#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include <stdarg.h>
#include <sys/time.h>
+#include <ctype.h>
+#include <editline/readline.h>
#include "advent.h"
-#include "database.h"
-#include "linenoise/linenoise.h"
-
-/* hack to ignore GCC Unused Result */
-#define IGNORE(r) do{if (r){}}while(0)
-
-#define PERCENT 63 /* partly hide the packed encoding */
-
-const char advent_to_ascii[] = {0, 32, 33, 34, 39, 40, 41, 42, 43, 44, 45, 46, 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, 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, 37, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 35, 36, 38, 47, 58, 59, 60, 61, 62, 63, 64, 91, 92, 93, 94, 95, 96, 123, 124, 125, 126, 0};
-/* Rendered from the now-gone MPINIT() function */
-const char ascii_to_advent[] = {0, 74, 75, 76, 77, 78, 79, 80, 81, 82, 0, 0, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 0, 1, 2, 106, 107, 63, 108, 3, 4, 5, 6, 7, 8, 9, 10, 109, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 110, 111, 112, 113, 114, 115, 116, 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, 117, 118, 119, 120, 121, 122, 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, 123, 124, 125, 126, 83};
-
-/* I/O routines (SPEAK, PSPEAK, RSPEAK, SETPRM, GETIN, YES) */
-
-void SPEAK(vocab_t msg)
-/* Print the message which starts at LINES[N]. Precede it with a blank line
- * unless game.blklin is false. */
-{
- long blank, casemake, i, nxt, neg, nparms, param, prmtyp, state;
-
- if (msg == 0)
- return;
- blank=game.blklin;
- nparms=1;
- do {
- nxt=labs(LINES[msg])-1;
- msg=msg+1;
- LNLENG=0;
- LNPOSN=1;
- state=0;
- for (i = msg; i <= nxt; i++) {
- PUTTXT(LINES[i],&state,2);
- }
- LNPOSN=0;
- ++LNPOSN;
-
- while (LNPOSN <= LNLENG) {
- if (INLINE[LNPOSN] != PERCENT) {
- ++LNPOSN;
- continue;
- }
- prmtyp = INLINE[LNPOSN+1];
- /* A "%"; the next character determine the type of
- * parameter: 1 (!) = suppress message completely, 29 (S) = NULL
- * If PARAM=1, else 'S' (optional plural ending), 33 (W) = word
- * (two 30-bit values) with trailing spaces suppressed, 22 (L) or
- * 31 (U) = word but map to lower/upper case, 13 (C) = word in
- * lower case with first letter capitalised, 30 (T) = text ending
- * with a word of -1, 65-73 (1-9) = number using that many
- * characters, 12 (B) = variable number of blanks. */
- if (prmtyp == 1)
- return;
- if (prmtyp == 29) {
- SHFTXT(LNPOSN+2,-1);
- INLINE[LNPOSN] = 55;
- if (PARMS[nparms] == 1)
- SHFTXT(LNPOSN+1,-1);
- ++nparms;
- continue;
- }
- if (prmtyp == 30) {
- SHFTXT(LNPOSN+2,-2);
- state=0;
- casemake=2;
-
- while (PARMS[nparms] > 0) {
- if (PARMS[nparms+1] < 0)
- casemake=0;
- PUTTXT(PARMS[nparms],&state,casemake);
- nparms=nparms+1;
- }
- ++nparms;
- continue;
- }
- if (prmtyp == 12) {
- prmtyp=PARMS[nparms];
- SHFTXT(LNPOSN+2,prmtyp-2);
- if (prmtyp != 0) {
- for (i=1; i<=prmtyp; i++) {
- INLINE[LNPOSN]=0;
- ++LNPOSN;
- }
- }
- ++nparms;
- continue;
- }
- if (prmtyp == 33 || prmtyp == 22 || prmtyp == 31 || prmtyp == 13) {
- SHFTXT(LNPOSN+2,-2);
- state = 0;
- casemake = -1;
- if (prmtyp == 31)
- casemake=1;
- if (prmtyp == 33)
- casemake=0;
- i = LNPOSN;
- PUTTXT(PARMS[nparms],&state,casemake);
- PUTTXT(PARMS[nparms+1],&state,casemake);
- if (prmtyp == 13 && INLINE[i] >= 37 && INLINE[i] <= 62)
- INLINE[i] -= 26;
- nparms += 2;
- continue;
- }
-
- prmtyp=prmtyp-64;
- if (prmtyp < 1 || prmtyp > 9) {
- ++LNPOSN;
- continue;
- }
- SHFTXT(LNPOSN+2,prmtyp-2);
- LNPOSN += prmtyp;
- param=labs(PARMS[nparms]);
- neg=0;
- if (PARMS[nparms] < 0)
- neg=9;
- for (i=1; i <= prmtyp; i++) {
- --LNPOSN;
- INLINE[LNPOSN]=MOD(param,10)+64;
- if (i != 1 && param == 0) {
- INLINE[LNPOSN]=neg;
- neg=0;
- }
- param=param/10;
- }
- LNPOSN += prmtyp;
- ++nparms;
- continue;
- }
-
- if (blank)
- TYPE0();
- blank=false;
- TYPE();
- msg = nxt + 1;
- } while
- (LINES[msg] >= 0);
-}
-
-void PSPEAK(vocab_t msg,int skip)
-/* Find the skip+1st message from msg and print it. msg should be
- * the index of the inventory message for object. (INVEN+N+1 message
- * is game.prop=N message). */
-{
- long i, m;
-
- m=PTEXT[msg];
- if (skip >= 0) {
- for (i=0; i <=skip; i++) {
- do {
- m=labs(LINES[m]);
- } while
- (LINES[m] >= 0);
- }
+#include "dungeon.h"
+
+char* xstrdup(const char* s)
+{
+ char* ptr = strdup(s);
+ if (ptr == NULL) {
+ // LCOV_EXCL_START
+ // exclude from coverage analysis because we can't simulate an out of memory error in testing
+ fprintf(stderr, "Out of memory!\n");
+ exit(EXIT_FAILURE);
}
- SPEAK(m);
+ return (ptr);
}
-void RSPEAK(vocab_t i)
-/* Print the i-th "random" message (section 6 of database). */
+void* xmalloc(size_t size)
{
- if (i != 0)
- SPEAK(RTEXT[i]);
+ void* ptr = malloc(size);
+ if (ptr == NULL) {
+ // LCOV_EXCL_START
+ // exclude from coverage analysis because we can't simulate an out of memory error in testing
+ fprintf(stderr, "Out of memory!\n");
+ exit(EXIT_FAILURE);
+ // LCOV_EXCL_STOP
+ }
+ return (ptr);
+}
+
+void packed_to_token(long packed, char token[6])
+{
+ // The advent->ascii mapping.
+ const char advent_to_ascii[] = {
+ ' ', '!', '"', '#', '$', '%', '&', '\'',
+ '(', ')', '*', '+', ',', '-', '.', '/',
+ '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', ':', ';', '<', '=', '>', '?',
+ '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
+ 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
+ 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
+ 'X', 'Y', 'Z', '\0', '\0', '\0', '\0', '\0',
+ };
+
+ // Unpack and map back to ASCII.
+ for (int i = 0; i < 5; ++i) {
+ char advent = (packed >> i * 6) & 63;
+ token[i] = advent_to_ascii[(int) advent];
+ }
+
+ // Ensure the last character is \0.
+ token[5] = '\0';
+
+ // Replace trailing whitespace with \0.
+ for (int i = 4; i >= 0; --i) {
+ if (token[i] == ' ' || token[i] == '\t')
+ token[i] = '\0';
+ else
+ break;
+ }
}
-void SETPRM(long first, long p1, long p2)
-/* Stores parameters into the PRMCOM parms array for use by speak. P1 and P2
- * are stored into PARMS(first) and PARMS(first+1). */
-{
- if (first >= MAXPARMS)
- BUG(29);
- else {
- PARMS[first] = p1;
- PARMS[first+1] = p2;
+long token_to_packed(const char token[6])
+{
+ const char ascii_to_advent[] = {
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63,
+
+ 0, 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,
+
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63,
+ };
+
+ size_t t_len = strlen(token);
+ long packed = 0;
+ for (size_t i = 0; i < t_len; ++i) {
+ char mapped = ascii_to_advent[(int) token[i]];
+ packed |= (mapped << (6 * i));
}
+ return (packed);
}
-bool GETIN(FILE *input,
- long *pword1, long *pword1x,
- long *pword2, long *pword2x)
-/* Get a command from the adventurer. Snarf out the first word, pad it with
- * blanks, and return it in WORD1. Chars 6 thru 10 are returned in WORD1X, in
- * case we need to print out the whole word in an error message. Any number of
- * blanks may follow the word. If a second word appears, it is returned in
- * WORD2 (chars 6 thru 10 in WORD2X), else WORD2 is -1. */
+void tokenize(char* raw, long tokens[4])
{
- long junk;
+ // set each token to 0
+ for (int i = 0; i < 4; ++i)
+ tokens[i] = 0;
- for (;;) {
- if (game.blklin)
- TYPE0();
- MAPLIN(input);
- if (feof(input))
- return false;
- *pword1=GETTXT(true,true,true);
- if (game.blklin && *pword1 < 0)
- continue;
- *pword1x=GETTXT(false,true,true);
- do {
- junk=GETTXT(false,true,true);
- } while
- (junk > 0);
- *pword2=GETTXT(true,true,true);
- *pword2x=GETTXT(false,true,true);
- do {
- junk=GETTXT(false,true,true);
- } while
- (junk > 0);
- if (GETTXT(true,true,true) <= 0)
- return true;
- RSPEAK(53);
+ // grab the first two words
+ char* words[2];
+ words[0] = (char*) xmalloc(strlen(raw) + 1);
+ words[1] = (char*) xmalloc(strlen(raw) + 1);
+ int word_count = sscanf(raw, "%s%s", words[0], words[1]);
+
+ // make space for substrings and zero it out
+ char chunk_data[][6] = {
+ {"\0\0\0\0\0"},
+ {"\0\0\0\0\0"},
+ {"\0\0\0\0\0"},
+ {"\0\0\0\0\0"},
+ };
+
+ // break the words into up to 4 5-char substrings
+ sscanf(words[0], "%5s%5s", chunk_data[0], chunk_data[1]);
+ if (word_count == 2)
+ sscanf(words[1], "%5s%5s", chunk_data[2], chunk_data[3]);
+ free(words[0]);
+ free(words[1]);
+
+ // uppercase all the substrings
+ for (int i = 0; i < 4; ++i)
+ for (unsigned int j = 0; j < strlen(chunk_data[i]); ++j)
+ chunk_data[i][j] = (char) toupper(chunk_data[i][j]);
+
+ // pack the substrings
+ for (int i = 0; i < 4; ++i)
+ tokens[i] = token_to_packed(chunk_data[i]);
+}
+
+/* Hide the fact that wods are corrently packed longs */
+
+bool wordeq(token_t a, token_t b)
+{
+ return a == b;
+}
+
+bool wordempty(token_t a)
+{
+ return a == 0;
+}
+
+void wordclear(token_t *v)
+{
+ *v = 0;
+}
+
+/* I/O routines (speak, pspeak, rspeak, get_input, yes) */
+
+void vspeak(const char* msg, va_list ap)
+{
+ // Do nothing if we got a null pointer.
+ if (msg == NULL)
+ return;
+
+ // Do nothing if we got an empty string.
+ if (strlen(msg) == 0)
+ return;
+
+ // Print a newline if the global game.blklin says to.
+ if (game.blklin == true)
+ printf("\n");
+
+ int msglen = strlen(msg);
+
+ // Rendered string
+ ssize_t size = 2000; /* msglen > 50 ? msglen*2 : 100; */
+ char* rendered = xmalloc(size);
+ char* renderp = rendered;
+
+ // Handle format specifiers (including the custom %C, %L, %S) by
+ // adjusting the parameter accordingly, and replacing the
+ // specifier with %s.
+ long previous_arg = 0;
+ for (int i = 0; i < msglen; i++) {
+ if (msg[i] != '%') {
+ *renderp++ = msg[i];
+ size--;
+ } else {
+ long arg = va_arg(ap, long);
+ if (arg == -1)
+ arg = 0;
+ i++;
+ // Integer specifier. In order to accommodate the fact
+ // that PARMS can have both legitimate integers *and*
+ // packed tokens, stringify everything. Future work may
+ // eliminate the need for this.
+ if (msg[i] == 'd') {
+ int ret = snprintf(renderp, size, "%ld", arg);
+ if (ret < size) {
+ renderp += ret;
+ size -= ret;
+ }
+ }
+
+ // Unmodified string specifier.
+ if (msg[i] == 's') {
+ packed_to_token(arg, renderp); /* unpack directly to destination */
+ size_t len = strlen(renderp);
+ renderp += len;
+ size -= len;
+ }
+
+ // Singular/plural specifier.
+ if (msg[i] == 'S') {
+ if (previous_arg > 1) { // look at the *previous* parameter (which by necessity must be numeric)
+ *renderp++ = 's';
+ size--;
+ }
+ }
+
+ /* Version specifier */
+ if (msg[i] == 'V') {
+ strcpy(renderp, VERSION);
+ size_t len = strlen(VERSION);
+ renderp += len;
+ size -= len;
+ }
+
+ // All-lowercase specifier.
+ if (msg[i] == 'L' || msg[i] == 'C') {
+ packed_to_token(arg, renderp); /* unpack directly to destination */
+ int len = strlen(renderp);
+ for (int j = 0; j < len; ++j) {
+ renderp[j] = tolower(renderp[j]);
+ }
+ if (msg[i] == 'C') // First char uppercase, rest lowercase.
+ renderp[0] = toupper(renderp[0]);
+ renderp += len;
+ size -= len;
+ }
+
+ previous_arg = arg;
+ }
}
+ *renderp = 0;
+
+ // Print the message.
+ printf("%s\n", rendered);
+
+ free(rendered);
+}
+
+void speak(const char* msg, ...)
+{
+ va_list ap;
+ va_start(ap, msg);
+ vspeak(msg, ap);
+ va_end(ap);
+}
+
+void pspeak(vocab_t msg, enum speaktype mode, int skip, ...)
+/* Find the skip+1st message from msg and print it. Modes are:
+ * feel = for inventory, what you can touch
+ * look = the long description for the state the object is in
+ * listen = the sound for the state the object is in
+ * study = text on the object. */
+{
+ va_list ap;
+ va_start(ap, skip);
+ switch (mode) {
+ case touch:
+ vspeak(objects[msg].inventory, ap);
+ break;
+ case look:
+ vspeak(objects[msg].descriptions[skip], ap);
+ break;
+ case hear:
+ vspeak(objects[msg].sounds[skip], ap);
+ break;
+ case study:
+ vspeak(objects[msg].texts[skip], ap);
+ break;
+ case change:
+ vspeak(objects[msg].changes[skip], ap);
+ break;
+ }
+ va_end(ap);
}
-long YES(FILE *input, vocab_t x, vocab_t y, vocab_t z)
-/* Print message X, wait for yes/no answer. If yes, print Y and return true;
- * if no, print Z and return false. */
+void rspeak(vocab_t i, ...)
+/* Print the i-th "random" message (section 6 of database). */
{
- token_t reply, junk1, junk2, junk3;
+ va_list ap;
+ va_start(ap, i);
+ vspeak(arbitrary_messages[i], ap);
+ va_end(ap);
+}
- for (;;) {
- RSPEAK(x);
- GETIN(input, &reply, &junk1, &junk2, &junk3);
- if (reply == MAKEWD(250519) || reply == MAKEWD(25)) {
- RSPEAK(y);
- return true;
- }
- if (reply == MAKEWD(1415) || reply == MAKEWD(14)) {
- RSPEAK(z);
- return false;
- }
- RSPEAK(185);
- }
+void echo_input(FILE* destination, const char* input_prompt, const char* input)
+{
+ size_t len = strlen(input_prompt) + strlen(input) + 1;
+ char* prompt_and_input = (char*) xmalloc(len);
+ strcpy(prompt_and_input, input_prompt);
+ strcat(prompt_and_input, input);
+ fprintf(destination, "%s\n", prompt_and_input);
+ free(prompt_and_input);
}
-/* Line-parsing routines (GETTXT, MAKEWD, PUTTXT, SHFTXT, TYPE0) */
+int word_count(char* s)
+{
+ char* copy = xstrdup(s);
+ char delims[] = " \t";
+ int count = 0;
+ char* word;
-long GETTXT(bool skip, bool onewrd, bool upper)
-/* Take characters from an input line and pack them into 30-bit words.
- * Skip says to skip leading blanks. ONEWRD says stop if we come to a
- * blank. UPPER says to map all letters to uppercase. If we reach the
- * end of the line, the word is filled up with blanks (which encode as 0's).
- * If we're already at end of line when TEXT is called, we return -1. */
+ word = strtok(copy, delims);
+ while (word != NULL) {
+ word = strtok(NULL, delims);
+ ++count;
+ }
+ free(copy);
+ return (count);
+}
+
+char* get_input()
{
- long text;
- static long splitting = -1;
+ // Set up the prompt
+ char input_prompt[] = "> ";
+ if (!prompt)
+ input_prompt[0] = '\0';
+
+ // Print a blank line if game.blklin tells us to.
+ if (game.blklin == true)
+ printf("\n");
- if (LNPOSN != splitting)
- splitting = -1;
- text= -1;
+ char* input;
while (true) {
- if (LNPOSN > LNLENG)
- return(text);
- if ((!skip) || INLINE[LNPOSN] != 0)
- break;
- LNPOSN=LNPOSN+1;
+ input = readline(input_prompt);
+
+ if (input == NULL) // Got EOF; return with it.
+ return (input);
+ else if (input[0] == '#') { // Ignore comments.
+ free(input);
+ continue;
+ } else // We have a 'normal' line; leave the loop.
+ break;
}
- text=0;
- for (int I=1; I<=TOKLEN; I++) {
- text=text*64;
- if (LNPOSN > LNLENG || (onewrd && INLINE[LNPOSN] == 0))
- continue;
- char current=INLINE[LNPOSN];
- if (current < PERCENT) {
- splitting = -1;
- if (upper && current >= 37)
- current=current-26;
- text=text+current;
- LNPOSN=LNPOSN+1;
- continue;
- }
- if (splitting != LNPOSN) {
- text=text+PERCENT;
- splitting = LNPOSN;
- continue;
- }
-
- text=text+current-PERCENT;
- splitting = -1;
- LNPOSN=LNPOSN+1;
- }
+ // Strip trailing newlines from the input
+ input[strcspn(input, "\n")] = 0;
- return text;
-}
+ add_history(input);
-token_t MAKEWD(long letters)
-/* Combine TOKLEN (currently 5) uppercase letters (represented by
- * pairs of decimal digits in lettrs) to form a 30-bit value matching
- * the one that GETTXT would return given those characters plus
- * trailing blanks. Caution: lettrs will overflow 31 bits if
- * 5-letter word starts with V-Z. As a kludgey workaround, you can
- * increment a letter by 5 by adding 50 to the next pair of
- * digits. */
-{
- long i = 1, word = 0;
+ if (!isatty(0))
+ echo_input(stdout, input_prompt, input);
- for (long k=letters; k != 0; k=k/100) {
- word=word+i*(MOD(k,50)+10);
- i=i*64;
- if (MOD(k,100) > 50)word=word+i*5;
- }
- i=64L*64L*64L*64L*64L/i;
- word=word*i;
- return word;
-}
-
-void PUTTXT(token_t word, long *state, long casemake)
-/* Unpack the 30-bit value in word to obtain up to TOKLEN (currently
- * 5) integer-encoded chars, and store them in inline starting at
- * LNPOSN. If LNLENG>=LNPOSN, shift existing characters to the right
- * to make room. STATE will be zero when puttxt is called with the
- * first of a sequence of words, but is thereafter unchanged by the
- * caller, so PUTTXT can use it to maintain state across calls.
- * LNPOSN and LNLENG are incremented by the number of chars stored.
- * If CASEMAKE=1, all letters are made uppercase; if -1, lowercase; if 0,
- * as is. any other value for case is the same as 0 but also causes
- * trailing blanks to be included (in anticipation of subsequent
- * additional text). */
-{
- long alph1, alph2, byte, div, i, w;
-
- alph1=13*casemake+24;
- alph2=26*labs(casemake)+alph1;
- if (labs(casemake) > 1)
- alph1=alph2;
- /* alph1&2 define range of wrong-case chars, 11-36 or 37-62 or empty. */
- div=64L*64L*64L*64L;
- w=word;
- for (i=1; i<=TOKLEN; i++)
- {
- if (w <= 0 && *state == 0 && labs(casemake) <= 1)
- return;
- byte=w/div;
- w=(w-byte*div)*64;
- if (!(*state != 0 || byte != PERCENT)) {
- *state=PERCENT;
- continue;
- }
- SHFTXT(LNPOSN,1);
- *state=*state+byte;
- if (*state < alph2 && *state >= alph1)*state=*state-26*casemake;
- INLINE[LNPOSN]=*state;
- LNPOSN=LNPOSN+1;
- *state=0;
- }
+ if (logfp)
+ echo_input(logfp, "", input);
+
+ return (input);
}
-#define PUTTXT(WORD,STATE,CASE) fPUTTXT(WORD,&STATE,CASE)
-void SHFTXT(long from, long delta)
-/* Move INLINE(N) to INLINE(N+DELTA) for N=FROM,LNLENG. Delta can be
- * negative. LNLENG is updated; LNPOSN is not changed. */
+bool silent_yes()
{
- long I, k, j;
+ char* reply;
+ bool outcome;
- if (!(LNLENG < from || delta == 0)) {
- for (I=from; I<=LNLENG; I++) {
- k=I;
- if (delta > 0)
- k=from+LNLENG-I;
- j=k+delta;
- INLINE[j]=INLINE[k];
- }
+ for (;;) {
+ reply = get_input();
+ if (reply == NULL) {
+ // LCOV_EXCL_START
+ // Should be unreachable. Reply should never be NULL
+ free(reply);
+ exit(EXIT_SUCCESS);
+ // LCOV_EXCL_STOP
+ }
+
+ char* firstword = (char*) xmalloc(strlen(reply) + 1);
+ sscanf(reply, "%s", firstword);
+
+ free(reply);
+
+ for (int i = 0; i < (int)strlen(firstword); ++i)
+ firstword[i] = tolower(firstword[i]);
+
+ int yes = strncmp("yes", firstword, sizeof("yes") - 1);
+ int y = strncmp("y", firstword, sizeof("y") - 1);
+ int no = strncmp("no", firstword, sizeof("no") - 1);
+ int n = strncmp("n", firstword, sizeof("n") - 1);
+
+ free(firstword);
+
+ if (yes == 0 || y == 0) {
+ outcome = true;
+ break;
+ } else if (no == 0 || n == 0) {
+ outcome = false;
+ break;
+ } else
+ rspeak(PLEASE_ANSWER);
}
- LNLENG=LNLENG+delta;
+ return (outcome);
}
-void TYPE0(void)
-/* Type a blank line. This procedure is provided as a convenience for callers
- * who otherwise have no use for MAPCOM. */
+
+bool yes(const char* question, const char* yes_response, const char* no_response)
+/* Print message X, wait for yes/no answer. If yes, print Y and return true;
+ * if no, print Z and return false. */
{
- long temp;
+ char* reply;
+ bool outcome;
- temp=LNLENG;
- LNLENG=0;
- TYPE();
- LNLENG=temp;
- return;
+ for (;;) {
+ speak(question);
+
+ reply = get_input();
+ if (reply == NULL) {
+ // LCOV_EXCL_START
+ // Should be unreachable. Reply should never be NULL
+ free(reply);
+ exit(EXIT_SUCCESS);
+ // LCOV_EXCL_STOP
+ }
+
+ char* firstword = (char*) xmalloc(strlen(reply) + 1);
+ sscanf(reply, "%s", firstword);
+
+ free(reply);
+
+ for (int i = 0; i < (int)strlen(firstword); ++i)
+ firstword[i] = tolower(firstword[i]);
+
+ int yes = strncmp("yes", firstword, sizeof("yes") - 1);
+ int y = strncmp("y", firstword, sizeof("y") - 1);
+ int no = strncmp("no", firstword, sizeof("no") - 1);
+ int n = strncmp("n", firstword, sizeof("n") - 1);
+
+ free(firstword);
+
+ if (yes == 0 || y == 0) {
+ speak(yes_response);
+ outcome = true;
+ break;
+ } else if (no == 0 || n == 0) {
+ speak(no_response);
+ outcome = false;
+ break;
+ } else
+ rspeak(PLEASE_ANSWER);
+
+ }
+
+ return (outcome);
}
-/* Suspend/resume I/O routines (SAVWDS, SAVARR, SAVWRD) */
+/* Data structure routines */
-void fSAVWDS(long *W1, long *W2, long *W3, long *W4,
- long *W5, long *W6, long *W7)
-/* Write or read 7 variables. See SAVWRD. */
+int get_motion_vocab_id(const char* word)
+// Return the first motion number that has 'word' as one of its words.
{
- SAVWRD(0,(*W1));
- SAVWRD(0,(*W2));
- SAVWRD(0,(*W3));
- SAVWRD(0,(*W4));
- SAVWRD(0,(*W5));
- SAVWRD(0,(*W6));
- SAVWRD(0,(*W7));
+ for (int i = 0; i < NMOTIONS; ++i) {
+ for (int j = 0; j < motions[i].words.n; ++j) {
+ if (strcasecmp(word, motions[i].words.strs[j]) == 0 && (strlen(word) > 1 || strchr(ignore, word[0]) == NULL || !oldstyle))
+ return (i);
+ }
+ }
+ // If execution reaches here, we didn't find the word.
+ return (WORD_NOT_FOUND);
}
-void fSAVARR(long arr[], long n)
-/* Write or read an array of n words. See SAVWRD. */
+int get_object_vocab_id(const char* word)
+// Return the first object number that has 'word' as one of its words.
{
- long i;
-
- for (i=1; i<=n; i++) {
- SAVWRD(0,arr[i]);
+ for (int i = 0; i < NOBJECTS + 1; ++i) { // FIXME: the + 1 should go when 1-indexing for objects is removed
+ for (int j = 0; j < objects[i].words.n; ++j) {
+ if (strcasecmp(word, objects[i].words.strs[j]) == 0)
+ return (i);
+ }
}
- return;
-}
-
-void fSAVWRD(long op, long *pword)
-/* If OP<0, start writing a file, using word to initialise encryption; save
- * word in the file. If OP>0, start reading a file; read the file to find
- * the value with which to decrypt the rest. In either case, if a file is
- * already open, finish writing/reading it and don't start a new one. If OP=0,
- * read/write a single word. Words are buffered in case that makes for more
- * efficient disk use. We also compute a simple checksum to catch elementary
- * poking within the saved file. When we finish reading/writing the file,
- * we store zero into *PWORD if there's no checksum error, else nonzero. */
-{
- static long buf[250], cksum = 0, h1, hash = 0, n = 0, state = 0;
-
- if (op != 0)
- {
- long ifvar = state;
- switch (ifvar<0 ? -1 : (ifvar>0 ? 1 : 0))
- {
- case -1:
- case 1:
- if (n == 250)SAVEIO(1,state > 0,buf);
- n=MOD(n,250)+1;
- if (state <= 0) {
- n--; buf[n]=cksum; n++;
- SAVEIO(1,false,buf);
- }
- n--; *pword=buf[n]-cksum; n++;
- SAVEIO(-1,state > 0,buf);
- state=0;
- break;
- case 0: /* FIXME: Huh? should be impossible */
- state=op;
- SAVEIO(0,state > 0,buf);
- n=1;
- if (state <= 0) {
- hash=MOD(*pword,1048576L);
- buf[0]=1234L*5678L-hash;
- }
- SAVEIO(1,true,buf);
- hash=MOD(1234L*5678L-buf[0],1048576L);
- cksum=buf[0];
- return;
- }
- }
- if (state == 0)
- return;
- if (n == 250)
- SAVEIO(1,state > 0,buf);
- n=MOD(n,250)+1;
- h1=MOD(hash*1093L+221573L,1048576L);
- hash=MOD(h1*1093L+221573L,1048576L);
- h1=MOD(h1,1234)*765432+MOD(hash,123);
- n--;
- if (state > 0)
- *pword=buf[n]+h1;
- buf[n]=*pword-h1;
- n++;
- cksum=MOD(cksum*13+*pword,1000000000L);
+ // If execution reaches here, we didn't find the word.
+ return (WORD_NOT_FOUND);
}
-/* Data structure routines */
+int get_action_vocab_id(const char* word)
+// Return the first motion number that has 'word' as one of its words.
+{
+ for (int i = 0; i < NACTIONS; ++i) {
+ for (int j = 0; j < actions[i].words.n; ++j) {
+ if (strcasecmp(word, actions[i].words.strs[j]) == 0 && (strlen(word) > 1 || strchr(ignore, word[0]) == NULL || !oldstyle))
+ return (i);
+ }
+ }
+ // If execution reaches here, we didn't find the word.
+ return (WORD_NOT_FOUND);
+}
-long VOCAB(long id, long init)
-/* Look up ID in the vocabulary (ATAB) and return its "definition" (KTAB), or
- * -1 if not found. If INIT is positive, this is an initialisation call setting
- * up a keyword variable, and not finding it constitutes a bug. It also means
- * that only KTAB values which taken over 1000 equal INIT may be considered.
- * (Thus "STEPS", which is a motion verb as well as an object, may be located
- * as an object.) And it also means the KTAB value is taken modulo 1000. */
-{
- long i, lexeme;
-
- for (i=1; i<=TABSIZ; i++) {
- if (KTAB[i] == -1) {
- lexeme= -1;
- if (init < 0)
- return(lexeme);
- BUG(5);
- }
- if (init >= 0 && KTAB[i]/1000 != init)
- continue;
- if (ATAB[i] == id) {
- lexeme=KTAB[i];
- if (init >= 0)
- lexeme=MOD(lexeme,1000);
- return(lexeme);
- }
+int get_special_vocab_id(const char* word)
+// Return the first special number that has 'word' as one of its words.
+{
+ for (int i = 0; i < NSPECIALS; ++i) {
+ for (int j = 0; j < specials[i].words.n; ++j) {
+ if (strcasecmp(word, specials[i].words.strs[j]) == 0)
+ return (i);
+ }
}
- BUG(21);
+ // If execution reaches here, we didn't find the word.
+ return (WORD_NOT_FOUND);
}
-void DSTROY(long object)
-/* Permanently eliminate "object" by moving to a non-existent location. */
+long get_vocab_id(const char* word)
+// Search the vocab categories in order for the supplied word.
{
- MOVE(object,0);
+ long ref_num;
+
+ /* FIXME: Magic numbers related to vocabulary */
+ ref_num = get_motion_vocab_id(word);
+ if (ref_num != WORD_NOT_FOUND)
+ return (ref_num + 0); // FIXME: replace with a proper hash
+
+ ref_num = get_object_vocab_id(word);
+ if (ref_num != WORD_NOT_FOUND)
+ return (ref_num + 1000); // FIXME: replace with a proper hash
+
+ ref_num = get_action_vocab_id(word);
+ if (ref_num != WORD_NOT_FOUND)
+ return (ref_num + 2000); // FIXME: replace with a proper hash
+
+ ref_num = get_special_vocab_id(word);
+ if (ref_num != WORD_NOT_FOUND)
+ return (ref_num + 3000); // FIXME: replace with a proper hash
+
+ // Check for the reservoir magic word.
+ if (strcasecmp(word, game.zzword) == 0)
+ return (PART + 2000); // FIXME: replace with a proper hash
+
+ return (WORD_NOT_FOUND);
}
-void JUGGLE(long object)
+void juggle(long object)
/* Juggle an object by picking it up and putting it down again, the purpose
* being to get the object to the front of the chain of things at its loc. */
{
long i, j;
- i=game.place[object];
- j=game.fixed[object];
- MOVE(object,i);
- MOVE(object+NOBJECTS,j);
+ i = game.place[object];
+ j = game.fixed[object];
+ move(object, i);
+ move(object + NOBJECTS, j);
}
-void MOVE(long object, long where)
+void move(long object, long where)
/* Place any object anywhere by picking it up and dropping it. May
* already be toting, in which case the carry is a no-op. Mustn't
* pick up objects which are not at any loc, since carry wants to
{
long from;
- if (object > NOBJECTS)
- from=game.fixed[object-NOBJECTS];
+ if (object > NOBJECTS)
+ from = game.fixed[object - NOBJECTS];
else
- from=game.place[object];
- if (from > 0 && from <= 300)
- CARRY(object,from);
- DROP(object,where);
+ from = game.place[object];
+ if (from != LOC_NOWHERE && from != CARRIED && !SPECIAL(from))
+ carry(object, from);
+ drop(object, where);
}
-long PUT(long object, long where, long pval)
+long put(long object, long where, long pval)
/* PUT is the same as MOVE, except it returns a value used to set up the
* negated game.prop values for the repository objects. */
{
- MOVE(object,where);
- return (-1)-pval;;
+ move(object, where);
+ return (-1) - pval;;
}
-void CARRY(long object, long where)
+void carry(long object, long where)
/* Start toting an object, removing it from the list of things at its former
* location. Incr holdng unless it was already being toted. If object>NOBJECTS
* (moving "fixed" second loc), don't change game.place or game.holdng. */
long temp;
if (object <= NOBJECTS) {
- if (game.place[object] == -1)
- return;
- game.place[object]= -1;
- game.holdng=game.holdng+1;
+ if (game.place[object] == CARRIED)
+ return;
+ game.place[object] = CARRIED;
+ ++game.holdng;
}
if (game.atloc[where] == object) {
- game.atloc[where]=game.link[object];
- return;
+ game.atloc[where] = game.link[object];
+ return;
}
- temp=game.atloc[where];
+ temp = game.atloc[where];
while (game.link[temp] != object) {
- temp=game.link[temp];
+ temp = game.link[temp];
}
- game.link[temp]=game.link[object];
+ game.link[temp] = game.link[object];
}
-void DROP(long object, long where)
+void drop(long object, long where)
/* Place an object at a given loc, prefixing it onto the game.atloc list. Decr
* game.holdng if the object was being toted. */
{
if (object > NOBJECTS)
- game.fixed[object-NOBJECTS] = where;
- else
- {
- if (game.place[object] == -1)
- --game.holdng;
- game.place[object] = where;
+ game.fixed[object - NOBJECTS] = where;
+ else {
+ if (game.place[object] == CARRIED)
+ --game.holdng;
+ game.place[object] = where;
}
if (where <= 0)
- return;
+ return;
game.link[object] = game.atloc[where];
game.atloc[where] = object;
}
-long ATDWRF(long where)
+long atdwrf(long where)
/* Return the index of first dwarf at the given location, zero if no dwarf is
* there (or if dwarves not active yet), -1 if all dwarves are dead. Ignore
* the pirate (6th dwarf). */
{
- long at, i;
+ long at;
- at =0;
+ at = 0;
if (game.dflag < 2)
- return(at);
+ return (at);
at = -1;
- for (i=1; i<=NDWARVES-1; i++) {
- if (game.dloc[i] == where)
- return i;
- if (game.dloc[i] != 0)
- at=0;
+ for (long i = 1; i <= NDWARVES - 1; i++) {
+ if (game.dloc[i] == where)
+ return i;
+ if (game.dloc[i] != 0)
+ at = 0;
}
- return(at);
+ return (at);
}
-/* Utility routines (SETBIT, TSTBIT, set_seed, get_next_lcg_value,
- * randrange, RNDVOC, BUG) */
+/* Utility routines (setbit, tstbit, set_seed, get_next_lcg_value,
+ * randrange) */
-long SETBIT(long bit)
+long setbit(long bit)
/* Returns 2**bit for use in constructing bit-masks. */
{
- return(1 << bit);
+ return (1L << bit);
}
-bool TSTBIT(long mask, int bit)
+bool tstbit(long mask, int bit)
/* Returns true if the specified bit is set in the mask. */
{
return (mask & (1 << bit)) != 0;
void set_seed(long seedval)
/* Set the LCG seed */
{
- lcgstate.x = (unsigned long) seedval % lcgstate.m;
+ game.lcg_x = (unsigned long) seedval % game.lcg_m;
+
+ // once seed is set, we need to generate the Z`ZZZ word
+ make_zzword(game.zzword);
}
unsigned long get_next_lcg_value(void)
/* Return the LCG's current value, and then iterate it. */
{
- unsigned long old_x = lcgstate.x;
- lcgstate.x = (lcgstate.a * lcgstate.x + lcgstate.c) % lcgstate.m;
+ unsigned long old_x = game.lcg_x;
+ game.lcg_x = (game.lcg_a * game.lcg_x + game.lcg_c) % game.lcg_m;
return old_x;
}
long randrange(long range)
/* Return a random integer from [0, range). */
{
- return range * get_next_lcg_value() / lcgstate.m;
-}
-
-long RNDVOC(long second, long force)
-/* Searches the vocabulary ATAB for a word whose second character is
- * char, and changes that word such that each of the other four
- * characters is a random letter. If force is non-zero, it is used
- * as the new word. Returns the new word. */
-{
- long rnd = force;
-
- if (rnd == 0) {
- for (int i = 1; i <= 5; i++) {
- long j = 11 + randrange(26);
- if (i == 2)
- j = second;
- rnd = rnd * 64 + j;
- }
- }
-
- long div = 64L * 64L * 64L;
- for (int i = 1; i <= TABSIZ; i++) {
- if (MOD(ATAB[i]/div, 64L) == second)
- {
- ATAB[i] = rnd;
- break;
- }
- }
-
- return rnd;
-}
-
-void BUG(long num)
-/* The following conditions are currently considered fatal bugs. Numbers < 20
- * are detected while reading the database; the others occur at "run time".
- * 0 Message line > 70 characters
- * 1 Null line in message
- * 2 Too many words of messages
- * 3 Too many travel options
- * 4 Too many vocabulary words
- * 5 Required vocabulary word not found
- * 6 Too many RTEXT messages
- * 7 Too many hints
- * 8 Location has cond bit being set twice
- * 9 Invalid section number in database
- * 10 Too many locations
- * 11 Too many class or turn messages
- * 20 Special travel (500>L>300) exceeds goto list
- * 21 Ran off end of vocabulary table
- * 22 Vocabulary type (N/1000) not between 0 and 3
- * 23 Intransitive action verb exceeds goto list
- * 24 Transitive action verb exceeds goto list
- * 25 Conditional travel entry with no alternative
- * 26 Location has no travel entries
- * 27 Hint number exceeds goto list
- * 28 Invalid month returned by date function
- * 29 Too many parameters given to SETPRM */
-{
-
- printf("Fatal error %ld. See source code for interpretation.\n", num);
- exit(0);
-}
-
-/* Machine dependent routines (MAPLIN, TYPE, SAVEIO) */
-
-void MAPLIN(FILE *fp)
-{
- long i, val;
-
- /* Read a line of input, from the specified input source,
- * translate the chars to integers in the range 0-126 and store
- * them in the common array "INLINE". Integer values are as follows:
- * 0 = space [ASCII CODE 40 octal, 32 decimal]
- * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
- * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
- * 11-36 = upper-case letters
- * 37-62 = lower-case letters
- * 63 = percent (%) [ASCII 45 octal, 37 decimal]
- * 64-73 = digits, 0 through 9
- * Remaining characters can be translated any way that is convenient;
- * The "TYPE" routine below is used to map them back to characters when
- * necessary. The above mappings are required so that certain special
- * characters are known to fit in 6 bits and/or can be easily spotted.
- * Array elements beyond the end of the line should be filled with 0,
- * and LNLENG should be set to the index of the last character.
- *
- * If the data file uses a character other than space (e.g., tab) to
- * separate numbers, that character should also translate to 0.
- *
- * This procedure may use the map1,map2 arrays to maintain static data for
- * the mapping. MAP2(1) is set to 0 when the program starts
- * and is not changed thereafter unless the routines on this page choose
- * to do so. */
-
- if (!oldstyle && fp == stdin)
- fputs("> ", stdout);
- do {
- IGNORE(fgets(rawbuf,sizeof(rawbuf)-1,fp));
- } while
- (!feof(fp) && rawbuf[0] == '#');
- if (feof(fp)) {
- if (logfp && fp == stdin)
- fclose(logfp);
- } else {
- if (logfp && fp == stdin)
- IGNORE(fputs(rawbuf, logfp));
- else if (!isatty(0))
- IGNORE(fputs(rawbuf, stdout));
- strcpy(INLINE+1, rawbuf);
- LNLENG=0;
- for (i=1; i<=(long)sizeof(INLINE) && INLINE[i]!=0; i++) {
- val=INLINE[i]+1;
- INLINE[i]=ascii_to_advent[val];
- if (INLINE[i] != 0)
- LNLENG=i;
- }
- LNPOSN=1;
- }
+ return range * get_next_lcg_value() / game.lcg_m;
}
-void TYPE(void)
-/* Type the first "LNLENG" characters stored in inline, mapping them
- * from integers to text per the rules described above. INLINE
- * may be changed by this routine. */
+void make_zzword(char zzword[6])
{
- long i;
-
- if (LNLENG == 0) {
- printf("\n");
- return;
- }
-
- for (i=1; i<=LNLENG; i++) {
- INLINE[i]=advent_to_ascii[INLINE[i]+1];
- }
- INLINE[LNLENG+1]=0;
- printf("%s\n", INLINE+1);
- return;
-}
-
-void fSAVEIO(long op, long in, long arr[])
-/* If OP=0, ask for a file name and open a file. (If IN=true, the file is for
- * input, else output.) If OP>0, read/write ARR from/into the previously-opened
- * file. (ARR is a 250-integer array.) If OP<0, finish reading/writing the
- * file. (Finishing writing can be a no-op if a "stop" statement does it
- * automatically. Finishing reading can be a no-op as long as a subsequent
- * SAVEIO(0,false,X) will still work.) */
-{
- static FILE *fp = NULL;
- char* name;
-
- switch (op < 0 ? -1 : (op > 0 ? 1 : 0))
- {
- case -1:
- fclose(fp);
- break;
- case 0:
- while (fp == NULL) {
- name = linenoise("File name: ");
- fp = fopen(name,(in ? READ_MODE : WRITE_MODE));
- if (fp == NULL)
- printf("Can't open file %s, try again.\n", name);
- }
- linenoiseFree(name);
- break;
- case 1:
- if (in)
- IGNORE(fread(arr,sizeof(long),250,fp));
- else
- IGNORE(fwrite(arr,sizeof(long),250,fp));
- break;
+ for (int i = 0; i < 5; ++i) {
+ zzword[i] = 'A' + randrange(26);
}
+ zzword[1] = '\''; // force second char to apostrophe
+ zzword[5] = '\0';
}
-void DATIME(long* d, long* t)
+void datime(long* d, long* t)
{
struct timeval tv;
gettimeofday(&tv, NULL);
*t = (long) tv.tv_usec;
}
-long MOD(long n, long m)
+// LCOV_EXCL_START
+void bug(enum bugtype num, const char *error_string)
{
- return(n%m);
+ fprintf(stderr, "Fatal error %d, %s.\n", num, error_string);
+ exit(EXIT_FAILURE);
}
+// LCOV_EXCL_STOP
+
+/* end */
projects / open-adventure.git / blobdiff