Reversed hits logic

[hine62]

I reversed the hits logic to produce multiple hit blocks that show damage on last two hits. What do you think?

[SerializeField] Sprite[] sprite;
[SerializeField] int numberOfHits = 1;

private void OnCollisionEnter2D(Collision2D collision)
    {
        numberOfHits--; 

        if (tag == "breakable")
        {
            if(numberOfHits <= 0)//destoy block
            {
                DestroyBlock();
            }else //change pictue
            {
                ChangeImage();
            }

        }
    }

    private void ChangeImage()
    {
        if (numberOfHits < 3)
        {
            //reduce numberOfHit to reflect image status
            //last state (0) is destroy, so 2 and 1 are image changes
            spriteRenderer.sprite = sprite[numberOfHits - 1];
        }
    }