+misc

1 files changed, 11 insertions, 2 deletions

diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/InputModules/PointerInputModule.cs b/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/InputModules/PointerInputModule.cs
index 9103162..3f93e7a 100644
--- a/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/InputModules/PointerInputModule.cs
+++ b/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/InputModules/PointerInputModule.cs
@@ -4,6 +4,8 @@ using UnityEngine.UI;
 
 namespace UnityEngine.EventSystems
 {
+
+    // 会处理触屏和鼠标
     public abstract class PointerInputModule : BaseInputModule
     {
         public const int kMouseLeftId = -1;
@@ -37,7 +39,8 @@ namespace UnityEngine.EventSystems
         protected PointerEventData GetTouchPointerEventData(Touch input, out bool pressed, out bool released)
         {
             PointerEventData pointerData;
-            var created = GetPointerData(input.fingerId, out pointerData, true); // 拿到存储结构，返回是否是新建结构
+            // 从池子里拿到存储结构，返回是否是新建结构
+            var created = GetPointerData(input.fingerId, out pointerData, true); 
 
             pointerData.Reset();
 
@@ -60,8 +63,10 @@ namespace UnityEngine.EventSystems
 
             // 用这个触摸数据做射线检测，检测结果在m_RaycastResultCache
             eventSystem.RaycastAll(pointerData, m_RaycastResultCache); 
-
+            
+            // 只取第一个，舍弃其他的
             var raycast = FindFirstRaycast(m_RaycastResultCache);
+            Debug.Log("raycast: "  + raycast.index);
             pointerData.pointerCurrentRaycast = raycast;
             m_RaycastResultCache.Clear();
             return pointerData;
@@ -209,6 +214,8 @@ namespace UnityEngine.EventSystems
             leftData.scrollDelta = input.mouseScrollDelta;
             leftData.button = PointerEventData.InputButton.Left;
             eventSystem.RaycastAll(leftData, m_RaycastResultCache);
+
+            // 只要第一个raycast结果
             var raycast = FindFirstRaycast(m_RaycastResultCache);
             leftData.pointerCurrentRaycast = raycast;
             m_RaycastResultCache.Clear();
@@ -224,6 +231,7 @@ namespace UnityEngine.EventSystems
             CopyFromTo(leftData, middleData);
             middleData.button = PointerEventData.InputButton.Middle;
 
+            // 设置按键状态
             m_MouseState.SetButtonState(PointerEventData.InputButton.Left, StateForMouseButton(0), leftData);
             m_MouseState.SetButtonState(PointerEventData.InputButton.Right, StateForMouseButton(1), rightData);
             m_MouseState.SetButtonState(PointerEventData.InputButton.Middle, StateForMouseButton(2), middleData);
@@ -252,6 +260,7 @@ namespace UnityEngine.EventSystems
             HandlePointerExitAndEnter(pointerEvent, targetGO);
         }
 
+        // 发送drag事件
         protected virtual void ProcessDrag(PointerEventData pointerEvent)
         {
             if (!pointerEvent.IsPointerMoving() ||