107 lines
2.8 KiB
Text
107 lines
2.8 KiB
Text
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# See: http://wiki.flightgear.org/MapStructure
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# Class things:
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var name = 'TERRAIN';
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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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var element_type = "group";
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var tile_list = ["tile_00.png","tile_04.png","tile_06.png"];
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var updateTerrain = func(size){
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if(me.fetching) return;
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var pos = geo.aircraft_position();
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var lat = pos.lat();
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var lon = pos.lon();
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me.fetching = 1;
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for (var a=0; a < me.tileradius; a+=1) {
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var len = size(me.terrlayer["L" ~ a]);
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for (var r=0; r < len; r+=1) {
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var imgx = math.mod(r*a,3);
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me.terrlayer["L" ~ a].setFile(me.imgpath ~ me.tile_list[imgx]).show();
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me.terrlayer["R" ~ a].setFile(me.imgpath ~ me.tile_list[2-imgx]).show();
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}
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}
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me.last_request = getprop("sim/time/elapsed-sec");
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me.fetching = 0;
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};
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var init = func {
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print('TERRAIN init');
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me.tile = 20;
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me.fetching = 0;
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me.timeStamp = nil;
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me.fetchRad = me.model.fetchRad; # Radius of radar layer to fetch
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me.range = me.model.rangeNm; # Range of Navigation Display
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me.viewport_radius = me.getOption('viewport_radius', 670);
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me.imgpath = get_local_path('res/');
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var tile = me.tile;
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var gx = int(me.viewport_radius / tile);
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me.tileradius = gx;
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me.terrlayer = {}; #me.element.createChild("image").set("z-index", -100).hide();
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var centx = me.viewport_radius;
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for (var c=0; c<gx; c+=1) {
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var hh = c * tile;
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var mx = (c == 0) ? gx : int(math.sqrt(gx*gx-c*c));
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var py = (gx-1) * tile;
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var pxr = centx+(c*tile);
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var pxl = centx-(c*tile)-tile;
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var grplx = [];
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var grprx = [];
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for (var r=0; r<mx; r+=1) {
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append(grplx , me.element.createChild("image").set("z-index", -100).setSize(tile,tile).setTranslation(pxl,py));
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append(grprx , me.element.createChild("image").set("z-index", -100).setSize(tile,tile).setTranslation(pxr,py));
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py-=tile;
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}
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me.terrlayer["L" ~ c] = grplx;
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me.terrlayer["R" ~ c] = grprx;
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}
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me.last_request = -600;
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me.update_interval = 600;
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#var r_scaled = (me.fetchRad*me.viewport_radius)/me.range;
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#me.fetchWXRMap(r_scaled);
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#me.timeStamp = nil;
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#http.load("https://api.rainviewer.com/public/maps.json").done(func(r) me.timeStamp = processRequest(r));
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};
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var draw = func {
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var range = me.layer.map.getRange(); # Range of Navigation Display
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var update_size = (range != me.range);
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me.range = range;
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me.fetchRad = me.model.fetchRad; # Radius of radar layer to fetch
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var r_scaled = (me.fetchRad*me.viewport_radius)/me.range;
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var hdg = me.layer.map.getHdg();
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var rot = 0 - hdg;
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if(rot < 0) rot = 360 + rot + -getprop("/environment/magnetic-variation-deg");
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me.element.setRotation(rot*D2R);
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if(update_size){
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#me.terrlayer.hide();
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#me.terrlayer.setSize(2*r_scaled, 2*r_scaled)
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# .setTranslation(-r_scaled, -r_scaled);
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#me.terrlayer.show();
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}
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if(getprop("sim/time/elapsed-sec") - me.last_request > me.update_interval) {
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me.updateTerrain(r_scaled);
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}
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};
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