FakeClicks.cs

namespace LeagueSharp.Common
{
    using System;
    using System.Linq;

    using SharpDX;

    /// <summary>
    ///     Simulates clicks.
    /// </summary>
    internal static class FakeClicks
    {
        #region Static Fields

        /// <summary>
        ///     The delta t for click frequency
        /// </summary>
        private static readonly float deltaT = 0.15f;

        /// <summary>
        ///     The Random number generator
        /// </summary>
        private static readonly Random r = new Random();

        /// <summary>
        ///     The root menu.
        /// </summary>
        private static readonly Menu root = new Menu("FakeClicks", "Fake Clicks");

        /// <summary>
        ///     If the user is attacking
        ///     Currently used for the second style of fake clicks
        /// </summary>
        private static bool attacking;

        /// <summary>
        ///     The last direction of the player
        /// </summary>
        private static Vector3 direction;

        /// <summary>
        ///     The last endpoint the player was moving to.
        /// </summary>
        private static Vector3 lastEndpoint;

        /// <summary>
        ///     The last order the player had.
        /// </summary>
        private static GameObjectOrder lastOrder;

        /// <summary>
        ///     The time of the last order the player had.
        /// </summary>
        private static float lastOrderTime;

        /// <summary>
        ///     The last time a click was done.
        /// </summary>
        private static float lastTime;

        /// <summary>
        ///     The Player.
        /// </summary>
        private static Obj_AI_Hero player;

        #endregion

        #region Public Properties

        /// <summary>
        ///     Gets a value indicating whether this <see cref="FakeClicks" /> is enabled.
        /// </summary>
        /// <value>
        ///     <c>true</c> if enabled; otherwise, <c>false</c>.
        /// </value>
        public static bool Enabled
        {
            get
            {
                return root.Item("Enable").IsActive();
            }
        }

        #endregion

        #region Public Methods and Operators

        /// <summary>
        ///     Initializes this instance.
        /// </summary>
        public static void Initialize()
        {
            CustomEvents.Game.OnGameLoad += Game_OnGameLoad;
        }

        public static void Shutdown()
        {
            CustomEvents.Game.OnGameLoad -= Game_OnGameLoad;
            Obj_AI_Base.OnNewPath -= DrawFake;
            Orbwalking.BeforeAttack -= BeforeAttackFake;
            Spellbook.OnCastSpell -= BeforeSpellCast;
            Orbwalking.AfterAttack -= AfterAttack;
            Obj_AI_Base.OnIssueOrder -= OnIssueOrder;

            Menu.Remove(root);
        }

        #endregion

        #region Methods

        /// <summary>
        ///     The move fake click after attacking
        /// </summary>
        /// <param name="unit">
        ///     The unit.
        /// </param>
        /// <param name="target">
        ///     The target.
        /// </param>
        private static void AfterAttack(AttackableUnit unit, AttackableUnit target)
        {
            attacking = false;
            var t = target as Obj_AI_Hero;
            if (t != null && unit.IsMe)
            {
                ShowClick(RandomizePosition(t.Position), ClickType.Move);
            }
        }

        /// <summary>
        ///     The before attack fake click.
        ///     Currently used for the second style of fake clicks
        /// </summary>
        /// <param name="args">
        ///     The args.
        /// </param>
        private static void BeforeAttackFake(Orbwalking.BeforeAttackEventArgs args)
        {
            if (root.Item("Click Mode").GetValue<StringList>().SelectedIndex == 1)
            {
                ShowClick(RandomizePosition(args.Target.Position), ClickType.Attack);
                attacking = true;
            }
        }

        /// <summary>
        ///     The fake click before you cast a spell
        /// </summary>
        /// <param name="s">
        ///     The Spell Book.
        /// </param>
        /// <param name="args">
        ///     The args.
        /// </param>
        private static void BeforeSpellCast(Spellbook s, SpellbookCastSpellEventArgs args)
        {
            var target = args.Target;

            if (target == null)
            {
                return;
            }

            if (target.Position.Distance(player.Position) >= 5f)
            {
                ShowClick(args.Target.Position, ClickType.Attack);
            }
        }

        /// <summary>
        ///     The on new path fake.
        ///     Currently used for the second style of fake clicks
        /// </summary>
        /// <param name="sender">
        ///     The sender.
        /// </param>
        /// <param name="args">
        ///     The args.
        /// </param>
        private static void DrawFake(Obj_AI_Base sender, GameObjectNewPathEventArgs args)
        {
            if (sender.IsMe && lastTime + deltaT < Game.Time && args.Path.LastOrDefault() != lastEndpoint
                && args.Path.LastOrDefault().Distance(player.ServerPosition) >= 5f && root.Item("Enable").IsActive()
                && root.Item("Click Mode").GetValue<StringList>().SelectedIndex == 1)
            {
                lastEndpoint = args.Path.LastOrDefault();
                if (!attacking)
                {
                    ShowClick(Game.CursorPos, ClickType.Move);
                }
                else
                {
                    ShowClick(Game.CursorPos, ClickType.Attack);
                }

                lastTime = Game.Time;
            }
        }

        /// <summary>
        ///     Fired when the game loads.
        /// </summary>
        /// <param name="args">The <see cref="EventArgs" /> instance containing the event data.</param>
        private static void Game_OnGameLoad(EventArgs args)
        {
            root.AddItem(new MenuItem("Enable", "Enable").SetValue(false));
            root.AddItem(new MenuItem("Click Mode", "Click Mode"))
                .SetValue(new StringList(new[] { "Evade, No Cursor Position", "Cursor Position, No Evade" }));

            CommonMenu.Instance.AddSubMenu(root);

            player = ObjectManager.Player;

            Obj_AI_Base.OnNewPath += DrawFake;
            Orbwalking.BeforeAttack += BeforeAttackFake;
            Spellbook.OnCastSpell += BeforeSpellCast;
            Orbwalking.AfterAttack += AfterAttack;
            Obj_AI_Base.OnIssueOrder += OnIssueOrder;
        }

        /// <summary>
        ///     The OnIssueOrder event delegate.
        ///     Currently used for the first style of fake clicks
        /// </summary>
        /// <param name="sender">
        ///     The sender.
        /// </param>
        /// <param name="args">
        ///     The args.
        /// </param>
        private static void OnIssueOrder(Obj_AI_Base sender, GameObjectIssueOrderEventArgs args)
        {
            if (sender.IsMe
                && (args.Order == GameObjectOrder.MoveTo || args.Order == GameObjectOrder.AttackUnit
                    || args.Order == GameObjectOrder.AttackTo)
                && lastOrderTime + r.NextFloat(deltaT, deltaT + .2f) < Game.Time && root.Item("Enable").IsActive()
                && root.Item("Click Mode").GetValue<StringList>().SelectedIndex == 0)
            {
                var vect = args.TargetPosition;
                vect.Z = player.Position.Z;
                if (args.Order == GameObjectOrder.AttackUnit || args.Order == GameObjectOrder.AttackTo)
                {
                    ShowClick(RandomizePosition(vect), ClickType.Attack);
                }
                else
                {
                    ShowClick(vect, ClickType.Move);
                }

                lastOrderTime = Game.Time;
            }
        }

        /// <summary>
        ///     The RandomizePosition function to randomize click location.
        /// </summary>
        /// <param name="input">
        ///     The input Vector3.
        /// </param>
        /// <returns>
        ///     A Vector within 100 units of the unit
        /// </returns>
        private static Vector3 RandomizePosition(Vector3 input)
        {
            if (r.Next(2) == 0)
            {
                input.X += r.Next(100);
            }
            else
            {
                input.Y += r.Next(100);
            }

            return input;
        }

        /// <summary>
        ///     Shows the click.
        /// </summary>
        /// <param name="position">The position.</param>
        /// <param name="type">The type.</param>
        private static void ShowClick(Vector3 position, ClickType type)
        {
            if (!Enabled)
            {
                return;
            }

            Hud.ShowClick(type, position);
        }

        #endregion
    }
}