Siren
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* This block is only available if digilines and/or mesecons are loaded.

Plays a sound repeatedly while active. Also acts as a digilines conductor.
digilines conductor.

Only the owner can dig or access the form of the locked version.

UI

Channel - digilines channel of siren.
Distance - block distance the sound can be heard (range 0 to 100).
Volume - volume the sound is played.
Sound - select Buzzer, Horn, Raid or Siren.

Mesecons
	Sound plays while mesecons power is applied.

Digilines messages

"start"
	Start the siren (turn on).

"stop"
	Stop the siren (turn off).

"distance <n>"
	Set block distance the sound can be heard. <n> should be a number
	from 1 to 100, and is trimmed to this range.

"volume <n>"
	Set the sound volume. <n> should be a number from 1 to 100, and is
	trimmed to this range.

"sound buzzer"
"sound horn"
"sound raid"
"sound siren"
	Set the sound of the siren.

"siren on"
	Activate the siren, if its on.

"siren off"
	deactivate the siren.
