My cat did the exact same thing. I was told (by my vet) it was because of the shock of the move, and that she was marking her territory. Suggestions to stop this included putting litter trays in all the places she has been weeing, and then gradually moving them nearer and nearer to the point you actually want the litter tray at; when you clean the wet patches, don't use products including amonia as this will encourage her to wee there again; sit tight and wait - she should stop eventually. My cat did, but it took several months and, even now, I find the odd wet patch when I'm least expecting it! Oh, she also used to poo in unusual places but, thankfully, that's stopped too! I know it's frustrating, but smacking her probably won't help in the slightest. Good luck!