111 lines
3.2 KiB
C#
111 lines
3.2 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using OpenRA.FileSystem;
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namespace OpenRA.Graphics
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{
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public sealed class Theater : IDisposable
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{
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readonly Dictionary<ushort, Sprite[]> templates = new Dictionary<ushort, Sprite[]>();
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readonly SheetBuilder sheetBuilder;
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readonly Sprite missingTile;
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TileSet tileset;
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public Theater(TileSet tileset)
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{
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this.tileset = tileset;
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var allocated = false;
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Func<Sheet> allocate = () =>
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{
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if (allocated)
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throw new SheetOverflowException("Terrain sheet overflow. Try increasing the tileset SheetSize parameter.");
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allocated = true;
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return new Sheet(new Size(tileset.SheetSize, tileset.SheetSize));
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};
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sheetBuilder = new SheetBuilder(SheetType.Indexed, allocate);
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templates = new Dictionary<ushort, Sprite[]>();
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var frameCache = new FrameCache(Game.ModData.SpriteLoaders, tileset.Extensions);
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foreach (var t in tileset.Templates)
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{
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var allFrames = frameCache[t.Value.Image];
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var frames = t.Value.Frames != null ? t.Value.Frames.Select(f => allFrames[f]).ToArray() : allFrames;
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var sprites = frames.Select(f => sheetBuilder.Add(f));
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// Ignore the offsets baked into R8 sprites
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if (tileset.IgnoreTileSpriteOffsets)
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sprites = sprites.Select(s => new Sprite(s.Sheet, s.Bounds, float2.Zero, s.Channel, s.BlendMode));
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templates.Add(t.Value.Id, sprites.ToArray());
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}
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// 1x1px transparent tile
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missingTile = sheetBuilder.Add(new byte[1], new Size(1, 1));
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Sheet.ReleaseBuffer();
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}
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public Sprite TileSprite(TerrainTile r)
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{
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Sprite[] template;
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if (!templates.TryGetValue(r.Type, out template))
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return missingTile;
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if (r.Index >= template.Length)
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return missingTile;
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return template[r.Index];
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}
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public Rectangle TemplateBounds(TerrainTemplateInfo template, Size tileSize, TileShape tileShape)
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{
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Rectangle? templateRect = null;
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var i = 0;
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for (var y = 0; y < template.Size.Y; y++)
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{
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for (var x = 0; x < template.Size.X; x++)
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{
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var tile = new TerrainTile(template.Id, (byte)(i++));
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var tileInfo = tileset.GetTileInfo(tile);
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// Empty tile
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if (tileInfo == null)
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continue;
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var sprite = TileSprite(tile);
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var u = tileShape == TileShape.Rectangle ? x : (x - y) / 2f;
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var v = tileShape == TileShape.Rectangle ? y : (x + y) / 2f;
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var tl = new float2(u * tileSize.Width, (v - 0.5f * tileInfo.Height) * tileSize.Height) - 0.5f * sprite.Size;
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var rect = new Rectangle((int)(tl.X + sprite.Offset.X), (int)(tl.Y + sprite.Offset.Y), (int)sprite.Size.X, (int)sprite.Size.Y);
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templateRect = templateRect.HasValue ? Rectangle.Union(templateRect.Value, rect) : rect;
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}
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}
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return templateRect.HasValue ? templateRect.Value : Rectangle.Empty;
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}
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public Sheet Sheet { get { return sheetBuilder.Current; } }
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public void Dispose()
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{
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sheetBuilder.Dispose();
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}
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}
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}
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