using Godot;

public partial class TestNavigation2 : Node2D
{
    private Node2D _navigation2D;


    private Sprite2D _enemy;
    private NavigationAgent2D _navigationAgent2D;

    public override void _Ready()
    {
        _navigation2D = GetNode<Node2D>("Node2D");
        _enemy = _navigation2D.GetNode<Sprite2D>("Enemy");
        _navigationAgent2D = _enemy.GetNode<NavigationAgent2D>("NavigationAgent2D");

        _navigationAgent2D.TargetPosition = GetGlobalMousePosition();

    }

    public override void _PhysicsProcess(double delta)
    {
        if (_navigationAgent2D.IsNavigationFinished())
        {
            return;
        }
        
        var pos = _navigationAgent2D.GetNextPathPosition();
        _enemy.GlobalPosition = _enemy.GlobalPosition.MoveToward(pos, 400 * (float)delta);

    }

    public override void _Process(double delta)
    {
        QueueRedraw();
    }

    public override void _Draw()
    {
        var points = _navigationAgent2D.GetCurrentNavigationPath();
        if (points != null && points.Length >= 2)
        {
            DrawPolyline(points, Colors.Red);
            //DrawMultiline(points, Colors.Red);
        }
    }

    private void _on_Timer_timeout()
    {
        var target = GetGlobalMousePosition();
        _navigationAgent2D.TargetPosition = target;
    }
}