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flightgear/src/Scripting/NasalCondition.cxx

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C++

// NasalCondition -- expose SGCondition to Nasal
//
// Written by James Turner, started 2012.
//
// Copyright (C) 2012 James Turner
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "NasalCondition.hxx"
#include "NasalSys.hxx"
#include <Main/globals.hxx>
#include <simgear/nasal/cppbind/Ghost.hxx>
#include <simgear/nasal/cppbind/NasalHash.hxx>
#include <simgear/props/condition.hxx>
typedef nasal::Ghost<SGConditionRef> NasalCondition;
//------------------------------------------------------------------------------
static naRef f_createCondition(naContext c, naRef me, int argc, naRef* args)
{
SGPropertyNode* node = argc > 0
? ghostToPropNode(args[0])
: NULL;
SGPropertyNode* root = argc > 1
? ghostToPropNode(args[1])
: globals->get_props();
if( !node || !root )
naRuntimeError(c, "createCondition: invalid argument(s)");
try
{
return nasal::to_nasal(c, sgReadCondition(root, node));
}
catch(std::exception& ex)
{
naRuntimeError(c, "createCondition: %s", ex.what());
}
return naNil();
}
//------------------------------------------------------------------------------
naRef initNasalCondition(naRef globals, naContext c)
{
nasal::Ghost<SGConditionRef>::init("Condition")
.method("test", &SGCondition::test);
nasal::Hash(globals, c).set("_createCondition", f_createCondition);
return naNil();
}