Added DrawRotatedStringDecal() and DrawRotatedStringPropDecal()

[Oso-Grande]

Added DrawRotatedStringDecal() and DrawRotatedStringPropDecal() which render text at any angle using any offset as the centre point.

[OneLoneCoder]

Heh, I was looking to implement this, and it never occurred to me to use the rotation offset.... duh... lol 😂

[Boltie]

I needed to add this function last year except I just copied DrawStringDecal and amended it to use DrawPartialRotatedDecal. I also named it DrawStringRotatedDecal as that seemed to fit the naming convention better. There are some differences to the commit here but I've no idea which would be better. I just know the below worked well for my use.

void PixelGameEngine::DrawStringRotatedDecal(const olc::vf2d& pos, const std::string& sText, const float fAngle, const olc::vf2d& center, const Pixel col, const olc::vf2d& scale)
{
olc::vf2d spos = { 0.0f, 0.0f };
for (auto c : sText)
{
if (c == '\n')
{
spos.x = 0; spos.y += 8.0f * scale.y;
}
else
{
int32_t ox = (c - 32) % 16;
int32_t oy = (c - 32) / 16;
DrawPartialRotatedDecal(pos + spos, fontDecal, fAngle, center, { float(ox) * 8.0f, float(oy) * 8.0f }, { 8.0f, 8.0f }, scale, col);
spos.x += 8.0f * scale.x;
}
}
}