Changed LangVersion back to avoid export issues and removed experimental language features.

WrplatGodot.csproj

@@ -2,7 +2,6 @@
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
     <TargetFramework Condition=" '$(GodotTargetPlatform)' == 'android' ">net9.0</TargetFramework>
-    <LangVersion>preview</LangVersion>
     <EnableDynamicLoading>true</EnableDynamicLoading>
   </PropertyGroup>
 </Project>

src/components/PlayerPhysicsController.cs

@@ -11,9 +11,9 @@ public partial class PlayerPhysicsController : CharacterBody2D {
     public float WalkSpeed { get; set; } = 3f;
 
     [Export]
-    public float JumpHeight { get; set { field = value; RecalculateLv(); } } = 5.5f;
+    public float JumpHeight { get; set; } = 5.5f;
 
-    private float PeakTime { get; set { field = value; RecalculateLv(); } } = 0.1f;
+    private float PeakTime { get; set; } = 0.1f;
 
     [Export]
     public Label DebugTextLabel { get; set; }
@@ -22,7 +22,7 @@ public partial class PlayerPhysicsController : CharacterBody2D {
     public AnimatedSprite2D Sprite { get; set; }
 
     [Export]
-    public float Gravity { get; set { field = value; RecalculateLv();  } } = 30f;
+    public float Gravity { get; set; } = 30f;
 
     [Export]
     public float UnitToPx { get; set; } = 32;