Mod.hpp

#include <vector>
#include "BinaryReader.h"

int load_mod(std::ostream* out, std::string& input, bool debug, bool optional_ints)
{
    std::ifstream fin(input, std::ios_base::binary);
    fin.seekg(0, std::ios::end);
    const size_t fileSize = fin.tellg();
    fin.seekg(0, std::ios::beg);
    std::vector<uint8_t> buffer(fileSize);
    fin.read(reinterpret_cast<char*>(buffer.data()), fileSize);
    fin.close();
    BinaryReader reader(buffer);
	uint32_t version;
    *out << "Version: " << (version = reader.read<uint32_t>()) << '\n';

	for (short a = 0; a < 2; a++)
	{
		const uint32_t objects = reader.read<uint32_t>();
		std::string base_id, id;
		for (size_t i = 0; i < objects; i++)
		{
			*out << '\n'
				 << "Original ID: " << (base_id = reader.read_string(4)) << '\n'
				 << "Modified ID: " << (id = reader.read_string(4)) << '\n';

			if (version >= 3) reader.advance(4 * reader.read<uint32_t>());

			if (id == "") id = base_id;
			const uint32_t modifications = reader.read<uint32_t>();
			for (size_t j = 0; j < modifications; j++)
			{
				*out << id << ": Modification ID: " << reader.read_string(4) << '\n';
				const uint32_t type = reader.read<uint32_t>();
				if (optional_ints)
					*out << id << ": Level variation: " << reader.read<uint32_t>() << '\n'
					<< id << ": Data pointer: " << reader.read<uint32_t>() << '\n';

				std::string data;
				switch (type)
				{
					case 0:
						data = std::to_string(reader.read<int>());
						break;
					case 1:
					case 2:
						data = std::to_string(reader.read<float>());
						break;
					case 3:
						data = reader.read_c_string();
						break;
					default:
						*out << id << ": ERROR: Unknown data type " << type << " while loading modification table.";
						return 13;
				}
				*out << id << ": Modification data: " << data << '\n';
				if (debug)
					*out << id << ": DEBUG: Trail: " << reader.read_string(4) << '\n';
				else
					reader.advance(4);
			}
		}
	}
	return 0;
}