Game JAm

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Playercontroller : MonoBehaviour
{

    public float speed;
    private float jumpforce = 10.0f;
    public float jumppower = 10.0f;
    private Rigidbody2D rb2d;
    private Vector2 Jump;
    private bool groundcheck = true;

    // Use this for initialization
    void Start()
    {
        rb2d = GetComponent<Rigidbody2D>();
        Jump = new Vector2(0.0f, jumppower);
    }

    // Update is called once per frame
    void FixedUpdate ()
    {

        float moveHorizontal = Input.GetAxis("Horizontal");

        Vector2 movement = new Vector2(moveHorizontal, 0);

        if ((Input.GetKeyDown(KeyCode.Space) && groundcheck == true)|| (Input.GetAxis("Vertical") > 0 && groundcheck == true))
        {
            groundcheck = false;
            jump();
        }

        if (rb2d.velocity.y == 0)
        {
            groundcheck = true;
        }
        rb2d.AddForce(movement * speed);

    }

    private void jump()
    {
        print("jump");
        rb2d.AddForce(Jump * jumpforce);
    }

}