/// <summary>
/// Draws a string at a specified location.
/// </summary>
/// <param name="str">The string to draw..</param>
/// <param name="X">The X location to draw it at.</param>
/// <param name="Y">The Y location to draw it at.</param>
/// <param name="color">The color.</param>
/// <param name="vbo">The VBO to render with.</param>
/// <param name="flip">Whether to flip text upside-down.</param>
/// <returns>The length of the string in pixels.</returns>
public float DrawString(string str, float X, float Y, Vector4 color, TextVBO vbo, bool flip = false)
{
IEnumerable <string> strs = SeparateEmojiAndSpecialChars(str).ToList();
float nX = 0;
if (flip)
{
foreach (string stri in strs)
{
if (stri == "\n")
{
Y += Height;
nX = 0;
}
nX += DrawSingleCharacterFlipped(stri, X + nX, Y, vbo, color);
}
}
else
{
foreach (string stri in strs)
{
if (stri == "\n")
{
Y += Height;
nX = 0;
}
nX += DrawSingleCharacter(stri, X + nX, Y, vbo, color);
}
}
return(nX);
}
/// <summary>
/// Draws a single symbol at a specified location, flipped.
/// </summary>
/// <param name="symbol">The symbol to draw..</param>
/// <param name="X">The X location to draw it at.</param>
/// <param name="Y">The Y location to draw it at.</param>
/// <param name="vbo">The VBO to render with.</param>
/// <param name="color">The color.</param>
/// <returns>The length of the character in pixels.</returns>
public float DrawSingleCharacterFlipped(string symbol, float X, float Y, TextVBO vbo, Vector4 color)
{
RectangleF rec = RectForSymbol(symbol);
vbo.AddQuad(X, Y, X + rec.Width, Y + rec.Height, rec.X / GLFontEngine.DEFAULT_TEXTURE_SIZE_WIDTH, rec.Y / GLFontEngine.DEFAULT_TEXTURE_SIZE_WIDTH,
(rec.X + rec.Width) / Engine.CurrentHeight, (rec.Y + rec.Height) / Engine.CurrentHeight, color);
return(rec.Width);
}