tbd-station-14/Content.Server/Actions/Actions/DisarmAction.cs

using Content.Server.Act;
using Content.Server.Interaction;
using Content.Server.Notification;
using Content.Server.Weapon.Melee;
using Content.Shared.ActionBlocker;
using Content.Shared.Actions;
using Content.Shared.Actions.Behaviors;
using Content.Shared.Actions.Components;
using Content.Shared.Audio;
using Content.Shared.Cooldown;
using Content.Shared.Interaction.Helpers;
using Content.Shared.Notification.Managers;
using Content.Shared.Sound;
using JetBrains.Annotations;
using Robust.Server.GameObjects;
using Robust.Shared.Audio;
using Robust.Shared.GameObjects;
using Robust.Shared.IoC;
using Robust.Shared.Localization;
using Robust.Shared.Maths;
using Robust.Shared.Player;
using Robust.Shared.Random;
using Robust.Shared.Serialization.Manager.Attributes;
using Robust.Shared.ViewVariables;
using System;
using System.Linq;

namespace Content.Server.Actions.Actions
{
    [UsedImplicitly]
    [DataDefinition]
    public class DisarmAction : ITargetEntityAction
    {
        [DataField("failProb")] private float _failProb = 0.4f;
        [DataField("pushProb")] private float _pushProb = 0.4f;
        [DataField("cooldown")] private float _cooldown = 1.5f;

        [ViewVariables]
        [DataField("punchMissSound")]
        private SoundSpecifier PunchMissSound { get; } = new SoundPathSpecifier("/Audio/Weapons/punchmiss.ogg");

        [ViewVariables]
        [DataField("disarmSuccessSound")]
        private SoundSpecifier DisarmSuccessSound { get; } = new SoundPathSpecifier("/Audio/Effects/thudswoosh.ogg");

        public void DoTargetEntityAction(TargetEntityActionEventArgs args)
        {
            var disarmedActs = args.Target.GetAllComponents<IDisarmedAct>().ToArray();

            if (!args.Performer.InRangeUnobstructed(args.Target)) return;

            if (disarmedActs.Length == 0)
            {
                if (args.Performer.TryGetComponent(out ActorComponent? actor))
                {
                    // Fall back to a normal interaction with the entity
                    var player = actor.PlayerSession;
                    var coordinates = args.Target.Transform.Coordinates;
                    var target = args.Target.Uid;
                    EntitySystem.Get<InteractionSystem>().HandleUseInteraction(player, coordinates, target);
                    return;
                }

                return;
            }

            if (!args.Performer.TryGetComponent<SharedActionsComponent>(out var actions)) return;
            if (args.Target == args.Performer || !EntitySystem.Get<ActionBlockerSystem>().CanAttack(args.Performer)) return;

            var random = IoCManager.Resolve<IRobustRandom>();
            var audio = EntitySystem.Get<AudioSystem>();
            var system = EntitySystem.Get<MeleeWeaponSystem>();

            var diff = args.Target.Transform.MapPosition.Position - args.Performer.Transform.MapPosition.Position;
            var angle = Angle.FromWorldVec(diff);

            actions.Cooldown(ActionType.Disarm, Cooldowns.SecondsFromNow(_cooldown));

            if (random.Prob(_failProb))
            {
                if(PunchMissSound.TryGetSound(out var punchMissSound))
                    SoundSystem.Play(Filter.Pvs(args.Performer), punchMissSound, args.Performer, AudioHelpers.WithVariation(0.025f));

                args.Performer.PopupMessageOtherClients(Loc.GetString("disarm-action-popup-message-other-clients",
                                                                      ("performerName", args.Performer.Name),
                                                                      ("targetName", args.Target.Name)));
                args.Performer.PopupMessageCursor(Loc.GetString("disarm-action-popup-message-cursor",
                                                                ("targetName", args.Target.Name)));
                system.SendLunge(angle, args.Performer);
                return;
            }

            system.SendAnimation("disarm", angle, args.Performer, args.Performer, new []{ args.Target });

            var eventArgs = new DisarmedActEventArgs() {Target = args.Target, Source = args.Performer, PushProbability = _pushProb};

            // Sort by priority.
            Array.Sort(disarmedActs, (a, b) => a.Priority.CompareTo(b.Priority));

            foreach (var disarmedAct in disarmedActs)
            {
                if (disarmedAct.Disarmed(eventArgs))
                    return;
            }

            if(DisarmSuccessSound.TryGetSound(out var disarmSuccessSound))
                SoundSystem.Play(Filter.Pvs(args.Performer), disarmSuccessSound, args.Performer.Transform.Coordinates, AudioHelpers.WithVariation(0.025f));
        }
    }
}