internal static BlendTileData Parse(BinaryReader reader, MapParseContext context, HeightMapData heightMapData)
{
return(ParseAsset(reader, context, version =>
{
if (version < 6)
{
throw new InvalidDataException();
}
if (heightMapData == null)
{
throw new InvalidDataException("Expected HeightMapData asset before BlendTileData asset.");
}
var width = heightMapData.Width;
var height = heightMapData.Height;
var result = new BlendTileData();
result.NumTiles = reader.ReadUInt32();
if (result.NumTiles != width * height)
{
throw new InvalidDataException();
}
result.Tiles = reader.ReadUInt16Array2D(width, height);
var blendBitSize = GetBlendBitSize(version);
result.Blends = reader.ReadUIntArray2D(width, height, blendBitSize);
result.ThreeWayBlends = reader.ReadUIntArray2D(width, height, blendBitSize);
result.CliffTextures = reader.ReadUIntArray2D(width, height, blendBitSize);
if (version > 6)
{
var passabilityWidth = heightMapData.Width;
if (version == 7)
{
// C&C Generals clips partial bytes from each row of passability data,
passabilityWidth = ((passabilityWidth + 1) / 8) * 8;
}
// If terrain is passable, there's a 0 in the data file.
result.Impassability = reader.ReadSingleBitBooleanArray2D(passabilityWidth, heightMapData.Height);
}
if (version >= 10)
{
result.ImpassabilityToPlayers = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
}
if (version >= 11)
{
result.PassageWidths = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
}
if (version >= 14 && version < 25)
{
result.Taintability = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
}
if (version >= 15)
{
result.ExtraPassability = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
}
if (version >= 16 && version < 25)
{
result.Flammability = reader.ReadByteArray2DAsEnum <TileFlammability>(heightMapData.Width, heightMapData.Height);
}
if (version >= 17)
{
result.Visibility = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
}
if (version >= 24)
{
// TODO: Are these in the right order?
result.Buildability = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
result.ImpassabilityToAirUnits = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
result.TiberiumGrowability = reader.ReadSingleBitBooleanArray2D(heightMapData.Width, heightMapData.Height);
}
if (version >= 25)
{
result.DynamicShrubberyDensity = reader.ReadByteArray2D(heightMapData.Width, heightMapData.Height);
}
result.TextureCellCount = reader.ReadUInt32();
var blendsCount = reader.ReadUInt32();
if (blendsCount > 0)
{
// Usually minimum value is 1, but some files (perhaps Generals, not Zero Hour?) have 0.
blendsCount--;
}
result.ParsedCliffTextureMappingsCount = reader.ReadUInt32();
var cliffBlendsCount = result.ParsedCliffTextureMappingsCount;
if (cliffBlendsCount > 0)
{
// Usually minimum value is 1, but some files (perhaps Generals, not Zero Hour?) have 0.
cliffBlendsCount--;
}
var textureCount = reader.ReadUInt32();
result.Textures = new BlendTileTexture[textureCount];
for (var i = 0; i < textureCount; i++)
{
result.Textures[i] = BlendTileTexture.Parse(reader);
}
// Can be a variety of values, don't know what it means.
result.MagicValue1 = reader.ReadUInt32();
result.MagicValue2 = reader.ReadUInt32();
if (result.MagicValue2 != 0)
{
throw new InvalidDataException();
}
result.BlendDescriptions = new BlendDescription[blendsCount];
for (var i = 0; i < blendsCount; i++)
{
result.BlendDescriptions[i] = BlendDescription.Parse(reader, version);
}
result.CliffTextureMappings = new CliffTextureMapping[cliffBlendsCount];
for (var i = 0; i < cliffBlendsCount; i++)
{
result.CliffTextureMappings[i] = CliffTextureMapping.Parse(reader);
}
return result;
}));
}
internal static BlendTileData Parse(BinaryReader reader, MapParseContext context, HeightMapData heightMapData)
{
return(ParseAsset(reader, context, version =>
{
if (version < 6 || version > 8)
{
throw new InvalidDataException();
}
if (heightMapData == null)
{
throw new InvalidDataException("Expected HeightMapData asset before BlendTileData asset.");
}
var width = heightMapData.Width;
var height = heightMapData.Height;
var numTiles = reader.ReadUInt32();
if (numTiles != width * height)
{
throw new InvalidDataException();
}
var tiles = reader.ReadUInt16Array2D(width, height);
var blends = reader.ReadUInt16Array2D(width, height);
var threeWayBlends = reader.ReadUInt16Array2D(width, height);
var cliffTextures = reader.ReadUInt16Array2D(width, height);
bool[,] passability = null;
if (version > 6)
{
var passabilityWidth = heightMapData.Width;
if (version == 7)
{
// C&C Generals clips partial bytes from each row of passability data,
// if the border width is large enough to fully contain the clipped data.
if (passabilityWidth % 8 <= 6 && passabilityWidth % 8 <= heightMapData.BorderWidth)
{
passabilityWidth -= passabilityWidth % 8;
}
}
// If terrain is passable, there's a 0 in the data file.
passability = reader.ReadSingleBitBooleanArray2D(passabilityWidth, heightMapData.Height);
}
var textureCellCount = reader.ReadUInt32();
var blendsCount = reader.ReadUInt32();
if (blendsCount > 0)
{
// Usually minimum value is 1, but some files (perhaps Generals, not Zero Hour?) have 0.
blendsCount--;
}
var parsedCliffBlendsCount = reader.ReadUInt32();
var cliffBlendsCount = parsedCliffBlendsCount;
if (cliffBlendsCount > 0)
{
// Usually minimum value is 1, but some files (perhaps Generals, not Zero Hour?) have 0.
cliffBlendsCount--;
}
var textureCount = reader.ReadUInt32();
var textures = new BlendTileTexture[textureCount];
for (var i = 0; i < textureCount; i++)
{
textures[i] = BlendTileTexture.Parse(reader);
}
var magicValue1 = reader.ReadUInt32();
if (magicValue1 != 0)
{
throw new InvalidDataException();
}
var magicValue2 = reader.ReadUInt32();
if (magicValue2 != 0)
{
throw new InvalidDataException();
}
var blendDescriptions = new BlendDescription[blendsCount];
for (var i = 0; i < blendsCount; i++)
{
blendDescriptions[i] = BlendDescription.Parse(reader);
}
var cliffTextureMappings = new CliffTextureMapping[cliffBlendsCount];
for (var i = 0; i < cliffBlendsCount; i++)
{
cliffTextureMappings[i] = CliffTextureMapping.Parse(reader);
}
return new BlendTileData
{
NumTiles = numTiles,
Tiles = tiles,
Blends = blends,
ThreeWayBlends = threeWayBlends,
CliffTextures = cliffTextures,
Passability = passability,
TextureCellCount = textureCellCount,
Textures = textures,
MagicValue1 = magicValue1,
MagicValue2 = magicValue2,
BlendDescriptions = blendDescriptions,
ParsedCliffTextureMappingsCount = parsedCliffBlendsCount,
CliffTextureMappings = cliffTextureMappings
};
}));
}