FREE NoUnauthorisedBuilding : 1.0.2 1.0.2

namespace Oxide.Plugins;

[Info("No Unauthorised Building", "&anhe, kaucsenta", "1.0.2")]
[Description("Protect bases from ladders and twig floors")]
class NoUnauthorisedBuilding : RustPlugin
{
    private object CanBuild(Planner planner, Construction prefab, Construction.Target target)
    {
        BasePlayer player = planner.GetOwnerPlayer();

        if (
            target.entity
                ?.GetBuildingPrivilege(true)
                ?.IsAuthed(player) == false
        ) {
            player.ShowToast(GameTip.Styles.Error, ConstructionErrors.NoPermission);
            
            return player.IsAdmin
                ? null : false;
        }

        return null;
    }
}