fix stamina modification bug

Java-Knight/src/main/java/org/project/entity/Entity.java

@@ -94,12 +94,13 @@ public abstract class Entity implements IDamageable, IHealable, IDefendable, IFi
                 Stamina = MaxStamina;
             }
         }
-
+        else {
             Stamina -= amount;
             if (Stamina < 0) {
                 Stamina = 0;
             }
         }
+    }
 
     public EntityState GetState() { return State; }