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OpenTTD-patches/src/sl/engine_sl.cpp

124 lines
3.6 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 engine_sl.cpp Code handling saving and loading of engines */
#include "../stdafx.h"
#include "saveload_internal.h"
#include "../engine_base.h"
#include "../engine_func.h"
#include "../string_func.h"
#include <vector>
#include "../safeguards.h"
static std::vector<Engine*> _temp_engine;
/**
* Allocate an Engine structure, but not using the pools.
* The allocated Engine must be freed using FreeEngine;
* @return Allocated engine.
*/
static Engine* CallocEngine()
{
uint8_t *zero = CallocT<uint8_t>(sizeof(Engine));
Engine *engine = new (zero) Engine();
return engine;
}
/**
* Deallocate an Engine constructed by CallocEngine.
* @param e Engine to free.
*/
static void FreeEngine(Engine *e)
{
if (e != nullptr) {
e->~Engine();
free(e);
}
}
Engine *GetTempDataEngine(EngineID index)
{
if (index < _temp_engine.size()) {
return _temp_engine[index];
} else if (index == _temp_engine.size()) {
_temp_engine.push_back(CallocEngine());
return _temp_engine[index];
} else {
NOT_REACHED();
}
}
/**
* Copy data from temporary engine array into the real engine pool.
*/
void CopyTempEngineData()
{
for (Engine *e : Engine::Iterate()) {
if (e->index >= _temp_engine.size()) break;
const Engine *se = GetTempDataEngine(e->index);
e->intro_date = se->intro_date;
e->age = se->age;
e->reliability = se->reliability;
e->reliability_spd_dec = se->reliability_spd_dec;
e->reliability_start = se->reliability_start;
e->reliability_max = se->reliability_max;
e->reliability_final = se->reliability_final;
e->duration_phase_1 = se->duration_phase_1;
e->duration_phase_2 = se->duration_phase_2;
e->duration_phase_3 = se->duration_phase_3;
e->flags = se->flags;
e->preview_asked = se->preview_asked;
e->preview_company = se->preview_company;
e->preview_wait = se->preview_wait;
e->company_avail = se->company_avail;
e->company_hidden = se->company_hidden;
e->name = se->name;
}
ResetTempEngineData();
}
void ResetTempEngineData()
{
/* Get rid of temporary data */
for (std::vector<Engine*>::iterator it = _temp_engine.begin(); it != _temp_engine.end(); ++it) {
FreeEngine(*it);
}
_temp_engine.clear();
}
static void Load_ENGS()
{
/* Load old separate String ID list into a temporary array. This
* was always 256 entries. */
StringID names[256];
SlArray(names, lengthof(names), SLE_STRINGID);
/* Copy each string into the temporary engine array. */
for (EngineID engine = 0; engine < lengthof(names); engine++) {
Engine *e = GetTempDataEngine(engine);
e->name = CopyFromOldName(names[engine]);
}
}
void AfterLoadEngines()
{
AnalyseEngineCallbacks();
}
static const ChunkHandler engine_chunk_handlers[] = {
MakeUpstreamChunkHandler<'EIDS', GeneralUpstreamChunkLoadInfo>(),
MakeUpstreamChunkHandler<'ENGN', GeneralUpstreamChunkLoadInfo>(),
{ 'ENGS', nullptr, Load_ENGS, nullptr, nullptr, CH_RIFF },
};
extern const ChunkHandlerTable _engine_chunk_handlers(engine_chunk_handlers);