/*
 *  Licensed to GraphHopper and Peter Karich under one or more contributor
 *  license agreements. See the NOTICE file distributed with this work for 
 *  additional information regarding copyright ownership.
 * 
 *  GraphHopper licenses this file to you under the Apache License, 
 *  Version 2.0 (the "License"); you may not use this file except in 
 *  compliance with the License. You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.graphhopper.util.shapes;

import com.graphhopper.util.NumHelper;

/**
 * Double precision coordinates without an associated value. To add one - subclass.
 * <p/>
 * @author Peter Karich
 */
public class CoordTrig<T>
{
    public double lat = Double.NaN;
    public double lon = Double.NaN;

    public CoordTrig()
    {
    }

    public CoordTrig( double lat, double lon )
    {
        this.lat = lat;
        this.lon = lon;
    }

    public double getLon()
    {
        return lon;
    }

    public double getLat()
    {
        return lat;
    }

    public boolean isValid()
    {
        return !Double.isNaN(lat) && !Double.isNaN(lon);
    }

    public void setValue( T t )
    {
        throw new UnsupportedOperationException("Use CoordTrigObjEntry for value access");
    }

    public T getValue()
    {
        throw new UnsupportedOperationException("Use CoordTrigObjEntry for value access");
    }

    @Override
    public int hashCode()
    {
        int hash = 7;
        hash = 83 * hash + (int) (Double.doubleToLongBits(this.lat) ^ (Double.doubleToLongBits(this.lat) >>> 32));
        hash = 83 * hash + (int) (Double.doubleToLongBits(this.lon) ^ (Double.doubleToLongBits(this.lon) >>> 32));
        return hash;
    }

    @Override
    public boolean equals( Object obj )
    {
        if (obj == null)
            return false;

        @SuppressWarnings("unchecked")
        final CoordTrig<T> other = (CoordTrig<T>) obj;
        return NumHelper.equalsEps(lat, other.lat) && NumHelper.equalsEps(lon, other.lon);
    }

    @Override
    public String toString()
    {
        return lat + "," + lon;
    }
}
