/// <summary>
/// Start the dragging operation.
/// </summary>
void OnDragStart()
{
if (!enabled || mTouchID != int.MinValue)
{
return;
}
// If we have a restriction, check to see if its condition has been met first
if (restriction != Restriction.None)
{
if (restriction == Restriction.Horizontal)
{
UnityEngine.Vector2 delta = UICamera.currentTouch.totalDelta;
if (UnityEngine.Mathf.Abs(delta.x) < UnityEngine.Mathf.Abs(delta.y))
{
return;
}
}
else if (restriction == Restriction.Vertical)
{
UnityEngine.Vector2 delta = UICamera.currentTouch.totalDelta;
if (UnityEngine.Mathf.Abs(delta.x) > UnityEngine.Mathf.Abs(delta.y))
{
return;
}
}
else if (restriction == Restriction.PressAndHold)
{
if (mPressTime + 1f > RealTime.time)
{
return;
}
}
}
if (cloneOnDrag)
{
UnityEngine.Vector3 screenPos = new UnityEngine.Vector3(UICamera.currentTouch.pos.x, UICamera.currentTouch.pos.y, 0);
UnityEngine.Vector3 pos = UICamera.mainCamera.ScreenToWorldPoint(screenPos);
//将clone放在UISkillSetting或者UISkillStorage下
UnityEngine.GameObject clone = null;
UISkillSetting skillSetting = NGUITools.FindInParents <UISkillSetting>(gameObject);
if (skillSetting != null)
{
clone = NGUITools.AddChild(skillSetting.gameObject, gameObject);
}
else
{
UISkillStorage skillStorage = NGUITools.FindInParents <UISkillStorage>(gameObject);
if (skillStorage != null)
{
clone = NGUITools.AddChild(skillStorage.gameObject, gameObject);
}
}
clone.transform.position = pos;
clone.transform.localRotation = transform.localRotation;
clone.transform.localScale = transform.localScale;
UIButtonColor bc = clone.GetComponent <UIButtonColor>();
if (bc != null)
{
bc.defaultColor = GetComponent <UIButtonColor>().defaultColor;
}
UICamera.Notify(UICamera.currentTouch.pressed, "OnPress", false);
UICamera.currentTouch.pressed = clone;
UICamera.currentTouch.dragged = clone;
UIDragDropForSkill item = clone.GetComponent <UIDragDropForSkill>();
UISkillSlot skillSlot = this.GetComponent <UISkillSlot>();
if (null != skillSlot)
{
//如果拖动的Slot内不含有任何技能，则不允许拖动
if (skillSlot.SkillId == -1 || (!skillSlot.m_IsUnlock && skillSlot.slotType == SlotType.SkillStorage))
{
NGUITools.DestroyImmediate(clone);
return;
}
else
{
skillSlot.SetIcon("");
}
}
UISkillSlot cloneSlot = clone.GetComponent <UISkillSlot>();
cloneSlot.SkillId = skillSlot.SkillId;
cloneSlot.slotType = skillSlot.slotType;
item.Start();
item.OnDragDropStart();
}
else
{
OnDragDropStart();
}
}
/// <summary>
/// Drop the item onto the specified object.
/// </summary>
protected virtual void OnDragDropRelease(UnityEngine.GameObject surface)
{
if (cloneOnDrag)
{
UISkillSlot dragedSlot = gameObject.GetComponent <UISkillSlot>();
//判断dragedslot是属于SkillSeting下的还是SkillStorage下
//从SkillSeting拖出
if (dragedSlot.slotType == SlotType.SkillSetting)
{
UISkillSetting ddSkillSeting = null;
UISkillPanel skillPanel = NGUITools.FindInParents <UISkillPanel>(gameObject);
if (skillPanel != null)
{
ddSkillSeting = skillPanel.uiSkillSetting;
}
if (ddSkillSeting == null)
{
return;
}
if (surface == null)
{
//通知卸载该技能
ddSkillSeting.UnloadSkill(dragedSlot);
NGUITools.Destroy(gameObject);
return;
}
UISkillSlot surfaceSlot = surface.GetComponent <UISkillSlot>();
if (surfaceSlot != null)
{
//surface含有UISkillSlot组件并属于SkillSeting或者SkillStorage时，进行交换
if (surfaceSlot.slotType == SlotType.SkillSetting)
{
ddSkillSeting.ExchangeSlot(dragedSlot, surfaceSlot);
}
else
{
//技能图标拖到非SkillSetting和非SkillStorage上时，卸载
ddSkillSeting.UnloadSkill(dragedSlot);
}
}
else
{
//surface没有怪UISkillSlot时，卸载
ddSkillSeting.UnloadSkill(dragedSlot);
}
NGUITools.Destroy(gameObject);
}
//从SkillStorage拖出
else if (dragedSlot.slotType == SlotType.SkillStorage)
{
UISkillStorage ddSkillStorage = NGUITools.FindInParents <UISkillStorage>(gameObject);
if (null == ddSkillStorage)
{
return;
}
//surface为空的话需要重置dragedslot
if (surface == null)
{
ddSkillStorage.ResetSlot(dragedSlot);
NGUITools.Destroy(gameObject);
return;
}
UISkillSlot surfaceSlot = surface.GetComponent <UISkillSlot>();
if (surfaceSlot != null)
{
if (surfaceSlot.slotType == SlotType.SkillSetting)
{
//从Storage拖到SkillSetting时，交换
ddSkillStorage.ExchangeSlot(dragedSlot, surfaceSlot);
ddSkillStorage.ResetSlot(dragedSlot);
}
else
{
//如果surface不是SkillSetting类型时，重置
ddSkillStorage.ResetSlot(dragedSlot);
}
}
else
{
//surface中不含有UISkillSlot组件时，重置
ddSkillStorage.ResetSlot(dragedSlot);
}
NGUITools.Destroy(gameObject);
}
}
}