minecraft-commandsminecraft-java-edition
[Minecraft 1.14.4]
I want to check when a player hits a village bell in minecraft, and then perform some action.
After reading a bit on the minecraft wiki, it seems that bells have a block Entity Data entry named "keepPacked" that should be set to 1 if the bell is swaying (has been hit) or 0 if it's stationary.
I'm not sure how to access this data, or if this is even possible.
Command blocks are of Tile Entity type "Control". According to the wiki:
Control has these additional fields:
- Command: The command to issue to the server.
- SuccessCount: Represents the strength of the analog signal output by redstone comparators attached to this command block. Only updated when the command block is activated with a redstone signal.
- LastOutput: The last line of output generated by the command block. Still stored even if the gamerule commandBlockOutput is false. Appears in the GUI of the block when right-clicked, and includes a timestamp of when the output was produced.
- TrackOutput: 1 or 0 (true/false) - Unknown.
Since your command does not yield a redstone signal, the only way to detect the outcome of the command block via data tags is to read LastOutput.
/testfor @e will output a signal strength based on how many entities it finds. For example, if 5 entities are found, the signal strength outputted will travel 5 blocks.
To test for exactly one entity, you can do something like this with and add on an AND gate:
Alternatively, you can use another command block with the 'testforblock' command in it, testing for if the first command block has succeeded exactly once. The setup should look something like:
/testforblock X Y Z command_block 1 {SuccessCount:1}
Where X Y Z are the coordinates of the first command block, and the comparator should come off of this second command block.
Best Answer
You can create a scoreboard objective to detect when a player rings a bell, the command to create the scoreboard objective looks like this:
The score for a player increases by one every time that player rings a bell.