Minecraft – Detect if all minecraft players are within a certain area

minecraft-bedrock-editionminecraft-commands

I am making an minigame, and I need to detect if all players are nearby

I tried /testfor @a[r=10] but this returns true even if only one player is nearby

How can I check if all players are near?

Best Answer

In order to do this, you'll need to invert the check and the arguments.

Your old test: If there are any players in the radius, run the command.
Required new test: If there are any players outside the radius, do not run the command, otherwise run it.

Create a scoreboard objective to store the number of players outside the radius.
```
/scoreboard objectives add minigameData dummy
```
Create an always active repeating command chain of 4 blocks. Inside, place the following commands:
1. Reset the number of players outside the required range.
```
/scoreboard players set #playersOutsideRange 0
```
2. Tell everyone outside the range to add 1 to this value.
```
/execute @a[rm=10] ~ ~ ~ scoreboard players add #playersOutsideRange minigameData 1
```
3. Set a redstone block to a nearby location.
```
/setblock ? ? ? redstone_block
```
  Replace the ?s with the coordinates of a convenient location nearby.
Create an impulse command chain of 2 blocks. Place the starting block next to the location you specified in the last command. Place these commands inside:
1. Test for zero players outside the range.
```
/scoreboard players test #playersOutsideRange minigameData 0 0
```
2. CONDITIONAL: Run the command.
```
...Whatever you want...
```

Related Solutions

Minecraft – How to testfor a certain amount of players in a certain radius

There is the count target selector argument.

/tp @p[x=<X>,y=<Y>,z=<Z>,r=<Radius>,c=<Count>] x y z

To detect if there is 12 players or more, there are 2 main ways to do it. One is simply with a comparator leading from a /testfor @a[x=<X>,y=<Y>,z=<Z>,r=<Radius>], which will emmit a redstone signal strength equal to the amount of players in that area and you can run a redstone wire to activate the teleport command, or do it with a scoreboard counter.

Minecraft – How to detect death in Minecraft in a certain area

depending on the shape of your arena (square or circle), you can restrict a command to run only if entity is within a certain range. i usually use, also, execute as @a at @s, as it quite literally targets (as) everyone (@a) as if (at) they were the individual (@s).

in the instance of a cuboid (square/rectangular area), you'd want to use the x, y, z, dx, dy, and dz arguments (or settings you need to specify) to choose the area you want to limit it to;

x is the X coordinate of your first corner.
y is the Y coordinate.
z is the Z.
dx is the distance on the X axis to the opposite corner.
dy is the distance on Y.
dz is the distance on Z.

so, for an example, if i want to make a player say "hi" while in a 5x5x5 cube area, assuming the center is x0 y3 z0;

execute as @a at @s if entity @s[x=2,y=1,z=2,dx=-4,dy=4,dz=-4] run say hi

this would make it so if someone is in the area between the block at x2 y1 z2 and x-2 y5 z-2, it will run "say hi" as if that person ran the command itself.

Best Answer

Related Solutions

Minecraft – How to testfor a certain amount of players in a certain radius

Minecraft – How to detect death in Minecraft in a certain area

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