/// <summary>
/// Performs the animated ending of a button's highlighted state
/// </summary>
IEnumerator EndHighlight()
{
this.StopCoroutine(ref m_IconHighlightCoroutine);
m_IconHighlightCoroutine = StartCoroutine(IconContainerContentsEndHighlight());
var transitionAmount = Time.deltaTime;
var originalGradientPair = GetMaterialColors();
var targetGradientPair = normalGradientPair;
var currentLocalScale = m_ContentContainer.localScale;
var targetScale = m_OriginalContentContainerLocalScale;
var highlightDuration = m_EndHighlightDuration > 0f ? m_EndHighlightDuration : 0.01f; // Add sane default if highlight duration is zero
while (transitionAmount < highlightDuration)
{
var shapedTransitionAmount = MathUtilsExt.SmoothInOutLerpFloat(transitionAmount += Time.unscaledDeltaTime / highlightDuration);
var transitioningGradientPair = GradientPair.Lerp(originalGradientPair, targetGradientPair, shapedTransitionAmount);
SetMaterialColors(transitioningGradientPair);
m_ContentContainer.localScale = Vector3.Lerp(currentLocalScale, targetScale, shapedTransitionAmount);
yield return(null);
}
SetMaterialColors(normalGradientPair);
m_ContentContainer.localScale = targetScale;
m_HighlightCoroutine = null;
}
/// <summary>
/// Performs the animated beginning of a button's highlighted state
/// </summary>
IEnumerator BeginHighlight()
{
this.StopCoroutine(ref m_IconHighlightCoroutine);
m_IconHighlightCoroutine = StartCoroutine(IconContainerContentsBeginHighlight());
var transitionAmount = Time.deltaTime;
var currentGradientPair = GetMaterialColors();
var targetGradientPair = highlightGradientPair;
var currentLocalScale = m_ContentContainer.localScale;
var highlightedLocalScale = m_HighlightContentContainerLocalScale;
var highlightDuration = m_BeginHighlightDuration;
while (transitionAmount < highlightDuration) // Skip while look if user has set the m_BeginHighlightDuration to a value at or below zero
{
var shapedTransitionAmount = MathUtilsExt.SmoothInOutLerpFloat(transitionAmount += Time.unscaledDeltaTime / highlightDuration);
m_ContentContainer.localScale = Vector3.Lerp(currentLocalScale, highlightedLocalScale, shapedTransitionAmount);
currentGradientPair = GradientPair.Lerp(currentGradientPair, targetGradientPair, shapedTransitionAmount);
SetMaterialColors(currentGradientPair);
yield return(null);
}
SetMaterialColors(targetGradientPair);
m_ContentContainer.localScale = highlightedLocalScale;
m_HighlightCoroutine = null;
}
/// <summary>
/// Performs the animated ending of a button's highlighted state
/// </summary>
IEnumerator EndHighlight()
{
this.StopCoroutine(ref m_IconHighlightCoroutine);
m_IconHighlightCoroutine = StartCoroutine(IconContainerContentsEndHighlight());
const float kTargetTransitionAmount = 1f;
var transitionAmount = Time.unscaledDeltaTime;
var shapedTransitionAmount = 0f;
var currentGradientPair = GetMaterialColors();
var targetGradientPair = normalGradientPair;
var currentLocalScale = m_ContentContainer.localScale;
var targetScale = m_OriginalContentContainerLocalScale;
while (transitionAmount < kTargetTransitionAmount)
{
transitionAmount += Time.unscaledDeltaTime * 3;
shapedTransitionAmount = Mathf.Pow(transitionAmount, 2);
currentGradientPair = GradientPair.Lerp(currentGradientPair, targetGradientPair, shapedTransitionAmount);
SetMaterialColors(normalGradientPair);
m_ContentContainer.localScale = Vector3.Lerp(currentLocalScale, targetScale, shapedTransitionAmount);
yield return null;
}
SetMaterialColors(normalGradientPair);
m_ContentContainer.localScale = targetScale;
m_HighlightCoroutine = null;
}
/// <summary>
/// Performs the animated beginning of a button's highlighted state
/// </summary>
IEnumerator BeginHighlight()
{
this.StopCoroutine(ref m_IconHighlightCoroutine);
m_IconHighlightCoroutine = StartCoroutine(IconContainerContentsBeginHighlight());
const float kTargetTransitionAmount = 1f;
var transitionAmount = Time.unscaledDeltaTime;
var shapedTransitionAmount = 0f;
var currentGradientPair = GetMaterialColors();
var targetGradientPair = highlightGradientPair;
var currentLocalScale = m_ContentContainer.localScale;
var highlightedLocalScale = new Vector3(m_OriginalContentContainerLocalScale.x, m_OriginalContentContainerLocalScale.y, m_OriginalContentContainerLocalScale.z * m_highlightZScaleMultiplier);
while (transitionAmount < kTargetTransitionAmount)
{
transitionAmount += Time.unscaledDeltaTime * 3;
shapedTransitionAmount = Mathf.Pow(transitionAmount, 2);
m_ContentContainer.localScale = Vector3.Lerp(currentLocalScale, highlightedLocalScale, shapedTransitionAmount);
currentGradientPair = GradientPair.Lerp(currentGradientPair, targetGradientPair, shapedTransitionAmount);
SetMaterialColors(currentGradientPair);
yield return null;
}
SetMaterialColors(targetGradientPair);
m_ContentContainer.localScale = highlightedLocalScale;
m_HighlightCoroutine = null;
}
public void Lerp_Interpolates_StartAndEndColors()
{
var x = new GradientPair(m_ColorA, m_ColorB);
var y = new GradientPair(m_ColorC, m_ColorD);
var lerped = GradientPair.Lerp(x, y, .1f);
Assert.AreEqual(Color.Lerp(x.a, y.a, .1f), lerped.a);
Assert.AreEqual(Color.Lerp(x.b, y.b, .1f), lerped.b);
}
