Aimbot-ParallelEnv/Assets/Script/UI/ButtonActivateColorChanger.cs

using DG.Tweening;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class ButtonActivateColorChanger : MonoBehaviour
{
    public List<Button> clickableButton = new List<Button>();
    public List<Button> unclickableButton = new List<Button>();

    public float colorChangeSpeed = 0.1f;

    public bool clickable = true;

    [SerializeField] private UIColorContainer uiColor;

    // Start is called before the first frame update
    private void Start()
    {
        foreach (Button btn in clickableButton)
        {
            InitializeEventTriggers(btn, true);
            InitializeButtonColor(btn);
        }

        foreach (Button btn in unclickableButton)
        {
            InitializeEventTriggers(btn, false);
            InitializeButtonColor(btn);
        }
    }

    /// <summary>
    /// Initializes the event triggers for a button to handle its interactive behavior.
    /// </summary>
    /// <param name="btn">The button object to initialize.</param>
    /// <param name="isClickable">Indicates whether the button is clickable.</param>
    private void InitializeEventTriggers(Button btn, bool isClickable)
    {
        EventTrigger eventTrigger = btn.GetComponent<EventTrigger>();
        if (eventTrigger == null)
        {
            eventTrigger = btn.gameObject.AddComponent<EventTrigger>();
        }

        AddEventTrigger(eventTrigger, EventTriggerType.PointerEnter, (eventData) => OnPointerEnter(btn));
        AddEventTrigger(eventTrigger, EventTriggerType.PointerExit, (eventData) => OnPointerExit(btn));
        if (isClickable)
        {
            AddEventTrigger(eventTrigger, EventTriggerType.PointerDown, (eventData) => OnPointerDown(btn));
            AddEventTrigger(eventTrigger, EventTriggerType.PointerUp, (eventData) => OnPointerUp(btn));
        }
    }

    private void InitializeButtonColor(Button btn)
    {
        if (btn.interactable)
        {
            btn.image.DOColor(uiColor.normal.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.normal.text, colorChangeSpeed);
        }
    }

    /// <summary>
    /// Adds an event trigger entry to an event trigger.
    /// </summary>
    /// <param name="trigger">The event trigger object.</param>
    /// <param name="type">The event trigger type.</param>
    /// <param name="action">The event handler method to execute.</param>
    private void AddEventTrigger(EventTrigger trigger, EventTriggerType type, UnityEngine.Events.UnityAction<BaseEventData> action)
    {
        EventTrigger.Entry entry = new EventTrigger.Entry();
        entry.eventID = type;
        entry.callback.AddListener(action);
        trigger.triggers.Add(entry);
    }

    private void OnPointerEnter(Button btn)
    {
        if (btn.interactable)
        {
            btn.image.DOColor(uiColor.highLight.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.highLight.text, colorChangeSpeed);
        }
    }

    private void OnPointerExit(Button btn)
    {
        if (btn.interactable)
        {
            btn.image.DOColor(uiColor.normal.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.normal.text, colorChangeSpeed);
        }
    }

    private void OnPointerDown(Button btn)
    {
        if (btn.interactable)
        {
            btn.image.DOColor(uiColor.pressed.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.pressed.text, colorChangeSpeed);
        }
    }

    private void OnPointerUp(Button btn)
    {
        if (btn.interactable)
        {
            btn.image.DOColor(uiColor.highLight.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.highLight.text, colorChangeSpeed);
        }
    }

    /// <summary>
    /// Changes the interactable state of a button and modifies its color based on the state.
    /// </summary>
    /// <param name="btn">The button object to change the state and color of.</param>
    /// <param name="changeTo">Indicates the interactable state to change to.</param>
    public void ChangeInteractableColor(Button btn, bool changeTo)
    {
        btn.interactable = changeTo;
        if (changeTo)
        {
            btn.image.DOColor(uiColor.normal.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.normal.text, colorChangeSpeed);
        }
        else
        {
            btn.image.DOColor(uiColor.disabled.bg, colorChangeSpeed);
            btn.GetComponentInChildren<TextMeshProUGUI>().DOColor(uiColor.disabled.text, colorChangeSpeed);
        }
    }

    /// <summary>
    /// Adds a button to the button list and initializes the button's event triggers based on its clickability.
    /// </summary>
    /// <param name="btn">The button object to add to the button list.</param>
    /// <param name="clickable">Indicates whether the button is clickable.</param>
    public void AddButtonToColorChangerButtonList(Button btn, bool clickable)
    {
        if (clickable)
        {
            clickableButton.Add(btn);
            InitializeEventTriggers(btn, clickable);
        }
        else
        {
            unclickableButton.Add(btn);
            InitializeEventTriggers(btn, clickable);
        }
    }

    public void InitializeAllButtonColor()
    {
        foreach (Button btn in clickableButton)
        {
            btn.image.color = uiColor.normal.bg;
            btn.GetComponentInChildren<TextMeshProUGUI>().color = uiColor.normal.bg;
        }
        foreach (Button btn in unclickableButton)
        {
            btn.image.color = uiColor.disabled.bg;
            btn.GetComponentInChildren<TextMeshProUGUI>().color = uiColor.disabled.text;
        }
    }
}