com.telenav.mesakit.navigation.routing.cost.functions.TravelTimeCostFunction Maven / Gradle / Ivy

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// © 2011-2021 Telenav, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
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// https://www.apache.org/licenses/LICENSE-2.0
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package com.telenav.mesakit.navigation.routing.cost.functions;

import com.telenav.kivakit.core.time.Duration;
import com.telenav.mesakit.graph.Edge;
import com.telenav.mesakit.map.geography.Located;
import com.telenav.mesakit.map.measurements.motion.Speed;
import com.telenav.mesakit.navigation.routing.cost.Cost;
import com.telenav.mesakit.navigation.routing.cost.CostFunction;

/**
 * A cost function that uses or avoids toll roads
 *
 * @author jonathanl (shibo)
 */
public class TravelTimeCostFunction implements CostFunction
{
    private final double fastestInMilliseconds;

    public TravelTimeCostFunction(Duration fastest)
    {
        fastestInMilliseconds = fastest.asMilliseconds();
    }

    public TravelTimeCostFunction(Speed maximum, Located from, Located to)
    {
        this(maximum.timeToTravel(from.location().distanceTo(to.location())));
    }

    @Override
    public Cost cost(Edge edge)
    {
        return Cost.of(Math.min(1.0, edge.travelTime().asMilliseconds() / fastestInMilliseconds));
    }
}