What is wrong here?

Questions & Answers
1

I am trying to make a script to move a ball(the main character) and he moves to right and left without problems or errors, but dont jump. Here is the code:

using UnityEngine;
using System.Collections;

    public class MovementScript: MonoBehaviour {
    	//Variables
    
    	public GameObject player;
    	public Rigidbody2D rb2d;
    
    	public float velocity= 1;
    	public float jumpForce= 3;
    
    
    	// Use this for initialization
    	void Start () {
    		rb2d = GetComponent<Rigidbody2D>();
    	}
    	
    	// Update is called once per frame
    	void Update () {
    
    	}
    	void FixedUpdate(){
    		Movement();
    	}
    
    	//Movement
    	void Movement(){
    		//Jump
    		if(Input.GetKey("space")){
    			rb2d.AddForce(Vector2.up * jumpForce);
    		}
    		//Move to left
    		if(Input.GetKey("a")){
    			rb2d.AddForce(Vector2.left * velocity);
    		}
    		//Move to right
    		if(Input.GetKey("d")){
    			rb2d.AddForce(Vector2.right * velocity);
    		}
    	}
    }
3

You need to increase the jump force by factor 10 or more. Try setting it to 30. Your script works on my machine when the force is that great.

2

@mega_rodrigo In your RigidBody component, is your Kinemetic option unchecked? I’m guessing that could be the problem if it is checked.