sp != '\n'; sp++)
258 continue;
259 *sp = '\0';
260 printf("[%s]\n", buf);
261 return TRUE;
262 }
263