minecraft-commandsminecraft-java-edition
I'm trying to make a datapack and a I have a function and when I call it normally within code or Minecraft it works fine and if I run the command execute as @e[tag=robot] if block ~ ~-1 ~ air run function robot:simulate_gravity in the code it doesn't work but inside Minecraft when I call it from the chat it does work.
Any ideas why?
First make sure the chain command block is set to "always active" and in a straight line with the other leading command block. Also the chain has to start with a regular command block then the chain of chain command blocks.
As Fabian commented, use @s target selector, instead of the @a[c=1]. This target selector selects the entity executing the command. You are using the execute command so this would select the player that has sandstone beneath them.
This 'error' is indicating that the detect portion did not detect sandstone below the player.
It will say this every time it executes and it does not detect sandstone, I am standing on stone here:
Exact same command while standing on sandstone, no error and I have slowness:
Best Answer
If the function works, you must have an error with this part:
A multitude of problems could be causing this. In addition to the obvious (make sure there is an entity tagged
robot, make sure the block under the robot is air, etc.), the most likely issue is that the function is not being ranatthe robot. Instead, theif block ~ ~-1 ~ aircheck is run at the location the command was executed (at your player, or at a command block, whichever you are using).