The three tools
/bb tools puts all three on your hotbar. Nothing of yours is lost: if the hotbar is full, what was there moves into your inventory.
Probe
Reads any block: its power level, strong or weak power, quasi-connectivity, what it powers and what it updates.
Recorder
Selects a box, records the circuit inside it, and replays it one step at a time - only for you.
Truth Tester
Marks inputs and outputs and builds the truth table, naming the gate when it is a standard one.
/bb on its own opens the menu. /bb menu dialog | inventory | auto picks the kind of menu you get, and it is remembered.
Probe & Scope
Look at a block with the Probe to read it. The Scope is a four-channel oscilloscope on a map:
| Command | What it does |
|---|---|
/bb scope | Puts the Scope map on your hotbar |
/bb scope add | Adds the block you look at as a channel (up to 4). Left-click with the Probe does the same. |
/bb scope hold | Freezes the trace or sets it running again. Right-click with the Probe does the same. |
/bb scope clear | Removes every channel |
/bb scope from-recording | Draws the channels from your last recording, so trace and replay match |
/bb unlock | Releases every block the Probe has locked onto |
Recorder & replay
- Mark the box: left-click a corner with the Recorder (
/bb pos1), right-click the opposite corner (/bb pos2). A box can hold up to 16,384 blocks. - Arm it with
/bb record. Recording starts at the first change inside the box. Addphysicsto record block updates too. - Run your circuit.
/bb stopends the recording (or cancels an armed one). /bb replayplays it back step by step, only for you - the world is untouched. Step with/bb next(or right-click with the Recorder) and/bb prev; leave with/bb exit.
/bb recording [page] shows the recording as text. If several people are recording at once and the server is at its limit, you are told the recorder is busy - try again in a moment.
Truth Tester
| Command | What it does |
|---|---|
/bb truth input | Marks the block you look at as an input (A-D). Left-click with the Truth Tester does the same. |
/bb truth output | Marks it as an output (X-Z). Right-click does the same. |
/bb truth show | The table in chat. Names the gate if it is a standard one, otherwise says which rows are still missing. |
/bb truth clear | Clears the marks and the table |
Component library
A shelf of ready-made circuits - adders, dividers, memory, displays and more - you can place on your plot.
| Command | What it does |
|---|---|
/bb component list | Every component, shelf by shelf |
/bb component place [what] | Starts placing: a name, a shelf, or everything from the first |
/bb component undo | Takes back your last placement; again for the one before |
/bb component save <name> [group/category] [what it is] | Saves the box you marked with the Recorder as your own component |
Placing is shared fairly: big components go in a little at a time, so the server stays smooth for everyone. Very large builds take longer to place, not longer to load the server.
Item supply & drain
Test item sorters without filling chests by hand. /bb items marker gives you a marker block:
- Marker on top of a hopper = a supply. Right-click it and put in the item to feed; the hopper is kept topped up with it.
- A hopper pointing into a marker = a drain: a bottomless chest that counts the items it receives.
The marker's colour names the channel. /bb items shows the rates.
Camera mode
/c switches to spectator right where you stand, to look inside a build. /s brings you back to the same spot and game mode.
More help
/bb commands lists every command by group, with what each does. /bb manual gives you the whole guide as a book.