crossing_signal

Pedestrian crossing signal for tram

Vars
amber_distance_threshold	Proximity threshold for amber warning (slow people may be in danger). This is specific to Tramstation and may need to be adjusted if the map changes in the distance between tram stops.
malfunctioning	Are we malfunctioning?
red_distance_threshold
signal_direction	If the signal is facing east or west
signal_state	green, amber, or red.
tram_id	The ID of the tram we control
tram_ref	Weakref to the tram piece we control
Procs
find_tram	Finds the tram, just like the tram computer
on_tram_travelling	Only process if the tram is actually moving
set_signal_state	Set the signal state and update appearance.
update_operating	Update processing state.

Var Details

var
amber_distance_threshold
–

Proximity threshold for amber warning (slow people may be in danger). This is specific to Tramstation and may need to be adjusted if the map changes in the distance between tram stops.

var
malfunctioning
–

Are we malfunctioning?

var
red_distance_threshold
–

Proximity threshold for red warning (running people will likely not be able to cross) This is specific to Tramstation and may need to be adjusted if the map changes in the distance between tram stops.
- This checks the distance between the tram and the signal, and based on the current Tramstation map this is the optimal number to prevent the lights from turning red for no reason for a few moments.
- If the value is set too high, it will cause the lights to turn red when the tram arrives at another station. You want to optimize the amount of warning without turning it red unnessecarily.

var
signal_direction
–

If the signal is facing east or west

var
signal_state
–

green, amber, or red.

var
tram_id
–

The ID of the tram we control

var
tram_ref
– /datum/weakref

Weakref to the tram piece we control

Proc Details

proc
find_tram
()

Finds the tram, just like the tram computer

Locates tram parts in the lift global list after everything is done.

proc
on_tram_travelling
(/datum/source, travelling)

Only process if the tram is actually moving

proc
set_signal_state
(new_state, force)

Set the signal state and update appearance.

Arguments: new_state - the new state (XING_STATE_RED, etc) force_update - force appearance to update even if state didn't change.

proc
update_operating
()

Update processing state.

Returns whether we are still processing.

crossing_signal /obj/machinery/crossing_signal

Vars

Procs

Var Details

var amber_distance_threshold –

var malfunctioning –

var red_distance_threshold –

var signal_direction –

var signal_state –

var tram_id –

var tram_ref – /datum/weakref