[part 1] my character can’t jump after adding animation

[adam]

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My character assets can´t jump after adding walking and jumping animation and how to prevent jumping checkbox automatically checked in animation->parameter menu . here’s my code:

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

public class PlayerController : MonoBehaviour
{
    [Header("Horizontal Movement Setting")]
    [SerializeField] private float walkSpeed = 1;

    [Header("Ground Check Setting")]
    [SerializeField] private Transform groundCheckPoint;
    [SerializeField] private float groundCheckY = 0.2f;
    [SerializeField] private float groundCheckX = 0.5f;
    [SerializeField] private LayerMask whatIsGround;
    [SerializeField] private float jumpForce = 45;

    private float xAxis;
    private Rigidbody2D rb;
    private bool isGrounded;
    private Animator anim;

    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        anim = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        GetInputs();
        Move();
        Jump();
        UpdateAnimations();
    }

    void GetInputs()
    {
        xAxis = Input.GetAxisRaw("Horizontal");
    }

    private void Move()
    {
        rb.linearVelocity = new Vector2(walkSpeed * xAxis, rb.linearVelocity.y);
    }

    private void Jump()
    {
        if (Input.GetButtonUp("Jump") && rb.linearVelocity.y > 0)
        {
            rb.linearVelocity = new Vector2(rb.linearVelocity.x, 0);
        }

        if (Input.GetButtonDown("Jump") && Grounded())
        {
            Debug.Log("Jump button pressed and player is grounded");
            rb.linearVelocity = new Vector3(rb.linearVelocity.x, jumpForce);
        }
    }

    private void UpdateAnimations()
    {
        anim.SetBool("Walking", rb.linearVelocity.x != 0 && Grounded());
        anim.SetBool("Jumping", !Grounded());
    }

    public bool Grounded()
    {
        bool groundCheck1 = Physics2D.Raycast(groundCheckPoint.position, Vector2.down, groundCheckY, whatIsGround);
        bool groundCheck2 = Physics2D.Raycast(groundCheckPoint.position + new Vector3(groundCheckX, 0, 0), Vector2.down, groundCheckY, whatIsGround);
        bool groundCheck3 = Physics2D.Raycast(groundCheckPoint.position + new Vector3(-groundCheckX, 0, 0), Vector2.down, groundCheckY, whatIsGround);

        return groundCheck1 || groundCheck2 || groundCheck3;
    }
}

or you can see here https://pastebin.com/17GqTCd8 and videos about my error in unity3d https://streamable.com/oy5i5e

[Ser Apustaja]

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It looks like you’re having issues with the jumping functionality in your Unity character controller. Let’s break down potential problems and solutions based on your code.

1. Jumping Logic

In your Jump() method, you have the following lines:

if (Input.GetButtonUp("Jump") && rb.linearVelocity.y > 0)
{
    rb.linearVelocity = new Vector2(rb.linearVelocity.x, 0);
}

This line resets the vertical velocity to 0 when the jump button is released, but only if the player is already moving upwards. This can lead to unexpected behavior, as it essentially cancels the jump prematurely. You might want to remove this section entirely, or adjust it to only affect the jump if the player is falling or has reached the top of the jump.

2. Jumping Condition

The condition for jumping is as follows:

if (Input.GetButtonDown("Jump") && Grounded())

Make sure that your Grounded() method is correctly identifying when the player is on the ground. You can debug the Grounded() method by logging the result to ensure it’s returning true when the player is actually touching the ground.

3. Animator Parameters

If your jump animation is not being triggered correctly, check that your Animator parameters "Jumping" and "Walking" are set up correctly. Make sure that the transitions in your Animator controller are properly configured to respond when these parameters change.

4. Preventing Jump Checkbox in Animator

For your second question regarding the “Jumping” checkbox automatically being checked in the Animator’s parameters menu, this could happen if your jump animation is set to be a looping animation or if it’s set to automatically transition based on the conditions you’ve set. Make sure that your jump animation is not set to loop unless that is your intention.

Updated Jump Logic Example

Here’s an example of how you might restructure your Jump() method:

private void Jump()
{
    if (Input.GetButtonDown("Jump") && Grounded())
    {
        Debug.Log("Jump button pressed and player is grounded");
        rb.velocity = new Vector2(rb.velocity.x, jumpForce);
    }
}

Full Example of PlayerController

Here’s a combined revised version of your PlayerController class:

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

public class PlayerController : MonoBehaviour
{
    [Header("Horizontal Movement Setting")]
    [SerializeField] private float walkSpeed = 1;

    [Header("Ground Check Setting")]
    [SerializeField] private Transform groundCheckPoint;
    [SerializeField] private float groundCheckY = 0.2f;
    [SerializeField] private float groundCheckX = 0.5f;
    [SerializeField] private LayerMask whatIsGround;
    [SerializeField] private float jumpForce = 45;

    private float xAxis;
    private Rigidbody2D rb;
    private Animator anim;

    void Start()
    {
        rb = GetComponent();
        anim = GetComponent();
    }

    void Update()
    {
        GetInputs();
        Move();
        Jump();
        UpdateAnimations();
    }

    void GetInputs()
    {
        xAxis = Input.GetAxisRaw("Horizontal");
    }

    private void Move()
    {
        rb.velocity = new Vector2(walkSpeed * xAxis, rb.velocity.y);
    }

    private void Jump()
    {
        if (Input.GetButtonDown("Jump") && Grounded())
        {
            Debug.Log("Jump button pressed and player is grounded");
            rb.velocity = new Vector2(rb.velocity.x, jumpForce);
        }
    }

    private void UpdateAnimations()
    {
        anim.SetBool("Walking", rb.velocity.x != 0 && Grounded());
        anim.SetBool("Jumping", !Grounded());
    }

    public bool Grounded()
    {
        bool groundCheck1 = Physics2D.Raycast(groundCheckPoint.position, Vector2.down, groundCheckY, whatIsGround);
        bool groundCheck2 = Physics2D.Raycast(groundCheckPoint.position + new Vector3(groundCheckX, 0, 0), Vector2.down, groundCheckY, whatIsGround);
        bool groundCheck3 = Physics2D.Raycast(groundCheckPoint.position + new Vector3(-groundCheckX, 0, 0), Vector2.down, groundCheckY, whatIsGround);

        return groundCheck1 || groundCheck2 || groundCheck3;
    }
}

Conclusion

Make sure to test the adjustments made in the jumping logic and check the Animator settings. If the problem persists, consider debugging the ground check logic and confirming that the Rigidbody2D component and collider settings are configured correctly.

If you have further questions or need more assistance, feel free to ask!

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