443 lines
13 KiB
C
443 lines
13 KiB
C
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/* ************************************************************************
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* File: modify.c Part of CircleMUD *
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* Usage: Run-time modification of game variables *
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* *
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* All rights reserved. See license.doc for complete information. *
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* *
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* Copyright (C) 1993, 94 by the Trustees of the Johns Hopkins University *
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* CircleMUD is based on DikuMUD, Copyright (C) 1990, 1991. *
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************************************************************************ */
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#include "conf.h"
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#include "sysdep.h"
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#include "structs.h"
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#include "utils.h"
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#include "interpreter.h"
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#include "handler.h"
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#include "db.h"
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#include "comm.h"
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#include "spells.h"
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#include "mail.h"
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#include "boards.h"
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void show_string(struct descriptor_data *d, char *input);
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extern struct spell_info_type spell_info[];
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extern const char *MENU;
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extern const char *unused_spellname; /* spell_parser.c */
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/* local functions */
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void smash_tilde(char *str);
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ACMD(do_skillset);
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char *next_page(char *str);
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int count_pages(char *str);
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void paginate_string(char *str, struct descriptor_data *d);
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const char *string_fields[] =
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{
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"name",
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"short",
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"long",
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"description",
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"title",
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"delete-description",
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"\n"
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};
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/* maximum length for text field x+1 */
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int length[] =
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{
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15,
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60,
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256,
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240,
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60
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};
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/* ************************************************************************
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* modification of malloc'ed strings *
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************************************************************************ */
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/*
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* Put '#if 1' here to erase ~, or roll your own method. A common idea
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* is smash/show tilde to convert the tilde to another innocuous character
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* to save and then back to display it. Whatever you do, at least keep the
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* function around because other MUD packages use it, like mudFTP.
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* -gg 9/9/98
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*/
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void smash_tilde(char *str)
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{
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#if 0
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/*
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* Erase any ~'s inserted by people in the editor. This prevents anyone
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* using online creation from causing parse errors in the world files.
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* Derived from an idea by Sammy <samedi@dhc.net> (who happens to like
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* his tildes thank you very much.), -gg 2/20/98
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*/
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while ((str = strchr(str, '~')) != NULL)
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*str = ' ';
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#endif
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}
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/*
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* Basic API function to start writing somewhere.
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*
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* 'data' isn't used in stock CircleMUD but you can use it to pass whatever
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* else you may want through it. The improved editor patch when updated
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* could use it to pass the old text buffer, for instance.
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*/
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void string_write(struct descriptor_data *d, char **writeto, size_t len, long mailto, void *data)
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{
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if (d->character && !IS_NPC(d->character))
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SET_BIT(PLR_FLAGS(d->character), PLR_WRITING);
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if (data)
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mudlog(BRF, LVL_IMMORT, TRUE, "SYSERR: string_write: I don't understand special data.");
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d->str = writeto;
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d->max_str = len;
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d->mail_to = mailto;
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}
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/* Add user input to the 'current' string (as defined by d->str) */
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void string_add(struct descriptor_data *d, char *str)
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{
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int terminator;
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/* determine if this is the terminal string, and truncate if so */
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/* changed to only accept '@' at the beginning of line - J. Elson 1/17/94 */
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delete_doubledollar(str);
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if ((terminator = (*str == '@')))
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*str = '\0';
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smash_tilde(str);
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if (!(*d->str)) {
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if (strlen(str) + 3 > d->max_str) { /* \r\n\0 */
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send_to_char(d->character, "String too long - Truncated.\r\n");
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strcpy(&str[d->max_str - 3], "\r\n"); /* strcpy: OK (size checked) */
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CREATE(*d->str, char, d->max_str);
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strcpy(*d->str, str); /* strcpy: OK (size checked) */
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terminator = 1;
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} else {
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CREATE(*d->str, char, strlen(str) + 3);
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strcpy(*d->str, str); /* strcpy: OK (size checked) */
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}
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} else {
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if (strlen(str) + strlen(*d->str) + 3 > d->max_str) { /* \r\n\0 */
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send_to_char(d->character, "String too long. Last line skipped.\r\n");
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terminator = 1;
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} else {
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RECREATE(*d->str, char, strlen(*d->str) + strlen(str) + 3); /* \r\n\0 */
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strcat(*d->str, str); /* strcat: OK (size precalculated) */
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}
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}
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if (terminator) {
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if (STATE(d) == CON_PLAYING && (PLR_FLAGGED(d->character, PLR_MAILING))) {
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store_mail(d->mail_to, GET_IDNUM(d->character), *d->str);
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d->mail_to = 0;
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free(*d->str);
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free(d->str);
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write_to_output(d, "Message sent!\r\n");
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if (!IS_NPC(d->character))
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REMOVE_BIT(PLR_FLAGS(d->character), PLR_MAILING | PLR_WRITING);
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}
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d->str = NULL;
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if (d->mail_to >= BOARD_MAGIC) {
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Board_save_board(d->mail_to - BOARD_MAGIC);
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d->mail_to = 0;
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}
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if (STATE(d) == CON_EXDESC) {
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write_to_output(d, "%s", MENU);
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STATE(d) = CON_MENU;
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}
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if (STATE(d) == CON_PLAYING && d->character && !IS_NPC(d->character))
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REMOVE_BIT(PLR_FLAGS(d->character), PLR_WRITING);
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} else
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strcat(*d->str, "\r\n"); /* strcat: OK (size checked) */
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}
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/* **********************************************************************
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* Modification of character skills *
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********************************************************************** */
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ACMD(do_skillset)
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{
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struct char_data *vict;
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char name[MAX_INPUT_LENGTH];
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char buf[MAX_INPUT_LENGTH], help[MAX_STRING_LENGTH];
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int skill, value, i, qend;
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argument = one_argument(argument, name);
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if (!*name) { /* no arguments. print an informative text */
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send_to_char(ch, "Syntax: skillset <name> '<skill>' <value>\r\n"
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"Skill being one of the following:\r\n");
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for (qend = 0, i = 0; i <= TOP_SPELL_DEFINE; i++) {
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if (spell_info[i].name == unused_spellname) /* This is valid. */
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continue;
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send_to_char(ch, "%18s", spell_info[i].name);
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if (qend++ % 4 == 3)
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send_to_char(ch, "\r\n");
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}
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if (qend % 4 != 0)
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send_to_char(ch, "\r\n");
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return;
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}
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if (!(vict = get_char_vis(ch, name, NULL, FIND_CHAR_WORLD))) {
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send_to_char(ch, "%s", NOPERSON);
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return;
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}
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skip_spaces(&argument);
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/* If there is no chars in argument */
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if (!*argument) {
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send_to_char(ch, "Skill name expected.\r\n");
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return;
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}
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if (*argument != '\'') {
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send_to_char(ch, "Skill must be enclosed in: ''\r\n");
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return;
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}
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/* Locate the last quote and lowercase the magic words (if any) */
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for (qend = 1; argument[qend] && argument[qend] != '\''; qend++)
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argument[qend] = LOWER(argument[qend]);
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if (argument[qend] != '\'') {
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send_to_char(ch, "Skill must be enclosed in: ''\r\n");
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return;
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}
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strcpy(help, (argument + 1)); /* strcpy: OK (MAX_INPUT_LENGTH <= MAX_STRING_LENGTH) */
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help[qend - 1] = '\0';
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if ((skill = find_skill_num(help)) <= 0) {
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send_to_char(ch, "Unrecognized skill.\r\n");
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return;
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}
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argument += qend + 1; /* skip to next parameter */
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argument = one_argument(argument, buf);
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if (!*buf) {
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send_to_char(ch, "Learned value expected.\r\n");
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return;
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}
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value = atoi(buf);
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if (value < 0) {
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send_to_char(ch, "Minimum value for learned is 0.\r\n");
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return;
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}
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if (value > 100) {
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send_to_char(ch, "Max value for learned is 100.\r\n");
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return;
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}
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if (IS_NPC(vict)) {
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send_to_char(ch, "You can't set NPC skills.\r\n");
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return;
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}
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/*
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* find_skill_num() guarantees a valid spell_info[] index, or -1, and we
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* checked for the -1 above so we are safe here.
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*/
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SET_SKILL(vict, skill, value);
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mudlog(BRF, LVL_IMMORT, TRUE, "%s changed %s's %s to %d.", GET_NAME(ch), GET_NAME(vict), spell_info[skill].name, value);
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send_to_char(ch, "You change %s's %s to %d.\r\n", GET_NAME(vict), spell_info[skill].name, value);
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}
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/*********************************************************************
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* New Pagination Code
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* Michael Buselli submitted the following code for an enhanced pager
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* for CircleMUD. All functions below are his. --JE 8 Mar 96
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*
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*********************************************************************/
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/* Traverse down the string until the begining of the next page has been
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* reached. Return NULL if this is the last page of the string.
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*/
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char *next_page(char *str)
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{
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int col = 1, line = 1, spec_code = FALSE;
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for (;; str++) {
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/* If end of string, return NULL. */
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if (*str == '\0')
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return (NULL);
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/* If we're at the start of the next page, return this fact. */
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else if (line > PAGE_LENGTH)
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return (str);
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/* Check for the begining of an ANSI color code block. */
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else if (*str == '\x1B' && !spec_code)
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spec_code = TRUE;
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/* Check for the end of an ANSI color code block. */
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else if (*str == 'm' && spec_code)
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spec_code = FALSE;
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/* Check for everything else. */
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else if (!spec_code) {
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/* Carriage return puts us in column one. */
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if (*str == '\r')
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col = 1;
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/* Newline puts us on the next line. */
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else if (*str == '\n')
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line++;
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/* We need to check here and see if we are over the page width,
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* and if so, compensate by going to the begining of the next line.
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*/
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else if (col++ > PAGE_WIDTH) {
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col = 1;
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line++;
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}
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}
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}
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}
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/* Function that returns the number of pages in the string. */
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int count_pages(char *str)
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{
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int pages;
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for (pages = 1; (str = next_page(str)); pages++);
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return (pages);
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}
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/* This function assigns all the pointers for showstr_vector for the
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* page_string function, after showstr_vector has been allocated and
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* showstr_count set.
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*/
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void paginate_string(char *str, struct descriptor_data *d)
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{
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int i;
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if (d->showstr_count)
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*(d->showstr_vector) = str;
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for (i = 1; i < d->showstr_count && str; i++)
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str = d->showstr_vector[i] = next_page(str);
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d->showstr_page = 0;
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}
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/* The call that gets the paging ball rolling... */
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void page_string(struct descriptor_data *d, char *str, int keep_internal)
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{
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char actbuf[MAX_INPUT_LENGTH] = "";
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if (!d)
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return;
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if (!str || !*str)
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return;
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d->showstr_count = count_pages(str);
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CREATE(d->showstr_vector, char *, d->showstr_count);
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if (keep_internal) {
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d->showstr_head = strdup(str);
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paginate_string(d->showstr_head, d);
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} else
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paginate_string(str, d);
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show_string(d, actbuf);
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}
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/* The call that displays the next page. */
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void show_string(struct descriptor_data *d, char *input)
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{
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char buffer[MAX_STRING_LENGTH], buf[MAX_INPUT_LENGTH];
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int diff;
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any_one_arg(input, buf);
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/* Q is for quit. :) */
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if (LOWER(*buf) == 'q') {
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free(d->showstr_vector);
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d->showstr_vector = NULL;
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d->showstr_count = 0;
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if (d->showstr_head) {
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free(d->showstr_head);
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d->showstr_head = NULL;
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}
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return;
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}
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/* R is for refresh, so back up one page internally so we can display
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* it again.
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*/
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else if (LOWER(*buf) == 'r')
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d->showstr_page = MAX(0, d->showstr_page - 1);
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/* B is for back, so back up two pages internally so we can display the
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* correct page here.
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*/
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else if (LOWER(*buf) == 'b')
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d->showstr_page = MAX(0, d->showstr_page - 2);
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/* Feature to 'goto' a page. Just type the number of the page and you
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* are there!
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*/
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else if (isdigit(*buf))
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d->showstr_page = MAX(0, MIN(atoi(buf) - 1, d->showstr_count - 1));
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else if (*buf) {
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send_to_char(d->character, "Valid commands while paging are RETURN, Q, R, B, or a numeric value.\r\n");
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return;
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}
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/* If we're displaying the last page, just send it to the character, and
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* then free up the space we used.
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*/
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if (d->showstr_page + 1 >= d->showstr_count) {
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send_to_char(d->character, "%s", d->showstr_vector[d->showstr_page]);
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free(d->showstr_vector);
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d->showstr_vector = NULL;
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d->showstr_count = 0;
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if (d->showstr_head) {
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free(d->showstr_head);
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d->showstr_head = NULL;
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}
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}
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/* Or if we have more to show.... */
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else {
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diff = d->showstr_vector[d->showstr_page + 1] - d->showstr_vector[d->showstr_page];
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if (diff > MAX_STRING_LENGTH - 3) /* 3=\r\n\0 */
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diff = MAX_STRING_LENGTH - 3;
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strncpy(buffer, d->showstr_vector[d->showstr_page], diff); /* strncpy: OK (size truncated above) */
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/*
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* Fix for prompt overwriting last line in compact mode submitted by
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* Peter Ajamian <peter@pajamian.dhs.org> on 04/21/2001
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*/
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if (buffer[diff - 2] == '\r' && buffer[diff - 1]=='\n')
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buffer[diff] = '\0';
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else if (buffer[diff - 2] == '\n' && buffer[diff - 1] == '\r')
|
||
|
/* This is backwards. Fix it. */
|
||
|
strcpy(buffer + diff - 2, "\r\n"); /* strcpy: OK (size checked) */
|
||
|
else if (buffer[diff - 1] == '\r' || buffer[diff - 1] == '\n')
|
||
|
/* Just one of \r\n. Overwrite it. */
|
||
|
strcpy(buffer + diff - 1, "\r\n"); /* strcpy: OK (size checked) */
|
||
|
else
|
||
|
/* Tack \r\n onto the end to fix bug with prompt overwriting last line. */
|
||
|
strcpy(buffer + diff, "\r\n"); /* strcpy: OK (size checked) */
|
||
|
send_to_char(d->character, "%s", buffer);
|
||
|
d->showstr_page++;
|
||
|
}
|
||
|
}
|