libpokemegb/examples/gen2_gsball/main.cpp

#include "gen1/Gen1GameReader.h"
#include "gen1/Gen1DistributionPokemon.h"
#include "gen2/Gen2GameReader.h"
#include "gen2/Gen2DistributionPokemon.h"
#include "RomReader.h"
#include "SaveManager.h"
#include "SpriteRenderer.h"
#include "utils.h"

#include <cstdio>
#include <cstring>
#include <cstdlib>

int main(int argc, char** argv)
{
    if(argc != 3)
    {
        fprintf(stderr, "Usage: gen2_gsball <path/to/rom.gbc> <path/to/file.sav>\n");
        return 1;
    }

    uint8_t* romBuffer;
    uint8_t* saveBuffer;
    uint32_t romFileSize;
    uint32_t saveFileSize;

    romBuffer = readFileIntoBuffer(argv[1], romFileSize);
    if(!romBuffer)
    {
        fprintf(stderr, "ERROR: Couldn't read file %s\n", argv[1]);
        return 1;
    }
    saveBuffer = readFileIntoBuffer(argv[2], saveFileSize);
    if(!saveBuffer)
    {
        fprintf(stderr, "ERROR: Couldn't read file %s\n", argv[2]);
        return 1;
    }

    GameboyCartridgeHeader cartridgeHeader;
    BufferBasedRomReader romReader(romBuffer, romFileSize);
    BufferBasedSaveManager saveManager(saveBuffer, saveFileSize);

    readGameboyCartridgeHeader(romReader, cartridgeHeader);

    //check if we're dealing with gen 2
    const Gen2GameType gen2Type = gen2_determineGameType(cartridgeHeader);
    if(gen2Type == Gen2GameType::INVALID)
    {
        fprintf(stderr, "ERROR: not a gen 2 game!\n");
        return 1;
    }
    if(gen2Type != Gen2GameType::CRYSTAL)
    {
        fprintf(stderr, "ERROR: not Pokémon Crystal!\n");
//        return 1;
    }
    
    Gen2GameReader gameReader(romReader, saveManager, gen2Type);
    gameReader.unlockGsBallEvent();
    gameReader.finishSave();

    FILE* f = fopen(argv[2], "w");
    fwrite(saveBuffer, 1, saveFileSize, f);
    fclose(f);

    free(romBuffer);
    free(saveBuffer);
    romBuffer = 0;
    saveBuffer = 0;
    
    return 0;
}