Function resize

src/engine/ui.ts:360–388

(engine: VisualNovelEngine, _element: unknown, proportionWidth: number, proportionHeight: number)

// ============================================================================

export function resize (engine: VisualNovelEngine, _element: unknown, proportionWidth: number, proportionHeight: number): void {
	const parentElement = engine.parentElement();
	if (!parentElement) return;

	const mainWidth = parentElement.width();
	const mainHeight = parentElement.height();

	const h = Math.floor (mainWidth * (proportionHeight / proportionWidth));

	let widthCss = '100%';
	let heightCss = '100%';
	let marginTopCss: string | number = 0;

	if (h <= mainHeight) {
		const marginTop = Math.floor ((mainHeight - h)/2);
		marginTopCss = marginTop + 'px';
		heightCss = h + 'px';

	} else {
		const w = Math.floor (mainHeight * (proportionWidth/proportionHeight));
		widthCss = w + 'px';
	}

	$_('.forceAspectRatio').style ({
		'width': widthCss,
		'height': heightCss,
		'margin-top': marginTopCss
	});
}

export function goBack (engine: VisualNovelEngine, event: Event, selector: string): void {
	if (!$_(`${selector} [data-screen="game"]`).isVisible ()) {