Bug error CS1001: Identifier expected

I want to make a script to toggle the garvity. the error is apparently on 36,34.
this is my code:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class GravityChange : MonoBehaviour
6. {
7.     private float directionX = 0;
8.     private float directionY = -9.81f;
9.     public bool GravityInverted = false;
10.  
11.     // Start is called before the first frame update
12.     void Start()
13.     {
14.      
15.     }
16.  
17.     // Update is called once per frame
18.     void Update()
19.     {
20.         if (Input.GetKeyDown(Space) && GravityInverted = false)
21.         {
22.             GravityInverted = true;
23.         }
24.  
25.         if (Input.GetKeyDown(Space) && GravityInverted = true)
26.         {
27.             GravityInverted = false;
28.         }
29.  
30.         if (GravityInverted = true)
31.         {
32.             InvertGravity(0f, 9.81f);
33.         }
34.     }
35.  
36.     void InvertGravity(directionX, directionY)
37.     {
38.         Physics.gravity = new Vector3(directionX, directionY, 0);
39.     }
40.  
41.  
42. }
43.  

can anyone help?

 

You can fix your own typing mistakes. Here's how:

Remember: NOBODY here memorizes error codes. That's not a thing. 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.

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)

Always start with the FIRST error in the console window, as sometimes that error causes or compounds some or all of the subsequent errors. Often the error will be immediately prior to the indicated line, so make sure to check there as well.

Look in the documentation. Every API you attempt to use is probably documented somewhere. Are you using it correctly? Are you spelling it correctly? Are you structuring the syntax correctly? Look for examples!

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.

 

If you look at line 36, you're declaring a method with parameters. If you take a look at another method declaration that also has parameters, I think you'll figure out what the issue is.

Your hint is how you declare your parameters is incorrect.

 

On top of what was already said, you are also assigning a value to GravityInverted when you really want to compare its value to true or false (= vs ==). While we are at it, you never have to compare booleans to true or false, as booleans themselves are already true or false.

And take a look at 'GetKeyDown(Space)' again.

 

Wow yeah, OP, you will need to step your accuracy up a lot or this will be a constant struggle.

Be sure you have intellisense helping you.



This may help you with intellisense and possibly other Visual Studio integration problems:

Sometimes the fix is as simple as doing Assets -> Open C# Project from Unity. Other times it requires more.

Other times it requires you also nuke the userprefs and .vsconfig and other crufty low-value high-hassle files that Visual Studio tends to slowly damage over time, then try the above trick.

Barring all that, move on to other ideas:

https://forum.unity.com/threads/intellisense-not-working-with-visual-studio-fix.836599/

Also, try update the package inside of Unity: Window -> Package Manager -> Search for Visual Studio Editor -> Press the Update button

Depending on flavor and version of Visual Studio, it may also have an installation step that you perform within the actual Visual Studio. This step seems finicky at best and may require multiple openings of VS before it comes up.

Update: The VSCode extension has been deprecated and abandoned:

https://forum.unity.com/threads/update-on-the-visual-studio-code-package.1302621/

Update: the VSCode integration is back... maybe!?

https://forum.unity.com/threads/microsoft-previews-unity-extension-for-visual-studio-code.1468913/

There may be a community fork available that is receiving updates.

https://github.com/Chizaruu/com.tsk.ide.vscode

Also, this: https://forum.unity.com/threads/no-suggestions-in-vscode.955197/#post-6227874

Recently (July 2023) I worked on a Windows11 system that required a Microsoft component to be installed from within Visual Studio before it would work properly with all the OTHER software installed under Unity. I have no documentation on that process as I have only seen it once and it surprised me as well.






Tutorials and example code are great, but keep this in mind to maximize your success and minimize your frustration:

How to do tutorials properly, two (2) simple steps to success:

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 step must be taken, every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly, literally NOTHING can be omitted or skipped.

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 your error. Google is your friend here. Do NOT continue until you fix your error. Your 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. If you want to learn, you MUST do Step 2.

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!

Finally, when you have errors, don't post here... just go fix your errors! See my first post above.