Datapack Debugger

# 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 <key>`, 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`.