The automatic runway selection code in startup.nas depends
on a valid metar before /sim/signals/nasal-dir-initialized
is fired. If the METAR arrives after that signal, no automatic
runway selection is performed. This patch waits for a METAR
on the first update() loop of the subsystem.
This is the initial commit for a reworked environment controller.
The main intention is to decouple the individual modules like
metar fetch, metar properties, environment interpolation etc.
to make it easier for other weather module developers to modify
environment settings.
As a side effect, the dialogs for weather-scenario, weather-conditions,
clouds and precipitations have been merged into a single dialog
- use max. computation time instead of max computations per frame
- restart computation of an area only after significant movememt
- let the area move with a heading and a speed
This is the first part of the local-weather implementation
of Thorsten Renk, currently written entirly in Nasal. Here
comes the terrain-sampling subsystem as a first step. It is
not (yet) included in the build process which will be
performed when the system has a little matured.
This fix (re)enables the setting of temperature and
dewpoint from the weather-conditions dialog and other
sources for various altitude layers. These temperatures
are reduced to the corresponding sea level temperatures
according to ICAO standard atmosphere which is the inverse
function of the calculation of temperature at altitude based
on sea-level-temperature.
Note: this only works for the troposphere.
- METAR changes caused strong aircraft movements if the station temperature or field elevation changed. Temperature and dewpoint are now also slowly interpolated to reach the new value.
- Probably unnoticed bug: calculation of the interpolation speed was wrong.
- some minor code-cleanup
Patrice Poly:
After investigation, it appears that the probes are reversed due to a
little mistake when someone changed how the probe calculations are made.
probe 0 is under the plane. probe 4 should be downwind, probes 1,2 and 3 should be upwind.
Improvements to the cloudsystem:
- A new xml format
- Texture indexing based on the position of the sprite in the cloud
mass, allowing more control over the texture set.
- Improved fog and shading
- Better sprite distribution
- A more natural distribution of clouds, so no more obvious grids.
