Untitled

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

public class PlayerMovement : MonoBehaviour
{
    private float horizontal;
    private float speed = 8f;
    private float jumpingPower = 16f;
    private bool isFacingRight = true;

    private bool isJumping;
    private bool canDoubleJump;

    private float coyoteTime = 0.2f;
    private float coyoteTimeCounter;

    private float jumpBufferTime = 0.2f;
    private float jumpBufferCounter;

    [SerializeField] private Rigidbody2D rb;
    [SerializeField] private Transform groundCheck;
    [SerializeField] private LayerMask groundLayer;
    [SerializeField] private TrailRenderer trail;

    [SerializeField] private bool enableDoubleJump = true; // New variable to enable/disable double jump

    private bool canDash = true;
    private bool isDashing;
    [SerializeField] private float dashingPower = 24f;
    [SerializeField] private float dashingTime = 0.2f;
    [SerializeField] private float dashingCooldown = 1f;

    private void Start()
    {

    }

    private void Update()
    {
        if(isDashing)
        {
            return;
        }

        horizontal = Input.GetAxisRaw("Horizontal");

        if (IsGrounded())
        {
            coyoteTimeCounter = coyoteTime;
            canDoubleJump = true; // Reset double jump when grounded
        }
        else
        {
            coyoteTimeCounter -= Time.deltaTime;
        }

        if (Input.GetButtonDown("Jump"))
        {
            jumpBufferCounter = jumpBufferTime;
        }
        else
        {
            jumpBufferCounter -= Time.deltaTime;
        }

        if (coyoteTimeCounter > 0f && jumpBufferCounter > 0f && !isJumping)
        {
            rb.velocity = new Vector2(rb.velocity.x, jumpingPower);
            jumpBufferCounter = 0f;
            StartCoroutine(JumpCooldown());
        }
        else if (enableDoubleJump && canDoubleJump && jumpBufferCounter > 0f && !isJumping)
        {
            rb.velocity = new Vector2(rb.velocity.x, jumpingPower);
            jumpBufferCounter = 0f;
            canDoubleJump = false; // Disable further double jumps
            StartCoroutine(JumpCooldown());
        }

        if (Input.GetButtonUp("Jump") && rb.velocity.y > 0f)
        {
            rb.velocity = new Vector2(rb.velocity.x, rb.velocity.y * 0.5f);
            coyoteTimeCounter = 0f;
        }

        Flip();

        //Dashing
        if(Input.GetKeyDown(KeyCode.LeftShift) && canDash)
        {
            StartCoroutine(Dash());
        }
    }

    private void FixedUpdate()
    {
        rb.velocity = new Vector2(horizontal * speed, rb.velocity.y);
    }

    private bool IsGrounded()
    {
        return Physics2D.OverlapCircle(groundCheck.position, 0.2f, groundLayer);
    }

    private void Flip()
    {
        if (isFacingRight && horizontal < 0f || !isFacingRight && horizontal > 0f)
        {
            Vector3 localScale = transform.localScale;
            isFacingRight = !isFacingRight;
            localScale.x *= -1f;
            transform.localScale = localScale;
        }
    }

    private IEnumerator JumpCooldown()
    {
        isJumping = true;
        yield return new WaitForSeconds(0.4f);
        isJumping = false;
    }

    private IEnumerator Dash()
    {
        canDash = false;
        isDashing = true;
        float orignalGravity = rb.gravityScale;
        rb.gravityScale = 0f;
        rb.velocity = new Vector2(transform.localScale.x * dashingPower, 0f);
        trail.emitting = true;
        yield return new WaitForSeconds(dashingTime);
        trail.emitting = false;
        rb.gravityScale = orignalGravity;
        isDashing = false;
        yield return new WaitForSeconds(dashingCooldown);
        canDash = true;
    }
}