Power System (Complete) (#25)

* Power Commit 1

* Commit 2

* Powernet Part2, All components essentially complete

* Commit 4

* Commit 5

* Commit 6

Creates prototypes

* Finishes powernet code alpha

Adds prototypes and logic for powernet updating and regeneration

* Adds onremove functionality to all components

Without these bits of logic nothing makes any sense!

* And this

* Fixes a lot of bugs

* Fix powernet thinking devices are duplicates

* Fix bug and add comments

* woop woop thats the sound of the police

Content.Server/GameObjects/EntitySystems/PowerSystem.cs

@@ -0,0 +1,47 @@
+using Content.Server.GameObjects.Components.Power;
+using SS14.Shared.GameObjects.System;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Content.Shared.GameObjects.EntitySystems
+{
+    public class PowerSystem : EntitySystem
+    {
+        public List<Powernet> Powernets = new List<Powernet>();
+
+        public override void Update(float frametime)
+        {
+            for (int i = 0; i < Powernets.Count; i++)
+            {
+                var powernet = Powernets[i];
+                if (powernet.Dirty)
+                {
+                    //Tell all the wires of this net to be prepared to create/join new powernets
+                    foreach (var wire in powernet.Wirelist)
+                    {
+                        wire.Regenerating = true;
+                    }
+
+                    foreach (var wire in powernet.Wirelist)
+                    {
+                        //Only a few wires should pass this if check since each will create and take all the others into its powernet
+                        if (wire.Regenerating)
+                            wire.SpreadPowernet();
+                    }
+
+                    //At this point all wires will have found/joined new powernet, all capable nodes will have joined them as well and removed themselves from nodelist
+                    powernet.DirtyKill();
+                    i--;
+                }
+            }
+
+            foreach(var powernet in Powernets)
+            {
+                powernet.Update(frametime);
+            }
+        }
+    }
+}