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import { useEffect } from 'react';
import { useAttributePreference } from '../common/util/preferences';
import { map } from './core/MapView';
const MapDirection = ({ position }) => {
const id = 'directions';
const iconScale = useAttributePreference('iconScale', 1);
useEffect(() => {
map.addSource(id, {
type: 'geojson',
data: {
type: 'FeatureCollection',
features: [],
},
});
map.addLayer({
id,
type: 'symbol',
source: id,
layout: {
'icon-image': 'direction',
'icon-size': iconScale,
'icon-rotate': ['get', 'rotation'],
'icon-rotation-alignment': 'map',
},
});
return () => {
if (map.getLayer(id)) {
map.removeLayer(id);
}
if (map.getSource(id)) {
map.removeSource(id);
}
};
}, []);
useEffect(() => {
map.getSource(id).setData({
type: 'FeatureCollection',
features: [
{
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [position.longitude, position.latitude],
},
properties: {
rotation: position.course,
},
},
],
});
}, [position]);
return null;
};
export default MapDirection;
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