You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
3.0 KiB
TypeScript
88 lines
3.0 KiB
TypeScript
import type { Curve, Degrees, GlobalPoint } from "../math";
|
|
import {
|
|
curve,
|
|
degreesToRadians,
|
|
lineSegment,
|
|
lineSegmentRotate,
|
|
pointFrom,
|
|
pointRotateDegs,
|
|
} from "../math";
|
|
import { pointOnCurve, pointOnPolyline } from "./collision";
|
|
import type { Polyline } from "./geometry/shape";
|
|
|
|
describe("point and curve", () => {
|
|
const c: Curve<GlobalPoint> = curve(
|
|
pointFrom(1.4, 1.65),
|
|
pointFrom(1.9, 7.9),
|
|
pointFrom(5.9, 1.65),
|
|
pointFrom(6.44, 4.84),
|
|
);
|
|
|
|
it("point on curve", () => {
|
|
expect(pointOnCurve(c[0], c, 10e-5)).toBe(true);
|
|
expect(pointOnCurve(c[3], c, 10e-5)).toBe(true);
|
|
|
|
expect(pointOnCurve(pointFrom(2, 4), c, 0.1)).toBe(true);
|
|
expect(pointOnCurve(pointFrom(4, 4.4), c, 0.1)).toBe(true);
|
|
expect(pointOnCurve(pointFrom(5.6, 3.85), c, 0.1)).toBe(true);
|
|
|
|
expect(pointOnCurve(pointFrom(5.6, 4), c, 0.1)).toBe(false);
|
|
expect(pointOnCurve(c[1], c, 0.1)).toBe(false);
|
|
expect(pointOnCurve(c[2], c, 0.1)).toBe(false);
|
|
});
|
|
});
|
|
|
|
describe("point and polylines", () => {
|
|
const polyline: Polyline<GlobalPoint> = [
|
|
lineSegment(pointFrom(1, 0), pointFrom(1, 2)),
|
|
lineSegment(pointFrom(1, 2), pointFrom(2, 2)),
|
|
lineSegment(pointFrom(2, 2), pointFrom(2, 1)),
|
|
lineSegment(pointFrom(2, 1), pointFrom(3, 1)),
|
|
];
|
|
|
|
it("point on the line", () => {
|
|
expect(pointOnPolyline(pointFrom(1, 0), polyline)).toBe(true);
|
|
expect(pointOnPolyline(pointFrom(1, 2), polyline)).toBe(true);
|
|
expect(pointOnPolyline(pointFrom(2, 2), polyline)).toBe(true);
|
|
expect(pointOnPolyline(pointFrom(2, 1), polyline)).toBe(true);
|
|
expect(pointOnPolyline(pointFrom(3, 1), polyline)).toBe(true);
|
|
|
|
expect(pointOnPolyline(pointFrom(1, 1), polyline)).toBe(true);
|
|
expect(pointOnPolyline(pointFrom(2, 1.5), polyline)).toBe(true);
|
|
expect(pointOnPolyline(pointFrom(2.5, 1), polyline)).toBe(true);
|
|
|
|
expect(pointOnPolyline(pointFrom(0, 1), polyline)).toBe(false);
|
|
expect(pointOnPolyline(pointFrom(2.1, 1.5), polyline)).toBe(false);
|
|
});
|
|
|
|
it("point on the line with rotation", () => {
|
|
const truePoints = [
|
|
pointFrom(1, 0),
|
|
pointFrom(1, 2),
|
|
pointFrom(2, 2),
|
|
pointFrom(2, 1),
|
|
pointFrom(3, 1),
|
|
];
|
|
|
|
truePoints.forEach((p) => {
|
|
const rotation = (Math.random() * 360) as Degrees;
|
|
const rotatedPoint = pointRotateDegs(p, pointFrom(0, 0), rotation);
|
|
const rotatedPolyline = polyline.map((line) =>
|
|
lineSegmentRotate(line, degreesToRadians(rotation), pointFrom(0, 0)),
|
|
);
|
|
expect(pointOnPolyline(rotatedPoint, rotatedPolyline)).toBe(true);
|
|
});
|
|
|
|
const falsePoints = [pointFrom(0, 1), pointFrom(2.1, 1.5)];
|
|
|
|
falsePoints.forEach((p) => {
|
|
const rotation = (Math.random() * 360) as Degrees;
|
|
const rotatedPoint = pointRotateDegs(p, pointFrom(0, 0), rotation);
|
|
const rotatedPolyline = polyline.map((line) =>
|
|
lineSegmentRotate(line, degreesToRadians(rotation), pointFrom(0, 0)),
|
|
);
|
|
expect(pointOnPolyline(rotatedPoint, rotatedPolyline)).toBe(false);
|
|
});
|
|
});
|
|
});
|