using UnityEngine;
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using UnityEngine.UI;
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using System.Collections;
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namespace EnhancedScrollerDemos.SnappingDemo
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{
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/// <summary>
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/// This class displays a popup panel when the user wins some credits
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/// </summary>
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public class PlayWin : MonoBehaviour
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{
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/// <summary>
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/// Cached transform to speed up processing
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/// </summary>
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private Transform _transform;
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/// <summary>
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/// The amount of time left before moving to the next state
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/// </summary>
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private float _timeLeft;
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/// <summary>
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/// This is the UI text element to show the score
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/// </summary>
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public Text scoreText;
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/// <summary>
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/// The amount of time to zoom in
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/// </summary>
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public float zoomTime;
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/// <summary>
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/// The amount of time to hold in place
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/// </summary>
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public float holdTime;
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/// <summary>
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/// The amount of time to disappear
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/// </summary>
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public float unZoomTime;
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void Awake()
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{
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// cache the transform and hide the panel
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_transform = transform;
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_transform.localScale = Vector3.zero;
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}
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/// <summary>
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/// This function intiates the playing of the panel
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/// </summary>
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/// <param name="score"></param>
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public void Play(int score)
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{
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// set the score text
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scoreText.text = string.Format("{0:n0}", score);
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// hide the panel to start
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transform.localScale = Vector3.zero;
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// reset the timer to the zoom time and start the play zoom
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_timeLeft = zoomTime;
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StartCoroutine(PlayZoom());
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}
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/// <summary>
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/// This function makes the panel larger over time
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/// </summary>
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/// <returns></returns>
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IEnumerator PlayZoom()
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{
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while (_timeLeft > 0)
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{
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// decrement the timer
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_timeLeft -= Time.deltaTime;
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// set the scale of the transform between hidden and showing based on the amount of time left
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_transform.localScale = Vector3.Lerp(Vector3.zero, Vector3.one, (zoomTime - _timeLeft) / zoomTime);
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yield return null;
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}
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// set the transform to full showing (in case our Lerp didn't quite finish at 1)
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transform.localScale = Vector3.one;
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// reset the timer to the hold time and play the hold
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_timeLeft = holdTime;
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StartCoroutine(PlayHold());
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}
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/// <summary>
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/// This function waits for a set amount of time
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/// </summary>
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/// <returns></returns>
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IEnumerator PlayHold()
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{
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while (_timeLeft > 0)
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{
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// decrement the timer
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_timeLeft -= Time.deltaTime;
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yield return null;
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}
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// reset the timer to the unzoom time and play the unzoom
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_timeLeft = unZoomTime;
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StartCoroutine(PlayUnZoom());
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}
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/// <summary>
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/// This function hides the panel over time
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/// </summary>
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/// <returns></returns>
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IEnumerator PlayUnZoom()
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{
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while (_timeLeft > 0)
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{
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// decrement the timer
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_timeLeft -= Time.deltaTime;
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// set the scale of the transform between showing and hidden based on the amount of time left
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_transform.localScale = Vector3.Lerp(Vector3.one, Vector3.zero, (unZoomTime - _timeLeft) / unZoomTime);
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yield return null;
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}
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// set the transform to full hidden (in case our Lerp didn't quite finish at 0)
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transform.localScale = Vector3.zero;
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}
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}
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}
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