Simplify movement code

Assets/Scripts/PlayerControl.cs

@@ -117,39 +117,27 @@ public class PlayerControl : MonoBehaviour
         }
         else
         {
+          bool grounded = isGrounded();
+
           velocity = body2D.velocity;
           if (Input.GetKey(keyCodes[(int)Keys.Right]))
           {
-              //normalizedHorizontalSpeed = 1;
-              //if (transform.localScale.x < 0f)
-              //    transform.localScale = new Vector3(-transform.localScale.x, transform.localScale.y, transform.localScale.z);
-
-
-              //go right:
-              velocity = new Vector2(runSpeed,velocity.y);
-
-              //if (_controller.isGrounded)
+              velocity.x = runSpeed;
           }
           else if (Input.GetKey(keyCodes[(int)Keys.Left]))
           {
-              //normalizedHorizontalSpeed = -1;
-              //if (transform.localScale.x > 0f)
-              //    transform.localScale = new Vector3(-transform.localScale.x, transform.localScale.y, transform.localScale.z);
-
-              velocity = new Vector2(-runSpeed, velocity.y);
-              //if (_controller.isGrounded)
+              velocity.x = -runSpeed;
           }
 
           if (Input.GetKey (keyCodes[(int)Keys.Jump]))
           {
               //to avoid DOUBLE JUMP
-              if (isGrounded())
+              if (grounded)
               {
-                  velocity = new Vector2(velocity.x, targetJumpHeight);
+                  velocity.y = targetJumpHeight;
               }
           }
 
-
           // apply horizontal speed smoothing it
           var smoothedMovementFactor = isGrounded() ? groundDamping : inAirDamping; // how fast do we change direction?
           velocity.x = Mathf.Lerp(velocity.x,0, Time.deltaTime * smoothedMovementFactor);