/* OpenDiablo 2 - An open source re-implementation of Diablo 2 in C#
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
using OpenDiablo2.Common.Interfaces;
using OpenDiablo2.Common.Models;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
namespace OpenDiablo2.Core
{
public sealed class MPQProvider : IMPQProvider
{
private readonly IList mpqs;
private readonly Dictionary mpqLookup = new Dictionary();
public MPQProvider(GlobalConfiguration globalConfiguration)
{
// TODO: Make this less dumb. We need to an external file to configure mpq load order.
this.mpqs = Directory
.EnumerateFiles(globalConfiguration.BaseDataPath, "*.mpq")
.Where(x => !Path.GetFileName(x).StartsWith("patch"))
.Select(file => new MPQ(file))
.ToArray();
// Load the base game files
for(var i = 0; i < mpqs.Count(); i++)
{
if (Path.GetFileName(mpqs[i].Path).StartsWith("d2exp") || Path.GetFileName(mpqs[i].Path).StartsWith("d2x"))
continue;
foreach(var file in mpqs[i].Files)
{
mpqLookup[file.ToLower()] = i;
}
}
// Load the expansion game files
for (var i = 0; i < mpqs.Count(); i++)
{
if (!Path.GetFileName(mpqs[i].Path).StartsWith("d2exp") && !Path.GetFileName(mpqs[i].Path).StartsWith("d2x"))
continue;
foreach (var file in mpqs[i].Files)
{
mpqLookup[file.ToLower()] = i;
}
}
}
public byte[] GetBytes(string fileName)
{
var stream = GetStream(fileName);
var result = new byte[stream.Length];
stream.Read(result, 0, (int)stream.Length);
return result;
}
public IEnumerator GetEnumerator()
{
return mpqs.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public Stream GetStream(string fileName)
{
if (!mpqLookup.ContainsKey(fileName.ToLower()))
return null;
return mpqs[mpqLookup[fileName.ToLower()]].OpenFile(fileName);
}
public IEnumerable GetTextFile(string fileName)
=> new StreamReader(mpqs[mpqLookup[fileName.ToLower()]].OpenFile(fileName)).ReadToEnd().Split('\n');
}
}