protected override bool isValidAndReady(Adjustment adjustment, Chunk chunk)
{
switch (adjustment.type)
{
/// for dirty chunks we can just go for it
case FocusAdjustmentType.Dirty:
return(true);
case FocusAdjustmentType.InFocus:
/// we can only mesh a newly in focus chunk if it's at the loaded resolution.
if (chunk.currentResolution == Chunk.Resolution.Loaded)
{
bool necessaryNeighborsAreLoaded = true;
bool necessaryNeighborsAreEmpty = chunk.isEmpty;
bool blockingNeighborsAreSolid = chunk.isSolid;
MarchingTetsMeshGenerator.ForEachRequiredNeighbor(adjustment.chunkID, lens.level, (neighborID, neighborChunk) => {
bool neighborIsWithinLevelBounds = neighborID.isWithin(Coordinate.Zero, lens.level.chunkBounds);
// check if they're loaded. out of bounds chunks will never be loaded and can be skipped
if (neighborIsWithinLevelBounds && neighborChunk.currentResolution < Chunk.Resolution.Loaded)
{
necessaryNeighborsAreLoaded = false;
return(false);
}
// out of bounds chunks will never be loaded and will always be empty, we only need to check in bounds chunks for empty
if (neighborIsWithinLevelBounds && !neighborChunk.isEmpty)
{
necessaryNeighborsAreEmpty = false;
}
// only in bounds chunks can be solid, so if it's out of bounds or not solid, we mark it so.
if (!neighborIsWithinLevelBounds || !neighborChunk.isSolid)
{
blockingNeighborsAreSolid = false;
}
return(true);
});
if (!necessaryNeighborsAreLoaded)
{
#if DEBUG
chunk.recordEvent($"Chunk is not ready for MeshGenerationAperture job, Necessary neighbors not loaded yet.");
#endif
return(false);
}
/// we don't need to load the mesh if it and it's neighbors are all solid or empty
if (blockingNeighborsAreSolid || necessaryNeighborsAreEmpty)
{
/// set mesh as empty
if (chunk.adjustmentLockType == (Chunk.Resolution.Meshed, FocusAdjustmentType.InFocus))
{
#if DEBUG
chunk.recordEvent($"Chunk can skip MeshGenerationAperture queue, {(blockingNeighborsAreSolid ? "solid chunk is hidden" : "required neighbors are all empty")}. Setting empty mesh");
#endif
chunk.setMesh(default);
return(false);
}
