JP5135366B2 - GAME DEVICE, GAME CONTROL PROGRAM, AND GAME CONTROL METHOD - Google Patents

Description

  The present invention relates to a technique for controlling the progress of a baseball game in which a batter character hits a ball object thrown by a pitcher character.

  Conventionally, a baseball game is known in which a ball cursor thrown by a pitcher character is aligned so that the meat cursor overlaps, and in that state, the batter character swings the bat and hits the ball object (for example, Patent Documents). 1).

  In such a baseball game, the player must: 1. Controller operation to align the meat cursor with the ball object that is on the strike zone; A controller operation for predicting the impact timing and inputting an impact command is required. Here, 1. The operation of aligning the meat cursor must be performed within a short time until the ball object released from the pitcher character arrives, and requires a certain amount of skill, which is difficult for beginners.

  Therefore, conventionally, a function called “lock-on” is provided for beginners in baseball games. This lock-on function is: This is a function for assisting the game device in positioning the meat cursor. Specifically, the game device automatically corrects the moving speed of the meet cursor and the moving direction designated by the player so that the meet cursor is quickly positioned on the ball object.

  Using this function, players can concentrate their attention on the timing of hitting command input without much attention to the position of the meet cursor, and even beginners can enjoy the game sufficiently. Is possible.

  Note that in the conventional lock-on function, a plurality of auxiliary levels (for example, five levels) are provided from a light auxiliary level to a strong auxiliary level, and the player can arbitrarily select according to his / her level.

JP 2007-222398 A

  However, in the conventional baseball game, since the player selects and sets the lock-on function based on his / her own judgment, there is a case where there is a degree of freedom, but as a result, the game cannot be fully enjoyed.

  For example, even if the player thinks that he / she does not need much assistance with the lock-on function (his skill is high) and sets the assistance level of the lock-on function low, the skill of the player is actually not so high, Game difficulty may increase. On the other hand, if the player thinks his skill is low and sets the assist level of the lock-on function high, the assist may be too strong, and the game may be easier than expected.

  In order for a player to be able to set an appropriate auxiliary level, it is necessary for the player to play a game for a long time or to get used to the game while changing the auxiliary level in various ways. Whether or not the relationship can be grasped depends on the player's sense, and it is difficult for beginners of the game to make appropriate settings. And since a beginner cannot fully enjoy the game without obtaining appropriate assistance, there is a risk of losing interest in the game.

  An object of the present invention is a baseball game having an assist function for a player's controller operation, in which the assist level of the assist function is automatically set to be an appropriate level for the player by judging the skill of the player. It is to realize a game.

  (1) A game device according to one aspect of the present invention is a game device that executes a baseball game in which a batter character strikes a ball object thrown by a pitcher character, and determines a position at which the batter character strikes the ball object. In order to move and display the meet cursor for movement on the display screen of the display device, the batter character is obtained based on the movement command acquisition means for acquiring the movement command input by the player and the batting command input by the player. When the hit timing determination means for determining the hit timing for hitting the ball object and the meet cursor movement assist mode for making the meet cursor auxiliary to the ball object are set, the meet cursor movement assist mode is Compared to the case where it is not set, Based on the movement speed auxiliary means for correcting the movement speed of the meat cursor, the movement speed corrected by the cursor movement speed auxiliary means, and the movement command so that the meat cursor approaches the ball object earlier. Cursor movement display means for moving and displaying the meet cursor on a display screen; Level setting means for setting a skill level indicating a skill of the player based on a history of the distance between the ball object and the meet cursor at the hitting timing; The cursor movement speed auxiliary means sets the movement speed of the meet cursor to be higher as the skill level is lower.

  A game control program according to another aspect of the present invention is a game control program for causing a computer to execute a baseball game in which a batter character hits a ball object thrown by a pitcher character. Based on the movement command acquisition means for acquiring a movement command input by the player and the hitting command input by the player in order to move and display the meet cursor for determining the hitting position on the display screen of the display device. When the hit timing determining means for determining the hit timing at which the batter character hits the ball object and the meet cursor movement assist mode for making the meet cursor auxiliary to the ball object are set, the meet Cursor movement supplement Compared to the case where no mode is set, the cursor movement speed auxiliary means for correcting the movement speed of the meet cursor is corrected by the cursor movement speed auxiliary means so that the meat cursor approaches the ball object earlier. Based on the movement speed and the movement command, the cursor movement display means for moving and displaying the meat cursor on the display screen, and the skill of the player based on the history of the distance between the ball object and the meat cursor at the hitting timing The computer functions as level setting means for setting a skill level indicating the above, and the cursor moving speed assisting means sets the moving speed of the meet cursor higher as the skill level is lower.

A game control method according to another aspect of the present invention is a game control method in which a game device executes a baseball game in which a batter character strikes a ball object thrown by a pitcher character, and the ball object is placed on the batter character. In order to move and display the meet cursor for determining the hitting position on the display screen of the display device, the move command acquiring means for acquiring the move command input by the player, and the meet cursor When the meet cursor movement assist mode is set to assist the ball object, the meet cursor moves closer to the ball object faster than when the meet cursor movement assist mode is not set. , car a moving speed of the meet cursor A cursor moving speed auxiliary steps Le moving speed auxiliary means for correcting, in accordance with the moving speed and the moving command corrected by the cursor moving speed auxiliary step, the cursor movement display means, moving display of the meet cursor on a display screen A level at which the level setting means sets the skill level indicating the skill of the player based on the history of the distance between the ball object and the meat cursor at the hitting timing at which the batter character hits the ball object. setting a step, based on the batting instruction input by the player, and a striking timing determination step of determining the hitting timing striking timing determination means, in the cursor moving speed auxiliary step, said cursor moving speed aid , As serial skill level is low, setting a large moving speed of the meet cursor.

  The point of this configuration is that the skill level of the player is determined from the player's game history (determined by whether or not the meat cursor is aligned with the ball object), and an appropriate auxiliary level is set based on the determination. It is a point to do. If it explains according to each above-mentioned constituent requirement, first, the movement command inputted into a player in order to move and display the meet cursor on the display screen will be acquired. Further, a batting command for determining the hitting timing of the ball object by the batter character is acquired. Then, the skill level of the player is set based on the history of the distance between the ball object and the meet cursor at the hitting timing. And, as the skill level is lower, the correction amount of the moving speed of the meet cursor is set larger.

  Here, as the skill of the player increases, the distance between the ball object and the meat cursor at the hitting timing tends to narrow (it is good to overlap the ball cursor with the ball object). That is, the distance between the ball object and the meet cursor at the hitting timing reflects the skill of the player. Therefore, every time the player inputs a batting command, the history of the distance between the ball object and the meat cursor at the batting timing is accumulated, and if the skill level is set based on this distance history, it is suitable for the actual skill of the player. A skill level can be set.

  Therefore, in the above configuration, the skill level of the player is calculated based on the distance history. As the skill level becomes lower, the correction amount of the moving speed of the meet cursor is set larger. In other words, the lower the skill level, the greater the degree to which the game device assists the player.

  Therefore, the player can receive appropriate assistance from the game device according to his / her actual skill.

  (2) The level setting means obtains a representative value of the distance each time a predetermined number of distance histories between the meat cursor and the ball object are accumulated, and determines the skill level based on the obtained representative value. It is preferable to set.

  According to this configuration, each time a predetermined number of distance histories between the meat cursor and the ball object are accumulated, a representative value of the distance is obtained using the predetermined number of histories, and the skill level is set using the representative value. Is done. Therefore, even if the distance history has some variation, it is possible to set an appropriate skill level for the player.

(3) If the difference obtained by subtracting the latest representative value from the representative value obtained immediately before the latest representative value is equal to or greater than a specified value, the level setting means uses the latest representative value to determine the skill. While the level is set, if the difference is smaller than the specified value, a new representative value is recalculated using at least the previous representative value and the latest representative value, and the recalculated representative It is preferable to set the skill level using a value.

  According to this configuration, the skill level of the player can be appropriately set when the skill level of the player increases rapidly when the latest representative value is calculated as compared to the previous representative value calculation. Further, if the player's skill at the time of calculating the latest representative value has not improved much compared with the previous calculation of the representative value, the skill is based on the representative value obtained at least one time ago and the latest representative value. The level is set. Therefore, the population for obtaining the representative value increases, and a skill level appropriate for the player can be set.

  (4) When the difference is smaller than the specified value, the level setting means specifies the latest difference that is equal to or greater than the specified value among the previously calculated differences, and calculates the specified latest difference. It is preferable to calculate an average value of each representative value from the newer representative value used for the latest representative value as the representative value to be recalculated, and set the skill level using the representative value.

  According to this configuration, for example, when the specified value is 3 and the representative value is reduced to 12, 11, 10, 7, 6, 5, 4, the representative value is 7, 6, 5, 4. Will be recalculated. For this reason, when the skill level suddenly increases last time, the representative value is recalculated using the subsequent representative value, and the skill level is determined using the recalculated representative value. As a result, the skill level of the player can be set so that the current player level is more appropriately reflected.

  (5) It is preferable that the predetermined number is a value determined in advance based on the average number of times of the batting command per game.

  According to this configuration, the representative value is obtained every time the player plays about one baseball game.

(6) based on the operation command from the player, the baseball game further comprising mode setting means for advancing in the player development mode, the cursor moving speed auxiliary section, if the player development mode is set, before Symbol it is preferable to correct the moving speed of the meet cursor correction amount of the moving speed of the meet cursor at the skill level above the skill level set by the level setting means.

  According to this configuration, when the player training mode is set, the moving speed of the meet cursor is corrected with the correction amount at the skill level above the set skill level. That is, the moving speed of the meet cursor is set slower than the moving speed corresponding to the skill level of the player. Therefore, since the difficulty level of the game is set to be higher than the difficulty level corresponding to the actual skill level of the player, the improvement speed of the skill of the player can be increased.

  (7) Movement after correction of the meet cursor with the direction of the vector sum of the vector connecting the current position of the meet cursor to the current position of the ball object and the vector indicating the move direction of the meet cursor according to the move command It is preferable to further include a cursor movement direction assisting means for setting the direction, and the cursor movement display means moves the meet cursor in the corrected movement direction set by the cursor movement direction assisting means.

  According to this configuration, the direction of the meet cursor is determined in consideration of the direction of the meet cursor indicated by the move command input by the player. Therefore, when the move direction of the meet cursor is determined ignoring the move command. In comparison, the skill of the player can be improved.

  According to the present invention, the player can receive appropriate assistance from the game apparatus according to his / her actual skill.

It is a block diagram which shows the structure of the game device of one embodiment of this invention. It is a main functional block diagram of the game device shown in FIG. It is a screen figure for demonstrating the outline | summary of the baseball game which the game device by this Embodiment performs. It is the figure which showed the virtual three-dimensional space by which the baseball game is expand | deployed with the game device by embodiment of this invention. It is a schematic diagram which shows the correction process of a meat cursor. It is the figure which showed the process at the time of a log | history acquisition part calculating | requiring distance. It is the figure which showed an example of the data structure of a history table. It is the figure which showed an example of the data structure of a skill level determination table. It is a figure for demonstrating the process of a level setting part. It is a figure when the virtual three-dimensional space shown in FIG. 4 is seen from the x-axis direction. (A)-(C) are the figures which showed the calculation process of the initial velocity of the ball object hit. It is the flowchart which showed the process at the time of the game device by embodiment of this invention moving a ball object. It is a flowchart which shows the process performed when the game device by embodiment of this invention sets the skill level of a player. FIG. 4 shows a screen for informing the player of the skill level.

  Hereinafter, a game device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a game device according to one embodiment of the present invention. In the following description, a home video game apparatus configured by connecting a home video game machine to a home television will be described as an example of the game apparatus, but the present invention is not particularly limited to this example. The present invention can be similarly applied to a portable game device or mobile phone in which a monitor is integrated, or a personal computer that functions as a game device by executing a game control program according to the present invention.

  The game device shown in FIG. 1 includes a consumer game machine 100 and a television 200. The home-use game machine 100 is loaded with a computer-readable recording medium 300 on which a game program is recorded, and the game program is appropriately read to execute the game.

  A consumer game machine 100 includes a CPU (Central Processing Unit) 1, a bus line 2, a graphics data generation processor 3, an interface circuit (I / F) 4, a main memory 5, a ROM (Read Only Memory) 6, and an expansion circuit 7. , Parallel port 8, serial port 9, drawing processor 10, audio processor 11, decoder 12, interface circuit (I / F) 13, buffers 14 to 16, recording medium drive 17, memory 18, and controller 19. The television 200 includes a television monitor 21, an amplifier circuit 22 and a speaker 23.

  The CPU 1 is connected to the bus line 2 and the graphics data generation processor 3. The bus line 2 includes an address bus, a data bus, a control bus, and the like. The CPU 1, interface circuit 4, main memory 5, ROM 6, decompression circuit 7, parallel port 8, serial port 9, drawing processor 10, audio processor 11, decoder 12 And the interface circuit 13 are connected to each other.

  The drawing processor 10 is connected to the buffer 14. The audio processor 11 is connected to the buffer 15 and the amplifier circuit 22. The decoder 12 is connected to the buffer 16 and the recording medium drive 17. The interface circuit 13 is connected to the memory 18 and the controller 19.

  The television monitor 21 of the television 200 is connected to the drawing processor 10. The speaker 23 is connected to the amplifier circuit 22.

  In addition, when the game apparatus is configured with a personal computer, a workstation, or the like as a core, the television monitor 21 or the like corresponds to a computer display. In addition, the decompression circuit 7, the drawing processor 10, the audio processor 11, and the like are respectively provided on a part of the game control program data recorded on the recording medium 300 or on hardware on an expansion board installed in an expansion slot of the computer. Correspond. The interface circuit 4, the parallel port 8, the serial port 9, and the interface circuit 13 correspond to hardware on an expansion board mounted in an expansion slot of the computer. The buffers 14 to 16 correspond to the storage areas of the main memory 5 or the expansion memory, respectively.

  Next, each component shown in FIG. 1 will be described. The graphics data generation processor 3 serves as a coprocessor for the CPU 1. That is, the graphics data generation processor 3 performs coordinate conversion and light source calculation, for example, calculation of a fixed point format matrix or vector by parallel processing.

  The main processing performed by the graphics data generation processor 3 includes predetermined data based on the coordinate data, movement amount data, rotation amount data, and the like of each vertex in the two-dimensional or three-dimensional space of the image data supplied from the CPU 1. There are processing for obtaining address data of the processing target image on the display area and returning it to the CPU 1, processing for calculating the luminance of the image according to the distance from the virtually set light source, and the like.

  The interface circuit 4 is used for an interface of a peripheral device such as a pointing device such as a mouse or a trackball. The main memory 5 is composed of a RAM (Random Access Memory) or the like. The ROM 6 stores program data serving as an operating system for the game device.

  The decompression circuit 7 performs decompression processing on a compressed image compressed by intra coding conforming to the MPEG (Moving Picture Experts Group) standard for moving images and the JPEG (Joint Photographic Experts Group) standard for still images. The decompression processing includes decoding processing (decoding of data encoded by VLC: Variable Length Code), inverse quantization processing, IDCT (Inverse Discrete Cosine Transform) processing, intra image restoration processing, and the like.

  The drawing processor 10 performs a drawing process on the buffer 14 based on a drawing command issued by the CPU 1 every predetermined time T (for example, T = 1/60 seconds in one frame).

  The buffer 14 is constituted by a RAM, for example, and is divided into a display area (frame buffer) and a non-display area. The display area is composed of a development area for image data to be displayed on the display surface of the television monitor 21. The non-display area is composed of storage areas such as data for defining a skeleton, model data for defining polygons, animation data for causing the model to move, pattern data indicating the contents of each animation, texture data, and color palette data.

  Here, the texture data is two-dimensional image data. The color palette data is data for designating a color such as texture data. The CPU 1 records these data in the non-display area of the buffer 14 in advance at a time from the recording medium 300 or in a plurality of times according to the progress of the game.

  The drawing command includes a drawing command for drawing a stereoscopic image using a polygon and a drawing command for drawing a normal two-dimensional image. Here, the polygon is a polygonal two-dimensional virtual figure, and for example, a triangle or a quadrangle is used.

  A drawing command for drawing a stereoscopic image using polygons is polygon vertex address data indicating the storage position of polygon vertex coordinate data on the display area of the buffer 14, and the storage position of the texture to be pasted on the polygon 14 on the buffer 14. Is performed on each of the color address data indicating the storage position on the buffer 14 and the color data indicating the texture brightness.

  Among the above data, the polygon vertex address data on the display area is converted by the graphics data generation processor 3 by performing coordinate conversion of the polygon vertex coordinate data in the three-dimensional space from the CPU 1 based on the movement amount data and the rotation amount data. It is replaced with polygon vertex coordinate data in two dimensions. The luminance data is determined by the graphics data generation processor 3 based on the distance from the position indicated by the polygon vertex coordinate data after the coordinate conversion from the CPU 1 to the light source virtually arranged.

  The polygon vertex address data indicates an address on the display area of the buffer 14. The drawing processor 10 performs a process of writing texture data corresponding to the display area range of the buffer 14 indicated by the three polygon vertex address data.

  An object such as a character in the game space is composed of a plurality of polygons. The CPU 1 stores the coordinate data of each polygon in the three-dimensional space in the buffer 14 in association with the corresponding skeleton vector data. When the character is moved on the display screen of the television monitor 21 by an operation of the controller 19 to be described later or when the viewpoint position where the character is viewed is changed, The following processing is performed.

  That is, the CPU 1 obtains the graphics data generation processor 3 from the three-dimensional coordinate data of the vertices of each polygon held in the non-display area of the buffer 14, the skeleton coordinates, and the rotation amount data. Polygon movement amount data and rotation amount data are given.

  The graphics data generation processor 3 sequentially obtains the three-dimensional coordinate data after moving and rotating each polygon based on the three-dimensional coordinate data of the vertex of each polygon and the movement amount data and rotation amount data of each polygon.

  Of the three-dimensional coordinate data of each polygon thus obtained, the coordinate data in the horizontal and vertical directions are supplied to the drawing processor 10 as address data on the display area of the buffer 14, that is, polygon vertex address data.

  The drawing processor 10 writes the texture data indicated by the texture address data assigned in advance on the display area of the buffer 14 indicated by the three polygon vertex address data. As a result, on the display screen of the television monitor 21, an object in which textures are pasted on a large number of polygons is displayed.

  A drawing command for drawing a normal two-dimensional image indicates vertex address data, texture address data, color palette address data indicating the storage position on the buffer 14 of color palette data indicating the color of the texture data, and luminance of the texture. This is performed on the luminance data. Among these data, the vertex address data is obtained by the coordinate conversion of the vertex coordinate data on the two-dimensional plane from the CPU 1 by the graphics data generation processor 3 based on the movement amount data and the rotation amount data from the CPU 1.

  The audio processor 11 stores ADPCM (Adaptive Differential Pulse Code Modulation) data read from the recording medium 300 in the buffer 15, and the ADPCM data stored in the buffer 15 becomes a sound source.

  Also, the audio processor 11 reads ADPCM data from the buffer 15 based on, for example, a clock signal having a frequency of 44.1 kHz. The audio processor 11 performs processing such as pitch conversion, noise addition, envelope setting, level setting, and reverb addition on the read ADPCM data.

  When the audio data read from the recording medium 300 is PCM (Pulse Code Modulation) data such as CD-DA (Compact Disk Digital Audio), the audio processor 11 converts the audio data into ADPCM data. Further, the processing for the PCM data by the program is directly performed on the main memory 5. The PCM data processed on the main memory 5 is supplied to the audio processor 11 and converted into ADPCM data. Thereafter, the various processes described above are performed, and sound is output from the speaker 23.

  As the recording medium drive 17, for example, a DVD-ROM drive, a CD-ROM drive, a hard disk drive, an optical disk drive, a flexible disk drive, a silicon disk drive, a cassette medium reader, or the like is used. In this case, as the recording medium 300, a DVD-ROM, a CD-ROM, a hard disk, an optical disk, a flexible disk, a semiconductor memory, or the like is used.

  The recording medium drive 17 reads image data, audio data, and program data from the recording medium 300 and supplies the read data to the decoder 12. The decoder 12 performs error correction processing by ECC (Error Correction Code) on the reproduced data from the recording medium drive 17 and supplies the data subjected to the error correction processing to the main memory 5 or the audio processor 11.

  For example, a card-type memory is used as the memory 18. The card type memory is used for holding various game parameters at the time of interruption, such as holding the state at the time of interruption when the game is interrupted.

  The controller 19 is an operation device used by the player who is an operator to input various operation commands, and sends an operation signal corresponding to the operation of the player to the CPU 1. The controller 19 includes a first button 19a, a second button 19b, a third button 19c, a fourth button 19d, an up key 19U, a down key 19D, a left key 19L, a right key 19R, and L1 buttons 19L1, L2. A button 19L2, an R1 button 19R1, an R2 button 19R2, a start button 19e, a select button 19f, a left stick 19SL and a right stick 19SR are provided.

  The up direction key 19U, the down direction key 19D, the left direction key 19L, and the right direction key 19R are used, for example, to give the CPU 1 a command for moving a character or cursor up, down, left, or right on the screen of the television monitor 21. .

  The start button 19e is used to instruct the CPU 1 to load a game program from the recording medium 300. The select button 19f is used to instruct the CPU 1 to make various selections related to the game program loaded from the recording medium 300 to the main memory 5.

  The buttons and keys of the controller 19 except for the left stick 19SL and the right stick 19SR are turned on when pressed from the neutral position by an external pressing force, and return to the neutral position when the pressing force is released. It consists of an on / off switch that turns off.

  The left stick 19SL and the right stick 19SR are stick-type controllers having almost the same configuration as a so-called joystick. This stick-type controller has an upright stick, and can be tilted over a 360 ° direction including front, rear, left and right with a predetermined position of the stick as a fulcrum. The left stick 19SL and the right stick 19SR are connected to the CPU 1 via the interface circuit 13 using the values of the x-coordinate in the left-right direction and the y-coordinate in the front-rear direction as the operation signals according to the tilt direction and tilt angle of the stick. To send.

  The first button 19a, the second button 19b, the third button 19c, the fourth button 19d, the L1 button 19L1, the L2 button 19L2, the R1 button 19R1, and the R2 button 19R2 are added to the game control program loaded from the recording medium 300. It is used for various functions accordingly.

  Next, a schematic operation of the above game device will be described. When the recording medium 300 is loaded in the recording medium drive 17, when a power switch (not shown) is turned on and the game apparatus is turned on, the recording medium 300 is based on the operating system stored in the ROM 6. The CPU 1 instructs the recording medium drive 17 to read the game program from. As a result, the recording medium drive 17 reads image data, audio data, and program data from the recording medium 300. The read image data, audio data, and program data are supplied to the decoder 12, and the decoder 12 performs error correction processing on each data.

  The image data that has been subjected to error correction processing by the decoder 12 is supplied to the decompression circuit 7 via the bus line 2. The image data that has been subjected to the expansion processing described above by the expansion circuit 7 is supplied to the drawing processor 10, and is written into the non-display area of the buffer 14 by the drawing processor 10. The audio data that has been subjected to the error correction processing by the decoder 12 is written into the buffer 15 via the main memory 5 or the audio processor 11. Program data that has been subjected to error correction processing by the decoder 12 is written into the main memory 5.

  Thereafter, the CPU 1 causes the game to proceed based on the game control program stored in the main memory 5 and the content instructed by the player using the controller 19. In other words, the CPU 1 appropriately performs control of image processing, control of sound processing, control of internal processing, and the like based on content that the player instructs using the controller 19.

  As image processing control, for example, the calculation of the coordinates of each skeleton or the calculation of the vertex coordinate data of polygons from the pattern data corresponding to the animation instructed to the character, the obtained three-dimensional coordinate data and the graphics data of the viewpoint position data Supply to the generation processor 3, issue of a rendering command including address data and luminance data on the display area of the buffer 14 obtained by the graphics data generation processor 3 are performed.

  As control of audio processing, for example, issue of an audio output command to the audio processor 11, specification of level, reverb, etc. are performed. As control of the internal processing, for example, calculation according to the operation of the controller 19 is performed.

  Next, the game executed based on the game program recorded on the recording medium 300 will be described. The game in this embodiment is based on a baseball game.

  FIG. 3 is a screen diagram for explaining an outline of the baseball game executed by the game device according to the present embodiment. In this baseball game, the batter character CL1 hits the ball object BL thrown by the pitcher character CL2 in the game space which is a virtual three-dimensional space. Specifically, as shown in FIG. 3, this baseball game is a baseball game in which the pitcher character CL2 throws the ball object BL and the batter character CL1 returns the ball object BL with the bat object BT.

  In this baseball game, when the player is on the attack side, the player operates the controller 19 to move the meat cursor K displayed in the outer frame WK indicating the strike zone SZ on the display screen, so that the ball object BL is home. When the vicinity of the base is reached, the meat cursor K is positioned on the ball object BL and a batting command is input. Then, the bat object BT is displayed as a swing, and the ball object BL is hit back.

  Next, main functions of the game apparatus when a baseball game is played using the game apparatus configured as described above will be described. FIG. 2 is a main functional block diagram of the game apparatus shown in FIG.

  As shown in FIG. 2, the game device functionally includes an operation unit 410, a display unit 420, a program execution unit 430, a data storage unit 450, and a program storage unit 460.

  The operation unit 410 includes the controller 19 and the like, and receives various inputs necessary for the game to progress by the player. In the present embodiment, when the player is on the attack side and the game apparatus is on the defensive side, the operation unit 410 displays a meet cursor on the display unit 420 for determining the position where the batter character hits the ball object. A movement command for moving on the screen is input. Then, the operation unit 410 outputs a movement command signal indicating the input movement command to the program execution unit 430.

  The operation unit 410 also receives a batting command for determining the ball object batting timing. Then, the operation unit 410 outputs an impact command signal indicating the input impact command to the program execution unit 430.

  Here, for example, the player inputs a movement command by tilting the left stick 19SL or the right stick 19SR. Further, the movement command signal output by the operation unit 410 includes information indicating the direction in which the left stick 19SL or the right stick 19SR is tilted. As information indicating the tilted direction, for example, on the standing surface of the left stick 19SL or the right stick 19SR, the tilt direction before and after the left stick 19SL or the right stick 19SR is used as a reference direction, and the reference direction and the left stick 19SL are used. Alternatively, a clockwise angle with the direction in which the right stick 19SR is tilted can be adopted.

  Further, the player inputs a batting command by pressing one of the first to fourth buttons 19a to 19d, for example.

  When the player is on the defensive side and the game device is on the attacking side, the operation unit 410 causes the pitcher character to start a pitching operation and a course setting command for setting the course of the ball object. Accept.

  The display unit 420 includes the television 200 shown in FIG. 1 and displays various images under the control of the program execution unit 430.

  The program execution unit 430 includes the CPU 1 and the graphics data generation processor 3 shown in FIG. 1, and includes a game progress control unit 431, a movement command acquisition unit 432 (an example of a movement command acquisition unit), and an impact timing determination unit 433 (an impact) An example of timing determination means), a cursor movement speed auxiliary section 434 (an example of cursor movement speed auxiliary means), a cursor movement direction auxiliary section 435 (an example of cursor movement direction auxiliary means), a cursor movement display section 436 (of the cursor movement display means) An example), a history acquisition unit 437, a level setting unit 438 (an example of a level setting unit), a mode setting unit 439 (an example of a mode setting unit), an impact determination unit 440, and an impact power setting unit 441.

  The game progress control unit 431 is for progressing the baseball game. Specifically, when the player is on the attack side, the game progress control unit 431 causes the pitcher character displayed on the display unit 420 to perform a pitching action at a predetermined timing, sets the trajectory of the ball object, The ball object is moved and displayed on the display unit 420 according to the set trajectory.

  Further, when the player is on the defensive side, the game progress control unit 431 causes the pitcher character displayed on the display unit 420 to perform a pitching operation when a pitching start command is input from the player to the operation unit 410. The trajectory of the ball object is set in accordance with the course setting command input to, and the ball object is moved and displayed on the display unit 420 according to the set trajectory.

  FIG. 4 is a diagram showing a virtual three-dimensional space in which a baseball game is developed by the game device according to the embodiment of the present invention. 4 indicates a direction parallel to a straight line L3 connecting the center O2 of the pitcher mound and the center O3 of the home base HB in the virtual three-dimensional space, and indicates the traveling direction of the ball object BL. In addition, y indicates a vertical direction, and x indicates a direction orthogonal to the vertical direction and the traveling direction. Here, the xz plane is parallel to the ground surface ES, and the x and z coordinates define each position of the ground surface ES. The vertical direction is a direction orthogonal to the ground surface ES. In the present embodiment, y increases as the distance from the ground surface ES increases. Further, z increases from the center O2 of the pitcher mound toward the center O3 of the home base HB. Further, x is, for example, + on the left side and-on the right side when viewed in the + z direction. The origin of the x, y, and z axes is assumed to be at the center O2.

  The strike zone SZ is, for example, a rectangular area that is set on the striking surface SF that passes through the center O3 and is parallel to the xy plane, and is surrounded by the outer frame WK. A virtual three-dimensional space (game space) is set based on the strike zone.

  The center OS of the strike zone SZ is located a predetermined distance away from the center O3 in the + y direction, and corresponds to the middle of the strike zone.

  The meat cursor K moves on the striking surface SF in accordance with a movement command input to the operation unit 410. As the size of the striking surface SF, a size slightly larger than the size of the strike zone SZ can be adopted. A pitcher character CL2 and a batter character CL1 shown in FIG. 3 are arranged on the ground surface ES. A catcher character and a referee character are arranged on the + z side from the home base HB.

  If the pitcher character CL2 is thrown to the right, for example, a point SP separated by a distance dL in the −x direction from a point SP ′ that is H (O) away from the center O2 in the y direction is the release of the ball object BL by the pitcher character CL2. It becomes a point.

  The movement command acquisition unit 432 receives the movement command signal output from the operation unit 410 and acquires the movement command of the meet cursor. In addition, the movement command acquisition unit 432 acquires a batting command by receiving the batting command signal output from the operation unit 410.

  The hit timing determination unit 433 determines the hit timing at which the batter character hits the ball object based on the hit command input by the player. Here, the hit timing determination unit 433 sets the bat object whose swing is started by the batter character based on the reception time of the hit command signal output from the operation unit 410 on the hitting surface set in the virtual three-dimensional space. A time at which a predetermined time required to reach the time is determined as an impact timing.

  The cursor movement speed auxiliary unit 434 performs the following operation when the mode setting unit 439 sets a meat cursor movement auxiliary mode in which the meat cursor is auxiliaryly brought close to the ball object.

  That is, the cursor movement speed assist unit 434 allows the meat cursor to approach the ball object more quickly when the meet cursor movement assist mode is set than when the meet cursor movement assist mode is not set. Correct the movement speed of the cursor. In this case, the cursor movement speed auxiliary unit 434 sets the meat cursor movement speed higher as the skill level set in the level setting unit 438 is lower.

  The moving speed of the meet cursor when the meet cursor moving assist mode is not set is described as “default moving speed”.

  Then, the cursor movement speed auxiliary unit 434 predetermines each skill level set by the level setting unit 438 and a correction amount of the movement speed corresponding to each skill level. Here, the relationship between the skill level and the correction amount of the moving speed is such that the correction amount of the moving speed increases as the skill level decreases, in other words, the correction amount of the moving speed decreases as the skill level increases. Have. Then, when the skill level of the player is set in the level setting unit 438, the cursor moving speed auxiliary unit 434 adds the correction amount of the moving speed of the meet cursor corresponding to the skill level to the default moving speed. The cursor movement speed is corrected, and the corrected movement speed is set as the meet cursor movement speed.

  On the other hand, when the mode setting unit 439 does not set the meet cursor movement assist mode, the cursor moving speed assist unit 434 sets the meet cursor moving speed to the default moving speed.

  The cursor movement direction auxiliary unit 435 determines the direction of the vector sum of the vector connecting the current position of the meat cursor K to the current position of the ball object and the vector indicating the movement direction of the meat cursor by the movement command after correcting the meat cursor. Set as moving direction.

  FIG. 5 is a schematic diagram showing the correction process for the meet cursor. As shown in FIG. 5, the cursor movement direction auxiliary unit 435 projects the center of gravity G1 (Xg, Yg, Zg) of the ball object BL from the center O1 (Xk, Yk, Zk) of the meet cursor K onto the striking surface. A vector VC1 which is a two-dimensional vector connecting up to G1 ′ (Xg, Yg, Zk) is obtained. That is, a vector represented by VC1 = (Xg−Xk, Yg−Yk) is obtained.

  Next, the cursor movement direction auxiliary unit 435 obtains a vector VC2 in the movement direction indicated by the current movement command of the meet cursor K acquired by the movement command acquisition unit 432. Here, the vector VC2 is a two-dimensional vector. The direction of the vector VC2 is the direction in which the y-axis is rotated by θ clockwise when the angle indicated by the movement command signal acquired by the movement command acquisition unit 432 is θ. Further, as the length of the vector VC2, it is possible to adopt a predetermined length that is not much different from the average length of the vector VC1.

  Next, the cursor movement direction auxiliary unit 435 obtains a vector VC3 that is a vector sum of the vector VC1 and the vector VC2. The direction of the vector VC3 is the moving direction of the meet cursor K. The meat cursor K is moved and displayed in the moving direction at a moving speed corrected according to the skill level.

  The cursor movement direction auxiliary unit 435 may change the length of the vector VC2 according to the skill level so that the length of the vector VC2 becomes shorter as the skill level set by the level setting unit 438 becomes lower. Good. In this way, the specific gravity of the vector VC1 in the vector VC3 becomes higher than that of the vector VC2 as the skill of the player decreases. As a result, the player can receive more assistance from the game device side as the skill level decreases in the moving direction of the meet cursor K.

  The cursor movement direction auxiliary unit 435 corrects the movement direction by calculating the vector VC3 when the output of the movement command signal is started from the operation unit 410, and thereafter, is constant until the output of the movement command signal is stopped. The vector VC3 is calculated at a time interval (for example, a frame period) to correct the moving direction.

  The cursor movement direction auxiliary unit 435 matches the projection position G1 ′ (Xg, Yg, Zk) of the center of gravity G1 of the ball object BL with the center O1 (Xk, Yk, Zk) of the meat cursor K. Then, the process of correcting the moving direction is terminated in order to make the meat cursor K follow the movement of the ball object BL. At this time, the cursor movement speed auxiliary unit 434 also cancels the setting of the movement speed of the meat cursor K so that the meat cursor K follows the movement of the ball object BL.

  Returning to FIG. 2, the cursor movement display unit 436 displays the meet cursor K on the display unit 420 based on the movement speed corrected by the cursor movement speed auxiliary unit 434 and the movement direction corrected by the cursor movement direction auxiliary unit 435. Move and display on the screen.

  Specifically, when the output of the movement command signal is started from the operation unit 410, the cursor movement display unit 436 displays the meet cursor K in the direction of movement corrected by the cursor movement direction auxiliary unit 435 at that time. Movement display is performed at the movement speed corrected by the movement speed auxiliary unit 434. Thereafter, the cursor movement display unit 436 switches the movement direction of the meet cursor K each time the cursor movement direction auxiliary unit 435 sets the movement direction of the meet cursor. Then, when the output of the movement command signal from the operation unit 410 is stopped, the cursor movement display unit 436 stops the movement of the meet cursor K and stops the display of the meet cursor K at that position.

  Further, the cursor movement display unit 436 indicates that the projection position G1 ′ (Xg, Yg, Zk) of the center of gravity G1 of the ball object BL onto the striking surface SF coincides with the center O1 (Xk, Yk, Zk) of the meat cursor K. The X and Y coordinates of the meat cursor K are set to the same values as the X and Y coordinates of the ball object BL, and the meat cursor K is moved so that the meat cursor K follows the ball object BL. Is displayed. That is, when the projection position G1 ′ and the center O1 coincide with each other, the cursor movement display unit 436 locks the meat cursor K on the ball object BL thereafter.

  The history acquisition unit 437 obtains the distance between the meat cursor K and the ball object BL at the hit timing determination time each time the hit timing is determined by the hit timing determination unit 433, and stores this distance as a history in the history storage unit 451. Let

FIG. 6 is a diagram illustrating processing when the history acquisition unit 437 obtains the distance. As illustrated in FIG. 6, when the batting command signal is output from the operation unit 410 and the batting timing determination unit 433 determines the batting timing, the history acquisition unit 437 determines the center of gravity G1 of the ball object BL when the batting timing is determined ( Xg, Yg, Zg) is projected onto the striking surface SF to obtain a projection position G1 ′ (Xg, Yg, Zk). Next, a distance Dk between the center O1 (Xk, Yk, Zk) of the meet cursor K and the projection position G1 ′ (Xg, Yg, Zk) at the time of hitting timing determination is obtained. Here, the distance Dk is represented by Euclidean of Dk = ((Xg−Xk) ² + (Yg−Yk) ² ) ^1/2 , for example.

  Then, the history acquisition unit 437 writes the calculated distance Dk in the history table stored in the history storage unit 451 in association with a numerical value indicating how many times the distance Dk is calculated. FIG. 7 is a diagram illustrating an example of a data structure of a history table stored in the history storage unit 451. As shown in FIG. 7, the history table has columns for the number of times and the distance. In the number of times column, a numerical value indicating how many times the distance Dk is calculated is stored. The distance column stores the distance Dk calculated every time the hitting timing is determined.

  Here, the history acquisition unit 437 may determine the number of times the distance Dk is calculated using a number counter that is incremented by one every time the distance Dk is calculated.

  The number counter counts the total number of times since the player purchased the recording medium 300 storing the game control program and started the game. That is, the count value of the number counter is stored even when the game apparatus is turned off.

  When the game apparatus is used by a plurality of players, a number counter is prepared for each player, and a history table for each player may be created. In this case, the history acquisition unit 437 causes the player to input his / her user name when the game apparatus is turned on and the game is started, and a history counter and a history table previously associated with the input user name are displayed. Identify. Then, the history acquisition unit 437 may store the number of times counted by the specified number counter in the specified history table in association with the distance Dk.

  Returning to FIG. 2, the level setting unit 438 sets a skill level indicating the skill of the player based on the history of the distance Dk between the ball object BL and the meat cursor K when the hit timing is determined by the hit timing determination unit 433. To do.

  Here, the level setting unit 438 obtains a representative value of the distance Dk each time a predetermined number of histories of the distance Dk between the meat cursor K and the ball object BL are accumulated, and determines the skill level based on the obtained representative value. Set. Here, as the representative value, for example, an arithmetic average or a geometric average can be employed. Further, as the predetermined number, a value determined in advance based on the average number of times of hitting commands per game can be adopted, and for example, 100 can be adopted.

  Here, the level setting unit 438 sets the skill level using, for example, a skill level determination table in which the relationship between the skill level and the representative value is associated. FIG. 8 is a diagram showing an example of the data structure of the skill level determination table.

  As shown in FIG. 8, the skill level determination table includes a skill level column and a representative value column. A numerical value indicating the skill level is stored in the skill level column. In the present embodiment, there are 250 skill levels, for example, 1 to 250. The skill level indicates that the skill of the player is higher as the numerical value increases from 1 to 250.

  The range of the representative value α of the distance Dk corresponding to each skill level is stored in the representative value column. When the representative value α of the distance Dk is α ≧ αm, the skill level is set to 1. That is, the player tends to increase the distance Dk as the skill is lower. Therefore, when the representative value α of the distance Dk is greater than or equal to αm, the skill level is set to 1 which is the lowest.

  When the representative value α of the distance Dk is αm> α ≧ αm−1, the skill level is 2, and when αm−1> α ≧ αm−2, the skill level is 3, so that the skill level is 1 to 250. Is set. That is, when the representative value α of the distance Dk is divided into 1 to 250 classes, the level setting unit 438 sets the skill level according to which class the representative value α belongs to.

  In the present embodiment, there are two skill levels, a skill level used for internal processing and a skill level notified to the player. As the skill level used for the internal processing, 1 to 250 shown in FIG. 8 is adopted. Further, the skill level notified to the player is roughly divided from the skill level used for the internal processing, and for example, 1 to 5 are adopted.

  The level setting unit 438 divides the skill levels 1 to 250 shown in FIG. 8 into 1 to 5 classes for every 50 pieces, such as 1 to 50, 51 to 100,. A skill level to be notified to the player may be set using a class of 5.

  FIG. 14 shows a screen for informing the player of the skill level. The screen diagram of FIG. 14 is displayed on the display unit 420 when the player starts the baseball game. In this screen view, various setting items such as batting and pitching are provided. Then, the player uses the operation unit 410 to select various setting items and performs setting work. In FIG. 14, the hit setting item is selected, and the meet assist level item is selected from the hit setting items. In the meet assist level pull-down menu, level 1 to level 5 and optional items are provided. When the player selects any item from level 1 to level 5, the level setting unit 438 sets the level selected by the player as the skill level of the player. In this case, mode setting unit 439 cancels the meet cursor movement assist mode.

  On the other hand, when the player selects Omakase, the mode setting unit 439 sets the meet cursor movement assist mode. Thereby, the player can set the skill level by the game device and receive appropriate operation assistance without reporting the skill level by himself / herself.

  In the lower part of FIG. 14, “currently (level 5)” is described, and the player is notified that the current skill level of the player is 5.

  Returning to FIG. 2, if the difference obtained by subtracting the latest representative value from the representative value obtained immediately before the latest representative value is equal to or greater than the specified value, the level setting unit 438 uses the latest representative value to determine the skill level. Set. FIG. 9 is a diagram for explaining the processing of the level setting unit 438. The coordinate axes shown in FIG. 9 indicate the number of times of calculating the distance Dk, that is, the number of times of determining the impact timing. Then, the level setting unit 438 calculates the representative value every time the calculation number of the distance Dk increases by 100.

  In FIG. 9, the representative value α (p) calculated when the number of times the distance Dk is calculated reaches 300 is set as the latest representative value. The representative value α (p) is a representative value calculated using the history of 100 distances Dk calculated for the 201st to 300th times. The representative value α (p−1) obtained immediately before is a representative value calculated using the history of 100 distances Dk calculated for the 101st to 200th times.

  Then, the level setting unit 438 sets the skill level using the representative value α (p) if the difference Δk (p) = α (p−1) −α (p) is equal to or greater than the specified value.

  On the other hand, when the difference Δk (p) is less than the specified value, the level setting unit 438, based on the representative value α (p−1) obtained at least one time ago and the latest representative value α (p), Set the skill level.

  In this case, the level setting unit 438 determines that α (p−1) and α (p) if the difference Δk (p−1) between α (p−2) and α (p−1) is equal to or greater than a specified value. And the skill level may be set using the representative value.

  Further, the level setting unit 438 determines that α (p−2) and α (p−) when the difference Δk (p−1) is less than the specified value and the difference Δk (p−2) is equal to or greater than the specified value. The average value of 1) and α (p) may be obtained as a representative value, and the skill level may be set using this representative value.

  That is, when the difference Δk (p) is less than the specified value, the level setting unit 438 specifies the latest difference that is equal to or greater than the specified value among the previously calculated differences, and calculates the specified latest difference. What is necessary is just to obtain | require the average value of each representative value from the representative value of the newer one used to the latest representative value, and to set a skill level using this average value.

  Returning to FIG. 2, the mode setting unit 439 sets the baseball game to the player training mode based on the operation command from the player. Here, the player training mode is a mode provided for the purpose of increasing the speed of improvement of the skill of the player.

  When the player training mode is set, the cursor movement speed auxiliary unit 434 moves the meat cursor with the correction amount of the movement speed of the meat cursor at the skill level higher than the skill level set by the level setting unit 438. Correct the speed. For example, when the skill level of the player is set to 3 by the level setting unit 438, the level setting unit 438 moves the movement speed corresponding to 8 which is a skill level several steps higher than the skill level (for example, five steps above). Is added to the default moving speed to correct the moving speed of the meet cursor. As a result, the moving speed of the meet cursor becomes slower than the moving speed of the meet cursor when the player training mode is not set. As a result, the player must quickly react to the ball object moving on the display screen and move the meet cursor, and the amount of assistance on the game apparatus side is reduced, so that the speed of improvement of the player can be increased.

  In the training mode, if the skill level set by the level setting unit 438 is increased by, for example, five levels, a player with a skill level of 246 is saturated with a skill level exceeding 250. In this case, the skill level may be set to 250 which is the saturation level.

  When the player training mode is set, the cursor movement direction auxiliary unit 435 moves the meet cursor with the correction amount in the move direction of the meet cursor at the skill level higher than the skill level set by the level setting unit 438. The direction may be corrected. In this case, the length of the vector VC2 shown in FIG. 5 is longer than the length corresponding to the skill level set by the level setting unit 438, and the auxiliary amount on the game apparatus side is reduced.

  The mode setting unit 439 sets the baseball game to the meet cursor movement assist mode based on the player's operation command. Here, the meet cursor assist mode is a mode in which the game apparatus side assists the player to move the meet cursor. Specifically, when the meet cursor movement assistance mode is set, the cursor movement speed assistance unit 434 and the cursor movement direction assistance unit 435 correct the movement speed and movement direction of the meet cursor.

  The hit determination unit 440 determines that the batter character can hit the ball object when the ball object overlaps the meat cursor at the hit timing determined by the hit timing determination unit 433.

  FIG. 10 is a diagram when the virtual three-dimensional space shown in FIG. 4 is viewed from the x-axis direction. As shown in FIG. 10, the batting determination unit 440 starts a predetermined time from when the batting command is input to the operation unit 410 until the batter character starts swinging the bat object and the bat object reaches the batting surface SF. The time when elapses is determined as the hitting timing. The hit determination unit 440 determines that the ball object BL has been hit by the batter character when the ball object BL and the meat cursor K overlap at the hit timing.

  However, in this case, the difficulty level of the game becomes extremely high, and there is a possibility that the game is not interesting. Therefore, in the present embodiment, for example, at the hitting timing, the z component of the ball object BL is separated from the hitting surface SF by a distance d1 in the −z direction, and away from the hitting surface SF by a distance d2 in the + z direction. And the extension line of the ball object BL at that time intersects the meat cursor K on the hitting surface SF, it may be determined that the ball object BL and the meat cursor K overlap each other. .

  Here, as an extension line of the ball object BL, for example, a straight line extending from the center of gravity G1 of the ball object BL in the direction of the speed of the ball object BL when the hitting timing is determined can be employed.

  Alternatively, if the z component of the ball object BL exists between a position that is a distance d1 away from the striking surface SF and a position that is a distance d2 away from the striking surface SF at the hitting timing, the center of gravity at that time When a striking surface SF ′ passing through G1 and parallel to the striking surface SF is set, the meat cursor K on the striking surface SF is projected on the set striking surface SF ′, and the projected meat cursor K and the ball object BL overlap. It may be determined that the ball object BL and the meat cursor K overlap.

  In addition, as d1 and d2, the same distance as the length of the z component of the strike zone from the striking surface SF, or a distance obtained by adding or subtracting some margin can be employed.

  Returning to FIG. 2, when the hit determination unit 440 determines that the ball object BL and the meat cursor K overlap at the hit timing, the hit power setting unit 441 sets the hit power for hitting the ball object BL. To do.

  Here, the hitting power setting unit 441 sets the hitting power larger as the passing position of the center of gravity G1 of the ball object BL with respect to the meet cursor K is closer to the center of the meet cursor K at the hitting timing. In this embodiment, the initial velocity V0 of the ball object BL can be adopted as the hitting power, and the hit determining unit 440 determines the magnitude and direction of the reference initial velocity Vref that is predetermined for the ball object BL. By correcting, the initial velocity V0 of the ball object BL is obtained.

  FIGS. 11A to 11C are diagrams showing a calculation process of the initial velocity V0 of the hit ball object BL. As shown in FIG. 11A, it is assumed that the center of gravity of the region where the ball object BL and the meat cursor K overlap is a point P4 (u, v). However, u is a coordinate axis passing through the center O1 of the meet cursor K and parallel to the longitudinal direction of the meet cursor K, and v is a coordinate axis passing through the center O1 and orthogonal to the u axis.

  In this case, the hitting power setting unit 441 obtains a distance ds between the point P4 and the center O1, obtains a correction coefficient β for setting the reference initial speed Vref to be smaller as the distance ds increases, and uses the correction coefficient β as a reference. By multiplying the initial speed Vref (β · Vref), the magnitude of the reference initial speed Vref is corrected, and the magnitude of the corrected reference initial speed Vref may be set as the magnitude of the initial speed V0 of the ball object BL. .

  The striking power setting unit 441 outputs the correction coefficient β, receives the distance ds, and calculates the correction coefficient β using a predetermined function in which the correction coefficient β increases as the distance ds decreases. .

  As shown in FIG. 11A, the meet cursor K includes a meet area MD and a bat area BD around the meet area MD. The butt area BD has a shape simulating the cross-sectional shape in the longitudinal direction of the bat, and the meat area MD is set at a location including the center O1.

  For example, when the point P4 is located in the bat area BD, the striking power setting unit 441 determines the magnitude of the initial velocity V0 so that the point P4 is significantly smaller than when the point P4 is located in the meet area MD. That's fine.

  Next, a method for calculating the direction of the initial velocity V0 of the ball object BL by the hitting power setting unit 441 will be described with reference to FIGS. The striking power setting unit 441 has a pitch angle θ1 of the reference direction Dref indicating the direction of the predetermined reference initial speed Vref shown in FIG. 11B according to the value of v at the point P4 shown in FIG. Is corrected, and the corrected pitch angle θ1 of the reference direction Dref is set as the pitch angle of the initial speed V0.

  Specifically, the striking power setting unit 441 sets the correction amount in the reference direction Dref to 0 when v at the point P4 is located on the u-axis, and sets v of the point P4 when v at the point P4 is positive. Depending on the value, the pitch angle θ1 of the reference direction Dref is rotated clockwise by a predetermined angle. When v at the point P4 is negative, the pitch angle θ1 of the reference direction Dref is counterclockwise according to the value of v at the point P4. What is necessary is just to rotate a predetermined angle.

  The pitch angle θ1 of the reference direction Dref is set in a counterclockwise direction with respect to the z axis.

  Further, if u at the point P4 is positive, the striking power setting unit 441 uses the yaw angle θ2 in the reference direction Dref as a reference based on the z-axis according to the value of u at the point P4 as shown in FIG. As shown in FIG. 4, the rotation is performed by a predetermined angle in the clockwise direction (+ θ2 side), and the yaw angle θ2 in the reference direction Dref after the rotation is set as the yaw angle of the initial speed V0.

  On the other hand, if u at point P4 is negative, the striking power setting unit 441 turns the yaw angle θ2 in the reference direction Dref counterclockwise (−θ2 side) based on the z-axis according to the value of u at point P4. The yaw angle θ2 in the reference direction Dref after the rotation is set as the yaw angle of the initial speed V0.

  Further, as shown in FIG. 10, the hitting power setting unit 441 has the center of gravity G1 of the ball object BL shifted from the hitting surface SF in the z direction at the hitting timing. The yaw angle θ2 in the reference direction Dref shown in FIG. 11C is rotated according to the amount of deviation.

  Specifically, when the batter character is a right batter, in FIG. 10, if the center of gravity G1 of the ball object BL is located on the −z direction side from the striking surface SF, it is determined that the batter character has rushed. . Then, according to the distance d between the center of gravity G1 of the ball object BL and the striking surface SF, the yaw angle θ2 shown in FIG. 11C is rotated by a predetermined angle counterclockwise with respect to the z axis.

  On the other hand, when the batter character is a right batter, if the center of gravity G1 of the ball object BL is located on the + z direction side from the striking surface SF, it is determined that the batter character has been delayed. Then, according to the distance d, the yaw angle θ2 shown in FIG. 11C is rotated clockwise by a predetermined angle with respect to the z axis.

  When the batter character is a left batter and rushes, the yaw angle θ2 shown in FIG. 11C is rotated clockwise by a predetermined angle according to the distance d, and when the batter is delayed, the yaw angle θ2 is a distance. Depending on d, it is rotated counterclockwise by a predetermined angle.

  Further, when the point P4 is located in the bat area BD, the hitting power setting unit 441 has the ball rotated in the direction in which the yaw angle θ2 is rotated clockwise or counterclockwise as compared with the case where the point P4 is located in the meat area MD. What is necessary is just to obtain | require as the direction of the initial speed V0 of the object BL.

  Returning to FIG. 2, the data storage unit 450 includes, for example, the main memory 5 and functions as a history storage unit 451 and an image storage unit 452. The history storage unit 451 stores a history table shown in FIG.

  The image storage unit 452 stores image data necessary for realizing the baseball game, and stores, for example, image data of a defensive character, a batter character, a bat object, a baseball field background image, a pitcher character, and the like. To do. Here, as the image data of the background image of the baseball field, for example, image data created in advance by projecting a virtual three-dimensional model created in advance in a virtual three-dimensional space from a predetermined viewpoint can be adopted. .

  The program storage unit 460 includes, for example, the recording medium drive 17 and includes a computer-readable recording medium 461. The recording medium 461 is composed of the recording medium 300 and stores a game control program according to the present invention. When the game control program is read from the recording medium 300 and the game control program is recorded in the main memory 5, the main memory 5 functions as the program storage unit 460.

  FIG. 12 is a flowchart showing processing when the game apparatus moves the ball object according to the embodiment of the present invention. The flowchart shown in FIG. 12 shows a case where the player is on the attacking side.

  First, in step S1, the game progress control unit 431 reads out image data such as the batter character CL1, the bat object BT, the background image of the baseball field, the pitcher character CL2, and the fielder character from the image storage unit 452, and displays them on the display unit 420. Display and make initial settings. In this case, an image as shown in FIG. 3 is displayed on the display unit 420, for example.

  Next, the game progress control unit 431 causes the pitcher character to start pitching at a predetermined timing (step S2).

  At this time, the game progress control unit 431 changes the display mode of the pitcher character CL2 so that the pitcher character CL2 throws the ball object BL. In addition, the game progress control unit 431 sets the trajectory of the ball object BL based on the ability information of the pitcher character CL2, and moves and displays the ball object BL on the display unit 420 according to the set trajectory.

  Next, when the move command of the meet cursor K is input to the player (YES in step S3) and the meet cursor K is not locked on the ball object BL (NO in step S4), the cursor movement speed auxiliary unit 434 Corrects the moving speed of the meet cursor K by a correction amount according to the skill level of the player, and the cursor moving direction auxiliary unit 435 makes the moving direction of the meet cursor K indicated by the operation command close to the ball object BL. Next, the moving direction of the ball object BL is corrected (step S5).

  On the other hand, if no movement command is input in step S3 (NO in step S3), the process proceeds to step S7. In this case, the meet cursor K is stopped and displayed.

  When the meat cursor K is locked on the ball object BL in step S4 (YES in step S4), the cursor movement display unit 436 indicates that the X coordinate and the Y coordinate of the ball object BL are the X coordinates of the meat cursor K. And the meat cursor K is moved and displayed so as to have the same value as the Y coordinate (step S6).

  If NO is determined in step S4 and the meat cursor K is not locked on the ball object BL, the cursor movement display unit 436 moves the meat cursor K with the movement speed and movement direction corrected in step S5. It is displayed (step S6).

  Next, when an impact command is input by the player (YES in step S7), the impact timing determination unit 433 determines an impact timing from the reception time of the impact command signal (step S8).

  On the other hand, if a batting command is not input by the player (NO in step S7), the game progress control unit 431 determines whether the ball object BL has reached the position of the catcher character and the movement of the ball object BL has ended. (Step S9).

  If it is determined that the movement of the ball object BL has not been completed (NO in step S9), the process returns to step S3. On the other hand, when it is determined that the movement of the ball object BL has been completed (YES in step S9), it is determined that the batter character CL1 has not seen the ball object BL, and a see-through process is executed (step S10).

  That is, while the ball object BL is moving, the player can move the meet cursor K on the display screen at any time by inputting a move command, position the meet cursor K on the ball object BL, and input a batting command. Is possible. When the batting command is input, the batting timing is determined, and the processes after step S11 are executed.

  In step S11, when the meat cursor K and the ball object BL overlap at the hitting timing, the hit determination unit 440 determines that the batter character CL1 has hit the ball object BL (YES in step S11), and hits. The power setting unit 441 sets the hitting power (step S13).

  On the other hand, if the meet cursor K and the ball object BL do not overlap at the hitting timing, the hit determination unit 440 determines that the batter character CL1 could not hit the ball object BL (NO in step S11), and the game The progress control unit 431 executes an idle swing process (step S12).

  In the see-through process shown in step S10, the game progress control unit 431 causes the display unit 420 to display an image in which the catcher character catches the ball object BL. In the idle swing process shown in step S12, the game progress control unit 431 causes the display unit 420 to display an image in which the batter character CL1 performs the idle swing motion.

  If YES is determined in step S <b> 11, the game progress control unit 431 causes the display unit 420 to display an image in which the batter character CL <b> 1 hits the ball object BL.

  In step S14, the history acquisition unit 437 obtains the distance Dk between the projection position G1 ′ of the center of gravity G1 of the ball object BL on the striking surface SF and the center O1 of the meat cursor K at the striking timing determined in step S8.

  Then, the history acquisition unit 437 associates the calculated distance Dk with the number of times of calculation of the distance Dk, writes it in the history table, and stores the history of the distance Dk (step S15).

  That is, every time a ball object is thrown, the process shown in the flowchart of FIG. 12 is executed, and when the player inputs a batting command, the distance Dk is calculated regardless of whether the player has swung or was able to strike. The history of the distance Dk is acquired. On the other hand, when the player does not input an impact command, the distance Dk is not calculated, and the history of the distance Dk is not acquired.

  Next, processing when the game device according to the embodiment of the present invention sets the skill level of the player will be described. FIG. 13 is a flowchart showing processing executed when the game device according to the embodiment of the present invention sets the skill level of the player.

  First, in step S21, when the history of the distance Dk is written in the history table, the level setting unit 438 increments the count value k of the number counter by 1 (step S22). Next, when the count value k reaches j (j is an integer of 1 or more) times 100 and the predetermined number of histories for the distance Dk are accumulated (YES in step S23), the level setting unit 438 Is obtained (step S24). In this case, the latest representative value α (p) is an average value of the history of 100 distances Dk accumulated immediately before.

  Next, the level setting unit 438 obtains a difference Δk (p) obtained by subtracting the latest representative value α (p) from the previous representative value α (p−1), and when the difference Δk (p) is equal to or larger than a specified value. (YES in step S25), the skill level is set using the latest representative value α (p) (step S26).

  On the other hand, when the difference Δk (p) is less than the specified value (NO in step S25), the difference greater than the specified value among the previously calculated differences Δk (p−1), Δk (p−2),. Is specified (step S27). Then, the average value of each representative value from the newer representative value used in calculating the specified difference to the latest representative value is calculated, and the representative value is recalculated (step S28).

  If there is no difference equal to or greater than the specified value among the differences calculated in the past, the level setting unit 438 determines that all the representative values α (p−1) and α (p−2) calculated in the past are obtained in step S28. ,... And the latest representative value α (p) may be used to recalculate the representative value.

  For example, when the specified value is 3 and the representative value is decreased to 12, 11, 10, 7, 6, 5, 4, the representative value is recalculated using 7, 6, 5, 4. become. On the other hand, when the representative value is decreased to 12, 11, 10, 9, 8, 7, 6, there is no difference greater than the specified value among the differences calculated in the past, so all these representative values are used. The representative value is recalculated.

  In step S29, the level setting unit 438 sets the skill level using the representative value recalculated in step S28.

  Thus, according to the present game device, the skill level of the player is set based on the history of the distance Dk between the ball object BL and the meet cursor K at the hitting timing. And, as the skill level is lower, the correction amount of the moving speed of the meet cursor is set larger.

  Here, the player tends to decrease the distance between the ball object BL and the meet cursor K at the hitting timing as the skill increases. That is, the distance Dk between the ball object BL and the meet cursor K at the hitting timing reflects the skill of the player. Therefore, whenever the player inputs a batting command, the history of the distance Dk between the ball object BL and the meet cursor K at the batting timing is accumulated, and if the skill level is set based on the history of the distance Dk, the player's actual A skill level suitable for the skill can be set.

  As the skill level becomes lower, the correction amount of the moving speed of the meet cursor K is set larger. That is, the lower the skill level, the greater the degree to which the game device assists the player.

  Therefore, the player can receive appropriate assistance from the game device according to his / her actual skill.

410 operation unit 420 display unit 430 program execution unit 431 game progress control unit 432 movement command acquisition unit (movement command acquisition means)
433 Blow timing determination unit (blow timing determination means)
434 Cursor movement speed auxiliary section (cursor movement speed auxiliary means)
435 Cursor movement direction auxiliary section (cursor movement direction auxiliary means)
436 Cursor movement display section (cursor movement display means)
437 History acquisition unit 438 Level setting unit (level setting means)
439 Mode setting section (mode setting means)
440 Impact determination unit 441 Impact power setting unit

Claims (9)

A game device for executing a baseball game in which a batter character hits a ball object thrown by a pitcher character,
A movement command acquisition means for acquiring a movement command input by a player in order to move and display a meet cursor for determining a position at which the batter character strikes the ball object on the display screen of a display device;
Batting timing determining means for determining batting timing at which the batter character hits the ball object based on a batting command input by a player;
When the meet cursor movement assist mode in which the meet cursor is auxiliaryly approached to the ball object is set, the meet cursor moves faster to the ball object than when the meet cursor movement assist mode is not set. Cursor movement speed auxiliary means for correcting the movement speed of the meet cursor so as to approach each other;
Cursor movement display means for moving and displaying the meet cursor on the display screen based on the movement speed corrected by the cursor movement speed auxiliary means and the movement command;
Level setting means for setting a skill level indicating the skill of the player based on a history of the distance between the ball object and the meet cursor at the hitting timing;
The cursor movement speed auxiliary means is a game device that sets the moving speed of the meet cursor higher as the skill level is lower.   The level setting means obtains a representative value of the distance each time a predetermined number of distance histories between the meat cursor and the ball object are accumulated, and sets the skill level based on the obtained representative value. Item 4. A game device according to Item 1. The level setting means sets the skill level using the latest representative value when the difference obtained by subtracting the latest representative value from the representative value obtained immediately before the latest representative value is equal to or greater than a specified value. On the other hand, when the difference is smaller than the specified value, a new representative value is recalculated using at least the representative value obtained one previous time and the latest representative value, and the recalculated representative value is used. The game apparatus according to claim 2, wherein the skill level is set.   When the difference is smaller than the specified value, the level setting unit is used to specify the latest difference that is equal to or greater than the specified value among the previously calculated differences, and to calculate the specified latest difference. 4. The game apparatus according to claim 3, wherein an average value of each representative value from the newer representative value to the latest representative value is calculated as the representative value to be recalculated, and the skill level is set using the representative value.   The game device according to any one of claims 2 to 4, wherein the predetermined number is a value determined in advance based on an average number of times of the batting command per game. Further comprising mode setting means for causing the baseball game to proceed in a player training mode based on an operation command from the player;
The cursor moving speed auxiliary section, if the player development mode is set, the correction amount of the moving speed of the meet cursor at the skill level above the skill level set by the previous sharp bell setting means Meat The game device according to claim 1, wherein the moving speed of the cursor is corrected. The direction of the vector sum of the vector connecting the current position of the meet cursor to the current position of the ball object and the vector indicating the move direction of the meet cursor according to the move command is set as the corrected move direction of the meet cursor Further comprising a cursor movement direction assisting means,
The game apparatus according to claim 1, wherein the cursor movement display unit moves the meat cursor in the corrected movement direction set by the cursor movement direction auxiliary unit. A game control program for causing a computer to execute a baseball game in which a batter character hits a ball object thrown by a pitcher character,
A movement command acquisition means for acquiring a movement command input by a player in order to move and display a meet cursor for determining a position at which the batter character strikes the ball object on the display screen of a display device;
Batting timing determining means for determining batting timing at which the batter character hits the ball object based on a batting command input by a player;
When the meet cursor movement assist mode in which the meet cursor is auxiliaryly approached to the ball object is set, the meet cursor moves faster to the ball object than when the meet cursor movement assist mode is not set. Cursor movement speed auxiliary means for correcting the movement speed of the meet cursor so as to approach each other;
Cursor movement display means for moving and displaying the meet cursor on the display screen based on the movement speed corrected by the cursor movement speed auxiliary means and the movement command;
Causing the computer to function as level setting means for setting a skill level indicating a skill of the player based on a history of a distance between the ball object and the meet cursor at the hitting timing;
The cursor movement speed auxiliary means is a game control program that sets the movement speed of the meat cursor higher as the skill level is lower. A game control method in which a game device executes a baseball game in which a batter character hits a ball object thrown by a pitcher character,
A movement command acquiring means for acquiring a movement command input by a player in order to move and display a meet cursor for determining a position at which the batter character hits the ball object on the display screen of the display device. An acquisition step;
When the meet cursor movement assist mode in which the meet cursor is auxiliaryly approached to the ball object is set, the meet cursor moves faster to the ball object than when the meet cursor movement assist mode is not set. A cursor movement speed auxiliary step in which the cursor movement speed auxiliary means corrects the movement speed of the meat cursor so as to approach each other ;
A cursor movement display step in which the cursor movement display means moves and displays the meet cursor on the display screen according to the movement speed corrected in the cursor movement speed auxiliary step and the movement command ;
A level setting step in which a level setting unit sets a skill level indicating a skill of the player based on a history of a distance between the ball object and the meat cursor at a hitting timing at which the batter character hits the ball object ;
Based on the hit command inputted by the player, and a striking timing determination step of determining the hitting timing striking timing determination means,
In the cursor movement speed assistance step , the cursor movement speed assistance means sets the movement speed of the meat cursor to be larger as the skill level is lower.

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