aboutsummaryrefslogtreecommitdiff
path: root/engines/glk/agt/agtread.cpp
blob: 7fce3294d7037d6c8d7e64dddd1168542ac87881 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "glk/agt/agility.h"

namespace Glk {
namespace AGT {

static void read_da6(fc_type fc);
static void check_cmd_version(void);
static void build_cmd_table(void);
static void fixcmd(integer *, int);

/* This parses the block of integers of a command to standardize
   the command numbers */
static short *cmd_table;  /* Holds the command translation table used
                 by fixcmd */
int topcmd;    /* The highest legal opcode in the current AGT version. */



static genfile fd_desc;  /* File pointer for description file. */
static long desc_size;  /* Size of description file. */

static int top_quest; /* Highest question actually referenced */
/* This is computed by fixcmd */

static int SL_NAME, SL_TEXT, SL_ROOM, SL_WORD;
static integer MAX_CMD_SIZE;

static rbool encrypt_desc = 1; /* Are descriptions encrypted? */


/* This translates v1.8 status mode codes into ME statue mode codes */
const uchar agt18_statmode[] = {0, 4, 3, 1};


/*-------------------------------------------------------------------------*/
/* Utilities to convert strings, do ASCII translation, etc. and to add     */
/*   words to the dictionary (the actual dictionary routines are in        */
/*   agtdata.c; these routines here are just wrappers that prepare words   */
/*   to be added).                                                         */
/*-------------------------------------------------------------------------*/



static void fatals(const char *msg, const char *fname) {
	Common::String str = Common::String::format(msg, fname);
	error("%s", str.c_str());
}


static word add_dic1(uchar *buff, int n) {
	char nbuff[100];

	int i;
	if (n > 100) n = 100;
	for (i = 0; i < buff[0] && i < n; i++)
		nbuff[i] = buff[i + 1];
	nbuff[i] = 0;
	return add_dict(nbuff);
}


static slist add_slist(uchar *buff) {
	int j, k;
	slist start_ptr;
	char nbuff[100];

	k = 0;
	start_ptr = synptr;
	if (buff[0] > 80) fatal("Invalid game file format");
	for (j = 1; j <= buff[0]; j++)
		if (rspace(buff[j]) && k > 0) {
			nbuff[k] = 0;
			addsyn(add_dict(nbuff));
			k = 0;
		} else nbuff[k++] = buff[j];
	if (k > 0) {
		nbuff[k] = 0;
		addsyn(add_dict(nbuff));
	}
	addsyn(-1);  /* End of list marker */
	return start_ptr;
}




/*-------------------------------------------------------------------------*/
/* Description file manipulation routines: routines to open and close the  */
/*   description file and read in individual descriptions.                 */
/*-------------------------------------------------------------------------*/

/* The memory-based stuff is not done yet */


void convert_agt_descr(uchar *s)
/* Convert encrypted pascal string into plaintext C string */
{
	int j, n;

	n = s[0];
	if (n > 80) {
		s[0] = 0;
		return;
	}

	if (encrypt_desc)
		for (j = 0; j < n; j++)
			if (s[j + 1] != ' ')
				s[j] = fixchar[(s[j + 1] - (j + 1) + 0x100) & 0xFF];
			else s[j] = ' ';
	else
		for (j = 0; j < n; j++)
			s[j] = fixchar[s[j + 1]];

	s[n] = 0;
}


void open_descr(fc_type fc) {
	const char *errstr;
	long i;
	int alpha, cnt;
	tline buff;

	fd_desc = readopen(fc, fDSS, &errstr);
	if (errstr != NULL)  fatal(errstr);
	desc_size = binsize(fd_desc);
	if (DIAG) {
		char *s;
		s = formal_name(fc, fDSS);
		rprintf("Opened file %s (size:%ld)\n", s, desc_size);
		rfree(s);
	}

	/* <Sigh> Now need to figure out if the input is encoded. Do this by
	     reading a few random lines and seeing if they "look" encoded */
	alpha = cnt = 0;
	if (aver > AGT135 || aver == AGTCOS)
		encrypt_desc = 1;
	else {
		binread(fd_desc, buff, 81, 1, &errstr); /* Throw away first line */
		while (cnt < 300) {
			if (!binread(fd_desc, buff, 81, 1, &errstr)) { /* EOF */
				writeln("");
				agtwarn("EOF while analyzing descriptions", 0);
				rprintf("......assuming type ");
				break;
			}
			if (buff[0] > 0 && buff[1] != ' ' && buff[1] > 0) /* To avoid "banner"
                               lines */
			{
				for (i = 1; i <= buff[0]; i++) {
					if (buff[i] >= 'A' && buff[i] <= 'z') alpha++;
					if (buff[i] != ' ') cnt++;
				}
			}
		}
		if (3 * cnt < 4 * alpha) {
			encrypt_desc = 0;
			if (aver == AGT135) aver = AGT12;
		} else encrypt_desc = 1;
	}
	if (DIAG) {
		if (encrypt_desc) rprintf(" [encrypted]\n");
		else rprintf("  [plaintext: %d/%d]\n", alpha, cnt);
	}

	mem_descr = NULL;
	if (desc_size <= descr_maxmem) {
		/* This is where we need to read the data in and convert it:
		   encrypted Pascal strings --> plaintext C strings */
		binseek(fd_desc, 0);
		mem_descr = (char *)rmalloc(desc_size);
		/* Read in the whole file */
		binread(fd_desc, mem_descr, desc_size, 1, &errstr);
		if (errstr != NULL) fatal(errstr);
		for (i = 0; i < desc_size; i += sizeof(tline))
			convert_agt_descr((uchar *)(mem_descr + i));
		/* Decode and convert to C string */
	}
}


void close_descr(void) {
	if (mem_descr != NULL)
		rfree(mem_descr);
	else {
		readclose(fd_desc);
		fd_desc = NULL;
	}
}


descr_line *agt_read_descr(long start, long len) {
	tline *d;
	descr_line *lines;
	long i;
	const char *errstr;

	if (len == -1 || start == -1) return NULL;
	lines = (descr_line *)rmalloc(sizeof(descr_line) * (len + 1));

	if (mem_descr != NULL) {
		d = ((tline *)mem_descr) + start;
		for (i = 0; i < len; i++)
			lines[i] = (char *)(d + i);
	} else {
		d = (tline *)rmalloc(sizeof(tline) * len);
		binseek(fd_desc, start * sizeof(tline));
		binread(fd_desc, d, sizeof(tline), len, &errstr);
		if (errstr != NULL) fatal(errstr);
		for (i = 0; i < len; i++) {
			lines[i] = (char *)(d + i);
			convert_agt_descr((uchar *)(d + i));
		}
	}
	lines[len] = NULL; /* Mark end of array */
	return lines;
}



/*-------------------------------------------------------------------------*/
/* Read DA2: The Room File.                                                */
/*-------------------------------------------------------------------------*/


#define seti(a) (room[i].a=buff[bp] | (buff[bp+1]<<8),bp+=2)
#define set32(a) (room[i].a=buff[bp] | (buff[bp+1]<<8) | (buff[bp+2]<<16)|\
                            (buff[bp+3]<<24), bp+=4)
#define setb(a) (room[i].a=buff[bp],bp++)

#define setstr(leng) (bp+=(leng),new_str((char*)buff+bp-(leng),(leng),1))
#define setd(leng) (bp+=(leng),add_dic1(buff+bp-(leng),(leng)))
#define setsl() (bp+=sizeof(tline),add_slist(buff+bp-sizeof(tline)))
#define nonecheck(leng) (memcmp(buff+bp,nonestr,5)==0)


static void read_da2(fc_type fc) {
	int i, j, numroom;
	uchar *buff; /* [FRS_ROOM];*/
	long bp;

	numroom = maxroom - first_room + 1;
	if (numroom < 0) return;
	room_name = (long *)rmalloc(numroom * sizeof(long));

	buffopen(fc, fDA2, FRS_ROOM, "room", numroom);

	bp = 0;
	for (i = 0; i < numroom; i++) {
		buff = buffread(i);
		bp = 0;
		if (nonecheck(SL_ROOM))
			room[i].unused = 1;
		else room[i].unused = 0;
		room_name[i] = setstr(SL_ROOM);
		room[i].replace_word = setd(SL_WORD);
		room[i].replacing_word = setsl();
		for (j = 0; j < 12; j++) seti(path[j]);

		if (aver >= AGT15) set32(flag_noun_bits); /* Menu flags */
		else room[i].flag_noun_bits = 0;

		if (aver >= AGTME10) set32(PIX_bits); /* PIX bits */
		else room[i].PIX_bits = 0;

		seti(path[12]); /* Special */

		/* There's a small possibility that the 1.5/Hotel flag_noun_bits
		goes here, rather than above; 1.5/F is known to go above */

		setb(seen);
		seti(key);
		setb(locked_door);
		if (room_inside != NULL)
			room_inside[i] = fixsign16(buff[bp], buff[bp + 1]);
		bp += 2; /* Skip # of nouns in this room */

		seti(points);
		seti(light);
		setb(end);
		setb(win);
		if (aver != AGT10) setb(killplayer); /* I'm guessing here */
		else room[i].killplayer = room[i].end;

		if (aver >= AGTME10) {
			seti(initdesc);
			seti(pict);
		} else {
			room[i].initdesc = 0;
			room[i].pict = 0;
		}
		if (aver >= AGTME15) room[i].autoverb = setd(SL_WORD);
		else room[i].autoverb = 0;
		room[i].oclass = 0;
		room[i].seen = 0;
	}
	if (DIAG)
		rprintf("   Internal:%ld\n", bp);
	buffclose();
}



/*-------------------------------------------------------------------------*/
/* Read DA3: The Noun File.                                                */
/*-------------------------------------------------------------------------*/

#undef seti
#undef setb
#define seti(a) (noun[i].a=buff[bp] | (buff[bp+1]<<8),bp+=2)
#define setb(a) (noun[i].a=buff[bp],bp++)

static void read_da3(fc_type fc) {
	int i, numnoun;
	long recsize;
	uchar *buff; /* [FRS_NOUN];*/
	long bp;

	numnoun = maxnoun - first_noun + 1;
	if (numnoun < 0) return;
	noun_sdesc = (long *)rmalloc(numnoun * sizeof(long));
	noun_pos = (long *)rmalloc(numnoun * sizeof(long));

	recsize = buffopen(fc, fDA3, FRS_NOUN, "noun", numnoun);
	if (aver == AGT15 && recsize > 263) aver = AGT15F;

	bp = 0;
	for (i = 0; i < numnoun; i++) {
		buff = buffread(i);
		bp = 0;
		if (nonecheck(SL_NAME)) {
			bp += SL_NAME;
			noun[i].name = 0;
			noun[i].unused = 1;
		} else {
			noun[i].name = setd(SL_NAME);
			noun[i].unused = 0;
		}
		noun_sdesc[i] = setstr(SL_TEXT);
		noun[i].adj = setd(SL_NAME);

		if (aver >= AGT15F) seti(initdesc);
		else noun[i].initdesc = 0;

		setb(plural);
		/* The following is a guess for ME games */
		noun_pos[i] = setstr((ver == 3) ? SL_ROOM : SL_NAME);
		setb(something_pos_near_noun); /* These may not be valid */
		seti(nearby_noun);          /* in masters ed. */

		setb(has_syns);
		noun[i].syns = setsl(); /*,SL_TEXT);*/
		if (aver >= AGT15)
			noun[i].related_name = setd(SL_NAME);
		else
			noun[i].related_name = 0;
		seti(location);
		seti(weight);
		seti(size);
		seti(key);
		/* All of following flags known to be valid except
		   pullable, on, and win */
		setb(pushable);
		setb(pullable);
		setb(turnable);
		setb(playable);
		setb(readable);
		setb(on);
		setb(closable);
		setb(open);
		setb(lockable);
		setb(locked);
		setb(edible);
		setb(wearable);
		setb(drinkable);
		setb(poisonous);
		setb(movable);
		setb(light);
		setb(shootable);
		seti(num_shots);
		seti(points);
		if (noun_inside != NULL)
			noun_inside[i] = fixsign16(buff[bp], buff[bp + 1]);
		bp += 2; /* Skip # of nouns contained in this one */
		setb(win);
		if (ver == 3) seti(pict);
		else noun[i].pict = 0;
		noun[i].oclass = 0; /* AGT games don't support classes */
		noun[i].isglobal = 0;
		noun[i].flagnum = 0;
		noun[i].seen = 0;
		noun[i].proper = 0;
	}
	if (DIAG)
		rprintf("   Internal:%ld\n", bp);
	buffclose();
}


#undef seti
#undef setb
#define seti(a) (creature[i].a=buff[bp] | (buff[bp+1]<<8),bp+=2)
#define setb(a) (creature[i].a=buff[bp],bp++)



/*-------------------------------------------------------------------------*/
/* Read DA4: The Creature File.                                            */
/*-------------------------------------------------------------------------*/

static void read_da4(fc_type fc) {
	int i, numcreat;
	uchar *buff; /* [FRS_CREAT];*/
	long bp;

	numcreat = maxcreat - first_creat + 1;
	if (numcreat <= 0) return;
	creat_sdesc = (long *)rmalloc(numcreat * sizeof(long));

	buffopen(fc, fDA4, FRS_CREAT, "creature", numcreat);

	bp = 0;
	for (i = 0; i < numcreat; i++) {
		buff = buffread(i);
		bp = 0;
		if (nonecheck(SL_NAME)) {
			bp += SL_NAME;
			creature[i].name = 0;
			creature[i].unused = 1;
		} else {
			creature[i].name = setd(SL_NAME);
			creature[i].unused = 0;
		}
		creat_sdesc[i] = setstr(SL_TEXT);
		creature[i].adj = setd(SL_NAME);
		if (ver == 3) seti(initdesc);
		else creature[i].initdesc = 0;
		setb(has_syns);
		creature[i].syns = setsl();
		setb(groupmemb);
		seti(location);
		seti(weapon);
		setb(hostile);
		seti(points);
		if (creat_inside != NULL)
			creat_inside[i] = fixsign16(buff[bp], buff[bp + 1]);
		bp += 2; /* Skip # of nouns the creature is carrying */
		seti(counter);
		seti(threshold);
		seti(timethresh);
		seti(timecounter);
		setb(gender);
		if (ver == 3) seti(pict);
		else creature[i].pict = 0;
		creature[i].oclass = 0; /* AGT games don't support classes */
		creature[i].isglobal = 0;
		creature[i].flagnum = 0;
		creature[i].seen = 0;
		creature[i].proper = 0;
	}
	if (DIAG)
		rprintf("   Internal:%ld\n", bp);
	buffclose();
}

#undef seti
#undef setb




/*-------------------------------------------------------------------------*/
/* Read Commands (DA5 and DA6) and convert them to a uniform internal      */
/*   format.                                                               */
/*-------------------------------------------------------------------------*/


static int translate_vnum(int vnum)
/* actor is a numerical index occuring at the beginning of each command.
 In general, it contains the verb number of the verb associated with
   this command; because of AGiliTy's dictionary organization, we don't
   really need this (the verb itself will be converted to a number anyhow),
   but the field contains other useful information as well:
 i)If this command header is really the object of a redirection command,
   then the actor will have 1000 or 2000 added to it, depending on
   AGT version.
 ii)If this command is directed at an actor, then the creature number
   will be in this field instead of the verb number.
     Commands directed to ANYBODY have one plus the maximum verb number
   in this field (a hassle since the maximum verb number depends on
   AGT version: Classic:106, Master's:123); EVERYONE is the next
   code after ANYBODY.
 What this routine does is rationalize the differences between AGT versions.
  --Verb values (ie. not referring to creatures) are converted to 1.
  --Redirections are marked by multiplying by negative one and setting
          cmdsize to 0.
  --ANYBODY is set to 2
  --EVERYBODY is set to 3
*/
{
	rbool redir; /* Is this command redirected? */
	integer anycode;
	int redir_val;

	/* Earlier games use 1000 as redirect value, later games use 2000: */
	/* We strip it off, but remember whether it was there or not so we
	   can restore this information later. */
	redir_val = (aver <= AGT18MAX ? 1000 : 2000);
	if (vnum >= redir_val) {
		vnum = vnum % redir_val;
		redir = 1;
	} else redir = 0;

	anycode = (aver <= AGT18MAX) ? 106 : 123;

	/* Now to correct ANYBODY to something consistent and set verb
	   references to 1 since we don't need them and they just confuse things */
	if (vnum < anycode) vnum = 1; /* "player" */
	else if (vnum == anycode) vnum = 2; /* ANYBODY */
	else if (vnum == anycode + 1) vnum = 3; /* EVERYBODY */

	/* Finally restore redirection info. We now use the sign of vnum
	   to indicate this.*/
	if (redir) vnum = -vnum;

	return vnum;
}


#define CREC_SIZE (FRS_CMD)

static long badtokcnt;

static void read_da5(fc_type fc) {
	long i, j;
	uchar *buff; /* [CREC_SIZE];*/
	long bp;

	if (!have_meta) return;
	if (last_cmd <= 0)
		fatal("Bogus last_cmd");

	buffopen(fc, fDA5, CREC_SIZE, "command", last_cmd);

	if (aver >= AGT15F) cmd_ptr = (long *)rmalloc(sizeof(long) * last_cmd);
	else cmd_ptr = NULL;

	bp = 0;
	for (i = 0; i < last_cmd; i++) {
		buff = buffread(i);
		command[i].actor = translate_vnum(buff[0] + (buff[1] << 8));
		bp = 2;
		command[i].verbcmd = setd(SL_WORD);
		command[i].nouncmd = setd(SL_WORD);
		if (aver >= AGTME10)
			command[i].prep = setd(SL_WORD);
		else command[i].prep = 0;
		command[i].objcmd = setd(SL_WORD);
		command[i].noun_adj = command[i].obj_adj = 0;
		command[i].noun_obj = command[i].obj_obj = 0;
		if (aver < AGT15F) {
			command[i].data = (integer *)rmalloc(MAX_CMD_SIZE * sizeof(integer));
			for (j = 0; j < MAX_CMD_SIZE; j++)
				command[i].data[j] = fixsign16(buff[bp + 2 * j], buff[bp + 2 * j + 1]);
			bp += 2 * MAX_CMD_SIZE;
			command[i].cmdsize = MAX_CMD_SIZE;
		} else {
			cmd_ptr[i] = (long)buff[bp] + (((long)buff[bp + 1]) << 8);
			bp += 2;
		}
	}
	if (DIAG)
		rprintf("     Internal:%ld\n", bp);
	buffclose();

	/* Now to read in DA6 for versions that have it */
	if (aver >= AGT15F) read_da6(fc);
	check_cmd_version();  /* This uses the opcodes to check gamefile
               version information and change it if neccesary. */
	build_cmd_table();   /* Create the command translation table for
             this version of AGT. */

	badtokcnt = 0;
	if (!RAW_CMD_OUT)
		for (i = 0; i < last_cmd; i++)
			fixcmd(command[i].data, command[i].cmdsize);
	rfree(cmd_table);
	if (badtokcnt > MAX_BADTOK)
		agtnwarn("Total number of bad opcodes:", badtokcnt, 1);
}



static void read_da6(fc_type fc)
/* This will only be called for versions with a DA6 file--
   i.e. Master's Edition and proto-ME games. */
{
	genfile fda6;
	char *fullname;
	const char *errstr;
	long fsize; /* Size of the file */
	long frame; /* The first element of the file that is in the buffer. */
	uchar *cbuf;  /* Buffer */
	long cfile_size, cbuf_size; /* Number of tokens in file and in buffer */
	long i, j;
	long cmdstart, cmdend;   /* Marks the start and end of the current command */
	long ip;  /* Points to instruction in cmd.data[] that we are writing to */
	long bp;  /* Pointer into buffer */
	long endp;  /* Used to indicate end of current read loop
           (with an infinite buffer, this would always be an adjusted
           cmdend) */
	long adj_cbuf_size;  /* Stores number of bytes actually read in to cbuf */

	fda6 = openbin(fc, fDA6, "Could not open code file '%s'.", 1);
	fsize = binsize(fda6);
	fullname = formal_name(fc, fDA6);
	if (DIAG) rprintf("Reading code file %s (size:%ld)\n", fullname, fsize);

	if (aver == AGT15F && fsize == 20000) aver = AGT16;
	if (aver >= AGTME10) cfile_size = 20000;
	else if (aver == AGT16) cfile_size = 10000;
	else cfile_size = 5000;

	if (fsize != 2 * cfile_size)
		fatals("Code file %s is the wrong size.", fullname);

	cbuf_size = (cfile_size < CBUF_SIZE) ? cfile_size : CBUF_SIZE;
	cbuf = (uchar *)rmalloc(2 * cbuf_size);
	frame = cfile_size + 1; /* Guarentee frame will be wrong */

	for (i = 0; i < last_cmd; i++)
		if (cmd_ptr[i] >= 2) {
			for (j = i + 1; j < last_cmd && cmd_ptr[j] <= cmd_ptr[i]; j++);
			if (j < last_cmd) cmdend = cmd_ptr[j];
			else cmdend = cfile_size;
			if (cmdend > cfile_size) fatals("Code file overrun(%s)", fullname);
			--cmdend;
			cmdstart = cmd_ptr[i] - 1;
			command[i].cmdsize = cmdend - cmdstart;
			command[i].data = (integer *)rmalloc(command[i].cmdsize * sizeof(integer));

			ip = 0;
			bp = cmdstart - frame;
			adj_cbuf_size = cbuf_size;

			while (ip < command[i].cmdsize) {
				if (bp < 0 || bp >= adj_cbuf_size) { /* Read in new block */
					frame = frame + bp;
					binseek(fda6, frame * 2);
					if (frame + cbuf_size <= cfile_size)
						adj_cbuf_size = cbuf_size;
					else
						adj_cbuf_size = cfile_size - frame;
					if (adj_cbuf_size <= 0) fatal("Unexpected end of file.");
					if (!binread(fda6, cbuf, 2, adj_cbuf_size, &errstr))
						fatal(errstr);
					bp = 0;
				}
				endp = cmdend - frame;
				if (endp > cbuf_size) endp = cbuf_size;
				for (; bp < endp; ip++, bp++)
					command[i].data[ip] = fixsign16(cbuf[bp * 2L], cbuf[bp * 2L + 1]);
			}
		} else {
			command[i].data = NULL;
			command[i].cmdsize = 0;
		}
	rfree(cbuf);
	readclose(fda6);
	rfree(fullname);
}





static int check_endcmd(void)
/* What is the most common last byte for metacommands? Except
 under very abnormal situations, this should be the EndCmd opcode */
{
	int count[MAX_TOKEN_ID + 1];
	int i, tok, maxcnt, maxtok;
	/* int nextcnt; */

	for (i = 0; i <= MAX_TOKEN_ID; i++) count[i] = 0;
	for (i = 0; i < last_cmd; i++)
		if (command[i].cmdsize > 0) {
			tok = command[i].data[command[i].cmdsize - 1];
			if (tok >= 0 && tok <= MAX_TOKEN_ID) count[tok]++;
		}
	maxcnt = maxtok = 0; /* nextcnt=0;*/
	for (i = 0; i <= MAX_TOKEN_ID; i++)
		if (count[i] >= maxcnt) {
			/*      nextcnt=maxcnt; */
			maxcnt = count[i];
			maxtok = i;
		}
	return maxtok;
}

static int compute_endcode(int ver_)
/* Computes the correct endcode for a given gamefile version  */
{
	int i;

	for (i = 0; FIX_LIST[ver_][i].tnew != -1; i++);
	return (FIX_LIST[ver_][i].told - 3); /* -3 to get to EndCmd */
}


static void check_cmd_version(void)
/* Run through the commands looking at the last legal byte. This is
   normally the EndCmd token code, which can give us info on which
   token encoding scheme is being used. */
{
	int endcode;

	endcode = check_endcmd();
	if (DIAG) rprintf("  (EndCmd=%d)\n", endcode);
	if (endcode < 150) return; /* No metacommands, or something else is wrong. */
	if (endcode == compute_endcode(aver)) return; /* We're okay */

	/* Check for the special cases we know about */
	if (aver == AGT135) {
		if (endcode == compute_endcode(AGT182)) {
			aver = AGT182;
			return;
		} else if (endcode == compute_endcode(AGT118)) {
			aver = AGT118;
			return;
		}
	}
	if (aver == AGTME10)
		if (endcode == compute_endcode(AGTME10A)) {
			aver = AGTME10A;
			return;
		}
	if (aver == AGTMAST)
		if (endcode == compute_endcode(AGTME155)) {
			aver = AGTME155;
			return;
		}

	/* If we still haven't fixed the problem, print out a warning and
	 pray. */
	agtnwarn("Game has invalid EndCmd: ", endcode, 1);
}



static void build_cmd_table(void) {
	int told, tnew, fp;
	const cmd_fix_rec *fixtbl;

	topcmd = compute_endcode(aver) + 3;
	cmd_table = (short *)rmalloc(sizeof(short) * topcmd);

	fixtbl = FIX_LIST[aver];
	fp = 0; /* Pointer into fix table */
	tnew = 0; /* This shouldn't be neccessary */
	for (told = 0; told < topcmd;) {
		if (told == fixtbl[fp].told) tnew = fixtbl[fp++].tnew;
		cmd_table[told++] = tnew++;
	}
}



static void badtokerr(const char *s, int tok) {
	if (++badtokcnt <= MAX_BADTOK) agtnwarn(s, tok, 1);
}

static void fixcmd(integer *clist, int cnt)
/* Okay, we need to go through the elements of clist (which is an array,
  actually), figure out which ones are commands (as opposed to arguments)
  and tweak them to hide version differences. */
{
	long ip;

	/* Now need to go through and adjust opcodes. */
	for (ip = 0; ip < cnt; ip++)
		if (clist[ip] >= topcmd || clist[ip] < 0)
			badtokerr("Invalid token found: ", clist[ip]);
		else {

			clist[ip] = cmd_table[clist[ip]]; /* Translate */

			/* Now increment ip by the length of the instruction */
			/* Remember that we are already incrementing by one automatically */

			if (clist[ip] >= END_ACT) break; /* CMD end marker */
			if (clist[ip] <= MAX_COND)
				ip += cond_def[clist[ip]].argnum;
			else if (clist[ip] < WIN_ACT) {
				if (clist[ip] == 1087 && ip + 1 < cnt) /* AskQuestion: Adjust top_quest */
					if (top_quest < clist[ip + 1]) top_quest = clist[ip + 1];
				ip += act_def[clist[ip] - START_ACT].argnum;
			}
			/* else do nothing */
		}
}





/*-------------------------------------------------------------------------*/
/* DA1 Reading Utilites: routines to read the various lines of the DA1 file */
/*-------------------------------------------------------------------------*/

static void chop_newline(char *s)
/* Remove trailing \r,\n, etc. characters */
{
	char *t;

	for (t = s; *t != 0; t++); /* Find the end of the string */
	for (; t >= s && (*t == 0 || *t == '\r' || *t == '\n'); t--);
	*(t + 1) = 0;
}

static void fix_answer(char *s)
/* Put answer s into standard format: all lower case and with trailing/
   following whitespace removed */
{
	char *t, *p;

	for (t = s; *t != 0; t++)
		*t = tolower(*t);
	/* Eliminate trailing space and newlines */
	for (; t >= s && (*t == 0 || rspace(*t)); t--);
	*(t + 1) = 0;
	/* Eliminate leading space and newlines */
	for (t = s; rspace(*t); t++);
	if (t != s) {
		for (p = s; *t != 0;)
			*(p++) = *(t++);
		*p = 0;
	}
}


static char linebuffer[81];
static int bhold;
static int linenum;
static rbool unexpected_eof;

static void read_line(genfile fd, const char *typestr)
/* Read a line into buffer, unless bhold=1 in which case we want
   to use the last line read */
{
	if (bhold == 0) {
		readln(fd, linebuffer, 80);
		if (linebuffer[0] == 0 && texteof(fd)) {
			unexpected_eof = 1;
			strcpy(linebuffer, ">End Of File<");
		} else chop_newline(linebuffer);
		linenum++;
	}
	if (debug_da1 && typestr != NULL) {
		rprintf("%s %4d:%s", typestr, linenum, linebuffer);
		if (bhold) rprintf("     *");
		writeln("");
	}
	bhold = 0;
}


static void report(const char *s, genfile fd) {
	if (DIAG) rprintf("REPORT:%s at %d\n", s, linenum);
}

static int isbool(genfile fd) {
	read_line(fd, NULL);
	bhold = 1;
	return (strncasecmp(linebuffer, "TRUE", 4) == 0 ||
	        strncasecmp(linebuffer, "FALSE", 5) == 0);
}

static int isnum(genfile fd) {
	char *errstr;

	read_line(fd, NULL);
	bhold = 1;
	(void)strtol(linebuffer, &errstr, 10);
	while (*errstr == '\n' || *errstr == '\r') errstr++;
	if (debug_da1)
		rprintf("NUMCHK: %s==>%c\n", linebuffer, *errstr);
	return (*errstr == '\0');
}

static rbool readrbool(genfile fd) {
	read_line(fd, "BOOL");
	return (strncasecmp(linebuffer, "TRUE", 4) == 0);
}


static long readnum(genfile fd) {
	read_line(fd, "NUM ");
	return strtol(linebuffer, NULL, 10);
}


static void readptr(genfile fd, descr_ptr *desc) {
	read_line(fd, "PTR ");
	desc->start = strtol(linebuffer, NULL, 10);
	read_line(fd, "LEN");
	desc->size = strtol(linebuffer, NULL, 10);
}


static void readjunk(genfile fd) {
	read_line(fd, "JUNK");
}

static void readtext(genfile fd, tline s) {
	read_line(fd, "TEXT");
	strncpy((char *)s, linebuffer, 80);
	s[80] = 0;
}

static long readfname(genfile fd) {
	read_line(fd, "FILE");
	return new_str(linebuffer, 0, 0);
	/* Copy filename string to static string space and return index */
}

static word readdict(genfile fd) {
	read_line(fd, "DICT");
	return add_dict(linebuffer);
}


static slist readslist(genfile fd) { /* Read in synonym list line */
	slist start_ptr;
	char nbuff[50];
	int j, k;

	start_ptr = synptr;
	read_line(fd, "SYN ");
	/* Need to see if it is none or * terminated.  */
	for (j = 0; linebuffer[j] != 0 && linebuffer[j] != '*'; j++);
	linebuffer[j] = 0;
	k = 0;
	for (j = 0; linebuffer[j] != 0; j++)
		if (rspace(linebuffer[j]) && k > 0) {
			nbuff[k] = 0;
			addsyn(add_dict(nbuff));
			k = 0;
		} else if (!rspace(linebuffer[j]))
			nbuff[k++] = linebuffer[j];
	if (k > 0) {
		nbuff[k] = 0;
		addsyn(add_dict(nbuff));
	}
	addsyn(-1);
	return start_ptr;
}



/*-------------------------------------------------------------------------*/
/* Version analysis: Utilities to analyse the file format version and      */
/*   deduce sizes.                                                         */
/*-------------------------------------------------------------------------*/

static int soggy_test(fc_type fc) {
	genfile fda3;
	long fsize;

	if (DIAG) {
		char *s;
		s = formal_name(fc, fDA3);
		rprintf("Testing %s for abnormal noun organization....", s);
		rfree(s);
	}
	fda3 = openbin(fc, fDA3, "Could not find room file '%s'.", 1);
	fsize = binsize(fda3);
	readclose(fda3);

	if (fsize % (maxnoun - 300 + 1) != 0) {
		if (DIAG) rprintf("FOUND!\n");
		return 1;
	}
	if (fsize / (maxnoun - 300 + 1) > 300) {
		if (DIAG) rprintf("FOUND!\n");
		return 1;
	}
	if (DIAG) rprintf("nope.\n");
	return 0;
}


static void deduce_sizes(fc_type fc, rbool diag)
/* If diag is true, we will also allocate space for
noun inside information; this is used by agtout */
{
	if (ver == 0) {
		ver = 1;
		if (maxroom >= 200) ver = 2;
		else if (maxnoun != 0)
			if (maxnoun < 300)
				if (maxcreat != 0)
					if (maxcreat >= 500) ver = 4; /* SOGGY */
					else ver = 1;  /* Small */
				else if (aver == AGTCOS) ver = 4; /* SOGGY */
				else ver = 1; /* Small */
			else if (aver != AGTCOS) ver = 2; /* Large */
			else if (soggy_test(fc)) ver = 4;
			else ver = 2;
		else if (maxcreat != 0)
			if (maxcreat >= 500)
				if (aver != AGTCOS) ver = 2; /* Large */
				else if (soggy_test(fc)) ver = 4; /* Either large or SOGGY */
				else ver = 2;
			else ver = 1; /* Small */
		else
			agtwarn("No nouns or creatures: unable to determine version."
			        "\nAssuming AGT Small", 0);
	}

	if (aver < AGTME15)
		MaxQuestion = 25;
	else
		MaxQuestion = 100; /* This is a guess. */
	if (aver == AGTCOS)
		MaxQuestion = 10;
	if (aver == AGT15 || aver == AGT15F)
		MaxQuestion = 57;
	first_room = 2;
	if (ver == 1) {
		first_noun = 200;
		first_creat = 300;
		last_obj = 399;
		last_message = 250;
	} else { /* ver 2 or 3 or 4 */
		if (ver != 4)
			first_noun = 300;
		else first_noun = 200;
		first_creat = 500;
		last_obj = 699;
		if (aver <= AGT12) last_message = 500;
		else if (aver < AGTME155) last_message = 600;
		else last_message = 800;
	}
	if (aver == AGTCOS) {
		if (ver == 4) last_obj = 610;
		else last_obj = 599;
		if (ver == 4) last_message = 810; /* Soggy case */
		else last_message = 700;
	}

	if (aver >= AGT18 && aver <= AGT18MAX) {
		bold_mode = 1;
		build_fixchar();
		fixchar['\\'] = FORMAT_CODE;
	}

	if (aver < AGTME10) {
		SL_TEXT = 81;
		SL_NAME = SL_WORD = 23;
		SL_ROOM = 31;
	} else {
		SL_TEXT = 81;
		SL_NAME = SL_WORD = 16;
		SL_ROOM = 31;
	}
	if (aver == AGT15 || aver == AGT15F) SL_NAME = SL_WORD = 16;

	if (aver >= AGTME10) {
		MAX_USTR = 25;
		MAX_SUB = 15;
	} else MAX_SUB = MAX_USTR = 0;

	if (aver >= AGT15)
		NUM_ERR = 185; /* Number of standard error messages */
	else
		NUM_ERR = 0;

	DVERB = 50;
	FLAG_NUM = 255;
	CNT_NUM = VAR_NUM = 50;
	exitmsg_base = 1000;

	num_rflags = num_nflags = num_cflags = 0;
	num_rprops = num_nprops = num_cprops = 0;
	objflag = NULL;
	objprop = NULL;
	attrtable = NULL;
	proptable = NULL;
	oflag_cnt = 0;
	oprop_cnt = 0;
	propstr = NULL;
	propstr_size = 0;
	vartable = NULL;
	flagtable = NULL;



	/* Now to allocate space for all of the 'immortal' data structures */
	/* We do this all at once to avoid fragmentation; all of the following
	   will be around for the life of the program (unless we restart) and so
	   should be allocated first */

	synlist = (slist *)rmalloc(sizeof(slist) * TOTAL_VERB);
	comblist = NULL; /* The original AGT didn't support multi-word verbs */
	num_comb = 0;
	userprep = NULL; /* ... nor did it allow user-defined prepostions */
	num_prep = 0;

	if (numglobal > 0)
		globalnoun = (word *)rmalloc(numglobal * sizeof(word));

	if (aver < AGTME15 && aver != AGT10) {
		question = (tline *)rmalloc(MaxQuestion * sizeof(tline));
		answer = (tline *)rmalloc(MaxQuestion * sizeof(tline));
	} else if (aver >= AGTME15) {
		quest_ptr = (descr_ptr *)rmalloc(MaxQuestion * sizeof(descr_ptr));
		ans_ptr = (descr_ptr *)rmalloc(MaxQuestion * sizeof(descr_ptr));
	}
	msg_ptr = (descr_ptr *)rmalloc((last_message) * sizeof(descr_ptr));

	if (maxroom >= first_room) {
		room = (room_rec *)rmalloc((maxroom - first_room + 1) * sizeof(room_rec));
		room_ptr = (descr_ptr *)rmalloc((maxroom - first_room + 1) * sizeof(descr_ptr));
		help_ptr = (descr_ptr *)rmalloc((maxroom - first_room + 1) * sizeof(descr_ptr));
		special_ptr = (descr_ptr *)rmalloc((maxroom - first_room + 1) * sizeof(descr_ptr));
		if (diag) room_inside = (integer *)rmalloc((maxroom - first_room + 1) * sizeof(integer));
	}

	if (maxnoun >= first_noun) {
		noun = (noun_rec *)rmalloc((maxnoun - first_noun + 1) * sizeof(noun_rec));
		noun_ptr = (descr_ptr *)rmalloc((maxnoun - first_noun + 1) * sizeof(descr_ptr));
		push_ptr = (descr_ptr *)rmalloc((maxnoun - first_noun + 1) * sizeof(descr_ptr));
		pull_ptr = (descr_ptr *)rmalloc((maxnoun - first_noun + 1) * sizeof(descr_ptr));
		text_ptr = (descr_ptr *)rmalloc((maxnoun - first_noun + 1) * sizeof(descr_ptr));
		turn_ptr = (descr_ptr *)rmalloc((maxnoun - first_noun + 1) * sizeof(descr_ptr));
		play_ptr = (descr_ptr *)rmalloc((maxnoun - first_noun + 1) * sizeof(descr_ptr));
		if (diag) noun_inside = (integer *)rmalloc((maxnoun - first_noun + 1) * sizeof(integer));
	}

	if (maxcreat >= first_creat) {
		creature = (creat_rec *)rmalloc((maxcreat - first_creat + 1) * sizeof(creat_rec));
		creat_ptr = (descr_ptr *)rmalloc((maxcreat - first_creat + 1) * sizeof(descr_ptr));
		ask_ptr = (descr_ptr *)rmalloc((maxcreat - first_creat + 1) * sizeof(descr_ptr));
		talk_ptr = (descr_ptr *)rmalloc((maxcreat - first_creat + 1) * sizeof(descr_ptr));
		if (diag) creat_inside = (integer *)rmalloc((maxcreat - first_creat + 1) * sizeof(integer));
	}

	if (aver >= AGTME10) {
		userstr = (tline *)rmalloc(MAX_USTR * sizeof(tline));
		sub_name = (word *)rmalloc(MAX_SUB * sizeof(word));
	}
	command = (cmd_rec *)rmalloc(sizeof(cmd_rec) * last_cmd);

	if (aver >= AGT15)
		err_ptr = (descr_ptr *)rmalloc(NUM_ERR * sizeof(descr_ptr));


	reinit_dict(); /* The dictionary grows dynamically so we want to
            allocate it AFTER we have allocated all the permenent
            things */
}




/*-------------------------------------------------------------------------*/
/* Read DA1: The Info file; this is a text file containing a miscellany of */
/*   game information that wouldn't fit elsewhere                          */
/*-------------------------------------------------------------------------*/

static int try_read_da1(fc_type fc, genfile fda1, rbool diag)
/* Returns new aver value to try, or 0 on success. */
/* diag determines if noun inside info will be read */
/* VER values: 1=Small
               2=Large
           3=Master's Edition
           4="Soggy Large", with a larger last_room
*/
/* AVER values: see agility.h for the current values */
/* NOTE:  This routine is allowed to set *ver*, but is not allowed to
   change *aver*; should it be neccessary to change *aver*, then the routine
   should return the new *aver* value.
  (The only exception to this is in the very beginning-- and that may get
     changed)
  [This is done to allow the user to force a version number]
*/
{
	int i;

	MAX_CMD_SIZE = 30;
	maxpict = maxpix = maxfont = maxsong = 0;
	linenum = 0;
	bhold = 0;
	game_sig = 0;
	unexpected_eof = 0;

	if (aver == 0 && isbool(fda1)) aver = AGTMAST;
	/* From this point on can assume ME detected */

	freeze_mode = 0; /* The default values */
	if (aver >= AGTME10) { /* 2 rbool */
		debug_mode = readrbool(fda1); /* DEBUG */
		if (aver >= AGTME15) {
			if (!isbool(fda1)) aver = AGTME10;
			else freeze_mode = readrbool(fda1);
		} /* FREEZE */
		ver = 3;
	}

	start_room = readnum(fda1);
	treas_room = readnum(fda1);
	if (aver != AGT10) resurrect_room = readnum(fda1);
	else resurrect_room = start_room;
	if (aver >= AGTME10) { /* 4 int */
		score_mode = readnum(fda1); /* Score option */
		statusmode = readnum(fda1); /* Status option */
		startup_time = readnum(fda1); /* Starting time */
		delta_time = readnum(fda1); /* Delta_time */
	} else {
		score_mode = statusmode = 0;
		startup_time = delta_time = 0;
	}
	max_lives = readnum(fda1);
	if (aver != AGT10) max_score = readnum(fda1);
	else max_score = 0;
	maxroom = readnum(fda1);
	maxnoun = readnum(fda1);
	maxcreat = readnum(fda1);
	if (aver >= AGTME10) numglobal = readnum(fda1); /* # of global nouns? */
	else numglobal = 0;
	last_cmd = readnum(fda1);
	readjunk(fda1);  /* Number of items being carried */
	readjunk(fda1);  /* Number of items being worn */
	if (isbool(fda1)) return AGT10; /* AGT v1.0 */
	/* From this point on, can assume AGT v1.0 is detected. */
	readptr(fda1, &intro_ptr);

	deduce_sizes(fc, diag);

	if (aver >= AGTME10)  {

		(void)readdict(fda1);  /* ?!?! Not sure what this is */

		report("Reading global and flag nouns", fda1);

		for (i = 0; i < MAX_FLAG_NOUN; i++)
			flag_noun[i] = readdict(fda1); /* Read in flag nouns; may be NONE */
		for (; i < 32; i++)
			readjunk(fda1);

		for (i = 0; i < numglobal; i++)
			globalnoun[i] = readdict(fda1); /* Global nouns */
	} else
		for (i = 0; i < MAX_FLAG_NOUN; i++)
			flag_noun[i] = 0;

	report("Reading questions and junk", fda1);

	if (aver < AGTME15 && aver != AGT10) {
		for (i = 0; i < MaxQuestion; i++) {
			readtext(fda1, question[i]); /* Question[i]== question #(i+1) */
			chop_newline(question[i]);
			readtext(fda1, answer[i]);
			fix_answer(answer[i]);
		}
	} else if (aver >= AGTME15) {
		/* There are 400 lines of description pointers, meaning
		   200 descriptions. I'm guessing they're all questions and
		   answers, which means that there are 100 questions here. */
		for (i = 0; i < MaxQuestion; i++) {
			readptr(fda1, &quest_ptr[i]);
			readptr(fda1, &ans_ptr[i]);
		}
	}

	if (!isbool(fda1)) {  /* Something is wrong... */
		if (aver == AGTMAST)
			return AGTME10;
		else if (aver != AGTCOS && aver != AGT15 && aver != AGT15F) return AGTCOS;
		else return AGT15;
	}
	report("Reading have_meta", fda1);
	have_meta = readrbool(fda1);

	if (have_meta) {
		for (i = 0; i <= last_obj; i++) { /* i.e. iterate over all objects */
			readjunk(fda1);
			readjunk(fda1);
		}
	}

	/* The Master's Edition apparently _always_ sets have_meta,
	   even if there are no metacommands. The only way to determine
	   if there are really metacommands is to check last_cmd */
	if (aver >= AGTME10 && last_cmd == 0) have_meta = 0;

	report("Reading synonyms", fda1);

	for (i = 0; i < TOTAL_VERB; i++)
		synlist[i] = synptr; /* Is this correct? */
	addsyn(-1); /* Put an end-of-list marker in place */

	for (i = 0; i < 56; i++)
		synlist[i] = readslist(fda1); /* May read <none> */

	if (aver >= AGTME10) { /* Unknown verbs */
		synlist[56] = readslist(fda1); /* VIEW */
		synlist[57] = synlist[14];    /* AFTER */
		synlist[14] = readslist(fda1); /* THROW */
	}

	if (aver == AGT183) {
		/* Eliminate LIST_EXITS and add INSTRUCTIONS */
		synlist[58] = synlist[52];
		/* Move 'REMOVE'-- the last thing before INS in 1.83 verblist --
		up to INSTRUCTIONS where it belongs */
		for (i = 52; i > 42; i--) /* i:=Remove to Brief (above List Exits) */
			synlist[i] = synlist[i - 1];
		synlist[41] = synptr;  /* LIST_EXITS, which doesn't exist in 1.83 and so
               can't have synonyms */
		addsyn(-1);
	}

	report("Starting dummy verbs", fda1);
	for (i = 0; i < 25; i++) {
		if (i != 0 || aver < AGTME10)
			synlist[i + BASE_VERB] = readslist(fda1);
		synlist[i + BASE_VERB + 25] = readslist(fda1);
	}
	if (aver >= AGTME10) {
		synlist[BASE_VERB] = readslist(fda1);
		for (i = 0; i < 15; i++) /* Subroutines */
			synlist[i + BASE_VERB + 50] = readslist(fda1);
	}
	report("Reading DESC ptrs", fda1);
	if (aver >= AGT15)
		for (i = 0; i < NUM_ERR; i++)
			readptr(fda1, &err_ptr[i]); /* Read in "standard" error messages. */
	else /* Otherwise need to initialize them to nothing */
		for (i = 0; i < NUM_ERR; i++) {
			err_ptr[i].start = 0;
			err_ptr[i].size = -1;
		}

	report("Reading messages", fda1);
	if (DIAG) rprintf("  MSGS:1..%ld [%ld]\n", last_message, last_message);
	for (i = 0; i < last_message; i++)
		readptr(fda1, &msg_ptr[i]);

	report("Reading room descs", fda1);
	for (i = 0; i <= maxroom - first_room; i++) {
		readptr(fda1, &room_ptr[i]);
		readptr(fda1, &help_ptr[i]);
		readptr(fda1, &special_ptr[i]);
	}

	report("Reading noun descs", fda1);
	for (i = 0; i <= maxnoun - first_noun; i++) {
		readptr(fda1, &noun_ptr[i]);
		readptr(fda1, &push_ptr[i]);
		readptr(fda1, &pull_ptr[i]);
		readptr(fda1, &text_ptr[i]);
		readptr(fda1, &turn_ptr[i]);
		readptr(fda1, &play_ptr[i]);
	}

	report("Reading creatures", fda1);
	if (maxcreat >= first_creat) {
		for (i = 0; i <= maxcreat - first_creat; i++) {
			readptr(fda1, &creat_ptr[i]);
			if (aver != 0 && aver <= AGTCLASS) {
				ask_ptr[i].start = talk_ptr[i].start = 0;
				ask_ptr[i].size = talk_ptr[i].size = -1;
			} else {
				readptr(fda1, &talk_ptr[i]);
				readptr(fda1, &ask_ptr[i]);
				if (aver == 0 && (talk_ptr[i].size == 0 || ask_ptr[i].size == 0 ||
				                  unexpected_eof)) return AGT135;
			}
		}
	}
	if (aver == AGT135 && unexpected_eof) return AGT12;

	if (aver >= AGTME10) {
		if (aver >= AGTME155 && !isnum(fda1)) return AGTME15;

		maxpict = rangefix(readnum(fda1)); /* Number of pictures */
		maxpix = rangefix(readnum(fda1)); /* Numper of PIXs */
		maxsong = rangefix(readnum(fda1)); /* Number of sounds */
		maxfont = rangefix(readnum(fda1)); /* Number of fonts. */

		if (maxpix > MAX_PIX) {
			rprintf("Invalid MAXPIX value?!?\n");
			maxpix = MAX_PIX;
		}

		t_pictlist = (long *)rmalloc(sizeof(long) * maxpict);
		t_pixlist = (long *)rmalloc(sizeof(long) * maxpix);
		t_songlist = (long *)rmalloc(sizeof(long) * maxsong);
		t_fontlist = (long *)rmalloc(sizeof(long) * maxfont);

		for (i = 0; i < maxpict; i++)
			t_pictlist[i] = readfname(fda1); /* picture file names */
		for (i = 0; i < maxpix; i++)
			pix_name[i] = readdict(fda1); /* PIX names */
		for (i = 0; i < maxpix; i++)
			t_pixlist[i] = readfname(fda1); /* PIX filenames */
		for (i = 0; i < maxsong; i++)
			t_songlist[i] = readfname(fda1); /* Sound filenames */
		for (i = 0; i < maxfont; i++)
			t_fontlist[i] = readfname(fda1); /* Font filenames */

		for (i = 0; i < MAX_USTR; i++)
			readtext(fda1, userstr[i]); /* This is just a guess-- should be
                 tested. */
	} else {
		for (i = 0; i < maxpix; i++) pix_name[i] = 0;
		maxpict = maxpix = maxsong = maxfont = 0;
	}
	if ((aver == AGT135 || aver == 0) && isnum(fda1)) return AGT183;
	if (aver == AGT183) {
		long tval;
		tval = readnum(fda1); /* Needs to be translated */
		if (tval >= 1 && tval <= 4)
			statusmode = agt18_statmode[tval - 1];
		else statusmode = 0;
		tval = readnum(fda1);     /* Hours */
		startup_time = readnum(fda1); /* Minutes */
		tval += startup_time / 60;
		startup_time = (startup_time % 60) + 100 * tval;
		if (readrbool(fda1) && startup_time < 1200)
			startup_time += 1200;
		milltime_mode = readrbool(fda1); /* Military time */
		delta_time = readnum(fda1);
	}
	if (DIAG) rprintf("Read in  %d lines\n", linenum);
	return 0;
}



static void set_da1_null(void)
/* Set pointers that are malloc'd by try_read_da1 to NULL, to clear
 the way for free_da1_stuff to recover them */
{
	static_str = NULL;
	ss_end = ss_size = 0;
	command = NULL;
	cmd_ptr = NULL;
	synlist = NULL;
	userstr = NULL;
	sub_name = NULL;
	globalnoun = NULL;
	err_ptr = NULL;
	quest_ptr = ans_ptr = NULL;
	question = answer = NULL;
	msg_ptr = room_ptr = help_ptr = special_ptr = NULL;
	noun_ptr = push_ptr = pull_ptr = text_ptr = turn_ptr = play_ptr = NULL;
	room_inside = noun_inside = creat_inside = NULL;
	creat_ptr = ask_ptr = talk_ptr = NULL;
	pictlist = pixlist = fontlist = songlist = NULL;
	room = NULL;
	noun = NULL;
	creature = NULL;
	command = NULL;
	t_pictlist = t_pixlist = t_fontlist = t_songlist = NULL;
}



static void free_da1_stuff(void)
/* Free all data structures malloc'd by try_read_da1 */
/* (This is neccessary since try_read_da1 may have to restart) */
/* Note that if a pointer is NULL, rfree does nothing */
/* Recall that rfree() is a macro that sets its argument to NULL */
/* after freeing it */
{
	rfree(static_str);
	ss_end = ss_size = 0;
	rfree(userstr);
	rfree(sub_name);
	rfree(globalnoun);
	rfree(err_ptr);
	rfree(synlist);
	rfree(quest_ptr);
	rfree(ans_ptr);
	rfree(question);
	rfree(answer);
	rfree(msg_ptr);
	rfree(room_ptr);
	rfree(help_ptr);
	rfree(special_ptr);
	rfree(noun_ptr);
	rfree(push_ptr);
	rfree(pull_ptr);
	rfree(text_ptr);
	rfree(room_inside);
	rfree(noun_inside);
	rfree(creat_inside);
	rfree(turn_ptr);
	rfree(play_ptr);
	rfree(creat_ptr);
	rfree(ask_ptr);
	rfree(talk_ptr);
	rfree(t_pictlist);
	rfree(t_pixlist);
	rfree(t_songlist);
	rfree(t_fontlist);
	rfree(room);
	rfree(noun);
	rfree(creature);
	rfree(command);
	free_dict();
}

static rbool read_da1(fc_type fc, rbool diag)
/* diag is set by agtout to save extra diagnostic information */
/* It has nothing to do with DIAG */
{
	genfile fda1;
	int i;

	ver = 0;
	aver = 0;
	top_quest = 0; /* Highest question actually referenced; set by fixcmd */
	fda1 = openfile(fc, fDA1, NULL, 0);
	if (!filevalid(fda1, fDA1)) return 0;

	if (DIAG) {
		char *s;
		s = formal_name(fc, fDA1);
		rprintf("Reading info file %s\n", s);
		rfree(s);
	}
	set_da1_null();
	while ((i = try_read_da1(fc, fda1, diag)) != 0) {
		if (aver == i) {
			rprintf("[Recoginiton loop: AVER=%d]\n", aver);
			fatal("AGT version not recognized\n");
		}
		aver = i;
		/* fseek(fda1,0,SEEK_SET);  Go back to beginning... */
		textrewind(fda1);
		if (DIAG)
			rprintf("...Found incompatibility; restarting, w/ AVER=%d\n", aver);
		free_da1_stuff();
		/* set_da1_null();*/
		ver = 0;
	}
	if (aver == 0) aver = AGTSTD; /* i.e. if we didn't notice any differences from
              standard format, it must be a standard file. */
	readclose(fda1);
	return 1; /* Success */
}



/*-------------------------------------------------------------------------*/
/* Miscellaneous routines to tie up loose ends and clean up afterwards.    */
/*-------------------------------------------------------------------------*/

static void finish_read(rbool cleanup)
/* cleanup=0 means it will leave cmd_ptr, 1=it cleans up cmd_ptr */
/*  The only reason to set cleanup==0 is if we are writing a diagnostic
    program of some sort */
{
	int i;

	if (aver >= AGT18 && aver <= AGT18MAX) {
		intro_first = 1;
		max_lives = 1;
		TWO_CYCLE = 1;
		PURE_AFTER = 0;
	} else {
		intro_first = 0;
		TWO_CYCLE = 0;
		PURE_AFTER = 1;
	}

	min_ver = 0;  /* All original AGT games will run with any version of
         AGiliTy. */

	if (aver >= AGTME10)
		PURE_ROOMTITLE = 0;

	if (aver >= AGT15)
		box_title = 1;
	else box_title = 0;

	/* Compute max_score if it isn't already computed */
	if (max_score == 0) {
		for (i = 0; i < maxroom - first_room + 1; i++)
			if (!room[i].unused) max_score += room[i].points;
		for (i = 0; i < maxnoun - first_noun + 1; i++)
			if (!noun[i].unused) max_score += noun[i].points;
		for (i = 0; i < maxcreat - first_creat + 1; i++)
			if (!creature[i].unused) max_score += creature[i].points;
	}

	if (cleanup) rfree(cmd_ptr);
	if (ss_end > 0)
		static_str = (char *)rrealloc(static_str, sizeof(char) * ss_end);

	/* Now convert string handles into honest pointers */
	for (i = 0; i <= maxroom - first_room; i++)
		room[i].name = static_str + room_name[i];
	for (i = 0; i <= maxnoun - first_noun; i++) {
		noun[i].shortdesc = static_str + noun_sdesc[i];
		noun[i].position = static_str + noun_pos[i];
	}
	for (i = 0; i <= maxcreat - first_creat; i++)
		creature[i].shortdesc = static_str + creat_sdesc[i];

	if (aver >= AGTME10) {
		pictlist = (filename *)rmalloc(sizeof(filename) * maxpict);
		pixlist = (filename *)rmalloc(sizeof(filename) * maxpix);
		songlist = (filename *)rmalloc(sizeof(filename) * maxsong);
		fontlist = (filename *)rmalloc(sizeof(filename) * maxfont);

		for (i = 0; i < maxpict; i++)
			pictlist[i] = static_str + t_pictlist[i];
		for (i = 0; i < maxpix; i++)
			pixlist[i] = static_str + t_pixlist[i];
		for (i = 0; i < maxsong; i++)
			songlist[i] = static_str + t_songlist[i];
		for (i = 0; i < maxfont; i++)
			fontlist[i] = static_str + t_fontlist[i];
	}

	/* Free the various temporary arrays */
	rfree(room_name);
	rfree(noun_sdesc);
	rfree(noun_pos);
	rfree(creat_sdesc);
	rfree(t_pictlist);
	rfree(t_pixlist);
	rfree(t_songlist);
	rfree(t_fontlist);

	/* Reallocate questions and asnwers to only use the space that they need */
	if (!RAW_CMD_OUT && top_quest < MaxQuestion) {
		MaxQuestion = top_quest; /* top_quest is computed by fixcmd */
		if (top_quest == 0) {
			rfree(question);
			rfree(answer);
			rfree(quest_ptr);
			rfree(ans_ptr);
		} else {
			if (question != NULL)
				question = (tline *)rrealloc(question, top_quest * sizeof(tline));
			if (answer != NULL)
				answer = (tline *)rrealloc(answer, top_quest * sizeof(tline));
			if (quest_ptr != NULL)
				quest_ptr = (descr_ptr *)rrealloc(quest_ptr, top_quest * sizeof(descr_ptr));
			if (ans_ptr != NULL)
				ans_ptr = (descr_ptr *)rrealloc(ans_ptr, top_quest * sizeof(descr_ptr));
		}
	}
}

void free_all_agtread() {
	int i;

	if (!agx_file)
		for (i = 0; i < last_cmd; i++)
			rfree(command[i].data);
	free_da1_stuff();
	/* userstr, globalnoun, quest_ptr, ans_ptr, question, answer, msg_ptr,
	   room_ptr, help_ptr, special_ptr, noun_ptr, push_ptr, pull_ptr,
	   text_ptr, turn_ptr, play_ptr, creat_ptr, ask_ptr, talk_ptr,
	   room_inside, noun_inside, creat_inside
	   pictlist, pixlist, songlist, fontlist,
	   room, noun, creature, command,
	   dictionary data structures */
}

rbool readagt(fc_type fc, rbool diag)
/* If diag==1, then extra diagnostic information is preserved */
{
	agx_file = 0;
	mem_descr = NULL;
	build_fixchar();
	init_dict();
	if (!read_da1(fc, diag)) return 0; /* Couldn't open DA1 file */
	read_da2(fc);
	read_da3(fc);
	read_da4(fc);
	read_da5(fc);
	read_voc(fc);
	read_opt(fc);
	finish_read(!diag);
	return 1;
}

} // End of namespace AGT
} // End of namespace Glk