Method LoadFnt

Engine/source/EtRendering/GraphicsTypes/SpriteFont.cpp:379–514

--------------------------------- TextureAsset::LoadFnt Loads a Sprite font from an FNT file

// Loads a Sprite font from an FNT file
//
SpriteFont* FontAsset::LoadFnt(const std::vector<uint8>& binaryContent)
{
	auto pBinReader = new core::BinaryReader(); //Prevent memory leaks
	pBinReader->Open(binaryContent);

	if (!pBinReader->Exists())
	{
		delete pBinReader;
		LOG("SpriteFont::Load > Failed to read the assetFile!", core::LogLevel::Warning);

		return nullptr;
	}
	bool valid = false;
	if (pBinReader->Read<char>() == 'B')
	{
		if (pBinReader->Read<char>() == 'M')
		{
			if (pBinReader->Read<char>() == 'F')
			{
				valid = true;
			}
		}
	}
	if (!valid)
	{
		LOG("Font file header invalid!", core::LogLevel::Warning);
		return nullptr;
	}
	if (pBinReader->Read<char>() < 3)
	{
		LOG("Font version invalid!", core::LogLevel::Warning);
		return nullptr;
	}

	SpriteFont* pFont = new SpriteFont();

	//**********
	// BLOCK 0 *
	//**********
	pBinReader->Read<char>();
	auto Block0Size = pBinReader->Read<int32>();
	int32 pos = pBinReader->GetBufferPosition();
	pFont->m_FontSize = pBinReader->Read<int16>();
	pBinReader->SetBufferPosition(pos + 14);
	std::string fn;
	char cur = pBinReader->Read<char>();
	while (cur != '\0')
	{
		fn += cur;
		cur = pBinReader->Read<char>();
	}
	pFont->m_FontName = fn;
	pBinReader->SetBufferPosition(pos + Block0Size);
	//**********
	// BLOCK 1 *
	//**********
	pBinReader->Read<char>();
	auto Block1Size = pBinReader->Read<int32>();