JP5785844B2 - Information processing program, information processing apparatus, information processing system, and information processing method - Google Patents

Description

  The present invention relates to an information processing program, an information processing apparatus, an information processing system, and an information processing method, and more particularly, for example, an information processing program, an information processing apparatus, an information processing system, and an information processing method for performing processing based on user operations. About.

  Conventionally, there is a game system in which a game can be performed based on a change in load applied by a user (see, for example, Patent Document 1). As an example, in the game system disclosed in Patent Document 1, a game process is executed based on a load value detected by the load sensor when the user rides on a board type controller including the load sensor.

JP 2008-264195 A

  However, in the game system disclosed in Patent Document 1, the game processing is executed after the direction of the board-type controller and the direction of the user on the board-type controller are fixedly defined in advance. Therefore, the user is always required to perform an operation according to the defined direction, and the operation method is limited. For example, when the user is placed on the board type controller and operated in a direction different from the defined direction, the operation performed by the user cannot be accurately input to the game device. The desired game process cannot be performed.

  Therefore, an object of the present invention is to provide an information processing program, an information processing apparatus, an information processing system, and an information processing method capable of accurately determining a user's operation and performing processing according to the operation. is there.

  In order to achieve the above object, the present invention may employ the following configuration, for example. When interpreting the description of the claims, it is understood that the scope should be interpreted only by the description of the claims, and the description of the claims and the description in this column are contradictory. In that case, priority is given to the claims.

  In one configuration example of the information processing program of the present invention, data based on a load applied to the input device, which is output from the input device capable of carrying the user's body, can be used and obtained from the input device. It is executed by a computer of an information processing apparatus that processes data. The information processing program causes the computer to function as a center-of-gravity position acquisition unit, a user direction calculation unit, and a processing unit. The center-of-gravity position acquisition unit repeatedly acquires the center-of-gravity position of the load applied to the input device based on the data output from the input device. The user direction calculation means calculates a user direction to step on the input device using the position of the center of gravity. The processing means performs predetermined processing based on the user direction.

  According to the above, it is possible to determine the user direction on the input device and perform processing according to the user direction.

  Further, the user direction calculation means may calculate the user direction based on the moving direction of the center of gravity position.

  Based on the above, the user direction can be easily calculated based on the moving direction of the center of gravity position of the load applied to the input device.

  The user direction calculation means may calculate the user direction using a direction candidate perpendicular to a straight line connecting two centroid positions acquired at different timings by the centroid position acquisition means.

  Based on the above, it is possible to easily calculate the user direction using a direction perpendicular to a straight line connecting two centroid positions acquired at different timings.

  Further, the user direction calculation means may calculate the user direction using a direction candidate perpendicular to a straight line connecting two gravity center positions acquired successively at different timings by the gravity center position acquisition means.

  Based on the above, it is possible to easily calculate the user direction using a direction perpendicular to a straight line connecting two centroid positions acquired successively at different timings.

  The user direction calculation means may update the user direction by bringing the user direction determined in the previous process closer to the direction indicated by the direction candidate at a predetermined rate.

  According to the above, by approaching the direction indicated by the newly obtained direction candidate by a predetermined ratio, it is possible to update the user direction according to the user operation while removing an error or the like of the direction candidate.

  Further, the user direction calculation means may set the ratio larger as the distance between the gravity center positions where the direction candidates are obtained is longer.

  According to the above, it is possible to estimate the user direction more accurately by performing weighting that greatly changes the user direction when the movement amount of the gravity center position is large.

  The user direction calculation means may not change the user direction determined in the previous process when the distance between the gravity center positions where the direction candidates are obtained is shorter than a predetermined length.

  Based on the above, it is possible to remove an error in estimating the user direction using the direction candidates.

  Further, the user direction calculation means repeatedly calculates a direction candidate perpendicular to a straight line connecting two centroid positions repeatedly acquired at different timings, and selects one direction candidate based on the plurality of repeatedly calculated direction candidates. It may be calculated.

  According to the above, by calculating one direction candidate using a plurality of direction candidates, it is possible to reduce the influence of an error that occurs suddenly in the direction candidate on the estimation of the user direction.

  The user direction calculation means may calculate a direction candidate that is closer to the currently set user direction from among a pair of directions perpendicular to the straight line.

  According to the above, it is possible to determine the user direction more accurately using the fact that the user direction does not change abruptly.

  The user direction calculation means may calculate the other direction as a direction candidate when one direction is within a predetermined range from a pair of directions perpendicular to the straight line.

  According to the above, it is possible to improve the determination accuracy of the user direction by excluding the user direction in a posture that is difficult for the user to take on the input device.

  Further, the user direction calculation means repeatedly calculates a direction candidate vector in a direction perpendicular to a straight line connecting two centroid positions repeatedly acquired at different timings and having a distance between the two centroid positions. The direction of one vector obtained by adding the plurality of direction candidate vectors calculated repeatedly may be calculated as a direction candidate.

  According to the above, since the direction of the added vector is a direction weighted by the moving amount of the center of gravity, the user direction can be estimated more accurately.

  Further, the user direction calculation means may calculate a direction candidate vector direction that is closer to the currently set user direction from a pair of directions perpendicular to the straight line.

  According to the above, it is possible to determine the user direction more accurately using the fact that the user direction does not change abruptly.

  The user direction calculation means may calculate the other direction as the direction of the direction candidate vector when one of the pair of directions perpendicular to the straight line is within a predetermined range.

  According to the above, it is possible to improve the determination accuracy of the user direction by excluding the user direction in a posture that is difficult for the user to take on the input device.

  Further, the computer may further function as the determination line setting means. The determination line setting unit sets at least one determination line extending in the user direction calculated by the user direction calculation unit. In this case, the processing means determines that the user has stepped on the input device when the gravity center position repeatedly acquired by the gravity center position acquisition means crosses the determination line, and performs predetermined processing based on the determination. Good.

  Based on the above, the user direction can be used for stepping determination on the input device.

  Further, the computer may further function as stepping center position calculating means. The stepping center position calculating unit calculates the stepping center position of the user who steps on the input device based on the center of gravity position acquired by the center of gravity position acquiring unit. In this case, the determination line setting means may set the determination line at a position with reference to the stepping center position in the user direction.

  Based on the above, it is possible to set the determination line used for the stepping determination at an appropriate position.

  The determination line setting means may set two determination lines extending in the user direction at positions having a predetermined gap with the stepping center position as a center. The processing means determines that the user has stepped on one foot on the input device when the center of gravity position crosses one of the determination lines from the gap, and inputs when the center of gravity position crosses the other of the determination lines from the gap. It may be determined that the user has stepped on the other foot on the device, and a predetermined process may be performed based on the determination.

  According to the above, it is possible to determine the stepping motion more accurately by determining the stepping on the left foot and the stepping on the right foot using different determination lines.

  Further, the stepping center position calculating means may set the stepping center position at a position that follows the center of gravity repeatedly acquired by the center of gravity position acquiring means at a predetermined rate.

  In addition, the stepping center position calculating unit may set the stepping center position at a position obtained by averaging the barycentric positions repeatedly acquired by the barycentric position acquiring unit within a predetermined period.

  Based on the above, the stepping center position can be easily calculated.

  The determination line setting means may change the width of the gap according to the angle of the user direction with respect to a predetermined reference direction.

  According to the above, an appropriate determination line can be set according to the shape of the input device and the like.

  Further, the processing means may perform predetermined processing by changing a direction of at least one of an object set in the virtual world and a virtual camera based on a user direction.

  According to the above, the direction of the object or the virtual camera in the virtual world can be changed according to the user direction.

  In addition, the present invention may be implemented in the form of an information processing apparatus and an information processing system including the above-described units and an information processing method including operations performed by the above units.

  According to the present invention, it is possible to determine the user direction on the input device and perform processing according to the user direction.

1 is an external view for explaining a game system 1 according to an embodiment of the present invention. Functional block diagram of the game apparatus body 5 of FIG. The perspective view which shows an example of the external appearance of the board type controller 9 of FIG. 1 is a block diagram showing an example of an electrical configuration of the board type controller 9 of FIG. The figure which shows an example of the mode of the user who operates using the board type controller 9 of FIG. The figure which shows an example of the image displayed on the monitor 2 of FIG. The figure which shows an example in which a player object front direction changes, when a user changes the stepping direction on the board-type controller 9. The figure which shows an example in which an estimated direction vector is calculated according to the movement of a gravity center position The figure which shows an example of the step determination line set according to the calculated user front direction vector The figure which shows an example of main data and a program memorize | stored in the main memory of the game device main body 5 of FIG. The flowchart which shows an example of the process performed in the game device main body 5 of FIG. A subroutine showing an example of the estimated direction vector calculation process of step 44 in FIG. A subroutine showing an example of the user direction vector calculation process in step 45 in FIG. A subroutine showing an example of the stepping determination line setting process of step 46 in FIG. A subroutine showing an example of the operation setting process of step 47 in FIG. The figure which shows an example of the inversion range which inverts the direction of an estimated direction vector

  With reference to FIG. 1, an information processing apparatus that executes an information processing program according to an embodiment of the present invention and an information processing system including the information processing apparatus will be described. Hereinafter, for the sake of specific explanation, a stationary game apparatus body 5 will be used as an example of the information processing apparatus, and a game system including the game apparatus body 5 will be described. FIG. 1 is an external view showing an example of a game system 1 including a stationary game apparatus 3. FIG. 2 is a block diagram illustrating an example of the game apparatus body 5. Hereinafter, the game system 1 will be described.

  In FIG. 1, a game system 1 includes a home television receiver (hereinafter referred to as a monitor) 2 which is an example of display means, and a stationary game apparatus 3 connected to the monitor 2 via a connection cord. Composed. The monitor 2 includes a speaker for outputting the audio signal output from the game apparatus 3 as audio. In addition, the game apparatus 3 executes an optical disc 4 on which a program (for example, a game program) as an example of the information processing program of the present invention is recorded, and executes the program on the optical disc 4 to display and output a game screen on the monitor 2. It includes a game apparatus main body 5 equipped with a computer, a controller 7 for giving the game apparatus main body 5 operation information necessary for operating objects displayed on the display screen, and a board type controller 9. The game system 1 executes a game process in the game apparatus body 5 based on at least a game operation using the board-type controller 9, and displays a game image obtained by the game process on a display device such as the monitor 2. It is. Note that the game apparatus body 5, the controller 7, and the board type controller 9 are connected so as to be wirelessly communicable. For example, the wireless communication is performed according to the Bluetooth (registered trademark) standard, but may be performed according to another standard such as infrared or wireless LAN.

  The game apparatus body 5 includes a wireless controller module 19 (see FIG. 2). The wireless controller module 19 receives data wirelessly transmitted from the controller 7 and / or the board type controller 9 and transmits data from the game apparatus body 5 to the controller 7, so that the controller 7 and / or the board type controller 9 and the game are transmitted. The apparatus main body 5 is connected by wireless communication. In addition, an optical disk 4 that is an example of an information storage medium that can be used interchangeably with the game apparatus body 5 is attached to and detached from the game apparatus body 5.

  The game apparatus body 5 is equipped with a flash memory 17 (see FIG. 2) that functions as a backup memory that stores data such as save data in a fixed manner. The game apparatus main body 5 displays the result as a game image on the monitor 2 by executing a game program or the like stored on the optical disc 4. The game program or the like is not limited to the optical disc 4 and may be executed in advance recorded in the flash memory 17. Further, the game apparatus body 5 can reproduce the game state executed in the past by using the save data stored in the flash memory 17 and display the game image on the monitor 2. The user of the game apparatus 3 can enjoy the progress of the game by operating the controller 7 while viewing the game image displayed on the monitor 2 or the like.

  The controller 7 and the board type controller 9 wirelessly transmit transmission data such as operation information to the game apparatus body 5 incorporating the wireless controller module 19 using, for example, Bluetooth technology. The controller 7 is an operation means for mainly selecting an option displayed on the display screen of the monitor 2. The controller 7 is provided with a housing large enough to be held with one hand, and a plurality of operation buttons (including a cross key and the like) exposed on the surface of the housing.

  In other embodiments, the controller 7 and / or the board-type controller 9 and the game apparatus body 5 may be connected by wire. In this embodiment, the game system 1 includes one controller 7 and one board-type controller 9, but the game apparatus body 5 can communicate with a plurality of controllers 7 and a plurality of board-type controllers 9. By using the number of controllers 7 and the board type controller 9 at the same time, it is possible to play a game with a plurality of people.

  The controller 7 has a housing formed by plastic molding, for example, and a plurality of operation portions (operation buttons) are provided in the housing. Then, the controller 7 transmits operation data indicating an input state to the operation unit (whether or not each operation button is pressed) to the game apparatus body 5. In the embodiment of the present invention to be described later, it is possible to play a game without using the controller 7. The detailed configuration of the board type controller 9 will be described later.

  Next, the internal configuration of the game apparatus body 5 will be described with reference to FIG. FIG. 2 is a block diagram illustrating an example of the configuration of the game apparatus body 5. The game apparatus body 5 includes a CPU (Central Processing Unit) 10, a system LSI (Large Scale Integration) 11, an external main memory 12, a ROM / RTC (Read Only Memory / Real Time Clock) 13, a disk drive 14, and an AV-IC. (Audio Video-Integrated Circuit) 15 and the like.

  The CPU 10 executes processing by executing a program stored on the optical disc 4 and functions as a game processor. The CPU 10 is connected to the system LSI 11. In addition to the CPU 10, an external main memory 12, a ROM / RTC 13, a disk drive 14, and an AV-IC 15 are connected to the system LSI 11. The system LSI 11 performs processing such as control of data transfer between components connected thereto, generation of an image to be displayed, and acquisition of data from an external device. The internal configuration of the system LSI 11 will be described later. The volatile external main memory 12 stores a program read from the optical disk 4, a program read from the flash memory 17, and various data, and stores a work area and a buffer of the CPU 10. Used as a region. The ROM / RTC 13 includes a ROM (so-called boot ROM) in which a program for starting up the game apparatus body 5 is incorporated, and a clock circuit (RTC) that counts time. The disk drive 14 reads program data, texture data, and the like from the optical disk 4 and writes the read data to the internal main memory 35 or the external main memory 12 described later.

  The system LSI 11 is provided with an input / output processor 31, a GPU (Graphics Processor Unit) 32, a VRAM (Video RAM) 34, and an internal main memory 35. Although not shown, these components 31, 32, 34, and 35 are connected to each other by an internal bus.

  The GPU 32 forms part of the drawing means and generates an image in accordance with a graphics command (drawing command) from the CPU 10. The VRAM 34 stores data (data such as polygon data and texture data) necessary for the GPU 32 to execute the graphics command. When an image is generated, the GPU 32 creates image data using data stored in the VRAM 34.

  The image data generated as described above is read by the AV-IC 15. The AV-IC 15 outputs the read image data to the monitor 2. Further, the AV-IC 15 reads the audio data generated in the system LSI 11 and outputs it to the speaker of the monitor 2. As a result, an image is displayed on the monitor 2 and a sound is output from the speaker.

  The input / output processor (I / O processor) 31 transmits / receives data to / from components connected thereto and downloads data from an external device. The input / output processor 31 is connected to the flash memory 17 and the wireless controller module 19. An antenna 23 is connected to the wireless controller module 19.

  The input / output processor 31 receives operation data and the like transmitted from the controller 7 and / or the board type controller 9 via the antenna 23 and the wireless controller module 19 and stores them in the buffer area of the internal main memory 35 or the external main memory 12. Store (temporary storage). As in the case of the external main memory 12, the internal main memory 35 may store a program read from the optical disc 4, a program read from the flash memory 17, or various data. The CPU 10 may be used as a work area or a buffer area.

  The input / output processor 31 is connected to a network via a wireless communication module and an antenna (not shown), and can communicate with other game devices and various servers connected to the network. The input / output processor 31 receives data transmitted from other game devices and data downloaded from a download server via the network, the antenna, and the wireless communication module, and receives the received data in the flash memory 17. To remember. In the flash memory 17, in addition to data transmitted and received between the game apparatus body 5 and other game apparatuses and various servers, save data (process result data or halfway) of the game played using the game apparatus body 5 is stored. Data) may be stored.

  Next, the configuration of the board type controller 9 will be described with reference to FIGS. 3 and 4. FIG. 3 is a perspective view showing an example of the appearance of the board-type controller 9 shown in FIG. As shown in FIG. 3, the board-type controller 9 includes a base 9a on which the user rides (a user's foot is placed), and at least four load sensors 94a to 94d for detecting a load applied to the base 9a. . Each of the load sensors 94a to 94d is included in the base 9a, and in FIG. 3, their arrangement positions are indicated by broken lines. In the following description, the four load sensors 94a to 94d may be described as the load sensor 94 when collectively described.

  The base 9a is formed in a substantially rectangular parallelepiped and has a substantially rectangular shape when viewed from above. For example, the base 9a has a rectangular short side set to about 30 cm and a long side set to about 50 cm. The upper surface of the base 9a is formed flat, and a pair of surfaces are set for the user to put on both feet and ride. Specifically, the surface on which the user puts his left foot when the direction in which the power button 9c is provided is arranged to be behind the user in the initial setting (in FIG. 3) A region surrounded by a double line on the far left side) and a surface for placing the left foot (a region surrounded by a double line on the right front side in FIG. 3) are set. And the side surfaces of the four corners of the base 9a are formed, for example, so as to partially protrude in a columnar shape.

  In the table 9a, the four load sensors 94a to 94d are arranged at a predetermined interval. In this embodiment, the four load sensors 94a to 94d are arranged at the peripheral edge of the base 9a, specifically at the four corners. The interval between the load sensors 94a to 94d is set to an appropriate value so that the intention of the game operation according to the user's load applied to the table 9a can be detected with higher accuracy. For example, the load sensors 94 a to 94 d are provided at locations where four legs provided at the lower corners of the board-type controller 9 are arranged.

  The load sensor 94 is, for example, a strain gauge (strain sensor) type load cell, and is a load converter that converts an input load into an electric signal. In the load sensor 94, the strain generating body is deformed and distorted in response to the load input. This strain is converted into a change in electrical resistance by a strain sensor attached to the strain generating body, and further converted into a change in voltage. Therefore, the load sensor 94 can output a voltage signal indicating the input load from the output terminal.

  The load sensor 94 may be another type of load sensor such as a tuning fork vibration type, a string vibration type, a capacitance type, a piezoelectric type, a magnetostrictive type, or a gyro type.

  Returning to FIG. 3, the board-type controller 9 is further provided with a power button 9c. When the power button 9c is operated (for example, the power button 9c is pressed) while the board type controller 9 is not activated, power is supplied to each circuit component (see FIG. 4) of the board type controller 9. However, the board-type controller 9 may be turned on in accordance with an instruction from the game apparatus body 5 to start supplying power to each circuit component. The board-type controller 9 may be automatically turned off when the state in which the user is not on continues for a certain time (for example, 30 seconds) or longer. Further, when the power button 9c is operated again while the board-type controller 9 is activated, the power supply may be turned off and the power supply to each circuit component may be stopped.

  FIG. 4 is a block diagram showing an example of the electrical configuration of the board type controller 9. In FIG. 4, the flow of signals and data is indicated by solid arrows, and the supply of power is indicated by broken arrows.

  In FIG. 4, the board type controller 9 includes a microcomputer 100 for controlling its operation. The microcomputer 100 includes a CPU, a ROM, a RAM, and the like (not shown), and the CPU controls the operation of the board type controller 9 according to a program stored in the ROM.

  The microcomputer 100 is connected to the power button 9c, the AD converter 102, and the wireless module 106. Further, an antenna 106 a is connected to the wireless module 106. The four load sensors 94a to 94d are connected to the AD converter 102, respectively.

  The load sensors 94a to 94d each output a signal indicating the input load. These signals are converted from analog signals to digital data by the AD converter 102 and input to the microcomputer 100. Identification information of the load sensors 94a to 94d is given to the detection values of the load sensors 94a to 94d so that the detection values of the load sensors 94a to 94d can be identified. In this way, the microcomputer 100 can acquire data indicating the load detection values of the four load sensors 94a to 94d at the same time.

  Data indicating detection values from the load sensors 94a to 94d is transmitted from the microcomputer 100 to the game apparatus body 5 via the wireless module 106 and the antenna 106a as board operation data (input data) of the board type controller 9. For example, when a load is detected in response to a command from the game apparatus body 5, the microcomputer 100 receives the detected value data of the load sensors 94 a to 94 d from the AD converter 102 and receives the detected value data as a game. It transmits to the apparatus main body 5. Note that the microcomputer 100 may transmit the detection value data to the game apparatus body 5 at regular intervals. When the transmission cycle is longer than the load detection cycle, data including load values at a plurality of detection timings detected up to the transmission timing may be transmitted.

  The wireless module 106 can communicate with the same wireless standard (Bluetooth, wireless LAN, etc.) as the wireless controller module 19 of the game apparatus body 5. Therefore, the CPU 10 of the game apparatus body 5 can transmit an information acquisition command to the board type controller 9 via the wireless controller module 19 or the like. Thus, the board type controller 9 can receive commands from the game apparatus body 5 via the wireless module 106 and the antenna 106a. Further, the board-type controller 9 can transmit board operation data including load detection values (or load calculation values) of the load sensors 94 a to 94 d to the game apparatus body 5.

  For example, in the case of a game that is executed using a mere total value of four load values detected by the four load sensors 94a to 94d, the user performs the four load sensors 94a to 94d of the board type controller 9. Can take any position. That is, the user can play the game by riding in any direction on any position on the table 9a. However, depending on the type of game, the position of the load value detected by the four load sensors 94 is identified with respect to the board-type controller 9, and the user determines which position the board-type controller 9 has. Processing may be performed by identifying whether the vehicle is riding in such a direction. In this case, it is possible to estimate the positional relationship between the board type controller 9 and the user using the load values obtained from the four load sensors 94 of the board type controller 9, and to perform processing using the user direction as a direction input. It becomes possible.

  However, when the direction input is performed using the board type controller 9, the positional relationship between the board type controller 9 and the user needs to be grasped as an initial setting. In this case, for example, the positional relationship between the four load sensors 94 and the user is defined in advance in the initial setting, and the user may get on the platform 9a so that the predetermined positional relationship is obtained in the initial setting. It may be assumed. Typically, a positional relationship in which there are two load sensors 94a to 94d on each of the front, rear, left and right of the user who rides on the center of the base 9a, that is, the user gets on the center of the base 9a of the board type controller 9 The positional relationship is defined in the initial setting. In this case, in this embodiment, the base 9a of the board-type controller 9 is formed in a rectangular shape in plan view, and the power button 9c is provided on one side (long side) of the rectangle. As a mark, the user is requested to have the long side provided with the power button 9c in a predetermined direction (front, back, left or right) to get on the base 9a in the initial setting in advance. Decide it. In this way, the load values detected in the initial settings by the load sensors 94a to 94d are the load values in a predetermined direction (right front, left front, right rear, and left rear) as viewed from the user. Specifically, in the initial setting, the user gets on the base 9a so that the long side provided with the power button 9c is the left and right of the user. In this case, the load values detected in the initial setting by the load sensors 94a to 94d are the right rear load value, the left rear load value, the right front load value, and the left front load value as viewed from the user. After the initial setting, a change in the direction of the user riding on the board type controller 9 is estimated using the load values obtained from the four load sensors 94a to 94d, and a predetermined process is performed using the user direction. Is done.

  Next, before describing specific processing performed by the game apparatus body 5, an overview of information processing performed by the game apparatus body 5 will be described with reference to FIGS. FIG. 5 is a diagram illustrating an example of a state of a user who operates using the board-type controller 9. FIG. 6 is a diagram illustrating an example of an image displayed on the monitor 2. FIG. 7 is a diagram illustrating an example in which the front direction (movement direction) of the player object changes when the direction in which the user steps on the board-type controller 9 is changed. FIG. 8 is a diagram illustrating an example in which the estimated direction vector is calculated according to the movement of the center of gravity position. FIG. 9 is a diagram illustrating an example of a stepping determination line set according to the calculated user front direction vector.

  As shown in FIG. 5, the user rides on the board type controller 9 to operate. Then, the user looks at the image displayed on the monitor 2 and operates on the board type controller 9 while changing the front direction of the user on the board type controller 9 (for example, a stepping action or a bending action). To play. Then, the player object Po moves in the virtual world according to the front direction (user direction) of the user on the board-type controller 9 and the user action on the board-type controller 9 (for example, the moving direction, A game image in which the position and direction of the virtual camera set in the virtual world are changed according to the position and direction of the player object Po. As an example, in FIG. 5, a player object Po that walks, jogs, or runs in the virtual world is displayed. Then, the user steps on the board type controller 9 to walk, jog, or run. In this case, the player object Po moves in the virtual world at a speed corresponding to the stepping motion of the user, and the moving direction of the player object Po in the virtual world changes according to the user direction on the board type controller 9.

  For example, when the user performs a stepping action on the board type controller 9, the player object Po moves in the virtual world by walking, jogging, or running at a speed corresponding to the stepping action. Further, when the user bends and stretches on the board-type controller 9, the player object Po jumps and moves in the virtual world with a jumping force corresponding to the bending and stretching motion. Thus, the user can change the moving method and moving speed of the player object Po by the operation on the board-type controller 9.

  As described above, the board type controller 9 outputs a load detection value corresponding to the user operation on the board type controller 9. If the load detection value is used, it is possible to calculate the total load applied to the board type controller 9 and the position of the center of gravity of the load applied to the board type controller 9. Further, if the change in the total load or the change in the position of the center of gravity is used, it is possible to estimate what operation the user is performing on the board type controller 9. The moving method and moving speed of the player object Po are set according to the user action estimated on the board type controller 9 as described above.

  Further, the direction of the player object Po in the virtual world (for example, the front direction or the moving direction of the player object Po) changes according to the user direction on the board-type controller 9. As an example, as shown in FIG. 7, when the direction in which the user is stepping on the board-type controller 9 is changed to the left (that is, when the user direction is changed to the left), the direction in which the player object Po moves (The front direction of the player object Po) changes to the left when viewed from the player object Po. In addition, when the direction in which the user is stepping on the board-type controller 9 is changed to the right (that is, when the user direction is changed to the right), the direction in which the player object Po moves is the right when viewed from the player object Po. To change. In this way, by linking the user direction on the board type controller 9 with the posture and movement direction of the player object Po, the user can see the reality as if he / she is moving in the virtual world on the board type controller 9. Certain operations are possible. As for the position and direction of the virtual camera for generating a virtual world image including the player object Po and displaying it on the monitor 2, the posture and movement direction of the player object Po change (that is, on the board type controller 9). It may be changed according to the change of the user direction) or may not be changed. In the former case, by linking the direction and position of the player object Po with the direction and position of the virtual camera, the user can further feel as if the user is moving in the virtual world via the monitor 2. it can.

  When the user direction on the board type controller 9 is estimated, an estimated direction vector calculated based on the movement of the gravity center position of the load applied to the board type controller 9 is used. For example, as shown in FIG. 8, the estimated direction vector is a predetermined coordinate system corresponding to the position on the board 9a of the board-type controller 9 (for example, the center of the board 9a is the origin, and the long side direction of the board 9a is the X1 axis. In the X1Y1 coordinate system with the direction and the short side direction as the Y1 axis direction), it is perpendicular to a straight line connecting the two centroid positions obtained at different points in time (typically two centroid positions obtained successively). In addition, the length of the straight line is set in a direction parallel to the upper surface of the board-type controller 9 (for example, in the horizontal direction). That is, the estimated direction vector is the length of the movement amount of the centroid position and is set in a direction perpendicular to the movement direction of the centroid position. Here, the direction in which the estimated direction vector is set may be two directions, that is, a left horizontal direction and a right horizontal direction with respect to the moving direction. As will be apparent from the description below, the estimated direction vector is selected from the two directions that is closer to the direction of the user direction vector set in the processing described later. The user direction is estimated by a user direction vector calculated by adding a predetermined number (for example, 30 frames) of the estimated direction vector set as described above. Specifically, a user direction vector is calculated by normalizing the estimated direction vector by adding a predetermined number in the order of the obtained time series, and the direction of the user direction vector is the current user direction on the board type controller 9 It is estimated that.

  In addition, the position of the center of gravity is also used in determining the operation of the user stepping on the board type controller 9. For example, in the coordinate system, when the user raises the left foot in the stepping motion and lowers the right foot, the center of gravity moves (right foot region), and when the user raises the right foot and lowers the left foot in the stepping motion An area (left foot area) in which the center of gravity moves is set. For example, when the user steps on the board-type controller 9 so that the long side on which the power button 9c is provided is backward, the left and right on the base 9a (for example, left and right with the power button 9c rearward). A left foot region and a right foot region are set, and a neutral region having a predetermined width extending in the front-rear direction of the user is set between the left foot region and the right foot region. Then, it is determined that the user has raised the left foot when the position of the center of gravity moves from the neutral region to the right foot region, and it is determined that the user has raised the right foot when the position of the center of gravity moves from the neutral region to the left foot region.

  Note that it is conceivable that the user steps on the board type controller 9 while changing the direction. In this case, as shown in FIG. 9, the user direction vector is also used when determining the action of the user stepping on the board type controller 9. Here, if the positions of the left foot region, the right foot region, and the neutral region are fixed, if the user changes the direction on the board-type controller 9, an accurate stepping determination cannot be made. In such a case, the left foot region, the right foot region, and the neutral region in the coordinate system may be moved based on the user direction vector calculated using the movement of the gravity center position in the coordinate system. For example, the direction in which the neutral region extends is changed to the direction of the user direction vector, and the neutral region is moved so that the center position of the neutral region matches the stepping center position of the user. Then, the left foot region and the right foot region are moved according to the movement of the neutral region. As described above, by moving the left foot region, the right foot region, and the neutral region, even if the user steps on the board-type controller 9, the stepping determination can be performed accurately.

  Next, details of information processing performed in the game system 1 will be described. First, main data used in the information processing will be described with reference to FIG. FIG. 10 shows main data and programs stored in the external main memory 12 and / or the internal main memory 35 of the game apparatus body 5 (hereinafter, the two main memories are simply referred to as main memory). It is a figure which shows an example.

  As shown in FIG. 10, the data storage area of the main memory includes operation data Da, load value data Db, centroid position data Dc, estimated direction vector data Dd, user direction vector candidate data De, user direction vector data Df, centroid Movement amount data Dg, stepping center position data Dh, stepping determination line data Di, object motion data Dj, travel speed data Dk, travel distance data Dm, stepping flag data Dn, image data Do, and the like are stored. In addition to the data included in the information shown in FIG. 10, data necessary for processing, such as data related to other objects displayed on the monitor 2, and the like are appropriately stored in the main memory. Various program groups Pa constituting the information processing program are stored in the program storage area of the main memory.

  The operation data Da stores a series of operation information transmitted as transmission data from the controller 7 or the board type controller 9, and is updated to the latest operation data. For example, the operation data Da includes load data Da1 and the like. The load data Da1 is data indicating load detection values detected by the load sensors 94a to 94d of the board type controller 9, respectively.

  Note that the wireless controller module 19 included in the game apparatus body 5 includes data (for example, a load detection value) included in operation information transmitted from the controller 7 or the board-type controller 9 at a predetermined cycle (for example, every 1/200 second). Data) is received and stored in a buffer (not shown) provided in the wireless controller module 19. Thereafter, the data stored in the buffer is read every frame (for example, every 1/60 seconds) as the processing cycle, and the operation data Da (for example, load data Da1) in the main memory is updated. .

  At this time, since the cycle for receiving the operation information is different from the processing cycle, the operation information received at a plurality of times is described in the buffer. In the description of the processing to be described later, a mode is used in which processing is performed using only the latest operation information among the operation information received at a plurality of points in time and proceeds to the next step in each step to be described later.

  Further, in the processing flow to be described later, the load data Da1 will be described by using an example in which the load data Da1 is updated for each frame that is a processing cycle. However, the load data Da1 may be updated in another processing cycle. For example, the load data Da1 may be updated for each transmission cycle from the board-type controller 9, and the updated load data Da1 may be used for each processing cycle. In this case, the cycle for updating the load data Da1 is different from other processing cycles.

  The load value data Db is a set of data indicating load values detected by the board type controller 9. For example, the load value data Db is a set of data indicating the total value (total load value) of the loads detected by the load sensors 94a to 94d. Specifically, the load value data Db is an array of data indicating the total load value within a predetermined period (for example, 30 frames) calculated in time series, and the total load value is included in each element of the array. Is stored in time series.

  The centroid position data Dc is a set of data indicating the centroid position of the load applied to the board type controller 9. For example, the center-of-gravity position data Dc is a set of data indicating the center-of-gravity position calculated using predetermined formulas from the load values detected by the load sensors 94a to 94d. Specifically, the centroid position data Dc is an array of data indicating the centroid position within a predetermined period (for example, 31 frames or more) calculated in time series. The indicated data is stored in time series.

  The estimated direction vector data Dd is a set of data indicating an estimated direction vector (see FIG. 8) set based on the motion of the center of gravity. For example, the estimated direction vector data Dd is a set of data indicating estimated direction vectors that are repeatedly calculated using the centroid position calculated in the previous process and the centroid position calculated in the current process in time series. It is. Specifically, the estimated direction vector data Dd is an array of data indicating the estimated direction vector within a predetermined period (for example, 30 frames) calculated in time series, and the estimated direction vector is included in each element of the array. Data indicating vectors is stored in time series.

  The user direction vector candidate data De is data indicating user direction vector candidates obtained by adding and normalizing estimated direction vectors obtained within a predetermined time (for example, 30 frames) from the present time.

  The user direction vector data Df is data indicating a user direction vector obtained by estimating the user direction on the board type controller 9. As will be described later, the direction of the user direction vector is sequentially updated by bringing the direction of the user direction vector close to the direction of the user direction vector candidate based on a predetermined condition.

  The centroid movement amount data Dg is data indicating the centroid movement amount indicating the movement amount of the centroid position within a predetermined period.

  The stepping center position data Dh is data indicating the stepping center position of the user who is stepping on the board type controller 9. The stepping determination line data Di is calculated based on the user direction vector and the stepping center position, and is used to determine each determination line (determination reference line, left footstepping determination line, right footstepping determination line) used for determining the stepping motion of the user. It is the data shown.

  The object motion data Dj is data indicating the motion, position, and direction of the player object Po in the virtual world. The traveling speed data Dk is data indicating the speed of the player object Po traveling (walking) in the virtual world. The travel distance data Dm is data indicating the distance of the player object Po that has traveled (walked) in the virtual world.

  The stepping flag data Dn is set to ON when the user performs an operation such as raising the left foot and stepping with the right foot on the board-type controller 9, and is turned off when performing an operation such as raising the right foot and stepping with the left foot. This is data indicating a stepping flag set to.

  The image data Do includes player object data Do1, background image data Do2, and the like. The player object data Do1 is data for arranging the player object Po in the virtual world and generating a game image. The background image data Do2 is data for arranging a background in the virtual world and generating a game image.

  Next, details of information processing performed in the game apparatus body 5 will be described with reference to FIGS. FIG. 11 is a flowchart illustrating an example of information processing executed in the game apparatus body 5. FIG. 12 is a subroutine showing an example of the estimated direction vector calculation process of step 44 in FIG. FIG. 13 is a subroutine showing an example of the user direction vector calculation process in step 45 in FIG. FIG. 14 is a subroutine showing an example of the stepping determination line setting process in step 46 in FIG. FIG. 15 is a subroutine showing an example of the operation setting process of step 47 in FIG. FIG. 16 is a diagram illustrating an example of an inversion range in which the direction of the estimated direction vector is inverted. Here, in the flowcharts shown in FIGS. 11 to 15, the process of displaying the player object Po in response to a user operation using the board-type controller 9 in the information processing will be mainly described. Detailed descriptions of other processes not directly related to the present invention are omitted. 11 to 15, each step executed by the CPU 10 is abbreviated as “S”.

  When the power of the game apparatus body 5 is turned on, the CPU 10 of the game apparatus body 5 executes a startup program stored in the ROM / RTC 13, thereby initializing each unit such as the main memory. Then, the information processing program stored in the optical disc 4 is read into the main memory, and the CPU 10 starts executing the program. The flowchart shown in FIGS. 11-15 is a flowchart which shows the process performed after the above process is completed.

  In FIG. 11, the CPU 10 performs initial setting of the process (step 41), and proceeds to the next step. For example, in the initial setting in step 41, the CPU 10 performs the initial setting such as the setting of the virtual world and the arrangement and direction of the player object Po, and updates the object motion data Dj and the like. Further, in the initial setting in step 41, the CPU 10 is provided with a power button 9c shown in the forward direction of the board type controller 9 (for example, the power button 9c shown in FIG. 3) using the image displayed on the monitor 2 and the sound output from the speaker. The user is urged to ride on the board type controller 9 with the side surface being the rear side surface as the front direction of the user (the direction from the rear side surface toward the front side surface facing the rear side surface). Then, the CPU 10 sets the user direction vector in the front direction of the board type controller 9 and updates the user direction vector data Df. Further, in the initial setting in step 41, other parameters are initialized in order to perform the following information processing. For example, the CPU 10 initializes other parameters indicated by the data stored in the main memory described above to predetermined values (for example, 0, null value, or null value).

  Next, the CPU 10 acquires operation data (step 42), and proceeds to the next step. For example, the CPU 10 uses the operation data received from the board type controller 9 to update the load data Da1 using data indicating a load detection value included in the operation data. Here, the operation data includes data indicating the load detection values detected by the load sensors 94a to 94d, respectively, and the load data 94a to 94d are used to distinguish the load data. Data Da1 is updated. Since the cycle for receiving the operation data is different from the processing cycle for performing step 42, the operation data is received a plurality of times during the processing cycle and stored in the buffer. The step 42 uses an example in which the operation data Da is updated using only the latest operation data among the operation data received a plurality of times.

  Next, the CPU 10 calculates the load value and the gravity center position (step 43), and proceeds to the next step. For example, the CPU 10 calculates the total load value by adding the load detection values indicated by the load data Da1, and updates the latest data in the time series data array in the load value data Db using the data indicating the total load value. To do. Specifically, since the load data Da1 indicates the latest load detection values detected by the load sensors 94a to 94d, the total load value is calculated by summing the load detection values. In addition, the CPU 10 calculates the gravity center position using the load detection value indicated by the load data Da1, and updates the latest data in the time series data array in the gravity center position data Dc using the data indicating the gravity center position. Hereinafter, an example of a calculation method of the center of gravity position will be described.

The position of the center of gravity is the position of the center of gravity of the load applied to the base 9a of the board type controller 9, and is determined by the load value detected by each of the load sensors 94a to 94d (see FIG. 3). For example, the position of the center of gravity is a predetermined coordinate system corresponding to the position of the board-type controller 9 on the base 9a (for example, the center of the base 9a is the origin, the long side direction of the base 9a is the X-axis direction, and the short side direction is Y It is represented by a coordinate value based on an XY coordinate system (axial direction). When the load value detected by the load sensor 94a is a, the load value detected by the load sensor 94b is b, the load value detected by the load sensor 94c is c, and the load value detected by the load sensor 94d is d, the center of gravity The X-axis coordinate value (X) and the Y-axis coordinate value (Y) can be calculated using the following equations.
X = ((a + c) − (b + d)) × m
Y = ((c + d) − (a + b)) × n
Here, m and n are predetermined constants. The center-of-gravity position calculated in this way changes according to the user operation on the board-type controller 9 and weight shift (posture). For example, when the user raises the left foot, the X-axis coordinate value of the center of gravity position becomes a positive value, and when the user raises the right foot, the X-axis coordinate value of the center of gravity position becomes a negative value. The above formula for calculating the center of gravity position is merely an example, and the center of gravity position may be calculated by other methods.

  Next, the CPU 10 calculates an estimated direction vector (step 44) and proceeds to the next step. Hereinafter, the estimated direction vector calculation process performed in step 44 will be described with reference to FIG.

  In FIG. 12, the CPU 10 determines whether or not the gravity center position has been calculated in the previous process (step 51). For example, the CPU 10 refers to the centroid position data Dc and determines whether or not the centroid position has been calculated in step 43 in the previous processing loop. And CPU10 advances a process to the following step 52, when the gravity center position was calculated in the last process. On the other hand, if the gravity center position has not been calculated in the previous process, the CPU 10 ends the process by the subroutine.

  In step 52, the CPU 10 calculates a difference vector and proceeds to the next step. For example, the CPU 10 calculates a difference vector from the centroid position calculated in the previous processing loop to the centroid position calculated in the current processing loop in the coordinate system.

  Next, the CPU 10 calculates an estimated direction vector using the difference vector (step 53), and proceeds to the next step. For example, the CPU 10 calculates a vector having the same length as the difference vector in the direction orthogonal to the difference vector calculated in step 52 in the coordinate system as an estimated direction vector. The direction orthogonal to the difference vector may be a pair of two directions, but the CPU 10 determines an estimated direction vector that is close to the direction of the user direction vector indicated by the user direction vector data Df in the coordinate system. Select as. Then, the CPU 10 updates the latest data in the time series data array in the estimated direction vector data Dd using data indicating the calculated estimated direction vector.

  Next, the CPU 10 determines whether or not the estimated direction vector calculated in step 53 is within the inversion range (step 54). For example, as shown in FIG. 16, an inversion range for inverting the direction of the estimated direction vector is set in the vicinity of the backward direction of the board-type controller 9 (for example, a range of 15 ° to the left and right with respect to the backward direction). . If the estimated direction vector is within the inversion range, the CPU 10 proceeds to the next step 55. On the other hand, when the estimated direction vector is not within the inversion range, the CPU 10 ends the processing by the subroutine.

  In step 55, the CPU 10 inverts the direction of the estimated direction vector calculated in step 53, and updates the latest data in the time series data array in the estimated direction vector data Dd using the inverted estimated direction vector. Then, the processing by the subroutine is finished. Here, the inversion range is provided in the vicinity of the backward direction of the board-type controller 9. This is based on the assumption that the user plays while watching the monitor 2, and generally the forward direction of the board-type controller 9 is the direction toward the monitor 2. In this case, since it is unlikely that the user will be in a gaming posture with the monitor 2 facing away from the board-type controller 9, the board-type controller 9 is set when the direction of the estimated direction vector is set in that direction. By reversing the direction in the vicinity of the forward direction, the user direction determination accuracy can be improved. When such an effect is not expected, the process of inverting the direction of the estimated direction vector may not be performed. In this case, the estimated direction vector can be set in all directions, and the user direction is set without being weighted in all directions, so that the user can also arbitrarily specify directions in all directions.

  Returning to FIG. 11, after the estimated direction vector calculation process in step 44, the CPU 10 calculates the user direction vector and proceeds to the next step (step 45). Hereinafter, the user direction vector calculation process performed in step 45 will be described with reference to FIG.

  In FIG. 13, the CPU 10 adds estimated direction vectors for a predetermined frame (step 61), and proceeds to the next step. For example, the CPU 10 acquires data for the latest predetermined frame (for example, 30 frames) from the time-series data array stored in the estimated direction vector data Dd, and adds the estimated direction vectors indicated by the data. To calculate one vector. If the number of time-series data arrays stored in the estimated direction vector data Dd is less than the predetermined number of frames, one vector is calculated by adding the estimated direction vectors indicated by the data for the time-series data array. do it.

  Next, the CPU 10 normalizes the vector calculated in step 61 to calculate a user direction vector candidate (step 62), and proceeds to the next step. For example, the CPU 10 normalizes the vector calculated in step 61 to length 1, calculates a user direction vector candidate, and updates the user direction vector candidate data De using the user direction vector candidate. The direction of the user direction vector candidate is a vector direction obtained by adding the estimated direction vectors for a predetermined frame. As described above, the length of the estimated direction vector is set based on the amount of movement of the centroid position. As a result, the direction is weighted by the amount of movement of the center of gravity.

  Next, the CPU 10 calculates the center-of-gravity movement amount Mg for a predetermined frame (for example, 30 frames) (step 63), and proceeds to the next step. For example, the CPU 10 of the time-series data array stored in the centroid position data Dc adds the 1st frame to the predetermined frame for calculating the centroid movement amount Mg (for example, the latest 31 frames). To obtain the center of gravity position. Then, the CPU 10 calculates the center-of-gravity movement amount Mg by accumulating the movement distances between the center-of-gravity positions acquired continuously for the predetermined frames, and uses the calculated center-of-gravity movement amount Mg to calculate the center-of-gravity movement amount data Dg. Update. When the number of time-series data arrays stored in the centroid position data Dc is less than the predetermined frame number plus 1, the centroid position indicated by the data for the time-series data array is acquired, The movement distance Mg between the center of gravity positions may be accumulated to calculate the center-of-gravity movement amount Mg.

  Next, the CPU 10 determines whether or not the center-of-gravity movement amount Mg is not less than the threshold value a1 and less than the threshold value a2 (step 64). And CPU10 advances a process to the following step 65, when the gravity center movement amount Mg is more than threshold value a1 and less than threshold value a2. On the other hand, when the center-of-gravity movement amount Mg is not less than the threshold value a1 and less than the threshold value a2, the CPU 10 proceeds to the next step 66. Here, when a1 <a2 and, for example, the length of the board-type controller 9 in the long side direction is 2, the threshold value a1 = 0.75 and the threshold value a2 = 1.00 are set.

In step 65, the CPU 10 updates the user direction vector so that the direction of the user direction vector approaches the direction of the user direction vector candidate by a ratio P% determined by the center-of-gravity movement amount Mg, and ends the processing by the subroutine. For example, when the length in the long side direction of the board-type controller 9 is 2, the CPU 10 sets the ratio P to P = {(Mg-a1) / (a2-a1)} * 100
Calculate with Specifically, when the length of the long side direction of the board-type controller 9 is 2, the ratio P is
P = {(Mg-0.75) /0.25} * 100
It becomes. Then, the CPU 10 refers to the user direction vector candidate data De and the user direction vector data Df, and changes the direction of the user direction vector so that the direction of the user direction vector approaches the direction of the user direction vector candidate by a ratio P%. The user direction vector data Df is updated using the changed user direction vector.

  On the other hand, in step 66, the CPU 10 determines whether or not the center-of-gravity movement amount Mg is equal to or greater than the threshold value a2. And CPU10 advances a process to the following step 67, when the gravity center movement amount Mg is more than threshold value a2. On the other hand, if the center-of-gravity movement amount Mg is less than the threshold value a1, the CPU 10 ends the processing by the subroutine without changing the user direction vector.

  In step 67, the CPU 10 updates the user direction vector data Df using the user direction vector candidate as it is as the user direction vector, and ends the processing by the subroutine.

  In the above-described processing, an example is used in which the ratio of the user direction vector to the user direction candidate is changed according to the center-of-gravity movement amount Mg. This is because the user direction is estimated using the characteristic that the gravity center position moves to the left and right of the user when the user steps on, and weighting that changes the user direction when the movement amount of the gravity center position is large. This is in order to estimate the user direction more accurately. Therefore, the ratio may be changed in accordance with other parameters that enable such weighting. For example, the ratio may be changed according to the length of one vector obtained by adding estimated direction vectors for a predetermined frame in step 61. As for the length of the vector, since the length of the estimated direction vector added is set based on the movement amount of the center of gravity position, as a result, it is handled as a parameter that can be weighted based on the movement amount of the center of gravity. be able to.

  Further, the ratio of bringing the user direction vector close to the user direction candidate may be selectively selected from 0% and 100%. For example, when the center-of-gravity movement amount Mg is less than a predetermined threshold value (for example, the threshold value a1 or the threshold value a2 or a value therebetween), the above ratio is set to 0%, that is, the user direction vector is completely close to the user direction vector candidate. Therefore, the user direction vector is set as it is. When the center-of-gravity movement amount Mg is equal to or greater than a predetermined threshold, the above ratio is set to 100%, that is, the user direction vector candidate is set as the user direction vector as it is.

  Returning to FIG. 11, after the user direction vector calculation processing in step 45, the CPU 10 performs processing for setting a stepping determination line (step 46), and proceeds to the next step. Hereinafter, the stepping determination line setting process performed in step 46 will be described with reference to FIG.

In FIG. 14, the CPU 10 calculates the stepping center position (step 71) and proceeds to the next step. For example, the CPU 10 sets the stepping center position (MX1, MY1) in the coordinate system (X1, Y1) to MX1 = (b2 * MX1a + GX1) / b1
MY1 = (b2 * MY1a + GY1) / b1
The stepping center position data Dh is updated using the calculated stepping center position (MX1, MY1). Here, MX1a and MY1a indicate the X1 coordinate value and the Y1 coordinate value of the stepping center position calculated in the previous process. GX1 and GY1 indicate the X1 coordinate value and the Y1 coordinate value of the latest center-of-gravity position calculated in step 43 above. B1 and b2 are predetermined constants, for example, set as b1 = 180 and b2 = b1-1 = 179. As is clear from the above formula, the stepping center position (MX1, MY1) calculated based on the formula is a predetermined ratio (b2 / b1) to the barycentric position of the latest load applied to the board-type controller 9. Its position changes to follow. Thus, by calculating the position that follows the position of the center of gravity at a predetermined rate, the stepping center position of the user who is stepping on the board type controller 9 can be obtained.

  The stepping center position may be obtained by other methods. For example, a position obtained by averaging the positions of the center of gravity obtained during the immediately preceding predetermined period may be set as the stepping center position. Thus, even if it is the position which averaged the gravity center position in a predetermined period, the stepping center position of the user who is stepping on the board type controller 9 can be calculated | required.

  Further, the stepping center position is a position for estimating an intermediate point between the position where the user puts the left foot and the position where the right foot is put when the user steps. That is, the stepping center position is defined as a position for estimating a position where a straight line extending in the vertical direction from the body center (the center of gravity of the body) of the user riding on the board-type controller 9 intersects the base 9a of the board-type controller 9. It does not matter. Based on such a definition, the stepping center position may be obtained by other methods.

  Next, the CPU 10 sets a determination reference line in the user direction passing through the stepping center position (step 72), and proceeds to the next step. For example, the CPU 10 refers to the user direction vector data Df and the stepping center position data Dh, acquires the current user direction vector and the stepping center position, and passes the stepping center position in the coordinate system to the direction of the user direction vector. A determination reference line (see FIG. 9) extending in the (user direction) is set. Then, the CPU 10 updates data indicating the determination reference line included in the stepping determination line data Di using the set determination reference line.

  Next, the CPU 10 calculates a neutral region width according to the stepping center position and the user direction (step 73), and proceeds to the next step. For example, the CPU 10 sets the neutral region width to be smaller as the smaller one of the angles formed by the straight line in the user direction (the direction of the user direction vector) and the straight line in the front direction of the board-type controller 9 increases. Further, the CPU 10 sets the neutral region width to be smaller as the stepping center position is further away from the center of the base 9a of the board-type controller 9 (that is, the origin of the coordinate system). For example, the size of the base 9a of the board-type controller 9 is finite, and it may be difficult to step on when stepping on the end of the base 9a. Even in such a case, the stepping determination can be accurately performed by setting the neutral region width to be small.

  Next, the CPU 10 sets a left foot determination line and a right foot determination line based on the neutral region width (step 74), and ends the processing by the subroutine. For example, the CPU 10 sets a left foot determination line and a right foot determination line in parallel on both sides around the determination reference line. The CPU 10 sets a left foot determination line on the left side of the determination reference line toward the user direction, sets a right foot determination line on the right side of the determination reference line toward the user direction, and sets the left foot determination line. The left foot determination line and the right foot determination line (see FIG. 9) are set so that the gap width between the right foot determination line and the right foot determination line becomes the neutral region width. Then, the CPU 10 updates data indicating the left foot determination line and the right foot determination line included in the foot determination line data Di using the set left foot determination line and right foot determination line.

  Returning to FIG. 11, after the stepping determination line setting process in step 46, the CPU 10 performs an operation setting process (step 47), and proceeds to the next step. Hereinafter, the operation setting process performed in step 47 will be described with reference to FIG.

  In FIG. 15, the CPU 10 refers to the stepping flag data Dn to determine whether or not the stepping flag is set to off (step 111). Then, when the stepping flag is set to OFF, the CPU 10 proceeds to the next step 112. On the other hand, when the stepping flag is set to ON, the CPU 10 advances the processing to the next step 116.

  In step 112, the CPU 10 determines whether or not the latest center-of-gravity position has moved from the neutral region to the right foot region. For example, the CPU 10 uses the latest center-of-gravity position indicated by the center-of-gravity position data Dc and the right foot-step determination line indicated by the foot-step determination line data Di to determine the right foot step from the neutral region sandwiched between the left foot-step determination line and the right foot-step determination line. It is determined whether or not the center of gravity has moved to the right foot region beyond the line. Then, when the latest center of gravity position moves from the neutral region to the right foot region, the CPU 10 proceeds to the next step 113. On the other hand, when the latest center-of-gravity position has not moved from the neutral region to the right foot region, the CPU 10 proceeds to the next step 116.

  In step 113, the CPU 10 sets the action of the player object Po to the action of raising the left foot, and proceeds to the next step. For example, the CPU 10 updates the object motion data Dj by setting the motion of the player object Po so that the player object Po runs, walks, or stops on the spot with the left foot raised. Here, whether the player object Po is running, walking, or stopped on the spot is set based on the speed indicated by the running speed data Dk. Further, the CPU 10 sets the direction of the player object Po in the virtual world according to the direction of the user direction vector indicated by the user direction vector data Df, and updates the object motion data Dj. When the direction and position of the virtual camera set in the virtual world are changed according to the direction of the user direction vector and the direction of the player object Po, the data related to the virtual camera is updated in step 113 described above.

  Next, the CPU 10 calculates a traveling speed and a traveling distance (step 114), and proceeds to the next step. For example, the CPU 10 sets the length of the process target period (time), the transition of the total load value in the process target period, and the period of the process target period from the time when the right leg is set to the operation to the current time. A travel speed and a travel distance are calculated using at least one of the transitions of the center of gravity.

  As an example, the CPU 10 calculates a traveling speed (speed at which the player object Po moves) based on the length (time) of the processing target period, and updates the traveling speed data Dk using the calculated speed. Specifically, the CPU 10 calculates the speed at which the player object Po moves faster as the length of the processing target period is shorter. In this case, the speed at which the player object Po moves in the virtual world becomes faster as the pitch at which the user steps on the board-type controller 9 is shorter.

  Further, a travel distance (a distance traveled by the player object Po) is calculated based on the length (time) of the processing target period and the movement speed of the player object Po calculated as described above, and the calculated distance is used. Thus, the travel distance data Dm is updated. Specifically, the CPU 10 calculates the distance that the player object Po has moved in the virtual world during the processing target period based on the length of the processing target period and the moving speed of the player object Po. Then, the CPU 10 calculates a new travel distance by adding the calculated travel distance to the travel distance indicated by the travel distance data Dm, and updates the travel distance data Dm using the new travel distance. The CPU 10 calculates a new placement position in the virtual world of the player object Po based on the new travel distance and the direction of the player object Po, and updates the object motion data Dj using the new placement position. .

  Next, the CPU 10 sets the stepping flag on to update the stepping flag data Dn (step 115), and ends the processing by the subroutine.

  In step 116, the CPU 10 refers to the stepping flag data Dn to determine whether or not the stepping flag is set to ON. Then, when the stepping flag is set to ON, the CPU 10 advances the processing to the next step 117. On the other hand, when the stepping flag is set to OFF, the CPU 10 proceeds to the next step 121.

  In step 117, the CPU 10 determines whether or not the latest barycentric position has moved from the neutral region to the left foot region. For example, the CPU 10 uses the latest center of gravity position indicated by the center of gravity position data Dc and the left foot determination line indicated by the foot determination line data Di to determine whether the position of the center of gravity has moved from the neutral area to the left foot area beyond the left foot determination line. Judge whether or not. Then, when the latest center-of-gravity position moves from the neutral region to the left foot region, the CPU 10 proceeds to the next step 118. On the other hand, when the latest center-of-gravity position has not moved from the neutral region to the left foot region, the CPU 10 proceeds to the next step 121.

  In step 118, the CPU 10 sets the action of the player object Po to the action of raising the right foot, and proceeds to the next step. For example, the CPU 10 sets the action of the player object Po and updates the object action data Dj so that the player object Po runs, walks, or stops on the spot with the right foot raised. Here, whether the player object Po is running, walking, or stopped on the spot is set based on the speed indicated by the running speed data Dk as in step 113. Further, the CPU 10 sets the direction of the player object Po in the virtual world according to the direction of the user direction vector indicated by the user direction vector data Df, and updates the object motion data Dj. When the direction and position of the virtual camera set in the virtual world are changed according to the direction of the user direction vector and the direction of the player object Po, the data related to the virtual camera is updated in step 113 described above.

  Next, the CPU 10 calculates a travel speed and a travel distance (step 119), and proceeds to the next step. For example, the CPU 10 sets the operation to raise the left foot until the current time as a processing target period, the length (time) of the processing target period, the transition of the total load value in the processing target period, and the processing target period. Using at least one of the transitions of the center of gravity position, the traveling speed and the traveling distance are calculated in the same manner as in step 114 above.

  Next, the stepping flag is set to OFF and the stepping flag data Dn is updated (step 120), and the processing by the subroutine is terminated.

  On the other hand, when the user does not perform an operation of stepping with the right foot or a stepping with the left foot on the board-type controller 9 (for example, a state where one foot is raised or both feet are lowered in the stepping motion) In this case, the CPU 10 sets the operation that is currently set to continue (step 121), and proceeds to the next step. For example, the CPU 10 sets the raising leg currently set as the object action as it is as the action of the player object Po, and performs the action of running, walking, or stopping on the spot based on the speed indicated by the running speed data Dk. Set and update the object motion data Dj using the set motion. Further, the CPU 10 sets the direction of the player object Po in the virtual world according to the direction of the user direction vector indicated by the user direction vector data Df, and updates the object motion data Dj. When the direction and position of the virtual camera set in the virtual world are changed according to the direction of the user direction vector and the direction of the player object Po, the data related to the virtual camera is updated in step 113 described above.

  Next, the CPU 10 calculates a traveling speed and a traveling distance (step 122), and ends the processing by the subroutine. For example, the CPU 10 attenuates the speed indicated by the traveling speed data Dk by a predetermined value, and updates the traveling speed data Dk using the attenuated speed. Specifically, the CPU 10 calculates the distance traveled by the player object Po in the virtual world based on the speed of the player object Po, and adds the calculated travel distance to the travel distance indicated by the travel distance data Dm. To calculate a new travel distance and update the travel distance data Dm using the new travel distance. Further, the CPU 10 calculates a new placement position of the player object Po in the virtual world based on the new travel distance and the direction of the player object Po, and updates the object motion data Dj using the new placement position. .

  Returning to FIG. 11, after the operation setting process in step 47, the CPU 10 performs a display control process (step 48) and proceeds to the next step. For example, the CPU 10 moves the player object Po based on the motion, position, and direction of the object indicated by the object motion data Dj, places the player object Po in the virtual world, and displays it on the monitor 2. Further, the CPU 10 may generate travel information (for example, character information) based on the travel speed data Dk and the travel distance data Dm and display it on the monitor 2.

  Next, the CPU 10 determines whether or not to end the game (step 49). As a condition for ending the game, for example, a condition that a game is over or a game is cleared is satisfied, or a user performs an operation to end the game. If the game is not finished, the CPU 10 returns to step 42 and repeats the process. If the game is finished, the process according to the flowchart is finished.

  As described above, according to the above-described processing, the direction in which the user is stepping on the board-type controller 9 can be determined, so that the user's operation can be accurately determined. For example, by using the direction as a direction input, it can be used as an operation input for various information processing.

  In the above-described embodiment, the example in which the process of changing the direction of the player object Po in the virtual world according to the user direction in which the user is stepping on the board type controller 9 is used. Other processing may be performed depending on the case. For example, a process of changing the direction of the virtual camera for generating the virtual world to be displayed on the monitor 2 according to the user direction may be performed. In this case, since the line-of-sight direction with respect to the virtual world changes according to the direction in which the user is stepping on the board-type controller 9, the virtual world that can be seen when the user walks in the virtual world can be displayed on the monitor 2. Thus, it is possible to display an image as if it is in the virtual world. Thus, the user direction can be used to control the direction of various characters, objects, virtual cameras, etc. in the virtual world.

  In the embodiment described above, the user's stepping on the board type controller 9 is accurately determined by changing the direction of the stepping determination line (neutral region) according to the user direction. That is, when determining the stepping motion with the stepping determination line (neutral region) fixed, it is difficult to accurately determine the motion when the user changes the stepping direction on the board-type controller 9, but the direction change Accordingly, it is possible to perform accurate motion determination by changing the stepping determination line (neutral region). Thus, the user direction is effective not only for controlling the direction of objects and virtual cameras in the virtual world, but also for controlling the determination line for determining the user action, and for changing the conditions of other determination processes. It goes without saying that it can be used.

  As an example, the above-described stepping determination line (neutral region) can be used to determine an operation in which the user bends and stretches (jumps) on the board type controller 9. For example, when the latest center position is in the neutral region and the total load value reaches or exceeds a predetermined threshold (for example, a value obtained by adding a predetermined ratio to the user's body weight), the user performs the board-type controller 9. Judged that the movement of bending up and down was performed. Also in such a motion determination, since the neutral region can be changed according to the user direction, the motion determination can be performed more accurately.

  Further, in the above description, a processing example is used in which the direction control of the object or the virtual camera is immediately linked in accordance with the direction of the user who is stepping on the board type controller 9. However, a process in which the direction control of the object or the virtual camera is performed with a predetermined time delay according to the change in the user direction may be performed. In this case, after the user direction changes, the direction of the object or the virtual camera changes following the change in the direction after a predetermined time delay.

  In the information processing example described above, when the direction of the estimated direction vector is within the inversion range, the direction of the estimated direction vector is inverted to improve the determination accuracy. However, the direction is inverted in another processing stage. Processing may be performed. For example, when updating the direction of the user direction vector in the process of step 65 or step 67, if the direction of the user direction vector newly set is within the inversion range, the direction of the user direction vector is reversed. It doesn't matter. In this case, the direction inversion process of the user direction vector may be further added to the direction inversion process of the estimated direction vector in step 54 and step 55. Processing may be performed.

  In the information processing example described above, the direction of the user direction vector candidate is calculated by adding a plurality of estimated direction vectors. However, the direction of one estimated direction vector may be used as the direction of the user direction vector candidate as it is. . In this case, after the estimated direction vector is calculated in step 44, the process of step 45 is performed, and the estimated direction vector is normalized in step 62 without performing the process of step 61, and the user direction vector candidate is calculated. . Even in such a case, the length between the centroids is set by setting the length between the centroids used to calculate one estimated direction vector obtained from the user direction vector candidate as the centroid movement amount Mg. When the length is long, weighting for changing the user direction is possible.

  Further, in the above-described processing example, the repeatedly estimated direction vector is calculated using a difference vector connecting two centroid positions continuously calculated at different timings. However, the estimated direction vector may be calculated using other barycentric positions. For example, two centroid positions calculated at different timings may not be calculated continuously, and one centroid position and the centroid position calculated a predetermined time after the centroid position is calculated. The estimated direction vector may be calculated using.

  Further, in the processing example described above, the operation of the user stepping on the board-type controller 9 is determined using two determination lines (a left foot determination line and a right foot determination line). By providing the neutral region in this way, it is possible to prevent stepping determination many times even when the position of the center of gravity moves in various directions around the determination line. When such an effect is not expected, the number of determination lines for determining the user's stepping may be one (for example, a reference determination line; see FIG. 9). In this case, it is determined that the user has stepped on one foot when the position of the center of gravity crosses the determination line from one to the other, and the user moves the other foot when the position of the center of gravity crosses the determination line from one to the other. Judge that you stepped on.

  Further, in the above-described game example, the virtual world image including at least the player object Po is displayed on the monitor 2, but the virtual world image of another aspect may be displayed on the monitor 2. For example, the virtual world image of the subjective viewpoint viewed from the player object Po may be displayed on the monitor 2 without displaying the player object Po. In this case, the depth direction of the virtual world displayed on the monitor 2 from the subjective viewpoint may be the same as the moving direction of the player object Po, or may be different from the moving direction of the player object Po. When the depth direction of the virtual world displayed on the monitor 2 from the subjective viewpoint is the same as the movement direction of the player object Po, the virtual world with the movement direction as the depth direction is displayed on the monitor 2. It goes without saying that the operation for setting the value is intuitive and it is easy to adjust the moving direction to the direction desired by the user.

  In the system example described above, one stationary image display device (monitor 2) is used to display the virtual world. However, a portable image display device may be used. For example, when the user performs a stepping operation on the board-type controller 9 while holding the portable image display device and viewing the image of the image display device, the user holds it even when the stepping direction is changed. The direction of the displayed image display device itself can also be changed, so that it is easy for the user to see the image of the virtual world and the realism of the game can be enhanced. In this case, a portable image display device may be used instead of the one stationary image display device (monitor 2) described above, and a portable image display device is used in addition to the stationary image display device. It can be a system.

  Further, in the processing example described above, an example is used in which an image in which the player object Po runs or walks in the virtual world is displayed on the monitor 2 in accordance with the user action determined using the board-type controller 9. However, it goes without saying that the present invention can be applied to other information processing. For example, an image may be displayed on the monitor 2 in which the player object Po moves by manipulating a vehicle such as a bicycle or a unicycle in the virtual world in accordance with a user action determined using the board-type controller 9.

  In the above description, the board type controller 9 is provided with four load sensors 94. However, if the information on the center of gravity position of the load applied to the board type controller 9 in the above process can be acquired, the five load sensors 94 are provided. The above may also be provided, or three load sensors 94 may be provided.

  In the above description, the controller 7 and the game apparatus body 5 are connected by wireless communication, and the board type controller 9 and the game apparatus body 5 are connected by wireless communication. It does not matter if communication is performed. As a first example, the operation data of the board type controller 9 is wirelessly transmitted to the controller 7, and the controller 7 wirelessly transmits the operation data of the controller 7 together with the operation data received from the board type controller 9 to the game apparatus body 5. In this case, the controller 7 and the game apparatus body 5 are directly connected by wireless communication, but the board type controller 9 and the game apparatus body 5 are connected by wireless communication via the controller 7. As a second example, the operation data of the controller 7 is wirelessly transmitted to the board-type controller 9, and the operation data of the board-type controller 9 is wirelessly transmitted to the game apparatus body 5 together with the operation data received from the controller 7. To do. In this case, the board-type controller 9 and the game apparatus body 5 are directly connected by wireless communication, but the controller 7 and the game apparatus body 5 are connected by wireless communication via the board-type controller 9. . As a third example, the controller 7 and the board type controller 9 are electrically connected via a cable, and operation data of the board type controller 9 is transmitted to the controller 7 via the cable. Then, the controller 7 wirelessly transmits the operation data of the controller 7 together with the operation data received from the board type controller 9 via the cable to the game apparatus body 5. As a fourth example, the controller 7 and the board type controller 9 are electrically connected via a cable, and operation data of the controller 7 is transmitted to the board type controller 9 via the cable. Then, the board-type controller 9 wirelessly transmits the operation data of the board-type controller 9 to the game apparatus body 5 together with the operation data received from the controller 7 via the cable.

  Further, the controller 7 and / or the board type controller 9 and the game apparatus body 5 may be electrically connected via a cable. In this case, the cable connected to the controller 7 and / or the board type controller 9 is connected to the connection terminal of the game apparatus body 5. As a first example, the controller 7 and the game apparatus body 5 are electrically connected via a first cable, and the board-type controller 9 and the game apparatus body 5 are also electrically connected via a second cable. The As a second example, only the controller 7 and the game apparatus body 5 are electrically connected via a cable. In this case, the operation data of the board type controller 9 may be wirelessly transmitted to the controller 7 and then transmitted to the game apparatus body 5 via the cable, or directly transmitted from the board type controller 9 to the game apparatus body 5 directly. May be. As a third example, only the board type controller 9 and the game apparatus main body 5 are electrically connected via a cable. In this case, the operation data of the controller 7 may be transmitted wirelessly to the board-type controller 9 and then transmitted to the game apparatus body 5 via the cable, or directly transmitted from the controller 7 to the game apparatus body 5. Also good.

  In the above embodiment, the stationary game apparatus 3 has been described. However, the information processing program of the present invention is executed by an information processing apparatus such as a portable game apparatus or a general personal computer. May be realized. In another embodiment, the present invention is not limited to a game device, and may be any portable electronic device such as a PDA (Personal Digital Assistant), a mobile phone, a personal computer, a camera, or the like. In any device, the present invention can be realized by connecting the device and the board type controller 9 wirelessly or by wire.

  Moreover, although the example which performs information processing with the game device main body 5 was used in the above description, at least a part of the processing steps in the information processing may be performed with another device. For example, when the game apparatus body 5 is configured to be communicable with another apparatus (for example, a server or another game apparatus), the game apparatus body 5 and the other apparatus cooperate in the processing step in the information processing. It may be executed by doing. As an example, processing for setting the player object Po, the virtual world, and the like is performed in another device, and object motion data, travel speed data, travel distance data, and the like are transmitted from the game apparatus body 5 to the other device, and It is conceivable that information processing is performed. Then, image data indicating the virtual world generated by another device is transmitted to the game apparatus main body 5, and the virtual world is displayed on the monitor 2. In this way, by performing at least a part of the processing steps in the information processing with another device, processing similar to the information processing described above can be performed. Note that at least a part of the processing steps in the information processing may be performed by the board-type controller 9 (microcomputer 100). Further, the above-described information processing can be executed by cooperation between one processor or a plurality of processors included in an information processing system including at least one information processing apparatus. In the above embodiment, the CPU 10 of the game apparatus body 5 executes the predetermined program, so that the process according to the above-described flowchart is performed. All may be done.

  In addition, the shape of the game apparatus body 5 described above, the shape of the controller 7 or the board-type controller 9, and the shape, number, and installation position of various operation buttons and sensors are merely examples, and other shapes, numbers, and It goes without saying that the present invention can be realized even at the installation position. In addition, the processing order, setting value, display mode, value used for determination, and the like used in the information processing described above are merely examples, and the present invention can be realized even in other orders, display modes, and values. Needless to say.

  The information processing program (game program) may be supplied not only to the game apparatus body 5 through an external storage medium such as the optical disc 4 but also to the game apparatus body 5 through a wired or wireless communication line. Further, the information processing program may be recorded in advance in a nonvolatile storage device inside the game apparatus body 5. The information storage medium for storing the information processing program may be a CD-ROM, DVD, or an optical disk storage medium similar to them, a flexible disk, a hard disk, a magneto-optical disk, a magnetic tape, or the like. The information storage medium for storing the information processing program may be a nonvolatile semiconductor memory or a volatile memory. Such a storage medium can be referred to as a computer-readable recording medium. For example, the various functions described above can be provided by causing a computer or the like to read and execute the programs of these recording media.

  Although the present invention has been described in detail above, the above description is merely illustrative of the present invention in all respects and is not intended to limit the scope thereof. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. It is understood that the scope of the present invention should be construed only by the claims. Moreover, it is understood that those skilled in the art can implement an equivalent range from the description of the specific embodiments of the present invention based on the description of the present invention and the common general technical knowledge. In addition, it is to be understood that the terms used in the present specification are used in the meaning normally used in the art unless otherwise specified. Thus, unless defined otherwise, all technical and technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

  An information processing program, an information processing apparatus, an information processing system, and an information processing method according to the present invention can accurately determine a user's operation and perform processing based on the user's operation. It is useful as an apparatus, an information processing system, and an information processing method.

DESCRIPTION OF SYMBOLS 1 ... Game system 2 ... Monitor 706 ... Speaker 3 ... Game device 4 ... Optical disk 5 ... Game device main body 10 ... CPU
11 ... System LSI
12 ... External main memory 13 ... ROM / RTC
14 ... Disk drive 15 ... AV-IC
16 ... AV connector 17 ... Flash memory 19 ... Wireless controller module 23 ... Antenna 31 ... Input / output processor 32 ... GPU
34 ... VRAM
35 ... Internal main memory 7 ... Controller 100 ... Microcomputer 106 ... Wireless module 9 ... Board type controller 94 ... Load sensor 102 ... AD converter

Claims (23)

Data based on the load applied to the input device that is output from the input device that can carry the user's body is available, and is executed by the computer of the information processing device that processes the data obtained from the input device. An information processing program,
Centroid position acquisition means for repeatedly acquiring the centroid position of the load applied to the input device based on the data output from the input device;
User direction calculation means for calculating a user direction to step on the input device using the center of gravity position;
An information processing program that functions as processing means for performing predetermined processing based on the user direction.   The information processing program according to claim 1, wherein the user direction calculation unit calculates the user direction based on a moving direction of the barycentric position.   3. The user direction calculation unit according to claim 1, wherein the user direction calculation unit calculates the user direction using a direction candidate perpendicular to a straight line connecting two centroid positions acquired at different timings by the centroid position acquisition unit. Information processing program.   The user direction calculation means calculates the user direction using a direction candidate perpendicular to a straight line connecting two centroid positions successively acquired at different timings by the centroid position acquisition means. An information processing program according to any one of the above.   The user direction calculation means updates the user direction by bringing the user direction determined in the previous process closer to the direction indicated by the direction candidate at a predetermined rate. Information processing program described in 1.   The information processing program according to claim 5, wherein the user direction calculation unit sets the ratio larger as the distance between the gravity center positions where the direction candidates are obtained is longer.   The information processing program according to claim 6, wherein the user direction calculation unit does not change the user direction determined in the previous process when the distance between the gravity center positions where the direction candidates are obtained is shorter than a predetermined length. .   The user direction calculation unit repeatedly calculates a direction candidate perpendicular to a straight line connecting two gravity center positions repeatedly acquired at different timings, and calculates one direction candidate based on the plurality of repeatedly calculated direction candidates. The information processing program according to any one of claims 3 to 7.   The said user direction calculation means calculates the direction near the said user direction currently set among the pair of directions perpendicular | vertical to the said straight line as said direction candidate. Information processing program.   10. The user direction calculating unit according to claim 3, wherein, when one direction is within a predetermined range, the other direction is calculated as the direction candidate when the direction is within a predetermined range. Information processing program described in 1.   The user direction calculation means repeatedly calculates a direction candidate vector in a direction perpendicular to a straight line connecting two centroid positions repeatedly acquired at different timings, and having a distance between the two centroid positions. The information processing program according to any one of claims 3 to 7, wherein a direction of one vector obtained by adding the plurality of calculated direction candidate vectors is calculated as the direction candidate.   The information processing program according to claim 11, wherein the user direction calculation unit calculates, as a direction of the direction candidate vector, a direction closer to the user direction set at present among a pair of directions perpendicular to the straight line. .   The said user direction calculation means calculates the other direction as a direction of the said direction candidate vector, when one direction is in a predetermined range among a pair of directions perpendicular | vertical to the said straight line. Information processing program. The computer further functions as determination line setting means for setting at least one determination line extending in the user direction calculated by the user direction calculation means,
The processing means determines that the user has stepped on the input device when the gravity center position repeatedly acquired by the gravity center position acquisition means crosses the determination line, and performs the predetermined processing based on the determination. The information processing program according to any one of claims 1 to 13. Based on the center-of-gravity position acquired by the center-of-gravity position acquisition unit, the computer further functions as a stepping center position calculating unit that calculates a stepping center position of a user stepping on the input device,
The information processing program according to claim 14, wherein the determination line setting means sets the determination line at a position with respect to the stepping center position in the user direction. The determination line setting means sets the two determination lines extending in the user direction at positions having a predetermined gap around the stepping center position,
The processing means determines that the user has stepped on one foot on the input device when the position of the center of gravity crosses one of the determination lines from the gap, and the center of gravity position of the determination line extends from the gap. The information processing program according to claim 15, wherein when crossing the other, it is determined that the user has stepped on the other foot on the input device, and the predetermined processing is performed based on the determination.   The information processing program according to claim 15 or 16, wherein the stepping center position calculating unit sets the stepping center position at a position that follows the center of gravity repeatedly acquired by the center of gravity position acquiring unit at a predetermined rate.   The information processing program according to claim 15 or 16, wherein the stepping center position calculating unit sets the stepping center position at a position obtained by averaging the barycentric positions repeatedly acquired by the barycentric position acquiring unit within a predetermined period.   The information processing program according to claim 16, wherein the determination line setting unit changes a width of the gap according to an angle of the user direction with respect to a predetermined reference direction.   The said processing means performs the said predetermined process by changing the direction of at least one of the object and virtual camera which were set to the virtual world based on the said user direction. Information processing program described in 1. Data based on the load applied to the input device that is output from the input device that can carry the user's body is available, and is an information processing device that processes data obtained from the input device,
Based on the data output from the input device, center of gravity position acquisition means for repeatedly acquiring the center of gravity position in the load applied to the input device;
User direction calculation means for calculating a user direction to step on the input device using the center of gravity position;
An information processing apparatus comprising processing means for performing predetermined processing based on the user direction. A plurality of devices are configured to be communicable, and data based on the load applied to the input device that is output from the input device that can carry the user's body is available, and the data obtained from the input device can be used. An information processing system for processing,
Based on the data output from the input device, center of gravity position acquisition means for repeatedly acquiring the center of gravity position in the load applied to the input device;
User direction calculation means for calculating a user direction to step on the input device using the center of gravity position;
An information processing system comprising processing means for performing predetermined processing based on the user direction. Data based on a load applied to the input device that is output from the input device that can carry the user's body is available, and at least one information that can process the data obtained from the input device An information processing method executed by cooperation between one processor or a plurality of processors included in an information processing system constituted by a processing device,
Based on the data output from the input device, a center-of-gravity position acquisition step of repeatedly acquiring the center-of-gravity position in the load applied to the input device;
A user direction calculating step of calculating a user direction to step on the input device using the barycentric position;
A processing step of performing a predetermined process based on the user direction.

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