搬运一批Bedrock wiki内容，完善翻译

docs/wiki/commands/entity-counter.md

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+---
+title: Entity Counter
+category: Scoreboard Systems
+mentions:
+    - BedrockCommands
+    - zheaEvyline
+nav_order: 3
+tags:
+    - system
+---
+
+## Introduction
+
+[Sourced By Bedrock Commands Community Discord](https://discord.gg/SYstTYx5G5)
+
+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.](/commands/on-first-world-load)
+
+## System
+
+<CodeHeader>BP/functions/entity_counter.mcfunction</CodeHeader>
+
+```yaml
+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.
+```
+![commandBlockChain3](/assets/images/commands/commandBlockChain/3.png)
+
+
+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](/commands/mcfunctions#tick-json) documentation for further info.
+
+<CodeHeader>BP/functions/tick.json</CodeHeader>
+```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'
+]"
+></FolderView>
+
+> **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 `