mirror of
https://github.com/OpenTTD/OpenTTD
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80 lines
3.3 KiB
C++
80 lines
3.3 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD 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, version 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file newgrf_act13.cpp NewGRF Action 0x13 handler. */
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#include "../stdafx.h"
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#include "../debug.h"
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#include "../newgrf_text.h"
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#include "../strings_func.h"
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#include "newgrf_bytereader.h"
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#include "newgrf_internal.h"
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#include "table/strings.h"
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#include "../safeguards.h"
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/** Action 0x13 */
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static void TranslateGRFStrings(ByteReader &buf)
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{
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/* <13> <grfid> <num-ent> <offset> <text...>
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*
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* 4*B grfid The GRFID of the file whose texts are to be translated
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* B num-ent Number of strings
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* W offset First text ID
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* S text... Zero-terminated strings */
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uint32_t grfid = buf.ReadDWord();
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const GRFConfig *c = GetGRFConfig(grfid);
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if (c == nullptr || (c->status != GCS_INITIALISED && c->status != GCS_ACTIVATED)) {
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GrfMsg(7, "TranslateGRFStrings: GRFID 0x{:08X} unknown, skipping action 13", std::byteswap(grfid));
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return;
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}
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if (c->status == GCS_INITIALISED) {
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/* If the file is not active but will be activated later, give an error
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* and disable this file. */
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GRFError *error = DisableGrf(STR_NEWGRF_ERROR_LOAD_AFTER);
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error->data = GetString(STR_NEWGRF_ERROR_AFTER_TRANSLATED_FILE);
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return;
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}
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/* Since no language id is supplied for with version 7 and lower NewGRFs, this string has
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* to be added as a generic string, thus the language id of 0x7F. For this to work
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* new_scheme has to be true as well, which will also be implicitly the case for version 8
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* and higher. A language id of 0x7F will be overridden by a non-generic id, so this will
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* not change anything if a string has been provided specifically for this language. */
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uint8_t language = _cur_gps.grffile->grf_version >= 8 ? buf.ReadByte() : 0x7F;
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uint8_t num_strings = buf.ReadByte();
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uint16_t first_id = buf.ReadWord();
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if (!((first_id >= 0xD000 && first_id + num_strings <= 0xD400) || (first_id >= 0xD800 && first_id + num_strings <= 0xE000))) {
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GrfMsg(7, "TranslateGRFStrings: Attempting to set out-of-range string IDs in action 13 (first: 0x{:04X}, number: 0x{:02X})", first_id, num_strings);
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return;
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}
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for (uint i = 0; i < num_strings && buf.HasData(); i++) {
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std::string_view string = buf.ReadString();
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if (string.empty()) {
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GrfMsg(7, "TranslateGRFString: Ignoring empty string.");
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continue;
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}
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AddGRFString(grfid, GRFStringID(first_id + i), language, true, true, string, STR_UNDEFINED);
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}
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}
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template <> void GrfActionHandler<0x13>::FileScan(ByteReader &) { }
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template <> void GrfActionHandler<0x13>::SafetyScan(ByteReader &) { }
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template <> void GrfActionHandler<0x13>::LabelScan(ByteReader &) { }
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template <> void GrfActionHandler<0x13>::Init(ByteReader &) { }
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template <> void GrfActionHandler<0x13>::Reserve(ByteReader &) { }
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template <> void GrfActionHandler<0x13>::Activation(ByteReader &buf) { TranslateGRFStrings(buf); }
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