void StartOneshotQuantityAnimationProcess(int targetQuantity)
        {
            StopRunningQuantityAnimationProcess();
            IOneshotQuantityAnimationProcess process = thisProcessFactory.CreateOneshotQuantityAnimationProcess(thisQuantityRoller, targetQuantity);

            process.Run();
            thisRunningQuantityAnimationProcess = process;
        }
        void StartIncrementalQuantityAnimationProcess(int targetQuantity)
        {
            StopRunningQuantityAnimationProcess();
            IIncrementalQuantityAnimationProcess process = thisProcessFactory.CreateIncrementalQuantityAnimationProcess(thisQuantityRoller, targetQuantity);

            process.Run();
            thisRunningQuantityAnimationProcess = process;
        }