using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.DirectX.Direct3D;
using Microsoft.DirectX;

namespace SalsaModel
{
    public class ShowBeat : IScene
    {
        Timing _timer;
        Location _loc;
        Device _dev;

        public ShowBeat(Timing timer, Location loc)
        {
            _timer = timer;
            _loc = loc;
        }
        Message3D[] beats = new Message3D[8];
        public void Setup(Device dev)
        {
            _dev = dev;
            for (int i = 0; i < 8; ++i)
            {
                beats[i] = new Message3D(dev, (i + 1).ToString());
            }
        }

        public void Draw()
        {
            Matrix oldview = _dev.Transform.View;
            Matrix oldProj = _dev.Transform.Projection;

            float angle = (float)-Math.PI / 2.0f;
            _dev.Transform.View = Matrix.LookAtLH(new Vector3((float)(300 * Math.Cos(angle)), 0, (float)(300 * Math.Sin(angle))), new Vector3(0, 0, 0), new Vector3(0, 1, 0));
            //_dev.Transform.Projection = Matrix.OrthoOffCenterLH(, -500f, 500f);
            double scale = 20;
            for (int i = 0; i < 8; ++i)
            {
                Location iLoc = _loc.Plus((i-4) * scale, -110, 0);
                if (_timer.Beat() == i + 1)
                {
                    beats[i].Draw(_dev, iLoc, scale, false);
                }
                //else if ((_timer.Beat() - 1) % 8 == (i+1)%8)
                //{
                //    beats[i].Draw(_dev, iLoc, scale / (1 + _timer.Percent()));
                //}
                //else if ((_timer.Beat() - 1 + 1) % 8 == i)
                //{
                //    beats[i].Draw(_dev, iLoc, scale / (2 - _timer.Percent()));
                //}
                else
                {
                    beats[i].Draw(_dev, iLoc, scale / 2);
                }
            }
            _dev.Transform.View = oldview;
            _dev.Transform.Projection = oldProj;
        }
    }
}