using UnityEngine;

namespace ECM2.Examples
{
	public sealed class SimpleCameraController : MonoBehaviour
	{
		[SerializeField]
		private Transform _target;

		[SerializeField]
		private float _distanceToTarget = 10f;

		[SerializeField]
		private float _smoothTime = 0.1f;

		private Vector3 _followVelocity;

		public Transform target
		{
			get
			{
				return _target;
			}
			set
			{
				_target = value;
			}
		}

		public float distanceToTarget
		{
			get
			{
				return _distanceToTarget;
			}
			set
			{
				_distanceToTarget = Mathf.Max(0f, value);
			}
		}

		public void OnValidate()
		{
			distanceToTarget = _distanceToTarget;
		}

		public void Start()
		{
			if (!(_target == null))
			{
				base.transform.position = target.position - base.transform.forward * distanceToTarget;
			}
		}

		public void LateUpdate()
		{
			if (!(_target == null))
			{
				Vector3 vector = target.position - base.transform.forward * distanceToTarget;
				base.transform.position = Vector3.SmoothDamp(base.transform.position, vector, ref _followVelocity, _smoothTime);
			}
		}
	}
}