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

public class BouncingBall : MonoBehaviour
{
    public float bounceForce = 5f;
    Rigidbody2D rb;

    void Awake()
    {
        rb = GetComponent<Rigidbody2D>();
    }

    void Update()
    {

        if(collisionQueued != null){
            if(collisionVelocity.sqrMagnitude < 0.2f){
                rb.velocity = collisionQueued.contacts[0].point.normalized * bounceForce;
            }else{
                Vector2 normal = collisionQueued.contacts[0].normal;
                Vector2 reflection = Vector2.Reflect(collisionVelocity, normal);
                rb.velocity = reflection.normalized * bounceForce;
            }
            
            collisionQueued = null;
        }

        if(collisionQueued==null){
            collisionVelocity = rb.velocity;
        }
    }

    Collision2D collisionQueued = null;
    Vector2 collisionVelocity = Vector2.zero;

    void OnCollisionEnter2D(Collision2D collision)
    {
        collisionQueued=collision;
        //collisionVelocity=rb.velocity;
        rb.velocity=Vector2.zero;
    }

    void OnDrawGizmos()
    {
        if(collisionQueued != null)
        {
            Gizmos.color = Color.red;
            Gizmos.DrawLine(collisionQueued.contacts[0].point, collisionQueued.contacts[0].point + collisionQueued.contacts[0].normal * 0.1f);
            Gizmos.DrawLine(collisionQueued.contacts[0].point, collisionQueued.contacts[0].point + collisionVelocity * 1f);
        }
    }
}