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[dragonfly.git] / games / larn / diag.c
1 /*      diag.c          Larn is copyrighted 1986 by Noah Morgan. */
2 /* $FreeBSD: src/games/larn/diag.c,v 1.5 1999/11/16 02:57:21 billf Exp $ */
3 /* $DragonFly: src/games/larn/diag.c,v 1.5 2006/08/26 17:05:05 pavalos Exp $ */
4 #include <sys/types.h>
5 #include <sys/times.h>
6 #include <sys/stat.h>
7 #include "header.h"
8 extern int rmst,maxitm,lasttime;
9 static struct tms cputime;
10 /*
11         ***************************
12         DIAG -- dungeon diagnostics
13         ***************************
14
15         subroutine to print out data for debugging
16  */
17
18 static void     greedy(void);
19 static void     fsorry(void);
20 static void     fcheat(void);
21 #ifdef EXTRA
22 static int      dcount(int);
23 static void     drawdiagscreen(void);
24
25 static int rndcount[16];
26
27 int
28 diag(void)
29         {
30         int i,j;
31         int hit,dam;
32         cursors();  lwclose();
33         if (lcreat(diagfile) < 0)       /*      open the diagnostic file        */
34                 {
35                 lcreat((char*)0); lprcat("\ndiagnostic failure\n"); return(-1);
36                 }
37
38         write(1,"\nDiagnosing . . .\n",18);
39         lprcat("\n\nBeginning of DIAG diagnostics ----------\n");
40
41 /*      for the character attributes    */
42
43         lprintf("\n\nPlayer attributes:\n\nHit points: %2d(%2d)",(long)c[HP],(long)c[HPMAX]);
44         lprintf("\ngold: %d  Experience: %d  Character level: %d  Level in caverns: %d",
45                 (long)c[GOLD],(long)c[EXPERIENCE],(long)c[LEVEL],(long)level);
46         lprintf("\nTotal types of monsters: %d",(long)MAXMONST+8);
47
48         lprcat("\f\nHere's the dungeon:\n\n");
49
50         i=level;
51         for (j=0; j<MAXLEVEL+MAXVLEVEL; j++)
52                 {
53                 newcavelevel(j);
54                 lprintf("\nMaze for level %s:\n",levelname[level]);
55                 diagdrawscreen();
56                 }
57         newcavelevel(i);
58
59         lprcat("\f\nNow for the monster data:\n\n");
60         lprcat("   Monster Name      LEV  AC   DAM  ATT  DEF    GOLD   HP     EXP   \n");
61         lprcat("--------------------------------------------------------------------------\n");
62         for (i=0; i<=MAXMONST+8; i++)
63                 {
64                 lprintf("%19s  %2d  %3d ",monster[i].name,(long)monster[i].level,(long)monster[i].armorclass);
65                 lprintf(" %3d  %3d  %3d  ",(long)monster[i].damage,(long)monster[i].attack,(long)monster[i].defense);
66                 lprintf("%6d  %3d   %6d\n",(long)monster[i].gold,(long)monster[i].hitpoints,(long)monster[i].experience);
67                 }
68
69         lprcat("\n\nHere's a Table for the to hit percentages\n");
70         lprcat("\n     We will be assuming that players level = 2 * monster level");
71         lprcat("\n     and that the players dexterity and strength are 16.");
72         lprcat("\n    to hit: if (rnd(22) < (2[monst AC] + your level + dex + WC/8 -1)/2) then hit");
73         lprcat("\n    damage = rund(8) + WC/2 + STR - c[HARDGAME] - 4");
74         lprcat("\n    to hit:  if rnd(22) < to hit  then player hits\n");
75         lprcat("\n    Each entry is as follows:  to hit / damage / number hits to kill\n");
76         lprcat("\n          monster     WC = 4         WC = 20        WC = 40");
77         lprcat("\n---------------------------------------------------------------");
78         for (i=0; i<=MAXMONST+8; i++)
79                 {
80                 hit = 2*monster[i].armorclass+2*monster[i].level+16;
81                 dam = 16 - c[HARDGAME];
82                 lprintf("\n%20s   %2d/%2d/%2d       %2d/%2d/%2d       %2d/%2d/%2d",
83                                         monster[i].name,
84                                         (long)(hit/2),(long)max(0,dam+2),(long)(monster[i].hitpoints/(dam+2)+1),
85                                         (long)((hit+2)/2),(long)max(0,dam+10),(long)(monster[i].hitpoints/(dam+10)+1),
86                                         (long)((hit+5)/2),(long)max(0,dam+20),(long)(monster[i].hitpoints/(dam+20)+1));
87                 }
88
89         lprcat("\n\nHere's the list of available potions:\n\n");
90         for (i=0; i<MAXPOTION; i++)     lprintf("%20s\n",&potionhide[i][1]);
91         lprcat("\n\nHere's the list of available scrolls:\n\n");
92         for (i=0; i<MAXSCROLL; i++)     lprintf("%20s\n",&scrollhide[i][1]);
93         lprcat("\n\nHere's the spell list:\n\n");
94         lprcat("spell          name           description\n");
95         lprcat("-------------------------------------------------------------------------------------------\n\n");
96         for (j=0; j<SPNUM; j++)
97                 {
98                 lprc(' ');      lprcat(spelcode[j]);
99                 lprintf(" %21s  %s\n",spelname[j],speldescript[j]);
100                 }
101
102         lprcat("\n\nFor the c[] array:\n");
103         for (j=0; j<100; j+=10)
104                 {
105                 lprintf("\nc[%2d] = ",(long)j); for (i=0; i<9; i++) lprintf("%5d ",(long)c[i+j]);
106                 }
107
108         lprcat("\n\nTest of random number generator ----------------");
109         lprcat("\n    for 25,000 calls divided into 16 slots\n\n");
110
111         for (i=0; i<16; i++)  rndcount[i]=0;
112         for (i=0; i<25000; i++) rndcount[rund(16)]++;
113         for (i=0; i<16; i++)  { lprintf("  %5d",(long)rndcount[i]); if (i==7) lprc('\n'); }
114
115         lprcat("\n\n");                 lwclose();
116         lcreat((char*)0);               lprcat("Done Diagnosing . . .");
117         return(0);
118         }
119 /*
120         subroutine to count the number of occurrences of an object
121  */
122 static int
123 dcount(int l)
124         {
125         int i,j,p;
126         int k;
127         k=0;
128         for (i=0; i<MAXX; i++)
129                 for (j=0; j<MAXY; j++)
130                         for (p=0; p<MAXLEVEL; p++)
131                                 if (cell[p*MAXX*MAXY+i*MAXY+j].item == l) k++;
132         return(k);
133         }
134
135 /*
136         subroutine to draw the whole screen as the player knows it
137  */
138 static void
139 diagdrawscreen(void)
140         {
141         int i,j,k;
142
143         for (i=0; i<MAXY; i++)
144
145 /*      for the east west walls of this line    */
146                 {
147                 for (j=0; j<MAXX; j++)  if (k=mitem[j][i]) lprc(monstnamelist[k]); else
148                                                                 lprc(objnamelist[item[j][i]]);
149                 lprc('\n');
150                 }
151         }
152 #endif
153 \f
154 /*
155         to save the game in a file
156  */
157 static time_t zzz=0;
158
159 int
160 savegame(char *fname)
161         {
162         int i,k;
163         struct sphere *sp;
164         struct stat statbuf;
165         nosignal=1;  lflush();  savelevel();
166         ointerest();
167         if (lcreat(fname) < 0)
168                 {
169                 lcreat((char*)0); lprintf("\nCan't open file <%s> to save game\n",fname);
170                 nosignal=0;  return(-1);
171                 }
172
173         set_score_output();
174         lwrite((char*)beenhere,MAXLEVEL+MAXVLEVEL);
175         for (k=0; k<MAXLEVEL+MAXVLEVEL; k++)
176                 if (beenhere[k])
177                         lwrite((char*)&cell[k*MAXX*MAXY],sizeof(struct cel)*MAXY*MAXX);
178         times(&cputime);        /* get cpu time */
179         c[CPUTIME] += (cputime.tms_utime+cputime.tms_stime)/60;
180         lwrite((char*)&c[0],100*sizeof(long));
181         lprint((long)gtime);            lprc(level);
182         lprc(playerx);          lprc(playery);
183         lwrite((char*)iven,26); lwrite((char*)ivenarg,26*sizeof(short));
184         for (k=0; k<MAXSCROLL; k++)  lprc(scrollname[k][0]);
185         for (k=0; k<MAXPOTION; k++)  lprc(potionname[k][0]);
186         lwrite((char*)spelknow,SPNUM);           lprc(wizard);
187         lprc(rmst);             /*      random monster generation counter */
188         for (i=0; i<90; i++)    lprc(itm_[i].qty);
189         lwrite((char*)course,25);                       lprc(cheat);            lprc(VERSION);
190         for (i=0; i<MAXMONST; i++) lprc(monster[i].genocided); /* genocide info */
191         for (sp=spheres; sp; sp=sp->p)
192                 lwrite((char*)sp,sizeof(struct sphere));        /* save spheres of annihilation */
193         time(&zzz);                     lprint((long)(zzz-initialtime));
194         lwrite((char*)&zzz,sizeof(long));
195         if (fstat(lfd,&statbuf)< 0) lprint(0L);
196         else lprint((long)statbuf.st_ino); /* inode # */
197         lwclose();      lastmonst[0] = 0;
198 #ifndef VT100
199         setscroll();
200 #endif /* VT100 */
201         lcreat((char*)0);  nosignal=0;
202         return(0);
203         }
204
205 void
206 restoregame(char *fname)
207         {
208         int i,k;
209         struct sphere *sp,*sp2;
210         struct stat filetimes;
211         cursors(); lprcat("\nRestoring . . .");  lflush();
212         if (lopen(fname) <= 0)
213                 {
214                 lcreat((char*)0); lprintf("\nCan't open file <%s>to restore game\n",fname);
215                 nap(2000); c[GOLD]=c[BANKACCOUNT]=0;  died(-265); return;
216                 }
217
218         lrfill((char*)beenhere,MAXLEVEL+MAXVLEVEL);
219         for (k=0; k<MAXLEVEL+MAXVLEVEL; k++)
220                 if (beenhere[k])
221                         lrfill((char*)&cell[k*MAXX*MAXY],sizeof(struct cel)*MAXY*MAXX);
222
223         lrfill((char*)&c[0],100*sizeof(long));  gtime = lrint_x();
224         level = c[CAVELEVEL] = lgetc();
225         playerx = lgetc();              playery = lgetc();
226         lrfill((char*)iven,26);         lrfill((char*)ivenarg,26*sizeof(short));
227         for (k=0; k<MAXSCROLL; k++)  scrollname[k] = lgetc() ? scrollhide[k] : "";
228         for (k=0; k<MAXPOTION; k++)  potionname[k] = lgetc() ? potionhide[k] : "";
229         lrfill((char*)spelknow,SPNUM);          wizard = lgetc();
230         rmst = lgetc();                 /*      random monster creation flag */
231
232         for (i=0; i<90; i++)    itm_[i].qty = lgetc();
233         lrfill((char*)course,25);                       cheat = lgetc();
234         if (VERSION != lgetc())         /*  version number  */
235                 {
236                 cheat=1;
237                 lprcat("Sorry, But your save file is for an older version of larn\n");
238                 nap(2000); c[GOLD]=c[BANKACCOUNT]=0;  died(-266); return;
239                 }
240
241         for (i=0; i<MAXMONST; i++) monster[i].genocided=lgetc(); /* genocide info */
242         for (sp=0,i=0; i<c[SPHCAST]; i++)
243                 {
244                 sp2 = sp;
245                 sp = (struct sphere *)malloc(sizeof(struct sphere));
246                 if (sp==0) { write(2,"Can't malloc() for sphere space\n",32); break; }
247                 lrfill((char*)sp,sizeof(struct sphere));        /* get spheres of annihilation */
248                 sp->p=0;        /* null out pointer */
249                 if (i==0) spheres=sp;   /* beginning of list */
250                         else sp2->p = sp;
251                 }
252
253         time(&zzz);
254         initialtime = zzz-lrint_x();
255         fstat(fd,&filetimes);   /*      get the creation and modification time of file  */
256         lrfill((char*)&zzz,sizeof(long));       zzz += 6;
257         if (filetimes.st_ctime > zzz) fsorry(); /*      file create time        */
258         else if (filetimes.st_mtime > zzz) fsorry(); /* file modify time        */
259         if (c[HP]<0) { died(284); return; }     /* died a post mortem death */
260
261         oldx = oldy = 0;
262         i = lrint_x();  /* inode # */
263         if (i && (filetimes.st_ino!=(unsigned)i)) fsorry();
264         lrclose();
265         if (strcmp(fname,ckpfile) == 0)
266                 {
267                 if (lappend(fname) < 0) fcheat();  else { lprc(' '); lwclose(); }
268                 lcreat((char*)0);
269                 }
270         else if (unlink(fname) < 0) fcheat(); /* can't unlink save file */
271 /*      for the greedy cheater checker  */
272         for (k=0; k<6; k++) if (c[k]>99) greedy();
273         if (c[HPMAX]>999 || c[SPELLMAX]>125) greedy();
274         if (c[LEVEL]==25 && c[EXPERIENCE]>skill[24]) /* if patch up lev 25 player */
275                 {
276                 long tmp;
277                 tmp = c[EXPERIENCE]-skill[24]; /* amount to go up */
278                 c[EXPERIENCE] = skill[24];
279                 raiseexperience((long)tmp);
280                 }
281         getlevel();  lasttime=gtime;
282         }
283
284 /*
285         subroutine to not allow greedy cheaters
286  */
287 static void
288 greedy(void)
289         {
290 #if WIZID
291         if (wizard) return;
292 #endif
293
294         lprcat("\n\nI am so sorry, but your character is a little TOO good!  Since this\n");
295         lprcat("cannot normally happen from an honest game, I must assume that you cheated.\n");
296         lprcat("In that you are GREEDY as well as a CHEATER, I cannot allow this game\n");
297         lprcat("to continue.\n"); nap(5000);  c[GOLD]=c[BANKACCOUNT]=0;  died(-267); return;
298         }
299
300 /*
301         subroutine to not allow altered save files and terminate the attempted
302         restart
303  */
304 static void
305 fsorry(void)
306         {
307         lprcat("\nSorry, but your savefile has been altered.\n");
308         lprcat("However, seeing as I am a good sport, I will let you play.\n");
309         lprcat("Be advised though, you won't be placed on the normal scoreboard.");
310         cheat = 1;      nap(4000);
311         }
312
313 /*
314         subroutine to not allow game if save file can't be deleted
315  */
316 static void
317 fcheat(void)
318         {
319 #if WIZID
320         if (wizard) return;
321 #endif
322
323         lprcat("\nSorry, but your savefile can't be deleted.  This can only mean\n");
324         lprcat("that you tried to CHEAT by protecting the directory the savefile\n");
325         lprcat("is in.  Since this is unfair to the rest of the larn community, I\n");
326         lprcat("cannot let you play this game.\n");
327         nap(5000);  c[GOLD]=c[BANKACCOUNT]=0;  died(-268); return;
328         }