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

namespace Utility
{
    public enum  RumbleType
    {
        VERYLOW,
        LOW,
        MEDIUM,
        HIGH,
        VERYHIGH,
    }
    public class RumbleManager
    {
        #region Subclasses
        private class Rumble
        {
            #region Variables

            public float left;
            public float right;
            public float timer;

            #endregion

            #region System

            public Rumble(float left, float right, float timer)
            {
                this.left = left;
                this.right = right;
                this.timer = timer;
            }

            #endregion


        }
        #endregion

        #region Variables
        PlayerIndex index;
        LinkedList<Rumble> rumbleList;
        #endregion

        #region System
        public RumbleManager(PlayerIndex index)
        {
            this.index = index;
            rumbleList = new LinkedList<Rumble>();
        }

        public void Update(GameTime gameTime)
        {
            float left = 0.0f;
            float right = 0.0f;

            LinkedListNode<Rumble> node;
            LinkedListNode<Rumble> next = rumbleList.First;
            for (node = next; next != null; node = next)
            {
                Rumble rumble = node.Value;
                left += rumble.left;
                right += rumble.right;

                rumble.timer = rumble.timer - (float)gameTime.ElapsedGameTime.TotalSeconds;

                next = node.Next;
                if (rumble.timer < 0)
                {
                    rumbleList.Remove(node);
                }
            }

            left  = Math.Min(1.0f, left);
            right = Math.Min(1.0f, right);
            GamePad.SetVibration(index, left, right);
        }
        #endregion

        #region Methods
        public void AddRumble(float left, float right, float numSeconds)
        {
            rumbleList.AddFirst(new Rumble(left, right, numSeconds));
        }

        public void AddRumble(RumbleType type)
        {
            switch( type )
            {
                case RumbleType.VERYLOW:
                    rumbleList.AddFirst(new Rumble(.1f, .1f, .1f ) );
                    break;
                case RumbleType.LOW:
                    rumbleList.AddFirst( new Rumble( .25f, .25f, .25f ) );
                    break;
                case RumbleType.MEDIUM:
                    rumbleList.AddFirst(new Rumble(.5f, .5f, .5f));
                    break;
                case RumbleType.HIGH:
                    rumbleList.AddFirst(new Rumble(.75f, .75f, .75f));
                    break;
                case RumbleType.VERYHIGH:
                    rumbleList.AddFirst(new Rumble(1.0f, 1.0f, 1.0f));
                    break;

            }
        }
        #endregion
    }
}