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Up to [CSRG BSD Unix] / 42BSD / games / monop|
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1.1 root 1: # include "monop.ext"
2: # include <ctype.h>
3: # include <signal.h>
4:
5: # define execsh(sh) execl(sh, shell_name[roll(1, num_names)-1], 0)
6:
7: static char *shell_def = "/bin/csh",
8: *shell_name[] = {
9: ".Hi Mom!",
10: ".Kick Me",
11: ".I'm really the next process down",
12: ".Hi Kids!",
13: ".This space for rent",
14: ".Singin' in the rain....",
15: ".I am but a Cog in the Wheel of Life",
16: ".Look out!!! Behind you!!!!!",
17: ".Looking for a good time, sailor?",
18: ".I don't get NO respect...",
19: ".Augghh! You peeked!"
20: };
21:
22: static int num_names = sizeof shell_name / sizeof (char *);;
23:
24: char *shell_in();
25:
26: /*
27: * This routine executes a truncated set of commands until a
28: * "yes or "no" answer is gotten.
29: */
30: getyn(prompt)
31: reg char *prompt; {
32:
33: reg int com;
34:
35: for (;;)
36: if ((com=getinp(prompt, yn)) < 2)
37: return com;
38: else
39: (*func[com-2])();
40: }
41: /*
42: * This routine tells the player if he's out of money.
43: */
44: notify() {
45:
46: if (cur_p->money < 0)
47: printf("That leaves you $%d in debt\n", -cur_p->money);
48: else if (cur_p->money == 0)
49: printf("that leaves you broke\n");
50: else if (fixing && !told_em && cur_p->money > 0) {
51: printf("-- You are now Solvent ---\n");
52: told_em = TRUE;
53: }
54: }
55: /*
56: * This routine switches to the next player
57: */
58: next_play() {
59:
60: player = ++player % num_play;
61: cur_p = &play[player];
62: num_doub = 0;
63: }
64: /*
65: * This routine gets an integer from the keyboard after the
66: * given prompt.
67: */
68: get_int(prompt)
69: reg char *prompt; {
70:
71: reg int num;
72: reg char *sp;
73: char buf[257];
74:
75: for (;;) {
76: inter:
77: printf(prompt);
78: num = 0;
79: for (sp = buf; (*sp=getchar()) != '\n'; sp++)
80: if (*sp == -1) /* check for interrupted system call */
81: goto inter;
82: if (sp == buf)
83: continue;
84: for (sp = buf; isspace(*sp); sp++)
85: continue;
86: for (; isdigit(*sp); sp++)
87: num = num * 10 + *sp - '0';
88: if (*sp == '\n')
89: return num;
90: else
91: printf("I can't understand that\n");
92: }
93: }
94: /*
95: * This routine sets the monopoly flag from the list given.
96: */
97: set_ownlist(pl)
98: int pl; {
99:
100: reg int num; /* general counter */
101: reg MON *orig; /* remember starting monop ptr */
102: reg OWN *op; /* current owned prop */
103: OWN *orig_op; /* origianl prop before loop */
104:
105: op = play[pl].own_list;
106: #ifdef DEBUG
107: printf("op [%d] = play[pl [%d] ].own_list;\n", op, pl);
108: #endif
109: while (op) {
110: #ifdef DEBUG
111: printf("op->sqr->type = %d\n", op->sqr->type);
112: #endif
113: switch (op->sqr->type) {
114: case UTIL:
115: #ifdef DEBUG
116: printf(" case UTIL:\n");
117: #endif
118: for (num = 0; op && op->sqr->type == UTIL; op = op->next)
119: num++;
120: play[pl].num_util = num;
121: #ifdef DEBUG
122: printf("play[pl].num_util = num [%d];\n", num);
123: #endif
124: break;
125: case RR:
126: #ifdef DEBUG
127: printf(" case RR:\n");
128: #endif
129: for (num = 0; op && op->sqr->type == RR; op = op->next) {
130: #ifdef DEBUG
131: printf("iter: %d\n", num);
132: printf("op = %d, op->sqr = %d, op->sqr->type = %d\n", op, op->sqr, op->sqr->type);
133: #endif
134: num++;
135: }
136: play[pl].num_rr = num;
137: #ifdef DEBUG
138: printf("play[pl].num_rr = num [%d];\n", num);
139: #endif
140: break;
141: case PRPTY:
142: #ifdef DEBUG
143: printf(" case PRPTY:\n");
144: #endif
145: orig = op->sqr->desc->mon_desc;
146: orig_op = op;
147: num = 0;
148: while (op && op->sqr->desc->mon_desc == orig) {
149: #ifdef DEBUG
150: printf("iter: %d\n", num);
151: #endif
152: num++;
153: #ifdef DEBUG
154: printf("op = op->next ");
155: #endif
156: op = op->next;
157: #ifdef DEBUG
158: printf("[%d];\n", op);
159: #endif
160: }
161: #ifdef DEBUG
162: printf("num = %d\n");
163: #endif
164: if (orig == 0) {
165: printf("panic: bad monopoly descriptor: orig = %d\n", orig);
166: printf("player # %d\n", pl+1);
167: printhold(pl);
168: printf("orig_op = %d\n", orig_op);
169: printf("orig_op->sqr->type = %d (PRPTY)\n", op->sqr->type);
170: printf("orig_op->next = %d\n", op->next);
171: printf("orig_op->sqr->desc = %d\n", op->sqr->desc);
172: printf("op = %d\n", op);
173: printf("op->sqr->type = %d (PRPTY)\n", op->sqr->type);
174: printf("op->next = %d\n", op->next);
175: printf("op->sqr->desc = %d\n", op->sqr->desc);
176: printf("num = %d\n", num);
177: }
178: #ifdef DEBUG
179: printf("orig->num_in = %d\n", orig->num_in);
180: #endif
181: if (num == orig->num_in)
182: is_monop(orig, pl);
183: else
184: isnot_monop(orig);
185: break;
186: }
187: }
188: }
189: /*
190: * This routine sets things up as if it is a new monopoly
191: */
192: is_monop(mp, pl)
193: reg MON *mp;
194: int pl; {
195:
196: reg char *sp;
197: reg int i;
198:
199: mp->owner = pl;
200: mp->num_own = mp->num_in;
201: for (i = 0; i < mp->num_in; i++)
202: mp->sq[i]->desc->monop = TRUE;
203: mp->name = mp->mon_n;
204: }
205: /*
206: * This routine sets things up as if it is no longer a monopoly
207: */
208: isnot_monop(mp)
209: reg MON *mp; {
210:
211: reg char *sp;
212: reg int i;
213:
214: mp->owner = -1;
215: for (i = 0; i < mp->num_in; i++)
216: mp->sq[i]->desc->monop = FALSE;
217: mp->name = mp->not_m;
218: }
219: /*
220: * This routine gives a list of the current player's routine
221: */
222: list() {
223:
224: printhold(player);
225: }
226: /*
227: * This routine gives a list of a given players holdings
228: */
229: list_all() {
230:
231: reg int pl;
232:
233: while ((pl=getinp("Whose holdings do you want to see? ", name_list)) < num_play)
234: printhold(pl);
235: }
236: /*
237: * This routine gives the players a chance before it exits.
238: */
239: quit() {
240:
241: putchar('\n');
242: if (getyn("Do you all really want to quit? ", yn) == 0)
243: exit(0);
244: signal(2, quit);
245: }
246: /*
247: * This routine copies one structure to another
248: */
249: cpy_st(s1, s2, size)
250: reg int *s1, *s2, size; {
251:
252: size /= 2;
253: while (size--)
254: *s1++ = *s2++;
255: }
256: /*
257: * This routine forks off a shell. It uses the users login shell
258: */
259: shell_out() {
260:
261: static char *shell = NULL;
262:
263: printline();
264: if (shell == NULL)
265: shell = shell_in();
266: fflush();
267: if (!fork()) {
268: signal(SIGINT, SIG_DFL);
269: execsh(shell);
270: }
271: ignoresigs();
272: wait();
273: resetsigs();
274: putchar('\n');
275: printline();
276: }
277: /*
278: * This routine looks up the users login shell
279: */
280: # include <pwd.h>
281:
282: struct passwd *getpwuid();
283:
284: char *getenv();
285:
286: char *
287: shell_in() {
288:
289: reg struct passwd *pp;
290: reg char *sp;
291:
292: if ((sp = getenv("SHELL")) == NULL) {
293: pp = getpwuid(getuid());
294: if (pp->pw_shell[0] != '\0')
295: return pp->pw_shell;
296: else
297: return shell_def;
298: /*return (*(pp->pw_shell) != '\0' ? pp->pw_shell : shell_def);*/
299: }
300: return sp;
301: }
302: /*
303: * This routine sets things up to ignore all the signals.
304: */
305: ignoresigs() {
306:
307: reg int i;
308:
309: for (i = 0; i < NSIG; i++)
310: signal(i, SIG_IGN);
311: }
312: /*
313: * This routine sets up things as they were before.
314: */
315: resetsigs() {
316:
317: reg int i;
318:
319: for (i = 0; i < NSIG; i++)
320: signal(i, SIG_DFL);
321: signal(2, quit);
322: }
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