FREE HelicopterInstantTakeoff : 0.1.0 0.1.0

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using Oxide.Core;
using System;
using System.Collections.Generic;

namespace Oxide.Plugins
{
	[Info("Helicopter Instant Takeoff", "bsdinis", "0.1.0")]
	[Description("Allows helicopters to takeoff instantly when the engine starts.")]
	class HelicopterInstantTakeoff : RustPlugin
	{
		void Init()
		{
			try
			{
				config = Config.ReadObject<ConfigData>();
				if (config == null)
				{
					throw new Exception();
				}
				else
				{
					SaveConfig();
				}
			}
			catch
			{
				PrintError("CONFIG FILE IS INVALID!\nCheck config file and reload HelicopterInstantTakeoff.");
				Interface.Oxide.UnloadPlugin(Name);
				return;
			}

			if (!string.IsNullOrWhiteSpace(config.AirPermission) && !permission.PermissionExists(config.AirPermission))
			{
				permission.RegisterPermission(config.AirPermission, this);
			}
			if (!string.IsNullOrWhiteSpace(config.GroundPermission) && !permission.PermissionExists(config.GroundPermission))
			{
				permission.RegisterPermission(config.GroundPermission, this);
			}
		}

		ConfigData config;
		class ConfigData
		{
			public string AirPermission;
			public string GroundPermission;
		}

		protected override void LoadDefaultConfig()
		{
			config = new ConfigData
			{
				AirPermission = "helicopterinstanttakeoff.air",
				GroundPermission = "helicopterinstanttakeoff.ground"
			};
		}

		protected override void SaveConfig() => Config.WriteObject(config, true);

		bool DriverHasPermission(PlayerHelicopter heli, string perm)
		{
			List<BaseVehicle.MountPointInfo> mountPoints = heli.mountPoints;
			if (mountPoints == null || mountPoints.Count < 1)
			{
				return false;
			}
			BaseMountable mountable = mountPoints[0].mountable;
			if (mountable == null)
			{
				return false;
			}
			BasePlayer player = mountable._mounted;
			if (player == null || (!string.IsNullOrWhiteSpace(perm) && !permission.UserHasPermission(player.UserIDString, perm)))
			{
				return false;
			}
			return true;
		}

		object OnEngineStart(PlayerHelicopter heli)
		{
			if (!DriverHasPermission(heli, (!heli.IsGrounded() ? config.AirPermission : config.GroundPermission)))
			{
				return null;
			}
			heli.engineController.FinishStartingEngine();
			return false;
		}
	}
}