我正在开发一个2D平台（使用Unity和新的输入系统），并试图实现一个破折号（类似于空心骑士/塞莱斯特）。破折号应该推动玩家水平向前（取决于玩家面对的位置），只能在跳跃时激活。
然而，Dash似乎并没有在游戏测试中发挥作用。
当我尝试跳跃和短跑时，玩家只以与跑步速度相同的速度水平向前移动。协程中的其他一切似乎都工作正常（包括TrailRenderer）。
冲刺时感觉好像没有增加速度。
这是我的代码：

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

public class PlayerMovement : MonoBehaviour
{

    //drag and drop the component to the script in the inspector
    public Rigidbody2D rb;

    public Transform groundCheck;
    public LayerMask groundLayer;
    public Animator myAnimator;
    public ParticleSystem dust;
    
    //this will make the public float accessible in the inspector
    private float horizontal;
    public float speed = 8f;
    public float jumpingPower = 16f;
    private bool isFacingRight = true;
    
    //coyote time
    public float coyoteTime = 0.1f;
    private float coyoteTimeCounter;
    
    //Dash goes here
    bool canDash = true;
    bool isDashing;
    [SerializeField] float dashForce = 30f;
    [SerializeField] float dashTime = 0.2f; 
    [SerializeField] float dashCooldown = 1f;
    [SerializeField] TrailRenderer dashTrail;
    //Dash Ends here
    
    void Start()
    {
        canDash = true;
    
    }
    
    
    void Update()
    {
        if (IsGrounded())
        {
            coyoteTimeCounter = coyoteTime;
        }
        else
        {
            coyoteTimeCounter -= Time.deltaTime;
        }
    
        if (!isFacingRight && horizontal > 0f)
        {
            Flip();
        }
        else if (isFacingRight && horizontal < 0f)
        {
            Flip();
        }
    
        if (isDashing)
        {
            return;
        }
    
        //Falling();
    
    }
    
    private void FixedUpdate()
    {
        rb.velocity = new Vector2(horizontal * speed, rb.velocity.y);
    
        if (isDashing)
        {
            return;
        }
    }
    
    
    public void Move(InputAction.CallbackContext context)
    {
        horizontal = context.ReadValue<Vector2>().x;
    
        if (Mathf.Abs(horizontal) > 0f)
        {
            myAnimator.SetBool("isRunning", true);
        }
        else
        {
            myAnimator.SetBool("isRunning", false);
        }
    }
    
    
    public void Jump(InputAction.CallbackContext context)
    {
        
        if (context.performed && coyoteTimeCounter > 0f)
        {
            CreateDust();
            rb.velocity = new Vector2(rb.velocity.x, jumpingPower);
        }
    
        if (context.canceled && rb.velocity.y > 0f)
        {
            rb.velocity = new Vector2(rb.velocity.x, rb.velocity.y * 0.5f);
    
            coyoteTimeCounter = 0f;
        }
    }
    
    
    private bool IsGrounded()
    {
        return Physics2D.OverlapCircle(groundCheck.position, 0.5f, groundLayer);
    }
    
    private void Flip()
    {
        CreateDust();
        isFacingRight = !isFacingRight;
        Vector3 localScale = transform.localScale;
        localScale.x *= -1f;
        transform.localScale = localScale;
    }
    
    
    public void Dash(InputAction.CallbackContext context)
    {
        if (context.performed && canDash && !IsGrounded())
        {
            StartCoroutine(Dash());
        }
    }
    
    private IEnumerator Dash()
    {
        canDash = false;
        isDashing = true;
        float originalGravity = rb.gravityScale;
        rb.gravityScale = 0f;
        rb.velocity = new Vector2(transform.localScale.x * dashForce, 0f); //issue? feels like the player isnt speeding up   
        dashTrail.emitting = true;
        yield return new WaitForSeconds(dashTime);
        dashTrail.emitting = false;
        rb.gravityScale = originalGravity;
        isDashing = false;
        yield return new WaitForSeconds (dashCooldown);
        canDash = true;
    }
    
    void CreateDust()
    {
        dust.Play();
    }

}

我猜错误是由于协程中的这一行，但我不确定用什么来替换它：

rb.velocity = new Vector2(transform.localScale.x * dashForce, 0f);

希望这是有意义的。这是我第一次在Unity项目上工作，我正在Udemy和Youtube上学习教程-但我似乎找不到这个问题的答案。任何帮助都很感激！