using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightGame
{
    public class Weapon : GameObject
    {
        protected static readonly double SPEED = 200;
        protected static ResourcePool<Weapon> resourcePool = new ResourcePool<Weapon>();
        public delegate void WeaponLogic(double dt);
        protected WeaponLogic weaponLogic = null;

        static public Weapon UnusedWeapon
        {
            get
            {
                return resourcePool.UnusedObject;
            }
        }

        public Weapon()
        {

        }

        public override void enterFrame(double dt)
        {
            base.enterFrame(dt);
            if (weaponLogic != null) weaponLogic(dt);
        }

        public Weapon startupBasicWeapon(int zLayer)
        {
            base.startupGameObject(new Point(17, 15), "Media/twobullets.png", zLayer);
            weaponLogic = new WeaponLogic(this.basicWeaponLogic);
            return this;
        }

        public override void shutdown()
        {
            base.shutdown();
            weaponLogic = null;
        }

        protected void basicWeaponLogic(double dt)
        {
            Position = new Point(Position.X, Position.Y - SPEED * dt);
            offscreenCheck();
        }
    }
}