X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=dungeon.c;h=a5531473116752dc260e90804c3b1a3067e57ef7;hb=f9edfc51515853c21418c1d55b681a71681a748c;hp=fea3c6d217cda8d48857e75ee6f88e4820190a80;hpb=25077d0b4eb1d6a85140c01092be7203ca64a49c;p=open-adventure.git

diff --git a/dungeon.c b/dungeon.c
index fea3c6d..a553147 100644
--- a/dungeon.c
+++ b/dungeon.c
@@ -1,9 +1,68 @@
 /*
  * The dungeon compiler. Turns adventure.text into a set of C initializers
- * defining (mostly) invariant state.  A couple of slots are messed with
- * at runtime.
+ * defining invariant state.
  */
 
+/*  Current limits:
+ *     12600 words of message text (LINES, LINSIZ).
+ *	885 travel options (TRAVEL, TRVSIZ).
+ *	330 vocabulary words (KTAB, ATAB, TABSIZ).
+ *  There are also limits which cannot be exceeded due to the structure of
+ *  the database.  (E.G., The vocabulary uses n/1000 to determine word type,
+ *  so there can't be more than 1000 words.)  These upper limits are:
+ *	1000 non-synonymous vocabulary words
+ *	300 locations
+ *	100 objects
+ */
+
+/*  Description of the database format
+ *
+ *
+ *  The data file contains several sections.  Each begins with a line containing
+ *  a number identifying the section, and ends with a line containing "-1".
+ *
+ *  Section 3: Travel table.  Each line contains a location number (X), a second
+ *	location number (Y), and a list of motion numbers (see section 4).
+ *	each motion represents a verb which will go to Y if currently at X.
+ *	Y, in turn, is interpreted as follows.  Let M=Y/1000, N=Y mod 1000.
+ *		If N<=300	it is the location to go to.
+ *		If 300<N<=500	N-300 is used in a computed goto to
+ *					a section of special code.
+ *		If N>500	message N-500 from section 6 is printed,
+ *					and he stays wherever he is.
+ *	Meanwhile, M specifies the conditions on the motion.
+ *		If M=0		it's unconditional.
+ *		If 0<M<100	it is done with M% probability.
+ *		If M=100	unconditional, but forbidden to dwarves.
+ *		If 100<M<=200	he must be carrying object M-100.
+ *		If 200<M<=300	must be carrying or in same room as M-200.
+ *		If 300<M<=400	game.prop(M % 100) must *not* be 0.
+ *		If 400<M<=500	game.prop(M % 100) must *not* be 1.
+ *		If 500<M<=600	game.prop(M % 100) must *not* be 2, etc.
+ *	If the condition (if any) is not met, then the next *different*
+ *	"destination" value is used (unless it fails to meet *its* conditions,
+ *	in which case the next is found, etc.).  Typically, the next dest will
+ *	be for one of the same verbs, so that its only use is as the alternate
+ *	destination for those verbs.  For instance:
+ *		15	110022	29	31	34	35	23	43
+ *		15	14	29
+ *	This says that, from loc 15, any of the verbs 29, 31, etc., will take
+ *	him to 22 if he's carrying object 10, and otherwise will go to 14.
+ *		11	303008	49
+ *		11	9	50
+ *	This says that, from 11, 49 takes him to 8 unless game.prop(3)=0, in which
+ *	case he goes to 9.  Verb 50 takes him to 9 regardless of game.prop(3).
+ *  Section 4: Vocabulary.  Each line contains a number (n), a tab, and a
+ *	five-letter word.  Call M=N/1000.  If M=0, then the word is a motion
+ *	verb for use in travelling (see section 3).  Else, if M=1, the word is
+ *	an object.  Else, if M=2, the word is an action verb (such as "carry"
+ *	or "attack").  Else, if M=3, the word is a special case verb (such as
+ *	"dig") and N % 1000 is an index into section 6.  Objects from 50 to
+ *	(currently, anyway) 79 are considered treasures (for pirate, closeout).
+ *  Section 0: End of database.
+ *
+ * Other sections are obsolete and ignored */
+
 #define LINESIZE 100
 #define CLSMAX 12
 #define LINSIZ 12600
@@ -17,6 +76,7 @@
 #include <stdlib.h>
 #include <stdbool.h>
 #include <unistd.h>
+#include <string.h>
 #include "newdb.h"
 #include "common.h"
 
@@ -25,20 +85,17 @@ static long LNLENG;
 static long LNPOSN;
 static char INLINE[LINESIZE + 1];
 static long OLDLOC;
+static long LINUSE;
 
 // Storage for what comes out of the database
-long LINUSE;
 long TRVS;
 long TRNVLS;
 long TABNDX;
-long KEY[NLOCATIONS + 1];
+long TKEY[NLOCATIONS + 1];
 long LINES[LINSIZ + 1];
 long TRAVEL[TRVSIZ + 1];
 long KTAB[TABSIZ + 1];
 long ATAB[TABSIZ + 1];
-long PLAC[NOBJECTS + 1];
-long FIXD[NOBJECTS + 1];
-long ACTSPK[VRBSIZ + 1];
 
 static long GETTXT(long SKIP, long ONEWRD, long UPPER)
 {
@@ -141,7 +198,7 @@ static long GETNUM(FILE *source)
      *  scanned).  If we're at the end of the line or encounter an illegal
      *  character (not a digit, hyphen, or blank), we return 0. */
 
-    long DIGIT, GETNUM, SIGN;
+    long DIGIT, GETNUM, sign;
 
     if (source != NULL) MAPLIN(source);
     GETNUM = 0;
@@ -152,9 +209,9 @@ static long GETNUM(FILE *source)
     }
 
     if (INLINE[LNPOSN] != 9) {
-        SIGN = 1;
+        sign = 1;
     } else {
-        SIGN = -1;
+        sign = -1;
         LNPOSN = LNPOSN + 1;
     }
     while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0)) {
@@ -167,50 +224,22 @@ static long GETNUM(FILE *source)
         LNPOSN = LNPOSN + 1;
     }
 
-    GETNUM = GETNUM * SIGN;
+    GETNUM = GETNUM * sign;
     LNPOSN = LNPOSN + 1;
     return (GETNUM);
 }
 
-/*  Sections 1, 2, 5, 6, 10, 14.  Read messages and set up pointers. */
-static void read_messages(FILE* database, long sect)
+/*  Sections 1, 2, 5, 6, 10, 14.  Skip these, they're all in YAML now. */
+static void read_messages(FILE* database)
 {
-    long KK = LINUSE;
     while (true) {
-        long loc;
-        LINUSE = KK;
-        loc = GETNUM(database);
-        if (LNLENG >= LNPOSN + 70)
-            BUG(MESSAGE_LINE_GT_70_CHARACTERS);
-        if (loc == -1) return;
-        if (LNLENG < LNPOSN)
-            BUG(NULL_LINE_IN_MESSAGE);
-        do {
-            KK = KK + 1;
-            if (KK >= LINSIZ)
-                BUG(TOO_MANY_WORDS_OF_MESSAGES);
-            LINES[KK] = GETTXT(false, false, false);
-        } while (LINES[KK] != -1);
-        LINES[LINUSE] = KK;
-        if (loc == OLDLOC) continue;
-        OLDLOC = loc;
-        LINES[LINUSE] = -KK;
-        if (sect == 10 || sect == 14) {
-	    /* now parsed from YAML */
-            continue;
-        }
-        if (sect == 5) {
-	    /* Now handled in YAML */	
-            continue;
-        }
-        if (sect == 6) {
-	    /* Now handled in YAML */
-            continue;
-        }
-        if (sect == 1) {
-	    /* Now handled in YAML */
-            continue;
-        }
+	do {
+	    if (NULL == fgets(INLINE + 1, sizeof(INLINE) - 1, database)) {
+		printf("Failed fgets()\n");
+	    }
+	} while (!feof(database) && INLINE[1] == '#');
+	if (strncmp(INLINE + 1, "-1\n", 3) == 0)
+	    break;
     }
 }
 
@@ -225,8 +254,8 @@ static void read_section3_stuff(FILE* database)
     while ((loc = GETNUM(database)) != -1) {
         long newloc = GETNUM(NULL);
         long L;
-        if (KEY[loc] == 0) {
-            KEY[loc] = TRVS;
+        if (TKEY[loc] == 0) {
+            TKEY[loc] = TRVS;
         } else {
             TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
         }
@@ -260,17 +289,16 @@ static void read_initial_locations(FILE* database)
 {
     long OBJ;
     while ((OBJ = GETNUM(database)) != -1) {
-        PLAC[OBJ] = GETNUM(NULL);
-        FIXD[OBJ] = GETNUM(NULL);
+	/* all done from YAML now */
     }
 }
 
-/*  Read default message numbers for action verbs, store in ACTSPK. */
+/*  Read default message numbers for action verbs. */
 static void read_action_verb_message_nr(FILE* database)
 {
     long verb;
     while ((verb = GETNUM(database)) != -1) {
-        ACTSPK[verb] = GETNUM(NULL);
+	/* now declared in YAML */
     }
 }
 
@@ -304,8 +332,6 @@ static void read_sound_text(FILE* database)
 {
     long K;
     while ((K = GETNUM(database)) != -1) {
-        long KK = GETNUM(NULL);
-        long I = GETNUM(NULL);
 	/* this stuff is in YAML now */
     }
 }
@@ -322,7 +348,7 @@ static int read_database(FILE* database)
      *  message for game.prop(N)=0.  Successive prop messages are
      *  found by chasing pointers. */
     for (int I = 1; I <= NLOCATIONS; I++) {
-        KEY[I] = 0;
+        TKEY[I] = 0;
     }
 
     LINUSE = 1;
@@ -338,10 +364,10 @@ static int read_database(FILE* database)
         case 0:
             return (0);
         case 1:
-            read_messages(database, sect);
+            read_messages(database);
             break;
         case 2:
-            read_messages(database, sect);
+            read_messages(database);
             break;
         case 3:
             read_section3_stuff(database);
@@ -350,10 +376,10 @@ static int read_database(FILE* database)
             read_vocabulary(database);
             break;
         case 5:
-            read_messages(database, sect);
+            read_messages(database);
             break;
         case 6:
-            read_messages(database, sect);
+            read_messages(database);
             break;
         case 7:
             read_initial_locations(database);
@@ -365,7 +391,7 @@ static int read_database(FILE* database)
             read_conditions(database);
             break;
         case 10:
-            read_messages(database, sect);
+            read_messages(database);
             break;
         case 11:
             read_hints(database);
@@ -376,7 +402,7 @@ static int read_database(FILE* database)
             read_sound_text(database);
             break;
         case 14:
-            read_messages(database, sect);
+            read_messages(database);
             break;
         default:
             BUG(INVALID_SECTION_NUMBER_IN_DATABASE);
@@ -431,13 +457,10 @@ static void write_file(FILE* header_file)
     fprintf(header_file, "\n");
 
     // content variables
-    write_1d(header_file, KEY, NLOCATIONS + 1, "KEY");
+    write_1d(header_file, TKEY, NLOCATIONS + 1, "TKEY");
     write_1d(header_file, TRAVEL, TRVSIZ + 1, "TRAVEL");
     write_1d(header_file, KTAB, TABSIZ + 1, "KTAB");
     write_1d(header_file, ATAB, TABSIZ + 1, "ATAB");
-    write_1d(header_file, PLAC, NOBJECTS + 1, "PLAC");
-    write_1d(header_file, FIXD, NOBJECTS + 1, "FIXD");
-    write_1d(header_file, ACTSPK, VRBSIZ + 1, "ACTSPK");
 
     fprintf(header_file, "#undef LOCATION\n");
     fprintf(header_file, "#undef INITIALIZE\n");