Описание
# Datapack Breakpoint
## Introduce
This is a fabric mod for Minecraft 1.21, which allows you to set breakpoints in the game and "freeze" the game when
the breakpoint is reached.
## Usage
* Set a breakpoint
In datapack, you can insert `#breakpoint` into .mcfunction file to set a breakpoint. For example:
```mcfunction
#test:test
say 1
say 2
#breakpoint
say 3
say 4
```
In this case, after the game executes `say 2`, the game will be "frozen" because it meets the breakpoint.
When the game is "frozen", you can still move around, do whatever you want, just like execute the command `tick freeze`.
So you can check the game state, or do some debugging.
* Step
When the game is "frozen", you can use the command `/breakpoint step` to execute the next command. In above example,
after the game meets the breakpoint, you can use `/breakpoint step` to execute `say 3`, and then use `/breakpoint step`
to execute `say 4`. When all commands are executed, the game will be unfrozen and continue running.
* Continue
When the game is "frozen", you can use the command `/breakpoint move` to unfreeze the game and continue running.
* Get Macro Arguments
By using `/breakpoint get `, you can get the value of the macro argument if the game is executing a macro function.
For example:
```mcfunction
#test:test_macro
say start
#breakpoint
$say $(msg)
say end
```
After executing `function test:test_macro {"msg":"test"}`, we passed the value `test` to the macro argument `msg` and
then the game will pause before `$say $(msg)`. At this time, you can use `/breakpoint get msg` to get the value `test`.