feat(nws): add better NWS hacks (#8606)

* feat(nws): enable turning of NWS when standing still

* feat(nws): limit max NWS angle to remove jitter when using rudder

* feat(nws): also add new hack to A380 NWS

fbw-a32nx/src/base/flybywire-aircraft-a320-neo/SimObjects/AirPlanes/FlyByWire_A320_NEO/flight_model.cfg

@@ -46,6 +46,7 @@ tailwheel_lock = 0 ; Is tailwheel lock available TRUE/FALSE
 max_number_of_points = 9 ; Number of contact points
 gear_locked_on_ground = 0 ; Defines whether or not the landing gear handle is locked to down when the plane is on the ground.
 gear_locked_above_speed = -1 ; Defines the speed at which the landing gear handle becomes locked in the up position. (-1 = Disabled)==> Disabled is kept in favor of an XML-based solution
+allow_stopped_steering = 1 ; This can be used to enable (TRUE, 1) steering when the aircraft is stopped or not (FALSE, 0).
 max_speed_full_steering = 300 ; Defines the speed under which the full angle of steering is available (in feet/second).==> 20 kts or 33.7 ft/sec (was 8)
 max_speed_decreasing_steering = 350 ; Defines the speed above which the angle of steering stops decreasing (in feet/second). ==> 40 kts or 67.5 ft/sec (was 50)
 min_available_steering_angle_pct = 0.0 ; Defines the percentage of steering which will always be available even above max_speed_decreasing_steering (in percent over 100) ===> 6 degrees or 0.08% of 75 degrees max deflection (was 0.2 or 15 degrees)

fbw-a32nx/src/wasm/systems/a320_systems_wasm/src/nose_wheel_steering.rs

@@ -132,16 +132,30 @@ pub(super) fn nose_wheel_steering(builder: &mut MsfsAspectBuilder) -> Result<(),
 
             steering_demand_to_msfs_from_steering_angle(nose_wheel_position, rudder_position)
         },
-        Variable::aspect("STEERING_ANGLE"),
+        Variable::aspect("STEERING_ANGLE_COMMAND"),
+    );
+
+    builder.map(
+        ExecuteOn::PostTick,
+        Variable::aspect("NOSE_WHEEL_POSITION_RATIO"),
+        steering_max_demand_to_msfs_from_steering_angle,
+        Variable::aspect("STEERING_ANGLE_MAX_COMMAND"),
     );
 
     builder.variable_to_event(
-        Variable::aspect("STEERING_ANGLE"),
+        Variable::aspect("STEERING_ANGLE_COMMAND"),
         VariableToEventMapping::EventData32kPosition,
         VariableToEventWriteOn::EveryTick,
         "STEERING_SET",
     )?;
 
+    builder.variable_to_event(
+        Variable::aspect("STEERING_ANGLE_MAX_COMMAND"),
+        VariableToEventMapping::EventData32kPosition,
+        VariableToEventWriteOn::EveryTick,
+        "NOSE_WHEEL_STEERING_LIMIT_SET",
+    )?;
+
     Ok(())
 }
 
@@ -181,3 +195,13 @@ fn steering_demand_to_msfs_from_steering_angle(
     // This way we end up with actual angle we required
     (1. - steering_ratio_converted) + (rudder_position - 0.5)
 }
+
+fn steering_max_demand_to_msfs_from_steering_angle(nose_wheel_position: f64) -> f64 {
+    const MAX_MSFS_STEERING_ANGLE_DEGREES: f64 = 180.;
+
+    // Steering in msfs is the max we want rescaled to the max in msfs
+    nose_wheel_position.abs() * MAX_CONTROLLABLE_STEERING_ANGLE_DEGREES
+        / MAX_MSFS_STEERING_ANGLE_DEGREES
+        / 2.
+        + 0.5
+}

fbw-a380x/src/base/flybywire-aircraft-a380-842/SimObjects/AirPlanes/FlyByWire_A380_842/flight_model.cfg

@@ -74,6 +74,7 @@ tailwheel_lock = 0 ; Is tailwheel lock available TRUE/FALSE
 max_number_of_points = 11 ; Number of contact points
 gear_locked_on_ground = 0 ; Defines whether or not the landing gear handle is locked to down when the plane is on the ground.
 gear_locked_above_speed = -1 ; Defines the speed at which the landing gear handle becomes locked in the up position. (-1 = Disabled)==> Disabled is kept in favor of an XML-based solution
+allow_stopped_steering = 1 ; This can be used to enable (TRUE, 1) steering when the aircraft is stopped or not (FALSE, 0).
 max_speed_full_steering = 300 ; Defines the speed under which the full angle of steering is available (in feet/second).==> 20 kts or 33.7 ft/sec (was 8)
 max_speed_decreasing_steering = 350 ; Defines the speed above which the angle of steering stops decreasing (in feet/second). ==> 40 kts or 67.5 ft/sec (was 50)
 min_available_steering_angle_pct = 0.0 ; Defines the percentage of steering which will always be available even above max_speed_decreasing_steering (in percent over 100) ===> 6 degrees or 0.08% of 75 degrees max deflection (was 0.2 or 15 degrees)

fbw-a380x/src/wasm/systems/a380_systems_wasm/src/nose_wheel_steering.rs

@@ -132,16 +132,30 @@ pub(super) fn nose_wheel_steering(builder: &mut MsfsAspectBuilder) -> Result<(),
 
             steering_demand_to_msfs_from_steering_angle(nose_wheel_position, rudder_position)
         },
-        Variable::aspect("STEERING_ANGLE"),
+        Variable::aspect("STEERING_ANGLE_COMMAND"),
+    );
+
+    builder.map(
+        ExecuteOn::PostTick,
+        Variable::aspect("NOSE_WHEEL_POSITION_RATIO"),
+        steering_max_demand_to_msfs_from_steering_angle,
+        Variable::aspect("STEERING_ANGLE_MAX_COMMAND"),
     );
 
     builder.variable_to_event(
-        Variable::aspect("STEERING_ANGLE"),
+        Variable::aspect("STEERING_ANGLE_COMMAND"),
         VariableToEventMapping::EventData32kPosition,
         VariableToEventWriteOn::EveryTick,
         "STEERING_SET",
     )?;
 
+    builder.variable_to_event(
+        Variable::aspect("STEERING_ANGLE_MAX_COMMAND"),
+        VariableToEventMapping::EventData32kPosition,
+        VariableToEventWriteOn::EveryTick,
+        "NOSE_WHEEL_STEERING_LIMIT_SET",
+    )?;
+
     // Adds rotational speed to nose wheel based on steering angle
     const STEERING_RATIO_TO_WHEEL_ANGLE_GAIN: f64 = 80.;
     builder.map_many(
@@ -207,6 +221,16 @@ fn steering_demand_to_msfs_from_steering_angle(
     (1. - steering_ratio_converted) + (rudder_position - 0.5)
 }
 
+fn steering_max_demand_to_msfs_from_steering_angle(nose_wheel_position: f64) -> f64 {
+    const MAX_MSFS_STEERING_ANGLE_DEGREES: f64 = 180.;
+
+    // Steering in msfs is the max we want rescaled to the max in msfs
+    nose_wheel_position.abs() * MAX_CONTROLLABLE_STEERING_ANGLE_DEGREES
+        / MAX_MSFS_STEERING_ANGLE_DEGREES
+        / 2.
+        + 0.5
+}
+
 fn normalise_angle(angle: f64) -> f64 {
     let raw = angle % 360.;