BGJ-2022.1/Assets/Scripts/UI/ButtonBehaviour.cs

using UnityEngine;
using UnityEngine.EventSystems;
using TMPro;

namespace UI
{
    public class ButtonBehaviour : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
    {
        [SerializeField] private Vector2 offset = new Vector2(8, -8);
        private TMP_Text text = null;
        private Vector3 initialTextPosition = Vector3.zero;

        public void OnPointerDown(PointerEventData eventData)
        {
            text.transform.localPosition = initialTextPosition + (Vector3)offset;
        }

        public void OnPointerUp(PointerEventData eventData)
        {
            text.transform.localPosition = initialTextPosition;
            UIManager.Instance.PlayClickSound();
        }

        private void Start()
        {
            text = GetComponentInChildren<TMP_Text>();
            initialTextPosition = text.transform.localPosition;
        }
    }
}