using System;
using System.Collections.Generic;
using TriangleNet.Data;

namespace TriangleNet.Tools
{
	// Token: 0x02000019 RID: 25
	public class RegionIterator
	{
		// Token: 0x060000D9 RID: 217 RVA: 0x00013CE0 File Offset: 0x00011EE0
		public RegionIterator(Mesh mesh)
		{
			this.mesh = mesh;
			this.viri = new List<Triangle>();
		}

		// Token: 0x060000DA RID: 218 RVA: 0x00013CFC File Offset: 0x00011EFC
		private void ProcessRegion(Action<Triangle> func)
		{
			Otri otri = default(Otri);
			Otri otri2 = default(Otri);
			Osub osub = default(Osub);
			Behavior behavior = this.mesh.behavior;
			for (int i = 0; i < this.viri.Count; i++)
			{
				otri.triangle = this.viri[i];
				otri.Uninfect();
				func(otri.triangle);
				otri.orient = 0;
				while (otri.orient < 3)
				{
					otri.Sym(ref otri2);
					otri.SegPivot(ref osub);
					if (otri2.triangle != Mesh.dummytri && !otri2.IsInfected() && osub.seg == Mesh.dummysub)
					{
						otri2.Infect();
						this.viri.Add(otri2.triangle);
					}
					otri.orient++;
				}
				otri.Infect();
			}
			foreach (Triangle triangle in this.viri)
			{
				triangle.infected = false;
			}
			this.viri.Clear();
		}

		// Token: 0x060000DB RID: 219 RVA: 0x00013E34 File Offset: 0x00012034
		public void Process(Triangle triangle)
		{
			this.Process(triangle, delegate(Triangle tri)
			{
				tri.region = triangle.region;
			});
		}

		// Token: 0x060000DC RID: 220 RVA: 0x00013E66 File Offset: 0x00012066
		public void Process(Triangle triangle, Action<Triangle> func)
		{
			if (triangle != Mesh.dummytri && !Otri.IsDead(triangle))
			{
				triangle.infected = true;
				this.viri.Add(triangle);
				this.ProcessRegion(func);
			}
			this.viri.Clear();
		}

		// Token: 0x040000A7 RID: 167
		private Mesh mesh;

		// Token: 0x040000A8 RID: 168
		private List<Triangle> viri;
	}
}