OpenRCT2/src/localisation/user.c

106 lines
2.7 KiB
C

/*****************************************************************************
* Copyright (c) 2014 Ted John
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* This file is part of OpenRCT2.
*
* OpenRCT2 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 3 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, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#include "../addresses.h"
#include "localisation.h"
#include "../ride/ride.h"
#include "../util/util.h"
utf8 *gUserStrings = (char*)0x0135A8F4;
static bool user_string_exists(const char *text);
/**
*
* rct2: 0x006C4209
*/
void user_string_clear_all()
{
memset(gUserStrings, 0, MAX_USER_STRINGS * USER_STRING_MAX_LENGTH);
}
/**
*
* rct2: 0x006C421D
*/
rct_string_id user_string_allocate(int base, const utf8 *text)
{
int highBits = (base & 0x7F) << 9;
bool allowDuplicates = base & 0x80;
if (!allowDuplicates && user_string_exists(text)) {
RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_CHOSEN_NAME_IN_USE_ALREADY;
return 0;
}
char *userString = gUserStrings;
for (int i = 0; i < MAX_USER_STRINGS; i++, userString += USER_STRING_MAX_LENGTH) {
if (userString[0] != 0)
continue;
safe_strncpy(userString, text, USER_STRING_MAX_LENGTH - 1);
return 0x8000 + (i | highBits);
}
RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_TOO_MANY_NAMES_DEFINED;
return 0;
}
/**
*
* rct2: 0x006C42AC
*/
void user_string_free(rct_string_id id)
{
if (!is_user_string_id(id))
return;
id %= MAX_USER_STRINGS;
gUserStrings[id * USER_STRING_MAX_LENGTH] = 0;
}
static bool user_string_exists(const utf8 *text)
{
char *userString = gUserStrings;
for (int i = 0; i < MAX_USER_STRINGS; i++, userString += USER_STRING_MAX_LENGTH) {
if (userString[0] == 0)
continue;
if (strcmp(userString, text) == 0)
return true;
}
return false;
}
bool is_user_string_id(rct_string_id stringId)
{
return stringId >= 0x8000 && stringId < 0x9000;
}
void reset_user_strings()
{
char *userString = gUserStrings;
for (int i = 0; i < MAX_USER_STRINGS; i++, userString += USER_STRING_MAX_LENGTH) {
userString[0] = 0;
}
ride_reset_all_names();
}