/// <summary>
/// Parses Xml to populate the level with enemies, objects, etc.
/// </summary>
/// <param name="doc">XmlDocument containing level data.</param>
/// <param name="engine">Game engine.</param>
/// <returns></returns>
protected void initializeLevelFromXml(XmlDocument doc, Engine engine)
{
// First load the tiles
XmlElement ele = (XmlElement)doc.GetElementsByTagName("level")[0];
width_ = Convert.ToInt32(ele.GetAttribute("numTilesWide"));
height_ = Convert.ToInt32(ele.GetAttribute("numTilesTall"));
tiles_ = new int[height_, width_];
XmlNodeList tList = doc.GetElementsByTagName("tile");
for (int i = 0; i < height_; i++)
{
for (int j = 0; j < width_; j++)
{
XmlElement ele2 = (XmlElement)tList[j + i * width_];
int tempInt = Convert.ToInt32(ele2.GetAttribute("index"));
tiles_[i, j] = tempInt;
}
}
// Load the tileset similar to this
XmlElement tilesetEle = (XmlElement)doc.GetElementsByTagName("tileset")[0];
if (tilesetEle == null)
{
tileSet_ = Tileset.getTilesetFromContent(@"XML\defaultTileset", engine);
}
else
{
tileSet_ = Tileset.getTilesetFromContent(tilesetEle.InnerText, engine);
}
// Now load the enemies
tList = doc.GetElementsByTagName("enemy");
for (int i = 0; i < tList.Count; i++)
{
parseEnemy(tList[i]);
}
// Now load the healthBoxes, ammoBoxes, weapon pickups, and level transitions
tList = doc.GetElementsByTagName("item");
for (int i = 0; i < tList.Count; i++)
{
parseItem(tList[i]);
}
tList = doc.GetElementsByTagName("overlay");
for (int i = 0; i < tList.Count; i++)
{
parseOverlay(tList[i]);
}
// Load player location from file
if (doc.GetElementsByTagName("playerLocation").Count > 0)
{
XmlElement playerLocation = (XmlElement)doc.GetElementsByTagName("playerLocation")[0];
playerStartLocation_ = new Vector2((float)Convert.ToInt32(playerLocation.GetAttribute("x")), (float)Convert.ToInt32(playerLocation.GetAttribute("y")));
}
//TODO: get from XML
//player_ = new ActuatedMainPlayer(pipeline, null, new Vector2(100f, 200f), new Vector2(1.0f, 0.0f));
//
player_ = null;
}
/// <summary>
/// Constructs a TileSet from an XmlDocument.
/// </summary>
/// <param name="doc">XML data containing Tileset related tags.</param>
/// <param name="spriteBatch">Sprite batch which will draw the tiles.</param>
/// <param name="graphics">Graphics device which will draw the tiles.</param>
/// <returns>The constructed TileSet.</returns>
protected static Tileset getTilesetFromXML(XmlDocument doc, SpriteBatch spriteBatch, GraphicsDevice graphics)
{
Tileset returnTileset = new Tileset();
XmlElement ele = (XmlElement)doc.GetElementsByTagName("image-file")[0];
string image_file = ele.InnerText;
ele = (XmlElement)doc.GetElementsByTagName("tile-size")[0];
int tile_size_x = Convert.ToInt32(ele.GetAttribute("x"));
int tile_size_y = Convert.ToInt32(ele.GetAttribute("y"));
ele = (XmlElement)doc.GetElementsByTagName("total-tiles")[0];
int total_tiles = Convert.ToInt32(ele.InnerText);
ele = (XmlElement)doc.GetElementsByTagName("tiles-high")[0];
int tiles_high = Convert.ToInt32(ele.InnerText);
ele = (XmlElement)doc.GetElementsByTagName("tiles-wide")[0];
int tiles_wide = Convert.ToInt32(ele.InnerText);
XmlNodeList heightsNodes = doc.GetElementsByTagName("tile-heights");
if (heightsNodes.Count != 1)
{
throw new Exception("Error in Tileset XML, should be exactly one tile-heights tag");
}
XmlNode heightsNode = heightsNodes[0];
if (heightsNode.ChildNodes.Count != total_tiles)
{
throw new Exception("Number of height tags do not match total-tiles");
}
for (int i = 0; i < heightsNode.ChildNodes.Count; i++)
{
XmlElement e = (XmlElement)heightsNode.ChildNodes[i];
bool lowH = e.GetAttribute("l").ToLower() == "true";
bool highH = e.GetAttribute("h").ToLower() == "true";
Height h = new Height(lowH, highH);
returnTileset.heights_.Add(i, h);
}
returnTileset.TILE_SIZE_X = tile_size_x;
returnTileset.TILE_SIZE_Y = tile_size_y;
returnTileset.texture_ = new GameTexture(image_file,
spriteBatch,
graphics,
calculateImageDimensions(total_tiles, tiles_wide, tiles_high, tile_size_x, tile_size_y));
return returnTileset;
}
