1 /* $NetBSD: diag.c,v 1.13 2012/06/19 05:30:43 dholland Exp $ */
2
3 /* diag.c Larn is copyrighted 1986 by Noah Morgan. */
4 #include <sys/cdefs.h>
5 #ifndef lint
6 __RCSID("$NetBSD: diag.c,v 1.13 2012/06/19 05:30:43 dholland Exp $");
7 #endif /* not lint */
8
9 #include <sys/types.h>
10 #include <sys/times.h>
11 #include <sys/stat.h>
12 #include <stdlib.h>
13 #include <string.h>
14 #include <unistd.h>
15 #include "header.h"
16 #include "extern.h"
17
18 static void greedy(void);
19 static void fsorry(void);
20 static void fcheat(void);
21
22 static struct tms cputime;
23
24 /*
25 ***************************
26 DIAG -- dungeon diagnostics
27 ***************************
28
29 subroutine to print out data for debugging
30 */
31 #ifdef EXTRA
32 static int rndcount[16];
33 void
diag()34 diag()
35 {
36 int i, j;
37 int hit, dam;
38 cursors();
39 lwclose();
40 if (lcreat(diagfile) < 0) { /* open the diagnostic file */
41 lcreat((char *) 0);
42 lprcat("\ndiagnostic failure\n");
43 return (-1);
44 }
45 write(1, "\nDiagnosing . . .\n", 18);
46 lprcat("\n\nBeginning of DIAG diagnostics ----------\n");
47
48 /* for the character attributes */
49
50 lprintf("\n\nPlayer attributes:\n\nHit points: %2ld(%2ld)", (long) c[HP], (long) c[HPMAX]);
51 lprintf("\ngold: %ld Experience: %ld Character level: %ld Level in caverns: %ld",
52 (long) c[GOLD], (long) c[EXPERIENCE], (long) c[LEVEL], (long) level);
53 lprintf("\nTotal types of monsters: %ld", (long) MAXMONST + 8);
54
55 lprcat("\f\nHere's the dungeon:\n\n");
56
57 i = level;
58 for (j = 0; j < MAXLEVEL + MAXVLEVEL; j++) {
59 newcavelevel(j);
60 lprintf("\nMaze for level %s:\n", levelname[level]);
61 diagdrawscreen();
62 }
63 newcavelevel(i);
64
65 lprcat("\f\nNow for the monster data:\n\n");
66 lprcat(" Monster Name LEV AC DAM ATT DEF GOLD HP EXP \n");
67 lprcat("--------------------------------------------------------------------------\n");
68 for (i = 0; i <= MAXMONST + 8; i++) {
69 lprintf("%19s %2ld %3ld ", monster[i].name, (long) monster[i].level, (long) monster[i].armorclass);
70 lprintf(" %3ld %3ld %3ld ", (long) monster[i].damage, (long) monster[i].attack, (long) monster[i].defense);
71 lprintf("%6ld %3ld %6ld\n", (long) monster[i].gold, (long) monster[i].hitpoints, (long) monster[i].experience);
72 }
73
74 lprcat("\n\nHere's a Table for the to hit percentages\n");
75 lprcat("\n We will be assuming that players level = 2 * monster level");
76 lprcat("\n and that the players dexterity and strength are 16.");
77 lprcat("\n to hit: if (rnd(22) < (2[monst AC] + your level + dex + WC/8 -1)/2) then hit");
78 lprcat("\n damage = rund(8) + WC/2 + STR - c[HARDGAME] - 4");
79 lprcat("\n to hit: if rnd(22) < to hit then player hits\n");
80 lprcat("\n Each entry is as follows: to hit / damage / number hits to kill\n");
81 lprcat("\n monster WC = 4 WC = 20 WC = 40");
82 lprcat("\n---------------------------------------------------------------");
83 for (i = 0; i <= MAXMONST + 8; i++) {
84 hit = 2 * monster[i].armorclass + 2 * monster[i].level + 16;
85 dam = 16 - c[HARDGAME];
86 lprintf("\n%20s %2ld/%2ld/%2ld %2ld/%2ld/%2ld %2ld/%2ld/%2ld",
87 monster[i].name,
88 (long) (hit / 2), (long) max(0, dam + 2), (long) (monster[i].hitpoints / (dam + 2) + 1),
89 (long) ((hit + 2) / 2), (long) max(0, dam + 10), (long) (monster[i].hitpoints / (dam + 10) + 1),
90 (long) ((hit + 5) / 2), (long) max(0, dam + 20), (long) (monster[i].hitpoints / (dam + 20) + 1));
91 }
92
93 lprcat("\n\nHere's the list of available potions:\n\n");
94 for (i = 0; i < MAXPOTION; i++)
95 lprintf("%20s\n", &potionhide[i][1]);
96 lprcat("\n\nHere's the list of available scrolls:\n\n");
97 for (i = 0; i < MAXSCROLL; i++)
98 lprintf("%20s\n", &scrollhide[i][1]);
99 lprcat("\n\nHere's the spell list:\n\n");
100 lprcat("spell name description\n");
101 lprcat("-------------------------------------------------------------------------------------------\n\n");
102 for (j = 0; j < SPNUM; j++) {
103 lprc(' ');
104 lprcat(spelcode[j]);
105 lprintf(" %21s %s\n", spelname[j], speldescript[j]);
106 }
107
108 lprcat("\n\nFor the c[] array:\n");
109 for (j = 0; j < 100; j += 10) {
110 lprintf("\nc[%2ld] = ", (long) j);
111 for (i = 0; i < 9; i++)
112 lprintf("%5ld ", (long) c[i + j]);
113 }
114
115 lprcat("\n\nTest of random number generator ----------------");
116 lprcat("\n for 25,000 calls divided into 16 slots\n\n");
117
118 for (i = 0; i < 16; i++)
119 rndcount[i] = 0;
120 for (i = 0; i < 25000; i++)
121 rndcount[rund(16)]++;
122 for (i = 0; i < 16; i++) {
123 lprintf(" %5ld", (long) rndcount[i]);
124 if (i == 7)
125 lprc('\n');
126 }
127
128 lprcat("\n\n");
129 lwclose();
130 lcreat((char *) 0);
131 lprcat("Done Diagnosing . . .");
132 return (0);
133 }
134 /*
135 subroutine to count the number of occurrences of an object
136 */
137 int
dcount(l)138 dcount(l)
139 int l;
140 {
141 int i, j, p;
142 int k;
143 k = 0;
144 for (i = 0; i < MAXX; i++)
145 for (j = 0; j < MAXY; j++)
146 for (p = 0; p < MAXLEVEL; p++)
147 if (cell[p * MAXX * MAXY + i * MAXY + j].item == l)
148 k++;
149 return (k);
150 }
151
152 /*
153 subroutine to draw the whole screen as the player knows it
154 */
155 void
diagdrawscreen()156 diagdrawscreen()
157 {
158 int i, j, k;
159
160 for (i = 0; i < MAXY; i++)
161 /* for the east west walls of this line */
162 {
163 for (j = 0; j < MAXX; j++)
164 if (k = mitem[j][i])
165 lprc(monstnamelist[k]);
166 else
167 lprc(objnamelist[item[j][i]]);
168 lprc('\n');
169 }
170 }
171 #endif
172
173
174 /*
175 to save the game in a file
176 */
177 static time_t zzz = 0;
178 int
savegame(char * fname)179 savegame(char *fname)
180 {
181 int i, k;
182 struct sphere *sp;
183 struct stat statbuf;
184
185 nosignal = 1;
186 lflush();
187 savelevel();
188 ointerest();
189 if (lcreat(fname) < 0) {
190 lcreat((char *) 0);
191 lprintf("\nCan't open file <%s> to save game\n", fname);
192 nosignal = 0;
193 return (-1);
194 }
195 set_score_output();
196 lwrite((char *) beenhere, MAXLEVEL + MAXVLEVEL);
197 for (k = 0; k < MAXLEVEL + MAXVLEVEL; k++)
198 if (beenhere[k])
199 lwrite((char *) &cell[k * MAXX * MAXY], sizeof(struct cel) * MAXY * MAXX);
200 times(&cputime); /* get cpu time */
201 c[CPUTIME] += (cputime.tms_utime + cputime.tms_stime) / 60;
202 lwrite((char *) &c[0], 100 * sizeof(long));
203 lprint((long) gltime);
204 lprc(level);
205 lprc(playerx);
206 lprc(playery);
207 lwrite((char *) iven, 26);
208 lwrite((char *) ivenarg, 26 * sizeof(short));
209 for (k = 0; k < MAXSCROLL; k++)
210 lprc(scrollname[k][0]);
211 for (k = 0; k < MAXPOTION; k++)
212 lprc(potionname[k][0]);
213 lwrite((char *) spelknow, SPNUM);
214 lprc(wizard);
215 lprc(rmst); /* random monster generation counter */
216 for (i = 0; i < 90; i++)
217 lprc(itm[i].qty);
218 lwrite((char *) course, 25);
219 lprc(cheat);
220 lprc(VERSION);
221 for (i = 0; i < MAXMONST; i++)
222 lprc(monster[i].genocided); /* genocide info */
223 for (sp = spheres; sp; sp = sp->p)
224 lwrite((char *) sp, sizeof(struct sphere)); /* save spheres of
225 * annihilation */
226 time(&zzz);
227 lprint((long) (zzz - initialtime));
228 lwrite((char *) &zzz, sizeof(long));
229 if (fstat(io_outfd, &statbuf) < 0)
230 lprint(0L);
231 else
232 lprint((long) statbuf.st_ino); /* inode # */
233 lwclose();
234 lastmonst[0] = 0;
235 #ifndef VT100
236 setscroll();
237 #endif /* VT100 */
238 lcreat((char *) 0);
239 nosignal = 0;
240 return (0);
241 }
242
243 void
restoregame(char * fname)244 restoregame(char *fname)
245 {
246 int i, k;
247 struct sphere *sp, *sp2;
248 struct stat filetimes;
249 cursors();
250 lprcat("\nRestoring . . .");
251 lflush();
252 if (lopen(fname) <= 0) {
253 lcreat((char *) 0);
254 lprintf("\nCan't open file <%s>to restore game\n", fname);
255 nap(2000);
256 c[GOLD] = c[BANKACCOUNT] = 0;
257 died(-265);
258 return;
259 }
260 lrfill((char *) beenhere, MAXLEVEL + MAXVLEVEL);
261 for (k = 0; k < MAXLEVEL + MAXVLEVEL; k++)
262 if (beenhere[k])
263 lrfill((char *) &cell[k * MAXX * MAXY], sizeof(struct cel) * MAXY * MAXX);
264
265 lrfill((char *) &c[0], 100 * sizeof(long));
266 gltime = larn_lrint();
267 level = c[CAVELEVEL] = lgetc();
268 playerx = lgetc();
269 playery = lgetc();
270 lrfill((char *) iven, 26);
271 lrfill((char *) ivenarg, 26 * sizeof(short));
272 for (k = 0; k < MAXSCROLL; k++)
273 scrollname[k] = lgetc() ? scrollhide[k] : "";
274 for (k = 0; k < MAXPOTION; k++)
275 potionname[k] = lgetc() ? potionhide[k] : "";
276 lrfill((char *) spelknow, SPNUM);
277 wizard = lgetc();
278 rmst = lgetc(); /* random monster creation flag */
279
280 for (i = 0; i < 90; i++)
281 itm[i].qty = lgetc();
282 lrfill((char *) course, 25);
283 cheat = lgetc();
284 if (VERSION != lgetc()) { /* version number */
285 cheat = 1;
286 lprcat("Sorry, But your save file is for an older version of larn\n");
287 nap(2000);
288 c[GOLD] = c[BANKACCOUNT] = 0;
289 died(-266);
290 return;
291 }
292 for (i = 0; i < MAXMONST; i++)
293 monster[i].genocided = lgetc(); /* genocide info */
294 for (sp = 0, i = 0; i < c[SPHCAST]; i++) {
295 sp2 = sp;
296 sp = (struct sphere *) malloc(sizeof(struct sphere));
297 if (sp == 0) {
298 write(2, "Can't malloc() for sphere space\n", 32);
299 break;
300 }
301 lrfill((char *) sp, sizeof(struct sphere)); /* get spheres of
302 * annihilation */
303 sp->p = 0; /* null out pointer */
304 if (i == 0)
305 spheres = sp; /* beginning of list */
306 else
307 sp2->p = sp;
308 }
309
310 time(&zzz);
311 initialtime = zzz - larn_lrint();
312 /* get the creation and modification time of file */
313 fstat(io_infd, &filetimes);
314 lrfill((char *) &zzz, sizeof(long));
315 zzz += 6;
316 if (filetimes.st_ctime > zzz)
317 fsorry(); /* file create time */
318 else if (filetimes.st_mtime > zzz)
319 fsorry(); /* file modify time */
320 if (c[HP] < 0) {
321 died(284);
322 return;
323 } /* died a post mortem death */
324 oldx = oldy = 0;
325 /* XXX the following will break on 64-bit inode numbers */
326 i = larn_lrint(); /* inode # */
327 if (i && (filetimes.st_ino != (ino_t) i))
328 fsorry();
329 lrclose();
330 if (strcmp(fname, ckpfile) == 0) {
331 if (lappend(fname) < 0)
332 fcheat();
333 else {
334 lprc(' ');
335 lwclose();
336 }
337 lcreat((char *) 0);
338 } else if (unlink(fname) < 0)
339 fcheat(); /* can't unlink save file */
340 /* for the greedy cheater checker */
341 for (k = 0; k < 6; k++)
342 if (c[k] > 99)
343 greedy();
344 if (c[HPMAX] > 999 || c[SPELLMAX] > 125)
345 greedy();
346 if (c[LEVEL] == 25 && c[EXPERIENCE] > skill[24]) { /* if patch up lev 25
347 * player */
348 long tmp;
349 tmp = c[EXPERIENCE] - skill[24]; /* amount to go up */
350 c[EXPERIENCE] = skill[24];
351 raiseexperience((long) tmp);
352 }
353 getlevel();
354 lasttime = gltime;
355 }
356
357 /*
358 subroutine to not allow greedy cheaters
359 */
360 static void
greedy(void)361 greedy(void)
362 {
363 #if WIZID
364 if (wizard)
365 return;
366 #endif
367
368 lprcat("\n\nI am so sorry, but your character is a little TOO good! Since this\n");
369 lprcat("cannot normally happen from an honest game, I must assume that you cheated.\n");
370 lprcat("In that you are GREEDY as well as a CHEATER, I cannot allow this game\n");
371 lprcat("to continue.\n");
372 nap(5000);
373 c[GOLD] = c[BANKACCOUNT] = 0;
374 died(-267);
375 return;
376 }
377
378 /*
379 subroutine to not allow altered save files and terminate the attempted
380 restart
381 */
382 static void
fsorry(void)383 fsorry(void)
384 {
385 lprcat("\nSorry, but your savefile has been altered.\n");
386 lprcat("However, seeing as I am a good sport, I will let you play.\n");
387 lprcat("Be advised though, you won't be placed on the normal scoreboard.");
388 cheat = 1;
389 nap(4000);
390 }
391
392 /*
393 subroutine to not allow game if save file can't be deleted
394 */
395 static void
fcheat(void)396 fcheat(void)
397 {
398 #if WIZID
399 if (wizard)
400 return;
401 #endif
402
403 lprcat("\nSorry, but your savefile can't be deleted. This can only mean\n");
404 lprcat("that you tried to CHEAT by protecting the directory the savefile\n");
405 lprcat("is in. Since this is unfair to the rest of the larn community, I\n");
406 lprcat("cannot let you play this game.\n");
407 nap(5000);
408 c[GOLD] = c[BANKACCOUNT] = 0;
409 died(-268);
410 return;
411 }
412