75 lines
1.8 KiB
Text
75 lines
1.8 KiB
Text
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# Class things:
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var parents = [Map.Controller];
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var __self__ = caller(0)[0];
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Map.Controller.add("Static position", __self__);
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#Map.df_controller = __self__;
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##
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# A controller to handle static updates of position, for example an airport
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# diagram or non-moving map.
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#
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# Note that in contrast to the Aircraft Controllers, update_pos() or
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# update_layers() must be called explicitly to trigger an update of the map.
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##
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var new = func(map, source='main') {
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var m = {
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parents: [__self__],
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map: map,
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_pos: nil, _time: nil, _range: nil,
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_alt: 0, _hdg: 0,
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};
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m._pos = geo.Coord.new();
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m._pos.set_latlon(0.0,0.0);
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m.update_pos();
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return m;
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};
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var del = func(map) {
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if (map != me.map) die();
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};
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var setHeading = func(hdg) { me._hdg = hdg; };
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var setAltitude = func(alt) { me._alt = alt; };
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var getHeading = func() { return me._hdg; };
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var getAltitude = func() { return me._alt; };
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var setPosition = func(lat, lon) {
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me._pos.set_latlon(lat, lon);
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me.update_pos();
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};
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var applyOffset = func(x, y) {
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# Apply an offset in screen coordinates, e.g. from a mouse event
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var crs = 0.0;
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if (x != 0.0) {
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# Calculate course in degrees
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crs = 90.0 + 180.0 / math.pi * math.atan(y/x);
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if (x < 0.0 ) crs = crs + 180.0;
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} else {
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if (y < 0.0) crs = 0.0;
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if (y > 0.0) crs = 180.0
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}
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# Screen resolution m/pixel is range/screen_range
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var screen_range = me.map.getScreenRange() or 200;
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var screen_resolution = me.map.getRange() * globals.NM2M / screen_range;
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me._pos.apply_course_distance(crs, math.sqrt(x*x + y*y) * screen_resolution);
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me.update_pos();
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};
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# Controller methods
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var update_pos = func {
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me.map.setPos(lat: me._pos.lat(), lon: me._pos.lon(),
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hdg: me._hdg,,
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alt: me._alt,);
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me.map.update();
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};
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var update_layers = func {
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me.map.update();
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};
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var get_position = func {
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return [ me._pos.lat(), me._pos.lon() ];
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}
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