using System;

using System.Collections.Generic;

using System.Linq;

namespace Contours {

    public struct VectorFloat {

        public float x, y;

        public VectorFloat(float x, float y) {

            this.x = x;

            this.y = y;

        }

    }

    public class ContourFloat {

        public readonly List<List<VectorFloat>> contours = new List<List<VectorFloat>>();

        public ContourInt toContourInt(float detalization = 10000f) {

            ContourInt contourInt = new ContourInt();

            bool found = false;

            VectorFloat min = new VectorFloat(0f, 0f);

            VectorFloat max = new VectorFloat(0f, 0f);

            foreach(List<VectorFloat> contour in contours) {

                foreach(VectorFloat point in contour) {

                    if (!found) {

                        min = max = point;

                        found = true;

                    } else {

                        if (min.x > point.x)

                            min.x = point.x;

                        if (min.y > point.y)

                            min.y = point.y;

                        if (max.x > point.x)

                            max.x = point.x;

                        if (max.y > point.y)

                            max.y = point.y;

                    }

                }

            }

            if (found) {

                contourInt.scale = Math.Max(max.x - min.x, max.y - min.y)/detalization;

                foreach(List<VectorFloat> contour in contours) {

                    List<VectorInt> newContour = new List<VectorInt>();

                    foreach(VectorFloat point in contour)

                        newContour.Add(new VectorInt((int)Math.Round(point.x*contourInt.scale), (int)Math.Round(point.y*contourInt.scale)));

                    contourInt.contours.Add(newContour);

                }

            }

            return contourInt;

        }

    }

}