src/maths/__tests__/Circle.test.ts - dev - githubmirror/pixijs

src/maths/__tests__/Circle.test.ts
107 строк4 KB
dapi303
fix: strokeContains should use alignment (#11072)
15 дек 2024, 18:59
15 дек 2024, 18:593c6ef71
import { Circle } from '../shapes/Circle';

describe('Circle', () =>
{
    it('should create a new circle', () =>
    {
        const circ1 = new Circle();

        expect(circ1.x).toEqual(0);
        expect(circ1.y).toEqual(0);
        expect(circ1.radius).toEqual(0);

        const circ2 = new Circle(10, 10, 5);

        expect(circ2.x).toEqual(10);
        expect(circ2.y).toEqual(10);
        expect(circ2.radius).toEqual(5);
    });

    it('should clone a new circle', () =>
    {
        const circ1 = new Circle(10, 10, 5);

        expect(circ1.x).toEqual(10);
        expect(circ1.y).toEqual(10);
        expect(circ1.radius).toEqual(5);

        const circ2 = circ1.clone();

        expect(circ2.x).toEqual(10);
        expect(circ2.y).toEqual(10);
        expect(circ2.radius).toEqual(5);
        expect(circ1).not.toBe(circ2);
    });

    it('should check if point is within circle', () =>
    {
        const circ1 = new Circle(10, 10, 5);

        expect(circ1.contains(10, 10)).toBe(true);
        expect(circ1.contains(10, 15)).toBe(true);
        expect(circ1.contains(15, 10)).toBe(true);
        expect(circ1.contains(5, 10)).toBe(true);
        expect(circ1.contains(15, 10)).toBe(true);

        expect(circ1.contains(6, 7)).toBe(true);
        expect(circ1.contains(7, 6)).toBe(true);
        expect(circ1.contains(7, 7)).toBe(true);
        expect(circ1.contains(13, 14)).toBe(true);
        expect(circ1.contains(14, 13)).toBe(true);

        expect(circ1.contains(14, 14)).toBe(false);
        expect(circ1.contains(10, 16)).toBe(false);
        expect(circ1.contains(11, 15)).toBe(false);
        expect(circ1.contains(0, 0)).toBe(false);

        const circ2 = new Circle(10, 10, 0);

        expect(circ2.contains(10, 10)).toBe(false);
    });

    it('should check if point is within circle stroke', () =>
    {
        const circle = new Circle(10, 10, 5);

        expect(circle.strokeContains(10 + 5, 10, 4)).toBe(true);
        expect(circle.strokeContains(10 - 5, 10, 4)).toBe(true);
        expect(circle.strokeContains(10, 10 + 5, 4)).toBe(true);
        expect(circle.strokeContains(10, 10 - 5, 4)).toBe(true);

        expect(circle.strokeContains(10 + 5, 10, 2)).toBe(true);
        expect(circle.strokeContains(10 - 5, 10, 2)).toBe(true);

        // now some false ones

        expect(circle.strokeContains(20 + 5, 10, 4)).toBe(false);
        expect(circle.strokeContains(10, 20 + 5, 4)).toBe(false);

        // alignment, outer stroke
        expect(circle.strokeContains(10 + 5 + 0.0, 10, 2, 0)).toBe(false);
        expect(circle.strokeContains(10 + 5 + 0.1, 10, 2, 0)).toBe(true);
        expect(circle.strokeContains(10 + 5 + 2.0, 10, 2, 0)).toBe(true);

        // alignment, center stroke
        expect(circle.strokeContains(10 + 5 - 1.0, 10, 2, 0.5)).toBe(false);
        expect(circle.strokeContains(10 + 5 - 0.9, 10, 2, 0.5)).toBe(true);
        expect(circle.strokeContains(10 + 5 + 1.0, 10, 2, 0.5)).toBe(true);
        expect(circle.strokeContains(10 + 5 + 1.1, 10, 2, 0.5)).toBe(false);

        // alignment, inner stroke
        expect(circle.strokeContains(10 + 5 - 2.0, 10, 2, 1)).toBe(false);
        expect(circle.strokeContains(10 + 5 - 1.9, 10, 2, 1)).toBe(true);
        expect(circle.strokeContains(10 + 5 + 0.0, 10, 2, 1)).toBe(true);
        expect(circle.strokeContains(10 + 5 + 0.1, 10, 2, 1)).toBe(false);
    });

    it('should return framing rectangle', () =>
    {
        const circ1 = new Circle(10, 10, 5);
        const rect1 = circ1.getBounds();

        expect(rect1.left).toEqual(5);
        expect(rect1.top).toEqual(5);
        expect(rect1.right).toEqual(15);
        expect(rect1.bottom).toEqual(15);
    });
});