daycare.cpp

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/*
  * Copyright 2020 Twilight
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
*/

 
#include "./daycare.h"
#include "./fragments/pokemonbox.h"
#include "./player/playerbasics.h"
#include "../savefile.h"
#include "../savefiletoolset.h"
#include "../savefileiterator.h"
#include <pse-common/random.h>
 
Daycare::Daycare(SaveFile* saveFile)
{
  load(saveFile);
}
 
Daycare::~Daycare()
{
  // Guard the empty Day Care: `pokemon` is nullptr when no mon is deposited
  // (load() only allocates it when 0x2CF4 > 0; reset() leaves it null). The old
  // unconditional pokemon->deleteLater() dereferenced a null `this` and crashed
  // whenever an empty Daycare was destroyed -- masked in the running app because a
  // SaveFile is only torn down at process exit. reset() already guards the same way.
  if(pokemon != nullptr)
    pokemon->deleteLater();
}
 
void Daycare::load(SaveFile* saveFile)
{
  reset();
 
  if(saveFile == nullptr)
    return;
 
  auto toolset = saveFile->toolset;
 
  // Is the daycare in use, if so extract daycare Pokemon Information
  if (toolset->getByte(0x2CF4) > 0) {
    pokemon = new PokemonBox(saveFile, 0x2D0B, 0x2CF5, 0x2D00, 0);
    pokemonChanged();
  }
}
 
void Daycare::save(SaveFile* saveFile)
{
  auto toolset = saveFile->toolset;
 
  toolset->setByte(0x2CF4, (pokemon != nullptr) ? 1 : 0);
 
  if(pokemon != nullptr)
    pokemon->save(saveFile, 0x2D0B, -1, 0x2CF5, 0x2D00, 0);
}
 
void Daycare::reset()
{
  if(pokemon != nullptr) {
    pokemon->deleteLater();
  }
 
  pokemon = nullptr;
  pokemonChanged();
}
 
void Daycare::randomize(PlayerBasics* basics)
{
  reset();
 
  // Give a 50/50 chance the daycare will be in use
  if(!Random::inst()->flipCoin())
    return;
 
  pokemon = new PokemonBox;
  pokemon->randomize(basics);
 
  pokemonChanged();
}