using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;

namespace Tutorial007.Sprites
{
  public class Player : Sprite
  {
    public bool HasDied = false;

    public Player(Texture2D texture)
      : base(texture)
    {

    }

    public override void Update(GameTime gameTime, List<Sprite> sprites)
    {
      Move();

      foreach(var sprite in sprites)
      {
        if (sprite == this)
          continue;

        if(sprite.Rectangle.Intersects(this.Rectangle))
        {
          this.HasDied = true;
        }
      }

      Position += Velocity;

      // Keep the sprite on the screen
      Position.X = MathHelper.Clamp(Position.X, 0, Game1.ScreenWidth - Rectangle.Width);

      // Resest the velocity for when the user isn't holding down a key
      Velocity = Vector2.Zero;
    }

    private void Move()
    {
      if (Input == null)
        throw new Exception("Please assign a value to 'Input'");

      if (Keyboard.GetState().IsKeyDown(Input.Left))
        Velocity.X = -Speed;
      else if (Keyboard.GetState().IsKeyDown(Input.Right))
        Velocity.X = Speed;
    }
  }
}