登录页一些特效，路书列表详情框架

Assets/Cyp/DemoShader/ScrollTest2.cs

@@ -10,15 +10,17 @@ public class ScrollTest2 : MonoBehaviour
     private ScrollRect scroll;
     private Transform content;
     private float contentSize;
+    private int count;
     [SerializeField] Button L, R;
     void Start()
     {
         scroll = gameObject.GetComponent<ScrollRect>();
         content = gameObject.transform.Find("Viewport").Find("Content");
-        
-        contentSize = 1f/(content.childCount-2);
+        count = content.childCount;
+        contentSize = 1f / (content.childCount - 2);
         scroll.horizontalNormalizedPosition = contentSize / 2;
-        if (L != null) 
+        SetColor();
+        if (L != null)
         {
             L.onClick.AddListener(goLeft);
         }
@@ -30,36 +32,55 @@ public class ScrollTest2 : MonoBehaviour
     void goLeft()
     {
         if (scroll.horizontalNormalizedPosition <= contentSize) return;
+        if (!start) startPosition = scroll.horizontalNormalizedPosition;
         start = true;
         scrollValue = -1 * contentSize / 30;
     }
     void goRight()
     {
-        if ((scroll.horizontalNormalizedPosition + contentSize)>=1) return;
+        if ((scroll.horizontalNormalizedPosition + contentSize) >= 1) return;
+        if (!start) startPosition = scroll.horizontalNormalizedPosition;
         start = true;
         scrollValue = contentSize / 30;
     }
     private bool start = false, _lock = false;
-    private float scrollValue = 0,totalScrollValue = 0;
+    private float scrollValue = 0, totalScrollValue = 0, startPosition = 0;
+    void SetColor()
+    {
+        int index = (int)System.Math.Round(
+                    (scroll.horizontalNormalizedPosition + (contentSize / 2)) / contentSize,
+                    0);
+        for (int i = 1; i < content.childCount-1; i++) 
+        {
+            string c = "#FFF";
+            if (i == index) 
+            {
+                c = "#FF2742";
+            }
+            ColorUtility.TryParseHtmlString(c, out Color color);
+            content.GetChild(i).Find("Image").GetComponent<Image>().color = color;
+        }
+    }
     // Update is called once per frame
     void Update()
     {
         if (start)
         {
-            if (_lock) return;
-            _lock = true;
             totalScrollValue += scrollValue;
             if (System.Math.Abs(totalScrollValue) >= contentSize)
             {
                 scrollValue = 0;
                 start = false;
+                scroll.horizontalNormalizedPosition = startPosition + totalScrollValue;
+                //Debug.Log();
+                
+                SetColor();
                 totalScrollValue = 0;
             }
             else 
             {
                 scroll.horizontalNormalizedPosition += scrollValue;
             }
-            _lock = false;
         }
     }
 }