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fulpstation/code/__HELPERS/radio.dm
John Willard 7199947c08 [MDB IGNORE] [IDB IGNORE] WIP TGU (#1427)
Several months worth of updates.

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Co-authored-by: A miscellaneous Fern <80640114+FernandoJ8@users.noreply.github.com>
Co-authored-by: Pepsilawn <reisenrui@gmail.com>
Co-authored-by: Ray <64306407+OneAsianTortoise@users.noreply.github.com>
Co-authored-by: Cure221 <106662180+Cure221@users.noreply.github.com>
2025-11-06 08:20:20 -05:00

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/// Ensure the frequency is within bounds of what it should be sending/receiving at
/proc/sanitize_frequency(frequency, free = FALSE, syndie = FALSE)
frequency = round(frequency)
if(free)
. = clamp(frequency, MIN_FREE_FREQ, MAX_FREE_FREQ)
else
. = clamp(frequency, MIN_FREQ, MAX_FREQ)
if(!(. % 2)) // Ensure the last digit is an odd number
. += 1
if(. == FREQ_SYNDICATE && !syndie) // Prevents people from picking (or rounding up) into the syndie frequency
. = FREQ_COMMON
/// Format frequency by moving the decimal.
/proc/format_frequency(frequency)
frequency = text2num(frequency)
return "[round(frequency / 10)].[frequency % 10]"
///Opposite of format, returns as a number
/proc/unformat_frequency(frequency)
frequency = text2num(frequency)
return frequency * 10
///returns a random unused frequency between MIN_FREE_FREQ & MAX_FREE_FREQ if free = TRUE, and MIN_FREQ & MAX_FREQ if FALSE
/proc/return_unused_frequency(free = FALSE)
var/start = free ? MIN_FREE_FREQ : MIN_FREQ
var/end = free ? MAX_FREE_FREQ : MAX_FREQ
var/freq_to_check = 0
do
freq_to_check = rand(start, end)
if(!(freq_to_check % 2)) // Ensure the last digit is an odd number
freq_to_check++
while((freq_to_check == 0) || ("[freq_to_check]" in GLOB.reserved_radio_frequencies))
return freq_to_check