public override void ExtraOnGUI()
{
base.ExtraOnGUI();
Text.Anchor = TextAnchor.UpperCenter;
DrawPageTitle(new Rect(0f, 5f, UI.screenWidth, 300f));
Text.Anchor = TextAnchor.UpperLeft;
DoCustomBottomButtons();
if (tutorialStartTilePatch.HasValue)
{
tmpTileVertices.Clear();
Find.WorldGrid.GetTileVertices(tutorialStartTilePatch.Value, tmpTileVertices);
Vector3 zero = Vector3.zero;
for (int i = 0; i < tmpTileVertices.Count; i++)
{
zero += tmpTileVertices[i];
}
Color color = GUI.color;
GUI.color = Color.white;
GenUI.DrawArrowPointingAtWorldspace(zero / tmpTileVertices.Count, Find.WorldCamera);
GUI.color = color;
}
}