using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing;

namespace bbiwarg.DataSource
{
    /**
     * Gives access to all important data in depth image coordinates.
     */
    class ImageData
    {
        private DepthImage depthImage;
        private ConfidenceImage confidenceImage;
        private ColorImage colorImage;
        private UVImage uvImage;

        public ImageData(DepthImage depthImage, ConfidenceImage confidenceImage, ColorImage colorImage, UVImage uvImage)
        {
            this.depthImage = depthImage;
            this.confidenceImage = confidenceImage;
            this.colorImage = colorImage;
            this.uvImage = uvImage;
        }

        public int getWidth()
        {
            return depthImage.getWidth();
        }

        public int getHeight()
        {
            return depthImage.getHeight();
        }

        public short getDepth(int x, int y)
        {
            return depthImage.getDepth(x, y);
        }

        public short getConfidence(int x, int y)
        {
            return confidenceImage.getConfidence(x, y);
        }

        public Color getColor(int x, int y)
        {
            float u = uvImage.getU(x, y);
            float v = uvImage.getV(x, y);

            if (u < 0 || v < 0)
                return Color.Black;

            int xInColorImage = (int) (u * colorImage.getWidth()) % colorImage.getWidth();
            int yInColorImage = (int) (v * colorImage.getHeight()) % colorImage.getHeight();
            return colorImage.getColor(xInColorImage, yInColorImage);
        }
    }
}