// System using statements
using System;
using System.Collections.Generic;
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.Net;
using Microsoft.Xna.Framework.Storage;

// Local using statements
using XNAEngine;
using CollisionDetection;
using LinearAlgebra;

//namespace XNACollisionDetection
{
       public enum player_status_info
        {
            Normal,
            Invulnerability,
            Invisibility
        }
        string player_status = "Normal";
        float invulnerable_time = 0;
        float invisible_time = 0;
        float dead_time = 0;


       void pickUp_Invulnerability()
        {
            player_status = "Invulnerable";
            invulnerable_time = 15.0f;
        }

        void pickUp_Invisible()
        {
            player_status = "Invisible";
            invisible_time = 15.0f;
        }

        void player_die()
        {
            player_status = "Dead";
            dead_time = 6.0f;
        }
  
       void DrawPlayerStatus(GameTime gameTime)
        {
            //call this in draw()
            if (player_status == "Invulnerable")
            {
                graphics.GraphicsDevice.RenderState.FogColor = Color.WhiteSmoke;
                graphics.GraphicsDevice.RenderState.FogStart = 1.0f;
                graphics.GraphicsDevice.RenderState.FogEnd = 4000.0f;
                graphics.GraphicsDevice.RenderState.FogTableMode = FogMode.Exponent;
                graphics.GraphicsDevice.RenderState.FogVertexMode = FogMode.Exponent;
                graphics.GraphicsDevice.RenderState.FogDensity = 0.015f;
                graphics.GraphicsDevice.RenderState.FogEnable = true;
            }
            else if (player_status == "Invisible")
            {
                graphics.GraphicsDevice.RenderState.FogColor = Color.LightSteelBlue;
                graphics.GraphicsDevice.RenderState.FogStart = 1.0f;
                graphics.GraphicsDevice.RenderState.FogEnd = 4000.0f;
                graphics.GraphicsDevice.RenderState.FogTableMode = FogMode.Exponent;
                graphics.GraphicsDevice.RenderState.FogVertexMode = FogMode.Exponent;
                graphics.GraphicsDevice.RenderState.FogDensity = 0.015f;
                graphics.GraphicsDevice.RenderState.FogEnable = true;
            }
            else if (player_status == "Dead")
            {
                graphics.GraphicsDevice.RenderState.FogColor = Color.Red;
                graphics.GraphicsDevice.RenderState.FogStart = 1.0f;
                graphics.GraphicsDevice.RenderState.FogEnd = 4000.0f;
                graphics.GraphicsDevice.RenderState.FogTableMode = FogMode.Exponent;
                graphics.GraphicsDevice.RenderState.FogVertexMode = FogMode.Exponent;
                graphics.GraphicsDevice.RenderState.FogDensity = 0.04f;
                graphics.GraphicsDevice.RenderState.FogEnable = true;
            }
            else
                graphics.GraphicsDevice.RenderState.FogEnable = false;

        }


  void PlayerStatusUpdate(GameTime gameTime)
        {
            //call this in Update()
             dt = (float)gameTime.ElapsedGameTime.TotalSeconds;

            if (invisible_time > 0)
            {
                invisible_time -= dt;
            }
            if (invulnerable_time > 0)
                invulnerable_time -= dt;

            if (player_health <= 0 && player_status != "Dead")
            {
                player_die();
                player_health = 0;
            }

            if (player_status == "Dead" && dead_time > 0)
            {
                dead_time -= dt;
            }
            else if (player_status == "Dead" && dead_time <= 0)
            {
                player_respawn();
            }

            if (player_status == "Dead" && dead_time <= 0)
            {
                player_respawn();
                player_status = "Normal";
            }
            if (player_status == "Invulnerable" && invulnerable_time <= 0)
            {
                player_status = "Normal";
            }
            if (player_status == "Invisible" && invisible_time <= 0)
            {
                player_status = "Normal";
            }



        }
    private void DrawParticles()
        {
            // Pass camera matrices through to the particle system components.
           
                explosionParticles.SetCamera(camera.View, camera.Projection);
                explosionSmokeParticles.SetCamera(camera.View, camera.Projection);
                projectileTrailParticles.SetCamera(camera.View, camera.Projection);
                smokePlumeParticles.SetCamera(camera.View, camera.Projection);
                fireParticles.SetCamera(camera.View, camera.Projection);

                if (player_status != "Dead")
                {
                    flameSpitParticles.Visible = true;
                    flameSpitParticles.SetCamera(camera.View, camera.Projection);
                }
                else
                {
                    flameSpitParticles.Visible = false;
                }

        }


}