libpokemegb/src/gen2/Gen2PlayerPokemonStorage.cpp
2024-06-11 21:45:59 +02:00

420 lines
13 KiB
C++

#include "gen2/Gen2PlayerPokemonStorage.h"
#include "gen2/Gen2GameReader.h"
#include "SaveManager.h"
#include <cstring>
static const int ORIGINAL_TRAINER_NAME_SIZE = 0xB;
static const int NICKNAME_SIZE = 0xB;
static const uint8_t PARTY_LIST_CAPACITY = 6;
static const uint8_t PARTY_LIST_PKMN_ENTRY_SIZE = 48;
static const uint8_t PC_BOX_LIST_CAPACITY = 20;
static const uint8_t PC_BOX_LIST_PKMN_ENTRY_SIZE = 32;
Gen2PokemonList::Gen2PokemonList(Gen2GameReader& gameReader, ISaveManager& saveManager, uint8_t listCapacity, uint8_t entrySize)
: gameReader_(gameReader)
, saveManager_(saveManager)
, listCapacity_(listCapacity)
, entrySize_(entrySize)
{
}
Gen2PokemonList::~Gen2PokemonList()
{
}
uint8_t Gen2PokemonList::getNumberOfPokemon()
{
uint8_t result;
if(!saveManager_.seek(getSaveOffset()))
{
return 0;
}
saveManager_.readByte(result);
return result;
}
uint8_t Gen2PokemonList::getMaxNumberOfPokemon() const
{
return listCapacity_;
}
bool Gen2PokemonList::setNumberOfPokemon(uint8_t count)
{
if(!saveManager_.seek(getSaveOffset()))
{
return false;
}
saveManager_.writeByte(count);
return true;
}
uint8_t Gen2PokemonList::getSpeciesAtIndex(uint8_t index)
{
if(!saveManager_.seek(getSaveOffset() + 1 + index))
{
return 0;
}
return getNextSpecies();
}
bool Gen2PokemonList::setSpeciesAtIndex(uint8_t index, uint8_t speciesIndex)
{
if(!saveManager_.seek(getSaveOffset() + 1 + index))
{
return false;
}
saveManager_.writeByte(speciesIndex);
return true;
}
uint8_t Gen2PokemonList::getNextSpecies()
{
uint8_t result;
saveManager_.readByte(result);
return result;
}
bool Gen2PokemonList::getPokemon(uint8_t index, Gen2TrainerPokemon& outPoke)
{
if(!saveManager_.seek(getSaveOffset() + listCapacity_ + 2 + (index * entrySize_)))
{
return false;
}
return getNextPokemon(outPoke);
}
bool Gen2PokemonList::isEgg(uint8_t index)
{
return (getSpeciesAtIndex(index) == 0xFD);
}
bool Gen2PokemonList::getNextPokemon(Gen2TrainerPokemon& outPoke)
{
saveManager_.readByte(outPoke.poke_index);
saveManager_.readByte(outPoke.held_item_index);
saveManager_.readByte(outPoke.index_move1);
saveManager_.readByte(outPoke.index_move2);
saveManager_.readByte(outPoke.index_move3);
saveManager_.readByte(outPoke.index_move4);
saveManager_.readUint16(outPoke.original_trainer_ID, Endianness::BIG);
saveManager_.readUint24(outPoke.exp, Endianness::BIG);
saveManager_.readUint16(outPoke.hp_effort_value, Endianness::BIG);
saveManager_.readUint16(outPoke.atk_effort_value, Endianness::BIG);
saveManager_.readUint16(outPoke.def_effort_value, Endianness::BIG);
saveManager_.readUint16(outPoke.speed_effort_value, Endianness::BIG);
saveManager_.readUint16(outPoke.special_effort_value, Endianness::BIG);
// no endianness stuff for IV. Make sure to keep as is
saveManager_.read(outPoke.iv_data, 2);
saveManager_.readByte(outPoke.pp_move1);
saveManager_.readByte(outPoke.pp_move2);
saveManager_.readByte(outPoke.pp_move3);
saveManager_.readByte(outPoke.pp_move4);
saveManager_.readByte(outPoke.friendship_or_remaining_egg_cycles);
saveManager_.readByte(outPoke.pokerus);
saveManager_.readUint16(outPoke.caught_data, Endianness::BIG);
saveManager_.readByte(outPoke.level);
if(entrySize_ == 48)
{
// party pokemon -> read "temporary" field values
saveManager_.readByte(outPoke.status_condition);
saveManager_.readByte(outPoke.unused_byte);
saveManager_.readUint16(outPoke.current_hp, Endianness::BIG);
saveManager_.readUint16(outPoke.max_hp, Endianness::BIG);
saveManager_.readUint16(outPoke.atk, Endianness::BIG);
saveManager_.readUint16(outPoke.def, Endianness::BIG);
saveManager_.readUint16(outPoke.speed, Endianness::BIG);
saveManager_.readUint16(outPoke.special_atk, Endianness::BIG);
saveManager_.readUint16(outPoke.special_def, Endianness::BIG);
}
else
{
// box pokemon -> recalculate "temporary" field values
outPoke.status_condition = 0;
outPoke.unused_byte = 0;
gen2_recalculatePokeStats(gameReader_, outPoke);
}
return false;
}
bool Gen2PokemonList::setPokemon(uint8_t index, const Gen2TrainerPokemon& orig, bool isEgg)
{
Gen2TrainerPokemon poke;
Gen2PokeStats stats;
uint8_t remainingEggCycles;
// work on a copy of the incoming pokemon
// this is needed to keep it const on passing, but modify it during writing (for the temp stats)
memcpy(&poke, &orig, sizeof(Gen2TrainerPokemon));
// if the pokemon is supposed to be an egg, the species index needs to be set as 0xFD
if(!setSpeciesAtIndex(index, (isEgg) ? 0xFD : poke.poke_index))
{
return false;
}
if(!saveManager_.seek(getSaveOffset() + listCapacity_ + 2 + (index * entrySize_)))
{
return false;
}
if(isEgg)
{
//if the pokemon is supposed to be an egg, the remaining egg cycles field needs to be set accordingly
gameReader_.readPokemonStatsForIndex(poke.poke_index, stats);
remainingEggCycles = stats.egg_cycles;
}
else
{
remainingEggCycles = poke.friendship_or_remaining_egg_cycles;
}
saveManager_.writeByte(poke.poke_index);
saveManager_.writeByte(poke.held_item_index);
saveManager_.writeByte(poke.index_move1);
saveManager_.writeByte(poke.index_move2);
saveManager_.writeByte(poke.index_move3);
saveManager_.writeByte(poke.index_move4);
saveManager_.writeUint16(poke.original_trainer_ID, Endianness::BIG);
saveManager_.writeUint24(poke.exp, Endianness::BIG);
saveManager_.writeUint16(poke.hp_effort_value, Endianness::BIG);
saveManager_.writeUint16(poke.atk_effort_value, Endianness::BIG);
saveManager_.writeUint16(poke.def_effort_value, Endianness::BIG);
saveManager_.writeUint16(poke.speed_effort_value, Endianness::BIG);
saveManager_.writeUint16(poke.special_effort_value, Endianness::BIG);
// no endianness stuff for IV. Make sure to keep as is
saveManager_.write(poke.iv_data, 2);
saveManager_.writeByte(poke.pp_move1);
saveManager_.writeByte(poke.pp_move2);
saveManager_.writeByte(poke.pp_move3);
saveManager_.writeByte(poke.pp_move4);
saveManager_.writeByte(remainingEggCycles);
saveManager_.writeByte(poke.pokerus);
saveManager_.writeUint16(poke.caught_data, Endianness::BIG);
saveManager_.writeByte(poke.level);
if(entrySize_ == 48)
{
// party pokemon -> write "temporary" field values
gen2_recalculatePokeStats(gameReader_, poke);
poke.current_hp = poke.max_hp;
saveManager_.writeByte(poke.status_condition);
saveManager_.writeByte(poke.unused_byte);
saveManager_.writeUint16(poke.current_hp, Endianness::BIG);
saveManager_.writeUint16(poke.max_hp, Endianness::BIG);
saveManager_.writeUint16(poke.atk, Endianness::BIG);
saveManager_.writeUint16(poke.def, Endianness::BIG);
saveManager_.writeUint16(poke.speed, Endianness::BIG);
saveManager_.writeUint16(poke.special_atk, Endianness::BIG);
saveManager_.writeUint16(poke.special_def, Endianness::BIG);
}
return true;
}
bool Gen2PokemonList::add(const Gen2TrainerPokemon& poke, bool isEgg, const char* originalTrainerID, const char* nickname)
{
const uint8_t oldNumberOfPokemon = getNumberOfPokemon();
const uint8_t speciesListTerminator = 0xFF;
if(oldNumberOfPokemon + 1 > getMaxNumberOfPokemon())
{
return false;
}
// first add a terminator on the next entry
if(!setSpeciesAtIndex(oldNumberOfPokemon + 1, speciesListTerminator))
{
// failure
return false;
}
//now add the species index of the new pokemon at the end of the list
if(!setSpeciesAtIndex(oldNumberOfPokemon, poke.poke_index))
{
// failure
return false;
}
if(!setPokemon(oldNumberOfPokemon, poke, isEgg))
{
//failure: undo species index update by replacing it with the terminator
setSpeciesAtIndex(oldNumberOfPokemon, speciesListTerminator);
return false;
}
setOriginalTrainerOfPokemon(oldNumberOfPokemon, originalTrainerID);
if(isEgg)
{
setPokemonNickname(oldNumberOfPokemon, "EGG");
}
else
{
setPokemonNickname(oldNumberOfPokemon, nickname);
}
// if everything was successful, update the counter of the list
return setNumberOfPokemon(oldNumberOfPokemon + 1);
}
const char* Gen2PokemonList::getPokemonNickname(uint8_t index)
{
static char result[20];
const uint8_t pokeTextTerminator = 0x50;
uint8_t encodedNickName[NICKNAME_SIZE];
const uint16_t nicknameOffset = listCapacity_ + 2 + (listCapacity_ * entrySize_) + (listCapacity_ * ORIGINAL_TRAINER_NAME_SIZE) + (index * NICKNAME_SIZE);
if(!saveManager_.seek(getSaveOffset() + nicknameOffset))
{
return nullptr;
}
saveManager_.readUntil(encodedNickName, pokeTextTerminator, NICKNAME_SIZE);
gen2_decodePokeText(encodedNickName, sizeof(encodedNickName), result, sizeof(result));
return result;
}
bool Gen2PokemonList::setPokemonNickname(uint8_t index, const char* nickname)
{
uint8_t encodedNickName[NICKNAME_SIZE];
const uint8_t pokeTextTerminator = 0x50;
if(!nickname)
{
Gen2TrainerPokemon poke;
getPokemon(index, poke);
nickname = gameReader_.getPokemonName(poke.poke_index);
}
const uint16_t encodedLength = gen2_encodePokeText(nickname, strlen(nickname), encodedNickName, NICKNAME_SIZE, pokeTextTerminator);
const uint16_t nicknameOffset = listCapacity_ + 2 + (listCapacity_ * entrySize_) + (listCapacity_ * ORIGINAL_TRAINER_NAME_SIZE) + (index * NICKNAME_SIZE);
if(!saveManager_.seek(getSaveOffset() + nicknameOffset))
{
return false;
}
saveManager_.write(encodedNickName, encodedLength);
return true;
}
const char* Gen2PokemonList::getOriginalTrainerOfPokemon(uint8_t index)
{
static char result[20];
const uint8_t pokeTextTerminator = 0x50;
uint8_t encodedOTName[ORIGINAL_TRAINER_NAME_SIZE];
const uint16_t originalTrainerOffset = listCapacity_ + 2 + (listCapacity_ * entrySize_) + (index * ORIGINAL_TRAINER_NAME_SIZE);
if(!saveManager_.seek(getSaveOffset() + originalTrainerOffset))
{
return nullptr;
}
saveManager_.readUntil(encodedOTName, pokeTextTerminator, NICKNAME_SIZE);
gen2_decodePokeText(encodedOTName, sizeof(encodedOTName), result, sizeof(result));
return result;
}
bool Gen2PokemonList::setOriginalTrainerOfPokemon(uint8_t index, const char* originalTrainerID)
{
uint8_t encodedOTName[ORIGINAL_TRAINER_NAME_SIZE];
const uint8_t pokeTextTerminator = 0x50;
const uint16_t encodedLength = gen2_encodePokeText(originalTrainerID, strlen(originalTrainerID), encodedOTName, ORIGINAL_TRAINER_NAME_SIZE, pokeTextTerminator);
const uint16_t originalTrainerOffset = listCapacity_ + 2 + (listCapacity_ * entrySize_) + (index * ORIGINAL_TRAINER_NAME_SIZE);
if(!saveManager_.seek(getSaveOffset() + originalTrainerOffset))
{
return false;
}
saveManager_.write(encodedOTName, encodedLength);
return true;
}
Gen2Party::Gen2Party(Gen2GameReader& gameReader, ISaveManager& saveManager)
: Gen2PokemonList(gameReader, saveManager, PARTY_LIST_CAPACITY, PARTY_LIST_PKMN_ENTRY_SIZE)
{
}
Gen2Party::~Gen2Party()
{
}
uint32_t Gen2Party::getSaveOffset()
{
return (gameReader_.isGameCrystal()) ? 0x2865 : 0x288A;
}
Gen2Box::Gen2Box(Gen2GameReader& gameReader, ISaveManager& saveManager, uint8_t boxIndex)
: Gen2PokemonList(gameReader, saveManager, PC_BOX_LIST_CAPACITY, PC_BOX_LIST_PKMN_ENTRY_SIZE)
, boxIndex_(boxIndex)
{
}
Gen2Box::~Gen2Box()
{
}
uint32_t Gen2Box::getSaveOffset()
{
uint32_t result;
switch(boxIndex_)
{
case 0:
result = 0x4000;
break;
case 1:
result = 0x4450;
break;
case 2:
result = 0x48A0;
break;
case 3:
result = 0x4CF0;
break;
case 4:
result = 0x5140;
break;
case 5:
result = 0x5590;
break;
case 6:
result = 0x59E0;
break;
case 7:
result = 0x6000;
break;
case 8:
result = 0x6450;
break;
case 9:
result = 0x68A0;
break;
case 10:
result = 0x6CF0;
break;
case 11:
result = 0x7140;
break;
case 12:
result = 0x7590;
break;
case 13:
result = 0x79E0;
break;
default:
result = 0;
break;
}
return result;
}