ichni_Official/Assets/Scripts/UI/SongSelection/DifficultySelectionButton.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using DG.Tweening;
using Sirenix.OdinInspector;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace Ichni.Menu
{
    public partial class DifficultySelectionButton : MonoBehaviour
    {
        private DifficultySelectionContainer container => MenuManager.instance.songSelectionUIPage.difficultySelectionContainer;
        
        public Button button;
        public DifficultyData difficultyData;
        
        public TMP_Text difficultyValueText;
        public TMP_Text difficultyNameText;
        
        public Sprite selectedSprite;
        public Sprite unselectedSprite;

        [Title("Parts")] 
        public Image background;
        public Image innerRing;
        public Image outerRing;
        public Image star;
        public Image upperLeftCorner;
        public Image lowerLeftCorner;

        private void Start()
        {
            button.onClick.AddListener(Select);
        }
    }

    public partial class DifficultySelectionButton
    {
        public void SetUp(DifficultyData difficulty)
        {
            gameObject.SetActive(difficulty.isAvailable);
            
            this.difficultyData = difficulty;
            difficultyValueText.text = difficulty.difficultyValue.ToString();
            difficultyNameText.text = difficulty.GetDifficultyName();
        }
        
        public void Select()
        {
            MenuManager.instance.songSelectionUIPage.selectedDifficulty = difficultyData;
            MenuManager.instance.songSelectionUIPage.songInfoUI.SetCharter(difficultyData.charterName);
            MenuManager.instance.songSelectionUIPage.songInfoUI.SetBeatmapInfo(
                MenuManager.instance.songSelectionUIPage.selectedSave.beatmapSaves[difficultyData.difficultyIndex]);
            
            MenuInformationRecorder.instance.songSelectionRecords[ChapterSelectionManager.instance.currentChapter] = 
                new SongSelectionRecord(MenuManager.instance.songSelectionUIPage.selectedSong, difficultyData);

            if (container.selectedButton == this)
            {
                background.DOColor(difficultyData.color, 0.4f).SetEase(Ease.OutQuart).Play();
                return;
            }
            
            MenuManager.instance.songSelectionUIPage.difficultySelectionContainer.selectedButton?.Deselect();
            MenuManager.instance.songSelectionUIPage.difficultySelectionContainer.selectedButton = this;
            MenuInformationRecorder.instance.GetRecordOfThisChapter().difficultyIndex = difficultyData.difficultyIndex;
            
            gameObject.GetComponent<AudioContainer>().PlaySoundFX("SelectDifficluty");
            
            PlaySelectAnimation();
        }
        
        public void Deselect()
        {
            PlayDeselectAnimation();
        }
    }

    public partial class DifficultySelectionButton
    {
        private Sequence selectionSequence;
        
        private void PlaySelectAnimation()
        {
            selectionSequence?.Kill(true);
            background.sprite = selectedSprite;
            
            selectionSequence = DOTween.Sequence();
            selectionSequence.Append(background.rectTransform.DOAnchorPosX(-7.5f, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(background.rectTransform.DOSizeDelta(new Vector2(85, 85), 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(background.DOColor(difficultyData.color, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(innerRing.rectTransform.DOScale(Vector3.one, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(innerRing.rectTransform.DOLocalRotate(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(outerRing.rectTransform.DOScale(Vector3.one, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(outerRing.rectTransform.DOLocalRotate(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(star.rectTransform.DOAnchorPosX(-55, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(star.rectTransform.DOScale(Vector3.one, 0.4f).SetEase(Ease.OutQuart));
            
            selectionSequence.Append(upperLeftCorner.rectTransform.DOScale(Vector3.one, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(upperLeftCorner.rectTransform.DOAnchorPos(new Vector2(-52, 52), 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(lowerLeftCorner.rectTransform.DOScale(Vector3.one, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(lowerLeftCorner.rectTransform.DOAnchorPos(new Vector2(-52, -52), 0.4f).SetEase(Ease.OutQuart));
            
            selectionSequence.Play();
        }

        private void PlayDeselectAnimation()
        {
            selectionSequence?.Kill(true);
            background.sprite = unselectedSprite;
            background.color = Color.white;
            
            selectionSequence = DOTween.Sequence();
            selectionSequence.Append(upperLeftCorner.rectTransform.DOScale(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(upperLeftCorner.rectTransform.DOAnchorPos(Vector2.zero,0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(lowerLeftCorner.rectTransform.DOScale(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(lowerLeftCorner.rectTransform.DOAnchorPos(Vector2.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(background.rectTransform.DOAnchorPosX(0f, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(background.rectTransform.DOSizeDelta(new Vector2(100, 100), 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(innerRing.rectTransform.DOScale(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(innerRing.rectTransform.DOLocalRotate(new Vector3(0, 0, 180), 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(outerRing.rectTransform.DOScale(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(outerRing.rectTransform.DOLocalRotate(new Vector3(0, 0, -180), 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(star.rectTransform.DOScale(Vector3.zero, 0.4f).SetEase(Ease.OutQuart));
            selectionSequence.Join(star.rectTransform.DOAnchorPosX(0, 0.4f).SetEase(Ease.OutQuart));
            
            selectionSequence.Play();
        }
    }
}