ichni_Official/Assets/Scripts/Game/GameElements/Notes/JudgeSubmodules/TouchAreaJudgeUnit.cs

using System.Collections;
using Ichni.RhythmGame.Beatmap;
using UnityEngine;

namespace Ichni.RhythmGame
{
    public class TouchAreaJudgeUnit : NoteJudgeUnit
    {
        public float areaRadius;

        protected override GameObject GetHintImagePrefab()
        {
            return GameManager.instance.basePrefabs.areaHint;
        }

        private float CurrentScreenRatio()
        {
            float ratio = Screen.width / 1920f;
            return ratio;
        } 

        public TouchAreaJudgeUnit(NoteBase note, float areaRadius) : base(note)
        {
            this.areaRadius = areaRadius;
        }

        public override void UpdateJudge()
        {
            if ((note is not Hold && note.isFirstJudged)||(note is Hold && note.isFinalJudged)) return;
            Vector2 noteScreenPosition = note.noteScreenPosition;
            RectTransform canvasRect = GameManager.instance.judgeHintCanvas.GetComponent<RectTransform>();
            if (RectTransformUtility.ScreenPointToLocalPointInRectangle(canvasRect, noteScreenPosition, null, out Vector2 uiPosition))
            {
                judgeHintImage.anchoredPosition = uiPosition;
                judgeHintImage.sizeDelta = new Vector2(areaRadius * 2, areaRadius * 2) * CurrentScreenRatio();
            }
        }

        public override NoteJudgeUnit_BM ConvertToBM()
        {
            return new TouchAreaJudgeUnit_BM(areaRadius);
        }

        public override bool CheckJudgeAvailability(InputUnit inputUnit)
        {
            Vector2 inputScreenPosition = inputUnit.inputPosition;
            Vector2 noteScreenPosition = note.GetScreenPosition();

            float distance = Vector2.Distance(inputScreenPosition, noteScreenPosition);

            if (distance <= areaRadius)
            {
                if (inputUnit is InputUnitSwipe swipe && note is Flick flick)
                {
                    return flick.CheckSwipeDirection(swipe);
                }
#if UNITY_EDITOR
                Debug.Log("Input Position: " + inputScreenPosition +
                          ", Note Position: " + noteScreenPosition +
                          ", Distance: " + distance +
                          ", Area Radius: " + areaRadius +
                          ", Current Screen Ratio: " + CurrentScreenRatio());
#endif
                return true;
            }

            return false;
        }
    }

    namespace Beatmap
    {
        public class TouchAreaJudgeUnit_BM : NoteJudgeUnit_BM
        {
            public float areaRadius;

            public TouchAreaJudgeUnit_BM()
            {
                
            }
            
            public TouchAreaJudgeUnit_BM(float areaRadius)
            {
                this.areaRadius = areaRadius;
            }

            public override NoteJudgeUnit ConvertToGameType(NoteBase attachedNote)
            {
#if UNITY_STANDALONE
                return new FullScreenNearTimeJudgeUnit(attachedNote);
#elif UNITY_ANDROID || UNITY_IOS
                //return new FullScreenNearTimeJudgeUnit(attachedNote);
                return new TouchAreaJudgeUnit(attachedNote, areaRadius);
#endif
            }
        }
    }
}