/// <summary>項目が選択された</summary>
public void OnSelect(int index = -1)
{
if (onSelect != null)
{
Interactable = false;
onSelect.Invoke(index);
}
}
/// <summary>隙間の抹消</summary>
private void destroyDummy(GameObject element)
{
if (element != null)
{
element.transform.SetParent(content.transform);
var index = dummy.transform.GetSiblingIndex();
element.transform.SetSiblingIndex(index);
element = null;
if (onEndOrder != null)
{
onEndOrder.Invoke(index);
}
}
Destroy(dummy.gameObject);
}
/// <summary>隙間の生成</summary>
private GameObject createDummy(GameObject parent, GameObject element)
{
var obj = new GameObject("DummyElement", new Type [] { typeof(RectTransform), typeof(ElementIndex), });
obj.transform.SetParent(parent.transform);
obj.transform.SetSiblingIndex(element.transform.GetSiblingIndex());
element.transform.SetParent(transform);
var rect = obj.GetComponent <RectTransform> ();
var sorceRect = element.GetComponent <RectTransform> ();
rect.sizeDelta = sorceRect.sizeDelta;
rect.pivot = sorceRect.pivot;
rect.localRotation = sorceRect.localRotation;
rect.localScale = sorceRect.localScale;
var index = element.GetComponentInChildren <ElementIndex> ().Index;
obj.GetComponent <ElementIndex> ().Index = index;
if (onBeginOrder != null)
{
onBeginOrder.Invoke(index);
}
return(obj);
}
/// <summary>隙間位置の更新 (項目から呼ばれる)</summary>
public void UpdateDraggingPosition(Vector2 pos)
{
var normarizedContentPosition = Vector2.Max(Vector2.Min((pos - contentRect.position) / contentRect.size, Vector2.one), Vector2.zero);
var index = Mathf.Clamp((elementsCount - 1) - Mathf.FloorToInt(normarizedContentPosition.y / (1f / elementsCount)), 0, elementsCount - 1);
if (dummy.transform.GetSiblingIndex() != referencePointsCount + index)
{
dummy.transform.SetSiblingIndex(referencePointsCount + index);
if (onUpdateOrder != null)
{
onUpdateOrder.Invoke(index);
}
}
var delta = pos.OutArea(viewportRect);
if ((delta.y < 0f && scrollRect.verticalNormalizedPosition >= 0f) || (delta.y > 0f && scrollRect.verticalNormalizedPosition <= 1f))
{
if (delta.y > 0f && scrollRect.verticalNormalizedPosition < 0f)
{
scrollRect.verticalNormalizedPosition = 1e-5f; // 脱出速度的な何か (ドラッグ中に下端に達した後、上向きに自動スクロールしない場合は、この数値を大きくしてみてください。)
}
scrollRect.velocity = -delta * autoScrollSpeed;
}
}
