enemies can move, also changed and named a few collision layers

scenes/enemies/FirstEnemy.cs

@@ -0,0 +1,40 @@
+using Godot;
+using System;
+using Movementtests.player_controller.Scripts;
+
+public partial class FirstEnemy : CharacterBody3D
+{
+	[Export]
+	public Node3D Target { get; set; }
+	
+	[Export(PropertyHint.Range, "0,10,0.1,or_greater")]
+	public float Speed = 5.0f;
+	
+	private RayCast3D _wallInFrontRayCast;
+	
+	public override void _Ready()
+	{
+		_wallInFrontRayCast = GetNode<RayCast3D>("WallInFrontRayCast");
+	}
+
+	public override void _PhysicsProcess(double delta)
+	{
+		var target = Target.GlobalPosition;
+		var direction = (target - GlobalPosition).Normalized();
+
+		var targetPlane = new Vector3(target.X, GlobalPosition.Y, target.Z);
+		LookAt(targetPlane);
+		
+		var velocity = Velocity;
+		velocity.X = direction.X * Speed;
+		velocity.Z = direction.Z * Speed;
+
+		if (_wallInFrontRayCast.IsColliding())
+			velocity.Y = Speed;
+		else if (!IsOnFloor())
+			velocity += GetGravity() * (float)delta;
+		
+		Velocity = velocity;
+		MoveAndSlide();
+	}
+}