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Depth Counter

Sends a message to the chat every 200 meters

Regex expressions meaninng:

^(?<depth>\d*[02468]00)$

^ defines the start of the string.
?<depth> is a named capture group.
\d means any digit, * is greedy quantifier(attempts to match \d between 0 and infinite times)(greedy tries to match as much times as possible)
[02468] means that the value has to literally match any of these digits.
00 means that the value has to literally match 00.
$ defines the end of the string.


So the regex captures any positive numerical value ending with: 000, 200, 400, 600, 800