Inclination calculation apparatus and inclination calculation program, and game apparatus and game program

摘要

An inclination calculation apparatus calculates an inclination of an input device including acceleration detection means capable of sequentially detecting an acceleration in at least two axial directions. The inclination calculation apparatus comprises preliminary data generation means and inclination calculation means. The preliminary data generation means sequentially generates preliminary data which represents an inclination and is uniquely determined from acceleration data output from the acceleration detection means. The inclination calculation means sequentially calculates a new inclination by making an inclination previously calculated closer to an inclination represented by the preliminary data at a predetermined degree.