"equals" methods for Vector2D, Rectangle

This commit is contained in:
Jörn-Michael Miehe 2023-02-02 14:10:45 +00:00
parent 8efe6ee17c
commit 0372ad6c4d
2 changed files with 21 additions and 1 deletions

View file

@ -18,6 +18,11 @@ export class Vector2D {
public scale(other: number): Vector2D {
return new Vector2D(this.x * other, this.y * other);
}
public equals(other: Vector2D): boolean {
return this.x === other.x &&
this.y === other.y;
}
}
export class Rectangle {
@ -71,6 +76,11 @@ export class Rectangle {
return this.width * this.height;
}
public equals(other: Rectangle): boolean {
return this.origin.equals(other.origin) &&
this.corner.equals(other.corner);
}
public contains(point: Vector2D): boolean {
return point.x >= this.origin.x &&
point.y >= this.origin.y &&

View file

@ -32,6 +32,11 @@ describe("Vector2D Tests", () => {
expect(v2.x).to.equal(3);
expect(v2.y).to.equal(6);
});
it("should compare vectors", () => {
expect(v.equals(v.scale(1))).to.be.true;
expect(v.equals(v.scale(2))).to.be.false;
})
});
describe("Rectangle Tests", () => {
@ -71,11 +76,16 @@ describe("Rectangle Tests", () => {
check_rectangle(r2, 1, 2, 3, 4);
});
it("should compare rectangles", () => {
expect(r1.equals(r2)).to.be.true;
expect(r1.equals(new Rectangle())).to.be.false;
})
it("should create the same rectangle transposed", () => {
const v1t = new Vector2D(v1.x, v2.y);
const v2t = new Vector2D(v2.x, v1.y);
check_rectangle(new Rectangle(v1t, v2t), 1, 2, 3, 4);
expect(r1.equals(new Rectangle(v1t, v2t))).to.be.true;
});
it("should contain itself", () => {