Game saving and loading

Resources/Maps/MapsDatabase.tres

@@ -1,4 +1,4 @@
-[gd_resource type="Resource" script_class="MapsDatabase" load_steps=7 format=3 uid="uid://blf2ii0j3fqil"]
+[gd_resource type="Resource" script_class="MapsDatabase" load_steps=8 format=3 uid="uid://blf2ii0j3fqil"]
 
 [ext_resource type="Resource" uid="uid://b4u3cs6ietmow" path="res://Resources/Maps/Tutorial.tres" id="1_jm16h"]
 [ext_resource type="Script" uid="uid://denacldr388km" path="res://Scripts/Resources/MapsDatabase.cs" id="1_p3u82"]
@@ -6,14 +6,9 @@
 [ext_resource type="Resource" uid="uid://37h0tjja4sns" path="res://Resources/Maps/RebelBase.tres" id="3_b8vvn"]
 [ext_resource type="Resource" uid="uid://mx860r8t37g1" path="res://Resources/Maps/Level2.tres" id="4_axa7o"]
 [ext_resource type="Resource" uid="uid://b0xtpdb4by8mm" path="res://Resources/Maps/Level3.tres" id="5_8yujj"]
+[ext_resource type="Resource" uid="uid://b6per1p85bqpn" path="res://Resources/Maps/Level4.tres" id="6_2lffu"]
 
 [resource]
 script = ExtResource("1_p3u82")
-Maps = Dictionary[int, Object]({
-0: ExtResource("1_jm16h"),
-1: ExtResource("2_2lffu"),
-2: ExtResource("3_b8vvn"),
-3: ExtResource("4_axa7o"),
-4: ExtResource("5_8yujj")
-})
+Maps = Array[Object]([ExtResource("1_jm16h"), ExtResource("2_2lffu"), ExtResource("3_b8vvn"), ExtResource("4_axa7o"), ExtResource("5_8yujj"), ExtResource("6_2lffu")])
 metadata/_custom_type_script = "uid://denacldr388km"

Resources/Maps/Tutorial.tres

@@ -11,6 +11,7 @@ metadata/_custom_type_script = "uid://mja0rk7n2kln"
 
 [resource]
 script = ExtResource("1_5stb7")
+LevelId = 0
 MapName = &"Tutorial"
 MapDescription = &"A VR simulation for training"
 ScenePath = &"uid://bpnahwxmjgb6t"

Scenes/MainMenu.tscn

@@ -20,9 +20,9 @@
 [ext_resource type="Resource" uid="uid://byo74ews118nl" path="res://Resources/Music/No_Reason.tres" id="13_fh7cp"]
 [ext_resource type="FontFile" uid="uid://cyk27h5aox1n7" path="res://fonts/sector_034.ttf" id="14_yxkem"]
 
-[sub_resource type="AtlasTexture" id="AtlasTexture_hy5wk"]
+[sub_resource type="AtlasTexture" id="AtlasTexture_ogjye"]
 atlas = ExtResource("9_riqfo")
-region = Rect2(288, 0, 32, 16)
+region = Rect2(64, 0, 32, 16)
 
 [sub_resource type="Theme" id="Theme_c7h4d"]
 
@@ -67,7 +67,7 @@ offset_top = 40.995
 offset_right = 186.42
 offset_bottom = 56.995
 rotation = 3.14159
-texture = SubResource("AtlasTexture_hy5wk")
+texture = SubResource("AtlasTexture_ogjye")
 
 [node name="MarginContainer" type="MarginContainer" parent="."]
 anchors_preset = 15
@@ -216,7 +216,7 @@ grow_vertical = 2
 theme_override_styles/panel = ExtResource("7_rrcx7")
 
 [connection signal="pressed" from="MarginContainer/GridContainer/GameButtons/StartButton" to="." method="_on_start_button_pressed"]
-[connection signal="pressed" from="MarginContainer/GridContainer/GameButtons/ContinueButton" to="." method="_on_debug_button_pressed"]
+[connection signal="pressed" from="MarginContainer/GridContainer/GameButtons/ContinueButton" to="." method="OnContinuePressed"]
 [connection signal="pressed" from="MarginContainer/GridContainer/GameButtons/DebugButton" to="." method="_on_debug_button_pressed"]
 [connection signal="pressed" from="MarginContainer/GridContainer/GameButtons/ExitButton" to="." method="_on_exit_button_pressed"]
 [connection signal="pressed" from="MarginContainer/GridContainer/Options/OptionsButton" to="." method="OnOptionsButtonPressed"]

Scenes/Maps/RebelBase.tscn

@@ -2,7 +2,6 @@
 
 [ext_resource type="Script" uid="uid://doxmbokehw8ci" path="res://Scripts/GameManager.cs" id="1_6sq7s"]
 [ext_resource type="PackedScene" uid="uid://c4pr2707hbeph" path="res://Scenes/Actors/fsm_player.tscn" id="2_cicvv"]
-[ext_resource type="Script" uid="uid://epnwjptvks3t" path="res://Scripts/Resources/LootItem.cs" id="3_8anae"]
 [ext_resource type="Script" uid="uid://mja0rk7n2kln" path="res://Scripts/Resources/MapStartDataResource.cs" id="4_tgwif"]
 [ext_resource type="TileSet" uid="uid://6k28roiljylj" path="res://Tilesets/factory_tileset.tres" id="5_vmlpc"]
 [ext_resource type="Script" uid="uid://krean0uywtms" path="res://Scripts/TilemapAvoidance.cs" id="6_sv42c"]
@@ -17,6 +16,7 @@
 [ext_resource type="PackedScene" uid="uid://cqrkisw6jg24w" path="res://Scenes/Props/MainFrame1.tscn" id="15_8rpjd"]
 [ext_resource type="PackedScene" uid="uid://doqmmuuuprl3s" path="res://Scenes/Interactable/Computer.tscn" id="16_r67ss"]
 [ext_resource type="PackedScene" uid="uid://bc64lr3vlwchq" path="res://Scenes/Door_Vertical.tscn" id="17_8n6yg"]
+[ext_resource type="Resource" uid="uid://mx860r8t37g1" path="res://Resources/Maps/Level2.tres" id="18_8anae"]
 [ext_resource type="PackedScene" uid="uid://dx1urm7nttkqk" path="res://Scenes/Actors/level_teleporter.tscn" id="18_tbppe"]
 [ext_resource type="PackedScene" uid="uid://crph24e6e0v0q" path="res://Scenes/Interactable/Control_Pad.tscn" id="19_nxss7"]
 [ext_resource type="PackedScene" uid="uid://cyy5i38sf7fid" path="res://Scenes/Props/Locker.tscn" id="20_jrxvj"]
@@ -31,7 +31,7 @@
 [sub_resource type="Resource" id="Resource_53p3c"]
 script = ExtResource("4_tgwif")
 EggIndex = 0
-StartingEquipment = Array[ExtResource("3_8anae")]([null])
+StartingEquipment = [null]
 
 [sub_resource type="Resource" id="Resource_2ugqu"]
 script = ExtResource("11_esmuk")
@@ -180,6 +180,7 @@ position = Vector2(292, 408)
 [node name="LevelTeleporter" parent="Tilemaps/Actors" instance=ExtResource("18_tbppe")]
 position = Vector2(112, 304)
 LevelPath = "res://Scenes/Maps/Level2.tscn"
+Map = ExtResource("18_8anae")
 SaveInventory = true
 
 [node name="ControlPad" parent="Tilemaps" node_paths=PackedStringArray("Targets") instance=ExtResource("19_nxss7")]

Scenes/Maps/Tutorial.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=51 format=4 uid="uid://bpnahwxmjgb6t"]
+[gd_scene load_steps=52 format=4 uid="uid://bpnahwxmjgb6t"]
 
 [ext_resource type="Script" uid="uid://doxmbokehw8ci" path="res://Scripts/GameManager.cs" id="1_qxyfr"]
 [ext_resource type="Resource" uid="uid://b4u3cs6ietmow" path="res://Resources/Maps/Tutorial.tres" id="2_0xhda"]
@@ -33,6 +33,7 @@
 [ext_resource type="FontFile" uid="uid://cc3bdt3rt8a1o" path="res://fonts/Silver.ttf" id="25_covcf"]
 [ext_resource type="PackedScene" uid="uid://dx1urm7nttkqk" path="res://Scenes/Actors/level_teleporter.tscn" id="25_mfnhx"]
 [ext_resource type="LabelSettings" uid="uid://buk3e7bbwmnv1" path="res://Resources/Styles/Hud_Text_Style.tres" id="26_r1dm5"]
+[ext_resource type="Resource" uid="uid://xtg062tcon1j" path="res://Resources/Maps/Level1.tres" id="28_xlcit"]
 [ext_resource type="PackedScene" uid="uid://cnhgvn2salyxl" path="res://Scenes/Items/Icicle_Repeater.tscn" id="32_covcf"]
 [ext_resource type="PackedScene" uid="uid://cmr6fclttrpkb" path="res://Scenes/Items/Ammo1.tscn" id="33_0xhda"]
 
@@ -325,6 +326,7 @@ vertical_alignment = 1
 [node name="LevelTeleporter" parent="Parallax2D/Tilemaps" instance=ExtResource("25_mfnhx")]
 position = Vector2(999, -40)
 LevelPath = "res://Scenes/test.tscn"
+Map = ExtResource("28_xlcit")
 IsEnabled = true
 
 [node name="Label" type="Label" parent="Parallax2D/Tilemaps"]
@@ -342,6 +344,7 @@ horizontal_alignment = 1
 [node name="LevelTeleporter2" parent="Parallax2D/Tilemaps" instance=ExtResource("25_mfnhx")]
 position = Vector2(135, 423)
 LevelPath = "res://Scenes/test.tscn"
+Map = ExtResource("28_xlcit")
 IsEnabled = true
 
 [node name="IcicleRepeater" parent="Parallax2D/Tilemaps" instance=ExtResource("32_covcf")]

Scripts/GlobalState.cs

@@ -1,8 +1,10 @@
 using System;
+using System.Linq;
 using System.Threading.Tasks;
 using Cirno.Scripts.Resources;
 using Cirno.Scripts.Utils;
 using Godot;
+using Godot.Collections;
 using GTweens.Builders;
 using GTweensGodot.Extensions;
 
@@ -201,6 +203,8 @@ public partial class GlobalState : Node
         _fader.TweenModulateAlpha(0, 1f).PlayUnpausable();
     }
 
+    private readonly string SaveNameFile = "user://savegame.save";
+    
     public void SaveGame()
     {
         var items = InventoryManager.Instance.Save();
@@ -213,16 +217,52 @@ public partial class GlobalState : Node
             { "Level", SessionSettings.LevelNumber }
         };
 
-        var saveFile = FileAccess.Open("user://savegame.save", FileAccess.ModeFlags.Write);
+        var saveFile = FileAccess.Open(SaveNameFile, FileAccess.ModeFlags.Write);
 
         var jsonString = Json.Stringify(serializedSavedata);
 
         saveFile.StoreLine(jsonString);
+        
+        GD.Print("Saved data successfully");
     }
     
-    public void LoadGame()
+    public bool LoadGame()
     {
+        if (!FileAccess.FileExists(SaveNameFile))
+        {
+            return false; // Error! We don't have a save to load.
+        }
+        using var saveFile = FileAccess.Open(SaveNameFile, FileAccess.ModeFlags.Read);
 
+        var jsonString = saveFile.GetLine();
+        var json = new Json();
+
+        var parseResult = json.Parse(jsonString);
+        if (parseResult != Error.Ok)
+        {
+            GD.Print($"JSON Parse Error: {json.GetErrorMessage()} in {jsonString} at line {json.GetErrorLine()}");
+            return false;
+        }
+        
+        var deserializedSaveData = new Dictionary<string, Variant>((Dictionary)json.Data);
+
+        Dictionary<string, int> items = (Dictionary<string, int>)deserializedSaveData["Items"];
+
+        int levelNumber = (int)deserializedSaveData["Level"];
+
+        var levelData = _mapsDatabase.Maps.FirstOrDefault(x => x.LevelId == levelNumber);
+        if (levelData is null)
+        {
+            return false;
+        }
+        
+        this.SessionSettings.NewSession();
+        SessionSettings.LevelNumber = levelNumber;
+        SessionSettings.Items = items;
+        
+        this.GotoScene(levelData);
+        
+        return true;
     }
     
     public void ResizeCursor(float scale)

Scripts/MainMenu.cs

@@ -50,12 +50,20 @@ public partial class MainMenu : CanvasLayer
 
 	private void _on_start_button_pressed()
 	{
-		if (GameScene != null)
-		{
+		if (GameScene == null) return;
 		GlobalState.Session.NewSession();
+		GlobalState.Session.AllowSaving = true;
 		GlobalState.Instance.GotoScene(GameScene);
 		//GetTree().ChangeSceneToFile(GameScene);
 	}
+
+	private void OnContinuePressed()
+	{
+		if (GameScene == null) return;
+		if (GlobalState.Instance.LoadGame())
+		{
+			GlobalState.Session.AllowSaving = true;
+		}
 	}
 
 	private void _on_debug_button_pressed()