Method onPointerEnter

tests/src/ui/UIEvent.test.ts:38–40

(eventData: PointerEventData)

    upCount = 0;
    dropCount = 0;
    onPointerEnter(eventData: PointerEventData): void {
      ++this.enterCount;
    }

    onPointerExit(eventData: PointerEventData): void {
      ++this.exitCount;