Function sim

packages/melonjs/tests/vector2d.spec.ts:143–147

(steps: number, dt: number)

		const target = new Vector2d(100, 200);
		const lambda = 5;
		const sim = (steps: number, dt: number) => {
			const v = new Vector2d(0, 0);
			for (let i = 0; i < steps; i++) v.damp(target, lambda, dt);
			return v;
		};
		const v60 = sim(60, 1 / 60);
		const v30 = sim(30, 1 / 30);
		expect(v60.x).toBeCloseTo(v30.x, 9);