/// <summary>
/// parse a JsonArray (array of items) or JsonObject (single game/item)
/// </summary>
protected GardenItem ParseJson(IJsonType j, Vector2 posOffset)
{
if (j is JsonArray)
{
JsonArray ja = j as JsonArray;
Vector2 childPosOffset = posOffset;
Vector2 posPrevious = Vector2.Zero;
//Vector2 childPosPrevious = Vector2.Zero;
Vector2 sectionWidthHeight = new Vector2(999f, 999f);
GardenItem gi = null;
foreach (IJsonType jChild in ja)
{
// parse each subitem and add to gamelist
gi = ParseJson(jChild, childPosOffset);
if (gi == null)
{
continue;
}
// optional first SectionID item of a JsonArray may contain position offset info for all items
if (gi.IsSectionId)
{
childPosOffset += gi.Position;
// WARNING mis-use the posdelta field for section width/height!!
sectionWidthHeight = gi.PositionDelta;
//childPosPrevious = Vector2.Zero;
posPrevious = Vector2.Zero - Vector2.UnitX; // for first item of a section, apply a shift to align item to (0,0)
continue;
}
// calculate correct item position
if (!gi.IsPositionGiven)
{
gi.Position = posPrevious;
do
{
if (gi.IsPositionDeltaGiven)
{
gi.Position += gi.PositionDelta;
}
else
{
gi.Position += Vector2.UnitX; // advance in standard way to the right
}
// checking the automatic calculated game position with section width
if (gi.PositionX >= sectionWidthHeight.X)
{
gi.PositionY += 1;
gi.PositionX = 0;
}
} while (gamesCollection.FindGameAt(gi.Position + childPosOffset) != null);
}
// update prev item position
posPrevious = gi.Position;
// apply the section position offset
gi.PositionX += (int)childPosOffset.X;
gi.PositionY += (int)childPosOffset.Y;
// add to collection at specified position
gamesCollection.Add(gi);
}
return(null); // indicate array was last item.
}
else if (j is JsonObject)
{
// process single leaf item
GardenItem ig = new GardenItem((JsonObject)j);
ig.WreckProcessing();
// return null to indicate skip, if not valid 'trainwreck' that this client can handle.
if (!ig.IsValidWreck)
{
return(null);
}
return(ig);
}
else
{
throw new NotImplementedException("Unknown JSON type " + j + " found.");
}
}
