public void PushVertex(Vector2 vertex, Color color)
{
PrimitiveBatchNeeded();
if (_texture != null)
{
_primitiveBatch.AddVertex(vertex, color, Vector2.Zero);
}
else
{
_primitiveBatch.AddVertex(vertex, color);
}
}
void DrawGlyph(PrimitiveBatch primitiveBatch, Glyph glyph, ref Vector2 position, ref Color color, float scale, ref Vector2 right, ref Vector2 down)
{
float topLeftX = (glyph.X - 1) / (float)FontSheet.Width;
float topLeftY = (glyph.Y - 1) / (float)FontSheet.Height;
float bottomRightX = (float)(glyph.X + glyph.Width + 1) / (float)FontSheet.Width;
float bottomRightY = (float)(glyph.Y + glyph.Height + 1) / (float)FontSheet.Height;
Vector2 topLeft = position - (right + down) * scale;
Vector2 topRight = position + (right - down) * scale + right * glyph.Width * scale;
Vector2 bottomLeft = position - (right - down) * scale + down * glyph.Height * scale;
Vector2 bottomRight = position + (right + down) * scale + right * glyph.Width * scale + down * glyph.Height * scale;
primitiveBatch.AddVertex(topLeft.X, topLeft.Y, ref color, topLeftX, topLeftY);
primitiveBatch.AddVertex(bottomLeft.X, bottomLeft.Y, ref color, topLeftX, bottomRightY);
primitiveBatch.AddVertex(topRight.X, topRight.Y, ref color, bottomRightX, topLeftY);
primitiveBatch.AddVertex(bottomLeft.X, bottomLeft.Y, ref color, topLeftX, bottomRightY);
primitiveBatch.AddVertex(topRight.X, topRight.Y, ref color, bottomRightX, topLeftY);
primitiveBatch.AddVertex(bottomRight.X, bottomRight.Y, ref color, bottomRightX, bottomRightY);
}