my bean can no jump wtf

Unity Engine
, ,
1

Here you have my code, I followed a lot of tutorials, I wrote everything but my bean doesn’t jump.

For everyone, I’m new in Unity and c++

Here you have the code.

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

public class salto : MonoBehaviour
{
    public bool canJump;

    Rigidbody2D rb;

    public float empuje = 10000000f;
   
    void Start()
    {
        rb = gameObject.GetComponent<Rigidbody2D>();
    }
   
    void FixUpdate()
    {

        if (Input.GetKeyDown(KeyCode.W) && canJump){

            Jump();

        }

    }

    private void Jump(){

        rb.AddForce(new Vector2(0, transform.position.y + empuje), ForceMode2D.Impulse);

    }

    void OnCollisionEnter2D(Collision2D other){

        if (other.gameObject.CompareTag("Ground")){

            canJump = true;

        }

        else{

            canJump = false;

        }

    }
}
2

You need to be careful when typing. You put “FixUpdate”. Unity only calls a method called “FixedUpdate”.

1 Like
3

In addition to misspelling FixedUpdate(), you are also using Input.GetKeyDown from within FixedUpdate(), which is clearly against documented intended use of GetKeyDown. As a consequence, you will certainly miss import and have glitchy controls.

Instead of “following a lot of tutorials,” pick one at a time, and pay attention to this:

How to do tutorials properly:

Tutorials are a GREAT idea. Tutorials should be used this way:

Step 1. Follow the tutorial and do every single step of the tutorial 100% precisely the way it is shown. Even the slightest deviation (even a single character!) generally ends in disaster. That’s how software engineering works. Every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly. Fortunately this is the easiest part to get right. Be a robot. Don’t make any mistakes. BE PERFECT IN EVERYTHING YOU DO HERE.

If you get any errors, learn how to read the error code and fix it. Google is your friend here. Do NOT continue until you fix the error. The error will probably be somewhere near the parenthesis numbers (line and character position) in the file. It is almost CERTAINLY your typo causing the error, so look again and fix it.

Step 2. Go back and work through every part of the tutorial again, and this time explain it to your doggie. See how I am doing that in my avatar picture? If you have no dog, explain it to your house plant. If you are unable to explain any part of it, STOP. DO NOT PROCEED. Now go learn how that part works. Read the documentation on the functions involved. Go back to the tutorial and try to figure out WHY they did that. This is the part that takes a LOT of time when you are new. It might take days or weeks to work through a single 5-minute tutorial. Stick with it. You will learn.

Step 2 is the part everybody seems to miss. Without Step 2 you are simply a code-typing monkey and outside of the specific tutorial you did, you will be completely lost.

Of course, all this presupposes no errors in the tutorial. For certain tutorial makers (like Unity, Brackeys, Imphenzia, Sebastian Lague) this is usually the case. For some other less-well-known content creators, this is less true. Read the comments on the video: did anyone have issues like you did? If there’s an error, you will NEVER be the first guy to find it.

Beyond that, Step 3, 4, 5 and 6 become easy because you already understand!

1 Like
4

oh waw, thank you, I really appreciate your answer and now my code works perfectly and my bean jumps now. Special thanks to the ent of how to follow a tutorial. Really thank you.

1 Like