115 lines
2.5 KiB
C#
115 lines
2.5 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.IO;
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using System.Linq;
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using OpenRA.FileFormats;
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using OpenRA.Graphics;
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namespace OpenRA.Mods.TS.SpriteLoaders
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{
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public class TmpTSLoader : ISpriteLoader
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{
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class TmpTSFrame : ISpriteFrame
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{
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public Size Size { get; private set; }
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public Size FrameSize { get { return Size; } }
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public float2 Offset { get { return float2.Zero; } }
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public byte[] Data { get; set; }
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public bool DisableExportPadding { get { return false; } }
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public TmpTSFrame(Stream s, Size size)
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{
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Size = size;
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// Ignore tile header for now
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s.Position += 52;
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Data = new byte[size.Width * size.Height];
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// Unpack tile data
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var width = 4;
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for (var i = 0; i < size.Height; i++)
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{
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var start = i * size.Width + (size.Width - width) / 2;
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for (var j = 0; j < width; j++)
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Data[start + j] = s.ReadUInt8();
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width += (i < size.Height / 2 - 1 ? 1 : -1) * 4;
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}
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// Ignore Z-data for now
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// Ignore extra data for now
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}
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}
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bool IsTmpTS(Stream s)
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{
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var start = s.Position;
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s.Position += 8;
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var sx = s.ReadUInt32();
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var sy = s.ReadUInt32();
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// Find the first frame
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var offset = s.ReadUInt32();
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if (offset > s.Length - 52)
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{
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s.Position = start;
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return false;
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}
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s.Position = offset + 12;
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var test = s.ReadUInt32();
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s.Position = start;
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return test == sx * sy / 2 + 52;
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}
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TmpTSFrame[] ParseFrames(Stream s)
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{
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var start = s.Position;
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var templateWidth = s.ReadUInt32();
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var templateHeight = s.ReadUInt32();
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var tileWidth = s.ReadInt32();
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var tileHeight = s.ReadInt32();
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var size = new Size(tileWidth, tileHeight);
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var offsets = new uint[templateWidth * templateHeight];
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for (var i = 0; i < offsets.Length; i++)
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offsets[i] = s.ReadUInt32();
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var tiles = new TmpTSFrame[offsets.Length];
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for (var i = 0; i < offsets.Length; i++)
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{
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s.Position = offsets[i];
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tiles[i] = new TmpTSFrame(s, size);
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}
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s.Position = start;
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return tiles;
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}
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public bool TryParseSprite(Stream s, out ISpriteFrame[] frames)
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{
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if (!IsTmpTS(s))
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{
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frames = null;
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return false;
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}
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frames = ParseFrames(s);
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return true;
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}
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}
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}
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