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- first stab at making dynamic view parameters configurable on a per-aircraft

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basis; see bo105.nas for an example; expect some changes, though
- move "lookat" feature here from bo105.nas (used by "flaps up" bindings)
This commit is contained in:
mfranz 2006-12-09 22:42:13 +00:00
parent 354a0f59ff
commit 0529f66842
1 changed files with 90 additions and 77 deletions
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167
Nasal/dynamic_view.nas
View file

@ -84,7 +84,7 @@ ViewAxis = {
# sim/current-view/goal-*-offset-deg properties. # sim/current-view/goal-*-offset-deg properties.
# #
ViewManager = { ViewManager = {
new : func(c) { new : func {
var m = { parents : [ViewManager] }; var m = { parents : [ViewManager] };
m.elapsedN = props.globals.getNode("/sim/time/elapsed-sec", 1); m.elapsedN = props.globals.getNode("/sim/time/elapsed-sec", 1);
m.deltaN = props.globals.getNode("/sim/time/delta-realtime-sec", 1); m.deltaN = props.globals.getNode("/sim/time/delta-realtime-sec", 1);
@ -102,27 +102,33 @@ ViewManager = {
m.pitch_axis = ViewAxis.new("/sim/current-view/goal-pitch-offset-deg"); m.pitch_axis = ViewAxis.new("/sim/current-view/goal-pitch-offset-deg");
m.roll_axis = ViewAxis.new("/sim/current-view/goal-roll-offset-deg"); m.roll_axis = ViewAxis.new("/sim/current-view/goal-roll-offset-deg");
# accerations are converted to G (one G is subtraced from z-accel) # accelerations are converted to G (one G is subtraced from z-accel)
m.ax = Input.new("/accelerations/pilot/x-accel-fps_sec", 0.03108095, 0, 0.58, 0); m.axI = Input.new("/accelerations/pilot/x-accel-fps_sec", 0.03108095, 0, 0.58, 0);
m.ay = Input.new("/accelerations/pilot/y-accel-fps_sec", 0.03108095, 0, 0.95); m.ayI = Input.new("/accelerations/pilot/y-accel-fps_sec", 0.03108095, 0, 0.95);
m.az = Input.new("/accelerations/pilot/z-accel-fps_sec", -0.03108095, -1, 0.46); m.azI = Input.new("/accelerations/pilot/z-accel-fps_sec", -0.03108095, -1, 0.46);
# velocities are converted to knots # velocities are converted to knots
m.vx = Input.new("/velocities/uBody-fps", 0.5924838, 0, 0.45); m.vxI = Input.new("/velocities/uBody-fps", 0.5924838, 0, 0.45);
m.vy = Input.new("/velocities/vBody-fps", 0.5924838, 0); m.vyI = Input.new("/velocities/vBody-fps", 0.5924838, 0);
m.vz = Input.new("/velocities/wBody-fps", 0.5924838, 0); m.vzI = Input.new("/velocities/wBody-fps", 0.5924838, 0);
# turn WoW bool into smooth values ranging from 0 to 1 # turn WoW bool into smooth values ranging from 0 to 1
m.wow = Input.new("/gear/gear/wow", 1, 0, 0.74); m.wowI = Input.new("/gear/gear/wow", 1, 0, 0.74);
m.hdg_change = aircraft.lowpass.new(0.95); m.hdg_change = aircraft.lowpass.new(0.95);
m.ubody = aircraft.lowpass.new(0.95); m.ubody = aircraft.lowpass.new(0.95);
m.last_heading = m.headingN.getValue(); m.last_heading = m.headingN.getValue();
m.size_factor = -getprop("/sim/chase-distance-m") / 25; m.size_factor = -getprop("/sim/chase-distance-m") / 25;
m.is_helicopter = props.globals.getNode("rotors", 0) != nil;
if (props.globals.getNode("rotors", 0) != nil) {
m.default_helicopter();
} else {
m.default_plane();
}
m.reset(); m.reset();
return m; return m;
}, },
reset : func { reset : func {
me.lookat_active = 0;
me.heading_axis.reset(); me.heading_axis.reset();
me.pitch_axis.reset(); me.pitch_axis.reset();
me.roll_axis.reset(); me.roll_axis.reset();
@ -134,55 +140,88 @@ ViewManager = {
me.roll_axis.add_offset(); me.roll_axis.add_offset();
}, },
apply : func { apply : func {
var pitch = me.pitchN.getValue(); if (me.lookat_active) {
var roll = me.rollN.getValue(); me.heading_axis.prop.setValue(me.lookat_heading);
var wow = me.wow.get(); me.pitch_axis.prop.setValue(me.lookat_pitch);
var az = me.az.get(); return;
var vx = me.vx.get(); }
# calculate sideslip factor (zeroed when no forward ground speed) me.pitch = me.pitchN.getValue();
var wspd = me.wind_speedN.getValue(); me.roll = me.rollN.getValue();
var wdir = me.headingN.getValue() - me.wind_dirN.getValue(); me.wow = me.wowI.get();
var u = vx - wspd * cos(wdir);
var slip = sin(me.slipN.getValue()) * me.ubody.filter(normatan(u / 10));
me.calc != nil and me.calc();
me.calc_heading != nil and me.heading_axis.apply(me.calc_heading());
me.calc_pitch != nil and me.pitch_axis.apply(me.calc_pitch());
me.calc_roll != nil and me.roll_axis.apply(me.calc_roll());
},
lookat : func(h = nil, p = nil) {
if (h == nil) {
view.resetView();
me.lookat_active = 0;
return;
}
me.lookat_heading = h;
me.lookat_pitch = p;
me.lookat_active = 1;
},
};
ViewManager.default_plane = func {
me.calc = func {
# calculate steering factor # calculate steering factor
var hdg = me.headingN.getValue(); var hdg = me.headingN.getValue();
var hdiff = normdeg(me.last_heading - hdg); var hdiff = normdeg(me.last_heading - hdg);
me.last_heading = hdg; me.last_heading = hdg;
var steering = normatan(me.hdg_change.filter(hdiff)) * me.size_factor; me.steering = normatan(me.hdg_change.filter(hdiff)) * me.size_factor;
if (me.is_helicopter) { me.az = me.azI.get();
var speed = 1 - normatan(me.speedN.getValue() / 20); me.vx = me.vxI.get();
me.heading_axis.apply( # view heading due to ... # calculate sideslip factor (zeroed when no forward ground speed)
(roll < 0 ? -50 : -25) * npow(sin(roll) * cos(pitch), 2) # roll var wspd = me.wind_speedN.getValue();
); var wdir = me.headingN.getValue() - me.wind_dirN.getValue();
me.pitch_axis.apply( # view pitch due to ... var u = me.vx - wspd * cos(wdir);
(pitch < 0 ? -35 : -40) * sin(pitch) * speed # pitch me.slip = sin(me.slipN.getValue()) * me.ubody.filter(normatan(u / 10));
+ 15 * sin(roll) * sin(roll) # roll }
);
me.roll_axis.apply( # view roll due to ...
-15 * sin(roll) * cos(pitch) * speed # roll
);
} else { me.calc_heading = func { # heading
me.heading_axis.apply( # heading ... -15 * sin(me.roll) * cos(me.pitch) # due to roll
-15 * sin(roll) * cos(pitch) # due to roll + 40 * me.steering * me.wow # due to ground steering
+ 40 * steering * wow # due to ground steering + 10 * me.slip * (1 - me.wow) # due to sideslip (in air)
+ 10 * slip * (1 - wow) # due to sideslip (in air) }
);
me.pitch_axis.apply( # pitch ... me.calc_pitch = func { # pitch
10 * sin(roll) * sin(roll) # due to roll 10 * sin(me.roll) * sin(me.roll) # due to roll
+ 30 * (1 / (1 + math.exp(2 - az)) # due to G load + 30 * (1 / (1 + math.exp(2 - me.az)) # due to G load
- 0.119202922) # [move to origin; 1/(1+exp(2)) ] - 0.119202922) # [move to origin; 1/(1+exp(2)) ]
); }
me.roll_axis.apply( # roll ...
0.0 * sin(roll) * cos(pitch) # due to roll (none) me.calc_roll = nil;
); }
}
},
};
ViewManager.default_helicopter = func {
me.calc = func {
me.lowspeed = 1 - normatan(me.speedN.getValue() / 20);
}
me.calc_heading = func { # view heading due to
-50 * npow(sin(me.roll) * cos(me.pitch), 2) # roll
}
me.calc_pitch = func { # view pitch due to
(me.pitch < 0 ? -35 : -40) * sin(me.pitch) * me.lowspeed # pitch
+ 15 * sin(me.roll) * sin(me.roll) # roll
}
me.calc_roll = func { # view roll due to
-15 * sin(me.roll) * cos(me.pitch) * me.lowspeed # roll
}
}
@ -201,17 +240,6 @@ main_loop = func(id) {
# Register new, aircraft specific manager. (Needs to offer the
# same methods, of course.)
#
register = func(mgr) {
view_manager = mgr;
var p = "/sim/view/dynamic/enabled";
setprop(p, getprop(p)); # fire listener
}
var original_resetView = nil; var original_resetView = nil;
var panel_visibilityN = nil; var panel_visibilityN = nil;
var dynamic_view = nil; var dynamic_view = nil;
@ -265,22 +293,7 @@ setlistener("/sim/signals/fdm-initialized", func {
mouse_button = cmdarg().getBoolValue(); mouse_button = cmdarg().getBoolValue();
}, 1)); }, 1));
var config = props.Node.new({ view_manager = ViewManager.new();
"heading-due-to" : {
"roll" : -15,
"ground-steering" : 40,
"side-slip" : 0.4,
},
"pitch-due-to" : {
"roll" : 10,
"g-load" : 30,
},
"roll-due-to" : {
"roll" : 0,
},
});
props.copy(props.globals.getNode("/sim/view/dynamic", 1), config);
view_manager = ViewManager.new(config);
original_resetView = view.resetView; original_resetView = view.resetView;
view.resetView = func { view.resetView = func {