using Godot;

public partial class CharacterBody3D : Godot.CharacterBody3D
{
  public const float Speed = 5.0f;
  public const float JumpVelocity = 4.5f;

  [Export]
  private float _sensitivityHorizontal = 0.05f;
  [Export]
  private float _sensitivityVertical = 0.05f;
  [Export]
  private float _joystickDeadZone = 0.5f;

  private Node3D _cameraMount;
  private Node3D _pivot;

  // Get the gravity from the project settings to be synced with RigidBody nodes.
  public float gravity = ProjectSettings.GetSetting("physics/3d/default_gravity").AsSingle();

  public override void _Ready()
  {
    Input.MouseMode = Input.MouseModeEnum.Captured;
    _cameraMount = GetNode<Node3D>("/root/Main/CharacterBody3D/CameraMount");
    _pivot = GetNode<Node3D>("/root/Main/CharacterBody3D/Pivot");
  }

  public override void _UnhandledInput(InputEvent @event)
  {
    if (Input.IsActionJustPressed("quit"))
      GetTree().Quit();
  }

  public override void _PhysicsProcess(double delta)
  {
    Vector3 velocity = Velocity;

    // Add the gravity.
    if (!IsOnFloor())
      velocity.Y -= gravity * (float)delta;

    // Handle Jump.
    if (Input.IsActionJustPressed("jump") && IsOnFloor())
      velocity.Y = JumpVelocity;

    // Get the input direction and handle the movement/deceleration.
    // As good practice, you should replace UI actions with custom gameplay actions.
    Vector2 inputDir = Input.GetVector("right", "left", "back", "forward");
    Vector3 direction = (Transform.Basis * new Vector3(inputDir.X, 0, inputDir.Y)).Normalized();
    if (direction != Vector3.Zero)
    {
      velocity.X = direction.X * Speed;
      velocity.Z = direction.Z * Speed;
      direction = direction.Normalized();
      GetNode<Node3D>("Pivot").LookAt(Position + direction, Vector3.Up);
    }
    else
    {
      velocity.X = Mathf.MoveToward(Velocity.X, 0, Speed);
      velocity.Z = Mathf.MoveToward(Velocity.Z, 0, Speed);
    }

    Velocity = velocity;
    MoveAndSlide();
  }
}