Function normalizeEvent

packages/melonjs/src/input/pointerevent.ts:468–511

* translate event coordinates * @ignore

(originalEvent: any)

 * @ignore
 */
function normalizeEvent(originalEvent: any): Pointer[] {
	let _pointer: Pointer;

	// PointerEvent or standard Mouse event
	if (device.touchEvent && originalEvent.changedTouches) {
		// iOS/Android Touch event
		for (let i = 0, l = originalEvent.changedTouches.length; i < l; i++) {
			const touchEvent = originalEvent.changedTouches[i];
			_pointer = T_POINTERS.pop()!;
			_pointer.setEvent(
				originalEvent,
				touchEvent.pageX,
				touchEvent.pageY,
				touchEvent.clientX,
				touchEvent.clientY,
				touchEvent.identifier,
			);
			normalizedEvents.push(_pointer);
		}
	} else {
		// Mouse or PointerEvent
		_pointer = T_POINTERS.pop()!;
		_pointer.setEvent(
			originalEvent,
			originalEvent.pageX,
			originalEvent.pageY,
			originalEvent.clientX,
			originalEvent.clientY,
			originalEvent.pointerId,
		);
		normalizedEvents.push(_pointer);
	}

	// if event.isPrimary is defined and false, return
	if (originalEvent.isPrimary === false) {
		return normalizedEvents;
	}

	// else use the first entry to simulate mouse event
	normalizedEvents[0].isPrimary = true;
	Object.assign(pointer, normalizedEvents[0]);

	return normalizedEvents;
}

/**
 * mouse/touch/pointer event management (move)