void BuyCityButton()
{
GUI.enabled = Earth.GlobalCurrency > 100;
GUILayout.BeginVertical();
if (GUILayout.Button("Buy City", ButtonStyle, GUILayout.Height(75)))
{
isPickingLocation = true;
placementLabelRect = GetTopLabelRect("Right Click to Place Residential Sector");
earth.BuildNewCity();
Earth.SpendGlobalCurrency(100);
}
GUILayout.Label("Cost: $100M", Header2Style);
GUILayout.Label("Population Capacity: 100Million", BodyStyle);
GUILayout.EndVertical();
}