How to program a command block to teleport if there is exactly one player nearby?

Question

How can I program a command block (or a combination of blocks) to teleport nearby player only if there is exactly one player nearby?

I.e. when button pressed, if there are more than one player within a radius of 6 blocks, don't teleport.

I tried two approaches:

combining /execute if score with /testfor
using testfor with a comparer block to compare with the constant 1

The first approach resulted in a syntax error.

The second approach the command block output was stuck on _ and I also couldn't find a way to enter 1 into the the comparer (no constant option in the command block documentation)

I have tested this on the latest versions of Minecraft for Android (1.5.1) and for Xbox (1.5.1), both Bedrock editions.

Is there any way to do this?

Bratworst · Answer

Testfor is in P.E.

/testfor @a[r=3]

This will activate when someone is in a 3 block radius
(Toggle the number as needed) also add c to toggle the max.

Example: testfor @a[r=3,c=5]

Comparators will produce a current from one to five which is max detection limit is 5.

Testfor was removed in version 1.13 (aka the “aquatic update”) on the computer. Also the “r” was replaced with the word “distance”. Computer players should use the following.

Execute @a[distance=3] ~ ~ ~ (your command here)

(Computer information was found on Minecraftforum.net by user OuOun)

How to program a command block to teleport if there is exactly one player nearby?

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