private LuaTable GetNativeContainerCore(IDataContainer container)
{
// Makes the container friendly :)
FriendLuaDataContainer fc = container as FriendLuaDataContainer;
// Sanity check.
if (fc == null)
{
throw new InvalidOperationException("The container has not been created by this instance of LuaDataFactory.");
}
// Returns the container.
return(fc.Table);
}
private FriendLuaDataContainer CreateContainerCore(LuaTable native, bool protectFromGC = false)
{
// Gets a protected version of the table if needed.
if (protectFromGC)
{
native = _luaState.SafeProtectTableFromGC(native);
}
// Creates a new container.
FriendLuaDataContainer ldc = new FriendLuaDataContainer(native, _luaState, this);
// Returns the container.
return(ldc);
}
private WherigoObject GetWherigoObjectCore(
LuaTable obj,
bool dontFailIfNotWigEntity = false,
bool forceProtectFromGC = false,
bool allowsNullTable = false,
Type typeToCompare = null)
{
// Sanity check.
if (obj == null)
{
if (!allowsNullTable)
{
throw new ArgumentNullException("Null table argument is not allowed.");
}
return(null);
}
// Gets the class of the entity.
string cn = _luaState.SafeGetField <string>(obj, "ClassName");
if (cn == null)
{
if (dontFailIfNotWigEntity)
{
return(null);
}
throw new InvalidOperationException("obj has no ClassName string property.");
}
// Does the entity have an ObjIndex?
// YES -> it should be in the AllZObjects table, so retrieve or make it.
// NO -> make it anyway.
WherigoObject ret = null;
double? oiRaw = _luaState.SafeGetField <double?>(obj, "ObjIndex");
if (oiRaw == null)
{
// Creates a container for the table.
// It is not protected from GC by default.
LuaDataContainer ldc = CreateContainerCore(obj, forceProtectFromGC);
// Immediately wraps the table into its corresponding class.
if ("ZonePoint" == cn)
{
ret = new ZonePoint(ldc);
}
else if ("ZCommand" == cn || "ZReciprocalCommand" == cn)
{
ret = new Command(
ldc,
MakeCommandCalcTargetObjectsInstance(ldc),
MakeCommandExecuteCommandInstance(ldc)
);
}
else if ("Distance" == cn)
{
ret = new Distance(ldc);
}
}
else
{
// Tries to get the object from the cache if it is not
// the player or cartridge object.
int oi = (int)oiRaw.Value;
bool isPlayer = oi < 0;
bool isCartridge = oi == 0;
Node node;
if (!isPlayer && !isCartridge)
{
bool hasValue;
lock (_syncRoot)
{
hasValue = _wEntities.TryGetValue(oi, out node);
}
// The object is known, returns it.
if (hasValue)
{
ret = node.Object;
// Double check the classname.
string cachedCn = ret.DataContainer.GetString("ClassName");
if (cn != cachedCn)
{
throw new InvalidOperationException(String.Format("The object with id {0} is known to have class {1}, but class {2} was requested.", oi, cachedCn ?? "<null>", cn ?? "<null>"));
}
}
}
// The object is not known, make it and create a node for it.
if (ret == null)
{
// Creates a GC-protected container for the table.
FriendLuaDataContainer ldc = CreateContainerCore(obj, true);
// Creates the object.
if ("ZInput" == cn)
{
ret = new Input(
ldc,
MakeInputRunOnGetInputInstance(ldc)
);
}
else if ("ZTimer" == cn)
{
ret = new Timer(ldc);
}
else if ("ZCharacter" == cn)
{
if (isPlayer && _helper.Player != null)
{
ret = _helper.Player;
}
else
{
ret = new Character(
ldc,
MakeUIObjectRunOnClickInstance(ldc)
);
}
}
else if ("ZItem" == cn)
{
ret = new Item(
ldc,
MakeUIObjectRunOnClickInstance(ldc)
);
}
else if ("ZTask" == cn)
{
ret = new Task(
ldc,
MakeUIObjectRunOnClickInstance(ldc)
);
}
else if ("Zone" == cn)
{
ret = new Zone(
ldc,
MakeUIObjectRunOnClickInstance(ldc)
);
}
else if ("ZMedia" == cn)
{
// Gets the ZMedia from the Cartridge which has the same Id.
Media media = _helper.Cartridge.Resources.Single(m => m.MediaId == oi);
// Injects the data container with metadata about the media.
media.DataContainer = ldc;
// The returned object is the media.
ret = media;
}
else if ("ZCartridge" == cn)
{
// Sanity checks if the Cartridge GUIDs match.
string baseId = _helper.Cartridge.Guid;
string reqId = ldc.GetString("Id");
if (baseId != reqId)
{
//throw new InvalidOperationException(String.Format("Requested Cartridge with id {0}, but only knows Cartridge with id {1}.", reqId, baseId));
System.Diagnostics.Debug.WriteLine("LuaDataFactory: WARNING: " + String.Format("Requested Cartridge with id {0}, but only knows Cartridge with id {1}.", reqId, baseId));
}
// Returns the cartridge object.
ret = _helper.Cartridge;
// Binds the cartridge container if the cartridge is unbound.
if (ret.DataContainer == null)
{
ret.DataContainer = ldc;
}
}
else
{
throw new InvalidOperationException("obj has an unknown classname: " + cn);
}
// Creates a node and registers it. Cartridge and player are not registered.
if (!isPlayer && !isCartridge)
{
node = new Node()
{
Container = ldc,
Object = ret
};
lock (_syncRoot)
{
_wEntities.Add(oi, node);
}
}
}
}
// Final sanity checks.
if (ret == null)
{
throw new InvalidOperationException("Returned value was not computed.");
}
if (typeToCompare != null && !typeToCompare.IsAssignableFrom(ret.GetType()))
{
throw new InvalidOperationException(String.Format("The wherigo object is known to have type {0}, not {1} as requested.", ret.GetType().FullName, typeToCompare.FullName));
}
return(ret);
}
