Pogo Help 1032021 | Official Unity Discord | Page 1

lucid galleon Oct 4, 2021, 1:54 AM

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What's your code, @torn basin ?

torn basin Oct 4, 2021, 1:55 AM

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give me a second

lucid galleon Oct 4, 2021, 1:55 AM

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Remember to post it here by using three `'s

torn basin Oct 4, 2021, 1:56 AM

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using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    //variable you can change in Inspector
    public float sidewaysForce = 400f;
    //makes player's rigidbody "rb"
    public Rigidbody rb;

    void Update()
    {
        //right movement
        if (Input.GetKey("d"))
        {
            rb.AddForce(sidewaysForce * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
        }

        //left movement
        if (Input.GetKey("a"))
        {
            rb.AddForce(-sidewaysForce * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
        }

    }
}

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it adds a force to the rigidbody if u press a or d (i made a variable for that that I can change in inspector)

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and then did all the Time.delta stuff that I don't really understand

lucid galleon Oct 4, 2021, 2:07 AM

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Sorry for waiting

torn basin Oct 4, 2021, 2:08 AM

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np

lucid galleon Oct 4, 2021, 2:10 AM

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Hmm...

torn basin Oct 4, 2021, 2:11 AM

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i think a slippery floor would fix it, but more problems would come up later

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not sure how to do player movement any differently though

lucid galleon Oct 4, 2021, 2:11 AM

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No, hmm

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You should use a characterController

torn basin Oct 4, 2021, 2:11 AM

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I am very new to code

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What's a CharacterController?

lucid galleon Oct 4, 2021, 2:12 AM

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https://docs.unity3d.com/ScriptReference/CharacterController.html

torn basin Oct 4, 2021, 2:12 AM

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I'm trying not to just ctrl+c and ctrl+v

broken trail Oct 4, 2021, 2:12 AM

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It's fine to use physics, but there are a few things you need to remember:
add forces in FixedUpdate, as that is when unity simulates physics.

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Input shout still be in regular update.

torn basin Oct 4, 2021, 2:13 AM

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ah so change Update to FixedUpdate?

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wait what

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I am confused

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Sorry

broken trail Oct 4, 2021, 2:14 AM

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And you don't need to multiply force by delta time. You could(considering it's in fixed update, deltaTime = fixedDeltaTime), but don't have to.

lucid galleon Oct 4, 2021, 2:14 AM

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Oh wait, you want physics

broken trail Oct 4, 2021, 2:14 AM

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torn basin ah so change Update to FixedUpdate?

Yes. Any kind of physics manipulations should be in FixedUpdate.(not really, but as a beginner you should remember that first)

torn basin Oct 4, 2021, 2:14 AM

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give me a sec

lucid galleon Oct 4, 2021, 2:15 AM

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IN the rigidbody settings, click freezeRotation.x

broken trail Oct 4, 2021, 2:15 AM

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What was the problem anyways?

lucid galleon Oct 4, 2021, 2:15 AM

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Also z, then re-enable it if you wanna do like Ragdolls

torn basin Oct 4, 2021, 2:18 AM

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can you have functions in functions?

lucid galleon Oct 4, 2021, 2:18 AM

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No, you can't

broken trail Oct 4, 2021, 2:18 AM

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torn basin can you have functions in functions?

Technically you can, but you really shouldn't have a reason to do that as a beginner.

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it's called local functions.

lucid galleon Oct 4, 2021, 2:18 AM

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Ohhh I see

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Wow, I learned something new

torn basin Oct 4, 2021, 2:19 AM

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i am very confused how i add the forces in FixedUpdate but inputs in normal Update

broken trail Oct 4, 2021, 2:19 AM

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Yeah. I use them like once or twice in a year.😅

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https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/local-functions

broken trail Oct 4, 2021, 2:20 AM

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torn basin i am very confused how i add the forces in FixedUpdate but inputs in normal Upda...

You cache the input values in update as a class variable and use it in fixed update.

torn basin Oct 4, 2021, 2:27 AM

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I am so confused

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I am sorry

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using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    //variable you can change in Inspector
    public float sidewaysForce = 0f;
    //makes player's rigidbody "rb"
    public Rigidbody rb;

    void Update()
    {
        //if d is pressed, ---
        if (Input.GetKey("d"))
        {
            moveRight();
        }

        //if a is pressed, ---
        if (Input.GetKey("a"))
        {
            moveLeft();
        }

    }

    void FixedUpdate()
    {
       
    }
}

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i got this far

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I think thats what you mean?

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I dont really know the technical terms

broken trail Oct 4, 2021, 2:35 AM

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I'm not sure what moveRight and moveLeft are. And you don't have anything in fixed update. You could just move the AddForce calls to FixedUpdate as they are.

torn basin Oct 4, 2021, 2:37 AM

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I thought like

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idk

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but how do I link the "if _ is pressed" in the update to the AddForces

broken trail Oct 4, 2021, 2:39 AM

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There are a few ways, but think logically. What type do you check in an if statement?

torn basin Oct 4, 2021, 2:39 AM

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I cant think logically

broken trail Oct 4, 2021, 2:39 AM

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Let's say Input.GetKey("d"). What does it return?

torn basin Oct 4, 2021, 2:40 AM

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true or false?

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I think

broken trail Oct 4, 2021, 2:40 AM

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torn basin true or false?

Okay, what variable type can hold these values?

torn basin Oct 4, 2021, 2:41 AM

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bools?

broken trail Oct 4, 2021, 2:41 AM

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yes

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So you can store these values in a bool

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and use them in FixedUpdate

torn basin Oct 4, 2021, 2:42 AM

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OH

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i think i get it

broken trail Oct 4, 2021, 2:42 AM

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That's what we refer to when we say "cache something" usually.

coarse stag Oct 4, 2021, 2:43 AM

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https://help.vertx.xyz/?page=programming/common-input-issues/input-in-fixed-update example.
(Though you should be able to use Input.GetKey in fixedupdate because it's a continuous state-based query and not an instantaneous input it's probably advisable to keep all input logic in Update for consistency's sake)

#Pogo Help 1032021