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- first stab at fly-by view mode

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- hack for the panView functions: work in paused mode, too!
This commit is contained in:
mfranz 2007-05-04 18:01:26 +00:00
parent 3d9ddaac58
commit 66f9e552ba
1 changed files with 77 additions and 6 deletions
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83
Nasal/view.nas
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@ -111,23 +111,88 @@ VIEW_PAN_RATE = 60;
# Pans the view horizontally. The argument specifies a relative rate
# (or number of "steps" -- same thing) to the standard rate.
#
panViewDir = func {
controls.slewProp("/sim/current-view/goal-heading-offset-deg",
arg[0] * VIEW_PAN_RATE);
panViewDir = func(step) {
if (getprop("/sim/freeze/master"))
prop = "/sim/current-view/heading-offset-deg";
else
prop = "/sim/current-view/goal-heading-offset-deg";
controls.slewProp(prop, step * VIEW_PAN_RATE);
}
##
# Pans the view vertically. The argument specifies a relative rate
# (or number of "steps" -- same thing) to the standard rate.
#
panViewPitch = func {
controls.slewProp("/sim/current-view/goal-pitch-offset-deg",
arg[0] * VIEW_PAN_RATE);
panViewPitch = func(step) {
if (getprop("/sim/freeze/master"))
prop = "/sim/current-view/pitch-offset-deg";
else
prop = "/sim/current-view/goal-pitch-offset-deg";
controls.slewProp(prop, step * VIEW_PAN_RATE);
}
var flyby = {
init : func {
me.lonN = props.globals.getNode("/sim/viewer/longitude-deg", 1);
me.latN = props.globals.getNode("/sim/viewer/latitude-deg", 1);
me.altN = props.globals.getNode("/sim/viewer/altitude-ft", 1);
me.loopid = 0;
me.number = nil;
forindex (var i; views)
if (views[i].getNode("name").getValue() == "Fly-By View")
me.number = i;
if (me.number == nil)
die("can't find 'Fly-By View'");
setlistener("/sim/freeze/replay-state", func { me.reset() });
setlistener("/sim/signals/reinit", func { cmdarg().getValue() or me.reset() });
setlistener("/sim/current-view/view-number", func {
me.loopid += 1;
if (cmdarg().getValue() == me.number) {
me.reset();
me.loop(me.loopid);
}
}, 1);
},
reset: func {
me.chase = -getprop("/sim/chase-distance-m") / 2;
me.course = getprop("/orientation/heading-deg");
me.coord = geo.Coord.new().set(geo.aircraft_position());
me.dist = 20;
me.setpos();
},
setpos : func {
var pos = geo.aircraft_position();
var course = me.coord.course_to(pos);
var dist = me.coord.distance_to(pos);
pos.apply_course_distance(course, 30 + dist * 0.5);
pos.apply_course_distance(course + 90, me.chase * 0.75);
var lon = pos.lon();
var lat = pos.lat();
var elev = geo.elevation(lon, lat);
var alt = pos.alt();
alt += (alt - me.coord.alt()) * 0.5;
if (elev != nil and alt < elev + 10)
alt = elev + 10;
me.lonN.setValue(lon);
me.latN.setValue(lat);
me.altN.setValue(alt * geo.M2FT);
me.coord.set_lonlat(lon, lat, alt);
},
loop : func(id) {
id == me.loopid or return;
me.setpos();
settimer(func { me.loop(id) }, 6);
}
};
#-- view manager --------------------------------------------------------------
#
@ -276,3 +341,9 @@ _setlistener("/sim/signals/nasal-dir-initialized", func {
views = props.globals.getNode("/sim").getChildren("view");
});
_setlistener("/sim/signals/fdm-initialized", func {
flyby.init();
});