Fix scons: *** No SConstruct file found

Add --directory=$(ProjectDir) to build_commandline()

methods.py

@@ -1706,9 +1706,9 @@ def generate_vs_project(env, num_jobs):
         env.AddToVSProject(env.servers_sources)
         env.AddToVSProject(env.editor_sources)
 
-        env['MSVSBUILDCOM'] = build_commandline('scons platform=windows target=$(Configuration) tools=!tools! -j' + str(num_jobs))
-        env['MSVSREBUILDCOM'] = build_commandline('scons platform=windows target=$(Configuration) tools=!tools! vsproj=yes -j' + str(num_jobs))
-        env['MSVSCLEANCOM'] = build_commandline('scons --clean platform=windows target=$(Configuration) tools=!tools! -j' + str(num_jobs))
+        env['MSVSBUILDCOM'] = build_commandline('scons --directory=$(ProjectDir) platform=windows target=$(Configuration) tools=!tools! -j' + str(num_jobs))
+        env['MSVSREBUILDCOM'] = build_commandline('scons --directory=$(ProjectDir) platform=windows target=$(Configuration) tools=!tools! vsproj=yes -j' + str(num_jobs))
+        env['MSVSCLEANCOM'] = build_commandline('scons --directory=$(ProjectDir) --clean platform=windows target=$(Configuration) tools=!tools! -j' + str(num_jobs))
 
         # This version information (Win32, x64, Debug, Release, Release_Debug seems to be
         # required for Visual Studio to understand that it needs to generate an NMAKE