using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Emgu.CV;
using Emgu.CV.Structure;

using bbiwarg.Utility;

namespace bbiwarg.Images
{
    public enum TouchImageState
    {
        none = 0,
        touchArea = 1,
        touchAreaMatched = 2,
        touchAreaStatusBar = 3,
        touchDetected = 4,
        touchTracked = 5
    }

    class TouchImage
    {
        private Image<Gray, byte> image;
        private List<Vector2D> oldTouches;

        public TouchImage(int width, int height)
        {
            image = new Image<Gray, byte>(width, height);
            oldTouches = new List<Vector2D>();
        }

        public void setTouchAt(int x, int y, TouchImageState tis)
        {
            image.Data[y, x, 0] = (byte)tis;

            int size = 5;
            if (tis == TouchImageState.touchTracked || tis == TouchImageState.touchDetected)
            {
                for (int i = x - size; i < x + size; i++)
                {
                    for (int j = y - size; j < y + size; j++)
                    {
                        if (i >= 0 && j >= 0 && i <= image.Width && j <= image.Height && Math.Sqrt(((x - i) * (x - i)) + ((y - j) * (y - j))) <= size)
                        {
                            image.Data[j, i, 0] = (byte)tis;
                        }
                    }
                }
            }
        }


        public TouchImageState getStateAt(int x, int y)
        {
            return (TouchImageState)image.Data[y, x, 0];
        }
    }
}