Keep Jump Height

In my Script i'm using a jump Force, the reason being is because i don't know any other way of jumping.

So sometimes when the Object Jumps it lowers its jump height when i move, any way of going around this?

this is my code

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. public class SimpleController : MonoBehaviour {
4.  
5. [HideInInspector] public bool jump = false;
6.  
7.  
8. public float Speed = 0f;
9. public Transform groundCheck;
10. public float JumpForce;
11.  
12.  
13. private float move = 0f;
14. private bool grounded = false;
15. private Rigidbody2D rb2d;
16.     void Awake () {
17.         rb2d = GetComponent<Rigidbody2D>();
18.     }
19.     void Update ()
20.     {
21.         grounded = Physics2D.Linecast(transform.position, groundCheck.position, 1 << LayerMask.NameToLayer("Ground"));
22.  
23.  
24.         transform.eulerAngles=new Vector3(0,transform.eulerAngles.x,transform.eulerAngles.y); // Lock Rotations
25.  
26.         if(grounded)
27.         {
28.             jump = true;
29.         }
30.     }
31.     void FixedUpdate () {
32.         move = Input.GetAxis ("Horizontal");
33.         GetComponent<Rigidbody2D>().velocity = new Vector2 (move * Speed, GetComponent<Rigidbody2D>().velocity.y);
34.         if (jump)
35.         {
36.             rb2d.AddForce (new Vector2 (rb2d.velocity.x,JumpForce));
37.             jump = false;
38.         }
39.     }
40. }

 

Trying to Recreate this type of jumping

Skip to 4:10

 

It's problem with addforce, the longer your Physic2D linecast check the layermask, the bigger jump force, when u move your player, time check will be shorter and the force is lower. u can jump by add the velocity directly to your player like :
this.rigidbody.velocity=new Vector2();

 

I would avoid using Physics for platforming. It's somewhat hard to get it to do what you want it to. But there is a great tutorial for a simple and effective platforming system here: https://www.youtube.com/playlist?list=PLFt_AvWsXl0f0hqURlhyIoAabKPgRsqjz

With this tutorials, system you set the jump height and jump duration which is a bit more intuitive for designing a game.