Fixed movement rules

Assets/Scripts/Character.cs

@@ -26,7 +26,7 @@ public abstract class Character : MonoBehaviour
     protected bool _isFalling;
     protected bool _facingRight = true;
 
-
+    protected bool isCanClimbUp=false;
     protected bool isAllowVertical = true;
     protected bool isAllowRight = true;
     protected bool isAllowLeft = true;
@@ -73,17 +73,25 @@ public abstract class Character : MonoBehaviour
 
             if (_isOnLadder)
             {
+                isCanClimbUp=CanClimbUp();
+
                 float ladderXCenterDistance = Mathf.Abs(transform.position.x - block.transform.position.x);
 
                 float v_movement = inputVertical;
-               
+                isAllowVertical = (ladderXCenterDistance < 0.3f);
+                if(!isCanClimbUp&& v_movement>0)
+                {
+                    v_movement=0;
+                }
 
-                isAllowVertical = (ladderXCenterDistance < 0.3f) || (CanClimbUp() && v_movement>0);
                 if (isAllowVertical)
                 {
                     SetClimbingAnimation(v_movement != 0);
                     _body.velocity = new Vector2(h_movement * _movementSpeed, v_movement * _movementSpeed);
                 }
+                else{
+                     _body.velocity = new Vector2(h_movement * _movementSpeed, _body.velocity.y);
+                }
             }
             else
             {

Assets/Scripts/EnemyAI.cs

@@ -20,18 +20,22 @@ public class EnemyAI : Character
         float horizontal = 0;
         float vertical = 0;
 
-        Vector2 directionToPlayer = Player.Instance.transform.position - transform.position;
+        Vector2 directionToPlayer = Player.Instance.transform.position - transform.position;        
         directionToPlayer.Normalize();
 
+        float verticalDistance = Player.Instance.transform.position.y - transform.position.y;
+
         if (Mathf.Abs(Player.Instance.transform.position.y - transform.position.y) < 0.1f)
         {
             horizontal = directionToPlayer.x;
         }
-        else    if (isAllowVertical)
+        else if (verticalDistance>0 && isCanClimbUp && isAllowVertical)
         {
-            float verticalDistance = Player.Instance.transform.position.y - transform.position.y;
-            float verticalDirection = Mathf.Sign(verticalDistance);
-            vertical = verticalDirection;
+            vertical =VerticalMove(verticalDistance);
+        }
+        else if (verticalDistance<0 && isAllowVertical)
+        {
+           vertical =VerticalMove(verticalDistance);
         }
         else
         {
@@ -48,4 +52,10 @@ public class EnemyAI : Character
         { vertical = -1; }
         base.MoveTo(horizontal, vertical);
     }
+
+    private float VerticalMove(float verticalDistance)
+    {
+        float verticalDirection = Mathf.Sign(verticalDistance);
+        return verticalDirection;
+    }
 }