* (ESR) This replaces a bunch of particularly nasty FORTRAN-derived code;
* see the history.adoc file in the source distribution for discussion.
*
- * SPDX-FileCopyrightText: 1977, 2005 by Will Crowther and Don Woods
- * SPDX-FileCopyrightText: 2017 by Eric S. Raymond
+ * SPDX-FileCopyrightText: (C) 1977, 2005 by Will Crowther and Don Woods
* SPDX-License-Identifier: BSD-2-Clause
*/
+#include <ctype.h>
+#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
-#include <ctype.h>
#include <time.h>
-#include <inttypes.h>
#include "advent.h"
-#include "dungeon.h"
/*
* Use this to detect endianness mismatch. Can't be unchanged by byte-swapping.
*/
-#define ENDIAN_MAGIC 2317
+#define ENDIAN_MAGIC 2317
struct save_t save;
-#define IGNORE(r) do{if (r){}}while(0)
-
-int savefile(FILE *fp)
-/* Save game to file. No input or output from user. */
-{
- memcpy(&save.magic, ADVENT_MAGIC, sizeof(ADVENT_MAGIC));
- if (save.version == 0)
- save.version = SAVE_VERSION;
- if (save.canary == 0)
- save.canary = ENDIAN_MAGIC;
-
- save.game = game;
- IGNORE(fwrite(&save, sizeof(struct save_t), 1, fp));
- return (0);
+#define IGNORE(r) \
+ do { \
+ if (r) { \
+ } \
+ } while (0)
+
+int savefile(FILE *fp) {
+ /* Save game to file. No input or output from user. */
+ memcpy(&save.magic, ADVENT_MAGIC, sizeof(ADVENT_MAGIC));
+ if (save.version == 0) {
+ save.version = SAVE_VERSION;
+ }
+ if (save.canary == 0) {
+ save.canary = ENDIAN_MAGIC;
+ }
+ save.game = game;
+ IGNORE(fwrite(&save, sizeof(struct save_t), 1, fp));
+ return (0);
}
/* Suspend and resume */
-static char *strip(char *name)
-{
- // Trim leading whitespace
- while(isspace((unsigned char)*name))
- name++; // LCOV_EXCL_LINE
- if(*name != '\0') {
- // Trim trailing whitespace;
- // might be left there by autocomplete
- char *end = name + strlen(name) - 1;
- while(end > name && isspace((unsigned char)*end))
- end--;
- // Write new null terminator character
- end[1] = '\0';
- }
-
- return name;
+static char *strip(char *name) {
+ // Trim leading whitespace
+ while (isspace((unsigned char)*name)) {
+ name++; // LCOV_EXCL_LINE
+ }
+ if (*name != '\0') {
+ // Trim trailing whitespace;
+ // might be left there by autocomplete
+ char *end = name + strlen(name) - 1;
+ while (end > name && isspace((unsigned char)*end)) {
+ end--;
+ }
+ // Write new null terminator character
+ end[1] = '\0';
+ }
+
+ return name;
}
-int suspend(void)
-{
- /* Suspend. Offer to save things in a file, but charging
- * some points (so can't win by using saved games to retry
- * battles or to start over after learning zzword).
- * If ADVENT_NOSAVE is defined, gripe instead. */
+int suspend(void) {
+ /* Suspend. Offer to save things in a file, but charging
+ * some points (so can't win by using saved games to retry
+ * battles or to start over after learning zzword).
+ * If ADVENT_NOSAVE is defined, gripe instead. */
#if defined ADVENT_NOSAVE || defined ADVENT_AUTOSAVE
- rspeak(SAVERESUME_DISABLED);
- return GO_TOP;
+ rspeak(SAVERESUME_DISABLED);
+ return GO_TOP;
#endif
- FILE *fp = NULL;
-
- rspeak(SUSPEND_WARNING);
- if (!yes_or_no(arbitrary_messages[THIS_ACCEPTABLE], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
- return GO_CLEAROBJ;
- game.saved = game.saved + 5;
-
- while (fp == NULL) {
- char* name = myreadline("\nFile name: ");
- if (name == NULL)
- return GO_TOP;
- name = strip(name);
- if (strlen(name) == 0)
- return GO_TOP; // LCOV_EXCL_LINE
- fp = fopen(strip(name), WRITE_MODE);
- if (fp == NULL)
- printf("Can't open file %s, try again.\n", name);
- free(name);
- }
-
- savefile(fp);
- fclose(fp);
- rspeak(RESUME_HELP);
- exit(EXIT_SUCCESS);
+ FILE *fp = NULL;
+
+ rspeak(SUSPEND_WARNING);
+ if (!yes_or_no(arbitrary_messages[THIS_ACCEPTABLE],
+ arbitrary_messages[OK_MAN],
+ arbitrary_messages[OK_MAN])) {
+ return GO_CLEAROBJ;
+ }
+ game.saved = game.saved + 5;
+
+ while (fp == NULL) {
+ char *name = myreadline("\nFile name: ");
+ if (name == NULL) {
+ return GO_TOP;
+ }
+ name = strip(name);
+ if (strlen(name) == 0) {
+ return GO_TOP; // LCOV_EXCL_LINE
+ }
+ fp = fopen(strip(name), WRITE_MODE);
+ if (fp == NULL) {
+ printf("Can't open file %s, try again.\n", name);
+ }
+ free(name);
+ }
+
+ savefile(fp);
+ fclose(fp);
+ rspeak(RESUME_HELP);
+ exit(EXIT_SUCCESS);
}
-int resume(void)
-{
- /* Resume. Read a suspended game back from a file.
- * If ADVENT_NOSAVE is defined, gripe instead. */
+int resume(void) {
+ /* Resume. Read a suspended game back from a file.
+ * If ADVENT_NOSAVE is defined, gripe instead. */
#if defined ADVENT_NOSAVE || defined ADVENT_AUTOSAVE
- rspeak(SAVERESUME_DISABLED);
- return GO_TOP;
+ rspeak(SAVERESUME_DISABLED);
+ return GO_TOP;
#endif
- FILE *fp = NULL;
-
- if (game.loc != LOC_START || game.abbrev[LOC_START] != 1) {
- rspeak(RESUME_ABANDON);
- if (!yes_or_no(arbitrary_messages[THIS_ACCEPTABLE], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
- return GO_CLEAROBJ;
- }
-
- while (fp == NULL) {
- char* name = myreadline("\nFile name: ");
- if (name == NULL)
- return GO_TOP;
- name = strip(name);
- if (strlen(name) == 0)
- return GO_TOP; // LCOV_EXCL_LINE
- fp = fopen(name, READ_MODE);
- if (fp == NULL)
- printf("Can't open file %s, try again.\n", name);
- free(name);
- }
-
- return restore(fp);
+ FILE *fp = NULL;
+
+ if (game.loc != LOC_START || game.locs[LOC_START].abbrev != 1) {
+ rspeak(RESUME_ABANDON);
+ if (!yes_or_no(arbitrary_messages[THIS_ACCEPTABLE],
+ arbitrary_messages[OK_MAN],
+ arbitrary_messages[OK_MAN])) {
+ return GO_CLEAROBJ;
+ }
+ }
+
+ while (fp == NULL) {
+ char *name = myreadline("\nFile name: ");
+ if (name == NULL) {
+ return GO_TOP;
+ }
+ name = strip(name);
+ if (strlen(name) == 0) {
+ return GO_TOP; // LCOV_EXCL_LINE
+ }
+ fp = fopen(name, READ_MODE);
+ if (fp == NULL) {
+ printf("Can't open file %s, try again.\n", name);
+ }
+ free(name);
+ }
+
+ return restore(fp);
}
-int restore(FILE* fp)
-{
- /* Read and restore game state from file, assuming
- * sane initial state.
- * If ADVENT_NOSAVE is defined, gripe instead. */
+int restore(FILE *fp) {
+ /* Read and restore game state from file, assuming
+ * sane initial state.
+ * If ADVENT_NOSAVE is defined, gripe instead. */
#ifdef ADVENT_NOSAVE
- rspeak(SAVERESUME_DISABLED)
- return GO_TOP;
+ rspeak(SAVERESUME_DISABLED);
+ return GO_TOP;
#endif
- IGNORE(fread(&save, sizeof(struct save_t), 1, fp));
- fclose(fp);
- if (memcmp(save.magic, ADVENT_MAGIC, sizeof(ADVENT_MAGIC)) != 0 || save.canary != ENDIAN_MAGIC)
- rspeak(BAD_SAVE);
- else if (save.version != SAVE_VERSION) {
- rspeak(VERSION_SKEW, save.version / 10, MOD(save.version, 10), SAVE_VERSION / 10, MOD(SAVE_VERSION, 10));
- } else if (!is_valid(save.game)) {
- rspeak(SAVE_TAMPERING);
- exit(EXIT_SUCCESS);
- } else {
- game = save.game;
- }
- return GO_TOP;
+ IGNORE(fread(&save, sizeof(struct save_t), 1, fp));
+ fclose(fp);
+ if (memcmp(save.magic, ADVENT_MAGIC, sizeof(ADVENT_MAGIC)) != 0 ||
+ save.canary != ENDIAN_MAGIC) {
+ rspeak(BAD_SAVE);
+ } else if (save.version != SAVE_VERSION) {
+ rspeak(VERSION_SKEW, save.version / 10, MOD(save.version, 10),
+ SAVE_VERSION / 10, MOD(SAVE_VERSION, 10));
+ } else if (!is_valid(save.game)) {
+ rspeak(SAVE_TAMPERING);
+ exit(EXIT_SUCCESS);
+ } else {
+ game = save.game;
+ }
+ return GO_TOP;
}
-bool is_valid(struct game_t valgame)
-{
- /* Save files can be roughly grouped into three groups:
- * With valid, reachable state, with valid, but unreachable
- * state and with invalid state. We check that state is
- * valid: no states are outside minimal or maximal value
- */
-
- /* Prevent division by zero */
- if (valgame.abbnum == 0) {
- return false; // LCOV_EXCL_LINE
- }
-
- /* Check for RNG overflow. Truncate */
- if (valgame.lcg_x >= LCG_M) {
- valgame.lcg_x %= LCG_M; // LCOV_EXCL_LINE
- }
-
- /* Check for RNG underflow. Transpose */
- if (valgame.lcg_x < LCG_M) {
- valgame.lcg_x = LCG_M + (valgame.lcg_x % LCG_M);
- }
-
- /* Bounds check for locations */
- if ( valgame.chloc < -1 || valgame.chloc > NLOCATIONS ||
- valgame.chloc2 < -1 || valgame.chloc2 > NLOCATIONS ||
- valgame.loc < 0 || valgame.loc > NLOCATIONS ||
- valgame.newloc < 0 || valgame.newloc > NLOCATIONS ||
- valgame.oldloc < 0 || valgame.oldloc > NLOCATIONS ||
- valgame.oldlc2 < 0 || valgame.oldlc2 > NLOCATIONS) {
- return false; // LCOV_EXCL_LINE
- }
- /* Bounds check for location arrays */
- for (int i = 0; i <= NDWARVES; i++) {
- if (valgame.dloc[i] < -1 || valgame.dloc[i] > NLOCATIONS ||
- valgame.odloc[i] < -1 || valgame.odloc[i] > NLOCATIONS) {
- return false; // LCOV_EXCL_LINE
- }
- }
-
- for (int i = 0; i <= NOBJECTS; i++) {
- if (valgame.place[i] < -1 || valgame.place[i] > NLOCATIONS ||
- valgame.fixed[i] < -1 || valgame.fixed[i] > NLOCATIONS) {
- return false; // LCOV_EXCL_LINE
- }
- }
-
- /* Bounds check for dwarves */
- if (valgame.dtotal < 0 || valgame.dtotal > NDWARVES ||
- valgame.dkill < 0 || valgame.dkill > NDWARVES) {
- return false; // LCOV_EXCL_LINE
- }
-
- /* Validate that we didn't die too many times in save */
- if (valgame.numdie >= NDEATHS) {
- return false; // LCOV_EXCL_LINE
- }
-
- /* Recalculate tally, throw the towel if in disagreement */
- int temp_tally = 0;
- for (int treasure = 1; treasure <= NOBJECTS; treasure++) {
- if (objects[treasure].is_treasure) {
- if (valgame.prop[treasure] == STATE_NOTFOUND) {
- ++temp_tally;
- }
- }
- }
- if (temp_tally != valgame.tally) {
- return false; // LCOV_EXCL_LINE
- }
-
- /* Check that properties of objects aren't beyond expected */
- for (obj_t obj = 0; obj <= NOBJECTS; obj++) {
- /* Magic number -2 allows a STASHED version of state 1 */
- if (valgame.prop[obj] < -2 || valgame.prop[obj] > 1) {
- switch (obj) {
- case RUG:
- case DRAGON:
- case BIRD:
- case BOTTLE:
- case PLANT:
- case PLANT2:
- case TROLL:
- case URN:
- case EGGS:
- case VASE:
- case CHAIN:
- if (valgame.prop[obj] == 2) // There are multiple different states, but it's convenient to clump them together
- continue; // LCOV_EXCL_LINE
- /* FALLTHRU */
- case BEAR:
- if (valgame.prop[BEAR] == CONTENTED_BEAR || valgame.prop[BEAR] == BEAR_DEAD)
- continue;
- /* FALLTHRU */
- default:
- return false; // LCOV_EXCL_LINE
- }
- }
- }
-
- /* Check that values in linked lists for objects in locations are inside bounds */
- for (loc_t loc = LOC_NOWHERE; loc <= NLOCATIONS; loc++) {
- if (valgame.atloc[loc] < NO_OBJECT || valgame.atloc[loc] > NOBJECTS * 2) {
- return false; // LCOV_EXCL_LINE
- }
- }
- for (obj_t obj = 0; obj <= NOBJECTS * 2; obj++ ) {
- if (valgame.link[obj] < NO_OBJECT || valgame.link[obj] > NOBJECTS * 2) {
- return false; // LCOV_EXCL_LINE
- }
- }
-
- return true;
+bool is_valid(struct game_t valgame) {
+ /* Save files can be roughly grouped into three groups:
+ * With valid, reachable state, with valid, but unreachable
+ * state and with invalid state. We check that state is
+ * valid: no states are outside minimal or maximal value
+ */
+
+ /* Prevent division by zero */
+ if (valgame.abbnum == 0) {
+ return false; // LCOV_EXCL_LINE
+ }
+
+ /* Check for RNG overflow. Truncate */
+ if (valgame.lcg_x >= LCG_M) {
+ return false;
+ }
+
+ /* Bounds check for locations */
+ if (valgame.chloc < -1 || valgame.chloc > NLOCATIONS ||
+ valgame.chloc2 < -1 || valgame.chloc2 > NLOCATIONS ||
+ valgame.loc < 0 || valgame.loc > NLOCATIONS || valgame.newloc < 0 ||
+ valgame.newloc > NLOCATIONS || valgame.oldloc < 0 ||
+ valgame.oldloc > NLOCATIONS || valgame.oldlc2 < 0 ||
+ valgame.oldlc2 > NLOCATIONS) {
+ return false; // LCOV_EXCL_LINE
+ }
+ /* Bounds check for location arrays */
+ for (int i = 0; i <= NDWARVES; i++) {
+ if (valgame.dwarves[i].loc < -1 ||
+ valgame.dwarves[i].loc > NLOCATIONS ||
+ valgame.dwarves[i].oldloc < -1 ||
+ valgame.dwarves[i].oldloc > NLOCATIONS) {
+ return false; // LCOV_EXCL_LINE
+ }
+ }
+
+ for (int i = 0; i <= NOBJECTS; i++) {
+ if (valgame.objects[i].place < -1 ||
+ valgame.objects[i].place > NLOCATIONS ||
+ valgame.objects[i].fixed < -1 ||
+ valgame.objects[i].fixed > NLOCATIONS) {
+ return false; // LCOV_EXCL_LINE
+ }
+ }
+
+ /* Bounds check for dwarves */
+ if (valgame.dtotal < 0 || valgame.dtotal > NDWARVES ||
+ valgame.dkill < 0 || valgame.dkill > NDWARVES) {
+ return false; // LCOV_EXCL_LINE
+ }
+
+ /* Validate that we didn't die too many times in save */
+ if (valgame.numdie >= NDEATHS) {
+ return false; // LCOV_EXCL_LINE
+ }
+
+ /* Recalculate tally, throw the towel if in disagreement */
+ int temp_tally = 0;
+ for (int treasure = 1; treasure <= NOBJECTS; treasure++) {
+ if (objects[treasure].is_treasure) {
+ if (PROP_IS_NOTFOUND2(valgame, treasure)) {
+ ++temp_tally;
+ }
+ }
+ }
+ if (temp_tally != valgame.tally) {
+ return false; // LCOV_EXCL_LINE
+ }
+
+ /* Check that properties of objects aren't beyond expected */
+ for (obj_t obj = 0; obj <= NOBJECTS; obj++) {
+ if (PROP_IS_INVALID(valgame.objects[obj].prop)) {
+ return false; // LCOV_EXCL_LINE
+ }
+ }
+
+ /* Check that values in linked lists for objects in locations are inside
+ * bounds */
+ for (loc_t loc = LOC_NOWHERE; loc <= NLOCATIONS; loc++) {
+ if (valgame.locs[loc].atloc < NO_OBJECT ||
+ valgame.locs[loc].atloc > NOBJECTS * 2) {
+ return false; // LCOV_EXCL_LINE
+ }
+ }
+ for (obj_t obj = 0; obj <= NOBJECTS * 2; obj++) {
+ if (valgame.link[obj] < NO_OBJECT ||
+ valgame.link[obj] > NOBJECTS * 2) {
+ return false; // LCOV_EXCL_LINE
+ }
+ }
+
+ return true;
}
/* end */
projects / open-adventure.git / blobdiff