Basic player & enemy movement.

Scripts/Common/GameController.cs

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+using Godot;
+using System;
+
+public partial class GameController : Node
+{
+    public static GameController Instance;
+
+    [Export] public Node2D Player;
+
+    public override void _Ready()
+    {
+        GameController.Instance = this;
+    }
+}

Scripts/Common/GameController.cs.uid

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+uid://djp8dmixf6sq2

Scripts/Enemies/EnemyMovement.cs

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+using Godot;
+using System;
+
+public partial class EnemyMovement : Node
+{
+    [Export] private NavigationAgent2D _agent2D;
+    [Export] private CharacterBody2D _body2D;
+    [Export] private float _speed;
+
+    private double _time = 0;
+    
+    public override void _PhysicsProcess(double delta)
+    {
+        _time += delta;
+        if (_time > 0.2)
+        {
+            _time = 0;
+            _agent2D.SetTargetPosition(GameController.Instance.Player.GlobalPosition);
+        }
+        // _parent.Position = _agent2D.GetNextPathPosition();
+        var gpos = _agent2D.GetNextPathPosition();
+        var dir = (gpos - _body2D.GlobalPosition).Normalized();
+        // _body2D.SetVelocity(dir * _speed * (float)delta);
+        _body2D.GlobalPosition += dir * _speed * (float)delta;
+    }
+}

Scripts/Enemies/EnemyMovement.cs.uid

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+uid://cu37tswrk107q

Scripts/PlayerMovement.cs

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+using Godot;
+using System;
+
+public partial class PlayerMovement : Node
+{
+    [Export] private CharacterBody2D _body2D;
+
+    [Export] private float _speed;
+
+    private Vector2 _direction = new ();
+
+    public override void _Process(double delta)
+    {
+        ReadInput();
+    }
+
+    public override void _PhysicsProcess(double delta)
+    {
+        float dt = (float)delta;
+        
+        _body2D.SetVelocity(_direction * _speed * dt);
+        _body2D.MoveAndSlide();
+    }
+
+    private void ReadInput()
+    {
+        _direction.X = Input.GetAxis("move_left", "move_right");
+        _direction.Y = Input.GetAxis("move_up", "move_down");
+        _direction = _direction.Normalized();
+    }
+}

Scripts/PlayerMovement.cs.uid

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+uid://8drbh4rcl410