//Create an input feature box and animate downward
public IEnumerator AddInputFeature(string attr = null)
{
canvasGroup.blocksRaycasts = false;
InputFeatureBox inputFeatureBox = Instantiate(inputFeatureBoxObj, this.transform).GetComponent <InputFeatureBox>();
if (attr != null)
{
inputFeatureBox.Initialize(attr);
}
else
{
inputFeatureBox.attributeDelegate += SetAttribute;
}
inputFeatureBoxes.Add(inputFeatureBox);
RectTransform inputFeatureBoxRect = inputFeatureBox.transform as RectTransform;
CanvasGroup inputFeatureBoxCanvasGroup = inputFeatureBox.GetComponent <CanvasGroup>();
float t = 0f;
while (t < 1f)
{
t += Time.deltaTime * 2f;
float v = Mathf.Sin(Mathf.PI * t / 2f);
float w = 1f - Mathf.Sin(Mathf.PI * (1 - t) / 2f);
inputFeatureBoxRect.anchoredPosition = Vector2.Lerp(Vector2.down * startY + Vector2.down * (inputFeatureBoxes.Count - 2) * yStep, Vector2.down * startY + Vector2.down * (inputFeatureBoxes.Count - 1) * yStep, v);
inputFeatureBoxCanvasGroup.alpha = w;
yield return(null);
}
inputFeatureBoxCanvasGroup.alpha = 1;
canvasGroup.blocksRaycasts = true;
}
public IEnumerator RemoveInputFeature(InputFeatureBox box)
{
int index = inputFeatureBoxes.IndexOf(box);
canvasGroup.blocksRaycasts = false;
Dictionary <InputFeatureBox, Vector2> startPositions = new Dictionary <InputFeatureBox, Vector2>();
Dictionary <InputFeatureBox, Vector2> targetPositions = new Dictionary <InputFeatureBox, Vector2>();
for (int i = 0; i < inputFeatureBoxes.Count; i++)
{
if (i < index)
{
startPositions.Add(inputFeatureBoxes[i], ((RectTransform)inputFeatureBoxes[i].transform).anchoredPosition);
targetPositions.Add(inputFeatureBoxes[i], startPositions[inputFeatureBoxes[i]]);
}
else if (i > index)
{
startPositions.Add(inputFeatureBoxes[i], ((RectTransform)inputFeatureBoxes[i].transform).anchoredPosition);
targetPositions.Add(inputFeatureBoxes[i], startPositions[inputFeatureBoxes[i]] + Vector2.up * yStep);
}
}
inputFeatureBoxes.Remove(box);
CanvasGroup boxCanvasGroup = box.GetComponent <CanvasGroup>();
float t = 0f;
while (t < 1f)
{
t += Time.deltaTime * 2f;
float v = Mathf.Sin(Mathf.PI * t / 2f);
foreach (InputFeatureBox inputFeatureBox in inputFeatureBoxes)
{
((RectTransform)inputFeatureBox.transform).anchoredPosition = Vector2.Lerp(startPositions[inputFeatureBox], targetPositions[inputFeatureBox], v);
}
boxCanvasGroup.alpha = 1 - t;
yield return(null);
}
canvasGroup.blocksRaycasts = true;
Destroy(box.gameObject);
}