private void UF_SendEventMessage(UIDrag source, UIDrag target)
{
if (!string.IsNullOrEmpty(eDragDown))
{
MessageSystem.UF_GetInstance().UF_Send(DefineEvent.E_UI_OPERA, eDragDown, source, target, this);
}
}
//
// private bool checkIsDragCollsion(Rect a,Rect b){
// // Rect rect = Rect.zero;
// // Rect pice = Rect.zero;
// // //比较面积
// // if (a.width * a.height > b.width * b.height) {
// // rect = a;
// // pice = b;
// // } else {
// // rect = b;
// // pice = a;
// // }
// //
// // mPoints [0] = new Vector2 (pice.x, pice.y);
// // mPoints [1] = new Vector2 (pice.x + pice.width, pice.y);
// // mPoints [2] = new Vector2 (pice.x + pice.width, pice.y + pice.height);
// // mPoints [3] = new Vector2 (pice.x, pice.y + pice.height);
// //
// // for(int k = 0;k < mPoints.Length;k++){
// // if (rect.Contains (mPoints [k])) {
// // return true;
// // }
// // }
//
// Vector2 point = new Vector2 (a.x + a.width / 2.0f, a.y + a.height / 2);
// return b.Contains (point);
//
// }
//
//
// private bool CheckCollsion(Rect box,Vector2 pos){
// return box.Contains (pos);
// }
//
//
//
// public void UpdateCollision(UIDrag target,Vector2 pos){
// if (m_Drags != null && m_Drags.Count > 0) {
// UIDrag drag = null;
// for (int k = 0; k < m_Drags.Count; k++) {
// drag = m_Drags [k];
// if (drag != null && drag!= target && drag.gameObject.activeInHierarchy && drag.enabled) {
//// if (checkIsDragCollsion (getRect (target.rectTransform.rect, pos),getRect (drag.rectTransform.rect, drag.rectTransform.anchoredPosition))) {
// if(CheckCollsion(getRect (drag.rectTransform.rect, drag.rectTransform.anchoredPosition),pos)){
// SendEventMessage (target, m_Drags [k]);
// break;
// }
// }
// }
// }
// }
//
//EventSystem 射线方式检测，适配各种对其
internal void UF_UpdateCollision(UIDrag target, PointerEventData eventData)
{
if (m_Drags != null && m_Drags.Count > 0)
{
List <UnityEngine.EventSystems.RaycastResult> listRaycastResult = ListCache <UnityEngine.EventSystems.RaycastResult> .Acquire();
UnityEngine.EventSystems.EventSystem.current.RaycastAll(eventData, listRaycastResult);
if (listRaycastResult.Count > 0)
{
for (int i = 0; i < listRaycastResult.Count; i++)
{
var go = listRaycastResult [i].gameObject;
for (int k = 0; k < m_Drags.Count; k++)
{
if (m_Drags [k] != null && target.gameObject != go && m_Drags [k].gameObject == go)
{
UF_SendEventMessage(target, m_Drags [k]);
if (!allowMultiCollision)
{
ListCache <UnityEngine.EventSystems.RaycastResult> .Release(listRaycastResult);
return;
}
}
}
}
}
ListCache <UnityEngine.EventSystems.RaycastResult> .Release(listRaycastResult);
}
}
public void UF_Add(UIDrag drag)
{
if (drag != null && !m_Drags.Contains(drag))
{
m_Drags.Add(drag);
drag.UF_SetDragGroup(this);
}
}
public void UF_Remove(UIDrag drag)
{
if (drag != null)
{
if (m_Drags.Remove(drag))
{
drag.UF_SetDragGroup(null);
}
}
}
public override void UF_SetValue(object value)
{
if (value == null)
{
return;
}
UIDrag drag = value as UIDrag;
UF_Add(drag);
}
public void UF_OnReset()
{
UIDrag drag = null;
for (int k = m_PtrSource; k < m_Drags.Count; k++)
{
drag = m_Drags [k];
if (drag != null)
{
drag.UF_SetDragGroup(null);
}
m_Drags.RemoveAt(k);
k--;
}
}