Generator
Fill and Clone Helper
Work out a /fill or /clone from two corners: the size, whether it fits the game's block limit, and commands that do a bigger job in pieces.
- Type the two corners
- Pick the block and how to fill
- Copy the commands
In the game
- Size
- 11 × 5 × 11
- Blocks in the box
- 605
Fits in one command.
Command
/fill ~-5 ~ ~-5 ~5 ~4 ~5 stone30 characters
For Java Edition 26.3. Every form this tool writes was run through the game's own command parser.
What /fill changes
| replace | Every block in the box; with a block or #tag filter only those |
| keep | Only air blocks |
| outline | Only the outer shell; the inside stays as it is |
| hollow | The outer shell, and air inside |
| destroy | Every block, breaking the old ones as if mined so they drop |
What /clone copies and how
| replace | Every block of the source |
| masked | Every block but air |
| filtered | Only the blocks a block or #tag names |
| normal | Copies; refused if the source and destination overlap |
| force | Copies even when they overlap |
| move | Copies, then fills the source with air |
Build height
| overworld | -64 | 319 |
| the_nether | 0 | 255 |
| the_end | 0 | 255 |
How the game works it out
| Block limit | 32768 blocks per command, from the game rule max_block_modifications; a world can raise it |
| Whole box counts | The limit counts every block of the box, also for hollow, outline and keep that change fewer |
| Splitting | A bigger job works as several commands of at most the limit each; the helper splits hollow into the six faces and the air inside |
| Loaded chunks | Every block of the box has to be in a loaded chunk, or the command fails |
| strict | Sets the blocks without updating the blocks around them |
| Checked in the game | Every split job was compared block for block with the same job as one command |
