using System;
using UnityEngine;

[AddComponentMenu("Modifiers/Warps/Hump")]
public class MegaHumpWarp : MegaWarp
{
	public float amount;

	public float cycles = 1f;

	public float phase;

	public bool animate;

	public float speed = 1f;

	public MegaAxis axis = MegaAxis.Z;

	private float amt;

	private Vector3 size = Vector3.zero;

	public override string WarpName()
	{
		return "Hump";
	}

	public override string GetHelpURL()
	{
		return "?page_id=207";
	}

	public override Vector3 Map(int i, Vector3 p)
	{
		p = tm.MultiplyPoint3x4(p);
		Vector3 a = p;
		float magnitude = p.magnitude;
		float t = Mathf.Exp((0f - totaldecay) * Mathf.Abs(magnitude));
		switch (axis)
		{
		case MegaAxis.X:
			p.x += amt * Mathf.Sin(Mathf.Sqrt(p.x * p.x / size.x) + Mathf.Sqrt(p.y * p.y / size.y) * (float)Math.PI / 0.1f * ((float)Math.PI / 180f * cycles) + phase);
			break;
		case MegaAxis.Y:
			p.y += amt * Mathf.Sin(Mathf.Sqrt(p.y * p.y / size.y) + Mathf.Sqrt(p.x * p.x / size.x) * (float)Math.PI / 0.1f * ((float)Math.PI / 180f * cycles) + phase);
			break;
		case MegaAxis.Z:
			p.z += amt * Mathf.Sin(Mathf.Sqrt(p.x * p.x / size.x) + Mathf.Sqrt(p.y * p.y / size.y) * (float)Math.PI / 0.1f * ((float)Math.PI / 180f * cycles) + phase);
			break;
		}
		p = Vector3.Lerp(a, p, t);
		return invtm.MultiplyPoint3x4(p);
	}

	private void Update()
	{
		if (animate)
		{
			phase += Time.deltaTime * speed;
		}
		Prepare(Decay);
	}

	public override bool Prepare(float decay)
	{
		totaldecay = Decay + decay;
		if (totaldecay < 0f)
		{
			totaldecay = 0f;
		}
		tm = base.transform.worldToLocalMatrix;
		invtm = tm.inverse;
		size.x = Width;
		size.y = Height;
		size.z = Length;
		amt = amount / 100f;
		return true;
	}
}