39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
import polygonClipping from "polygon-clipping";
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import Action from "./Action";
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import {
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addPolygonDifferenceToShapes,
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addPolygonIntersectionToShapes,
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shapeToGeometry,
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} from "../helpers/actions";
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class CutShapeAction extends Action {
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constructor(shapes) {
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super();
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this.update = (shapesById) => {
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let actionGeom = shapes.map(shapeToGeometry);
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let cutShapes = {};
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for (let shape of Object.values(shapesById)) {
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const shapeGeom = shapeToGeometry(shape);
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try {
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const difference = polygonClipping.difference(
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shapeGeom,
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...actionGeom
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);
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const intersection = polygonClipping.intersection(
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shapeGeom,
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...actionGeom
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);
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addPolygonDifferenceToShapes(shape, difference, cutShapes);
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addPolygonIntersectionToShapes(shape, intersection, cutShapes);
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} catch {
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console.error("Unable to find intersection for shapes");
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}
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}
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return cutShapes;
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};
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}
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}
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export default CutShapeAction;
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