netease-modsdk-wiki/docs/wiki/commands/entity-counter.md

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title	category	mentions	nav_order	tags
Entity Counter	Scoreboard Systems	BedrockCommands zheaEvyline	3	system

Introduction

Sourced By Bedrock Commands Community Discord

This system allows you to track how many players/entities are there on your world and run your desired commands based on the values obtained.

Note: you cannot track entities in unloaded chunks though players can still be tracked regardless.

Setup

To be typed in Chat:

/scoreboard objectives add total dummy

If you prefer to have the objective added automatically on world initialisation, follow the process outlined in On First World Load.

System

BP/functions/entity_counter.mcfunction

scoreboard players set onlinePlayers total 0
execute as @e [type=player] run scoreboard players add onlinePlayers total 1

#Your Commands Here (examples)
execute if score onlinePlayers total matches 4.. run title @a actionbar Enough players to start game.
execute if score onlinePlayers total matches ..3 run title @a actionbar Not enough players.

Here we have used a FakePlayer name onlinePlayers and targeting @e [type=player] to track how many players are currently on the world. However you may use any FakePlayer name and target any entity you might need. Such as @e [type=creeper]

Similarly we're running a /title command as an example:

• a) when there are 4 or more players 4..
• b) when there are 3 players or less ..3

You can edit this as well to suit your need.

Explanation

• The first two commands in the system sets the FakePlayer name's score to 0 (here onlinePlayers) and from each loaded entity we want to track (here type=player) it will add a score to the specified FakePlayer name (here onlinePlayers)

Now based on the values obtained we can use the /execute if score command to run our desired commands when certain values are met.

• n any number n
• n.. any number n and above
• ..n any number n and below
• n1..n2 any number n1 to any number n2.

Tick JSON

If you are using functions instead of command blocks, the entity_counter function must be added to the tick.json in order to loop and run it continuously. Multiple files can be added to the tick.json by placing a comma after each string. Refer to Functions documentation for further info.

BP/functions/tick.json

{
  "values": [
    "entity_counter"
  ]
}

If using functions, your pack folder structure will be be as follows:

<FolderView :paths="[ 'BP', 'BP/functions', 'BP/pack_icon.png', 'BP/manifest.json', 'BP/functions/entity_counter.mcfunction', 'BP/functions/tick.json' ]"

Note: the scoreboard names (in this case: 'total') may end up being used by other people. Appending _ and a set of randomly generated characters after would be a choice that reduces the probability of collisions. Similar technique can be employed for the .mcfunction filenames. Ex:

• total_0fe678
• entity_counter_0fe678.mcfunction