Blocks

How can I get all blocks in a level and replace all stone blocks with dirt blocks?

 

That sounds like the most laggy plugin ever. Can you show proof of a previous attempt at creation?

 

I don't have any code at the moment. I only need to know how to get all blocks
For example:

PHP:

Server::getInstance()->getDefaultLevel()->getBlocks()?????
And than foreach and check the id

 

ALL blocks in a level? That might take days to compute and you will be annoyed by many memory leak problems when using setBlock spammy. The only solution would be to replace the blocks in a selection of chunk, with 1 subchunk in one tick (with a RepeatingTask), so the server would still be responsive and can clear its caches.
Also don't use Server::getInstance()

PHP:

/** @var $level Level */
//Kill me for this crappy way of finding the max x and max y values for chunks
//And also this won't really work, there might be a single chunk missing and then you would end up missing chunks behind that.
/** BEGIN CRAPPY CODE */
$maxPX = 0;
while($level->getChunk($maxPX, 0) !== null){
   $maxPX++;
}
$minPX = 0;
while($level->getChunk($minPX, 0) !== null){
   $minPX--;
}
$maxPY = 0;
while($level->getChunk(0, $maxPY) !== null){
   $maxPY++;
}
$minPY = 0;
while($level->getChunk(0, $minPY) !== null){
   $minPY--;
}
//and btw the server will crash on big worlds, here too many chunks loaded
//now basically you need to store these values in your repeating task and go through the chunks or subchunks. Please note that on big worlds this might take weeks. Have fun, just don't do it.
//Just for completeness, here is how you replace blocks in a chunk (not subchunk):
$chunk = $level->getChunk($currX, $currY);
//for loop through 0-15 $cbX and 0-15 $cbZ and 0-255 $cbY
if($chunk->getBlockId($cbX, $cbY, $cbZ) == /*whatever*/){
$chunk->setBlockId($cbX, $cbY, $cbZ, /*whatever*/);
}


Conclusion: DO NOT DO THIS WITH POCKETMINE. WRITE A SOFTWARE WHICH DIRECTLY EDITS THE LEVEL FILES, OR USE ONE LIKE MCEDIT.

 

Why not?

 

I wonder if it's possible to NBT::readCompressed(...every chunk file) and then replace block ids. That'll be a lot quicker.

 

If you don't know how to program, don't post in the Development section. maybe try facepalm.

 

But what is wrong with getInstance?

 

Why do you want to do this? Wouldn't it be much more efficient to just make a very simple world generator maybe I'm missing something