using UnityEngine;

public class SimpleBuoyancy : MonoBehaviour
{
	public float waterLevel;

	public float floatHeight;

	public Vector3 buoyancyCentreOffset;

	public float bounceDamp;

	private Vector3 actionPoint;

	private float forceFactor;

	private Vector3 uplift;

	private void FixedUpdate()
	{
		actionPoint = base.transform.position + base.transform.TransformDirection(buoyancyCentreOffset);
		forceFactor = 1f - (actionPoint.y - waterLevel) / floatHeight;
		if (forceFactor > 0f)
		{
			uplift = -Physics.gravity * (forceFactor - GetComponent<Rigidbody>().velocity.y * bounceDamp);
			GetComponent<Rigidbody>().AddForceAtPosition(uplift, actionPoint);
		}
	}
}