Game 2D platformer for Unity

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

public class Platformer_Script : MonoBehaviour
{
    private Rigidbody2D rb;
    //private Animator animator;

    [Header("Prameters:")]
    public float speed = 5f;
    public float scale = 1.5f;
    public float jumpForce = 5f;
    public float lifes = 0f;

    [Header("Ground Check:")]
    public bool isGrounded = false;
    public bool DrawGroundCheck = true;
    public float GroundCheckRadius = 0.1f;       // Radius to check for the ground
    public LayerMask GroundLayer;               // Layer mask for the ground
    public Transform GroundCheckPosition;

    [Header("Head Check:")]
    public bool isHeaded = false;
    public bool DrawHeadCheck = true;
    public float HeadCheckRadius = 0.1f;       // Radius to check for the ground
    public LayerMask HeadLayer;               // Layer mask for the ground
    public Transform HeadCheckPosition;

    private float horizontalInput;

    void Start()
    {
        transform.localScale = new Vector3(scale, scale, scale);
        //animator = GetComponent();
        rb = GetComponent();
    }

    void Update()
    {
        // Get horizontal input from keyboard or virtual controller
        horizontalInput = 0f;
        if (Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.RightArrow))
        {
            horizontalInput = 1f;
        }
        else if (Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.LeftArrow))
        {
            horizontalInput = -1f;
        }

        // Set running animation
        //animator.SetBool("isRunning", horizontalInput != 0);

        // Handle flipping the player
        if (horizontalInput != 0)
        {
            transform.localScale = new Vector3(Mathf.Sign(horizontalInput) * scale, scale, scale);
        }

        // Handle jumping
        if ((Input.GetKey(KeyCode.Space) || Input.GetKey(KeyCode.UpArrow)))
        {
            Jump();
        }

        // Check if grounded
        Collider2D groundDetected = Physics2D.OverlapCircle(GroundCheckPosition.position, GroundCheckRadius, GroundLayer);
        isGrounded = groundDetected != null;

        Collider2D headDetected = Physics2D.OverlapCircle(HeadCheckPosition.position, HeadCheckRadius, HeadLayer);

        if (headDetected != null && !isHeaded)
        {
            isHeaded = true;
        }
        if (isGrounded)
        {
            isHeaded = false;
        }

        // Set jumping animation
        //animator.SetBool("isJump", !isGrounded);
    }

    void FixedUpdate()
    {
        // Apply movement using Rigidbody2D
        rb.velocity = new Vector2(horizontalInput * speed, rb.velocity.y);
    }

    public void Jump()
    {
        if (isGrounded)
        {
            rb.velocity = new Vector2(rb.velocity.x, jumpForce);
        }
    }

    void OnDrawGizmosSelected()
    {
        // Visualize the detection radius in the Scene view
        if (DrawGroundCheck)
        {
            Gizmos.color = Color.red;
            Gizmos.DrawWireSphere(GroundCheckPosition.position, GroundCheckRadius);
        }

        if (DrawHeadCheck)
        {
            Gizmos.color = Color.green;
            Gizmos.DrawWireSphere(HeadCheckPosition.position, HeadCheckRadius);
        }
    }
}