Re-organize all projects (#4166)

Content.Server/Disposal/Tube/Components/DisposalTransitComponent.cs

@@ -0,0 +1,38 @@
+using System;
+using Content.Server.Disposal.Unit.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Maths;
+
+namespace Content.Server.Disposal.Tube.Components
+{
+    // TODO: Different types of tubes eject in random direction with no exit point
+    [RegisterComponent]
+    [ComponentReference(typeof(IDisposalTubeComponent))]
+    public class DisposalTransitComponent : DisposalTubeComponent
+    {
+        public override string Name => "DisposalTransit";
+
+        protected override Direction[] ConnectableDirections()
+        {
+            var rotation = Owner.Transform.LocalRotation;
+            var opposite = new Angle(rotation.Theta + Math.PI);
+
+            return new[] {rotation.GetDir(), opposite.GetDir()};
+        }
+
+        public override Direction NextDirection(DisposalHolderComponent holder)
+        {
+            var directions = ConnectableDirections();
+            var previousTube = holder.PreviousTube;
+            var forward = directions[0];
+
+            if (previousTube == null)
+            {
+                return forward;
+            }
+
+            var backward = directions[1];
+            return DirectionTo(previousTube) == forward ? backward : forward;
+        }
+    }
+}