Add utility AI (#806)

Co-authored-by: Pieter-Jan Briers <pieterjan.briers@gmail.com>
Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>
Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Server/AI/Utility/Considerations/Containers/TargetAccessibleCon.cs

@@ -0,0 +1,39 @@
+using Content.Server.AI.Utility.Curves;
+using Content.Server.AI.WorldState;
+using Content.Server.AI.WorldState.States;
+using Content.Server.GameObjects;
+using Content.Server.GameObjects.Components;
+using Robust.Shared.Containers;
+
+namespace Content.Server.AI.Utility.Considerations.Containers
+{
+    /// <summary>
+    /// Returns 1.0f if the item is freely accessible (e.g. in storage we can open, on ground, etc.)
+    /// </summary>
+    public sealed class TargetAccessibleCon : Consideration
+    {
+        public TargetAccessibleCon(IResponseCurve curve) : base(curve) {}
+
+        public override float GetScore(Blackboard context)
+        {
+            var target = context.GetState<TargetEntityState>().GetValue();
+            if (target == null)
+            {
+                return 0.0f;
+            }
+
+            if (ContainerHelpers.TryGetContainer(target, out var container))
+            {
+                if (container.Owner.TryGetComponent(out EntityStorageComponent storageComponent))
+                {
+                    if (storageComponent.IsWeldedShut && !storageComponent.Open)
+                    {
+                        return 0.0f;
+                    }
+                }
+            }
+
+            return 1.0f;
+        }
+    }
+}