Compile flag support for Unity6 (#493)

* Update CardPopup2D.cs

add support for Unity 6 api

* Gradient2.ModifyMesh

Modify Mesh should respond to gradient key updates in inspector and runtime

Author: hugoymh

Runtime/Scripts/Effects/Gradient2.cs

@@ -475,7 +475,7 @@ List<float> FindStops(float zoomOffset, Rect bounds, List<float> stops)
             var startBoundary = zoomOffset - offset;
             var endBoundary = (1 - zoomOffset) - offset;
 
-            if (_colorKeys == null) _colorKeys = EffectGradient.colorKeys;
+            _colorKeys = EffectGradient.colorKeys;
 
             foreach (var color in _colorKeys)
             {
@@ -485,7 +485,7 @@ List<float> FindStops(float zoomOffset, Rect bounds, List<float> stops)
                     stops.Add((color.time - startBoundary) * Zoom);
             }
 
-            if (_alphaKeys == null) _alphaKeys = _effectGradient.alphaKeys;
+            _alphaKeys = _effectGradient.alphaKeys;
 
             foreach (var alpha in _alphaKeys)
             {

Runtime/Scripts/Layout/CardUI/2D Cards/CardPopup2D.cs

@@ -57,8 +57,12 @@ void Update()
         {
             isFalling = false;
             rbody.useGravity = false;
-            rbody.velocity = Vector3.zero;
-            transform.position = new Vector3(0, 8, startZPos);
+#if UNITY_6000_0_OR_NEWER
+                rbody.linearVelocity = Vector3.zero;
+#else
+                rbody.velocity = Vector3.zero;
+#endif
+                transform.position = new Vector3(0, 8, startZPos);
             if (singleScene)
             {
                 CardEnter();