package org.opentrafficsim.demo;

import org.djunits.unit.LengthUnit;
import org.djunits.value.vdouble.scalar.Length;
import org.opentrafficsim.base.parameters.ParameterException;
import org.opentrafficsim.base.parameters.ParameterSet;
import org.opentrafficsim.base.parameters.ParameterTypes;
import org.opentrafficsim.base.parameters.Parameters;

/**
 * Factory for defaults in demos.
 * <p>
 * Copyright (c) 2013-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
 * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
 * </p>
 * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
 * initial version Apr 8, 2016 <br>
 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
 * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
 */
public final class DefaultsFactory
{

    /**
     * Do not create instance.
     */
    private DefaultsFactory()
    {
        //
    }

    /**
     * Returns a default set of parameters.
     * @return Default set of parameters.
     */
    public static Parameters getDefaultParameters()
    {

        Parameters params = new ParameterSet().setDefaultParameters(ParameterTypes.class);

        // demos use different value from default LMRS value
        try
        {
            params.setParameter(ParameterTypes.LOOKAHEAD, new Length(250, LengthUnit.SI));
        }
        catch (ParameterException pe)
        {
            throw new RuntimeException("Parameter type 'LOOKAHEAD' could not be set.", pe);
        }

        return params;

    }

}