source: 2010/23/sijoseha/alpha/Effects/Particle.cs @ 831

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;
using Microsoft.Xna.Framework.Net;
using Microsoft.Xna.Framework.Storage;

namespace Effects
{
    public class Particle
    {

        #region Variables, getters and setters

        private Vector2 position;
        public Vector2 Position
        {
            get { return position; }
            set { position = value; }
        }

        private Texture2D texture;
        public Texture2D Texture
        {
            get { return texture; }
            set { texture = value; }
        }

        private float scale;
        public float Scale
        {
            get { return scale; }
            set { scale = value; }
        }

        private float rotation;
        public float Rotation
        {
            get { return rotation; }
            set { rotation = value; }
        }

        private Vector2 origin;
        public Vector2 Origin
        {
            get { return origin; }
            set { origin = value; }
        }

        private Vector2 velocity;
        public Vector2 Velocity
        {
            get { return velocity; }
            set { velocity = value; }
        }

        private bool alive;
        public bool Alive
        {
            get { return alive; }
            set { alive = value; }
        }

        private float lifetime;
        public float Lifetime
        {
            get { return lifetime; }
            set { lifetime = value; }
        }

        private float currentTime;
        public float CurrentTime
        {
            get { return currentTime; }
            set { currentTime = value; }
        }

        #endregion

        public void Initialize(Vector2 position, float scale, float rotation, Vector2 velocity, float lifetime)
        {
            this.alive = true;
            this.position = position;
            this.scale = scale;
            this.lifetime = lifetime;
            this.rotation = rotation;
            this.origin = new Vector2(texture.Width / 2, texture.Height / 2);

            this.currentTime = 0.0f;
        }

        /// <summary>
        /// Updates particles position
        /// TODO:
        /// - Update for rotation, velocity etc.
        /// </summary>
        /// <param name="time"></param>
        public void Update(float time)
        {
            this.position = velocity * time;
            this.currentTime += time;
        }
    }
}