public IEnumerable <float> BufferText(string text, float adjustment, Matrix4 transform)
{
float textWidth = measureWidth(text);
float charOffset = textWidth * adjustment;
foreach (char c in text)
{
if (!char.IsWhiteSpace(c))
{
var charInfo = this.characterInfos[c];
for (int v = 0; v < 6; v++)
{
var charPos = Vector4.Transform(
new Vector4(unitQuadTriangles[v].X * charInfo.Aspect + charOffset, unitQuadTriangles[v].Y, 0, 1),
transform
);
foreach (var dataBit in SpriteHelpers.TexturedVertexData(charPos.X, charPos.Y, charInfo.TextureCoords[v].X, charInfo.TextureCoords[v].Y))
{
yield return(dataBit);
}
}
charOffset += charInfo.Aspect;
}
else if (c == ' ')
{
charOffset += SpaceUnitWidth;
}
}
}