Method readTooltipsFromFile

src/mod_tools.cpp:1726–2068

#ifndef EDITOR
void ItemTooltips_t::readTooltipsFromFile(bool forceLoadBaseDirectory)
{
	if ( !PHYSFS_getRealDir("/items/item_tooltips.json") )
	{
		printlog("[JSON]: Error: Could not find file: items/item_tooltips.json");
		return;
	}

	std::string inputPath = PHYSFS_getRealDir("/items/item_tooltips.json");
	if ( forceLoadBaseDirectory )
	{
		inputPath = BASE_DATA_DIR;
	}
	else
	{
		if ( inputPath != BASE_DATA_DIR )
		{
			readTooltipsFromFile(true); // force load the base directory first, then modded paths later.
		}
		else
		{
			forceLoadBaseDirectory = true;
		}
	}

	inputPath.append("/items/item_tooltips.json");

	File* fp = FileIO::open(inputPath.c_str(), "rb");
	if ( !fp )
	{
		printlog("[JSON]: Error: Could not open json file %s", inputPath.c_str());
		return;
	}

	constexpr uint32_t buffer_size = (1 << 20); // 1mb
	if ( fp->size() >= buffer_size )
	{
		printlog("[JSON]: Error: file size is too large to fit in buffer! %s", inputPath.c_str());
		FileIO::close(fp);
		return;
	}

	static char buf[buffer_size];
	const int count = fp->read(buf, sizeof(buf[0]), sizeof(buf) - 1);
	buf[count] = '\0';
	//rapidjson::FileReadStream is(fp, buf, sizeof(buf)); - use this for large chunks.
	rapidjson::StringStream is(buf);

	rapidjson::Document d;
	d.ParseStream(is);
	FileIO::close(fp);

	if ( !d.IsObject() )
	{
		printlog("[JSON]: Error: json file does not define a complete object. Is there a syntax error? %s", inputPath.c_str());
		return;
	}