Make player jump when space button is pressed?

I want to make my player jump from one block to another when space button is pressed. When the button is pressed player moves x direction and y direction to make the feel of jumping;

 using UnityEngine;
 using System.Collections;
 
 public class Player : MonoBehaviour {
 
     public float jumpForce = 6.0f;
     private bool jump;
 
     void Update(){
         if (Input.GetKeyDown (KeyCode.Space)) {
         
             jump = true;
 
         }
     }
 
     void FixedUpdate(){
     
         if (jump) {
             Jump();
             jump = false;
         }
     
     }
     void Jump(){
 
         Vector2 jumping = rigidbody2D.velocity;
         jumping.y = transform.position.y + jumpForce;
         jumping.x = transform.position.x + jumpForce;
         rigidbody2D.velocity = jumping;
     }
 
 
 }