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var mapsRelativePath = '';
var mapsAbsolutePath = '';
var textureExtension = '.png';
var actual_map = '';
var mapRanges = [0.01, 0.05, 0.1, 0.25, 0.5, 1.0, 2.0];
var init_map = func {
var maps = '/zkv1000/maps';
var root_l = common_l = common_c = 0;
var home = string.normpath(getprop('/sim/fg-home'));
var home_s = size(home);
var root = string.normpath(getprop('/sim/fg-root'));
var root_s = size(root);
for (var i = 0; i < root_s; i += 1)
if (root[i] == `/`)
root_l += 1;
for (var i = 0; i < root_s and i < home_s; i += 1) {
(home[i] == root[i]) or break;
common_c += 1;
if (home[i] == `/`) common_l += 1;
}
mapsRelativePath = '../../../../';
for (var i = 0; i < root_l - common_l; i += 1)
mapsRelativePath ~= '../';
mapsRelativePath ~= substr(home, common_c, home_s) ~ maps;
mapsAbsolutePath = home ~ maps;
}
var moveMap = func (d) {
atlas_map(d);
terrain_map(d);
}
var atlas_map = func (d) {
if (device[d].status != 2 and device[d].status != 3) return;
var mapnode = '/instrumentation/zkv1000/device[' ~ d ~ ']/map/';
var lat = getprop(mapnode ~ 'latitude-deg');
var lon = getprop(mapnode ~ 'longitude-deg');
var map = sprintf('%s%03i%s%02i',
(lon > 0)? 'e' : 'w',
(lon > 0)? lon : (abs(lon) + 1),
(lat > 0)? 'n' : 's',
(lat > 0)? lat : (abs(lat) + 1)
);
if (actual_map == map) {
setprop(mapnode ~ 'moving-x', (lon > 0)? frac(lon) : 1 - abs(frac(lon)));
setprop(mapnode ~ 'moving-y', (lat > 0)? frac(lat) : 1 - abs(frac(lat)));
}
elsif (io.stat(mapsAbsolutePath ~ '/terrain/' ~ map ~ textureExtension) != nil) {
actual_map = map;
setprop(mapnode ~ 'terrain-path', mapsRelativePath ~ '/terrain/' ~ map ~ textureExtension);
setprop(mapnode ~ 'moving-x', (lon > 0)? frac(lon) : 1 - abs(frac(lon)));
setprop(mapnode ~ 'moving-y', (lat > 0)? frac(lat) : 1 - abs(frac(lat)));
}
else {
actual_map = '';
setprop(mapnode ~ 'terrain-path', '');
setprop(mapnode ~ 'moving-x', 0);
setprop(mapnode ~ 'moving-y', 0);
}
setprop(mapnode ~ 'alt', computeCursorPosition(alt));
setprop(mapnode ~ 'alt-selected', computeCursorPosition(getprop('/instrumentation/zkv1000/afcs/selected-alt-ft')));
setprop(mapnode ~ 'alt-1-min', computeCursorPosition(alt + vs));
setprop(mapnode ~ 'longitude-string', device[d].status == 3 ?
sprintf('%04.2f LON', lon) : DMS(lon, lon > 0 ? 'E' : 'W'));
setprop(mapnode ~ 'latitude-string', device[d].status == 3 ?
sprintf('%04.2f LAT', lat) : DMS(lat, lat > 0 ? 'N' : 'S'));
}
var terrain_map_pos = nil;
var terrain_map_row = 16;
var terrain_map_hdg = 0;
var terrain_map_alt = 0;
var terrain_map = func (d) {
if (device[d].status != 4) return;
var path = '/instrumentation/zkv1000/device[' ~ d ~ ']/map/terrain-elevation/';
var offset = 0;
if (terrain_map_row < 15)
terrain_map_row += 1;
else {
terrain_map_pos = geo.aircraft_position();
terrain_map_hdg = hdg;
terrain_map_alt = alt;
terrain_map_row = 0;
}
terrain_map_pos.apply_course_distance(terrain_map_hdg - 90, range / 2 * 1852);
for (var col = 0; col < 16; col += 1) {
var info = geodinfo(terrain_map_pos.lat(), terrain_map_pos.lon());
if (info != nil) {
var d = terrain_map_alt - info[0] * 3.28;
if (d > 1000) {
offset = 0
}
elsif (d > -100) {
offset = 0.25
}
else {
offset = 1.5
}
}
else {
offset = 0.75
}
setprop(path ~ terrain_map_row ~ '-' ~ col, offset);
terrain_map_pos.apply_course_distance(terrain_map_hdg + 90, range / 16 * 1852);
}
terrain_map_pos.apply_course_distance(terrain_map_hdg, range / 16 * 1852);
}
var computeCursorPosition = func (v) {
var ref = round_bis(v, (v < 3281)? 820 : 1640);
if (ref < 4921) ref /= 820;
elsif (ref > 21325) ref = 15;
else {
ref /= 1640;
ref += 2;
}
return ref;
}