/**
* Find needed chunks in the region.
*
* @param region
*/
private void findNeededChunks(Region region) {
// First, we need to group points by chunk so that we only need
// to keep one chunk in memory at any given moment
for (Vector pos : region) {
BlockVector2D chunkPos = ChunkStore.toChunk(pos);
// Unidentified chunk
if (!neededChunks.containsKey(chunkPos)) {
neededChunks.put(chunkPos, new ArrayList<Vector>());
}
neededChunks.get(chunkPos).add(pos);
}
}
/**
* Find needed chunks in the cuboid of the region.
*
* @param region
*/
private void findNeededCuboidChunks(Region region) {
Vector min = region.getMinimumPoint();
Vector max = region.getMaximumPoint();
// First, we need to group points by chunk so that we only need
// to keep one chunk in memory at any given moment
for (int x = min.getBlockX(); x <= max.getBlockX(); ++x) {
for (int y = min.getBlockY(); y <= max.getBlockY(); ++y) {
for (int z = min.getBlockZ(); z <= max.getBlockZ(); ++z) {
Vector pos = new Vector(x, y, z);
BlockVector2D chunkPos = ChunkStore.toChunk(pos);
// Unidentified chunk
if (!neededChunks.containsKey(chunkPos)) {
neededChunks.put(chunkPos, new ArrayList<Vector>());
}
neededChunks.get(chunkPos).add(pos);
}
}
}
}
