/// <summary>
/// Sets the tile grid for this layer.
/// </summary>
/// <param name="tileGrid">The tile grid this Layer manages.</param>
/// <param name="parentMap">The reference to the parent map of this Layer.</param>
public void SetTileGrid(TileGrid tileGrid)
{
Tiles = new TileGrid(tileGrid.Width, tileGrid.Height);
// data is left-to-right, top-to-bottom
for (int x = 0; x < tileGrid.Width; x++)
{
for (int y = 0; y < tileGrid.Height; y++)
{
/* It is extremely important to clone instead of simply passing in tileGrid[x, y], as Clone() ensures the stored entity is an separate object, not a reference that dissapears when the parameter tileGrid is destroyed. */
Tiles[x, y] = tileGrid[x, y].Clone();
}
}
}
private void LoadLayer(XmlReader reader)
{
// We are now at the <layer> node.
// Read the attribute(s) 'name'.
// TODO: Should we make the name a #? Like the layer name is '1', and that indicates the draw order.
string layerName = reader["name"];
XmlReader layerDataReader = reader.ReadSubtree();
layerDataReader.ReadToFollowing("data");
// We are now at the <data> node.
#region TODO: Handle XML, Base64, GZIP, and ZLib Compression
/*
var encoding = layerDataReader.GetAttribute("encoding");
var compressor = reader.GetAttribute("compression");
switch (encoding)
{
case "base64":
{
int dataSize = (TileDimensions * TileDimensions * 4) + 1024;
var buffer = new byte[dataSize];
reader.ReadElementContentAsBase64(buffer, 0, dataSize);
Stream stream = new MemoryStream(buffer, false);
if (compressor == "gzip")
stream = new GZipStream(stream, CompressionMode.Decompress, false);
using (stream)
using (var br = new BinaryReader(stream))
{
for (int i = 0; i < tileArray.Length; i++)
tileArray[i] = br.ReadInt32();
}
continue;
};
default:
throw new Exception("Your map layer, called '" + name + "' is encoded with an unrecognized compression algorithm. The accepted values are XML, Base64, and GZIP. Don't use ZLib!");
}*/
#endregion
XmlReader layerDataTileReader = layerDataReader.ReadSubtree();
// We are now at the <tile> node. There are a lot of these...
TileGrid layerTiles = new TileGrid(Width, Height, true);
Layer layer = new Layer();
layer.Name = layerName;
int lineReadIndex = 0; // the # of lines read by the parser
while (layerDataTileReader.ReadToFollowing("tile"))
{
int tilegid = int.Parse(layerDataTileReader["gid"]);
layerTiles[lineReadIndex % Width, lineReadIndex / Width].Id = tilegid;
layerTiles[lineReadIndex % Width, lineReadIndex / Width].ParentLayer = layer;
lineReadIndex++;
}
layer.Tiles = layerTiles;
layer.ParentMap = (Map)this;
Layers.Add(layer);
}
