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24 lines
No EOL
568 B
JavaScript
24 lines
No EOL
568 B
JavaScript
import { useMemo, useState } from "react"
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import Coordinates from "../objects/Coordinates"
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import MapArea from "../objects/MapArea"
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/**
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* Hook which holds values required to create a {@link MapArea}.
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*/
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export default function useMapAreaState() {
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const [zoom, setZoom] = useState(3)
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const [center, setCenter] = useState(new Coordinates(0, 0))
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const mapArea = useMemo(
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() => MapArea.fromZoomLevel(zoom, center),
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[zoom, center]
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)
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return {
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zoom,
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setZoom,
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center,
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setCenter,
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mapArea,
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}
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} |