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Location: cpp/openttd-patchpack/source/src/newgrf_townname.cpp - annotation
r27835:eabfaa878ced
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Add: calendar date for Survey results
This means no heuristics is possible on around which date people
play the game.
This means no heuristics is possible on around which date people
play the game.
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* 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_townname.cpp
* Implementation of Action 0F "universal holder" structure and functions.
* This file implements a linked-lists of townname generators,
* holding everything that the newgrf action 0F will send over to OpenTTD.
*/
#include "stdafx.h"
#include "newgrf_townname.h"
#include "core/alloc_func.hpp"
#include "string_func.h"
#include "strings_internal.h"
#include "table/strings.h"
#include "safeguards.h"
static std::vector<GRFTownName> _grf_townnames;
static std::vector<StringID> _grf_townname_names;
GRFTownName *GetGRFTownName(uint32_t grfid)
{
auto found = std::find_if(std::begin(_grf_townnames), std::end(_grf_townnames), [&grfid](const GRFTownName &t){ return t.grfid == grfid; });
if (found != std::end(_grf_townnames)) return &*found;
return nullptr;
}
GRFTownName *AddGRFTownName(uint32_t grfid)
{
GRFTownName *t = GetGRFTownName(grfid);
if (t == nullptr) {
t = &_grf_townnames.emplace_back();
t->grfid = grfid;
}
return t;
}
void DelGRFTownName(uint32_t grfid)
{
_grf_townnames.erase(std::find_if(std::begin(_grf_townnames), std::end(_grf_townnames), [&grfid](const GRFTownName &t){ return t.grfid == grfid; }));
}
static void RandomPart(StringBuilder &builder, const GRFTownName *t, uint32_t seed, byte id)
{
assert(t != nullptr);
for (const auto &partlist : t->partlists[id]) {
byte count = partlist.bitcount;
uint16_t maxprob = partlist.maxprob;
uint32_t r = (GB(seed, partlist.bitstart, count) * maxprob) >> count;
for (const auto &part : partlist.parts) {
maxprob -= GB(part.prob, 0, 7);
if (maxprob > r) continue;
if (HasBit(part.prob, 7)) {
RandomPart(builder, t, seed, part.id);
} else {
builder += part.text;
}
break;
}
}
}
void GRFTownNameGenerate(StringBuilder &builder, uint32_t grfid, uint16_t gen, uint32_t seed)
{
const GRFTownName *t = GetGRFTownName(grfid);
if (t != nullptr) {
assert(gen < t->styles.size());
RandomPart(builder, t, seed, t->styles[gen].id);
}
}
/** Allocate memory for the NewGRF town names. */
void InitGRFTownGeneratorNames()
{
_grf_townname_names.clear();
for (const auto &t : _grf_townnames) {
for (const auto &style : t.styles) {
_grf_townname_names.push_back(style.name);
}
}
}
const std::vector<StringID>& GetGRFTownNameList()
{
return _grf_townname_names;
}
StringID GetGRFTownNameName(uint16_t gen)
{
return gen < _grf_townname_names.size() ? _grf_townname_names[gen] : STR_UNDEFINED;
}
void CleanUpGRFTownNames()
{
_grf_townnames.clear();
}
uint32_t GetGRFTownNameId(uint16_t gen)
{
for (const auto &t : _grf_townnames) {
if (gen < t.styles.size()) return t.grfid;
gen -= static_cast<uint16_t>(t.styles.size());
}
/* Fallback to no NewGRF */
return 0;
}
uint16_t GetGRFTownNameType(uint16_t gen)
{
for (const auto &t : _grf_townnames) {
if (gen < t.styles.size()) return gen;
gen -= static_cast<uint16_t>(t.styles.size());
}
/* Fallback to english original */
return SPECSTR_TOWNNAME_ENGLISH;
}
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