JP2001325612A - Game reproducing method, recording medium, program and entertainment system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable reproduction from various viewpoints when reproducing the games of various categories. SOLUTION: When reproducing a game, with a present camera view position as a reference, a memory control means 800 successively stores only fixed reproducible areas into a RAM 402. When there occurs instruction entries Ci (i=1, 2...) of a controller during reproduction of the game, a camera view point moving means 802 moves the camera view point of a virtual camera 608 on a prescribed orbit corresponding to the instruction entry Ci among a plurality of predetermined orbits within the fixed reproducible area. The instruction entry Ci of the controller can be interactively performed when reproducing the game.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game reproducing method which is suitably applied to, for example, a reproduction (so-called replay) after a game program is executed by a computer. The present invention also relates to a recording medium storing a program related to the reproducing method, the program, and an entertainment system for executing the reproducing method.

[0002]

2. Description of the Related Art In simulation games such as a game for driving a vehicle such as a car or an airplane, a golf game, or the like, it is possible to reproduce (so-called replay) on the game screen during the game or after the game is over. A recording medium such as a CDROM in which the following program is incorporated is commercially available.

[0003] In this reproduction mode, a player who is a user may be able to further improve his or her own skills, and in many cases, a greater sense of satisfaction can be obtained.

[0004]

However, in the above-mentioned conventional reproduction mode, reproduction is performed only from a fixed viewpoint of one camera in a certain situation, which is predetermined by a program, which is unsatisfactory for the player. ing.

[0005] The present invention has been made in view of such problems, and when playing games of various genres,
It is an object of the present invention to provide a game reproduction method, a recording medium, a program, and an entertainment system that enable reproduction from various viewpoints.

[0006]

SUMMARY OF THE INVENTION A game reproducing method according to the present invention uses a computer capable of executing a game program to reproduce a game in which a camera viewpoint moves in three-dimensional computer graphics, based on a current camera viewpoint position. A holding step of sequentially holding only a certain reproducible area in the memory, and, during the reproduction of the game, in response to a predetermined operation of a controller that sends an instruction to the computer, the camera viewpoint is set within the certain reproducible area. A moving step of moving on a predetermined trajectory (the invention according to claim 1).

In a recording medium according to the present invention, a current camera viewpoint position is set to a value at the time of reproducing a game in which a camera viewpoint moves in three-dimensional computer graphics on a recording medium storing a computer-executable game program. A holding step of sequentially holding only a certain reproducible area in a memory as a reference; and a camera operating in the certain reproducible area in response to a predetermined operation of a controller for sending an instruction to the computer during the reproduction of a game. A program having a moving step of moving the viewpoint on a predetermined trajectory is stored (the invention according to claim 6).

Further, the program of the present invention includes a game program executable by a computer,
A storage step of sequentially storing only a certain reproducible area in a memory based on the current camera viewpoint position during reproduction of a game in which a camera viewpoint moves in three-dimensional computer graphics; and instructing the computer during reproduction of the game. In response to the predetermined operation of the sending controller,
A moving step of moving the camera viewpoint on a predetermined trajectory within the certain reproducible area (the invention according to claim 11).

Further, the entertainment system according to the present invention comprises an entertainment device for executing various programs, a controller for instructing the entertainment device on a user's operation request, and a three-dimensional computer graphics image output from the entertainment device. And a display device for displaying, when the entertainment device reproduces a game in which the camera viewpoint moves in three-dimensional computer graphics, only a certain reproducible area based on the current camera viewpoint position. A memory control unit for sequentially storing the camera viewpoint in a predetermined playable area in response to a predetermined operation of a controller for sending an instruction to the computer during game playback; A camera viewpoint moving means for moving at suprameatal, characterized by having a (invention of claim 12, wherein).

According to the present invention, at the time of reproducing a game, only a certain reproducible area is sequentially stored in the memory with reference to the current camera viewpoint position.
In response to a predetermined operation of the controller, the camera viewpoint is moved on a predetermined trajectory within the fixed reproduction-possible area, so that reproduction from various viewpoints is performed by the camera viewpoint moving on a predetermined trajectory. Becomes possible. Of course, it is also possible to reproduce the whole game. The game genre is not limited to the simulation game, but can be applied to various genres such as an action game, a puzzle game, and an action puzzle game.

Here, to sequentially hold the memory means that the memory is used in a first-in-first-out (FIFO) manner, and when a new part is written, the same amount of the old part is erased (while discarded) by a certain amount. This means that the scene is stored in the memory.

In this case, a plurality of predetermined trajectories are prepared and can be selected by the controller, thereby enabling reproduction from various viewpoint angles.

Further, at the time of a predetermined operation of the controller, the camera as a user is moved by moving the camera viewpoint from the current camera viewpoint position on a predetermined trajectory and returning to the current camera viewpoint position. Start position (playback start time)
Can be easily confirmed.

Further, by compositing and displaying a map specifying the camera viewpoint on the reproduction screen, the player can more accurately confirm the reproduction start position (reproduction start time).

Here, by including the fireworks object in the field of view of the camera, the fireworks can be viewed from various positions.
(Watch).

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a schematic external view of an entertainment system 10 to which an embodiment of the present invention is applied.

This entertainment system 10 comprises:
An entertainment device 12 having a function of executing various programs and the like, and an entertainment device 1
2, a memory card 14 which is a card-type external storage device (external memory) detachably attached to the entertainment device 12, an operation device (controller) 16 detachably attached to the entertainment device 12 by a connector 15, and an entertainment device 12 And a monitor (display) 18, which is a display device such as a television receiver, to which the video and audio signals output from are supplied.

The entertainment device 12 has a shape in which flat rectangular parallelepipeds are stacked, and a front panel includes:
A disk tray 22 that moves back and forth as a disk mounting section on which an optical disk 20 as a recording medium for program data is mounted; a reset switch 24 for arbitrarily resetting a currently executed program and the like; Open button 26 for pulling out
Two insertion ports 30 of the memory card 14 and two controller terminals 32 into which the connector 15 of the controller 16 is inserted are arranged.
8. Video and audio output terminals, AV (audio visua
l) An AV multi-output terminal (not shown) connected to the monitor 18 via a cable is provided.

The entertainment device 12 reads a computer game (video game) program and data from an optical disc 20 which is a recording medium such as a CDROM or DVDROM in which a program or data is recorded, and executes the program to display a character or a character on a monitor 18. In addition to a control function for displaying a scene, various control functions such as a movie reproduction on a DVD (digital video disk), which is another optical disc 20, and a music reproduction on a CDDA (compact disk digital audio), are incorporated. It also has a function of executing a program obtained by communication via a communication network or the like. During execution of the game program, a three-dimensional computer graphics image generated by the entertainment device 12 is displayed on a monitor 18 as a display device.

In this case, the signal from the controller 16 is also processed by one of the above-mentioned control functions of the entertainment device 12, and the content thereof is displayed on the screen of the monitor 18.
For example, it is reflected in the movement of the character, the switching of the scene, and the like.

The controller 16 is provided with first and second operation units 51 and 52 at the center left and right of the upper surface, and third and second operation units 51 and 52 on the side surface.
Fourth operation units 53 and 54 are provided, and a left stick 70 and a right stick 72, each of which is a joystick for performing an analog operation, are provided on the front left and right sides of the upper surface.

The first operation section 51 is, for example, a monitor 18
Is a pressing operation section for giving an action to a character or the like displayed on the screen of the user, the function of which is set by a program or the like recorded on the optical disc 20, and four operations having a function of moving the character or the like up, down, left and right, etc. The keys (also referred to as direction keys) 51a, 51b, 51c, and 51d are provided. The direction key 51a is an up direction key, the direction key 51b is a down direction key, the direction key 51c is a left direction key,
The direction key 51d is also called a right direction key.

The second operation section 52 has four columnar operation buttons 52a, 52b, 52c, 52 for pressing operation.
d, the operation buttons 52a to 52d are provided with identification marks “の”, “「 ”,“ × ”, and“ □ ”at the head, respectively. △ button 52a, ○ button 52b, × button 52
c, □ button 52d.

Each operation button 52 of the second operation section 52
Each of the operation buttons 52a to 52d has its function set by a program or the like recorded on the optical disc 20.
To 2d, for example, a function of moving the left arm, right arm, left foot, and right foot of the character or the like is assigned.

The third and fourth operation units 53 and 54 have substantially the same structure, and are arranged vertically with two operation buttons (also called L1 buttons) 53a for pressing operation and an operation button (L2 button). ) 53b, an operation button (also called R1 button) 54a, and an operation button (also called R2 button) 54b. The functions of the third and fourth operation units 53 and 54 are also set by a program recorded on the optical disc 20, and for example, a function of causing a character to perform a special operation is assigned.

The left stick 70 and the right stick 72
Each is provided with a signal input element such as a variable resistor that can be rotated in a 360 ° direction about the operation axis. The left and right sticks 70 and 72 return to the neutral position by an elastic member (not shown). In this neutral position, the left and right sticks 70 and 72 have the functions of operation buttons (L3 button) 70a and (R3 button) 72a as fifth and sixth operation units for pressing operation, respectively.

By rotating the left and right sticks 70 and 72, for example, a character or the like is moved while rotating, or the speed is varied while moving, and further, an analog movement such as changing a state is performed. It becomes possible to input a command signal that makes it possible.

A direction key 51 constituting the first operation unit 51
a to 51d, operation buttons 5 constituting the second operation unit 52
2a to 52d, L1, L2, R1, and R2 buttons 53a, 53b, and 54 constituting the third and fourth operation units 53 and 54
a, 54b, operation buttons 7 constituting fifth and sixth operation units
As shown in FIG. 2 and FIG. 3, each of the back surfaces of the reference numerals 0 a and 72 a (represented by a manipulator 102) has a mountain-like shape with the center at the top via an insulating elastic body 104. The formed conductive member 106 having elasticity is attached, and a resistor 10 having one end connected to the voltage source Vcc and the other end fixed at a position facing each conductive member 106.
The resistor 110 connected to the resistor 8 is disposed. The resistor 110 is disposed on an insulating substrate 112, and the other end of the fixed resistor 108 is grounded.

In this case, direction keys 51a to 51d, operation buttons 52a to 52d, L1, L2 buttons 53a, 53
b, R1, R2 buttons 54a, 54b, operation button 70
When the a and b (operators 102) are respectively pressed, the conductive member 106 comes into contact with the opposing resistor 110,
The resistance value of the resistor 110 is apparently changed according to the contact area with the conductive member 106 according to the pressing force, and the divided voltage value (analog signal) Va of the resistor 110 and the resistor 108 is changed. The signal changes to a signal input to the A / D converter 114.

As described above, the conductive member 106 and the resistor 11
0 constitutes a pressure-sensitive element.
The electrical resistance value changes according to the pressing force received from 02.

FIG. 2 shows the operation of the pressure-sensitive element as an element for outputting a signal output proportional to the pressing force, and FIG. 3 shows the structure of the main part of the controller 16.

As shown in FIG. 3, the controller 16
MPU (microprocessor unit) 11 as control means
And MPU 118 has C as a control means.
PU 120, ROM 122 interconnected thereto, R
AM124. In addition, the MPU 118
Switch 126 whose operation is controlled by U120 and A / D
And a conversion unit 114. An analog signal (voltage) Va output from the output terminal of the resistor 110 is input to the A / D converter 114 and converted into a digital signal Vd.

The digital signal Vd output from the A / D converter 114 is sent to the entertainment device 12 via the interface 128 provided on the internal board of the controller 16, and the digital signal Vd is used to operate the game character, for example. And so on.

The change in the level of the analog signal Va output from the output terminal of the resistor 110 corresponds to the change in the pressing force received from the operator 102 as described above. A / D
The digital signal Vd output from the conversion unit 114 corresponds to the pressing force of the operation element 102 by the user.
If the operation of the game character is controlled by a digital signal having such a relationship with the pressing operation of the user,
An analog smooth operation can be realized as compared with the control using a binary digital signal of “1” or “0”.

Here, the controller 16 is configured to control the switch 126 via the interface 128 in accordance with a control signal sent from the entertainment apparatus 12 based on a program recorded on the optical disk 20. That is, when the program recorded on the optical disc 20 is executed from the entertainment device 12, the A / D conversion unit 1 according to the content of the program.
14 functions as a means for outputting a multi-valued digital signal Vd having a value of, for example, 0 to 255, or outputs a binarized on-off digital signal Vd having a value "0" and a value "1". A control signal is output to specify whether the function is to be performed. Based on this control signal,
The switch 126 selects and switches the function (binary output or multi-level output) of the A / D converter 114. Therefore, whether to use the binary output or the multi-value output is determined by the program.

In FIG. 1, left and right sticks 70, 72
Can be used by switching between the first and second operation units 51 and 52. The switching is performed by the analog mode switch 74. When the left and right sticks 70 and 72 are selected by the analog mode switch 74, the display 7
6 lights up to indicate the selected state of the left and right sticks 70, 72.

In addition to the above, the controller 16 has a start button (start switch) 78 for instructing the start of a game or the like, a select button (selection switch) 80 for selecting the degree of difficulty of the game at the start of the game, and the like. Is provided.

Next, referring to the block diagram of FIG.
An internal configuration of the entertainment system 10 shown in FIG.

A RAM 402 as a semiconductor memory and a bus 403 are connected to the CPU 401, respectively. A graphic synthesizer (GS) 404 and an input output processor (IOP) 409 are connected to the bus 403. GS404
Includes a RAM 405 including a frame buffer, a Z buffer, a texture memory, and the like, and a rendering engine 406 having a rendering function including a drawing function for a frame buffer in the RAM 405.

The monitor 18 as an external device is connected to the GS 404 thus configured via an encoder 407 for converting a digital RGB signal or the like into an NTSC standard television system.

The IOP 409 has a driver (DRV) 410 for reproducing and decoding data recorded on the optical disc 20, and a sound processor (SP) 41.
2. A memory card 14 as an external memory composed of a flash memory, a controller 16 and a ROM 416 in which an operating system and the like are recorded are connected. The SP 412 is connected to a speaker 414 and a monitor 18 as external devices via an amplifier 413, and supplies an audio signal.

Here, the memory card 14 is, for example, C
This is a card-type external storage device including a PU or a gate array and a flash memory, and is detachable from the entertainment device 12 shown in FIG. In the middle of the game, a program for DVD playback and the like are stored.

The controller 16 is for giving a command (binary command or multi-value command) to the entertainment apparatus 12 by pressing a plurality of mounted buttons. In addition, the driver 410 uses an MPEG (moving pictu
re experts group) has a decoder to decode images encoded according to standards.

Next, how an image is displayed on the monitor 18 by the operation of the controller 16 will be described. It is assumed that object data including polygon vertex data, texture data, and the like recorded on the optical disc 20 is read via the driver 410 and stored in the RAM 402 of the CPU 401.

When an instruction from a player as a user is input to the entertainment apparatus 12 via the controller 16, the CPU 401 calculates the position of the object in three dimensions (3D) and the direction with respect to the viewpoint based on the instruction. I do. Thereby, the polygon vertex data of the object defined by the coordinate values of the three orthogonal axes X, Y, and Z are respectively changed. The polygon vertex data after the change is
It is converted into two-dimensional coordinate data by a perspective transformation process.

The area specified by the two-dimensional coordinates is a so-called polygon. Two-dimensional coordinate data after conversion, Z
The data and the texture data are supplied to the GS 404. The GS 404 performs rendering based on the converted two-dimensional coordinate data and Z data, and performs drawing processing by sequentially writing (drawing) texture data on a RAM 405 (in this case, a frame buffer) as a memory. Note that the texture data to be drawn is stored in the monitor 18 after an image for one frame completed by the drawing process is encoded by the encoder 407.
And displayed as an image on the screen.

The entertainment system 10 of this embodiment is basically configured and operates as described above. Next, the camera movement (camera work) during game reproduction (during replay operation) and The special effects will be described in detail.

FIG. 5 is a flowchart for explaining the camera work (camera movement) at the time of playing the game.

First, in step S1, a game is played by a player. In this case, the CPU 401 reads out a game program (application program) recorded on the optical disc 20 housed in the main body of the entertainment apparatus 12 via the disc tray 22 via the driver 410 and the IOP 409, and reads the game program into the RAM 402 which is a memory. While writing a certain amount of program, the written program is read and executed by the CPU 401. Then, based on the program executed by the CPU 401, the game is advanced by the player operating the controller 16 and sending a command.

FIG. 6 is a map 6 showing a scene in which a game is played.
FIG. As shown in FIG. 6, this scene is a game in which the player captures the fireworks launched in the night city 604 surrounded by the sea 602 by using the controller 16, explodes the fireworks, and opens the fireworks. In the city 604, there are buildings, towers, roads, and the like. Note that fireworks are fired from within the city 604 or the sea 602 (at sea or underwater).

During the execution of the game, the positions of fireworks that have been launched and fireworks that have been burst open (world coordinates);
As shown schematically in FIG. 8 as a fireworks information table 622, the content information such as the type is recorded in a predetermined area in the RAM 402 using, for example, the elapsed time (point) of the stage as a key.

That is, depending on the types of fireworks A to E,
The launch time ti = ta, tb,... (At the time indicated by “中” in the table) in the attribute information and the launch position (also referred to as an injection position) Pi = P1, P
2, ... and the extinction time (in the table, the time point represented by "△") are recorded in advance in the program using the time point as a key.
The time indicated by “x”) is the fireworks information table 62
2 are sequentially recorded.

For example, the fireworks A, B, and C will be described. The firework A is launched at a time point ta at a position P1, bursts at a time point te, and is launched again at a time point tf at a position P2. For fireworks B, time t
At c, it is launched at position P3 and disappears without bursting at time tg. The firework C is launched at the time point tb at the position P4 and bursts at the time point td.
At the position P3 and burst at time tf. Of course, the fireworks can also be programmed to launch the same type before extinction or rupture.

Here, as shown in FIG. 6, a virtual camera 608 is mounted on a virtual moving object 606 with fireworks as a motif, and this virtual camera 608 is moved together with the moving object 606 at a constant speed in the direction of the arrow. , Starting point 610 to ending point 61
By moving along the predetermined route 614 to 2, the fireworks launched in the city 604 by the virtual camera 608, the fireworks that disappear, and the fireworks after the burst are displayed on the screen of the monitor 18 as three-dimensional graphics images. .

During the execution of this game, the virtual camera 608
Viewpoint (called camera viewpoint or camera viewpoint position)
Can rotate 360 ° in the horizontal direction on the path 614, and can also be viewed from above the path 614 in the vertical direction. However, the viewpoint position of the virtual camera 608 during the execution of the game is a viewpoint position determined in advance by a program, and the player cannot arbitrarily move the viewpoint position. The viewpoint position of the virtual camera 608 during the execution of the game is referred to as “normal camera viewpoint or normal camera viewpoint position”.

FIG. 7 shows a three-dimensional graphics color image 620 at the moment when the fireworks 618 are launched. This video 620 includes the map 600 shown in FIG.
(Except for the sea 602) is displayed at the lower right of the screen, but the display and non-display of the map 600 are reversed each time the L2 button 53 is pressed in the controller 16, for example.

By displaying the map 600 on the screen, it is possible to determine the remaining amount of one stage by confirming the position of the moving object 606 on the route 614 during the execution of the game. Note that one stage ends when the moving body 606 moves on the route 614 from the start point 610 to the end point 612. However, if the capture rate of the fireworks launched by the controller 16 is equal to or lower than a predetermined value, the one stage is terminated. It is designed to end on the way. At the time of playing a game, which will be described later, the position of the moving body 606 is the start position and the return position of the camera movement occurrence.

In practice, the IOP 409 is read from the optical disc 20 when the game is executed or when a game to be described later is reproduced.
The CPU 401 stores three-dimensional model data (also simply referred to as three-dimensional data) of world coordinates relating to objects of all scenes on the game via the CPU 401 through the RAM.
In the RAM 402, only a predetermined area on the map 600, in other words, only a reproducible area, is stored in the RAM 402 based on the current viewpoint position of the virtual camera 608 (current camera viewpoint position). They are held sequentially.

Here, to sequentially hold data in the RAM 402 as a memory means that a predetermined portion of the RAM 402 is used as a FIFO, and when a new portion is written, a predetermined amount of three-dimensional data is erased while erasing the same amount of the old portion. Data is stored in RAM 40
2 means to hold.

The three-dimensional model data includes wireframe data of the model, coordinates of polygon vertices constituting the wireframe, colors of polygon vertices, directions of polygons, and the like.

After the end of the execution of the game in step S1, a screen for selecting whether or not to play the game is displayed. When the controller 16 selects the game playback, in step S2, the game playback from the normal camera viewpoint (step S2) is performed. Normal replay is also performed automatically, and, for example, the image 620 shown in FIG. 7 is displayed.

That is, the CPU 401 causes the RAM 40
2 and the fireworks information table 622 described above.
, A display list of a fixed amount is sequentially created in the RAM 402 at the “normal camera viewpoint”, and based on the display list, the GS 404 uses the three-dimensional data recorded in the RAM 402 after the perspective projection conversion to obtain two lists.
A two-dimensional image is generated, supplied to the monitor 18 as a video signal by the encoder 407, and an image is displayed on the monitor 18.

While the game is being played automatically, in step S3, the CPU 401 monitors whether or not a key input of the operator 102 assigned to cause the camera movement has occurred. Specifically, all the operators 102
Among the direction keys 51a to 51a constituting the first operation unit 51
It is monitored whether there is an instruction (instruction input) Ci by an operation input (key input) of 1d or the operation buttons 52a to 52d constituting the second operation unit 52.

If there is no instruction input Ci, the normal replay of step S2 (replay from the "normal camera viewpoint" at the time of game execution) is repeated until the normal replay ends.

On the other hand, among the direction keys 51a to 51d constituting the first operation section 51 and the operation buttons 52a to 52d constituting the second operation section 52, an instruction input Ci () by operating any of the operation elements 102 is provided. If it is determined that Ci = C1), in step S4, the input direction key 51 is input.
a to 51d or a RAM in which a camera movement generation program corresponding to the operation buttons 52a to 52d is a memory.
402.

Next, in step S5, the instruction input Ci
= C1, a program for generating a camera movement read from the RAM 402, which is a memory, is executed by the CPU 401, and in the certain reproducible area, based on the program for generating a camera movement corresponding to the instruction input Ci = C1. Then, the camera viewpoint of the virtual camera 608 is moved on a predetermined trajectory.

Here, the contents of the respective camera movement generating programs corresponding to the direction keys 51a to 51d or the operation buttons 52a to 52d will be schematically described.

FIG. 9 shows a virtual camera 608 which is the content of the camera movement generation program when the O button 52b is pressed.
1 schematically shows a first camera work.

In this case, the virtual camera 608
06 from the current camera viewpoint position (also referred to as the start point) 1 which is the start point, and the emission position Px which is the burst position of the fireworks 624
, While taking a trajectory 626 that rotates counterclockwise as viewed from the camera viewpoint position 1 and returns to the current camera viewpoint position 1 which is the end point while rotating away from the emission position Px of the fireworks 624 during the rotation.

Here, the fireworks 624 are fired from the firework cylinder 625 schematically drawn, burst at the emission position Px, and spread radially around the emission position Px. Note that the virtual camera 608 always keeps the fireworks 6
24 in the direction of the injection position Px. In addition, the current camera viewpoint position 1 as the end point is actually a position that is advanced by the elapsed time as compared with the current camera viewpoint position 1 as the start point. It is also possible to play the game while the moving body 606 is stationary, and in this case, the current camera viewpoint position 1 as the start point and the current camera viewpoint position 1 as the end point are the same position.

FIG. 10 shows a virtual camera 6 which is the content of a program for generating camera movement when the X button 52c is pressed.
08 shows a second camera work.

In this case, the virtual camera 608 advances straight from the camera viewpoint position 1 toward the firework emission position Px, passes through the firework emission position Px, and then rotates clockwise as viewed from the camera viewpoint position 1. And turn 180 degrees. Thereafter, as viewed from the camera viewpoint position 1, after descending backward while turning clockwise by 90 ° in the clockwise direction, it approaches the fireworks 624 emission position Px again. Thereafter, the trajectory 62 further descends backward while turning 90 ° clockwise in the horizontal rotation, and returns to the camera viewpoint position 1, which is the end point.
Take 8. Note that the virtual camera 608 always has the fireworks 624
In the direction of the injection position Px.

FIG. 11 shows a virtual camera 60 which is the content of the camera movement generation program when the □ button 52d is pressed.
8 shows a third camera work according to FIG.

In this case, the virtual camera 608 moves the camera viewpoint position 1 away from the fireworks 624 emission position Px.
The trajectory 630 rotates clockwise as viewed from the camera viewpoint position 1 and returns to the current camera viewpoint position 1 which is the end point while approaching the fireworks 624 emission position Px during the rotation.
Note that the virtual camera 608 always faces the direction of the fired position 624 of the fireworks 624.

FIG. 12 shows a virtual camera 60 which is the content of the camera movement generation program when the △ button 52a is pressed.
8 shows a fourth camera work according to FIG.

In this case, the virtual camera 608 moves from the camera viewpoint position 1 to a position immediately above the firework emission position Px, and then descends to a point symmetrical position from the camera viewpoint position 1 with respect to the firework emission position Px while rotating in a crisp manner. Thereafter, the trajectory 632 is rotated clockwise by 180 ° to return to the current camera viewpoint position 1 which is the end point. Note that the virtual camera 608 always faces the direction of the fired position 624 of the fireworks 624.

FIG. 13 shows a fifth camera work by the virtual camera 608, which is the content of the camera movement generation program when the left direction key 51c is pressed.

In this case, the virtual camera 608 rotates clockwise as viewed from the camera viewpoint position 1 while approaching the firework emission position Px from the camera viewpoint position 1 at an angle as if looking up. During the rotation, while moving away from the firework emission position Px, the trajectory 6 returning to the current camera viewpoint position 1 as the end point
Take 34. The virtual camera 608 always displays the fireworks 62
4 is directed to the direction of the injection position Px.

FIG. 14 shows a sixth camera work by the virtual camera 608, which is the content of the camera movement generation program when the right direction key 51d is pressed.

In this case, the virtual camera 608 rotates counterclockwise as viewed from the camera viewpoint position 1 while separating from the camera viewpoint position 1 at an angle that looks down on the firework emission position Px. A trajectory 6 that returns to the current camera viewpoint position 1 as the end point while approaching the firework emission position Px during the rotation.
Take 36. The virtual camera 608 always displays the fireworks 62
4 is directed to the direction of the injection position Px.

FIG. 15 shows a seventh camera work by the virtual camera 608 which is the content of the camera movement generation program when the upper direction key 51a is pressed.

In this case, the virtual camera 608 takes a trajectory 638 that rotates 360 ° in the vertical direction from the camera viewpoint position 1 and returns to the current camera viewpoint position 1 as the end point. Note that the virtual camera 608 always emits the fireworks 624 at the emission position P.
It faces the direction of x.

FIG. 16 shows an eighth camera work by the virtual camera 608, which is the content of the camera movement generation program when the lower direction key 51b is pressed.

In this case, the virtual camera 608a advances straight from the camera viewpoint position 1 toward the fireworks emission position Px and moves a fixed distance, and then switches to the horizontal virtual camera 608b at the position 2 and rotates clockwise. . Then, after moving a certain distance, the position is switched to the virtual camera 608c overlooking the fireworks emission position Px from above at the position 3,
Further, after moving by a certain distance, the position is switched to the virtual camera 608a that looks up at the firework emission position Px at the position 4 from below. Thereafter, a trajectory 640 from which there is a return to the current camera viewpoint position 1, which is the end point, is taken. The virtual camera 608
a, 608b, and 608c always face the direction of the emission position Px of the fireworks 624.

Next, in step S6, step S5
During the execution of the camera work change at the time of playing the game based on the program called in step, the CPU 401 monitors whether or not a key input of another operation element 102 allocated to generate the camera movement has occurred. Specifically, of all the operators 102, the direction keys 51a to 51d, other than the instruction input Ci = C11 keyed in step S3,
Alternatively, it is monitored whether there is an instruction (instruction input) Ci (Ci = C2) by an operation input (key input) of the operation buttons 52a to 52d.

If there is a new instruction input Ci = C2, the camera movement generation program executed by the current instruction input Ci = C1 is canceled, and step S4 is executed.
Returning to step S5, a camera movement generation program corresponding to the new instruction input Ci = C2 is read from the RAM 402, and in step S5, the instruction input Ci = C2
Is executed by the CPU 401. In this case, the camera viewpoint position 1 is moved to another predetermined trajectory in the trajectory described in FIGS.

On the other hand, if there is no new instruction input Ci = C2 in step S6, step S7
In, the movement of the camera viewpoint position 1 on the predetermined trajectory by the camera movement generation program executed by the instruction input Ci = C1 is continued.

Next, in step S8, step S
When the movement of the camera viewpoint position 1 on the predetermined trajectory by the camera movement generation program read in step 4 is continued, there is no operation input of the same operation element 102 as the instruction input Ci in step S4. In this case, the camera movement generation program executed by the current instruction input Ci is canceled, and the reproduction is returned to the "normal camera viewpoint position" in step S1. For example, if the current instruction input Ci by a certain operator 102 is Ci = C1, and then there is an instruction input Ci = C1 by the same operator 102, the instruction input Ci = C1 is canceled, Returns to playback at the “normal camera viewpoint position”.

At step S8, the same instruction input C
If i does not exist, it is determined in step S9 whether the movement of the camera viewpoint position on the predetermined trajectory by the camera movement generation program read in step S4 has been completed, and has not been completed. In this case, the process returns to step S5 to continue the reproduction by the program. When the reproduction is completed, the process returns to the normal reproduction (reproduction at the “normal camera viewpoint position”) in step S2.

The normal reproduction in step S1 is as follows.
When the stage has been cleared, the moving object 60
6 ends when the robot 6 moves on the predetermined route 614 from the start point 610 to the end point 612. If the game has not been cleared, the process ends when the moving object 606 has moved to the game over point.

Next, the special effects (effects) that can be executed during the game reproduction (during the replay operation) will be described in detail. Note that the special effect is to process a video being reproduced (changing an image). The processing of the video (change of an image) is performed during normal reproduction without causing camera movement.
This can be performed in any state at the time of reproduction when the camera is moved. That is, the processing of steps S2 to S9 shown in FIG. 5 and the processing of steps S12 to S23 shown in FIG. 17 are executed in parallel by the CPU 401. Note that changing the image includes a change in the image other than the special effect.

FIG. 17 is a flowchart for explaining the occurrence of a special effect during game reproduction.

First, in step S11, a game is executed as in step S1. The operation of executing this game is the same as that described in step S1, and a description thereof will be omitted.

After the execution of the game in step S11, a selection screen as to whether or not to play the game is displayed. When the controller 16 selects the game playback, in step S12, the game is executed at the above-described normal camera viewpoint position and the game. Reproduction (normal replay) is automatically performed, and for example, a video 620 shown in FIG. 7 is displayed.

That is, the CPU 401 refers to the reproducible area and the fireworks information table 622 described above, and displays a fixed amount of display list at a normal camera viewpoint position.
A two-dimensional image after perspective projection conversion is generated by the GS 404 based on this display list based on the display list, supplied to the monitor 18 as a video signal by the encoder 407, and an image is displayed on the monitor 18.

While the game is being automatically played back, in step S13, the CPU 401 monitors whether or not a key input of the operating element 102 allocated to cause a change in the image has occurred. In this embodiment,
Specifically, the third and fourth operation units 5 of all the operators 102
The operation buttons (L1 button) 53a constituting
Operation button (L2 button) 53b, operation button (R1 button) 54a, operation button (R2 button) 54
Instruction (instruction input) Di by operation input (key input) of b
Monitor if there is.

If there is no instruction input Di in step S13, the normal replay in step S12 is performed.
Repeat until the normal replay ends.

On the other hand, L1 button 53a, L2 button 53
If there is an instruction input Di (= D1) by operating any of the operators 102 among the b, R1 button 54a, and R2 button 54b, in step S14, the input L1, L2, R1, R2 is input. Buttons 53a, 53b,
An image change generation program corresponding to 54a and 54b is read.

Next, in step S15, the instruction input D
The CPU 401 executes a program for generating a change in the image read corresponding to i (in this case, Di = D1).

Here, the L1, L2, R1, and R2 buttons 5
The contents of the program of the image change pattern corresponding to the key operation of 3a, 53b, 54a, 54b will be schematically described.

First, the change of the image corresponding to the key operation of the R1 button 54a will be described.

In this case, the default (when no explicit designation is made) is “normal” in which no change in the image is generated.
Each time the R1 button 54a is pressed once, the state changes in the following order (1) to (8), and after (8), returns to the "normal" state.

(1) FIG. 18 shows an image 642 on the monitor 18 corresponding to the special effect "overlap" when the R1 button 54a is pressed once.

In this case, as can be seen from this video 642, each time the fireworks burst, a firework 646 with the exploded fireworks enlarged 646 is displayed in front of the exploded fireworks 644 on the screen.

This “overlap” processing is performed in accordance with FIG.
As shown in (1), one area 702 is copied from the image 700 one frame before recorded in the frame buffer in the RAM 405 to a buffer (a predetermined area in the RAM 405). The image copied to the buffer is used as an interpolated and enlarged image 703, and is drawn by translucent addition on the image 704 in the frame buffer in which the building and the fireworks of the current frame shown in FIG. 19B have been drawn. FIG. 19C shows an image 706 after the “overlap” processing of the drawing result.

(2) FIG. 20 shows an image 648 on the monitor 18 corresponding to the special effect "mist" when the R1 button 54a is pressed once more.

As can be seen from the image 648, the whole screen is in a state of fog, and the fireworks 650 and the buildings 652 which are slightly blurred are displayed.

In this “mist” process, the whole blue image 714 of a thin cloud 712 shown in FIG. 21B is drawn on the original image 710 of the building 708 and fireworks 709 shown in FIG. 21A. This makes it possible to obtain an image 716 as if fogged as shown in FIG. 21C.

(3) FIG. 22 shows an image 654 on the monitor 18 corresponding to the special effect “mood” when the R1 button 54a is pressed once more.

As can be seen from the image 654, the brightness of the entire screen is reduced, and in fact, the fireworks 656 and the building 658 are reduced.
Etc., a slightly reddish image is displayed.

This "mood" processing is performed so that only the red element remains strongly for all the pixels constituting the image. For example, R (red) = 200, G (green) = 20
0, B (blue) = 200 pixels, and R × 1.
The coefficients having the components of R = 200, G = 100 and B = 100 are obtained as a result by multiplying the coefficients by 0, G × 0.5 and B × 0.5. By performing this process on the entire image, an image is generated by the “mood” process.

(4) FIG. 23 shows an image 660 on the monitor 18 of the special effect “soft (distance)” when the R1 button 54a is pressed once more.

As can be seen from the image 660, a more blurred image is displayed according to the distance from the virtual camera 608. In this image 660, the building 6 drawn with a thick solid line
62 is in the foreground, a building 664 drawn by a thin solid line is at the back, and a building 665 drawn by a dotted line is at the back.

This "soft (distance)" processing
As shown in FIG. 24, the image 720 is once converted into a small image 722.
Then, a blurred image is generated by generating an image 724 obtained by interpolating and expanding the compressed image 722 and the surrounding image. For example, 25%, 50%, and 100% polygons on which the blurred image is pasted as a texture are reduced in transparency at regular intervals from the camera viewpoint position.
By arranging it toward the back of the starting point while decreasing it by%, an image is obtained in which objects farther from the camera viewpoint position appear blurred.

(5) FIG. 25 shows an image 666 on the monitor 18 of the special effect "soft (all)" when the R1 button 54a is pressed once more.

As can be seen from the video 666, the entire screen is blurred at the same rate regardless of the distance from the virtual camera 608.

This “soft (all)” processing is performed by performing the interpolation enlargement after the compression described with reference to FIG.
It is achieved by doing it once.

(6) FIG. 26 shows an image 668 on the monitor 18 of the special effect "psychedelic 1" when the R1 button 54a is pressed once more.

As can be seen from the image 668, the background such as a building is erased, and an afterimage from the upper left to the lower right is displayed on the character or fireworks 670 on the screen.

This “psychedelic 1” processing is performed according to FIG.
As shown in FIG. 27B, an image 732 obtained by shifting the image 730 one frame before shown in FIG. Next, as shown in FIG. 27C, the image 732 is rendered opaque to the current image (without clearing the image one frame before) to obtain a drawn image 734, and the process returns to the process of FIG. By repeating the process a number of times, an image 736 having an effect like an afterimage shown in FIG. 27D is obtained.

(7) FIG. 28 shows an image 672 on the monitor 18 of the special effect "psychedelic 2" when the R1 button 54a is pressed once more.

As can be seen from the image 672, the background of the building or the like is deleted, and an afterimage extending from the outer side to the central back side is displayed on the character or fireworks 674 on the screen.

The “psychedelic 2” process is to repeat the process of enlarging the entire screen of the image one frame before by several pixels from the center of the screen and rendering the enlarged image opaque in the current image a predetermined number of times. Achieved.

(8) FIG. 29 shows an image 676 on the monitor 18 of the special effect "psychedelic mirror" when the R1 button 54a is pressed once more.

As can be seen from the image 676, the effect of the special effect “psychedelic 2” is further emphasized, and the image 678L on the left side of the screen is displayed as the inverted image 680 on the right side of the screen.

The “psychedelic mirror” process
This is achieved by inverting the left and right of the entire screen of the image one frame before, expanding the image by a few pixels from the center of the screen, and rendering the enlarged image opaquely on the current image a predetermined number of times.

Next, the change of the image corresponding to the key operation of the R2 button 54d will be described.

In this case, by default, the "auto select" function described below is turned off, and the color of the fireworks is "normal fire". R2
Each time the button 54d is pressed, the order changes in the following order (1) to (3).
It returns to the default state of "Normal Fire".

(1) Auto select: ON, normal fire, (2) Auto select: OFF, colorful fire, (3) Auto select: ON, colorful fire.

Here, "auto select: on" means
Direction keys 51a to 51 described with reference to FIGS.
d or the first to eighth camera works by the virtual camera 608, which are the contents of the program for generating camera movement corresponding to the key input of the operation buttons 52a to 52d,
401 automatically and randomly selects and plays the game based on the determined camerawork, and "auto select: off" means to return the camerawork to that at the time of game execution.

[0132] The "normal fire" means that the color when the fireworks ruptures is red fireworks if the fireworks are red.
"Colorful fire" means that if a red fireworks ruptures, it will automatically turn to a color different from the original fireworks color according to a predetermined color conversion standard, such as green or rainbow fireworks. It means to change it randomly and randomly.

Next, the change of the image corresponding to the key operation of the L1 button 53a will be described. By default,
It is in the “fair” (fine) state to be described later,
Each time the 1 button 53a is pressed, it changes in the order shown in the following (1) to (8), and after (8), returns to the default "fair" (sunny).

“Fair” indicates sunny by default. (1) “Snow” indicates that light snow falls. (2) "Snow x 2" means that the amount of snow falling is "Snow"
It shows a state that is twice as large. (3) "Snow x 3"
Indicates a state in which the amount of falling snow is three times that of “snow”. (4) “Snow × 4” indicates a state in which the amount of falling snow is four times that of “Snow”. (5) "Rain"
Indicates that it will rain lightly. (6) "Rain x
“2” indicates a state in which the amount of rainfall is twice as large as “rain”. (7) “Rain × 3” indicates a state in which the amount of rainfall becomes three times that of “rain”. (8) “Rain × 4” indicates a state in which the amount of rainfall is four times that of “rain”.

FIG. 30 shows an image 682 to which falling snow is added, and FIG. 31 shows an image 684 to which falling rain is added. The firework images are omitted because they are difficult to see on the monochrome images (color images in an actual game) shown in FIGS.

Next, a description will be given of a change in an image corresponding to a key operation of the L2 button 53b which also functions as a synthetic display means for synthesizing and displaying a map specifying the camera viewpoint position on the reproduction screen. By default, the display function of the map 600 (see FIGS. 6 and 7) displayed at the lower right of the screen is turned on (display state), and the function of displaying the number of successive bursts of fireworks as the number of chains ( The chain number display function) is turned on. Each time the L2 button 53b is pressed, the order changes in the following order (1) to (3). After (3), the default "map display function: on", "chain number display function: on" It is said.

(1) “Map display function: off”, “chain number display function: off” (2) “Map display function: off”, “chain number display function: on” (3) “Map display function: on” "
"Sequence number display function: off".

Next, in step S16, step S
During execution of an image change during game reproduction based on the program called in step 15 (while the image change is being reflected on the screen), the CPU 401 operates the keys of the other operating elements 102 allocated to generate the image change. Monitors for input. Specifically, of all the controls 102, other than the instruction input Di = D1 keyed in step S3, other instructions (instruction inputs) by operation inputs (key inputs) of the operation buttons 53a, 53b, 54a, 54b ) Monitor for Di.

If there is a new instruction input Di (Di = D2), in step S27, a change in the image performed by the current instruction input Di = D1 occurring at that time is generated. The process returns to step S14 while holding the program of FIG.

When the process returns to step S14, a program for generating an image change corresponding to the new instruction input Di = D2 is read.

Then, in a step S15, an instruction input D
The CPU 401 executes a program for generating a change in the image read corresponding to i (in this case, Di = D2).

In this state, in step S16,
While executing the change of the image at the time of the game reproduction based on the program called in step S15, the CPU 401
Is another operator 102 allocated for the occurrence of a change in the image.
Monitors whether a key input has occurred.

If no key input has occurred,
In step S18, the CPU 401 continues to execute the instruction input Di = D2 image change generation program called in step S14 and reflected on the screen.

Then, in a step S19, an instruction input D
When the content of the execution of the image generation program by i = D2 is reflected on the screen, the same operator 102 as the operator 102 pressed in step S13 or S16.
It is checked whether or not there is a key input (operation of pressing a button) at this time, whether or not there is an instruction input Di = D1 or D2.

Here, if there is no instruction input Di, or if there is an input other than the instruction input Di = D1 and D2 even if there is an instruction input Di, the process proceeds to step S20. For the sake of convenience, it is assumed that there is no input of the instruction input Di this time).

In step S20, it is confirmed whether or not the game reproduction has been completed. If it has been completed, the process returns to the game replay menu and the processing ends.

On the other hand, if the game has not been played, the program for generating a change in the image currently being executed (in this example, the program for generating an image change by the instruction input Di = D2) is held in step S21. The process returns to step S15, and the game reproduction is continued by executing the program for generating an image change by the instruction input Di = D2.

In the above-described determination in step S19, that is, when the content of the execution of the image generation program by the instruction input Di = D2 is reflected on the screen, the process proceeds to step S19.
13 or when there is a key input (operation of pressing a button) of the same operation element 102 as the operation element 102 pressed in step S16, that is, when there is an instruction input Di = D1 or an instruction input Di = D2. , The process of step S22 is performed.

In the step S22, the same instruction input Di
Is read (here, Di = D1 + D1 or Di = D2 + D2), and a program for generating a current image change occurring at that time is read in step S23. And returns to step S15.

In the step S15, the instruction input Di = D1
The program called by + D1 or the instruction input Di = D2 + D2 is executed and reflected on the screen. Less than,
Step S16 and the subsequent steps are repeated, and the game reproduction process is continued until the reproduction of step S20 is completed.

As described above, according to the above-described embodiment,
Various programs recorded on the optical disc 20 are executed by a CPU.
It is executed by the entertainment device 12 having 401. When the entertainment apparatus 12 reproduces a game in which the camera viewpoint moves in three-dimensional computer graphics, as shown in a functional block diagram of FIG. 800 (CPU 40
1, an IOP 409 and a driver 410. ), The three-dimensional data (data of a capacity that can be held in the usable area of the RAM 402) of only a certain reproducible area based on the current camera viewpoint position at the normal camera viewpoint supplied from the program is transferred to the optical disc 20. Are sequentially stored in a predetermined area of the RAM 402 as a memory. Then, during the reproduction of the game, the camera viewpoint moving means 802
(Consisting of the CPU 401 and the GS 404), an instruction input C corresponding to a predetermined operation of the controller 16 for sending an instruction to the entertainment apparatus 12 which is a computer.
In accordance with i, the camera viewpoint position of the virtual camera 608 is moved on a predetermined trajectory corresponding to the instruction input Ci within the certain reproducible area stored in the RAM 402.

In this way, the virtual camera 608 that moves on a predetermined trajectory during the reproduction of the game enables reproduction from various viewpoints.

That is, according to the above-described embodiment,
At the time of playing the game, the memory control unit 800 sequentially holds only a certain playable area in the RAM 402 based on the current camera viewpoint position. If there is an instruction input Ci (i = 1, 2,...) Of the controller during the reproduction of the game, the camera viewpoint moving means 802 sets the camera viewpoint position of the virtual camera 608 in the fixed playable area in advance. The robot is caused to move on a predetermined trajectory corresponding to the instruction input Ci among a plurality of predetermined trajectories. The instruction input Ci of the controller can be performed interactively during game reproduction.

Note that the present invention is not limited to the above-described embodiment, but can adopt various configurations without departing from the gist of the present invention.

[0155]

As described above, according to the present invention, when playing games of various genres, it is possible to play the game from various viewpoints, so that it is possible to improve the entertainment property during the game playing.

For example, during the reproduction of the game, the camera viewpoint is moved on a predetermined trajectory in the reproducible area in response to the operation of the controller, so that the camera viewpoint moving on the predetermined trajectory can be changed. The effect of enabling reproduction from various viewpoints is achieved.

The selection of the camera viewpoint moving on a predetermined trajectory can be performed interactively by operating the controller during the reproduction of the game.

[0158] Furthermore, by compositing and displaying a map specifying the camera viewpoint position on the reproduction screen, the player can more accurately confirm the reproduction start position (reproduction start time).

The fireworks can be viewed from various positions by including the fireworks object in the field of view of the camera.
(Appreciated) can be achieved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an entertainment system to which an embodiment of the present invention is applied.

FIG. 2 is a cross-sectional view for explaining the operation of the pressure-sensitive element.

FIG. 3 is a circuit block diagram used to explain the operation of the controller.

FIG. 4 is a block diagram of an entertainment system.

FIG. 5 is a flowchart provided for describing an operation of moving a camera viewpoint position during game reproduction.

FIG. 6 is a schematic diagram of a map displayed on a screen.

FIG. 7 is an explanatory diagram showing a color image by three-dimensional graphics at the moment when the fireworks are launched.

FIG. 8 is an explanatory diagram of a fireworks information table that stores content information such as the positions and types of fireworks that have been launched and fireworks that have been burst open.

FIG. 9 is an explanatory diagram of a first camera work for moving a viewpoint position of a virtual camera on a predetermined trajectory in response to an instruction input during game reproduction.

FIG. 10 is an explanatory diagram of a second camera work.

FIG. 11 is an explanatory diagram of a third camera work.

FIG. 12 is an explanatory diagram of a fourth camera work.

FIG. 13 is an explanatory diagram of a fifth camera work.

FIG. 14 is an explanatory diagram of a sixth camera work.

FIG. 15 is an explanatory diagram of a seventh camera work.

FIG. 16 is an explanatory diagram of an eighth camera work.

FIG. 17 is a flowchart provided to explain an operation of generating a special effect during game reproduction.

FIG. 18 is a schematic diagram showing an image to which a special effect of the overlap processing has been applied.

FIG. 19 is a diagram illustrating the principle of overlap processing.

FIG. 20 is a schematic diagram showing an image to which a special effect of mist processing has been applied.

FIG. 21 is a diagram illustrating the principle of mist processing.

FIG. 22 is a schematic diagram showing a video to which a special effect of mood processing has been applied.

FIG. 23 is a schematic diagram showing an image to which a special effect of software processing has been applied.

FIG. 24 is a diagram illustrating the principle of software processing.

FIG. 25 is a schematic diagram showing a video to which a special effect of another software process is applied.

FIG. 26 is a schematic diagram showing a video to which a special effect of psychedelic processing has been applied.

FIG. 27 is a diagram illustrating the principle of psychedelic processing.

FIG. 28 is a schematic diagram showing an image on which a special effect of another psychedelic process is applied.

FIG. 29 is a schematic diagram showing a video on which a special effect of another psychedelic process is applied.

FIG. 30 is a schematic diagram showing an image to which snow is added.

FIG. 31 is a schematic diagram showing an image to which rain is added.

FIG. 32 is a functional block diagram showing a basic configuration of a program.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Entertainment system 12 ... Entertainment device 16 ... Operating device (controller) 18 ... Monitor 20 ... Optical disk 401 ... CPU 402, 405 ... RAM 404 ... GS 406 ... Rendering engine 409 ... IOP 600 ... Map 602 ... Sea 604 ... City 606 ... Moving object 608, 608a to 608c ... virtual camera 618, 624, 644, 646, 650, 656, 6
70, 674, 709: Fireworks 622: Fireworks information table 625: Fireworks cylinder 642, 648, 654, 660, 666, 668, 6
72, 676, 678L, 680, 682, 684: Video 652, 658, 662, 664, 665, 708: Building 700, 703, 704, 706, 716, 720, 7
22, 724, 730, 732, 734, 736: Image 710: Original image 712: Cloud 714: Blue image 800: Memory control unit 802: Camera viewpoint moving unit

Claims (16)

[Claims] When a game in which a camera viewpoint moves in three-dimensional computer graphics is reproduced by a computer capable of executing a game program, only a certain reproducible area is sequentially stored in a memory based on a current camera viewpoint position. A holding step; and a moving step of moving the camera viewpoint on a predetermined trajectory within the certain reproducible area in response to a predetermined operation of a controller that sends an instruction to the computer during the reproduction of a game. A game reproducing method, comprising: 2. The game reproducing method according to claim 1, wherein in the moving step, a plurality of the predetermined trajectories are prepared.
A game reproducing method, comprising a step of making the controller selectable. 3. The game reproducing method according to claim 1, wherein, in the moving step, after a predetermined operation of the controller, the camera viewpoint is moved from the current camera viewpoint position on the predetermined trajectory. Returning to the current camera viewpoint position or an elapsed time position from the current camera viewpoint position. 4. The game reproducing method according to claim 1, further comprising a step of displaying a map specifying a camera viewpoint position on the reproduction screen. 5. The game reproducing method according to claim 1, wherein a fireworks object is included in a field of view of the camera. 6. A recording medium storing a computer-executable game program, wherein, when playing back a game in which a camera viewpoint moves in three-dimensional computer graphics, only a certain playable area based on the current camera viewpoint position is used. Holding the camera viewpoint sequentially in a memory, and moving the camera viewpoint on a predetermined trajectory within the certain reproducible area in response to a predetermined operation of a controller for sending an instruction to the computer during game playback. A recording medium storing a program having: 7. The recording medium according to claim 6, wherein in said moving step, a plurality of said predetermined trajectories are prepared,
A recording medium characterized by including a step of making the controller selectable. 8. The recording medium according to claim 6, wherein, in the moving step, after a predetermined operation of the controller, the camera viewpoint is moved on the predetermined trajectory from the current camera viewpoint position. A recording medium comprising a step of returning to the current camera viewpoint position or an elapsed time position from the current camera viewpoint position. 9. The recording medium according to claim 6, further comprising a step of superimposing and displaying a map specifying a camera viewpoint position on said reproduction screen. 10. The recording medium according to claim 6, wherein a firework object is included in a field of view of said camera. 11. A game program that can be executed by a computer, wherein when a game in which a camera viewpoint moves in three-dimensional computer graphics is reproduced, only a certain reproducible area is sequentially stored in a memory based on a current camera viewpoint position. A holding step; and a moving step of moving the camera viewpoint on a predetermined trajectory within the certain reproducible area in response to a predetermined operation of a controller that sends an instruction to the computer during the reproduction of a game. A program characterized by having. 12. An entertainment device for executing various programs, a controller for instructing the entertainment device of an operation request by a user, and a display device for displaying a three-dimensional computer graphics image output from the entertainment device. A memory control unit that, when playing back a game in which the camera viewpoint moves in three-dimensional computer graphics, stores only a certain reproducible area in the memory sequentially based on the current camera viewpoint position by the entertainment device; And a camera viewpoint moving means for moving the camera viewpoint on a predetermined trajectory within the certain reproducible region in response to a predetermined operation of a controller that sends an instruction to the computer during the reproduction of a game. Have Entertainment system, characterized in that. 13. The entertainment system according to claim 12, wherein said camera viewpoint moving means prepares a plurality of said predetermined trajectories and makes said trajectory selectable by said controller. 14. The entertainment system according to claim 12, wherein said camera viewpoint moving means moves said camera viewpoint on said predetermined trajectory from said current camera viewpoint position at the time of a predetermined operation of said controller. After that, the entertainment system returns to the current camera viewpoint position or an elapsed time position from the current camera viewpoint position. 15. The entertainment system according to claim 12, further comprising: a synthesis display unit that synthesizes and displays a map on which a camera viewpoint position is specified on the reproduction screen. 16. The entertainment system according to claim 12, wherein a fireworks object is included in a field of view of said camera.