H.O.N.K. mech (#14670)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Shared/Mech/Equipment/Components/MechSoundboardComponent.cs

@@ -0,0 +1,16 @@
+using Content.Shared.Mech.Equipment.Systems;
+using Robust.Shared.Audio;
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Mech.Equipment.Components;
+
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+[Access(typeof(MechSoundboardSystem))]
+public sealed partial class MechSoundboardComponent : Component
+{
+    /// <summary>
+    /// List of sounds that can be played
+    /// </summary>
+    [DataField("sounds"), ViewVariables(VVAccess.ReadWrite), AutoNetworkedField]
+    public List<SoundCollectionSpecifier> Sounds = new();
+}

Content.Shared/Mech/Equipment/Systems/MechSoundboardSystem.cs

@@ -0,0 +1,57 @@
+using Content.Shared.Mech;
+using Content.Shared.Mech.Equipment.Components;
+using Content.Shared.Mech.Equipment.Systems;
+using Content.Shared.Timing;
+using Robust.Shared.Audio;
+using System.Linq;
+
+namespace Content.Shared.Mech.Equipment.Systems;
+
+/// <summary>
+/// Handles everything for mech soundboard.
+/// </summary>
+public sealed class MechSoundboardSystem : EntitySystem
+{
+    [Dependency] private readonly SharedAudioSystem _audio = default!;
+    [Dependency] private readonly UseDelaySystem _useDelay = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<MechSoundboardComponent, MechEquipmentUiStateReadyEvent>(OnUiStateReady);
+        SubscribeLocalEvent<MechSoundboardComponent, MechEquipmentUiMessageRelayEvent>(OnSoundboardMessage);
+    }
+
+    private void OnUiStateReady(EntityUid uid, MechSoundboardComponent comp, MechEquipmentUiStateReadyEvent args)
+    {
+        // you have to specify a collection so it must exist probably
+        var sounds = comp.Sounds.Select(sound => sound.Collection!);
+        var state = new MechSoundboardUiState
+        {
+            Sounds = sounds.ToList()
+        };
+        args.States.Add(uid, state);
+    }
+
+    private void OnSoundboardMessage(EntityUid uid, MechSoundboardComponent comp, MechEquipmentUiMessageRelayEvent args)
+    {
+        if (args.Message is not MechSoundboardPlayMessage msg)
+            return;
+
+        if (!TryComp<MechEquipmentComponent>(uid, out var equipment) ||
+            equipment.EquipmentOwner == null)
+            return;
+
+        if (msg.Sound >= comp.Sounds.Count)
+            return;
+
+        if (_useDelay.ActiveDelay(uid))
+            return;
+
+        // honk!!!!!
+        var mech = equipment.EquipmentOwner.Value;
+        _useDelay.BeginDelay(uid);
+        _audio.PlayPvs(comp.Sounds[msg.Sound], uid);
+    }
+}

Content.Shared/Mech/MechUI.cs

@@ -67,6 +67,21 @@ public sealed class MechGrabberEjectMessage : MechEquipmentUiMessage
     }
 }
 
+/// <summary>
+/// Event raised for the soundboard equipment to play a sound from its component
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class MechSoundboardPlayMessage : MechEquipmentUiMessage
+{
+    public int Sound;
+
+    public MechSoundboardPlayMessage(EntityUid equipment, int sound)
+    {
+        Equipment = equipment;
+        Sound = sound;
+    }
+}
+
 /// <summary>
 /// BUI state for mechs that also contains all equipment ui states.
 /// </summary>
@@ -100,3 +115,12 @@ public sealed class MechGrabberUiState : BoundUserInterfaceState
     public List<EntityUid> Contents = new();
     public int MaxContents;
 }
+
+/// <summary>
+/// List of sound collection ids to be localized and displayed.
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class MechSoundboardUiState : BoundUserInterfaceState
+{
+    public List<string> Sounds = new();
+}