1ba6af1284
- set z-index on layers - correct PLAN range - hide/show navaids on mode change - display runway identifier
117 lines
3.2 KiB
Text
117 lines
3.2 KiB
Text
# See: http://wiki.flightgear.org/MapStructure
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# Class things:
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var name = 'TFC';
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var parents = [DotSym];
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var __self__ = caller(0)[0];
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DotSym.makeinstance( name, __self__ );
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SymbolLayer.get(name).df_style = { # style to use by default
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line_width: 3,
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scale_factor: 1,
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color_by_lvl: {
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3: [1,0,0], # resolution advisory
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2: [1,0.5,0], # traffic advisory
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1: [1,1,1], # proximate traffic
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},
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color_default: [1,1,1]
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};
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var element_type = "group"; # we want a group, becomes "me.element"
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var text_tcas = nil;
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var icon_tcas = nil;
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var arrow_tcas = [nil,nil];
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var arrow_type = nil;
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var draw_tcas_arrow = nil;
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var color = nil;
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var threatLvl = 0e-0; # NaN to update even when threatLvl == nil
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# TODO: how to integrate both styling and caching?
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var draw = func {
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# TODO: get rid of draw_tcas_arrow hacks
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if (draw_tcas_arrow == nil)
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draw_tcas_arrow = [
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draw_tcas_arrow_above_500,
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draw_tcas_arrow_below_500
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];
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#var callsign = me.model.getNode("callsign").getValue();
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# print("Drawing traffic for:", callsign );
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var threatLvl = me.model.get_threat_lvl();
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var vspeed = me.model.get_vspd();
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var altDiff = me.layer.controller.get_alt_diff(me.model);
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# Init
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if (me.text_tcas == nil) {
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me.text_tcas = me.element.createChild("text")
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.setDrawMode( canvas.Text.TEXT )
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.setText(sprintf("%+02.0f",altDiff/100))
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.setFont("LiberationFonts/LiberationSans-Regular.ttf")
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.setColor(1,1,1)
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.setFontSize(20)
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.setAlignment("center-center");
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me.icon_tcas = me.element.createChild("path")
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.setStrokeLineWidth(3);
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}
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# Update
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if (altDiff > 0)
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me.text_tcas.setTranslation(0,-40);
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else
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me.text_tcas.setTranslation(0,40);
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var arrow_type = (vspeed >= 500);
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if (arrow_type != me.arrow_type) {
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(old_type, me.arrow_type) = (me.arrow_type, arrow_type);
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if (old_type != nil and me.arrow_tcas[old_type] != nil) me.arrow_tcas[old_type].hide();
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if (me.arrow_tcas[arrow_type] == nil)
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me.arrow_tcas[arrow_type] = me.draw_tcas_arrow[arrow_type](me.element);
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me.arrow_tcas[arrow_type].show();
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}
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if (threatLvl != me.threatLvl) {
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me.threatLvl = threatLvl;
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## TODO: should threat level symbols also be moved to *.draw files?
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if (threatLvl == 3) {
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# resolution advisory
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me.icon_tcas.moveTo(-17,-17)
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.horiz(34)
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.vert(34)
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.horiz(-34)
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.close();
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} elsif (threatLvl == 2) {
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# traffic advisory
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me.icon_tcas.moveTo(-17,0)
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.arcSmallCW(17,17,0,34,0)
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.arcSmallCW(17,17,0,-34,0);
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} elsif (threatLvl == 1) {
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# proximate traffic
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me.icon_tcas.moveTo(-10,0)
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.lineTo(0,-17)
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.lineTo(10,0)
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.lineTo(0,17)
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.close();
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} else {
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# other traffic
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me.icon_tcas.moveTo(-10,0)
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.lineTo(0,-17)
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.lineTo(10,0)
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.lineTo(0,17)
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.close();
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}
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}
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var color = nil;
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if (threatLvl != nil)
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if ((var c = me.style.color_by_lvl[threatLvl]) != nil)
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var color = canvas._getColor(c);
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if (color == nil)
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color = canvas._getColor(me.style.color_default);
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if (me.color != color) {
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me.color = color;
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me.icon_tcas.setColor(color);
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me.text_tcas.setColor(color);
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me.arrow_tcas[me.arrow_type].setColor(color);
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if (num(threatLvl) == nil or (threatLvl < 1 or threatLvl > 3)) {
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color = [0,0,0,0];
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}
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me.icon_tcas.setColorFill(color);
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}
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if (me.style.scale_factor != me.element.getScale())
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me.element.setScale(me.style.scale_factor);
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};
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