using UnityEngine;

namespace ECM2.Examples.Ladders
{
	public sealed class Ladder : MonoBehaviour
	{
		[Header("Ladder Path")]
		public float PathLength = 10f;

		public Vector3 PathOffset = new Vector3(0f, 0f, -0.5f);

		[Header("Anchor Points")]
		public Transform TopPoint;

		public Transform BottomPoint;

		public Vector3 bottomAnchorPoint => base.transform.position + base.transform.TransformVector(PathOffset);

		public Vector3 topAnchorPoint => bottomAnchorPoint + base.transform.up * PathLength;

		public Vector3 ClosestPointOnPath(Vector3 position, out float pathPosition)
		{
			Vector3 vector = topAnchorPoint - bottomAnchorPoint;
			float num = Vector3.Dot(position - bottomAnchorPoint, vector.normalized);
			if (num > 0f)
			{
				if (num <= vector.magnitude)
				{
					pathPosition = 0f;
					return bottomAnchorPoint + vector.normalized * num;
				}
				pathPosition = num - vector.magnitude;
				return topAnchorPoint;
			}
			pathPosition = num;
			return bottomAnchorPoint;
		}

		private void OnDrawGizmos()
		{
			Gizmos.color = Color.yellow;
			Gizmos.DrawLine(bottomAnchorPoint, topAnchorPoint);
			if (!(BottomPoint == null) && !(TopPoint == null))
			{
				Gizmos.DrawWireCube(BottomPoint.position, Vector3.one * 0.25f);
				Gizmos.DrawWireCube(TopPoint.position, Vector3.one * 0.25f);
			}
		}
	}
}