♻️Code cleanup

prefabs/fight/fight_scene_switcher.tscn

@@ -2,8 +2,8 @@
 
 [ext_resource type="Script" uid="uid://cql8mt5jsmcdl" path="res://scripts/CSharp/Common/Fight/FightSceneSwitcher.cs" id="1_5dt1r"]
 
-[node name="FightSceneSwitcher" type="Node" node_paths=PackedStringArray("sceneRoot")]
+[node name="FightSceneSwitcher" type="Node" node_paths=PackedStringArray("_sceneRoot")]
 script = ExtResource("1_5dt1r")
-sceneRoot = NodePath("")
-fightRoomScenePath = "res://scenes/Babushka_scene_fight_world_room.tscn"
-fightHappeningScene = "res://scenes/Babushka_scene_fight_happening.tscn"
+_sceneRoot = NodePath("")
+_fightRoomScenePath = "res://scenes/Babushka_scene_fight_world_room.tscn"
+_fightHappeningScene = "res://scenes/Babushka_scene_fight_happening.tscn"

scenes/Babushka_scene_fight_happening.tscn

@@ -59,8 +59,8 @@ visible = false
 script = ExtResource("10_qqd8u")
 _fightSceneSwitcher = NodePath("FightSceneSwitcher")
 
-[node name="FightSceneSwitcher" parent="SwitchSceneOnFightEnd" node_paths=PackedStringArray("sceneRoot") instance=ExtResource("2_phrlx")]
-sceneRoot = NodePath("../..")
+[node name="FightSceneSwitcher" parent="SwitchSceneOnFightEnd" node_paths=PackedStringArray("_sceneRoot") instance=ExtResource("2_phrlx")]
+_sceneRoot = NodePath("../..")
 
 [node name="ActionSelect" type="CanvasLayer" parent="." node_paths=PackedStringArray("_attackActionButton", "_summonActionButton", "_talkActionButton", "_fleeActionButton")]
 visible = false

scenes/Babushka_scene_fight_world_room.tscn

@@ -2148,8 +2148,9 @@ position = Vector2(1560, 422)
 [node name="Spawn4" type="Node2D" parent="YSorted/EnemyGroupSpawns"]
 position = Vector2(-1127, 671)
 
-[node name="FightSceneSwitcher" parent="." instance=ExtResource("40_elhbh")]
+[node name="FightSceneSwitcher" parent="." node_paths=PackedStringArray("_sceneRoot") instance=ExtResource("40_elhbh")]
 unique_name_in_owner = true
+_sceneRoot = NodePath("..")
 
 [node name="FightSceneSetup" type="Node" parent="." node_paths=PackedStringArray("_enemyGroupSpawns", "_fightSceneSwitcher")]
 script = ExtResource("40_cvg1r")

scripts/CSharp/Common/Fight/FightSceneSwitcher.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.Threading.Tasks;
 using Babushka.scripts.CSharp.Common.SceneManagement;
 using Godot;
 
@@ -7,9 +8,9 @@ namespace Babushka.scripts.CSharp.Common.Fight;
 
 public partial class FightSceneSwitcher : Node
 {
-    [Export] private Node sceneRoot;
-    [Export] private string fightRoomScenePath;
-    [Export] private string fightHappeningScene;
+    [Export] private Node _sceneRoot = null!;
+    [Export] private string _fightRoomScenePath = null!;
+    [Export] private string _fightHappeningScene = null!;
 
     private void LoadNext()
     {
@@ -17,12 +18,12 @@ public partial class FightSceneSwitcher : Node
         Debug.Assert(nextRoom != null, "nextRoom!=null");
         var nextFightHappening = FightWorld.Instance.fightHappeningData;
         SceneTransitionThreaded.Instance.ChangeSceneToFile(nextFightHappening != null
-            ? fightHappeningScene
-            : fightRoomScenePath);
-        UnloadAfterDelay();
+            ? _fightHappeningScene
+            : _fightRoomScenePath);
+        _ = UnloadAfterDelay();
     }
 
-    private async void UnloadAfterDelay()
+    private async Task UnloadAfterDelay()
     {
         await ToSignal(GetTree().CreateTimer(1.0f), "timeout"); // 1.0f seconds
         //sceneRoot.QueueFree();

scripts/CSharp/Common/Fight/FighterStack.cs

@@ -1,5 +1,5 @@
-using System.Collections.Generic;
-using Godot.NativeInterop;
+using System;
+using System.Diagnostics;
 
 namespace Babushka.scripts.CSharp.Common.Fight;
 
@@ -7,37 +7,39 @@ public class FighterStack
 {
     private class Node
     {
-        public Node next;
-        public FightWorld.Fighter fighter;
+        public required Node next;
+        public required FightWorld.Fighter fighter;
     }
 
-    private Node? currentNode;
+    private Node? _currentNode;
 
-    public FightWorld.Fighter Current => currentNode.fighter;
+    public FightWorld.Fighter Current => _currentNode?.fighter ?? throw new InvalidOperationException("No current fighter");
 
     public void Next()
     {
-        currentNode = currentNode.next;
+        Debug.Assert(_currentNode != null, "currentNode!=null");
+        _currentNode = _currentNode.next;
     }
 
     public FightWorld.Fighter PeekNext()
     {
-        return currentNode.next.fighter;
+        Debug.Assert(_currentNode != null, "currentNode!=null");
+        return _currentNode.next.fighter;
     }
 
     public void AddAsLast(FightWorld.Fighter value)
     {
         // if first node
-        if (currentNode == null)
+        if (_currentNode == null)
         {
-            currentNode = new Node { fighter = value };
-            currentNode.next = currentNode;
+            _currentNode = new Node { fighter = value, next = null! };
+            _currentNode.next = _currentNode;
             return;
         }
 
-        var newNode = new Node { fighter = value, next = currentNode };
-        var node = currentNode;
-        while (node.next != currentNode)
+        var newNode = new Node { fighter = value, next = _currentNode };
+        var node = _currentNode;
+        while (node.next != _currentNode)
         {
             node = node.next;
         }
@@ -48,47 +50,47 @@ public class FighterStack
     public void AddAsNext(FightWorld.Fighter value)
     {
         // if first node
-        if (currentNode == null)
+        if (_currentNode == null)
         {
             AddAsLast(value);
             return;
         }
 
-        var newNode = new Node { fighter = value, next = currentNode.next };
-        currentNode.next = newNode;
+        var newNode = new Node { fighter = value, next = _currentNode.next };
+        _currentNode.next = newNode;
     }
 
     public bool Remove(FightWorld.Fighter value)
     {
-        if (currentNode == null) return false;
+        if (_currentNode == null) return false;
 
         // if only one node
-        if (currentNode.next == currentNode)
+        if (_currentNode.next == _currentNode)
         {
-            if (currentNode.fighter == value)
+            if (_currentNode.fighter == value)
             {
-                currentNode = null;
+                _currentNode = null;
                 return true;
             }
 
             return false;
         }
 
-        var node = currentNode;
+        var node = _currentNode;
         do
         {
             // next is the fighter to remove
             if (node.next.fighter == value)
             {
                 // if removing current, keep current
-                // it will be implicitly deleted on the next Next() call
+                // it will be implicitly deleted by loss of reference on the next Next() call
                 
                 node.next = node.next.next;
                 return true;
             }
 
             node = node.next;
-        } while (node != currentNode);
+        } while (node != _currentNode);
 
         return false;
     }