using UnityEngine;

[AddComponentMenu("Modifiers/Squeeze")]
public class MegaSqueeze : MegaModifier
{
	public float amount;

	public float crv;

	public float radialamount;

	public float radialcrv;

	public bool doRegion;

	public float to;

	public float from;

	public MegaAxis axis = MegaAxis.Y;

	private Matrix4x4 mat = default(Matrix4x4);

	private float k1;

	private float k2;

	private float k3;

	private float k4;

	private float l;

	private float l2;

	private float ovl;

	private float ovl2;

	private void SetK(float K1, float K2, float K3, float K4)
	{
		k1 = K1;
		k2 = K2;
		k3 = K3;
		k4 = K4;
	}

	public override string ModName()
	{
		return "Squeeze";
	}

	public override string GetHelpURL()
	{
		return "?page_id=338";
	}

	public override Vector3 Map(int i, Vector3 p)
	{
		p = tm.MultiplyPoint3x4(p);
		if (l != 0f)
		{
			float num = ((!doRegion) ? Mathf.Abs(p.y * ovl) : ((p.y < from) ? (from * ovl) : ((!(p.y > to)) ? (p.y * ovl) : (to * ovl))));
			float num2 = 1f + num * k1 + k2 * num * (1f - num);
			p.y *= num2;
		}
		if (l2 != 0f)
		{
			float num3 = Mathf.Sqrt(p.x * p.x + p.z * p.z);
			float num4 = num3 * ovl2;
			float num5 = 1f + num4 * k3 + k4 * num4 * (1f - num4);
			p.x *= num5;
			p.z *= num5;
		}
		return invtm.MultiplyPoint3x4(p);
	}

	public override bool ModLateUpdate(MegaModContext mc)
	{
		return Prepare(mc);
	}

	public override bool Prepare(MegaModContext mc)
	{
		mat = Matrix4x4.identity;
		SetAxis(mat);
		SetK(amount, crv, radialamount, radialcrv);
		Vector3 vector = bbox.Size();
		switch (axis)
		{
		case MegaAxis.X:
			l = vector[0];
			l2 = Mathf.Sqrt(vector[1] * vector[1] + vector[2] * vector[2]);
			break;
		case MegaAxis.Y:
			l = vector[1];
			l2 = Mathf.Sqrt(vector[0] * vector[0] + vector[2] * vector[2]);
			break;
		case MegaAxis.Z:
			l = vector[2];
			l2 = Mathf.Sqrt(vector[1] * vector[1] + vector[0] * vector[0]);
			break;
		}
		if (l != 0f)
		{
			ovl = 1f / l;
		}
		if (l2 != 0f)
		{
			ovl2 = 1f / l2;
		}
		return true;
	}

	public override void ExtraGizmo(MegaModContext mc)
	{
		if (doRegion)
		{
			DrawFromTo(MegaAxis.Z, from, to, mc);
		}
	}
}