public void Add(VisibilityQueueJob job)
{
var currentAreasToGenerate = queue.SelectMany(p => p.AreasToGenerate).Distinct();
job.AreasToGenerate = job.AreasToGenerate.Except(currentAreasToGenerate).ToList();
var currentAreasToRender = queue.SelectMany(p => p.AreasToRender).Distinct();
job.AreasToRender = job.AreasToRender.Except(currentAreasToRender).ToList();
if (job.AreasToGenerate.Count > 0 ||
job.AreasToRender.Count > 0)
{
queue.Add(job);
}
}
private void ExpandVisibility()
{
AreaHelper.GetAreaRangeWithinViewDistance(view.Location, view.ViewDistanceCache, ref areaRange);
// Remove any garbage areas outside the view area
var areasOutsideRange = new List<Area>();
AreaHelper.GetAreasOutsideRange(ref areasOutsideRange, AreaCollection.Areas, areaRange);
Logger.Log<TerrainVisibility>(LogLevel.Debug, "Caching {0} rendered areas", areasOutsideRange.Count);
MoveVisibleAreasToCache(areasOutsideRange);
Logger.Log<TerrainVisibility>(LogLevel.Debug, "Entering area {0} at location {1}", areaRange, view.Location);
var job = new VisibilityQueueJob(areaRange);
// Iterate all coordinates of the current view distance (including cached areas at the edge)
for (int x = areaRange.Min.X; x <= areaRange.Max.X; x++)
{
for (int z = areaRange.Min.Z; z <= areaRange.Max.Z; z++)
{
for (int y = areaRange.Min.Y; y <= areaRange.Max.Y; y++)
{
var cachedArea = AreaCache.GetAreaAt(x, y, z);
// If the current coordinates are located at the non-visible cached area edge
if (areaRange.IsAtEdge(x, y, z))
{
var visibleArea = AreaCollection.GetAreaAt(x, y, z);
// Cache visible areas at the edge
if (visibleArea != null)
{
MoveVisibleAreaToCache(visibleArea);
}
// Generate the area if missing
else if (cachedArea == null)
{
job.AreasToGenerate.Add(new Vector3i(x, y, z));
}
}
// If the current coordinates are located within the visible area
else
{
// Turn cached areas into visible areas
if (cachedArea != null)
{
job.AreasToRender.Add(cachedArea);
}
}
}
}
}
visibilityQueue.Add(job);
}
