JP2002052242A - Computer readable recording medium storing program of ball game type game and program, and device and method for processing ball game type game - Google Patents

Abstract

PROBLEM TO BE SOLVED: To express smoothly a continuous movement at the time when a player catches a ball in a ball game type game. SOLUTION: When a fielder 61 gets into a ball catching movement, the difference between the position Ea of a glove 62 when the fielder 61 catches a ball by a group of motions and the arrival position Eb of the ball is computed. In the ball catching motion of the fielder 61, the position of the glove 62 in a motion (A) based on the group of motions for ball catching is corrected in accordance with the difference between the position Ea and the arrival position Eb and a motion (B) in which the position of the glove 62 is corrected is displayed. In a motion after correction, when the fielder 61 catches a ball (frame 20), the position of the glove 62 of the fielder 61 agrees with the arrival position Eb of the ball.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer-readable recording medium and a program for controlling a player and a ball in a ball game, in which a program for the ball game is recorded, and a ball game processing apparatus and the like. About the method.

[0002]

2. Description of the Related Art Today, in sports games,
Many-to-many fighting games such as tennis, soccer, basketball, American football, and baseball are not limited to one-to-one fighting games.

In order to advance these sports-based games, an arcade machine or a dedicated game machine (PlayStation (manufactured by Sony Computer Entertainment Inc.), Dreamcast (manufactured by SEGA Enterprises Co., Ltd.), etc.) is required. It is necessary to perform operation input using a prepared operation unit (operation panel, keypad, etc.).

The operation unit is generally composed of a plurality of keys (or buttons) and a joystick. Whether it's a sports game or a role-playing game,
The operation system is formed with a limited number of buttons and joysticks on the operation unit. Of course, the game can be realized by a personal computer, and if a keyboard is used, keys required for game operations are assigned from keys on the keyboard.

[0005] In ball games such as baseball, soccer, and basketball in sports, it is common that the movement of the ball itself cannot be operated with buttons or joystick. Instead, it is possible for the user to indirectly control the direction and momentum of the next ball movement by manipulating the movement of the player holding the ball or the movement of the player with respect to the incoming ball. is there.

For example, in a baseball game, when a hit ball flies toward a shortstop in a situation where there is no runner, if the shortstop is within an action range where the shortstop can catch the ball, the shortstop can catch the hit ball. It is possible.
When causing a shortstop to catch a hit ball, the operation of the shortstop to catch the hit ball is displayed on the screen.

With the recent development of computer graphics technology, it has become possible to smoothly express the movement of a fielder in a three-dimensional virtual space. As this kind of related technology, there is, for example, International Publication WO98 / 43715. This publication discloses a technique for realizing a ball catching operation by combining several types of motions.

[0008]

Generally, in baseball, a glove is used to catch a ball. However, when the fielder's ball-catching action is reproduced by motion, a positional shift may occur between the fielder's glove and the ball during ball-catching. In the technique of International Publication WO98 / 43715, the ball catching operation is displayed if the displacement between the glove and the ball is within an allowable range.

[0009] However, if the fielder catches the ball while the position of the glove and the ball at the time of catching is shifted, an unnatural image is obtained. In particular, if even the fine movement of the fielder is realistically reproduced, the unnaturalness of the image due to the misalignment between the glove and the ball when catching the ball becomes noticeable.

Therefore, when trying to reproduce even a delicate movement of a fielder with a smooth motion, an unnatural expression portion due to a positional shift between the glove and the ball becomes more conspicuous as the motion becomes smoother. . For this reason, the balance in expression is deteriorated, and the user is rather uncomfortable.

In the above, the baseball game has been described in detail as an example. However, it is required that the body part of the player or the tool possessed by the player be exactly matched with the position of the ball. This is true for all games. Examples of ball games include soccer, basketball, tennis, American football, and ice hockey.

An object of the present invention is to provide a ball game
A computer-readable recording medium on which a ball game-based program is recorded, wherein when the player performs a ball catching motion by a motion, a portion of the player to be brought into contact with the ball and a position of the ball can be accurately matched; An object of the present invention is to provide a program, a ball game processing apparatus, and a method thereof.

[0013]

According to a first aspect of the present invention, there is provided a ball game for controlling a motion of a player catching a moving ball. A computer-readable recording medium recording a system game program, wherein the computer calculates a trajectory of a ball, and a motion group is previously associated with a player, and the motion group and the calculated motion group are calculated. From the trajectory, the time at which the player catches the ball is predicted on the time axis, and the positional relationship between the ball-catching attitude of the player and the calculated ball on the trajectory before and after the predicted time is estimated. Is calculated based on the calculated positional deviation, and a correction amount for the player's catching posture is calculated based on the motion group prepared in advance. If Te displaying said player,
And correcting the prepared motion group based on the calculated correction amount in at least a part of the period.

According to a second aspect of the present invention, there is provided a ball game-based program for realizing a ball game-based game for controlling an operation of a player catching a moving ball, wherein Is calculated, and a motion group is associated with the player in advance,
From the motion group and the calculated trajectory, a time point at which the player catches the ball is predicted on a time axis, and the player's catching attitude and the calculated trajectory are calculated before and after the predicted time point. Calculating a shift in the positional relationship with the upper ball, calculating a correction amount for the player's catching posture based on the calculated shift in the positional relationship, and controlling the player based on the motion group prepared in advance. In the case of displaying, the motion group prepared in advance is corrected based on the calculated correction amount in at least a part of the period.

[0015] According to a third aspect of the present invention, there is provided a ball game-based game processing apparatus for realizing a ball game-based game for controlling an operation of a player catching a moving ball. A computer-readable recording medium, a computer that reads and executes at least a part of the program from the recording medium, and a display that displays a ball game based on the program, the computer comprising: By reading at least a part of the program from the recording medium,
A trajectory of the ball is calculated, and a motion group is associated with the player in advance. From the motion group and the calculated trajectory, a time point at which the player catches the ball is predicted on a time axis. Calculating a positional deviation between the player's catching posture and the calculated ball on the trajectory before and after the predicted time, and based on the calculated positional relationship, the player's catching When calculating a correction amount for a posture and displaying the player on the display based on the group of motions prepared in advance, in at least a part of the period, the motion prepared in advance based on the calculated correction amount is used. Correcting the group.

According to a fourth aspect of the present invention, there is provided a ball game-based game processing method for realizing a ball game-based game for controlling an operation of a player catching a moving ball, wherein a trajectory of the ball is calculated. A motion group is associated with the player in advance, and a time point at which the player catches the ball is predicted on the time axis from the motion group and the calculated trajectory, and the predicted time point is calculated. Calculates a positional deviation between the player's catching posture and the calculated ball on the trajectory before and after, and calculates a correction amount for the player's ball-catching posture based on the calculated positional deviation. Then, when displaying the player based on the previously prepared motion group, in at least a part of the period, the previously prepared motion amount is calculated based on the calculated correction amount. Those characterized by comprising correcting the motion group.

[0017]

An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. In the following description,
A baseball game will be described as an example of the ball games.

First, the configuration will be described with reference to FIG. FIG. 1 shows a configuration example of a video game device according to an embodiment of the present invention. The video game device 10 shown in FIG. 1 has the function of a ball game processing device according to an embodiment of the present invention. The video game device 10 executes a program recorded on a computer-readable recording medium according to one embodiment of the present invention. The video game device 10 executes a program according to an embodiment of the present invention. The video game apparatus 10 is used for implementing a ball game processing method according to an embodiment of the present invention.

The video game apparatus 10 includes, for example, a game machine main body 11 for processing a video game according to a program, a keypad 50 for interactively operating the video game, and a television having a CRT or the like as a monitor with speakers. John Set (T
V set 100). The video game device 10 has a communication interface unit 21.
And is connected to the network 111 by the communication line 110 to perform data communication with other network devices.

The keypad 50 is used by a user (operator).
Are operable by a button group (buttons 50a, 50B, 50c, 50d).
) And a joystick 50e, and gives a command by a user's button operation or joystick operation to the game machine main body 11. Here, the button group and the joystick 50
d is a pitcher's pitching operation, a batter's swing operation, a runner's stealing operation,
It has a function for inputting a fielder's catching / throwing operation and the like.

The TV set 100 performs video (image) display and sound output according to the game content based on a video signal (video signal) and a sound signal output from the game machine main body 11.

The game machine main body 11 has an internal bus 25. The internal bus 25 includes a control unit 12 including units such as a CPU and a ROM, a RAM 13, and a hard disk drive (hereinafter, referred to as an HDD) 14.
Is connected.

The control unit 12 controls the entire apparatus,
The game processing is executed by storing part or all of the program in the AM 13.

The RAM 13 has a program area 13A, an image data area 13B, a work area 13C and the like. The program area 13A stores a game program. Specifically, the program area 13A has a CD-
The ROM drive 20 stores part or all of the game program read from the CD-ROM 19.
The image data area 13B stores image data such as a background and a game character required in the course of executing the program. The work area 13C stores various data generated during the program execution process. For example, work area 13
C stores model data of each character and a motion group for each character.

The game program and image data are
In addition to the CD-ROM 19, the data can be supplied from the HDD 14. In this case, the game program and image data are stored on the HDD.
14 may be stored. The HDD 14 may store game programs and image data by prior installation or download from the network 111 via the communication line 110.

The input interface 24, the sound processor 18, and the graphic processor 16 are connected to the internal bus 25. The keypad 50 is connected to the internal bus 25 via the input interface unit 24. The TV set 100 includes the sound processing unit 1
8, connected to the internal bus 25 via the graphic processing unit 16, respectively.

The graphic processing section 16 has a VRAM 17 having a frame buffer. The graphic processing unit 16 generates a video signal based on the image data stored in the frame buffer according to a command from the control unit 12 accompanying the program execution, and converts the video signal into a TV signal.
Output to set 100. Thereby, the TV set 10
A screen display based on the image data stored in the frame buffer is obtained on the display screen 101 of No. 0.

The sound processing unit 18 generates sound signals such as voice, BGM (background music), and sound effects according to a command from the control unit 12, and outputs the sound signals to the TV set 100.

Further, the internal bus 25 has a CD-ROM
The drive 20 and the memory card reader / writer 23 are connected. The CD-ROM drive 20 reads game programming, image data, sound data, and the like stored in a CD-ROM 19 that is a recording medium. The memory card reader / writer 23 writes and reads data to and from the memory card 22 under the control of the control unit 12. The data written to the memory card 22 includes data indicating the progress of the game, data indicating the environment setting of the game, and the like.

Next, the relationship between the state transition of the player and the user operation according to the present embodiment will be described. FIG.
(A) And (B) is a figure explaining the example of correction | amendment of the attitude | position of the player in the motion to ball catching by this Embodiment.

First, an example of the operation up to catching a ball will be described. FIG. 2A shows an example of a state transition of a motion up to a catching ball associated with a player. FIG.
(B) shows a state transition example of the motion after the posture is corrected. FIGS. 2A and 2B show the attitude of the player 61 for each frame from the start of the ball-catching motion to the ball-catching and the positions Ec, Ed, and Ee of the balls. Also, in the present embodiment, the trajectory of the moving ball is calculated, and the time at which the player catches the ball on the time axis is determined from the calculated trajectory and the motion associated with the fielder (player). is expected. And the predicted time (or before and after the predicted time)
The deviation between the position Ea of the glove (fielder's catching part) in the catching posture in the motion before the correction of the ball and the arrival position Eb of the ball is calculated. In the present embodiment,
For example, the displacement in the height direction is calculated. Glove position E in catching posture in motion before ball correction
The height difference between “a” and the arrival position Eb of the ball is ΔE.

Here, the correction amount of the height of the glove is calculated. The correction amount for each frame can be calculated, for example, by the following equation. [Equation 1] Correction amount = (height of arrival position of ball−height of glove at the time of catching playback motion group) × (number of frames from start of playback motion to current time / from capture motion start to catching ball) Number of frames)

The height of the glove in each frame is obtained by adding the correction amount obtained here to the position of the glove in the current frame.

Before the fielder 61 starts the ball catching operation, FIG.
As shown in (A), the fielder 61 is in a standby posture for catching a ball with the glove 62 put on the hand. When the batter hits the ball, the future position of the ball is determined. Then, when it is determined that the fielder can reach the future position of the ball first by the motion group associated with the fielder 61, the fielder 61 by the motion group is determined.
Operation is started. In the examples of FIGS. 2A and 2B, the number of frames from the start of the ball catching operation to the ball catching is 20 frames.

As shown in FIGS. 2A and 2B, when the position Ec of the ball approaches the fielder 61 and the ball can be caught, the fielder 6 is set.
Ball catching operation 1 starts. Then, in the frame 1, the position of the glove 62 of the player 61 due to the motion group is corrected upward by + 1/20 × ΔE in the screen. Then, the player 61 having moved the glove 62 to the corrected position is displayed on the screen.

In the next frame 2, the position of the glove 62 of the player 61 by the motion group is + 2/20 × Δ
Only E is corrected upward in the screen. Then, the player 61 who has moved the glove to the corrected position is displayed on the screen. At this time, the ball is at the position Ed. Since then
The ball approaches the reaching position Eb for each frame.

Similarly, the position of the glove is corrected for each frame. Then, in the frame 19, the position of the glove 62 of the player 61 by the motion group is + 19 /
The correction is performed in the upward direction in the screen by 20 × ΔE. Then, the player 61 having moved the glove 62 to the corrected position is displayed on the screen. The position of the ball at this time is the position Ee.

In the frame 20, the position of the glove 62 of the player 61 by the motion group is corrected upward by + ΔE in the screen. That is, the position of the glove 62 is corrected to the arrival position Eb of the ball. Then, the player 6 who moved the glove to the arrival position Eb of the ball
1 is displayed on the screen. At this time, the ball also reaches the position Eb
Has been reached. Thereby, the position of the ball and the glove 62 can be accurately matched.

As shown in the frame 20 of FIGS. 2A and 2B, the glove 6
Reference numeral 2 denotes a position Ea near the ground. However, the height of the ball reaching position Eb from the ground is higher than the position Ea. In such a case, by correcting the position of the glove 62 for each frame, a smooth ball-catching operation without a sense of incongruity can be displayed on the screen.

FIG. 3 shows an example of transition of the glove position before and after the correction. In the figure, the vertical axis shows the transition of the height of the globe from the ground, and the horizontal axis shows the moving distance of the position of the globe in the horizontal direction. In the example of FIG. 3, the position E0 of the glove in the catching posture by the motion before the correction from the position E0 of the glove in the start frame.
The positions E11, E12, and E13 of the frames 5, 10, and 15 up to a are shown.
Also, the corrected glove positions E21, E22, E23 of the frames 5, 10, and 15 are shown.

As shown in FIG. 3, the correction amount of the position of the glove in the frame 5 is 5 × ΔE / 20. The correction amount of the position of the glove in the frame 10 is 10 × Δ
E / 20. The correction amount of the position of the glove in the frame 15 is 15 × ΔE / 20. Then, in the frame 20, the glove position is corrected by ΔE.

As can be seen from FIG. 3, by increasing the correction amount of the glove position for each frame, the corrected glove position can be smoothly shifted. As a result, the motion of the player after correcting the glove position also becomes a smooth motion.

Next, a method of correcting the attitude of the player after the corrected glove position is determined will be described. In the present embodiment, for example, the skeleton of the player is represented by a skeleton. A skeleton is formed by connecting a plurality of arcs according to a human skeleton. The arc indicates the bone of the player. In the skeleton, the connection relationship between arcs and the length of each arc are defined. In the motion group, the attitude of the player is defined by defining the angle between the arcs connected to each other for each frame.

In the present embodiment, for example, when the corrected glove position is determined, the angles of the joints (shoulders and elbows) of the player's arm are corrected by inverse kinematics (inverse kinematics method). be able to. Hereinafter, an example of a method of correcting the posture of the player will be described.

FIGS. 4A, 4B, and 4C are diagrams showing an example of the angle correction method according to the present embodiment. FIG.
FIG. 4A shows the state of the arm before angle correction, and FIG.
FIG. 4B shows a state in which the angle of the elbow is corrected, and FIG.
(C) shows a state where the angle between the elbow and the shoulder is corrected. In the figure, vectors a1 and a2 are vectors indicating the arc of the upper arm (vector from the position of the base of the arm to the position of the elbow). The vectors b1, b2, and b3 are vectors indicating the arc of the forearm (vector from the position of the elbow to the position of the wrist). Further, a vector from the position of the base of the arm to the position E of the glove after correction is defined as a vector c.

Vector a1 and vector b1 before angle correction
(The angle of the elbow joint) is θ1. Further, the elbow joint can rotate only around a predetermined M axis. In addition,
The M axis is defined by a position and an angle relative to the vector a1.

Next, an example of a calculation method for correcting the arm of the fielder will be described. In addition, the following equations 2, 3,
In Expressions 4 and 5, “x” indicates a cross product of vectors. In the following equation, “•” indicates an inner product of vectors. Further, the multiplication is indicated by “*” in order to distinguish it from the outer product of the vectors.

First, the elbow angle is corrected. To do that,
As shown in FIG. 4B, the vector b1 is rotated and changed to the vector b2. At this time, the vector d obtained by adding the vector a1 and the vector b2 has the same length as the vector c. In this case, the corrected angle θ2 of the elbow joint can be obtained, for example, as follows. First, cos (θ2) is calculated by the cosine theorem as follows: [Expression 2] cos (θ2) = (| vector a1 | ² + |
1 | ² − | vector c | ² ) / (2 * | vector a1 | *
| Vector b1 |). If cos (θ2) is obtained, the angle θ2 can be calculated by the inverse function of cosine (arc cosine). Since it is specified that the elbow joint can be rotated only around the local M axis, the vector b1 is rotated around the M axis so that the angle of the elbow joint obtained by this calculation becomes θ2.
What is necessary is just to rotate it counterclockwise in the figure. The vector after rotating the vector b1 is the vector b2.

After updating the angle of the elbow joint so that it becomes the angle θ2, the vector d from the base of the arm to the wrist is calculated by the following equation. [Equation 3] Vector d = Vector a1 + Vector b2 Note that “+” in Equation 3 indicates addition of vectors.

Further, a vector e perpendicular to the vector d and the vector c is obtained by the following equation. [Equation 4] Vector e = vector d × vector c / (| vector d
× vector c |) The vector e is a unit vector. An axis that passes through the shoulder joint (the position of the base of the arm) and is parallel to the vector e is a rotation axis for matching the vector d with the vector c.

Further, when the rotation angle is Δφ, co
s (Δφ) is obtained from the following equation [Equation 5] cos (Δφ) = vector d · vector c / (| vector d | * | vector c |). If cos (Δφ) is obtained, the angle Δφ can be calculated by the inverse function of cosine (arc cosine).

Then, as shown in FIG. 4C, an axis passing through the shoulder joint and parallel to the vector e is set as a rotation axis, and the angle Δφ
Only by rotating the arm counterclockwise in the figure, the angle of the arm at the shoulder joint is corrected. In FIG. 4C, a vector indicating the upper arm after correction is a vector a2, and a vector indicating the forearm after correction is a vector b3. In this manner, the position of the baseball glove (following the position of the wrist) worn by the fielder in the hand is corrected.

Note that such correction processing can also be obtained by quaternion. By using the quaternion, it is possible to obtain a natural movement path from the position before the correction of the glove to the position after the correction.

Next, an example of data management relating to a motion group will be described with reference to FIGS. FIG.
FIG. 6 is a diagram illustrating a relationship between a motion group and data for selecting the motion group in the present embodiment. The data set in FIG. 5 and FIG.
For example, it is read from the CD-ROM 19 and
Is stored in the work area 13C.

FIGS. 5 and 6 show motion information relating to catching and throwing, which is set for each fielder. As the motion information on the ball catching, a plurality of types of motion groups are assigned for each direction toward the fielder's ball catching. Each motion group is associated with the number of frames, the movement amount per frame, the catching range, the height of the glove at the time of catching, the range of height that can be catched, the throwing direction, and the throwable distance. ing.

The number of frames indicates the number of frames used to transition a series of motions. Specifically, the number of frames refers to the number of frames required for the fielder to catch the ball from the ball catching position. The movement amount per frame refers to the distance that the fielder can move per frame. The catching range indicates a distance that the fielder can catch the ball with the position of the fielder as a base point. The height of the glove at the time of catching the ball indicates the height at which the glove is located with respect to the baseball ground. The range of heights at which a ball can be catched refers to a height at which a fielder can catch a ball with respect to a baseball ground. The throwing direction refers to the direction of the throwing destination based on the direction of the fielder when the fielder throws the ball. The throwable distance indicates the maximum distance from the fielder to the destination.

Further, each data will be described in detail. In the "direction" column, data indicating a 360-degree direction about the position of the fielder, such as A, B, C, D,..., Are set. In FIG. 5, for example, the direction A may be the front of the fielder, the direction B may be the left of the fielder, the direction C may be the rear of the fielder, and the direction D may be the right of the fielder.

The "motion group" column stores a motion group (motion data defining a motion) associated with a fielder. In FIG. 5, each motion group is indicated by a number (#) for identifying the motion group. Each motion group is set in association with each movement direction of the fielder. As shown in FIG.
A plurality of motion groups are associated with each moving direction.

In the present embodiment, in the direction A, for example, motion groups # 11, # 12, # 13, # 14, #
.. Are associated with each other. In the direction B, for example, motion groups # 21, # 22, # 23, # 24,.
Are associated with each other. In the direction C, for example, motion groups # 31, # 32, # 33, # 34,... Are associated. For example, the motion group # 41, # 42, # 43, # 44,..., #M (M is a natural number) is associated with the direction D.

In the "number of frames" column, the number of frames required from the start of the ball catching operation to the ball catching in the series of motions is set in association with the motion group.

In the present embodiment, each motion group # 1
1, # 12, # 13, # 14, # 21, # 22, # 2
3, # 31, # 32, # 33, # 41, # 42, # 43
Is set to, for example, "20". Also, each motion group # 15, # 24, # 34, #
44,..., #M are, for example, “1”.
The number of frames of the motion group is set to the number of frames suitable for displaying the fielder's catching motion by the motion group in a real and smooth manner with the optimal state transition. .

In the column of “movement amount per frame”,
The distance that the fielder can move per frame in the motion group is set in association with the motion group. The movement amount per frame corresponds to the movement distance of the position of the fielder operating in the motion group every time the displayed frame image is updated.

The moving distance is set in meters (m) on the assumption that the baseball stadium defined in the virtual space has the same size as the full-sized baseball stadium. Is done. The same applies to the units of the distance, the movement amount, and the height. The value set in the column of the amount of movement per frame is, for example, a positive real number.

In the present embodiment, each motion group # 1
The movement amount per frame corresponding to 1, # 12, # 13, # 14, and # 15 is set to, for example, 0.30 m. Each motion group # 21, # 22, # 23, # 2
The movement amount per frame corresponding to 4, # 41, # 42, # 43, # 44, and #M is set to, for example, 0.20 m. Each motion group # 31, # 32, # 33,
The movement amount per frame corresponding to # 34 is set to, for example, 0.15 m.

In the "ball catching range" column, a range in which the motion group can catch a ball is set in association with the motion group. The catching range is a movement range that can express the movement of the fielder in a real and smooth manner with the motion group,
The distance is shown based on the position of the fielder. In FIG. 5, L1, L2, L3, L4, L5, and L6 indicate distances that can be moved from the base point with the position of the fielder as the base point. The values set in L1 to L6 are, for example, all positive real numbers.

In the present embodiment, each motion group # 1
The catching ranges corresponding to 1, # 12, # 13, and # 14 are, for example, L1 to L2 (a distance L1 from the position of the fielder,
(Range of distance L2 or less). The catching range corresponding to the motion group # 15 is, for example, L1 or less (a range of distance L1 or less from the position of the fielder).

Each of the motion groups # 21, # 22, # 23,
The catching ranges corresponding to # 41, # 42, and # 43 are, for example, L3 to L4 (ranges from the position of the fielder more than distance L3 and less than or equal to distance L4). Each motion group # 24, # 4
4. The catching range corresponding to #M is, for example, L3 or less (a range of distance L3 or less from the position of the fielder).

Each motion group “# 31”, “# 32”,
The catching range corresponding to “# 33” is, for example, L5 to L6.
(Range from the fielder more than distance L5 and less than or equal to distance L6). The catching range corresponding to the motion group “# 34” is
For example, it is L5 or less (a range of distance L5 or less from the fielder).

In the column of "height of glove when catching ball", the height of the glove when the fielder catches a ball in the motion group is set in association with the motion group. The value set here is, for example, a positive real number.

In this embodiment, each motion group # 1
1, # 15, # 21, # 24, # 31, # 34, # 4
The height of the glove at the time of catching the ball corresponding to 1, # 44 is, for example, H1. Each motion group # 12, # 22, # 3
2. The height of the glove at the time of catching the ball corresponding to # 42 is, for example, H2. Each motion group # 13, # 23, # 3
3, the height of the glove at the time of catching the ball corresponding to # 43 is, for example, H3. The height of the glove at the time of catching the ball corresponding to each of the motion groups # 14 and #M is, for example, H4.

In the field of “range of height that can be captured by catching”, a range of height in which a fielder can catch a ball by the motion group is set in association with the motion group. The range of the catchable height is set according to the height of the glove at the time of catching the ball with reference to the ground surface. The value set here is, for example, a positive real number.

In the present embodiment, for a motion group in which the height of the glove at the time of catching the ball is "H1", for example, a range of height 0 or more and less than h1 (0 (m) to h1) is set. You. For a motion group in which the height of the glove at the time of catching the ball is “H2”, for example, the height h1 or more and less than h2 (h1
The range of h2) is set. For a motion group in which the height of the glove at the time of catching the ball is “H3”, for example, the height h
A range from 2 to less than h3 (h2 to h3) is set. For a motion group in which the height of the glove at the time of catching the ball is “H4”, for example, the height is not less than h3 and less than h4 (h3 to h4).
Is set. Each value of h1, h2, h3, and h4 is a positive real number.

Thus, the motion group in each of the directions A, B, C, D,... Is set for each glove height at the time of catching a ball. The height of the glove refers to the height from the baseball ground surface in the catching posture to the glove from that surface, and is, for example, H1 (0.05 m), H2 (0.5).
8m), H3 (1.10m), and H4 (1.98m). The height range in which the ball can be caught is determined according to the height of the glove at the time of catching the ball.

For example, according to the following equations 1, 2, 3,
A value h1 indicating a boundary value between two “capturable height ranges”,
h2 and h3 are calculated respectively. [Equation 6] h1 = (H1 + H2) / 2 [Equation 7] h2 = (H2 + H3) / 2 [Equation 8] h3 = (H3 + H4) / 2

Further, regarding the “height range that can catch a ball”,
For example, the maximum value is “h4”. According to this,
The “height range that can be catched” is, for example, 0 (m) to h.
1, h1 to h2 and h3 to h4 are set.

Subsequently, as shown in FIG. 6, the throwing direction of the motion group is set in the column of "throwing direction" in association with the motion group. In the example of FIG. 6, the throwing direction is predetermined in a 360-degree direction, for example, forward, rightward, leftward, or backward.

The motion group in which the throwing direction is “forward” is, for example, a motion group in which an infielder throws a ball toward a catcher on a home base. The motion group in which the throwing direction is “right” is, for example, when a shortstop is 3
This is a group of motions to throw the ball toward the third baseman who covers the base. The motion group in which the throwing direction is “left” is, for example, a motion group in which the second baseball throws toward the first baseman covering the first base. The motion group in which the throwing direction is “back” is, for example, a motion group in which the pitcher throws a ball toward a second baseman covering a second base or a shortstop.

In the field of "a throwable distance", the maximum distance that a ball can fly when a ball is thrown by a motion of a fielder according to the motion group is set. In FIG. 6, D1 and D2 respectively indicate the flight distances when the ball is thrown with reference to the position of the fielder. Here, the distance is set to be larger in D2 than in D1.
The values taken by D1 and D2 are positive real numbers.

In the example of FIG. 6, each of the motion groups # 11, # 11
12, # 13, # 14, # 21, # 22, # 23, # 2
4, # 31, # 32, # 33, # 34, # 41, # 4
The throwable distances corresponding to 2, # 43, and # 44 are, for example, "D1 to D2" (distances greater than D1 and less than or equal to distance D2). The throwable distance corresponding to the motion groups # 15 and #M is “0 (m) to D1” (distance less than the distance D1).
It is.

The motion group in which the throwable distance is "D1 to D2" is, for example, a motion group in which the ball is thrown with a good throw. In addition, the catchable distance is "0 (m) to D1".
Is a motion group for throwing a ball by throwing the ball down, for example.

The baseball game proceeds with reference to the data shown in FIGS. That is, when the ball is moved in the baseball game, the number of frames is obtained from the data corresponding to the above-described motion group.
Then, the position of the ball at the time when the display is shifted by the acquired number of frames from the display position of the ball is predicted and obtained.

Further, from the number of frames corresponding to the motion group and the movement amount of the fielder per frame, the distance over which the fielder can be moved by the motion group is calculated. Based on the calculated distance, a ball catching determination as to whether or not the fielder can reach the ball position obtained by prediction is sequentially performed for each motion group.

When a certain motion group is used,
If the fielder can reach the future ball position, it is determined that the fielder can catch the ball in the group of motions. When it is determined that catching is possible, a series of motions represented by the group of motions transition on the display screen. Note that in order to predict the ball position at the time when the screen display has been advanced by the number of frames, calculation based on the moving direction and speed of the ball is required.

In the present embodiment, the configuration of the motion group, that is, the motion data is not particularly limited. That is, a series of motions from the ball-catching position to the ball-throwing operation may be set as one motion group, or a series of motions from the ball-catching position to the ball-catching operation and a series of motions from the ball-catching state to the ball-throwing state. A series of motions may be provided as an independent motion group, and the data may be configured so that they can be linked at any time. Further, the present invention is not limited to the above configuration.

In addition, depending on the memory capacity, 36
Although it is possible to provide a motion group in all 0-degree directions, the movement direction may be limited, for example, in four directions of front, rear, left, and right. In this case, the moving direction of the fielder is forward (for example, 0 degrees), rightward (for example, 90 degrees clockwise), backward (for example, 180 degrees clockwise), leftward with respect to the position of the fielder. (For example, 270 degrees clockwise), the direction of the fielder may be finely adjusted (rotated) in the closest direction. Of course, the moving direction is not limited to four directions, and may be, for example, eight directions.
The number of directions can be variously changed depending on conditions such as the amount of memory used and the expressive power of the game.

Next, the operation according to the present embodiment will be described. FIGS. 7 and 8 are flowcharts illustrating the operation according to the embodiment of the present invention. The flowcharts shown in FIG. 7 and FIG. 8 are for explaining an operation example of the catcher when the batter hits back the pitcher.

First, a fielder (candidate) who can catch a ball is determined in accordance with the direction of the ball hit by the batter (step S1). For example, from 20 degrees to 30
One or more fielders located within the degree range are ball catching candidates.

Next, the trajectory of the ball is calculated based on the traveling direction of the ball, the moving speed, and the like, and the current position of the ball on the trajectory is updated (step S2). Such a process of updating the position of the ball is performed for each frame.
In calculating the trajectory of the ball, a calculation may be performed in consideration of the direction of rotation of the hit ball, the direction of the wind, and the like.

Further, the fielder is moved according to the operation input or the result of the arithmetic processing (step S3). For example, a fielder who moves in response to a user's operation input is a fielder located closest to the ball. Other fielders except the fielder who moves in response to the user's operation input, for example,
It is moved by arithmetic processing by a computer. In the arithmetic processing by the computer, for example, a fielder near each base is moved so as to cover the base.

Next, the catching range of the motion group associated with each candidate and the future position of the ball are obtained (step S4). For example, the number of frames from the start of operation of each motion group associated with each candidate to catching a ball is acquired. Then, the position of the future ball is acquired for the acquired number of frames.

Next, it is determined whether or not there is a candidate having a group of motions that can be reached earlier than the ball (candidates who can catch the ball) at the future position of the ball (step S).
5). This is determined based on the positional relationship between the ball catching range of the motion group associated with each candidate and the future position of the ball. That is, if the future position of the ball is included in the catching range based on the current position of each candidate, it is determined that the candidate can catch the ball.

If no catchable candidate is found (step S5: NO route), the process proceeds to step S5.
Then, the process from step S2 to step S5 is repeated. While the processing from step S2 to step S5 is repeated, the position of the ball and the position of the fielder are updated for each frame.

If a ball-catching candidate is found (step S5: YES route), a ball-catching candidate is determined as a ball-catcher, and the ball-catcher moves to a future position of the ball. Is determined as a playback motion group (step S6).

Proceeding to FIG. 8, the catching position is determined based on the number of frames up to catching the playback motion group (step S7). For example, if the number of frames of the playback motion group up to catching the ball is 20, the reaching position of the ball after 20 frames is the catching position. Further, the height of the glove at the time of catching the ball in the reproduction motion group is acquired (step S8).

The posture of the catcher is obtained based on the reproduced motion group (step S9). In the playback motion group, the relative angle at the connection between the skeletons for each frame is defined, and by applying the angle to the skeleton of the fielder, the attitude of the fielder can be acquired.

A correction amount of the height of the fielder's glove is calculated according to the difference between the height of the ball from the ground at the ball catching position and the height of the glove at the time of catching in the replay motion group (step S10). . The correction amount can be calculated by, for example, the above-described equation (1). The attitude of the fielder is corrected based on the correction amount of the height of the fielder's glove, and is displayed on the screen (step S11). The fielder's posture can be corrected by correcting the angle of the gloved arm at the shoulder and elbow.

After the screen is displayed, it is determined whether or not the reproduction of the motion by the reproduction motion group has ended (step S12). Whether or not the motion reproduction has ended is determined based on whether or not the last frame display of the reproduction motion group has ended. If the motion has not been reproduced (step S12: NO route), the process proceeds to step S8, and the attitude of the fielder in the next frame is displayed on the screen. If the reproduction of the motion has ended (step S12: YES route), the processing ends.

As described above, according to the present embodiment, a series of motions including a ball catching operation is prepared,
The motion of the fielder can be displayed by using the motion of accurately inserting the glove to the arrival position (ball catching position) of the ball. As a result, even when the movement of the fielder is realistically represented, no displacement occurs between the ball and the glove of the fielder, and the continuous movement of the fielder can be represented realistically and smoothly.

In the above-described embodiment, all the postures of the motion group previously associated with the fielder (player) from the start of the motion to catching the ball are corrected, but all the postures are necessarily corrected. No need. For example, the player's posture may be corrected from a frame preceding by a predetermined number of frames by calculating backward from the frame having the catching posture. Further, the number of frames for correcting the player's posture may be determined according to the amount of deviation between the ball's arrival position and the glove (ball-catching part) in the ball-catching posture due to the motion group.

Further, in the above embodiment, the correction of the motion up to the catching of the ball has been described, but the motion after catching the ball can be similarly corrected. For example, by correcting the position of the glove in the motion that shifts from catching to throwing, or the position of the hand holding the ball, the glove position can be smoothly shifted to the throwing operation from the corrected catching posture it can.

In the above embodiment, the height of the globe from the ground is corrected.
The position of the glove may be corrected forward, backward, left and right.

Further, in the above embodiment, the correction amount of the ball catching part (the position of the glove) is sequentially obtained for each frame of the motion at the time of ball catching, but the correction amount of the ball catching part in each frame is obtained. Can be obtained in advance at the start of the motion. That is, at the start of the motion, the ball catching position is determined by the trajectory of the ball and the motion of the ball catching. Therefore, it is possible to obtain in advance the correction amount in each frame for smoothly moving the ball catching part to the ball catching position. Even if the correction amount in each frame is obtained in advance, the same catching motion as in the above embodiment can be reproduced.

In the above-described embodiment, a baseball game has been described as an example of a ball game. However, the present invention is not limited to this. Application to basketball, American football, tennis, ice hockey, etc. is also possible.

The present invention can be applied to any of a dedicated game machine, an arcade machine, a personal computer, a portable information terminal, a portable telephone, and the like.

Further, in the above-described embodiment, a program for realizing an embodiment of the present invention is stored in a CD-RO.
M is recorded on the hard disk, but the present invention is not limited to this, and may be recorded on a computer-readable recording medium such as an MO or DVD. When the program is downloaded to a hard disk, a commercial network, the Internet, an intranet, an extranet, or the like may be used as the network 111.

[0106]

As described above, according to the present invention, when a player catches a ball in a ball game, the player's position until the player catches the ball is determined according to the future position of the ball. By correcting the posture, it is possible to smoothly catch the ball in a continuous operation, a computer-readable recording medium and a program recording a program of a ball game, and
There is an effect that a ball game processing apparatus and a method thereof can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a device configuration according to an embodiment of the present invention.

FIG. 2A is a diagram illustrating an example of a motion before correction according to an embodiment of the present invention, and FIG. 2B is an example of a motion example after correction according to an embodiment of the present invention. FIG.

FIG. 3 is a diagram showing a transition example of the position of the glove according to the embodiment of the present invention.

FIG. 4A is a diagram showing an example of a state of an arm before angle correction according to an embodiment of the present invention, and FIG. 4B is a state in which an elbow angle is corrected according to one embodiment of the present invention; FIG. 4C is a diagram showing an example of a state in which the angle between the elbow and the shoulder is corrected according to the embodiment of the present invention.

FIG. 5 is a diagram schematically illustrating an example of one motion management according to an embodiment of the present invention.

FIG. 6 is a diagram schematically illustrating an example of one motion management according to an embodiment of the present invention.

FIG. 7 is a flowchart illustrating an operation example according to an embodiment of the present invention.

FIG. 8 is a flowchart illustrating an operation example according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Video game device 11 Main body of game machine 12 Control part 13 RAM 14 Hard disk drive 16 Graphic processing part 19 CD-ROM 20 CD-ROM drive 50 Keypad 50a, 50b, 50c, 50d button 50e Joystick 100 TV set

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2C001 AA00 AA05 BA00 BA01 BA02 BA05 BA06 BB06 BC00 BC05 BC10 CA06 CB01 CC02 CC08 5B050 AA08 BA08 BA09 EA13 EA24 FA02

Claims (16)

[Claims] 1. A computer-readable recording medium for recording a ball game-based program for realizing a ball game-based game for controlling the movement of a player catching a moving ball, wherein the computer has a ball trajectory A motion group is associated with the player in advance, and a time point at which the player catches the ball is predicted on the time axis from the motion group and the calculated trajectory. Calculating a shift in the positional relationship between the player's catching posture and the calculated ball on the trajectory before and after the corrected time, and correcting the player's catching posture based on the calculated shift in the positional relationship. When calculating the amount and displaying the player based on the previously prepared motion group, at least in part of the period,
Correcting the motion group prepared in advance based on the calculated correction amount. 2. The recording medium according to claim 1, wherein in the correction of the motion group, the correction is performed for all of the prepared motion groups. 3. The recording according to claim 1, wherein the correction amount of the ball-catching posture of the player is obtained from a deviation of a positional relationship between the ball-catching portion of the player and the calculated ball on the trajectory. Medium. 4. The recording medium according to claim 3, wherein the player indicates an operation by a joint movement, and the motion group correction corrects the joint movement of the player. 5. A ball game-based program for realizing a ball game based on controlling the movement of a player catching a moving ball, comprising: calculating a trajectory of the ball by the computer; A motion group is associated with the motion group and the calculated trajectory, and predicts, on a time axis, a point in time at which the player catches the ball. Calculating a deviation of the positional relationship between the ball-catching posture and the calculated ball on the trajectory; calculating a correction amount for the ball-catching posture of the player based on the calculated positional relationship deviation; When the player is displayed based on the group of motions, at least in part of the period,
Correcting the prepared motion group based on the calculated correction amount. 6. The program according to claim 5, wherein, in the correction of the motion group, the correction is performed on all of the prepared motion groups. 7. The non-transitory computer-readable storage medium according to claim 5, wherein the correction amount of the ball-catching posture of the player is obtained from a deviation of a positional relationship between a ball-catching portion of the player and the calculated ball on the trajectory. . 8. The non-transitory computer-readable storage medium according to claim 7, wherein the motion of the player is indicated by a motion of a joint, and the motion group is corrected by correcting a motion of the joint of the player. 9. A ball game processing apparatus, comprising: a computer-readable recording medium storing a ball game game program for realizing a ball game that controls an operation of a player catching a moving ball; A computer that reads and executes at least a part of the program from the recording medium; and a display that displays a ball game based on the program, wherein the computer reads at least a part of the program from the recording medium. By calculating the trajectory of the ball, a motion group is associated with the player in advance, and the time at which the player catches the ball on the time axis from the motion group and the calculated trajectory The ball-catching attitude of the player and the calculation before and after the predicted point in time Calculating a shift in the positional relationship with the ball on the trajectory calculated, calculating a correction amount for the catching posture of the player based on the calculated shift in the positional relationship, based on the group of motions prepared in advance. When the player is displayed on the display, the motion group prepared in advance is corrected based on the calculated correction amount in at least a part of the period. 10. The ball game processing apparatus according to claim 9, wherein, in the correction of the motion group, the correction is performed for all of the prepared motion groups. 11. The correction amount of the player's catching posture is:
The ball game type game processing apparatus according to claim 9, wherein the ball game-based game processing apparatus is obtained from a deviation of a positional relationship between a ball catching part of the player and the calculated ball on the trajectory. 12. The ball game processing apparatus according to claim 11, wherein the player shows a motion by a joint movement, and the motion group correction corrects the joint movement of the player. 13. A ball game processing method for realizing a ball game in which the movement of a player catching a moving ball is controlled, wherein a trajectory of the ball is calculated, and a motion group is associated with the player in advance. The motion group and the calculated trajectory are used to predict, on a time axis, a point in time at which the player catches the ball. Calculating a shift in the positional relationship with the calculated ball on the trajectory; calculating a correction amount for the ball-catching attitude of the player based on the calculated shift in the positional relationship; When the player is displayed in at least a part of the period,
Correcting the motion group prepared in advance based on the calculated correction amount. 14. The ball-based game processing method according to claim 13, wherein in the motion group correction, correction is performed for all of the previously prepared motion groups. 15. The correction amount of the ball-catching posture of the player,
14. The ball game-based game processing method according to claim 13, wherein the ball game-based game processing method is obtained from a deviation of a positional relationship between a ball catching part of the player and the calculated ball on the trajectory. 16. The ball game-based game processing method according to claim 15, wherein the player shows an action by a joint movement, and the motion group correction corrects the joint movement of the player.