Game create Day 20

coding program

today coding is jump action & collision detection|

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class PlayerCtrl : MonoBehaviour

{

    public float speed = 5;

    public float jumpForce = 400f;

    private Rigidbody2D rb2d;

    private Animator anim;

    private SpriteRenderer spRenderer;

    private bool isGround;

    // Start is called before the first frame update

    void Start()

    {

        this.rb2d = GetComponent<Rigidbody2D>();

        this.anim = GetComponent<Animator>();

        this.spRenderer = GetComponent<SpriteRenderer>;

    }

    // Update is called once per frame

    void Update()

    {

        float x = Input.GetAxisRaw("Horizontal");

        //change sprite direction

        if( x < 0 ){

            spRenderer.flipX = true;

        }else if( x > 0 ){

            spRenderer.flipX = false;

        }

        rb2d.AddForce( Vector2.right * x * speed );

        anim.SetFloat("Speed", Mathf.Abs( rb2d.velocity.x ));

        if( Input.GetButtonDown("Jump") & isGround ){

        

            anim.SelBool("isJump",true);

            rb2d.AddForce( Vector2.up * jumpForce );

        

        }

        float velX = rb2d.velocity.x;

        float velY = rb2d.velocity.y;

        if( velX > 5.0f ){

            rb2d.velocity = new Vector2( 5.0f , velY);

        }

        if( velX < -5.0f ){

            rb2d.velocity = new Vector2( -5.0f , velY);

        }

    }

    private void FixedUpdate()

    {

        isGround = false;

          Vector2 groundPos =

              new Vector2 (

                  transform.position.x;

                  transform.position.y;

              );

          Vector2 groundArea = new Vector2( 0.5f , 0.5f );

          Debug.DrowLine( groundPos + groundArea , groundPos - groundArea , color.red );

          isGround =

              Physics2D.OverlapArea(

                  groundPos + groundArea ,

                  groundPos _ groundArea ,

                  groundLayer

              );

          Debug.log(isGround);

      }

}