Need Help on this

Unity Engine
1

What is wrong with my code??

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerMovement : MonoBehaviour
{}
private Rigidbody2D rb;
// Start is called before the first frame update
private void Start()
{

rb = GetComponent();
}
// Update is called once per frame
private void Update()
{
float dirX = Input.GetAxis(“Horizontal”);
rb.velocity = new Vector2(dirX * 87f, rb velocity.y);

if (Input.GetButtonDown(“Jump”))
{
rb.velocity = new Vector2(rb.velocity.x, 14f);
}
}

2

Firstly, please use code-tags when posting code and not plain text.

Secondly, please try to put some effort into describing what you’re doing, what you’re expecting and what’s going wrong. Compiler error? What’s the full error it outputs? Something not moving correct? Post a video or image or state as much etc.

EDIT: At a guess, this is a post for the scripting forum because it’s not a 2D specific post. Looks to me like you’re confused with C# because after defining your class you’ve got two empty “{ }” braces. These should surround the code in the class, not preceed it.

3

It is clear you are monkey-hammer-banging code in from some tutorial, and you have made a whole lot of typos.

Unfortunately without formatting I can’t even tell you what line the first error is on, but it’s pretty obvious looking at the code.

Fortunately you can actually fix ALL of those errors all by yourself by learning how to read errors properly. It’s easy and it’s not optional if you want to do Unity coding. Here’s how:

Remember: NOBODY memorizes error codes. The error code is absolutely the least useful part of the error. It serves no purpose at all. Forget the error code. Put it out of your mind.

The complete error message contains everything you need to know to fix the error yourself.

Always start with the FIRST error in the console window, as sometimes that error causes or compounds some or all of the subsequent errors.

The important parts of the error message are:

  • the description of the error itself (google this; you are NEVER the first one!)
  • the file it occurred in (critical!)
  • the line number and character position (the two numbers in parentheses)
  • also possibly useful is the stack trace (all the lines of text in the lower console window)

All of that information is in the actual error message and you must pay attention to it. Learn how to identify it instantly so you don’t have to stop your progress and fiddle around with the forum.

This may save you a LOT of time if you are going to monkey-hammer-bang code in:

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

Thank You for that!

5

Gonna have to be a bit less judgemental I think, people aren’t all on your level.

1 Like