Dashing

Unity Engine
,
1

I’m using Blackthornprod’s dashing script and it works for him but not for me. I get 5 different errors.

CS9641: ‘else’ cannot start a statement
CS1003: Syntax error, ‘(’ expected
CS1524: Invalid expression term ‘else’
CS1026: ) expected
CS1002: ; expected

I dont know how to fix them please help

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

public class PlayerDash : MonoBehaviour
{
    private Rigidbody2D rb;
    public float dashSpeed;
    private float dashTime;
    public float startDashTime;
    private int direction;

    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        dashTime = startDashTime;
    }

    void Update()
    {
        if(direction == 0)
        {
            if(Input.GetKeyDown(KeyCode.LeftShift))
            {
                if(moveInput < 0)
                {
                    direction = 1;
                }
                else if (moveInput > 0)
                {
                    direction = 2;
                }
            }
            else
            {
                if(dashTime <= 0)
                {
                    direction = 0;
                    dashTime = startDashTime;
                    rb.velocity = Vector2.zero;
                }
            }
            else
            {
               dashTime -= Time.deltaTime;

               if(direction == 1)
               {
                   rb.velocity = Vector2.left * dashSpeed;
               }
               else if (direction == 2)
               {
                   rb.velocity = Vector2.right * dashSpeed;
               }
            }
        }   
    }
}
2

Look up if/else statements in C# to learn how to use them.

You’ve added an else which happens if the “if” condition is false but you can’t add another one because that makes no logical sense.

3

You absolutely MUST learn how to fix errors, or else just stop programming.

Fortunately it is easy! Here is 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.

If you are planning on monkey-hammer-banging tutorial code in, keep this in mind:

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!