/// <summary>
/// Loads a tile map from an Xml file.
/// </summary>
/// <param name="tileMapFilePath">Path to the tile map Xml file.</param>
/// <returns>Tile map created from the specified Xml file.</returns>
public static TileMap LoadTileMap(string tileMapFilePath)
{
// Import Xml file as XmlDocument
XmlDocument tileSetFile = new XmlDocument();
tileSetFile.Load(MAPS_BASE_PATH + tileMapFilePath);
XmlNode tileMapParentNode = tileSetFile.DocumentElement;
// Array of tile set images
TileSetImage[] tileSetArray = new TileSetImage[int.Parse(tileMapParentNode["TileSetCount"].InnerText)];
// Parse tile dimensions
string[] tileDimensionsSplitString = tileMapParentNode["TileDimensions"].InnerText.Split(',');
Dimensions2 tileDimensions;
tileDimensions.X = int.Parse(tileDimensionsSplitString[0]);
tileDimensions.Y = int.Parse(tileDimensionsSplitString[1]);
// Create individual tile set images
foreach (XmlNode currentTileSetNote in tileMapParentNode.SelectNodes("TileSet"))
{
int tileSetIndex = int.Parse(currentTileSetNote["Index"].InnerText);
string fileName = currentTileSetNote["FileName"].InnerText;
// Parse tile set dimensions
string[] tileSetDimensionsSplitString = currentTileSetNote["Dimensions"].InnerText.Split(',');
Dimensions2 dimensions;
dimensions.X = int.Parse(tileSetDimensionsSplitString[0]);
dimensions.Y = int.Parse(tileSetDimensionsSplitString[1]);
tileSetArray[tileSetIndex] = new TileSetImage(fileName, dimensions, tileDimensions);
}
// Parse tile map data
XmlNodeList tileMapRowNodeList = tileMapParentNode["Data"].SelectNodes("Row");
// Dimensions of the tile map
Dimensions2 tileMapDimensions;
tileMapDimensions.Y = tileMapRowNodeList.Count;
tileMapDimensions.X = 1;
for (int i = 0; i < tileMapRowNodeList[0].InnerText.Length; i++)
{
if (tileMapRowNodeList[0].InnerText[i] == ';')
{
tileMapDimensions.X++;
}
}
// Array of tiles for the tile map
Tile[,] tileArray = new Tile[tileMapDimensions.X, tileMapDimensions.Y];
for (int y = 0; y < tileMapDimensions.Y; y++)
{
string[] tileRowSplitString = tileMapRowNodeList[y].InnerText.Split(';');
for (int x = 0; x < tileMapDimensions.X; x++)
{
string tileDataString = tileRowSplitString[x];
tileDataString = tileDataString.Replace("[", String.Empty);
tileDataString = tileDataString.Replace("]", String.Empty);
string[] tileDataSplitString = tileDataString.Split(':');
int tileIndex = int.Parse(tileDataSplitString[0]);
int tileSetIndex = int.Parse(tileDataSplitString[1]);
TileCollisionValue tileCollision = TileCollisionValue.None;
if (tileDataSplitString[2] == "1")
{
tileCollision = TileCollisionValue.Solid;
}
// Create tile object
tileArray[x, y] = new Tile(tileSetArray[tileSetIndex], tileIndex, tileSetIndex, tileCollision);
tileArray[x, y].Position = new Vector2(x * tileSetArray[tileSetIndex].TileDimensions.X, y * tileSetArray[tileSetIndex].TileDimensions.Y);
}
}
// Create tile map object
TileMap tileMap = new TileMap(tileMapDimensions, tileDimensions, tileArray, tileSetArray);
return(tileMap);
}
/// <summary>
/// Saves an existing tile map to an Xml file.
/// </summary>
/// <param name="tileMap">Tile map to be saved.</param>
/// <param name="fileName">Xml file name.</param>
public static void SaveTileMap(TileMap tileMap, string fileName)
{
// Create XmlWriter object for writing to Xml
using (XmlWriter writer = XmlWriter.Create(MAPS_BASE_PATH + fileName))
{
writer.WriteStartDocument();
writer.WriteStartElement("TileMap");
// Write tile map dimensions
writer.WriteElementString("Dimensions", String.Format("{0},{1}", tileMap.Dimensions.X, tileMap.Dimensions.Y));
// Write tile element dimensions
writer.WriteElementString("TileDimensions", String.Format("{0},{1}", tileMap.TileDimensions.X,
tileMap.TileDimensions.Y));
// Write number of tile sets
int tileSetCount = tileMap.TileSetImageArray.Length;
writer.WriteElementString("TileSetCount", tileSetCount.ToString());
// Write information on individual tile sets
for (int i = 0; i < tileSetCount; i++)
{
writer.WriteStartElement("TileSet");
// Index of the tile map
writer.WriteElementString("Index", i.ToString());
// File name of the tile set
writer.WriteElementString("FileName", tileMap.TileSetImageArray[i].FileName);
// Dimensions of the tile set
writer.WriteElementString("Dimensions", String.Format("{0},{1}", tileMap.TileSetImageArray[i].TileSetDimensions.X,
tileMap.TileSetImageArray[i].TileSetDimensions.Y));
writer.WriteEndElement();
}
// Write rows of tiles
for (int y = 0; y < tileMap.TileArray.GetLength(1); y++)
{
writer.WriteStartElement("Row");
for (int x = 0; x < tileMap.TileArray.GetLength(0); x++)
{
string tileElementString = "[";
tileElementString += tileMap.TileArray[x, y].TileIndex;
tileElementString += ":";
tileElementString += tileMap.TileArray[x, y].TileSetIndex;
tileElementString += ":";
switch (tileMap.TileArray[x, y].CollisionValue)
{
case TileCollisionValue.Solid:
tileElementString += "1";
break;
default:
tileElementString += "0";
break;
}
tileElementString += "]";
// If this is not the last line in the row add a ';'
if (x != (tileMap.TileArray.GetLength(0) - 1))
{
tileElementString += ";";
}
writer.WriteString(tileElementString);
}
writer.WriteEndElement();
}
writer.WriteEndElement();
writer.WriteEndDocument();
}
}
