Files
OpenRA/OpenRA.Game/Graphics/Theater.cs
2014-06-15 22:16:40 +12:00

89 lines
2.4 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007-2013 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation. For more information,
* see COPYING.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using OpenRA.FileSystem;
namespace OpenRA.Graphics
{
public class Theater
{
SheetBuilder sheetBuilder;
Dictionary<ushort, Sprite[]> templates;
Sprite missingTile;
Sprite[] LoadTemplate(string filename, string[] exts, Dictionary<string, ISpriteSource> sourceCache, int[] frames)
{
ISpriteSource source;
if (!sourceCache.ContainsKey(filename))
{
using (var s = GlobalFileSystem.OpenWithExts(filename, exts))
source = SpriteSource.LoadSpriteSource(s, filename);
if (source.CacheWhenLoadingTileset)
sourceCache.Add(filename, source);
}
else
source = sourceCache[filename];
if (frames != null)
{
var ret = new List<Sprite>();
var srcFrames = source.Frames.ToArray();
foreach (var i in frames)
ret.Add(sheetBuilder.Add(srcFrames[i]));
return ret.ToArray();
}
return source.Frames.Select(f => sheetBuilder.Add(f)).ToArray();
}
public Theater(TileSet tileset)
{
var allocated = false;
Func<Sheet> allocate = () =>
{
if (allocated)
throw new SheetOverflowException("Terrain sheet overflow. Try increasing the tileset SheetSize parameter.");
allocated = true;
return new Sheet(new Size(tileset.SheetSize, tileset.SheetSize));
};
var sourceCache = new Dictionary<string, ISpriteSource>();
templates = new Dictionary<ushort, Sprite[]>();
sheetBuilder = new SheetBuilder(SheetType.Indexed, allocate);
foreach (var t in tileset.Templates)
templates.Add(t.Value.Id, LoadTemplate(t.Value.Image, tileset.Extensions, sourceCache, t.Value.Frames));
// 1x1px transparent tile
missingTile = sheetBuilder.Add(new byte[1], new Size(1, 1));
}
public Sprite TileSprite(TileReference<ushort, byte> r)
{
Sprite[] template;
if (!templates.TryGetValue(r.Type, out template))
return missingTile;
if (r.Index >= template.Length)
return missingTile;
return template[r.Index];
}
public Sheet Sheet { get { return sheetBuilder.Current; } }
}
}