improved weapon system and cleaner weapon setup

systems/head/HeadSystem.cs

@@ -184,6 +184,15 @@ public partial class HeadSystem : Node3D
         _camera.Fov = Mathf.Lerp(_camera.Fov, targetFov, (float) delta * FovChangeSpeed);
     }
 
+    public void HideWeapon()
+    {
+        _fpRig.Visible = false;   
+    }
+    public void ShowWeapon()
+    {
+        _fpRig.Visible = true;
+    }
+
     public float ComputeCameraInclineFactor(Vector3 direction)
     {
         var forward = GetForwardHorizontalVector().Normalized();

systems/weapon/WeaponSystem.cs

@@ -28,6 +28,7 @@ public partial class WeaponSystem : RigidBody3D
     private TweenQueueSystem _tweenQueueSystem;
     
     private Transform3D _startTransform;
+    private Transform3D _startMeshTransform;
 
     private Vector3 _throwDirection;
     public Vector3 PlantLocation { get; set; }
@@ -36,7 +37,6 @@ public partial class WeaponSystem : RigidBody3D
     public MeshInstance3D WeaponLocationIndicator { get; set; }
     public StandardMaterial3D WeaponLocationIndicatorMaterial { get; set; }
     public MeshInstance3D WeaponMesh { get; set; }
-    public StandardMaterial3D WeaponMaterial { get; set; }
 
     public void Init(Node3D head, Camera3D camera)
     {
@@ -53,7 +53,7 @@ public partial class WeaponSystem : RigidBody3D
         WeaponLocationIndicatorMaterial = WeaponLocationIndicator.GetActiveMaterial(0) as StandardMaterial3D;
         
         WeaponMesh = GetNode<MeshInstance3D>("Weapon");
-        WeaponMaterial = WeaponMesh.GetActiveMaterial(0) as StandardMaterial3D;
+        _startMeshTransform = WeaponMesh.Transform;
         
         _tweenQueueSystem = GetNode<TweenQueueSystem>("TweenQueueSystem");
         _tweenQueueSystem.Init(this);
@@ -71,16 +71,14 @@ public partial class WeaponSystem : RigidBody3D
     public void WeaponLeft()
     {
         Visible = true;
-        WeaponLocationIndicator.Visible = true;
-        WeaponMaterial!.UseFovOverride = false;
+        // WeaponLocationIndicator.Visible = true;
         EmitSignalWeaponThrown();
     }
 
     public void WeaponBack()
     {
         Visible = false;
-        WeaponLocationIndicator.Visible = false;
-        WeaponMaterial!.UseFovOverride = true;
+        // WeaponLocationIndicator.Visible = false;
         EmitSignalWeaponRetrieved();
     }
 
@@ -96,7 +94,7 @@ public partial class WeaponSystem : RigidBody3D
     {
         _weaponState.SendEvent("throw");
 
-        WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 1f, 1f);
+        // WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 1f, 1f);
         
         _throwDirection = (end - GlobalPosition).Normalized();
         PlantLocation = collisionLocation;
@@ -120,10 +118,11 @@ public partial class WeaponSystem : RigidBody3D
     {
         _weaponState.SendEvent("plant");
 
-        WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 0.2f, 0.2f);
+        // WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 0.2f, 0.2f);
         
         Freeze = true;
         GlobalPosition = PlantLocation;
+        WeaponMesh.Transform = _startMeshTransform;
         LookAt(GlobalTransform.Origin + PlantNormal, Vector3.Up, true);
     }
 
@@ -151,11 +150,12 @@ public partial class WeaponSystem : RigidBody3D
         }
     }
 
-    public override void _PhysicsProcess(double _delta)
+    public override void _Process(double delta)
     {
         if (!FlyingState.Active) return;
         
-        LookAt(GlobalTransform.Origin + LinearVelocity.Normalized(), Vector3.Up, false);
+        WeaponMesh.Rotation = new Vector3(WeaponMesh.Rotation.X, WeaponMesh.Rotation.Y + (float) delta * 100, WeaponMesh.Rotation.Z);
+        //LookAt(GlobalTransform.Origin + LinearVelocity.Normalized(), Vector3.Up, false);
     }
 
     public bool IsPlantedUnderPlatform()