limited field creation to specified shape

scripts/CSharp/Common/Farming/FarmingControls2D.cs

@@ -66,7 +66,7 @@ public partial class FarmingControls2D : Node2D
 
     public override void _Input(InputEvent @event)
     {
-        Vector2 mousePosition = GetViewport().GetMousePosition();
+        Vector2 mousePosition = _camera.GetGlobalMousePosition();
         
         Vector2I adjustedPosition = new Vector2I(AdjustValue(mousePosition.X), AdjustValue(mousePosition.Y));
 
@@ -94,6 +94,14 @@ public partial class FarmingControls2D : Node2D
     {
         if(FieldParent == null || _fieldPrefab == null) 
             return;
+
+        bool fieldAllowed = FieldParent.FieldAllowed();
+        GD.Print($"Field allowed at {fieldPosition}: {fieldAllowed}");
+        // only try to instantiate a field if you're in the allowed area
+        if (!fieldAllowed)
+            return;
+        
+            
         
         // only instantiate a field if there isn't one already.
         if(FieldParent.Get(fieldPosition) == null)

scripts/CSharp/Common/Farming/FieldService2D.cs

@@ -7,7 +7,26 @@ namespace Babushka.scripts.CSharp.Common.Farming;
 public partial class FieldService2D : Node2D
 {
     [Export] private Dictionary<Vector2I, FieldBehaviour2D> fields = new Dictionary<Vector2I, FieldBehaviour2D>();
+    
+    private bool _fieldAllowed = false;
 
+    //Validate
+
+    public void MouseEnteredAllowedArea()
+    {
+        _fieldAllowed = true;
+    }
+
+    public void MouseExitedAllowedArea()
+    {
+        _fieldAllowed = false;
+    }
+    
+    public bool FieldAllowed()
+    {
+        return _fieldAllowed;
+    }
+    
     //Create
     public bool TryAddEntry(Vector2I key, FieldBehaviour2D field)
     {