Added a scripts subdirectory with support for running external python

scripts that communicate with FlightGear via it's "telnet" interface.

FlightGear.dsp

@@ -35,13 +35,13 @@ RSC=rc.exe
 # PROP Output_Dir "Release"
 # PROP Intermediate_Dir "Release"
 # PROP Target_Dir ""
-# ADD CPP /nologo /W3 /GX /O2 /D "HAVE_CONFIG_H"  /I ".." /I ".\src" /I ".\src\include" /I "..\SimGear" /I "..\SimGear\simgear\metakit\include" /D "FGFS" /D "HAVE_CONFIG_H" /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FD /c
+# ADD CPP /nologo /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FD /c  /MTd /I ".." /I ".\src" /I ".\src\include" /I "..\SimGear" /I "..\SimGear\metakit-2.4.3\include" /I "..\SimGear\zlib-1.1.4" /D "HAVE_CONFIG_H" /D "FGFS" /D "FG_NEW_ENVIRONMENT" /D "ENABLE_AUDIO_SUPPORT" /D "ENABLE_PLIB_JOYSTICK"
 # SUBTRACT CPP /YX
 # ADD RSC /l 0xc09 /d "NDEBUG"
 BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
-# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib uuid.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386  /libpath:"..\plib" ssg.lib sg.lib pui.lib fnt.lib sl.lib ul.lib ssgaux.lib net.lib /libpath:"..\SimGear" SimGear.lib /libpath:"..\SimGear\simgear\metakit\builds" mk4vc60s_d.lib
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib uuid.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 
 
 !ELSEIF  "$(CFG)" == "FlightGear - Win32 Debug"
 
@@ -51,12 +51,12 @@ LINK32=link.exe
 # PROP Intermediate_Dir "Debug"
 # PROP Ignore_Export_Lib 0
 # PROP Target_Dir ""
-# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /D "_DEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /GZ /c /D "HAVE_CONFIG_H"  /I ".." /I ".\src" /I ".\src\include" /I "..\SimGear" /I "..\SimGear\simgear\metakit\include" /D "FGFS" /D "HAVE_CONFIG_H"
+# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /D "_DEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /GZ /c  /MTd /I ".." /I ".\src" /I ".\src\include" /I "..\SimGear" /I "..\SimGear\metakit-2.4.3\include" /I "..\SimGear\zlib-1.1.4" /D "HAVE_CONFIG_H" /D "FGFS" /D "FG_NEW_ENVIRONMENT" /D "ENABLE_AUDIO_SUPPORT" /D "ENABLE_PLIB_JOYSTICK"
 # ADD RSC /l 0xc09 /d "_DEBUG"
 BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
-# ADD LINK32 kernel32.lib user32.lib winspool.lib comdlg32.lib gdi32.lib shell32.lib glut32.lib wsock32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept  /libpath:"..\plib" ssg.lib sg.lib pui.lib fnt.lib sl.lib ul.lib ssgaux.lib net.lib /libpath:"..\SimGear" SimGear.lib /libpath:"..\SimGear\simgear\metakit\builds" mk4vc60s_d.lib"
+# ADD LINK32 kernel32.lib user32.lib winspool.lib comdlg32.lib gdi32.lib shell32.lib wsock32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept 
 
 !ENDIF 
 
@@ -1099,6 +1099,36 @@ SOURCE=.\src\Environment\environment_mgr.hxx
 
 !ENDIF 
 
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\Environment\environment_ctrl.cxx
+
+!IF  "$(CFG)" == "FlightGear - Win32 Release"
+
+# PROP Intermediate_Dir "Release\Lib_Environment"
+
+!ELSEIF  "$(CFG)" == "FlightGear - Win32 Debug"
+
+# PROP Intermediate_Dir "Debug\Lib_Environment"
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\Environment\environment_ctrl.hxx
+
+!IF  "$(CFG)" == "FlightGear - Win32 Release"
+
+# PROP Intermediate_Dir "Release\Lib_Environment"
+
+!ELSEIF  "$(CFG)" == "FlightGear - Win32 Debug"
+
+# PROP Intermediate_Dir "Debug\Lib_Environment"
+
+!ENDIF 
+
 # End Source File
 # End Group
 # Begin Group "Lib_Balloon"
@@ -5660,6 +5690,36 @@ SOURCE=.\src\FDM\MagicCarpet.hxx
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\FDM\UFO.cxx
+
+!IF  "$(CFG)" == "FlightGear - Win32 Release"
+
+# PROP Intermediate_Dir "Release\Lib_Flight"
+
+!ELSEIF  "$(CFG)" == "FlightGear - Win32 Debug"
+
+# PROP Intermediate_Dir "Debug\Lib_Flight"
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\FDM\UFO.hxx
+
+!IF  "$(CFG)" == "FlightGear - Win32 Release"
+
+# PROP Intermediate_Dir "Release\Lib_Flight"
+
+!ELSEIF  "$(CFG)" == "FlightGear - Win32 Debug"
+
+# PROP Intermediate_Dir "Debug\Lib_Flight"
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\FDM\NullFDM.cxx
 
 !IF  "$(CFG)" == "FlightGear - Win32 Release"
@@ -8283,7 +8343,6 @@ SOURCE=.\src\WeatherCM\sphrintp.h
 
 # End Source File
 # End Group
-
 # Begin Source File
 
 SOURCE = .\src\Include\config.h-msvc6

Makefile.am

@@ -1,7 +1,8 @@
 SUBDIRS = \
 	tests \
-	man \
+	src \
-	src
+        scripts \
+	man
 
 EXTRA_DIST = Thanks acsite.m4 acconfig.h irix-hack.sh \
 	FlightGear.dsp FlightGear.dsw

scripts/Makefile.am

@@ -0,0 +1 @@
+SUBDIRS = python

scripts/python/FlightGear.py

@@ -0,0 +1,157 @@
+from telnetlib import Telnet
+import sys
+import socket
+import re
+from string import split, join
+import time
+
+__all__ = ["FlightGear"]
+
+CRLF = '\r\n'
+
+class FGTelnet(Telnet):
+    def __init__(self,host,port):
+        Telnet.__init__(self,host,port)
+        self.prompt = []
+        self.prompt.append( re.compile('/[^>]*> ') )
+        self.timeout = 5
+        #Telnet.set_debuglevel(self,2)
+
+    def help(self):
+        return
+
+    def ls(self,dir=None):
+        """
+        Returns a list of properties.
+        """
+        if dir == None:
+            self._putcmd('ls')
+        else:
+            self._putcmd('ls %s' % dir )
+        return self._getresp()
+
+    def dump(self):
+        """Dump current state as XML."""
+        self._putcmd('dump')
+        return self._getresp()
+
+    def cd(self, dir):
+        """Change directory."""
+        self._putcmd('cd ' + dir)
+        self._getresp()
+        return
+
+    def pwd(self):
+        """Display current path."""
+        self._putcmd('pwd')
+        return self._getresp()
+
+    def get(self,var):
+        """Retrieve the value of a parameter."""
+        self._putcmd('get %s' % var )
+        return self._getresp()
+
+    def set(self,var,value):
+        """Set variable to a new value"""
+        self._putcmd('set %s %s' % (var,value))
+        self._getresp() # Discard response
+
+    def quit(self):
+        """Terminate connection"""
+        self._putcmd('quit')
+        self.close()
+        return
+
+    # Internal: send one command to FlightGear
+    def _putcmd(self,cmd):
+        cmd = cmd + CRLF;
+        Telnet.write(self, cmd)
+        return
+
+    # Internal: get a response from FlightGear
+    def _getresp(self):
+        (i,match,resp) = Telnet.expect(self, self.prompt, self.timeout)
+        # Remove the terminating prompt.
+        # Everything preceding it is the response.
+        return split(resp, '\n')[:-1]
+
+class FlightGear:
+    """FlightGear interface class.
+
+    An instance of this class represents a connection to a FlightGear telnet
+    server.
+
+    Properties are accessed using a dictionary style interface:
+    For example:
+
+    # Connect to flightgear telnet server.
+    fg = FlightGear('myhost', 5500)
+    # parking brake on
+    fg['/controls/parking-brake'] = 1
+    # Get current heading
+    heading = fg['/orientation/heading-deg']
+
+    Other non-property related methods
+    """
+
+    def __init__( self, host = 'localhost', port = 5500 ):
+        try:
+            self.telnet = FGTelnet(host,port)
+        except socket.error, msg:
+            self.telnet = None
+            raise socket.error, msg
+        
+    def __del__(self):
+        # Ensure telnet connection is closed cleanly.
+        self.quit();
+
+    def __getitem__(self,key):
+        """Get a FlightGear property value.
+        Where possible the value is converted to the equivalent Python type.
+        """
+        s = self.telnet.get(key)[0]
+        (name,x,value,type) = s.split()
+        if value == '':
+            return None
+        else:
+            value = value[1:-1] # strip quote characters
+            #print "name=%s,value=%s,type=%s" % (name,value,type)
+            if type == '(double)':
+                return float(value)
+            elif type == '(int)':
+                return int(value)
+            elif type == '(bool)':
+                if value == 'true':
+                    return 1
+                else:
+                    return 0
+            else:
+                return value
+        
+    def __setitem__(self, key, value):
+        """Set a FlightGear property value.
+        """
+        self.telnet.set( key, value )
+
+    def quit(self):
+        """Close the telnet connection to FlightGear.
+        """
+        if self.telnet:
+            self.telnet.quit()
+            self.telnet = None
+
+    def view_next(self):
+        """
+        """
+        self.telnet._putcmd('view next')
+        self.telnet._getresp()
+
+    def view_prev(self):
+        """
+        """
+        self.telnet._putcmd('view prev')
+        self.telnet._getresp()
+
+    def wait_for_prop_eq(self, prop, value, interval = 0.5):
+        while self.__getitem__(prop) != value:
+            time.sleep(interval)

scripts/python/Makefile.am

@@ -0,0 +1 @@
+EXTRA_DIST = FlightGear.py demo.py

scripts/python/demo.py

@@ -0,0 +1,42 @@
+from FlightGear import FlightGear
+import time
+
+def main():
+    fg = FlightGear('localhost', 5500)
+
+    # Wait five seconds for simulator to settle down
+    while fg['/sim/time/elapsed-ms'] < 5000:
+        time.sleep(1.0)
+
+    # parking brake on
+    fg['/controls/parking-brake'] = 1
+
+    heading = fg['/orientation/heading-deg']
+
+    # Switch to external view for for 'walk around'.
+    fg.view_next()
+
+    fg['/sim/current-view/goal-heading-offset-deg'] = 180.0
+    fg.wait_for_prop_eq('/sim/current-view/heading-offset-deg', 180.0)
+        
+    fg['/sim/current-view/goal-heading-offset-deg'] = 90.0
+    fg.wait_for_prop_eq('/sim/current-view/heading-offset-deg', 90.0)
+        
+    fg['/sim/current-view/goal-heading-offset-deg'] = 0.0
+    fg.wait_for_prop_eq('/sim/current-view/heading-offset-deg', 0.0)
+    
+    time.sleep(2.0)
+
+    # Switch back to cockpit view
+    fg.view_prev()
+
+    time.sleep(2.0)
+
+    # Flaps to take off position
+    fg['/controls/flaps'] = 0.34
+    fg.wait_for_prop_eq('/surface-positions/flap-pos-norm', 0.34)
+
+    fg.quit()
+    
+if __name__ == '__main__':
+    main()