using System;
using System.Collections.Generic;
using System.Linq;
using SHADE;


public class Cutscene : Script
{

  public float duration = 3.0f;

  private Renderable pic1Renderable;
  private Renderable pic2Renderable;
  private Renderable pic3Renderable;

  private Transform pic1Tran;
  private Transform pic2Tran;
  private Transform pic3Tran;

  private float alphaIn = 0.0f; 
  //private float alphaOut = 1.0f; 
  private float time = 0.0f;
  private bool showPic1 = true;
  private bool showPic2 = false;
  private bool showPic3 = false;
  public float slideSpeed = 5.0f;

  public GameObject cutscene1Points;
  private List<Transform> listOfCutscene1Points;

  public GameObject cutscene1Pics;
  private List<Renderable> listOfCutscene1Pics;

  protected override void awake()
  {
    listOfCutscene1Points = cutscene1Points.GetComponentsInChildren<Transform>().ToList();
    if (listOfCutscene1Points.Count == 0)
      Debug.LogError("Cutscene1Points Empty");

    listOfCutscene1Pics = cutscene1Pics.GetComponentsInChildren<Renderable>().ToList();
    if (listOfCutscene1Pics.Count == 0)
      Debug.LogError("Cutscene1Pics Empty");

    if (listOfCutscene1Pics[0])
    { 
      pic1Renderable = listOfCutscene1Pics[0].GetComponent<Renderable>();
      pic1Tran = listOfCutscene1Pics[0].GetComponent<Transform>();
      pic1Renderable.Material.SetProperty<float>("data.alpha" , 0.0f);
    }
    else
      Debug.LogError("PIC1 MISSING");

    if (listOfCutscene1Pics[1])
    { 
      pic2Renderable = listOfCutscene1Pics[1].GetComponent<Renderable>();
      pic2Tran = listOfCutscene1Pics[1].GetComponent<Transform>();
      pic2Renderable.Material.SetProperty<float>("data.alpha", 0.0f);
    }
    else
      Debug.LogError("PIC2 MISSING");

    if (listOfCutscene1Pics[2])
    { 
      pic3Renderable = listOfCutscene1Pics[2].GetComponent<Renderable>();
      pic3Tran = listOfCutscene1Pics[2].GetComponent<Transform>();
      pic3Renderable.Material.SetProperty<float>("data.alpha", 0.0f);
    }
    else
      Debug.LogError("PIC3 MISSING");

  }

  protected override void update()
  {

    if (showPic1)
    {
      pic1Tran.LocalPosition = Vector3.Lerp(pic1Tran.LocalPosition, listOfCutscene1Points[0].LocalPosition, slideSpeed * Time.DeltaTimeF);
      if (time < duration)
      {
        alphaIn = SHADE.Math.Lerp(0.0f, 1.0f, time / duration);
        time += Time.DeltaTimeF;
      }
      else
        alphaIn = 1.0f;

      pic1Renderable.Material.SetProperty<float>("data.alpha", alphaIn);
      if (alphaIn >= 1.0f)
      {
        showPic1 = false;
        showPic2 = true;
        time = 0;
        alphaIn = 0;
      }
    }

    if (showPic2)
    {
      pic2Tran.LocalPosition = Vector3.Lerp(pic2Tran.LocalPosition, listOfCutscene1Points[1].LocalPosition, slideSpeed * Time.DeltaTimeF);
      if (time < duration)
      {
        alphaIn = SHADE.Math.Lerp(0.0f, 1.0f, time / duration);
        time += Time.DeltaTimeF;
      }
      else
        alphaIn = 1.0f;

      pic2Renderable.Material.SetProperty<float>("data.alpha", alphaIn);
      if (alphaIn >= 1.0f)
      {
        showPic2 = false;
        showPic3 = true;
        time = 0;
        alphaIn = 0;
      }
    }

    if (showPic3)
    {
      pic3Tran.LocalPosition = Vector3.Lerp(pic3Tran.LocalPosition, listOfCutscene1Points[2].LocalPosition, slideSpeed * Time.DeltaTimeF);
      if (time < duration)
      {
        alphaIn = SHADE.Math.Lerp(0.0f, 1.0f, time / duration);
        time += Time.DeltaTimeF;
      }
      else
        alphaIn = 1.0f;

      pic3Renderable.Material.SetProperty<float>("data.alpha", alphaIn);
      if (alphaIn >= 1.0f)
      {
        showPic3 = false;
        time = 0;
        alphaIn = 0;
      }
    }

  }
}