public void Draw(float x, float y, float z, float scaleX, float scaleY, string text, Color color)
{
int fontValue, textLength, textBufferLength, fontColor;
float u, v, translation, fontSizeX, fontSizeY, fontWidth, fontHeight, fontMargin;
Matrix4 fontTranslation, fontWorld;
Render.GetWorld(ref world);
Matrix4.CreateTranslation(x, y, 0.0f, out fontTranslation);
Matrix4.Mult(ref world, ref fontTranslation, out fontWorld);
Render.SetWorld(ref fontWorld);
translation = 0.0f;
fontSizeX = 16 * scaleX;
fontSizeY = 16 * scaleY;
fontWidth = 1.0f / 16.0f;
fontHeight = 1.0f / 16.0f;
fontMargin = 1.0f / 256.0f;
fontColor = color.ToArgb();
for (int i = 0, j = 0; i < text.Length; i++, j += 4)
{
fontValue = (int)text[i];
u = (float)(fontValue % 16) * fontWidth + fontMargin;
v = (float)(fontValue >> 4) * fontHeight + fontMargin;
fontVertices[j].Position.X = translation;
fontVertices[j].Position.Y = 0.0f;
fontVertices[j].Position.Z = z;
fontVertices[j].TextureCoordinate.X = u;
fontVertices[j].TextureCoordinate.Y = v + fontHeight;
fontVertices[j].Color = fontColor;
fontVertices[j + 1].Position.X = fontSizeX + translation;
fontVertices[j + 1].Position.Y = 0.0f;
fontVertices[j + 1].Position.Z = z;
fontVertices[j + 1].TextureCoordinate.X = u + fontWidth;
fontVertices[j + 1].TextureCoordinate.Y = v + fontHeight;
fontVertices[j + 1].Color = fontColor;
fontVertices[j + 2].Position.X = translation;
fontVertices[j + 2].Position.Y = fontSizeY;
fontVertices[j + 2].Position.Z = z;
fontVertices[j + 2].TextureCoordinate.X = u;
fontVertices[j + 2].TextureCoordinate.Y = v;
fontVertices[j + 2].Color = fontColor;
fontVertices[j + 3].Position.X = fontSizeX + translation;
fontVertices[j + 3].Position.Y = fontSizeY;
fontVertices[j + 3].Position.Z = z;
fontVertices[j + 3].TextureCoordinate.X = u + fontWidth;
fontVertices[j + 3].TextureCoordinate.Y = v;
fontVertices[j + 3].Color = fontColor;
translation += fontTranslations[fontValue] * scaleX;
}
textLength = text.Length << 2;
textBufferLength = 24 * textLength;
Render.Apply();
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)textBufferLength, IntPtr.Zero, BufferUsageHint.DynamicDraw);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)textBufferLength, fontVertices, BufferUsageHint.DynamicDraw);
GL.DrawArrays(PrimitiveType.TriangleStrip, 0, textLength);
Render.SetWorld(ref world);
}
