function scr_set_shadow(arg0)
{
    if (arg0 == 2)
    {
        with (obj_sunshadows)
        {
            evening_mode = true;
            highlight_mode = -1;
            colour_shadowblend = 2293795;
            alpha_shadowblend = 0.5;
            skew_amt = -90;
            layer_set_visible("Town_Shadows_morning_a", false);
            layer_set_visible("Town_Shadows_morning_cutout", false);
            layer_set_visible("Town_Shadows_morning", false);
            tile_layer_names = ["Town_Shadows_evening"];
            asset_layer_names = ["Town_Shadows_evening_a", "Town_Shadows_evening_carts"];
            cutout_tile_layer_names = [];
            cutout_asset_layer_names = ["Town_Shadows_evening_cutout"];
            free_surfaces();
        }
    }
    else if (arg0 == 1)
    {
        with (obj_sunshadows)
        {
            evening_mode = false;
            highlight_mode = 0;
            colour_shadowblend = 3671309;
            alpha_shadowblend = 0.3;
            skew_amt = 45;
            layer_set_visible("Town_Shadows_evening_a", false);
            layer_set_visible("Town_Shadows_evening_cutout", false);
            layer_set_visible("Town_Shadows_evening", false);
            tile_layer_names = ["Town_Shadows_morning"];
            asset_layer_names = ["Town_Shadows_morning_a"];
            cutout_tile_layer_names = [];
            cutout_asset_layer_names = ["Town_Shadows_morning_cutout"];
            free_surfaces();
        }
    }
    else if (arg0 == 0)
    {
        layer_set_visible("Town_Shadows_evening_a", false);
        layer_set_visible("Town_Shadows_evening_cutout", false);
        layer_set_visible("Town_Shadows_evening", false);
        layer_set_visible("Town_Shadows_morning_a", false);
        layer_set_visible("Town_Shadows_morning_cutout", false);
        layer_set_visible("Town_Shadows_morning", false);
        free_surfaces();
    }
}