using System;
using UnityEngine;

[AddComponentMenu("Modifiers/Warps/Ripple")]
public class MegaRippleWarp : MegaWarp
{
	public float amp;

	public float amp2;

	public float flex = 1f;

	public float wave = 1f;

	public float phase;

	public bool animate;

	public float Speed = 1f;

	public float radius = 1f;

	public int segments = 10;

	public int circles = 4;

	private float time;

	private float dy;

	private float t;

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

	public override string GetIcon()
	{
		return "MegaRipple icon.png";
	}

	public override string GetHelpURL()
	{
		return "?page_id=2587";
	}

	public override Vector3 Map(int i, Vector3 p)
	{
		p = tm.MultiplyPoint3x4(p);
		Vector3 a = p;
		float magnitude = p.magnitude;
		float num = Mathf.Exp((0f - totaldecay) * Mathf.Abs(magnitude));
		float num2;
		if (amp != amp2)
		{
			float magnitude2 = p.magnitude;
			if (magnitude2 == 0f)
			{
				num2 = amp;
			}
			else
			{
				float num3 = Mathf.Acos(p.x / magnitude2) / (float)Math.PI;
				num3 = ((!(num3 > 0.5f)) ? num3 : (1f - num3));
				num3 *= 2f;
				num3 = Mathf.SmoothStep(0f, 1f, num3);
				num2 = amp * (1f - num3) + amp2 * num3;
			}
		}
		else
		{
			num2 = amp;
		}
		float y = p.y;
		p.y = 0f;
		float magnitude3 = p.magnitude;
		p.y = y + flex * MegaUtils.WaveFunc(magnitude3, time, num2, wave, phase, dy);
		p = Vector3.Lerp(a, p, num);
		return invtm.MultiplyPoint3x4(p);
	}

	private void Update()
	{
		if (animate)
		{
			t += Time.deltaTime * Speed;
			phase = t;
		}
	}

	public override bool Prepare(float decay)
	{
		tm = base.transform.worldToLocalMatrix;
		invtm = tm.inverse;
		dy = Decay / 1000f;
		totaldecay = dy + decay;
		if (totaldecay < 0f)
		{
			totaldecay = 0f;
		}
		return true;
	}

	private Vector3 GetPos(float u, float rad)
	{
		Vector3 zero = Vector3.zero;
		zero.x = rad * Mathf.Cos(u * (float)Math.PI * 2f);
		zero.z = rad * Mathf.Sin(u * (float)Math.PI * 2f);
		float num = ((!(u > 0.5f)) ? u : (u - 0.5f));
		num = ((!(num > 0.25f)) ? num : (0.5f - num));
		num *= 4f;
		num *= num;
		zero.y = MegaUtils.WaveFunc(rad, t, amp * (1f - num) + amp2 * num, wave, phase, dy);
		return zero;
	}

	private void MakeCircle(float t, float rad, float r1, float a1, float a2, float w, float s, float d, int numCircleSegs)
	{
		Vector3 vector = Vector3.zero;
		Vector3 zero = Vector3.zero;
		Vector3 zero2 = Vector3.zero;
		Vector3 to = Vector3.zero;
		Gizmos.color = MegaWarp.gCol2;
		for (int i = 0; i < numCircleSegs; i++)
		{
			float u = (float)i / (float)numCircleSegs;
			zero = GetPos(u, rad);
			zero2 = GetPos(u, r1);
			if (i > 0)
			{
				Gizmos.DrawLine(vector, zero);
			}
			else
			{
				to = zero;
			}
			Gizmos.color = MegaWarp.gCol1;
			Gizmos.DrawLine(zero2, zero);
			if ((i & 1) == 0)
			{
				Gizmos.color = MegaWarp.gCol1;
			}
			else
			{
				Gizmos.color = MegaWarp.gCol2;
			}
			vector = zero;
		}
		Gizmos.DrawLine(vector, to);
	}

	public override void DrawGizmo(Color col)
	{
		SetGizCols(col.a);
		tm = Matrix4x4.identity;
		invtm = tm.inverse;
		if (Prepare(0f))
		{
			tm *= base.transform.localToWorldMatrix;
			invtm = tm.inverse;
			Gizmos.matrix = base.transform.localToWorldMatrix;
			float r = 0f;
			for (int i = 0; i < circles; i++)
			{
				float num = (float)i / (float)circles * radius;
				MakeCircle(t, num, r, amp, amp2, wave, phase, dy, segments);
				r = num;
			}
		}
	}
}