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fgdata/Aircraft/Instruments-3d/glider/vario/ilec-sc7/ilec-sc7.nas

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io.include("Aircraft/Generic/soaring-instrumentation-sdk.nas");
# Initialize exported properties
setprop("/instrumentation/ilec-sc7/volume", 0.8);
setprop("/instrumentation/ilec-sc7/audio", 2);
setprop("/instrumentation/ilec-sc7/mode", 1);
setprop("/instrumentation/ilec-sc7/sensitivity", 3);
setprop("/instrumentation/ilec-sc7/lcd-digits-abs", 0);
setprop("/instrumentation/ilec-sc7/lcd-digits-sgn", 0);
setprop("/instrumentation/ilec-sc7/te-reading-mps", 0);
setprop("/instrumentation/variometer/te-reading-mps", 0);
# Helper function for updating lcd display
var update_lcd_props = func(value) {
setprop("/instrumentation/ilec-sc7/lcd-digits-abs", math.abs(value));
setprop("/instrumentation/ilec-sc7/lcd-digits-sgn", (value < 0) ? 0 : 1);
};
# Instrument setup:
# One TE probe feeds two vario needles and a 25s averager.
# LCD digits are controlled by the.. um.. lcd_controller
# that switches between battery level, temperature and averager
# depending on mode switch posiion.
# Why a second needle? A digital vario is usually installed together
# with a mechanical one, so now we are at it, why not provide a bonus
# TE reading for it and avoid loading an extra script?
var probe = TotalEnergyProbe.new();
var sc7_needle = Dampener.new(
input: probe,
dampening: 3,
on_update: update_prop("/instrumentation/ilec-sc7/te-reading-mps"));
var extra_needle = Dampener.new(
input: probe,
dampening: 2.7,
on_update: update_prop("/instrumentation/variometer/te-reading-mps"));
var averager = Averager.new(
input: probe,
buffer_size: 25);
var battery_level = { output: 9.9 };
var temperature = PropertyReader.new(
property: "environment/temperature-degc",
scale: 0.1);
var lcd_controller = InputSwitcher.new(
inputs: [battery_level, averager, temperature],
active_input: 1,
on_update: update_lcd_props);
# Subscribe property listeners for instrument switches
setlistener("instrumentation/ilec-sc7/mode",
func(n) { lcd_controller.select_input(n.getValue()) }, 0, 0);
setlistener("instrumentation/ilec-sc7/sensitivity",
func(n) { sc7_needle.dampening = n.getValue() }, 0, 0);
# Wrap everything together into an instrument
var fast_instruments = UpdateLoop.new(
update_period: 0,
components: [probe, sc7_needle, extra_needle],
enable: 1);
var slow_instruments = UpdateLoop.new(
update_period: 1,
components: [averager, temperature, lcd_controller],
enable: 1);