Area-based resource collection comprises a system and method in which players in a real-time strategy game first define an area of influence, which, after the effects of other areas of influence have been considered, is used in calculating their resource collection potential. Each column element has a number of connection grooves and sliding grooves. For example, an audio encoder performs a pre-processing multi-channel transform on multi-channel audio data, varying the transform so as to control quality. As the pedestal is mounted at the washingdrying machine, it is capable of preventing surfaces of the washingdrying machine and the pedestal from being damaged and of preventing water or other foreign materials from penetrating through a gap between the washingdrying machine and the pedestal by the connection parts mounted between the washingdrying machine and the pedestal.