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OpenTTD/src/newgrf/newgrf_actf.cpp
2025-04-11 22:11:28 +02:00

104 lines
4.0 KiB
C++

/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file newgrf_actf.cpp NewGRF Action 0x0F handler. */
#include "../stdafx.h"
#include "../debug.h"
#include "../newgrf_townname.h"
#include "newgrf_bytereader.h"
#include "newgrf_internal.h"
#include "table/strings.h"
#include "../safeguards.h"
/** Action 0x0F - Define Town names */
static void FeatureTownName(ByteReader &buf)
{
/* <0F> <id> <style-name> <num-parts> <parts>
*
* B id ID of this definition in bottom 7 bits (final definition if bit 7 set)
* V style-name Name of the style (only for final definition)
* B num-parts Number of parts in this definition
* V parts The parts */
uint32_t grfid = _cur_gps.grffile->grfid;
GRFTownName *townname = AddGRFTownName(grfid);
uint8_t id = buf.ReadByte();
GrfMsg(6, "FeatureTownName: definition 0x{:02X}", id & 0x7F);
if (HasBit(id, 7)) {
/* Final definition */
ClrBit(id, 7);
bool new_scheme = _cur_gps.grffile->grf_version >= 7;
uint8_t lang = buf.ReadByte();
StringID style = STR_UNDEFINED;
do {
ClrBit(lang, 7);
std::string_view name = buf.ReadString();
std::string lang_name = TranslateTTDPatchCodes(grfid, lang, false, name);
GrfMsg(6, "FeatureTownName: lang 0x{:X} -> '{}'", lang, lang_name);
style = AddGRFString(grfid, GRFStringID{id}, lang, new_scheme, false, name, STR_UNDEFINED);
lang = buf.ReadByte();
} while (lang != 0);
townname->styles.emplace_back(style, id);
}
uint8_t parts = buf.ReadByte();
GrfMsg(6, "FeatureTownName: {} parts", parts);
townname->partlists[id].reserve(parts);
for (uint partnum = 0; partnum < parts; partnum++) {
NamePartList &partlist = townname->partlists[id].emplace_back();
uint8_t texts = buf.ReadByte();
partlist.bitstart = buf.ReadByte();
partlist.bitcount = buf.ReadByte();
partlist.maxprob = 0;
GrfMsg(6, "FeatureTownName: part {} contains {} texts and will use GB(seed, {}, {})", partnum, texts, partlist.bitstart, partlist.bitcount);
partlist.parts.reserve(texts);
for (uint textnum = 0; textnum < texts; textnum++) {
NamePart &part = partlist.parts.emplace_back();
part.prob = buf.ReadByte();
if (HasBit(part.prob, 7)) {
uint8_t ref_id = buf.ReadByte();
if (ref_id >= GRFTownName::MAX_LISTS || townname->partlists[ref_id].empty()) {
GrfMsg(0, "FeatureTownName: definition 0x{:02X} doesn't exist, deactivating", ref_id);
DelGRFTownName(grfid);
DisableGrf(STR_NEWGRF_ERROR_INVALID_ID);
return;
}
part.id = ref_id;
GrfMsg(6, "FeatureTownName: part {}, text {}, uses intermediate definition 0x{:02X} (with probability {})", partnum, textnum, ref_id, part.prob & 0x7F);
} else {
std::string_view text = buf.ReadString();
part.text = TranslateTTDPatchCodes(grfid, 0, false, text);
GrfMsg(6, "FeatureTownName: part {}, text {}, '{}' (with probability {})", partnum, textnum, part.text, part.prob);
}
partlist.maxprob += GB(part.prob, 0, 7);
}
GrfMsg(6, "FeatureTownName: part {}, total probability {}", partnum, partlist.maxprob);
}
}
template <> void GrfActionHandler<0x0F>::FileScan(ByteReader &) { }
template <> void GrfActionHandler<0x0F>::SafetyScan(ByteReader &buf) { GRFUnsafe(buf); }
template <> void GrfActionHandler<0x0F>::LabelScan(ByteReader &) { }
template <> void GrfActionHandler<0x0F>::Init(ByteReader &buf) { FeatureTownName(buf); }
template <> void GrfActionHandler<0x0F>::Reserve(ByteReader &) { }
template <> void GrfActionHandler<0x0F>::Activation(ByteReader &) { }