using UnityEngine;

namespace TG_TouchGesture
{
	public class TG_TouchGesturePress : TG_TouchGestureBase
	{
		private int m_fingerCount;

		private float m_minTouchTimeBeforeDetection;

		private bool m_isTapDown;

		private float m_tapStartTime;

		private Vector2 m_initialCenterPosition = Vector2.zero;

		private Vector2 m_lastCenterPosition = Vector2.zero;

		private bool m_isWaitingForNoTap;

		public TG_TouchGesturePress(TG_ETouchGestureType p_type, int p_fingerCount, float p_minTouchTimeBeforeDetection)
			: base(p_type)
		{
			m_fingerCount = p_fingerCount;
			m_minTouchTimeBeforeDetection = p_minTouchTimeBeforeDetection;
		}

		public override TG_TouchGestureEventArgs Update()
		{
			if (m_isTapDown)
			{
				if (Input.touchCount != m_fingerCount)
				{
					m_isWaitingForNoTap = true;
					m_isTapDown = false;
				}
				else if (Time.realtimeSinceStartup - m_tapStartTime > m_minTouchTimeBeforeDetection)
				{
					m_isWaitingForNoTap = false;
					Vector2 touchesCenterPosition = GetTouchesCenterPosition();
					Vector2 p_delta = touchesCenterPosition - m_lastCenterPosition;
					m_lastCenterPosition = touchesCenterPosition;
					return new TG_TouchGestureEventArgs(base.Type, m_initialCenterPosition, touchesCenterPosition, p_delta);
				}
			}
			else if (Input.touchCount == m_fingerCount)
			{
				if (!m_isWaitingForNoTap)
				{
					m_isTapDown = true;
					m_tapStartTime = Time.realtimeSinceStartup;
					m_lastCenterPosition = GetTouchesCenterPosition();
					m_initialCenterPosition = new Vector2(m_lastCenterPosition.x, m_lastCenterPosition.y);
				}
			}
			else
			{
				m_isTapDown = false;
				if (Input.touchCount > m_fingerCount)
				{
					m_isWaitingForNoTap = true;
				}
			}
			if (m_isWaitingForNoTap && Input.touchCount == 0)
			{
				m_isWaitingForNoTap = false;
			}
			return null;
		}
	}
}