Added GameState controller

Assets/Scenes/SampleScene.unity

@@ -586,7 +586,7 @@ RectTransform:
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 0.005346669, y: 0.005346669, z: 0.005346669}
-  m_ConstrainProportionsScale: 0
+  m_ConstrainProportionsScale: 1
   m_Children:
   - {fileID: 1944344878}
   - {fileID: 2112507919}
@@ -719,8 +719,8 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0}
   m_AnchorMax: {x: 0.5, y: 0}
-  m_AnchoredPosition: {x: 0, y: 0}
-  m_SizeDelta: {x: 1000, y: 100}
+  m_AnchoredPosition: {x: 0, y: 75}
+  m_SizeDelta: {x: 3840, y: 150}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!61 &2112507920
 BoxCollider2D:
@@ -765,7 +765,7 @@ BoxCollider2D:
     adaptiveTiling: 0
   m_AutoTiling: 0
   serializedVersion: 2
-  m_Size: {x: 1000, y: 100}
+  m_Size: {x: 3840, y: 150}
   m_EdgeRadius: 0
 --- !u!114 &2112507921
 MonoBehaviour:
@@ -780,7 +780,7 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   m_Material: {fileID: 0}
-  m_Color: {r: 1, g: 1, b: 1, a: 1}
+  m_Color: {r: 0, g: 0, b: 0, a: 1}
   m_RaycastTarget: 1
   m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
   m_Maskable: 1

Assets/Scripts/GameStateController.cs

@@ -0,0 +1,41 @@
+using PashaBibko.Pacore.Attributes;
+using UnityEngine;
+
+namespace Fruitomation
+{
+    public enum GameState
+    {
+        Simulation,
+        Building,
+        UpgradeMenu,
+        Paused,
+        None
+    }
+
+    [CreateInstanceOnStart] public class GameStateController : MonoBehaviour
+    {
+        private static GameStateController Instance;
+
+        private GameState InternalState = GameState.None;
+        public static GameState State
+        {
+            get => Instance.InternalState;
+            set
+            {
+                Debug.Log($"Changing state from [{Instance.InternalState}] to [{value}]");
+                Instance.InternalState = value;
+            }
+        }
+
+        private void Awake()
+        {
+            if (Instance is not null)
+            {
+                Debug.LogError($"Cannot have multiple instances of [GameStateController]");
+                return;
+            }
+
+            Instance = this;
+        }
+    }
+}

Assets/Scripts/GameStateController.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e7e7ce52c18c2de49bf808434eae1de7
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: