Research machinery requires power (#516)

* Fixed ResearchPointSourceComponent properties

* ResearchPointSourceComponent requires power

* ResearchServerComponent requires power

Content.Server/GameObjects/Components/Power/PowerDevice.cs

@@ -98,7 +98,7 @@ namespace Content.Server.GameObjects.Components.Power
         }
         private Powernet.Priority _priority = Powernet.Priority.Medium;
 
-        [ViewVariables]
+        [ViewVariables(VVAccess.ReadWrite)]
         public bool IsPowerCut
         {
             get => _isPowerCut;

Content.Server/GameObjects/Components/Research/ResearchPointSourceComponent.cs

@@ -1,3 +1,4 @@
+using Content.Server.GameObjects.Components.Power;
 using Content.Server.GameObjects.EntitySystems;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Serialization;
@@ -13,19 +14,32 @@ namespace Content.Server.GameObjects.Components.Research
 
         private int _pointsPerSecond;
         private bool _active;
+        private PowerDeviceComponent _powerDevice;
 
         [ViewVariables]
         public int PointsPerSecond
         {
             get => _pointsPerSecond;
-            set => value = _pointsPerSecond;
+            set => _pointsPerSecond = value;
         }
 
         [ViewVariables]
         public bool Active
         {
             get => _active;
-            set => value = _active;
+            set => _active = value;
+        }
+
+        /// <summary>
+        /// Whether this can be used to produce research points.
+        /// </summary>
+        /// <remarks>If no <see cref="PowerDeviceComponent"/> is found, it's assumed power is not required.</remarks>
+        public bool CanProduce => Active && (_powerDevice is null || _powerDevice.Powered);
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            Owner.TryGetComponent(out _powerDevice);
         }
 
         public override void ExposeData(ObjectSerializer serializer)

Content.Server/GameObjects/Components/Research/ResearchServerComponent.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using Content.Server.GameObjects.Components.Power;
 using Content.Server.GameObjects.EntitySystems;
 using Content.Shared.Research;
 using Robust.Shared.GameObjects;
@@ -16,24 +17,23 @@ namespace Content.Server.GameObjects.Components.Research
 
         public override string Name => "ResearchServer";
 
-        [ViewVariables(VVAccess.ReadWrite)]
+        [ViewVariables(VVAccess.ReadWrite)] public string ServerName => _serverName;
-        public string ServerName => _serverName;
 
         private string _serverName = "RDSERVER";
         private float _timer = 0f;
         public TechnologyDatabaseComponent Database { get; private set; }
 
-        [ViewVariables(VVAccess.ReadWrite)]
+        [ViewVariables(VVAccess.ReadWrite)] private int _points = 0;
-        private int _points = 0;
 
-        [ViewVariables(VVAccess.ReadOnly)]
+        [ViewVariables(VVAccess.ReadOnly)] public int Id { get; private set; }
-        public int Id { get; private set; }
 
         // You could optimize research by keeping a list of unlocked recipes too.
         [ViewVariables(VVAccess.ReadOnly)]
         public IReadOnlyList<TechnologyPrototype> UnlockedTechnologies => Database.Technologies;
+
         [ViewVariables(VVAccess.ReadOnly)]
         public List<ResearchPointSourceComponent> PointSources { get; } = new List<ResearchPointSourceComponent>();
+
         [ViewVariables(VVAccess.ReadOnly)]
         public List<ResearchClientComponent> Clients { get; } = new List<ResearchClientComponent>();
 
@@ -51,21 +51,31 @@ namespace Content.Server.GameObjects.Components.Research
             {
                 var points = 0;
 
+                if (CanRun)
+                {
                     foreach (var source in PointSources)
                     {
-                    if (source.Active) points += source.PointsPerSecond;
+                        if (source.CanProduce) points += source.PointsPerSecond;
+                    }
                 }
 
                 return points;
             }
         }
 
+        /// <remarks>If no <see cref="PowerDeviceComponent"/> is found, it's assumed power is not required.</remarks>
+        [ViewVariables]
+        public bool CanRun => _powerDevice is null || _powerDevice.Powered;
+
+        private PowerDeviceComponent _powerDevice;
+
         public override void Initialize()
         {
             base.Initialize();
             Id = ServerCount++;
             IoCManager.Resolve<IEntitySystemManager>()?.GetEntitySystem<ResearchSystem>()?.RegisterServer(this);
             Database = Owner.GetComponent<TechnologyDatabaseComponent>();
+            Owner.TryGetComponent(out _powerDevice);
         }
 
         /// <inheritdoc />
@@ -84,7 +94,8 @@ namespace Content.Server.GameObjects.Components.Research
 
         public bool CanUnlockTechnology(TechnologyPrototype technology)
         {
-            if (!Database.CanUnlockTechnology(technology) || _points < technology.RequiredPoints || Database.IsTechnologyUnlocked(technology)) return false;
+            if (!Database.CanUnlockTechnology(technology) || _points < technology.RequiredPoints ||
+                Database.IsTechnologyUnlocked(technology)) return false;
             return true;
         }
 
@@ -98,7 +109,7 @@ namespace Content.Server.GameObjects.Components.Research
         {
             if (!CanUnlockTechnology(technology)) return false;
             var result = Database.UnlockTechnology(technology);
-            if(result)
+            if (result)
                 _points -= technology.RequiredPoints;
             return result;
         }
@@ -151,6 +162,7 @@ namespace Content.Server.GameObjects.Components.Research
 
         public void Update(float frameTime)
         {
+            if (!CanRun) return;
             _timer += frameTime;
             if (_timer < 1f) return;
             _timer = 0f;