Added Crop, Farming&Harvesting functionality (no graphics yet!)

Assets/Scripts/Crop.cs

@@ -0,0 +1,44 @@
+namespace DefaultNamespace
+{
+    public class Crop
+    {
+        private const int DaysUntilFinished = 4;
+
+        private bool _fullyGrown;
+        public bool FullyGrown => _fullyGrown;
+        
+        private bool _markedForDeletion;
+        public bool MarkedForDeletion => _markedForDeletion;
+
+        private int _daysGrown;
+
+        public Crop()
+        {
+            _fullyGrown = false;
+            _markedForDeletion = false;
+            _daysGrown = 0;
+        }
+
+        private void Grow()
+        {
+            _daysGrown++;
+        }
+
+        public void DayLightStep(bool hydrated)
+        {
+            if (_daysGrown >= DaysUntilFinished)
+            {
+                _fullyGrown = true;
+            }
+
+            if (!hydrated)
+            {
+                _markedForDeletion = true;
+            }
+            else if (!_fullyGrown)
+            {
+                Grow();
+            }
+        }
+    }
+}