private void LoadAreas()
{
OnProgress("Building world areas");
var areas = this._xmlRoot.SelectSingleNode("ns:Areas", this._xnm);
if (areas == null)
{
throw new InvalidOperationException();
}
XmlNodeList areaList = areas.SelectNodes("ns:Area", this._xnm);
if (areaList == null)
{
throw new InvalidOperationException();
}
this._playerStartStates.Clear();
this._tileDefinitionCollections.Clear();
this._randomMonsterDistributions.Clear();
this._randomFruitDistributions.Clear();
foreach (XmlElement area in areaList)
{
var areaRect = RectangleExtensions.GetRectangleFromDefinition(area);
var startPos = (XmlElement)area.SelectSingleNode("ns:PlayerStartState", this._xnm);
if (startPos != null)
{
var pss = PlayerStartState.FromXml(startPos);
pss.Area = areaRect;
this._playerStartStates.Add(pss);
}
var tileDefinitions = area.SelectNodes("ns:TileDefinitions/ns:*", this._xnm);
if (tileDefinitions != null && tileDefinitions.Count != 0)
{
var td = TileDefinitionCollection.FromXml(tileDefinitions);
td.Area = areaRect;
this._tileDefinitionCollections.Add(td);
}
var fruitPopulation = (XmlElement)area.SelectSingleNode("ns:FruitDefinitions", this._xnm);
if (fruitPopulation != null && fruitPopulation.ChildNodes.Count != 0)
{
var fd = RandomFruitDistribution.FromXml(fruitPopulation);
fd.Area = areaRect;
this._randomFruitDistributions.Add(fd);
}
var randomMonsterDistribution = (XmlElement)area.SelectSingleNode("ns:RandomMonsterDistribution", this._xnm);
if (randomMonsterDistribution != null)
{
var md = RandomMonsterDistribution.FromXml(randomMonsterDistribution, this._xnm);
md.Area = areaRect;
this._randomMonsterDistributions.Add(md);
}
}
}
public static TileDefinitionCollection FromXml(XmlNodeList tiledefs)
{
var result = new TileDefinitionCollection();
foreach (XmlElement tiledef in tiledefs)
{
string symbol = tiledef.GetAttribute("Symbol");
switch (tiledef.Name)
{
case "Wall":
{
string texture = tiledef.GetAttribute("Tile");
var td = new TileWallDefinition(symbol, texture);
result.Add(td);
break;
}
case "Floor":
{
string texture = tiledef.GetAttribute("Tile");
bool.TryParse(tiledef.GetAttribute("IsDefault"), out var isDefault);
var td = new TileFloorDefinition(symbol, texture, isDefault);
result.Add(td);
break;
}
case "Object":
{
string description = tiledef.GetAttribute("Description");
var td = new TileObjectDefinition(symbol, description);
result.Add(td);
break;
}
}
}
var countOfDefaultFloorTiles = result._definitions.Values.OfType <TileFloorDefinition>().Count(item => item.IsDefault);
if (countOfDefaultFloorTiles > 1)
{
throw new InvalidOperationException("More than one floor tile is marked as the default.");
}
if (countOfDefaultFloorTiles == 0 && result._definitions.Values.OfType <TileFloorDefinition>().Count() > 1)
{
throw new InvalidOperationException("There are more than one floor tiles, and none of them is marked as the default.");
}
return(result);
}
public WorldArea(XmlElement area, XmlNamespaceManager xnm)
{
this.Area = RectangleExtensions.GetRectangleFromDefinition(area);
string worldStart = area.GetAttribute("WorldStart");
this.IsInitialArea = !string.IsNullOrWhiteSpace(worldStart) && bool.Parse(worldStart);
var startPos = (XmlElement)area.SelectSingleNode("ns:PlayerStartState", xnm);
if (startPos != null)
{
var pss = PlayerStartState.FromXml(startPos);
if (!this.Area.ContainsTile(pss.Position))
{
throw new InvalidOperationException("Invalid player start position - co-ordinate is not within the area.");
}
this.PlayerStartState = pss;
}
var tileDefinitions = area.SelectNodes("ns:TileDefinitions/ns:*", xnm);
if (tileDefinitions != null)
{
var td = TileDefinitionCollection.FromXml(tileDefinitions);
td.Area = this.Area;
this.TileDefinitionCollection = td;
}
var fruitPopulation = area.SelectNodes("ns:FruitDefinitions/ns:FruitDef", xnm);
if (fruitPopulation != null)
{
var fd = RandomFruitDistribution.FromXml(fruitPopulation);
fd.Area = this.Area;
this.FruitDefinitions = fd;
}
var randomMonsterDistribution = (XmlElement)area.SelectSingleNode("ns:RandomMonsterDistribution", xnm);
if (randomMonsterDistribution != null)
{
var md = RandomMonsterDistribution.FromXml(randomMonsterDistribution, xnm);
md.Area = this.Area;
this.RandomMonsterDistribution = md;
}
}
