//=================================================================================
/*static*/ bool Node::ReadBoolean( lua_State* L, Context& context, const std::string& name, bool& value, bool defaultValue )
{
value = defaultValue;
lua_getfield( L, -1, name.c_str() );
if( !lua_isnil( L, -1 ) && lua_isboolean( L, -1 ) )
value = lua_toboolean( L, -1 ) ? true : false;
else if( context.GetNodeReadingDisposition() == Context::NONEXISTENCE_OF_FIELD_IS_FATAL_ERROR )
{
lua_pop( L, 1 );
return context.IssueError( "Failed to read boolean from field \"%s\".", name.c_str() );
}
lua_pop( L, 1 );
return true;
}
//=================================================================================
/*static*/ bool Node::ReadRotorE3GA( lua_State* L, Context& context, const std::string& name, c3ga::rotorE3GA& rotor, const c3ga::rotorE3GA* defaultValue /*= 0*/ )
{
bool success = false;
int top = lua_gettop( L );
try
{
if( defaultValue )
rotor = *defaultValue;
else
rotor.set( c3ga::rotorE3GA::coord_scalar_e1e2_e2e3_e3e1, 1.0, 0.0, 0.0, 0.0 );
lua_getfield( L, -1, name.c_str() );
if( lua_isnil( L, -1 ) || !lua_istable( L, -1 ) )
{
if( context.GetNodeReadingDisposition() == Context::NONEXISTENCE_OF_FIELD_IS_FATAL_ERROR )
throw Error( "ReadRotorE3GA failed to read \"%s\" as a table.", name.c_str() );
}
else
{
if( !ReadNumber( L, context, "scalar", rotor.m_scalar, 1.0 ) )
throw new Error( "ReadRotorE3GA failed to read \"scalar\" from \"%s\".", name.c_str() );
if( !ReadNumber( L, context, "xy", rotor.m_e1_e2, 0.0 ) )
throw new Error( "ReadRotorE3GA failed to read \"xy\" from \"%s\".", name.c_str() );
if( !ReadNumber( L, context, "yz", rotor.m_e2_e3, 0.0 ) )
throw new Error( "ReadRotorE3GA failed to read \"yz\" from \"%s\".", name.c_str() );
if( !ReadNumber( L, context, "zx", rotor.m_e3_e1, 0.0 ) )
throw new Error( "ReadRotorE3GA failed to read \"zx\" from \"%s\".", name.c_str() );
}
lua_pop( L, 1 );
success = true;
}
catch( Error* error )
{
context.IssueError( error );
}
lua_settop( L, top );
return success;
}
//=================================================================================
/*static*/ bool Node::ReadVectorE2GA( lua_State* L, Context& context, const std::string& name, c3ga::vectorE2GA& vector, const c3ga::vectorE2GA* defaultValue /*= 0*/ )
{
bool success = false;
int top = lua_gettop( L );
try
{
if( defaultValue )
vector = *defaultValue;
else
{
vector.set_e1( 0.0 );
vector.set_e2( 0.0 );
}
lua_getfield( L, -1, name.c_str() );
if( lua_isnil( L, -1 ) || !lua_istable( L, -1 ) )
{
if( context.GetNodeReadingDisposition() == Context::NONEXISTENCE_OF_FIELD_IS_FATAL_ERROR )
throw new Error( "ReadVectorE2GA failed to read \"%s\" as a table.", name.c_str() );
}
else
{
if( !ReadNumber( L, context, "x", vector.m_e1, 0.0 ) )
throw new Error( "ReadVectorE2GA failed to read \"x\" from \"%s\".", name.c_str() );
if( !ReadNumber( L, context, "y", vector.m_e2, 0.0 ) )
throw new Error( "ReadVectorE2GA failed to read \"y\" from \"%s\".", name.c_str() );
}
// Pop the vector table.
lua_pop( L, 1 );
success = true;
}
catch( Error* error )
{
context.IssueError( error );
}
lua_settop( L, top );
return success;
}