using System.Collections;
using Script.CharacterManagerScript;
using UnityEditor.UIElements;
using UnityEngine;
using UnityEngine.Serialization;
namespace Script
{
public class SwipeManager : MonoBehaviour
{
private GameObject _startObject;
private GameObject _returnObject;
private Vector2 _initialScale;
private Vector2 _firstTouchPosition;
private Vector2 _emptyGridPosition;
public float duration;
[SerializeField] private float _minSwipeLength = 0.2f;
[SerializeField] private SpawnManager spawnManager;
[SerializeField] private CountManager countManager;
[SerializeField] private LayerMask characterLayer;
[SerializeField] private MatchManager matchManager;
[SerializeField] private GridManager gridManager;
private void Update()
{
if (Input.GetMouseButtonDown(0))
{
if (Camera.main != null)
{
Vector2 worldPoint =
Camera.main.ScreenToWorldPoint(Input.mousePosition);
var point2D = new Vector2(worldPoint.x, worldPoint.y);
var hit = Physics2D.Raycast
(point2D, Vector2.zero, 0f, characterLayer);
if (hit.collider != null)
{
if (_startObject != null)
{
_startObject.transform.localScale = _initialScale;
}
_startObject = hit.collider.gameObject;
_initialScale = _startObject.transform.localScale;
_startObject.transform.localScale =
_initialScale * 1.2f;
_firstTouchPosition = point2D;
}
}
}
if (Input.GetMouseButtonUp(0))
{
HandleTouchEnd();
}
if (!Input.GetMouseButton(0)) return;
{
// if (_startObject == null) return;
if (Camera.main == null) return;
Vector2 worldPoint =
Camera.main.ScreenToWorldPoint(Input.mousePosition);
var point2D = new Vector2(worldPoint.x, worldPoint.y);
var swipe = point2D - _firstTouchPosition;
if (!(swipe.sqrMagnitude > _minSwipeLength * _minSwipeLength))
return;
_firstTouchPosition = point2D;
HandleSwipe(swipe);
}
}
// CountManager의 Count를 참조하여 이동가능횟수를 확인
private bool CanMove()
{
return countManager.CanMove();
}
// 사용자 편의를 위해 스와이프 각도를 보정하여 스와이프 각도에 따라 처리합니다.
private void HandleSwipe(Vector2 swipe)
{
if (!CanMove()) return;
if (_startObject == null) return;
var swipeAngle = Mathf.Atan2(swipe.y, swipe.x) * Mathf.Rad2Deg;
swipeAngle = (swipeAngle < 0) ? swipeAngle + 360 : swipeAngle;
var position = _startObject.transform.position;
var startX = (int)position.x;
var startY = (int)position.y;
var endX = startX;
var endY = startY;
switch (swipeAngle)
{
case >= 315 or < 45:
endX += 1;
break;
case >= 45 and < 135:
endY += 1;
break;
case >= 135 and < 225:
endX -= 1;
break;
case >= 225 and < 315:
endY -= 1;
break;
}
var endObject =
spawnManager.GetCharacterAtPosition(new Vector3(endX, endY, 0f));
if (endObject != null)
{
HandleSwap(startX, startY, endX, endY, endObject);
}
else
{
StartCoroutine(NullSwap(startX, startY, endX, endY));
}
_startObject = null;
}
private IEnumerator AutoMatchAfterSwap()
{
while (true)
{
yield return new WaitForEndOfFrame();
var isMatched = false;
for (var x = 0; x < gridManager.gridWidth; x++)
{
for (var y = 0; y < gridManager.gridHeight; y++)
{
if (matchManager.IsMatched(new Vector3(x, y, 0f)))
{
isMatched = true;
}
}
}
if (!isMatched) break;
}
}
// 터치가 끝나면 초기화 합니다. (터치시 호버 작동 터치 완료 후 호버 초기화)
private void HandleTouchEnd()
{
if (_startObject == null) return;
_startObject.transform.localScale = _initialScale;
_startObject = null;
}
// 케릭터 오브젝트가 빈 Grid로 스와이프되면 오브젝트를 Pool 반환 하는 기능
private IEnumerator NullSwap(int startX, int startY, int endX, int endY)
{
Vector2 startPosition = _startObject.transform.position;
Vector2 endPosition = new Vector3(endX, endY, 0f);
_startObject.transform.position = endPosition;
countManager.DecreaseMoveCount();
_returnObject = _startObject;
_startObject.transform.localScale = _initialScale;
_emptyGridPosition = new Vector2(startX, startY);
// Debug.Log(_emptyGridPosition);
yield return new WaitForSeconds(0.1f);
CharacterPool.ReturnToPool(_returnObject);
spawnManager.MoveCharactersEmptyGrid(_emptyGridPosition);
}
private void HandleSwap
(int startX, int startY, int endX, int endY, GameObject endObject)
{
if (_startObject == null) return;
var startPosition = new Vector3(startX, startY, 0);
var endPosition = new Vector3(endX, endY, 0f);
StartCoroutine(SwapAndMatch
(_startObject, endObject, endPosition, startPosition));
_startObject.transform.localScale = _initialScale;
countManager.DecreaseMoveCount();
}
private IEnumerator SwapAndMatch(GameObject startObject, GameObject
endObject, Vector3 endPosition, Vector3 startPosition)
{
yield return MoveOverTime(startObject, endPosition);
yield return MoveOverTime(endObject, startPosition);
matchManager.IsMatched(endPosition);
StartCoroutine(AutoMatchAfterSwap());
}
private IEnumerator MoveOverTime(
GameObject objectToMove, Vector3 destination)
{
duration = 0.2f;
float elapsedTime = 0;
var startingPos = objectToMove.transform.position;
while (elapsedTime < duration)
{
objectToMove.transform.position =
Vector3.Lerp(startingPos, destination, (elapsedTime / duration));
elapsedTime += Time.deltaTime;
yield return null;
}
objectToMove.transform.position = destination;
yield return new WaitUntil(() =>
objectToMove.transform.position == destination);
}
}
}
