Player Controller Script

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

public class PlayerController : MonoBehaviour
{
    // Configuration Parameters
    [Header("Player")]
    [SerializeField] float speed = 10f;
    [SerializeField] float jumpForce = 5f;

    [Header("Jump")]
    [SerializeField] float checkRadius = 0.2f;
    [SerializeField] LayerMask ground = default;

    // Local variables
    private float moveInput;
    private bool isGrounded;

    // Cashed References
    private Rigidbody2D rb;
    private SpriteRenderer spriteRenderer;
    private Animator animator;
    private Collider2D playerCollider;

    private void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        spriteRenderer = gameObject.GetComponent<SpriteRenderer>();
        animator = gameObject.GetComponent<Animator>();
        playerCollider = gameObject.GetComponent<Collider2D>();
    }


    private void Update()
    {
        Attack();
        Jump();
    }

    private void Attack()
    {
        if (Input.GetKeyDown(KeyCode.Mouse0))
        {
            animator.SetTrigger("attack1");
        }
    }


    private void Jump()
    {
        isGrounded = Physics2D.OverlapCircle(playerCollider.bounds.min, checkRadius, ground);
        if (Input.GetKeyDown(KeyCode.Space) && isGrounded)
        {
            animator.SetTrigger("jump");
            rb.velocity = Vector2.up * jumpForce;
        }
    }


    private void FixedUpdate()
    {
        Move();
    }


    private void Move()
    {
        moveInput = Input.GetAxis("Horizontal");
        rb.velocity = new Vector2(moveInput * speed, rb.velocity.y);

        if (moveInput > 0f)
        {
            spriteRenderer.flipX = false;
        }
        else if (moveInput < 0f)
        {
            spriteRenderer.flipX = true;
        }

        if (moveInput != 0)
        {
            animator.SetBool("isWalking", true);
        }
        else
        {
            animator.SetBool("isWalking", false);
        }
    }
}