Storage medium having game program stored thereon and game apparatus

A storage medium having stored there on a game program executable by a computer of a game apparatus for obtaining motion data from an input device including a motion sensor for outputting the motion data in accordance with a motion of the input device, moving an object located in a virtual game space and displaying the object on a display device, wherein a reference inclination transition which represents reference for an inclination change of the object in accordance with the movement thereof in the virtual game space is stored on a memory, the game program causing the computer to execute:

• a motion data obtaining step of obtaining the motion data which is output from the motion sensor;
• a start inclination calculation step of calculating an inclination of the object when the object starts moving in the virtual game space, based on the motion data obtained in the motion data obtaining step;
• a first difference calculation step of calculating a reference inclination corresponding to the inclination calculated in the start inclination calculation step from the reference inclination transition stored on the memory, and calculating a first difference inclination, which is a difference between the reference inclination and the inclination calculated in the start inclination calculation step;
• a target inclination calculation step of calculating a target inclination of the object in the virtual game space;
• a second difference calculation step of calculating a reference inclination corresponding to the target inclination from the reference inclination transition stored on the memory, and calculating a second difference inclination, which is a difference between the reference inclination and the target inclination;
• a change difference inclination calculation step of calculating a change difference inclination which changes from the first difference inclination to the second difference inclination in accordance with a time passage after a predetermined condition is fulfilled;
• a correction inclination calculation step of adding the change difference inclination calculated in accordance with the time passage to the reference inclination transition in accordance with the time passage to calculate a correction inclination;
• and
• a display control step of setting the inclination of the object in the virtual game space as the correction inclination and displaying the object on the display device.

A game apparatus for obtaining motion data from an input device including a motion sensor for outputting the motion data in accordance with a motion of the input device, moving an object located in a virtual game space and displaying the object on a display device, the game apparatus comprising:

• a memory for storing a reference trajectory along which the object moves in the virtual game space;
• motion data obtaining means for obtaining the motion data which is output from the motion sensor;
• start coordinate set calculation means for calculating a moving start coordinate set associated with the object in the virtual game space, based on the motion data obtained by the motion data obtaining means;
• first difference calculation means for calculating a first corresponding point on the reference trajectory corresponding to the moving start coordinate set from the reference trajectory stored on the memory, and calculating a first difference coordinate set, which is a difference between the first corresponding point and the moving start coordinate set;
• target coordinate set calculation means for calculating a target coordinate set associated with the object in the virtual game space;
• second difference calculation means for calculating a second corresponding point on the reference trajectory corresponding to the target coordinate set from the reference trajectory stored on the memory, and calculating a second difference coordinate set, which is a difference between the second corresponding point and the target coordinate set;
• change difference coordinate set calculation means for calculating a change difference coordinate set which changes from the first difference coordinate set to the second difference coordinate set in accordance with a time passage after a predetermined condition is fulfilled;
• correction coordinate set calculation means for adding the change difference coordinate set calculated in accordance with the time passage to a coordinate set on the reference trajectory in accordance with the time passage to calculate a correction coordinate set;
• and
• display control means for locating the object at a position corresponding to the correction coordinate set in the virtual game space and displaying the object on the display device.

A game apparatus for obtaining motion data from an input device including a motion sensor for outputting the motion data in accordance with a motion of the input device, moving an object located in a virtual game space and displaying the object on a display device, the game apparatus comprising:

• a memory for storing a reference inclination transition which represents reference for an inclination change of the object in accordance with the movement thereof in the virtual game space;
• motion data obtaining means for obtaining the motion data which is output from the motion sensor;
• start inclination calculation means for calculating an inclination of the object when the object starts moving in the virtual game space, based on the motion data obtained by the motion data obtaining means;
• first difference calculation means for calculating a reference inclination corresponding to the inclination calculated by the start inclination calculation means from the reference inclination transition stored on the memory, and calculating a first difference inclination, which is a difference between the reference inclination and the inclination calculated by the start inclination calculation means;
• target inclination calculation means for calculating a target inclination of the object in the virtual game space;
• second difference calculation means for calculating a reference inclination corresponding to the target inclination from the reference inclination transition stored on the memory, and calculating a second difference inclination, which is a difference between the reference inclination and the target inclination;
• change difference inclination calculation means for calculating a change difference inclination which changes from the first difference inclination to the second difference inclination in accordance with a time passage after a predetermined condition is fulfilled;
• correction inclination calculation step of adding the change difference inclination calculated in accordance with the time passage to the reference inclination transition in accordance with the time passage to calculate a correction inclination;
• and
• display control means for setting the inclination of the object in the virtual game space as the correction inclination and displaying the object on the display device.