/* Sparx
 * Copyright August Zinsser 2007
 * This program is distributed under the terms of the GNU General Public License
 */


using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Storage;

namespace Pina3D.Particles
{
    public abstract class Force : SparxMortalEntity
    {
        protected float mDelay;
        protected float mMagnitude;
        protected Vector3 mForceVector;

        public float Delay { set { mDelay = value; } get { return mDelay; } }
        public virtual float Magnitude { set { mMagnitude = value; } get { return mMagnitude; } }


        public Force(string name)
            : this (name, 0f, 0f)
        {
        }


        public Force(string name, float lifeSpan, float delay)
            : base (name, lifeSpan, false)
        {
            mDelay = delay;
        }


        /// <summary>
        /// Applies the force to the specified entity
        /// </summary>
        public abstract void Update(Emission emission);
    }
}