/******************************************************************************
 * Copyright (C) Leap Motion, Inc. 2011-2017.                                 *
 * Leap Motion proprietary and  confidential.                                 *
 *                                                                            *
 * Use subject to the terms of the Leap Motion SDK Agreement available at     *
 * https://developer.leapmotion.com/sdk_agreement, or another agreement       *
 * between Leap Motion and you, your company or other organization.           *
 ******************************************************************************/

﻿using Leap.Unity.Interaction.Internal;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Leap.Unity.Interaction {

  #region IInteractionBehaviour

  public static class IInteractionBehaviourExtensions {

    public static bool ShouldIgnoreHover(this IInteractionBehaviour intObj, InteractionController controller) {
      switch (intObj.ignoreHoverMode) {
        case IgnoreHoverMode.None: return false;
        case IgnoreHoverMode.Left: return  !controller.isTracked || controller.isLeft;
        case IgnoreHoverMode.Right: return !controller.isTracked || controller.isRight;
        case IgnoreHoverMode.Both: default: return true;
      }
    }

  }

  #endregion

  #region Vector3

  public static class Vector3Extensions {

    public static Vector3 ConstrainToSegment(this Vector3 position, Vector3 a, Vector3 b) {
      Vector3 ba = b - a;
      return Vector3.Lerp(a, b, Vector3.Dot(position - a, ba) / ba.sqrMagnitude);
    }

    public static float LargestComp(this Vector3 v) {
      return Mathf.Max(Mathf.Max(v.x, v.y), v.z);
    }

    public static int LargestCompIdx(this Vector3 v) {
      return v.x > v.y ?
               v.x > v.z ?
                 0 // x > y, x > z
               : 2 // x > y, z > x
             : v.y > v.z ?
               1   // y > x, y > z
             : 2;  // y > x, z > y
    }

    public static Vector3 Abs(this Vector3 v) {
      return new Vector3(Mathf.Abs(v.x), Mathf.Abs(v.y), Mathf.Abs(v.z));
    }

  }

  #endregion

}
