using System;

using UnityEngine;

using Framework.Services;

namespace Framework.Cameras {

  /// <summary>Provides access to the current camera</summary>
  [
    ServiceScope(Scope.Scene),
    DefaultBinding(typeof(CameraManager))
  ]
  public interface ICameraManager {

    /// <summary>Triggered when the active camera changes</summary>
    event Action<Camera> CameraChanged;

    /// <summary>Camera that is currently active</summary>
    /// <remarks>
    ///   By informing the camera manager about which camera is being used, other services
    ///   such as a background music or ambient sound service can keep their audio sources
    ///   attached to the active camera.
    /// </remarks>
    Camera ActiveCamera { get; set; }

  }

} // namespace Framework.Cameras