//-----------------------------------------------------------------------------
// TrackCombiModels.cs
//
// Microsoft XNA Community Game Platform
// Copyright (C) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
using Microsoft.Xna.Framework;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using RacingGame.Helpers;
using RacingGame.Landscapes;
#if NETFX_CORE
using Serializable = System.Runtime.Serialization.DataContractAttribute;
#endif

namespace RacingGame.Tracks
{
    /// <summary>
    /// Little helper class to load combinations of objects, which simplifies
    /// our level creation process. Also used for randomly generated objects
    /// near the track.
    /// </summary>
    public class TrackCombiModels
    {
        /// <summary>
        /// Directory for loading combi models.
        /// </summary>
        public const string Directory = "Content";
        /// <summary>
        /// Extension we use for combi models.
        /// </summary>
        public const string Extension = "CombiModel";
        /// <summary>
        /// CombiObject for every object in this combi model
        /// </summary>
        [Serializable]
        public class CombiObject
        {
            /// <summary>
            /// Model name
            /// </summary>
            public string modelName;
            /// <summary>
            /// Matrix
            /// </summary>
            public Matrix matrix;

            /// <summary>
            /// Create combi object
            /// </summary>
            public CombiObject()
            {
            }

            /// <summary>
            /// Create CombiObject
            /// </summary>
            /// <param name="setModelName">Set model name</param>
            /// <param name="setMatrix">Set matrix</param>
            public CombiObject(string setModelName, Matrix setMatrix)
            {
                modelName = setModelName;
                matrix = setMatrix;
            }
        }

        /// <summary>
        /// List of combi objects used in this file.
        /// </summary>
        private List<CombiObject> objects = new List<CombiObject>();

        /// <summary>
        /// Name of this combi model (extracted from filename).
        /// </summary>
        private string name = "";

        /// <summary>
        /// Size of this combi model.
        /// </summary>
        private float size = 10;
        /// <summary>
        /// Name
        /// </summary>
        /// <returns>String</returns>
        public string Name
        {
            get
            {
                return name;
            }
        }

        /// <summary>
        /// Size
        /// </summary>
        public float Size
        {
            get
            {
                // Return size 10 for palms, stones and ruins, rest gets size = 50
                return size;
            }
        }
        /// <summary>
        /// Load track combi models
        /// </summary>
        /// <param name="filename">Filename</param>
        public TrackCombiModels(string filename)
        {
            using (StreamReader file = new StreamReader(TitleContainer.OpenStream(
                Path.Combine(Directory, filename + "." + Extension))))
            {

                // Load everything into this class with help of the XmlSerializer.
                objects = (List<TrackCombiModels.CombiObject>)
                    new XmlSerializer(typeof(List<TrackCombiModels.CombiObject>)).
                    Deserialize(file.BaseStream);

                name = Path.GetFileNameWithoutExtension(filename);

                // Return size 10 for palms, stones and ruins, rest gets size = 50
                size = (Name == "CombiPalms" ||
                        Name == "CombiPalms2" ||
                        Name == "CombiRuins" ||
                        Name == "CombiRuins2" ||
                        Name == "CombiStones" ||
                        Name == "CombiStones2") ? 10 : 50;
            }
        }
        /// <summary>
        /// Add all models
        /// </summary>
        /// <param name="landscape">Landscape</param>
        /// <param name="parentMatrix">Parent matrix</param>
        public void AddAllModels(Landscape landscape, Matrix parentMatrix)
        {
            // Just add all models in our combi
            foreach (CombiObject obj in objects)
                landscape.AddObjectToRender(obj.modelName,
                    obj.matrix * parentMatrix, false);
        }
    }
}