Adds Handheld Radio/Listener system

Content.Server/Chat/ChatManager.cs

@@ -10,6 +10,15 @@
 using Robust.Shared.Interfaces.Network;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
+using Robust.Shared.Log;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using System;
+using Content.Server.GameObjects.Components;
+using System.Collections.Generic;
+using Content.Server.GameObjects.Components.Interactable;
+using Content.Server.GameObjects.EntitySystems;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Robust.Shared.Interfaces.Map;
 
 namespace Content.Server.Chat
 {
@@ -21,6 +30,7 @@ internal sealed class ChatManager : IChatManager
         private const int VoiceRange = 7; // how far voice goes in world units
 
 #pragma warning disable 649
+        [Dependency] private readonly IEntitySystemManager _entitySystemManager;
         [Dependency] private readonly IServerNetManager _netManager;
         [Dependency] private readonly IPlayerManager _playerManager;
         [Dependency] private readonly ILocalizationManager _localizationManager;
@@ -67,6 +77,9 @@ public void EntitySay(IEntity source, string message)
             msg.MessageWrap = $"{source.Name} says, \"{{0}}\"";
             msg.SenderEntity = source.Uid;
             _netManager.ServerSendToMany(msg, clients.ToList());
+
+            var listeners = _entitySystemManager.GetEntitySystem<ListeningSystem>();
+            listeners.PingListeners(source, pos, message);
         }
 
         public void EntityMe(IEntity source, string action)

Content.Server/GameObjects/Components/ListeningComponent.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Content.Server.GameObjects.Components.Interactable;
+using Content.Server.GameObjects.EntitySystems;
+using Content.Server.Interfaces;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Components;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.IoC;
+
+namespace Content.Server.GameObjects.Components
+{
+    [RegisterComponent]
+    public class ListeningComponent : Component
+    {
+
+        public override string Name => "Listening";
+
+        public void PassSpeechData(string speech, IEntity source, float distance)
+        {
+
+            foreach (var listener in Owner.GetAllComponents<IListen>())
+            {
+                if (distance > listener.GetListenRange()) { continue; }
+                listener.HeardSpeech(speech, source);
+            }
+        }
+    }
+}

Content.Server/GameObjects/Components/RadioComponent.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Content.Server.GameObjects.EntitySystems;
+using Content.Server.Interfaces;
+using Content.Server.Interfaces.Chat;
+using Content.Server.Interfaces.GameObjects.Components.Interaction;
+using Content.Shared.Interfaces.GameObjects.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Components;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Server.GameObjects.Components.Interactable
+{
+    [RegisterComponent]
+    class RadioComponent : Component, IUse, IListen
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IEntitySystemManager _entitySystemManager = default!;
+        [Dependency] private readonly IServerNotifyManager _notifyManager = default!;
+#pragma warning restore 649
+
+        public override string Name => "Radio";
+
+        private bool _radioOn;
+        private int _listenRange = 7;
+        private RadioSystem _radioSystem = default!;
+
+        [ViewVariables]
+        public bool RadioOn
+        {
+            get => _radioOn;
+            private set
+            {
+                _radioOn = value;
+                Dirty();
+            }
+        }
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            _radioSystem = _entitySystemManager.GetEntitySystem<RadioSystem>();
+
+            RadioOn = false;
+        }
+
+        public void PassOnMessage(string message)
+        {
+            if(RadioOn)
+            {
+                _radioSystem.SpreadMessage(Owner, message);
+            }
+        }
+
+        public void Speaker(string message)
+        {
+            var chat = IoCManager.Resolve<IChatManager>();
+            chat.EntitySay(Owner, message);
+        }
+
+        public bool UseEntity(UseEntityEventArgs eventArgs)
+        {
+            RadioOn = !RadioOn;
+            if(RadioOn)
+            {
+                _notifyManager.PopupMessage(Owner, eventArgs.User, "The radio is now on.");
+            }
+            else
+            {
+                _notifyManager.PopupMessage(Owner, eventArgs.User, "The radio is now off.");
+            }
+            return true;
+        }
+
+        public void HeardSpeech(string speech, IEntity source)
+        {
+            PassOnMessage(speech);
+        }
+
+        public int GetListenRange()
+        {
+            return _listenRange;
+        }
+    }
+}

Content.Server/GameObjects/EntitySystems/ListeningSystem.cs

@@ -0,0 +1,38 @@
+using Content.Server.GameObjects.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Interfaces.Map;
+using Robust.Shared.IoC;
+using Robust.Shared.Map;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Content.Server.GameObjects.EntitySystems
+{
+    class ListeningSystem : EntitySystem
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IMapManager _mapManager;
+        [Dependency] private readonly IEntitySystemManager _entitySystemManager;
+#pragma warning restore 649
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            EntityQuery = new TypeEntityQuery(typeof(ListeningComponent));
+        }
+
+        public void PingListeners(IEntity source, GridCoordinates sourcePos, string message)
+        {
+            foreach (var listener in RelevantEntities)
+            {
+                var dist = sourcePos.Distance(_mapManager, listener.Transform.GridPosition);
+
+                listener.GetComponent<ListeningComponent>()
+                        .PassSpeechData(message, source, dist);
+            }
+        }
+    }
+}

Content.Server/GameObjects/EntitySystems/RadioSystem.cs

@@ -0,0 +1,49 @@
+using Content.Server.GameObjects.Components.Interactable;
+using JetBrains.Annotations;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.Interfaces.GameObjects;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Content.Server.GameObjects.EntitySystems
+{
+    class RadioSystem : EntitySystem
+    {
+        private List<string> _messages;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            EntityQuery = new TypeEntityQuery(typeof(RadioComponent));
+            _messages = new List<string>();
+        }
+
+        public void SpreadMessage(IEntity source, string message)
+        {
+            if (_messages.Contains(message))
+            {
+                return;
+            }
+
+            _messages.Add(message);
+
+            foreach (var radioEntity in RelevantEntities)
+            {
+                var radio = radioEntity.GetComponent<RadioComponent>();
+                if (radioEntity == source || !radio.RadioOn)
+                {
+                    continue;
+                }
+
+                radio.Speaker(message);
+            }
+
+            _messages.Remove(message);
+        }
+    }
+}

Content.Server/Interfaces/IListen.cs

@@ -0,0 +1,17 @@
+using Robust.Shared.Interfaces.GameObjects;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Content.Server.Interfaces
+{
+    /// <summary>
+    ///     Interface for objects such as radios meant to have an effect when speech is heard.
+    /// </summary>
+    public interface IListen
+    {
+        void HeardSpeech(string speech, IEntity source);
+
+        int GetListenRange();
+    }
+}

Resources/Prototypes/Entities/Objects/radio.yml

@@ -0,0 +1,18 @@
+- type: entity
+  name: "baseradio"
+  parent: BaseItem
+  id: BaseRadio
+  abstract: true
+
+- type: entity
+  name: "Handheld Radio"
+  description: A handy handheld radio.
+  parent: BaseRadio
+  id: handrad
+  components:
+  - type: Sprite
+    texture: Objects/Devices/radio.png
+  - type: Icon
+    texture: Objects/Devices/radio.png
+  - type: Listening
+  - type: Radio