JP2010178782A - Moving image generation device, game device, moving image generation method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving image generator suitable for properly displaying characters. <P>SOLUTION: The moving image generator includes: a shape calculation part 201 which calculates the shape of a character matched with any time when given as contained in a prescribed period; a decision part 202 which determines the image generation time matched with each section of time obtained by dividing the prescribed period into equal time intervals from the head to the tail thereof; and an image generation part 203 which gives the image generation time matched with each time section to the shape calculation part 201 to make its calculation and generates the image of the character to be displayed in the time section involved from the calculated shape of the character. The image generation time matched with the time section at its head is equivalent to the time section at its head, and the image generation time matched with the time section at its tail is equivalent to the time section at its tail. When all sections of time are arranged in the order of the passage of time and the game generation time matched with each section of time is arranged in the same order, each image generation time is given in the order of its passage. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a moving image generation device, a game device, a moving image generation method, and a program for realizing these with a computer, which are suitable for appropriately displaying characters.

  2. Description of the Related Art Conventionally, music games in which a player operates buttons and foot switches in synchronization with the rhythm of music and the display on the screen are known. In such a music game, for example, predetermined objects appear sequentially from the bottom of the screen and move to the top of the screen in synchronization with the music to be played. On the other hand, the player presses the button at the timing when these objects reach the determination line serving as a determination reference. If the timing at which the button is pressed matches the arrival timing, a score is added and a graphic indicating that the player's operation input is successful is displayed.

  Some of such music games display a character that takes a motion that matches the rhythm of the music like a back dancer while the player is playing the game. In this way, when a character having a motion that matches the rhythm of the music is displayed, the player can feel as if he is dancing with the character. Such a music game is disclosed in Patent Document 1, for example.

  In such a music game, when the music is determined, the motion of the displayed character is also determined, and the character accurately takes the motion in accordance with the rhythm of the music regardless of the player's poor input. Also, in a music game of a type that displays a plurality of characters, all of the plurality of characters have taken exactly the same motion in accordance with the rhythm of the music regardless of the player's input and output.

Japanese Patent No. 3245147

  However, even if the actual back dancers are in charge of the same motion, not everyone takes the same motion, and there is some variation. In addition, when actual back dancers break the rhythm of the main vocal (which corresponds to the player in the above-described music game), the rhythm is generally disturbed accordingly. Accordingly, there has been a strong demand to change the character motion so that it is as close as possible to the actual back dancer motion.

  The present invention has been made in view of the above problems, and a moving image generating device, a game device, a moving image generating method, and a program for realizing these by a computer that are suitable for displaying characters appropriately. The purpose is to provide.

  In order to achieve the above object, a moving image generation apparatus according to a first aspect of the present invention includes a shape calculation unit, a determination unit, and a generation unit, and is configured as follows.

  First, when any time included in the predetermined period is given, the shape calculation unit calculates the shape of the character associated with the time. That is, when any time t included in a predetermined period from time B to time E is given, the shape calculation unit calculates the shape of the character associated with the time t. That is, the shape calculation unit calculates the shape at each time of the character performing a predetermined choreography within a predetermined period in the virtual space. The shape calculation unit may calculate the color of the character in addition to the shape of the character. Hereinafter, in this specification, description will be made assuming that the shape of the character can include the color of the character. The generation unit generates an image obtained when a character in the virtual space is projected onto a predetermined projection plane with a predetermined viewpoint as a reference. The predetermined period is a period based on the same viewpoint (hereinafter, It can be set to “scene” if necessary.

  Then, the determination unit determines a generation time associated with each delimiter time that divides the predetermined period from the beginning to the end at equal intervals. That is, the determination unit uses N as a natural number, and generation times G [associated with each of delimiter times B = D [0], D [1],. 0], G [1],..., G [N] are determined. The interval can be set to a period of vertical synchronization interruption (typically 1/60 seconds) which is a display update rate of the display unit.

  Further, the generation unit gives the generation time associated with each of the break times to the shape calculation unit to calculate the shape of the character. Then, the generation unit generates an image of the character to be displayed at the separation time from the calculated character shape. That is, the generation unit gives the generation time G [i] associated with the delimiter time D [i] to the shape calculation unit for each of the integers i = 0, 1,. An image of the character to be displayed at the separation time D [i] is generated from the character shape. When the character images for each separation time generated by the generation unit are arranged in order of the time of the separation time, a character moving image is obtained.

  Here, the start time of the start time and the generation time associated with the start time are set to be equal to the start time of the predetermined period. In addition, the end time of the end of the end times and the generation time associated with the end time of the end are set to be equal to the end time of the predetermined period. Furthermore, when the break times are arranged in the order of passage of time and the generation times associated with the break times are arranged in that order, the order of passage of time is set. That is, the determination unit satisfies G [0] = B and G [N] = E, and each of the integers j = 0, 1,..., N−1 and the integers k = j + 1, j + 2,. For each, G [j] is determined to precede G [k]. In this way, the generation time is determined so that the order of the break times and the order of the generation times associated with the break times are not interchanged. In other words, the generation time associated with a certain break time is determined to be earlier than the generation time associated with a break time earlier than the break time.

  Hereinafter, when an image of a character to be displayed at the separation time is generated based on the character shape calculated by giving the separation time to the shape calculation unit, an action according to choreography is executed at an exemplary speed. An example in which a moving image of a character to be played (hereinafter referred to as “exemplary character”) is generated will be described.

  First, since G [0] = B is established, the same image as the character image to be displayed at time B in order to display the model character is generated as the character image to be displayed at time B. Similarly, since G [N] = E is established, the same image as the character image to be displayed at time E in order to display the model character is generated as the character image to be displayed at time E. . Further, since G [j] precedes G [k] for each of the integers j = 0, 1,..., N−1 and each of the integers k = j + 1, j + 2,. An image of the character is generated so that the order of each action according to the choreography does not change. That is, the character displayed at a separation time other than the first separation time and the last separation time takes an action before or after choreography than the action taken by the model character at the separation time. Do not take the previous action in choreography than the action taken by the character displayed at the previous break time, and after choreography than the action taken by the character displayed at the break time later than the break time Take no action. Therefore, a moving image in which the character performs actions according to choreography faster or slower than the model speed except at the beginning and end of the scene, that is, the character's movement speed fluctuates except at the beginning and end of the scene. Such a moving image is generated. However, the moving image is generated so that the total time required for the character to perform the movement according to the choreography is the same as the time when the character performs the movement according to the choreography at an exemplary speed. . For this reason, it is possible to prevent the movement of the character from changing unnaturally at the joint of the scene.

  As described above, according to the moving image generating apparatus of the present invention, the speed of the action during the movement according to the choreography can be increased without changing the total time required for the character to perform the action according to the choreography. A changed moving image can be generated. Therefore, according to the moving image generating apparatus of the present invention, it is possible to generate a moving image in which the character takes a motion with fluctuation.

  In the moving image generation device of the present invention, the determination unit can be configured to determine the difference between the break time and the generation time associated with the break time based on a random number. By comprising in this way, the speed of the operation | movement in operation according to choreography can be changed at random.

  In the moving image generating apparatus of the present invention, the generating unit may generate images of a plurality of characters. In this case, the determination unit determines the generation time for each of the plurality of characters. When the determination unit determines the generation time using a random number, the generation time is determined randomly for each character. In this case, a moving image is generated in which each character performs an action according to choreography at a different speed for each character. Therefore, it is possible to generate a moving image in which a plurality of characters take motion with different fluctuations.

  According to the moving image generating apparatus of the present invention, it is possible to generate a moving image in which each of a plurality of characters takes a motion with fluctuation.

In the moving image generating apparatus of the present invention, the determination unit selects a predetermined number of delimiter times (hereinafter referred to as “representative time”) from the delimiter times so as to include the first delimiter time and the last delimiter time. The generation time may be determined as shown in the following (A) to (D).
First, (A) the generation time associated with the leading break time in the representative time is determined to be equal to the leading break time.
Then, (B) the generation time associated with the end break time in the representative time is determined to be equal to the end break time.
Further, (C) the difference between the delimiter time other than the first delimiter time and the last delimiter time in the representative time and the generation time associated with the delimiter time is determined based on the random number.
Then, (D) when the representative times are arranged in the order of passage of time, the generation time associated with the separation time between the two representative times adjacent to each other is determined so that the intervals between the generation times are equal.

  According to the moving image generation apparatus of the present invention, only a specific generation time is determined based on random numbers, and other generation times are determined based on generation times determined using the random numbers. Compared with the case where the generation time is determined based on random numbers, an improvement in processing speed can be expected. In addition, the generation times between two adjacent generation times determined based on random numbers are determined at equal intervals. Thereby, it is possible to prevent the movement speed of the displayed character from changing extremely in a short time, that is, to increase the fluctuation cycle of the movement speed of the character.

The moving image generation apparatus of the present invention may further include a storage unit that stores a reference value of a difference between a break time and a generation time associated with the break time for each break time.
In this case, the determination unit determines the difference between the break time and the generation time associated with the break time based on the reference value for each break time stored in the storage unit.

  According to the moving image generating apparatus of the present invention, since the generation time is determined based on a predetermined reference value, an improvement in processing speed can be expected as compared with the case where the generation time is determined based on a random number.

  In order to achieve the above object, a game apparatus according to another aspect of the present invention includes a reception unit, a determination unit, and a display unit, and is configured as follows.

  First, the reception unit receives an instruction input from a player. For example, a player can operate various buttons (such as foot switches that are operated with hands and feet) and levers prepared for the controller of the game device, or a controller member that simulates various musical instruments. These are accepted as instruction inputs by operating or detecting that the player has performed a predetermined action with various sensors.

  Then, the determination unit determines the player's score based on the instruction input received by the reception unit. For example, when the game device is a game device that executes a rhythm game, a score is added when a predetermined button is pressed by the player at a predetermined timing, and the player's score is based on the score within a predetermined period. Determined.

  The display unit displays the moving image generated by the above-described moving image generating device. Therefore, the display unit displays a character that performs an action according to a predetermined choreography.

  Here, in a game device that executes a rhythm game, a plurality of characters that perform actions according to a predetermined choreography in accordance with the rhythm of the music as a back dancer are often displayed on the display unit. In such a game device, when these multiple characters are displayed so as to execute exactly the same choreography at exactly the same operation speed, there is a case where the player lacks reality and gives the player an impression that it is a game. . Therefore, by applying the present invention to such a game device, the movement speed of the displayed character can be made to fluctuate, and it is possible to produce as if the player is dancing with a real back dancer. it can.

  In the present invention, the determination unit determines a difference between the separation time and the generation time associated with the separation time based on the random number, and determines a range that the random number can take according to the determined player's performance. Can be changed. Here, for example, when the range that the random number can take is set wide, the expected value of the difference between the break time and the generation time associated with the break time becomes large. Therefore, the variation in the speed of the movement during the movement according to the choreography of the displayed character is increased. For this reason, the motion fluctuation of the displayed character increases. On the other hand, for example, when the range that the random number can take is set narrow, the expected value of the difference between the break time and the generation time associated with the break time becomes small. Therefore, the variation in the speed of the movement during the movement according to the choreography of the displayed character is reduced. For this reason, the motion fluctuation of the displayed character is reduced.

  It should be noted that how the range of random numbers can be changed according to the player's performance can be adjusted as appropriate.For example, in the case of a rhythm game, the range of random numbers that the player can perform better Set narrower. In this way, the better the player's performance, the smaller the variation in the speed of the movement during the movement according to the choreography of the displayed character. Therefore, the character that performs the action according to the choreography at an appropriate speed is displayed as the player's score is good.

  According to the game device of the present invention, the magnitude of the motion fluctuation of the displayed character can be changed according to the player's performance. Thereby, it can produce as if the player is dancing with a real back dancer.

  In order to achieve the above object, a moving image generation method according to another aspect of the present invention is a moving image generation method executed by a moving image generation apparatus including a shape calculation unit, a determination unit, and a generation unit, and includes a shape calculation A process, a determination process, and a generation process are provided and configured as follows.

  That is, in the shape calculation process, when any time included in the predetermined period is given, the shape calculation unit calculates the shape of the character associated with the time.

  In the determining step, the determining unit determines a generation time associated with each of the delimiter times that divide the predetermined period from the beginning to the end at equal intervals.

  Further, in the generation step, the generation unit gives a generation time associated with each of the break times to the shape calculation unit to calculate, and generates an image of a character to be displayed at the break time from the calculated character shape To do.

  Here, the start time of the start time and the generation time associated with the start time are set to be equal to the start time of the predetermined period. In addition, the end time of the end of the end times and the generation time associated with the end time of the end are set to be equal to the end time of the predetermined period. Furthermore, when the break times are arranged in the order of passage of time and the generation times associated with the break times are arranged in that order, the order of passage of time is set.

A program according to another aspect of the present invention is configured to cause a computer to function as each unit of the moving image generation device or the game device, or to cause the computer to execute each step of the moving image generation method. .
The program of the present invention can be recorded on a computer-readable information recording medium such as a compact disk, flexible disk, hard disk, magneto-optical disk, digital video disk, magnetic tape, and semiconductor memory. The above program can be distributed and sold via a computer communication network independently of the computer on which the program is executed. The information recording medium can be distributed and sold independently of the computer.

  According to the present invention, it is possible to provide a moving image generating device, a game device, a moving image generating method, and a program for realizing these with a computer, which are suitable for displaying characters appropriately.

It is a schematic diagram which shows schematic structure of the typical information processing apparatus with which the game device which concerns on 1st-3rd embodiment is implement | achieved. It is a block diagram which shows the structure of the game device which concerns on 1st-3rd embodiment. It is a figure for demonstrating the display screen of the game device which concerns on 1st-3rd embodiment. It is explanatory drawing which shows the mode of the data memorize | stored in RAM. It is a figure for demonstrating the production | generation time determined by the game device which concerns on 1st Embodiment. It is a 1st figure for demonstrating operation | movement of each character. It is a 2nd figure for demonstrating operation | movement of each character. It is a flowchart which shows the character display control process which the game device which concerns on 1st-3rd embodiment performs. It is a flowchart which shows the production | generation time determination process which the game device which concerns on 1st Embodiment performs. It is a figure for demonstrating the production | generation time determined by the game device which concerns on 2nd Embodiment. It is a flowchart which shows the production | generation time determination process which the game device which concerns on 2nd Embodiment performs. It is a figure for demonstrating the production | generation time determined by the game device which concerns on 3rd Embodiment. It is a flowchart which shows the production | generation time determination process which the game device which concerns on 3rd Embodiment performs.

  Embodiments of the present invention will be described below. In the following, for ease of understanding, an embodiment in which the present invention is applied to an information processing apparatus dedicated to a game will be described. However, in various information processing apparatuses such as various computers, PDAs (Personal Data Assistants), and mobile phones Similarly, the present invention can be applied. That is, the embodiment described below is for explanation, and does not limit the scope of the present invention. Therefore, those skilled in the art can employ embodiments in which each or all of these elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

(First embodiment)
(Description of information processing device)
FIG. 1 is a schematic diagram showing a schematic configuration of a typical information processing device in which the game device according to the first embodiment of the present invention is realized. The game device according to the present embodiment has a function as a moving image generation device, and the player displays a predetermined character on the monitor while playing the game.

  The information processing apparatus 100 includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, an interface 104, a mat type controller 105, an external memory 106, and image processing. Unit 107, DVD (Digital Versatile Disk) -ROM drive 108, NIC (Network Interface Card) 109, audio processing unit 110, RTC (Real Time Clock) 111, and monitor 112.

  A DVD-ROM storing a game program and data is loaded into the DVD-ROM drive 108 and the information processing apparatus 100 is turned on to execute the program, thereby realizing the game apparatus of the present embodiment. .

  The CPU 101 controls the overall operation of the information processing apparatus 100 and is connected to each component to exchange control signals and data. The CPU 101 acquires various types of data from each component, processes the various types of data by various calculations, and provides the data to each component as data and control signals. In the CPU 101, various types of data are temporarily stored in a cache included in the CPU 101, and are further acquired in a register included in the CPU 101, and then various calculations are performed.

  The ROM 102 stores an IPL (Initial Program Loader) that is executed immediately after the power is turned on, and when this is executed, the program recorded on the DVD-ROM is read out to the RAM 103 and execution by the CPU 101 is started. The The ROM 102 stores an operating system program and various data necessary for operation control of the entire information processing apparatus 100.

  The RAM 103 is for temporarily storing data and programs, and holds programs and data read from the DVD-ROM and other data necessary for game progress and communication. In addition, various information transmitted from various devices connected to the information processing apparatus 100 and various information to be transmitted to various devices are also temporarily stored.

  The mat type controller 105 connected via the interface 104 receives an operation input performed when the player executes the game. In a predetermined area of the mat-type controller 105, buttons for receiving inputs indicating “left”, “down”, “up”, and “right” from the player are arranged. The player can press each button at an arbitrary timing. Note that the CPU 101 determines, for each button, whether or not the player has pressed the button.

  In the present embodiment, the mat-type controller 105 is described as including four buttons, but the number of buttons is not limited to four, and may be three or less or five or more. Further, the mat-type controller 105 is not limited to the shape arranged on the floor surface, and may be a so-called touch pad shape operated by holding it by a hand or a shape gripped by a hand.

  In the external memory 106 detachably connected via the interface 104, data indicating the progress of the game is stored in a rewritable manner. The player can record these data in the external memory 106 as appropriate, for example, by inputting an instruction via the mat type controller 105.

  A DVD-ROM mounted on the DVD-ROM drive 108 stores a program for realizing the game and image data and audio data associated with the game. Under the control of the CPU 101, the DVD-ROM drive 108 performs a reading process on the DVD-ROM loaded therein, reads out necessary programs and data, and these are temporarily stored in the RAM 103 or the like.

  The image processing unit 107 processes the data read from the DVD-ROM by an image arithmetic processor (not shown) included in the CPU 101 or the image processing unit 107, and then processes the processed data on a frame memory ( (Not shown). The image information recorded in the frame memory is converted into a video signal at a predetermined synchronization timing, and is output to the monitor 112 connected to the image processing unit 107. Thereby, various image displays are possible.

  The image calculation processor can execute a two-dimensional image overlay calculation, a transmission calculation such as α blending, and various saturation calculations at high speed. In addition, the polygon information arranged in the virtual three-dimensional space and added with various kinds of texture information is rendered by the Z buffer method, and a rendered image is obtained by overlooking the polygon arranged in the virtual three-dimensional space from a predetermined viewpoint position. High speed execution of the obtained operation is also possible. In particular, a function for calculating the degree to which a polygon is illuminated by a typical (positive) light source such as a point light source, a parallel light source, or a cone light source is made into a library or hardware so that it can be calculated at high speed.

  Further, the CPU 101 and the image arithmetic processor cooperate to draw a character string as a two-dimensional image in the frame memory or draw it on the surface of each polygon according to the font information that defines the character shape. Is possible. The font information is recorded in the ROM 102, but it is also possible to use dedicated font information recorded in the DVD-ROM.

  The NIC 109 is used to connect the information processing apparatus 100 to a computer communication network (not shown) such as the Internet, and is a 10BASE-T / 100BASE-T standard used when configuring a LAN (Local Area Network). Or an analog modem for connecting to the Internet using a telephone line, an ISDN (Integrated Services Digital Network) modem, an ADSL (Asymmetric Digital Subscriber Modem) modem, or a cable television line for connecting to the Internet. Cable modems and the like, and an interface (not shown) for interfacing these with the CPU 101.

  The audio processing unit 110 converts audio data read from the DVD-ROM into an analog audio signal and outputs the analog audio signal from a speaker (not shown) connected thereto. Further, under the control of the CPU 101, sound effects and music data to be generated during the progress of the game are generated, and sound corresponding to this is output from the speaker. From the audio processing unit 110, for example, the sound of music reproduced as BGM or karaoke, or the sound effect reproduced in accordance with the button operation of the player is converted.

  The RTC 111 is a time measuring device including a crystal resonator and an oscillation circuit. The RTC 111 is supplied with power from the built-in battery and continues to operate even when the information processing apparatus 100 is powered off.

  The monitor 112 displays an image according to the video signal supplied from the image processing unit 107. The monitor 112 is configured by, for example, a liquid crystal display, a plasma display, a CRT, or the like.

  In addition, the information processing apparatus 100 uses a large-capacity external storage device such as a hard disk so as to perform the same function as the ROM 102, the RAM 103, the external memory 106, the DVD-ROM mounted on the DVD-ROM drive 108, and the like. You may comprise.

(Description of game device)
Next, functions of the game device according to the embodiment of the present invention will be described with reference to the drawings. First, the configuration of the game device 200 according to the embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 2, the game device 200 includes a shape calculation unit 201, a determination unit 202, a generation unit 203, a reception unit 204, a determination unit 205, and a display unit 206.

  The shape calculation unit 201 calculates the shape at each time of the character performing a predetermined choreography within a predetermined period in the virtual space. Here, the start time of the predetermined period is time B, the end time of the predetermined period is time E, and any time included in the predetermined period is time t. Specifically, when any time t included in a predetermined period from time B to time E is given, the shape calculation unit 201 calculates the shape of the character associated with the time t. The shape calculation unit 201 is realized by the CPU 101 or the like.

  The determination unit 202 determines a generation time associated with each delimiter time that divides the predetermined period from the beginning to the end at equal intervals. Specifically, the determination unit 202 associates each of the delimiter times B = D [0], D [1],..., D [N] = E with N being a natural number and dividing the predetermined period into equal intervals. Generation times G [0], G [1],..., G [N] are determined. Here, the determination unit 202 satisfies G [0] = B and G [N] = E, and each of the integers j = 0, 1,..., N−1 and the integers k = j + 1, j + 2,. For each of N, G [j] is determined to precede G [k]. The determination unit 202 determines a generation time by generating a random number, for example. The determination unit 202 is realized by the CPU 101 or the like.

  The generation unit 203 gives the generation time associated with each separation time to the shape calculation unit 201 to calculate the character shape, and generates an image of the character to be displayed at the separation time from the calculated character shape. To do. That is, the generation unit 203 gives the generation time G [i] associated with the delimiter time D [i] to the shape calculation unit 201 for calculation for each of the integers i = 0, 1,. Then, the generation unit 203 generates an image of the character to be displayed at the separation time D [i] from the calculated character shape. When generating a plurality of character images, the generation unit 203 causes the determination unit 202 to determine a generation time for each character, and gives the generation time for each character to the shape calculation unit 201 to calculate the shape for each character. An image of each character to be displayed at each separation time is generated. The generation unit 203 outputs the generated image as, for example, a video signal indicating the image. The generation unit 203 is realized by the CPU 101, the image processing unit 107, the RTC 111, and the like.

  The accepting unit 204 accepts an instruction input (operation input) from the player. The receiving unit 204 includes, for example, a CPU 101, an interface 104, and a mat type controller 105.

  The determination unit 205 determines the player's score based on the instruction input received by the reception unit 204. The determination unit 205 is configured by the CPU 101, for example.

  The display unit 206 displays the image generated by the generation unit 203. Specifically, the display unit 206 displays an image expressed by the video signal supplied from the generation unit 203. The display unit 206 is configured by the monitor 112, for example.

  Here, an example of the operation of the game apparatus 200 will be briefly described.

  First, the generation unit 203 causes the determination unit 202 to generate a generation time associated with the separation time before the separation time is reached. Then, the determination unit 202 generates a generation time associated with the break time according to the player's score determined by the determination unit 205. Here, the generation unit 203 supplies a signal indicating the generation time generated by the determination unit 202 to the shape calculation unit 201. Then, the shape calculation unit 201 calculates the shape of the character associated with the supplied generation time. Here, the generation unit 203 generates an image of the character to be displayed at the break time based on the character shape calculated by the shape calculation unit 201. Then, the generation unit 203 supplies the generated character image to the display unit 206 at the break time. The display unit 206 displays the supplied image.

  Next, a display screen of the game apparatus 200 according to the present embodiment will be described with reference to FIG. Note that the game apparatus 200 will be described as being applied to a game apparatus that executes a dance game.

  The game device 200 displays various information necessary for the dance game. For example, the game device 200 displays a music list or the like before starting the game, and prompts the player to select a desired music. When the music is selected and the game is started, the game device 200 displays a game screen as shown in FIG. 3, for example.

  In this game screen, still marks 301L, 301D, 301U, and 301R (hereinafter collectively referred to as “static marks 301” as necessary) are fixed images for showing the timing of the stepping action to the player. On the other hand, the targets 302L, 302D, 302U, and 302R (hereinafter collectively referred to as the target 302 as necessary) are images for showing the player the stepping action to be a task, and match the music to be played. For example, the screen is scrolled from the bottom to the top. Then, when the target 302 reaches the stationary mark 301 (when the target 302 overlaps the same image of the stationary mark 301), a score is obtained when the required stepping action is performed by the player.

  Here, in the present embodiment, task data, a music data string, and an audio data string are prepared as data for realizing such processing. These data are stored in advance on a DVD mounted on the DVD-ROM drive 108, for example, and read out to the RAM 103 as necessary.

  The task data will be described in detail with reference to FIG. FIG. 4 is a schematic diagram showing the state of the task data read into the task data area of the RAM 103.

  The assignment data 400 is data corresponding to a score in the music field. In the present embodiment, the assignment data 400 includes a table 401 including a plurality of records 402, a threshold time 411 (this value is assumed to be d), and an end time 421 (this value is assumed to be E). It is data. Each record 402 has an area for recording a task time 403 (this value is T), an operation input type 404, and a target state 405. Each record 402 corresponds to a musical note. The task time 403 is a time until the target 302 reaches the stationary mark 301 from the start of the game, and when the time has elapsed from the start of the game, the player inputs an operation on the target 302 (steps on the button). It is time to indicate what should be done. The task data 400 includes task times 403 corresponding to the number of targets 302. The operation input type 404 is data associated with the task time 403. When the task time 403 corresponding to the operation input type 404 has elapsed since the start of the game, which button of the mat-type controller 105 is selected by the player. Is data indicating whether or not to step on. The target state 405 represents the state of the target 302 by a numerical value. The status of the target 302 is represented by “0” for “unprocessed”, “1” for “success”, and “2” for “failure”. The threshold time 411 is a time that indicates how far the time from when the game starts until the player steps on the button and the task time 403 is considered to have been successful in the operation input. The end time 421 is data indicating the time from the start of the game to the end of the game.

  The task time 403, the threshold time 411, the end time 421, and the like may be expressed numerically in units of ms or the like, or a vertical synchronization interrupt cycle (typically 1/60) that is a display update rate of the screen. (Seconds) as a unit. The song data string is a data string representing a song to be played back as BGM. The audio data string is a data string representing a sound that is emitted when the player steps on the button of the mat type controller 105.

  On the game screen, three characters, that is, the first character 303, the second character 304, and the third character 305 are displayed as back dancers. Each character takes a motion according to the choreography that matches the rhythm of the music. The choreography is predetermined for each music scene. Here, the motion that each character takes becomes closer to each other as the player's score is better. Hereinafter, the motion that the character takes will be described with reference to FIGS.

  First, a method for determining a generation time associated with a break time will be described with reference to FIG. The delimiter times are the times at which the predetermined period is divided at equal intervals. The generation time is a time determined in association with each of the break times, and is generated for each character. Furthermore, the predetermined period is, for example, a period corresponding to one scene. In the following description, N is an arbitrary natural number, separation times are D [0], D [1],..., D [N], and generation times determined for the first character 303 are G1 [0], G1 [ 1],..., G1 [N], the generation time determined for the second character 304 is G2 [0], G2 [1],..., G2 [N], and the generation time determined for the third character 305 is G3. [0], G3 [1],..., G3 [N]. The predetermined period is Tp, the start time of the predetermined period is B, and the end time of the predetermined period is E. Furthermore, an interval between adjacent break times in the time series (hereinafter referred to as “break time”) is Ts. The break time can be set to, for example, a vertical synchronization interrupt period (typically 1/60 second).

  In the example shown in FIG. 5, the delimiter times are D [0] = B, D [1],..., D [6], and are seven times that divide the predetermined period into six periods at equal intervals. FIG. 5 shows an example in which the predetermined period is divided into six periods, but in general, the predetermined period is divided into more periods. For example, when the predetermined period is 5 seconds and the separation time is 1/60 seconds, the predetermined period is divided into 300 sections, and the number of separation times is 301.

  Here, the generation time associated with each separation time is determined according to the player's performance. Although the method for determining the generation time associated with each separation time is arbitrary, it is necessary to satisfy the following restrictions (A) to (C). That is, (A) the first delimiter time among the delimiter times and the generation time associated with the first delimiter time are both equal to the first time in the predetermined period. (B) The end delimiter time among the delimiter times and the generation time associated with the end delimiter time are both equal to the end time of the predetermined period. (C) When the separation times are arranged in the order of passage of time and the generation times associated with the separation times are arranged in that order, the order of passage of time is obtained.

  In the example illustrated in FIG. 5, D [0] = G1 [0] = G2 [0] = G3 [0] = B in order to satisfy the constraint (A). Further, in order to satisfy the restriction (B), D [6] = G1 [6] = G2 [6] = G3 [6] = E. Furthermore, in order to satisfy the constraint of (C), let j and k be arbitrary integers, j = 0, 1,..., 5 and integers k = j + 1, j + 2,. [J] precedes G1 [k], G2 [j] precedes G2 [k], and G3 [j] precedes G3 [k].

  The generation time is determined for each character. First, the generation time determined for the first character 303, that is, G1 [0], G1 [1],..., G1 [6] will be described. In this specification, an inequality sign is used on the assumption that the earlier the time, the smaller the value.

  In the present embodiment, G1 [0], G1 [1],..., G1 [6] are determined in order from the earliest time using random numbers. First, G1 [0] = D [0] is determined. Next, G1 [1] to G1 [5] are determined using random numbers. Specifically, first, a random number generation range is determined according to the player's performance. Here, if the random number to be generated is R and the fluctuation range of the random number is Rmax (where Rmax is a positive number), the random number generation range is −Rmax ≦ R ≦ Rmax. Here, the better the player's result, the smaller the random amplitude swing is set. The random number is handled as a numerical value in units of time (for example, milliseconds). Then, a time that has elapsed from the break time by the time indicated by the random number is determined as a generation time candidate. If the determined generation time candidate does not satisfy the above-mentioned restriction (C), a random number is acquired again and the generation time candidate is determined again. Until the determined generation time candidate satisfies the above-described restriction (C), the process of acquiring the random number and determining the generation time candidate is repeated. On the other hand, when the determined generation time candidate satisfies the above-described restriction (C), the generation time candidate is set as the generation time.

  For example, for G1 [1], R1 is first acquired in the range of −Rmax ≦ R1 ≦ Rmax. Next, D [1] + R1 is determined as a candidate for G1 [1]. Here, if any of D [1] + R1 ≧ D [0] and D [1] + R1 ≦ D [6] is not satisfied, R1 is acquired again and D [1] + R1 is determined again. The process of acquiring R1 and determining D [1] + R1 is repeated until both D [1] + R1 ≧ D [0] and D [1] + R1 ≦ D [6] are satisfied. On the other hand, when both D [1] + R1 ≧ D [0] and D [1] + R1 ≦ D [6] are satisfied, D [1] + R1 is determined as G1 [1].

  When G1 [1] is determined, G1 [2] is determined by the same method. That is, first, R2 is acquired in the range of −Rmax ≦ R2 ≦ Rmax. Next, D [2] + R2 is determined as a candidate for G1 [2]. Here, when either of D [2] + R2 ≧ D [1] and D [2] + R2 ≦ D [6] is not satisfied, R2 is acquired again and D [2] + R2 is determined again. Then, until both D [2] + R2 ≧ D [1] and D [2] + R2 ≦ D [6] are satisfied, the process of acquiring R2 and determining D [2] + R2 is repeated. On the other hand, when both D [2] + R2 ≧ D [1] and D [2] + R2 ≦ D [6] are satisfied, D [2] + R2 is determined as G1 [2].

  Similarly, G1 [3] to G1 [5] are determined. Then, G1 [6] = D [6] is determined. The generation time is similarly determined for the second character 304 and the third character 305. The generation time determined in this way is usually a time different from the associated separation time, and is different for each character.

  Next, with reference to FIG. 6, what kind of motion each character takes will be described. FIG. 6 shows how each character is displayed at each delimiter time, that is, D [0] = B, D [1],..., D [6]. FIG. 6 also shows how the exemplary character 500 is displayed at each break time. The exemplary character 500 is a character that takes a motion according to the choreography that matches the rhythm of the music at an exemplary speed. Each character takes a motion at the same exemplary speed as the exemplary character 500 when the separation time and the generation time associated with the separation time all match.

  In the example shown in FIG. 6, the model character 500 stands up at D [0], raises the left hand toward D [1], and raises the right hand toward D [2] in a predetermined period. Raise your left foot toward D [3], lower your left hand toward D [4], lower your right hand toward D [5], and lower your left foot toward D [6] Take the motion of lowering. Here, the generation time determined for the first character 303 in association with the break time is determined to be a time different from the break time. The method for determining the generation time associated with the break time is arbitrary, but can be determined based on, for example, a random number generated by a random number generator. Specifically, the generation time is determined so that the difference between the break time and the generation time associated with the break time becomes the time indicated by the random number generated by the random number generator. Here, when the random number is 0, the random number is generated again so that the random number becomes a value other than 0. As a result, the generation time associated with the break time is determined to be different from the break time. Accordingly, the first character 303 takes a motion to perform each action at a timing different from that of the model character 500. Specifically, the first character 303 takes each motion at a timing earlier or later than the model character 500. However, the first character 303 takes a motion at the same timing as the exemplary character 500 at the start time of the predetermined period and the end time of the predetermined period.

  Similarly, the second character 304 and the third character 305 also take each motion at a different timing from the model character 500. Since the generation time is determined for each character, each character takes each motion at a timing different from that of other characters. Therefore, three characters that take each motion at different timings are displayed on the display screen. In addition, the generation time associated with the break time is determined to be closer to the break time in time series as the player's score is better. For this reason, the better the player's performance, the smaller the variation in timing of taking the motions of the three characters.

  Here, with reference to FIG. 7, what kind of motion each character takes at each separation time will be described.

  For example, the first character 303 takes the same action at D [0] as that taken by the exemplary character 500 at G1 [0] = D [0]. Then, in D [1], the first character 303 takes the same action as that of the model character 500 in G1 [1] determined in association with D [1]. Here, since G1 [1]> D [1], the first character 303 takes an action that precedes the model character 500 at the time of D [1]. Then, in D [2], the first character 303 takes the same action as the action taken by the model character 500 in G1 [2] determined in association with D [2]. Here, since G1 [2]> D [2], the first character 303 takes an action ahead of the model character 500 even at the time of D [2].

  Further, for example, the second character 304 takes the same action as the action taken by the model character 500 in G [0] = D [0] in D [0]. Then, in D [1], the second character 304 takes the same action as that of the model character 500 in G2 [1] determined in association with D [1]. Here, since G2 [1]> D [1], the second character 304 takes an action that precedes the model character 500 at the time of D [1]. Then, in D [2], the second character 304 takes the same action as that of the model character 500 in G2 [2] determined in association with D [2]. Here, since G2 [2] <D [2], at the time of D [2], the second character 304 takes a later action than the model character 500.

  As described above, each character takes a different action from the model character and other characters at each break time.

  Next, the operation of the game device 200 according to the present embodiment will be described with reference to FIGS. FIG. 8 is a flowchart showing a character display control process executed by the game device 200 according to the present embodiment. FIG. 9 is a flowchart showing generation time determination processing executed by the game device 200 according to this embodiment.

  The initial value of the assignment data 500 is stored in a DVD-ROM attached to the DVD-ROM drive 108, but when the game is started, the CPU 101 transfers the assignment data 400 from the DVD-ROM to a predetermined RAM 103. It is read and initialized in the assignment data area (step S101). Further, the CPU 101 determines the generation time associated with the break time in the first scene after the game starts as the break time.

  Next, the CPU 101 instructs the voice processing unit 110 to start playback of the BGM associated with the task data (step S102). A BGM audio data string is recorded in a DVD-ROM in a PCM (Pulse Code Modulation) format, an MP3 (MPEG Layer 3) format, an Ogg Volbis format, a MIDI (Musical Instrument Digital Interface) format, or the like.

  Then, the CPU 101 confirms whether or not there is an operation input (step S103). Specifically, the CPU 101 checks the state of pressing operation of each button of the mat type controller 105. If there is a button that has started to be pressed, an instruction may be issued to the audio processing unit 110 so as to reproduce an audio data string that represents audio indicating that the button has been pressed. As the audio data string, the various audio data strings as described above can be used, but it is desirable to read them into the RAM 103 in advance in order to increase the processing speed. In addition, a format with a small amount of data such as a MIDI format can be used as a storage format for these audio data strings.

  Next, the CPU 101 determines an operation input (step S104). Specifically, the CPU 101 determines whether there is a successful operation input and whether there is a failed operation input based on the task time 403, the operation input type 404, and the threshold time 411. Determine. That is, the CPU 101 confirms whether a button to be pressed at the break time (the time at which the vertical synchronization interrupt is made) is pushed, and whether a button that should not be pushed at the break time is pressed. When there is a successful operation input, the CPU 101 adds a score.

  Then, the CPU 101 acquires the character shape (step S105). Specifically, the CPU 101 calculates the character shape based on the generation time determined in step S108 (in the first scene after the game starts, the generation time (separation time) determined in step S101). . The choreography is predetermined for each scene. Therefore, when the generation time associated with the break time in the scene is determined, the character shape at the break time is also determined. The CPU 101 obtains the character shape displayed at the separation time for each character.

  Next, the CPU 101 displays a character (step S106). Specifically, the CPU 101 controls the image processing unit 107 to generate a video signal for displaying each character in the shape of the character acquired in step S105, and supplies the generated video signal to the monitor 112.

  Then, the CPU 101 determines whether or not the current break time is the last break time included in the current scene, that is, whether or not the current scene has ended (step S107). If the CPU 101 determines that the current scene has not ended (step S107: NO), the CPU 101 proceeds to a process of waiting until the next break time (step S109). On the other hand, when the CPU 101 determines that the current scene has ended (step S107: YES), the CPU 101 proceeds to a generation time determination process (step S108).

  The generation time determination process will be described in detail with reference to the flowchart shown in FIG.

  First, the CPU 101 obtains the player's score in the current scene (step S201). Typically, out of the points added based on the determination result of the operation input made in step S104, the score added in the current scene is acquired.

  Next, the CPU 101 sets a random number generation range according to the player's score obtained in step S201 (step S202). Here, the random number generation range is set to be narrower as the player's score is better.

  Then, the CPU 101 selects one character from the three characters of the first character 303, the second character 304, and the third character 305 (step S203).

  Next, the CPU 101 selects one separation time (step S204). For example, the CPU 101 selects the break times in order from the earliest time.

  Then, the CPU 101 determines whether or not the break time selected in step S204 is the break time at the beginning or end of the scene (step S205). If the CPU 101 determines that the break time selected in step S204 is the start or end break time of the scene (step S205: YES), the CPU 101 determines the break time as a generation time associated with the break time (step S205). S206).

  On the other hand, if the CPU 101 determines that the break time selected in step S204 is neither the start time nor the end time of the scene (step S205: NO), it generates a random number within the range set in step S202. A random number is acquired (step S207).

  After completing the acquisition of random numbers (step S207), the CPU 101 determines a generation time candidate to be associated with the separation time selected in step S204 (step S208). Specifically, the CPU 101 determines, as a generation time candidate, a time that has elapsed for the time indicated by the random number acquired in step S207 from the break time selected in step S204. When the random number is a negative value, the generation time candidate is earlier than the break time.

  Next, the CPU 101 determines whether or not the generation time candidate determined in step S208 satisfies the constraint condition (step S209). When determining that the generation time candidate satisfies the constraint condition (step S209: YES), the CPU 101 determines the generation time candidate as the generation time (step S210). On the other hand, when the CPU 101 determines that the generation time candidate does not satisfy the constraint condition (step S209: NO), the CPU 101 returns the process to the process of acquiring a random number (step S207).

  When the CPU 101 finishes the process of determining the separation time as the generation time (step S206) or the process of determining the generation time candidates as the generation time (step S210), the CPU 101 determines whether all the separation times have been selected. It discriminate | determines (step S211). When the CPU 101 determines that any separation time has not been selected (step S211: NO), the CPU 101 returns the processing to the processing for selecting the separation time (step S204). On the other hand, when determining that all the break times have been selected (step S211: YES), the CPU 101 determines whether all characters have been selected (step S212). If the CPU 101 determines that any character has not been selected (step S212: NO), the CPU 101 returns the processing to the character selection processing (step S203). On the other hand, if the CPU 101 determines that all characters have been selected (step S212: YES), the generation time determination process ends.

  When the CPU 101 determines that the scene is not finished (step S107: NO) or finishes the generation time determination process (step S108), it waits for the next break time, that is, the next vertical synchronization (step S109). Other processing may be executed during this standby. Then, the CPU 101 determines whether it is the game end time (step S110). Whether or not it is the game end time can be determined whether or not the elapsed time from the start of the game exceeds the game time included in the task data 400. If the CPU 101 determines that it is the game end time (step S110: YES), it ends the character display control process. On the other hand, when the CPU 101 determines that it is not the game end time (step S110: NO), the CPU 101 returns the process to the process for confirming whether or not there is an operation input (step S103).

  According to the game device according to the present embodiment, the speed of the action during the action according to the choreography can be changed for each character without changing the total time for executing the action according to the choreography. As a result, each character is displayed to complete in the scene while fast-forwarding playback at one timing in the scene and slow playback at another timing in the scene. The Note that the timing for fast-forward playback or slow playback differs for each character. Accordingly, a moving image in which each character performs an action according to choreography at each reproduction speed is displayed. And the better the player's performance, the less the variation in the timing of executing each action. As a result, the better the player's score, that is, the better the player performs the dance step, the more the character as a back dancer performs the actions according to the choreography, and the worse the player's score, Each character can be displayed such that the more the player performs the dance step, the more the character as the back dancer performs the actions according to the choreography.

(Second Embodiment)
In the first embodiment, an example is shown in which a random number is generated each time in order to determine one generation time. However, according to the present invention, a representative delimiter time (hereinafter referred to as “representative time”) is selected from all delimiter times, and only a generation time associated with the representative time is determined by generating a random number. The generation time associated with the delimiter time may be determined so as to complement the generation time associated with the representative time. Hereinafter, the game device according to the second embodiment will be described. However, the configuration of the game device according to the second embodiment is the same as the configuration of the game device according to the first embodiment, and thus description thereof will be omitted.

  First, a method for determining the generation time will be described with reference to FIG. Hereinafter, although the method for determining the generation time for the first character 303 will be described, the generation time is also determined for the other characters by the same method. In the example shown in FIG. 10, the delimiter times are D [0] = B, D [1],..., D [30] = E, and are 31 times that divide the predetermined period into 30 periods. Here, the generation times of the first character 303 associated with D [0], D [1],..., D [30] are G1 [0], G1 [1],.

  Here, a plurality of representative times are selected from all the separation times so that the intervals between the representative times adjacent on the time series are equal. In the example shown in FIG. 10, D [0], D [10], D [20], and D [30] are selected every 9th from all the delimiter times so as to include the delimiter times at the beginning and the end. These four break times are representative times.

  First, G1 [0], G1 [10], and G1 [20], which are generation times associated with the selected representative times D [0], D [10], D [20], and D [30], respectively. , G1 [30] is determined. Specifically, first, G1 [0] = D [0] is determined. Next, G1 [10] and G1 [20] are determined using random numbers. Specifically, first, a random number generation range is determined according to the player's performance. Here, the better the player's performance, the narrower the random number swing is set. However, in this embodiment, the amplitude of the random number is set so that the generation time determined using the random number always satisfies the constraint condition. That is, even if the player's performance is the worst, the random number swing is set to be 1/6 or less of the predetermined period. Then, the generation time is determined as the time elapsed from the representative time by the time indicated by the random number.

  For example, for G1 [10], when R3 is acquired in the range of −Rmax ≦ R3 ≦ Rmax, D [10] + R3 is determined as G1 [10]. Similarly, for G1 [20], when R4 is acquired in the range of −Rmax ≦ R4 ≦ Rmax, D [20] + R4 is determined as G1 [20].

  Then, a generation time associated with a break time other than the representative time is determined. The generation time associated with a separation time other than the representative time is determined as a time at which the generation times associated with the representative time are separated at equal intervals. Specifically, each of the times for dividing the time from G1 [0] to G1 [10] into 10 equal parts is set to G1 [1] to G1 [9]. Similarly, each of the times for dividing the time from G1 [10] to G1 [20] into 10 equal parts is set to G1 [11] to G1 [19]. Similarly, each of the times for dividing the time from G1 [20] to G1 [30] into 10 equal parts is set to G1 [21] to G1 [29].

  Next, the operation of the game device 200 according to the present embodiment will be described. The character display control process executed by the game device 200 according to this embodiment is the same as that of the first embodiment except for the generation time determination process. Therefore, hereinafter, the generation time determination process executed by the game device 200 according to the present embodiment will be described with reference to FIG.

  First, the CPU 101 obtains the player's score in the current scene (step S301). Next, the CPU 101 sets a random number generation range according to the player's score obtained in step S301 (step S302). Then, the CPU 101 selects one character from the three characters of the first character 303, the second character 304, and the third character 305 (step S303).

  Next, the CPU 101 selects one representative time of the separation time (step S304). In the present embodiment, the CPU 101 selects representative times in order from an earlier time.

  Then, the CPU 101 determines whether or not the representative time selected in step S304 is the start time or end time of the scene (step S305). If the CPU 101 determines that the representative time selected in step S304 is the start or end break time of the scene (step S305: YES), the CPU 101 sets the representative time to the generation time associated with the break time that is the representative time. Determine (step S306).

  On the other hand, if the CPU 101 determines that the representative time selected in step S304 is neither the start time nor the end time of the scene (step S305: NO), it generates a random number within the range set in step S302. A random number is acquired (step S307).

  When the CPU 101 ends the acquisition of the random number (step S307), the CPU 101 determines a generation time associated with the break time that is the representative time selected in step S304 (step S308). Specifically, the CPU 101 determines, as the generation time associated with the separation time, the time elapsed by the time indicated by the random number acquired in step S307 from the representative time selected in step S304.

  When the CPU 101 finishes the process of determining the representative time as the generation time (step S306) or the process of determining the generation time (step S308), the CPU 101 determines whether all the representative times have been selected (step S309). ). If the CPU 101 determines that any one of the representative times has not been selected (step S309: NO), the CPU 101 returns the process to the process for selecting the delimiter time (step S304). On the other hand, if the CPU 101 determines that all the representative times have been selected (step S309: YES), the CPU 101 determines a generation time to be associated with the separator time between the representative times (step S310).

  Specifically, the CPU 101 sets the time between generation times associated with each of two adjacent representative times when the representative times are arranged in time series (exists between the two adjacent representative times). Each of the times divided at equal intervals to the number of separation times + 1) is determined as a generation time associated with each of the separation times existing between the two adjacent representative times. When the CPU 101 finishes the process of determining the generation time associated with the separation time between the representative times (step S310), it determines whether or not all characters have been selected (step S311). If the CPU 101 determines that any character has not been selected (step S311: NO), it returns the process to the character selection process (step S303). On the other hand, if the CPU 101 determines that all characters have been selected (step S311: YES), the generation time determination process ends.

  According to the game device 200 according to the present embodiment, the generation time is determined using a random number only for the representative time, and the interval between the generation times associated with the representative time is complemented for the break times other than the representative time. A generation time is determined. Thereby, the motion of the displayed character becomes smooth. Further, according to such a configuration, the constraint condition is satisfied even if the random number generation range is increased to some extent. Furthermore, since it is possible to determine whether or not the constraint condition is satisfied and to generate a random number again, it is possible to reduce the processing time.

(Third embodiment)
In the first and second embodiments, the generation time is determined using a random number. However, a table in which the separation time is associated with the shift amount of the generation time associated with the separation time from the separation time is prepared in advance. In addition, the generation time may be determined using the table. Hereinafter, although the game device 200 according to the third embodiment will be described, the configuration of the game device 200 according to the third embodiment is the same as the configuration of the game device 200 according to the first and second embodiments. Therefore, explanation is omitted.

  First, a method for determining the generation time will be described with reference to FIG. Hereinafter, although the method for determining the generation time for the first character 303 will be described, the generation time is also determined for the other characters by the same method. In the example shown in FIG. 12, the delimiter times are D [0] = B, D [1],..., D [8] = E, and are nine times that delimit a predetermined period into eight periods. Here, it is assumed that the generation times associated with each of D [0], D [1],..., D [8] for the first character 303 are G1 [0], G1 [1],.

  Here, the generation time is determined based on a table that is stored in advance in the external memory 106 or the like and that associates the break time with the shift amount of the generation time associated with the break time from the break time. The shift amount is an amount indicating a difference time between the break time and the generation time associated with the break time. In this table, both the shift amount associated with the leading break time and the shift amount associated with the trailing break time are both 0, so that the shift amount gradually changes as the break time changes. It is desirable that the separation time and the shift amount are associated with each other. This table may store a discrete value of the variable and a discrete value of the function in association with each other so that the shift amount associated with the separation time becomes a value of a predetermined function using the separation time as a variable. . Referring to FIG. 12, an example in which the generation time is determined based on a table in which the shift amount is associated with the break time so that the shift amount associated with the break time becomes a value of a sine function having the break time as a variable. explain.

  In the example illustrated in FIG. 12, the shift amount of G1 [0] associated with D [0] and the shift amount of G1 [8] associated with D [8] are zero. Here, Smax is the amplitude of a sine function. Note that the shift amount of G1 [2] associated with D [2] is the maximum (Smax), and the shift amount of G1 [6] associated with D [6] is the minimum (−Smax).

  Here, the gain of the shift amount is determined according to the player's performance. Specifically, the gain is set to a smaller value as the player's performance is better. Then, a time (shifted time) that has elapsed by a value obtained by multiplying the shift amount associated with the break time by a gain from the break time is determined as the generation time. The shift amount and the gain are set so as to satisfy the above-described constraints.

  Moreover, although a gain common to each character may be used, it is desirable to prepare a separate table for each character. As a result, the better the player's score, the smaller the variation in the timing at which each character performs the action according to the choreography. The worse the player's score, the lesser the action according to the choreography. Are displayed in such a manner that the variation in the timing at which each character is executed increases.

  Next, the operation of the game device 200 according to the present embodiment will be described. The character display control process executed by the game device 200 according to the present embodiment is the same as that of the first and second embodiments except for the generation time determination process. Therefore, hereinafter, the generation time determination process executed by the game device 200 according to the present embodiment will be described with reference to FIG.

  First, the CPU 101 obtains the player's score in the current scene (step S401). Next, the CPU 101 determines the gain of the shift amount according to the player's score obtained in step S401 (step S402). Then, the CPU 101 selects one character from the three characters of the first character 303, the second character 304, and the third character 305 (step S403).

  Next, the CPU 101 reads a table associated with the character from the external memory 106 (step S404). In this table, the delimiter time and the shift amount are stored in association with each other.

  Next, the CPU 101 selects one delimiter time (step S405). For example, the CPU 101 selects the break times in order from the earliest time.

  Then, the CPU 101 determines a generation time associated with the separation time selected in step S405 (step S406). Specifically, the CPU 101 causes the product of the gain determined in step S402 and the shift amount associated with the separation time in the table read in step S404 from the separation time selected in step S405. The generated time is determined to be associated with the separation time.

  When the CPU 101 finishes the process of determining the generation time (step S406), it determines whether or not all separation times have been selected (step S407). If the CPU 101 determines that any separation time has not been selected (step S407: NO), the CPU 101 returns the processing to the processing for selecting the separation time (step S405). On the other hand, if the CPU 101 determines that all the break times have been selected (step S407: YES), it determines whether or not all characters have been selected (step S408). When CPU 101 determines that any character has not been selected (step S408: NO), it returns the process to the process of selecting a character (step S403). On the other hand, if the CPU 101 determines that all the characters have been selected (step S408: YES), the generation time determination process ends.

  According to the game device of the present embodiment, the generation time associated with the break time can be determined as a different generation time for each character without generating a random number. Thereby, an improvement in processing speed can be expected.

(Modification)
The present invention is not limited to the first to third embodiments described above, and various modifications are possible.

  In the first to third embodiments, the degree of variation in motion taken by each character in each scene is changed according to the player's score in the previous scene. However, the degree of motion variation of each character in each scene may be changed according to the player's performance in an arbitrary period after the game starts.

  In the first to third embodiments, the variation in motion taken by each character is changed according to the player's performance, but the motion taken by each character is changed regardless of the player's performance. Also good.

  In the third embodiment, a table that associates a separation time and a shift amount on the time axis from the separation time of the generation time associated with the separation time is stored in the external memory 106 in advance, and is generated using the table. The time was determined. However, the table may be stored in advance in the program. Alternatively, the generation time may be determined using a predetermined function that obtains the shift amount using the break time as a variable without using a table. In this case, a function is adopted in which the generation time associated with the first separation time is determined as the first separation time, and the generation time associated with the last separation time is determined as the last separation time.

  As described above, according to the present invention, it is possible to provide a moving image generation device, a game device, a moving image generation method suitable for appropriately displaying a character, and a program for realizing these by a computer. Can do.

100 Information processing apparatus 101 CPU
102 ROM
103 RAM
104 Interface 105 Mat-type controller 106 External memory 107 Image processor 108 DVD-ROM drive 109 NIC
110 Audio processing unit 111 RTC
112 monitor 200 game device 201 shape calculation unit 202 determination unit 203 generation unit 204 reception unit 205 determination unit 206 display unit 301L, 301D, 301U, 301R stationary mark 302L, 302D, 302U, 302R target 303 first character 304 second character 305 Third character 400 Task data 401 Table 402 Record 403 Task time 404 Type of operation input 405 Target state 411 Threshold time 421 End time 500 Model character

Claims (9)

When any time included in the predetermined period is given, a shape calculation unit that calculates the shape of the character associated with the time,
A determination unit that determines a generation time associated with each of the delimiter times that divide the predetermined period from the beginning to the end at equal intervals;
Moving image generation comprising: a generation unit that generates a character image to be displayed at the separation time from the calculated character shape by causing the shape calculation unit to calculate a generation time associated with each of the separation times A device,
The first break time among the break times and the generation time associated with the first break time are both equal to the first time of the predetermined period,
Of the separation times, the last separation time and the generation time associated with the last separation time are both equal to the last time of the predetermined period,
The moving image generating apparatus according to claim 1, wherein when the separation times are arranged in the order of passage of time, and the generation times associated with the separation times are arranged in that order, the order of passage of time is obtained. The moving image generating apparatus according to claim 1,
The determination unit determines a difference between the separation time and a generation time associated with the separation time based on a random number. The moving image generating apparatus according to claim 1 or 2,
The generation unit generates images of a plurality of characters,
The moving image generating device, wherein the determining unit determines a generation time for each of the plurality of characters. The moving image generating apparatus according to claim 2,
The determining unit selects a predetermined number of delimiter times (hereinafter referred to as “representative time”) from the delimiter times so as to include the first delimiter time and the last delimiter time,
(A) The generation time associated with the first break time among the representative times is determined to be equal to the first break time,
(B) determining that the generation time associated with the last break time among the representative times is equal to the last break time;
(C) A difference between a separation time other than the first separation time and the last separation time in the representative time and a generation time associated with the separation time is determined based on a random number,
(D) determining the generation time associated with the separation time between two representative times adjacent to each other when the representative times are arranged in the order of passage of time so that the intervals of the generation times are equal. A moving image generating apparatus. The moving image generating apparatus according to claim 1,
A storage unit that stores a reference value of a difference between the separation time and a generation time associated with the separation time for each separation time;
The determination unit determines a difference between the separation time and a generation time associated with the separation time based on a reference value for each separation time stored in the storage unit. Image generating device. A reception unit for receiving instruction inputs from players,
A determination unit for determining a score of the player based on the received instruction input;
A game device comprising: a display unit that displays a moving image generated by the moving image generating device according to claim 1. The game device according to claim 6,
The determining unit determines a difference between the separation time and a generation time associated with the separation time based on a random number, and determines a range that the random number can take according to the determined player's performance. A game device characterized by being changed. A moving image generation method executed by a moving image generation apparatus including a shape calculation unit, a determination unit, and a generation unit,
When the shape calculation unit is given any time included in the predetermined period, a shape calculation step of calculating the shape of the character associated with the time,
A determining step in which the determining unit determines a generation time associated with each of the delimiter times for dividing the predetermined period from the beginning to the end at equal intervals;
A generation step in which the generation unit generates a character image to be displayed at the separation time from the calculated character shape by causing the shape calculation unit to calculate the generation time associated with each of the separation times. A moving image generation method comprising:
The first break time among the break times and the generation time associated with the first break time are both equal to the first time of the predetermined period,
Of the separation times, the last separation time and the generation time associated with the last separation time are both equal to the last time of the predetermined period,
The moving image generation method according to claim 1, wherein the separation times are arranged in the order of passage of time, and the generation times associated with the separation times are arranged in that order. Computer
When any time included in the predetermined period is given, a shape calculation unit that calculates the shape of the character associated with the time,
A determination unit that determines a generation time associated with each of the delimiter times that divide the predetermined period from the beginning to the end at equal intervals;
A program that causes a generation time associated with each of the separation times to be given to the shape calculation unit to be calculated, and functions as a generation unit that generates an image of a character to be displayed at the separation time from the calculated character shape. There,
The first break time among the break times and the generation time associated with the first break time are both equal to the first time of the predetermined period,
Of the separation times, the last separation time and the generation time associated with the last separation time are both equal to the last time of the predetermined period,
A program characterized in that when the break times are arranged in the order of passage of time, and the generation times associated with the break times are arranged in that order, the order of passage of time is reached.

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