AlexandruPopovici
28 lines
789 B
TypeScript
28 lines
789 B
TypeScript
import { Camera, Intersection, Raycaster, Scene, Vector2 } from 'three'
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export class Intersections {
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private raycaster: Raycaster
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public constructor() {
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this.raycaster = new Raycaster()
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this.raycaster.params.Line = { threshold: 0.1 }
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;(this.raycaster.params as { Line2? }).Line2 = {}
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;(this.raycaster.params as { Line2? }).Line2.threshold = 1
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}
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public intersect(
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scene: Scene,
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camera: Camera,
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point: Vector2,
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nearest = true
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): Intersection {
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this.raycaster.setFromCamera(point, camera)
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const target = scene.getObjectByName('ContentGroup')
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const results = this.raycaster.intersectObjects(target.children)
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if (results.length === 0) return null
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if (nearest) results.sort((value) => value.distance)
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return results[0]
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}
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}
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