using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using bbiwarg.Recognition.Tracking;
using bbiwarg.Input.InputHandling;
using bbiwarg.Utility;

namespace bbiwarg.Recognition.HandRecognition
{
    class HandTracker : Tracker<Hand, TrackedHand>
    {
        public HandTracker(ImageSize imageSize)
            : base(imageSize)
        {
        }

        public void trackHands(FrameData frameData)
        {
            trackObjects(frameData.DetectedHands);
            frameData.TrackedHands = getCurrentObjectsWithState(TrackingState.Tracked);
        }

        public override float calculateSimilarity(TrackedHand trackedHand, Hand detectedHand)
        {
            return getPositionSimilarity(trackedHand.CentroidPrediction, detectedHand.Centroid, Parameters.HandTrackerMaxCentroidRelativeMove);
        }

        protected override TrackedHand createTrackedObject(Hand detectedObject)
        {
            return new TrackedHand(idPool.getNextUnusedID(), detectedObject, Parameters.HandTrackerNumFramesDetectedUntilTracked, Parameters.HandTrackerNumFramesLostUntilDeleted);
        }
    }
}