/// <summary>
/// Makes terrain visible and sets its foreground color to its regular value.
/// </summary>
/// <param name="terrain">Terrain to modify.</param>
protected override void UpdateTerrainSeen(TileBase terrain)
{
terrain.IsVisible = true;
// If the appearances don't match currently, synchronize them
if (!terrain.LastSeenAppereance.Matches(terrain))
{
terrain.CopyAppearanceFrom(terrain.LastSeenAppereance);
}
}