openglobus/tests/math/Ray.test.js

import { ray, Ray } from '../../src/math/Ray';
import { Vec3 } from '../../src/math/Vec3';
import { Plane } from '../../src/math/Plane';

describe('Ray class', () => {
    test('methods', () => {
        const item = new Ray();
        expect(Ray.OUTSIDE).toBe(0);
        expect(Ray.INSIDE).toBe(1);
        expect(Ray.INPLANE).toBe(2);
        expect(Ray.AWAY).toBe(3);
        expect(item.set(new Vec3(), new Vec3())).toBeTruthy();
        expect(item.getPoint(1000)).toBeTruthy();
        expect(item.hitTriangleRes(new Vec3(), new Vec3(), new Vec3(), new Vec3(), 1000)).toBeTruthy();
        expect(item.hitPlaneRes(new Plane(), new Vec3())).toBe(0);
        // expect(item.hitPlane(new Sphere(1, new Vec3()))).toBeTruthy();
        expect(item).toBeTruthy();
    });

    test('intersection', () => {
        let ray = new Ray();
        let res = new Vec3();

        let v0 = new Vec3(0, 0, 0),
            v1 = new Vec3(1, 0, 0),
            v2 = new Vec3(0, 0, 1);

        let orig = new Vec3(0.2, -1, 0.2),
            dir = new Vec3(0, -1, 0);

        ray.set(orig, dir);

        let r = ray.hitTriangleRes(v0, v1, v2, res);

        expect(r).toBe(Ray.AWAY);
    });
});