mirror of
https://github.com/vercel-labs/scriptc.git
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Chris Tate
537ea4d28d
- Support published three.js rotations, bounds, ray intersections, culling, and vertex attributes on native and WASM targets without a JavaScript engine. - Preserve JavaScript class defaults, data descriptors, and captured loop bindings in static code. - Handle typed-array input unions and constructor identities while keeping unsupported method overrides explicit.
60 lines
3.7 KiB
JavaScript
60 lines
3.7 KiB
JavaScript
import { Vector2 } from 'three/src/math/Vector2.js';
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import { Vector3 } from 'three/src/math/Vector3.js';
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import { Euler } from 'three/src/math/Euler.js';
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import { Quaternion } from 'three/src/math/Quaternion.js';
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import { Matrix4 } from 'three/src/math/Matrix4.js';
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import { Box2 } from 'three/src/math/Box2.js';
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import { Box3 } from 'three/src/math/Box3.js';
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import { Sphere } from 'three/src/math/Sphere.js';
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import { Ray } from 'three/src/math/Ray.js';
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import { Plane } from 'three/src/math/Plane.js';
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import { Triangle } from 'three/src/math/Triangle.js';
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import { Frustum } from 'three/src/math/Frustum.js';
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import { Spherical } from 'three/src/math/Spherical.js';
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import { Cylindrical } from 'three/src/math/Cylindrical.js';
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import { generateUUID, seededRandom } from 'three/src/math/MathUtils.js';
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const euler = new Euler(0, 0, 0);
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const quaternion = new Quaternion().setFromEuler(euler);
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console.log('rotation', quaternion.x, quaternion.y, quaternion.z, quaternion.w, euler.order);
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Euler.DEFAULT_ORDER = 'ZYX';
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console.log('default', new Euler().order, euler.order);
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Euler.DEFAULT_ORDER = 'XYZ';
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euler.set(0, Math.PI / 2, 0);
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const rotated = new Vector3(1, 0, 0).applyEuler(euler);
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console.log('rotated', Math.round(rotated.x), Math.round(rotated.y), Math.round(rotated.z));
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const box = new Box3(new Vector3(-1, -1, -1), new Vector3(1, 1, 1));
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console.log('box', box.containsPoint(new Vector3()), box.containsPoint(new Vector3(2, 0, 0)));
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box.expandByPoint(new Vector3(2, 3, 4));
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const size = box.getSize(new Vector3());
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console.log('size', size.x, size.y, size.z);
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const sphere = new Sphere(new Vector3(), 1);
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console.log('sphere', sphere.containsPoint(new Vector3(0, 0.5, 0)), sphere.intersectsBox(box));
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console.log('separated', sphere.intersectsSphere(new Sphere(new Vector3(5, 0, 0), 1)));
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const ray = new Ray(new Vector3(0, 0, 8), new Vector3(0, 0, -1));
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const hit = ray.intersectBox(box, new Vector3());
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console.log('box hit', hit.x, hit.y, hit.z);
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const sphereHit = ray.intersectSphere(sphere, new Vector3());
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console.log('sphere hit', sphereHit.x, sphereHit.y, sphereHit.z);
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const miss = new Ray(new Vector3(10, 10, 10), new Vector3(1, 0, 0));
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console.log('miss', miss.intersectBox(box, new Vector3()) === null, miss.intersectSphere(sphere, new Vector3()) === null);
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const plane = new Plane(new Vector3(0, 0, 1), -2);
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const planeHit = ray.intersectPlane(plane, new Vector3());
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console.log('plane', planeHit.z, plane.distanceToPoint(new Vector3(0, 0, 5)));
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const triangle = new Triangle(new Vector3(0, 0, 0), new Vector3(2, 0, 0), new Vector3(0, 2, 0));
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console.log('triangle', triangle.getArea(), triangle.getNormal(new Vector3()).z);
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const barycentric = triangle.getBarycoord(new Vector3(0.5, 0.5, 0), new Vector3());
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console.log('barycentric', barycentric.x, barycentric.y, barycentric.z);
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const projection = new Matrix4().makePerspective(-1, 1, 1, -1, 1, 10);
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const frustum = new Frustum().setFromProjectionMatrix(projection);
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console.log('frustum', frustum.containsPoint(new Vector3(0, 0, -2)), frustum.containsPoint(new Vector3(0, 0, 2)));
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console.log('visible', frustum.intersectsSphere(new Sphere(new Vector3(0, 0, -3), 0.5)), frustum.intersectsSphere(new Sphere(new Vector3(20, 0, -3), 0.5)));
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const box2 = new Box2().setFromPoints([new Vector2(-1, -2), new Vector2(3, 4)]);
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console.log('box2', box2.min.x, box2.max.y, box2.containsPoint(new Vector2(0, 0)));
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const spherical = new Spherical().setFromVector3(new Vector3(0, 0, 2));
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const cylindrical = new Cylindrical().setFromVector3(new Vector3(0, 3, 2));
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console.log('coordinates', spherical.radius, cylindrical.radius, cylindrical.y);
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console.log('uuid', /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/.test(generateUUID()));
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console.log('seed', seededRandom(42).toFixed(6), seededRandom().toFixed(6));
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