Revert "修改为按下即召唤"

This reverts commit 06d65df582e7f34ecdf1c1a235c581772f2dde15.

ActionTowerDefense/Assets/Scripts/Characters/PlayerController.cs

@@ -539,7 +539,7 @@ public class PlayerController : MoveCharacter
             return false;
 
         }
-        if (btnEastPress || btnWestPress || btnSouthPress)
+        if (isBtnEastUp || isBtnWestUp || isBtnSouthUp)
         {
             if (cacheSummonTime >= 0 && conductTime <= totalCacheSummonTime)
             {