// Copyright 2016 Nibiru. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/// This script provides an interface for gaze based responders used with
/// the NxrGaze script.
using UnityEngine;
namespace Nxr.Internal
{
    public interface INxrGazeResponder
    {
        /// Called when the user is looking on a GameObject with this script,
        /// as long as it is set to an appropriate layer (see NxrGaze).
        void OnGazeEnter();

        /// Called when the user stops looking on the GameObject, after OnGazeEnter
        /// was already called.
        void OnGazeExit();

        /// Called when the trigger is used, between OnGazeEnter and OnGazeExit.
        void OnGazeTrigger();

        /// <summary>
        /// 
        ///  
        /// </summary>
        /// <param name="position"></param>
        void OnUpdateIntersectionPosition(Vector3 position);
    }
}