manager to save/load height map to/from a file added

Assets/Scripts/Managers/SaveManager.cs

@@ -0,0 +1,47 @@
+using UnityEngine;
+using System.IO;
+using System.Runtime.Serialization.Formatters.Binary;
+using TerrainGeneration;
+using UnityEditor;
+
+namespace Managers
+{
+    public class SaveManager : MonoBehaviour
+    {
+        private readonly string fileName = "height_map.dat";
+
+        [SerializeField]
+        private TerrainGenerationManager terrainManager;
+
+        public void SaveFloatArray()
+        {
+            var arrayToSave = terrainManager.HeightMap;
+            string filePath = EditorUtility.SaveFilePanel("Save Height Map as...", "", fileName, "dat");
+
+            if (string.IsNullOrEmpty(filePath))
+                return;
+
+            BinaryFormatter formatter = new();
+            using (FileStream stream = new(filePath, FileMode.Create))
+            {
+                formatter.Serialize(stream, arrayToSave);
+            }
+        }
+
+        public void LoadFloatArray()
+        {
+            string filePath = EditorUtility.OpenFilePanel("Load Height Map from...", "", "dat");
+
+            if (!string.IsNullOrEmpty(filePath))
+            {
+                BinaryFormatter formatter = new();
+                using (FileStream stream = new(filePath, FileMode.Open))
+                {
+                    //TODO Also need to set the size of the map accordingly. Now it can cause errors if loaded map is smaller/bigger than the size that is set.
+                    terrainManager.isLoaded = true;
+                    terrainManager.HeightMap = (float[,])formatter.Deserialize(stream);
+                }
+            }
+        }
+    }
+}

Assets/Scripts/Managers/UIManager.cs

@@ -1,28 +1,33 @@
-using SharedDefs;
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using TerrainGeneration;
 using UnityEngine;
 using UnityEngine.UIElements;
 
-public class UIManager : MonoBehaviour
+namespace Managers
 {
-    [SerializeField]
-    private UIDocument document;
-    [SerializeField]
-    private TerrainGenerationManager terrainGenerator;
+    public class UIManager : MonoBehaviour
+    {
+        [SerializeField]
+        private UIDocument document;
+        [SerializeField]
+        private TerrainGenerationManager terrainGenerator;
+        [SerializeField]
+        private SaveManager saveManager;
 
-    private VisualElement root;
+        private VisualElement root;
 
-    void OnEnable()
-    {
-        root = document.rootVisualElement;
-        root.Q<Button>("Generate").clicked += () => terrainGenerator.DisplayResult();
-    }
+        void OnEnable()
+        {
+            root = document.rootVisualElement;
+            root.Q<Button>("Generate").clicked += () => terrainGenerator.DisplayResult();
+            root.Q<Button>("Save").clicked += () => saveManager.SaveFloatArray();
+            root.Q<Button>("Load").clicked += () => saveManager.LoadFloatArray();
+        }
 
-    void OnDisable()
-    {
-        root.Q<Button>("Generate").clicked -= () => terrainGenerator.DisplayResult();
+        void OnDisable()
+        {
+            root.Q<Button>("Generate").clicked -= () => terrainGenerator.DisplayResult();
+            root.Q<Button>("Save").clicked -= () => saveManager.SaveFloatArray();
+            root.Q<Button>("Load").clicked -= () => saveManager.LoadFloatArray();
+        }
     }
 }