using UnityEngine;

namespace MoleMole
{
	public class IslandCameraBackToBaseState : IslandCameraBaseState
	{
		private Vector3 _startPos;

		private Vector3 _finalPos;

		private float _startPitch;

		private float _finalPitch;

		private float _startTime;

		private float _totalTime;

		private MonoIslandBuilding _building;

		public IslandCameraBackToBaseState(MonoIslandCameraSM sm)
		{
			_sm = sm;
		}

		public override void Update()
		{
			if (_totalTime <= 0f)
			{
				_sm.SetPivot(_finalPos);
				_sm.SetLookAtPitch(_finalPitch);
				_sm.GotoState(E_IslandCameraState.Swipe);
				return;
			}
			float num = (Time.time - _startTime) / _totalTime;
			if (num >= 1f)
			{
				_sm.SetPivot(_finalPos);
				_sm.SetLookAtPitch(_finalPitch);
				_sm.GotoState(E_IslandCameraState.Swipe);
			}
			else
			{
				float value = 2f * num - num * num;
				value = Mathf.Clamp(value, 0f, 1f);
				_sm.SetPivot(Vector3.Lerp(_startPos, _finalPos, value));
				_sm.SetLookAtPitch(Mathf.Lerp(_startPitch, _finalPitch, value));
			}
		}

		public override void Enter(IslandCameraBaseState lastState, object param = null)
		{
			base.Enter(lastState, param);
			_startPos = _sm.GetPivot();
			_finalPos = _sm.GetCameraBasePos().position;
			_startPitch = _sm.GetLookAtPitch();
			_finalPitch = _sm.GetCameraBasePos().eulerAngles.x;
			_startTime = Time.time;
			float magnitude = (_finalPos - _startPos).magnitude;
			_totalTime = magnitude / _sm.GetBackToBaseSpeed(magnitude);
			_sm.TriggerCover(E_AlphaLerpDir.ToLittle);
			_building = param as MonoIslandBuilding;
			if (_building != null)
			{
				_building.TriggerHighLight(E_AlphaLerpDir.ToLittle);
			}
		}

		public override void Exit(IslandCameraBaseState nextState)
		{
			if (_building != null)
			{
				_building.SetRenderQueue(E_IslandRenderQueue.Back);
			}
			if (Singleton<MainUIManager>.Instance != null)
			{
				MonoIslandUICanvas monoIslandUICanvas = Singleton<MainUIManager>.Instance.SceneCanvas as MonoIslandUICanvas;
				if (monoIslandUICanvas != null)
				{
					monoIslandUICanvas.SetBuildingEffect(_building, true);
				}
			}
			_building = null;
			if (_sm != null && _sm.GetGyroManager() != null)
			{
				_sm.GetGyroManager().SetEnable(true);
			}
		}
	}
}