JP2000149059A - Device and method for processing images, game system and vehicle play machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processing method capable of more really and richly expressing an oscillating field such as the surface of water, where an object such as motorboat or jet ski is sailing, and enhancing the interest in the game of ship. SOLUTION: In a image processing method for processing the data of image to move the object on the field of three-dimensional virtual space, the height at the same position on the surface of the field is changed with the passage of time (S205), the state of fitting the object to the surface of the field is discriminated, while moving the object related to it on the field (S206) and corresponding to this abutting discriminated result, the quantity of the object at the height position in the vertical direction on a two-dimensional surface to become the reference of three-dimensional virtual space of the object is corrected (S207-S212).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, an image processing method, a game apparatus, and a game machine, and more particularly to a game such as a boat or a jet ski that simulates a water vehicle such as a boat navigating on water. The present invention relates to an image processing device, an image processing method, a game device, and a game machine suitable for a game having a three-dimensional virtual space in which a field for moving a character fluctuates in time and position.

[0002]

2. Description of the Related Art In recent years, game devices that make full use of image processing technology are required to provide clearer and more realistic images for home and business use, as well as to enrich and diversify game contents. ing.

A game that handles a driving game (car racing game) as one field of the game device having such a configuration.
2. Description of the Related Art A conventional device is known. In driving games, it is particularly important to simulate the movement of a car as realistically as possible. Conventionally, in this simulation, a mass point model that replaces a vehicle with one mass point such as the position of the center of gravity is adopted. A method of determining the degree of contact (contact) between a car and the ground at one point is known. In the driving game, special effects on the behavior of the vehicle are now indispensable. For example, sand smoke, tire marks and the like are frequently used as parameters of the special effect.

However, in the case of a game simulating a water vehicle such as a boat or a jet ski, a field on which an object (object) travels is a water surface (or a sea surface). For this reason, the water surface as a field and the land surface have a decisive difference in their characteristics. This is because, as can be easily seen from the difference in real space, the position of the traveling path itself in the space where the vehicle runs does not fluctuate in time, but the water surface usually sways due to wind and waves (undulation ).

[0005] For this reason, in the case of a vehicle game, the data in the three-dimensional virtual space that forms the field, that is, the field and the traveling road, may be fixed data. On the other hand, in order to more realistically represent the field used in the ship game, that is, the water surface, it is desired to change the position of the water surface height at the same position with time. By simply adopting the design method of the conventional car game, it is inevitable that the surface of the water is fixed in time, so that the navigation becomes monotonous and a realistic game feeling cannot be obtained. This is especially true for races where multiple ships compete for speed and ranking, which is a significant handicap in terms of interest in the game.

In such a situation, conventionally,
No proposal has been made to easily and more realistically create image data of a oscillating water surface (field). Furthermore, no specific proposal has been made that can sufficiently satisfy such a method of accurately determining the degree of contact (contact) with the water surface or a method of image processing such as a wake which can be called a special effect on the water surface. .

On the other hand, in a game simulating a water vehicle such as a boat or a jet ski, a game machine (rocking member) in which a player himself actually enjoys riding and maneuvering.
May be used. In this type of game, when a player on a swinging member imitating an actual vehicle operates a steering wheel or the like to perform steering, a turning radius in the game is determined substantially according to steering, that is, according to a steering angle. Then, while performing the pseudo running, the swing member is tilted according to the steering angle to make the turning experience a pseudo experience, and the game proceeds. Therefore, the steering
Only by operating the steering wheel.

[0008] However, when a boat such as a jet ski or a motorboat running on water attempts to make a smooth turn, not only the operation of the steering wheel but also an appropriate shift of the weight to the left and right is required, and the inclination due to the weight shift becomes a turning radius. Will also be affected.

However, in the conventional vehicle game machine, the weight shifting operation is not required only by operating the steering wheel, and the swinging member does not tilt due to the player's weight shifting. It was quite different from the movement, and it lacked the sense of reality and did not provide a real and exciting experience.

The present invention has been made in view of the above-mentioned conventional situation, and one of the objects is to make a swinging field such as a water surface on which an object such as a motorboat or a jet ski travels more realistic and rich. It is an object of the present invention to provide an image processing device, an image processing method, and a game device, which can be expressed in a manner similar to that described above, and can enhance the sense of interest in a ship-related game.

A second object of the present invention is to accurately judge the contact (contact) between the water surface and the ship in the three-dimensional virtual space, and thereby to accurately determine the height of the water surface and the ship without error. Is to be able to carry out various image processing.

A third object of the present invention is to provide an image processing method capable of accurately expressing a wake or an object immersed in water with a small amount of calculation.

It is a fourth object of the present invention to provide a game apparatus which allows a player to fully experience a virtual reality that a vehicle on which the player is riding is sailing on the water surface.

Further, a fifth object of the present invention is to provide a swinging member on which a player rides with a steering operation so that the swinging member appropriately tilts due to a shift in weight, thereby obtaining a realistic feeling close to the turning of an actual vehicle. It is to provide a game machine.

[0015]

According to an aspect of the present invention, there is provided an image processing apparatus for processing image data for moving an object on a field in a three-dimensional virtual space. A field swinging unit that changes the height of the same position on the surface of the field with the passage of time; and an object moving unit that moves the object while involving the object on the field.

The field swinging means of the image processing apparatus changes the height value at the same position on a two-dimensional plane serving as a reference of the field with the passage of time, and the object moving means changes the height value. It may be configured to calculate a value of a height at which the object is located according to the value of the height.

Further, the field of the image processing apparatus may be a water surface set in the three-dimensional virtual space, and the object may be a boat such as a jet ski or a boat traveling on the water surface.

The field oscillating means of the image processing apparatus includes a storage means for storing a wave height value set on a two-dimensional plane serving as a reference of the field; Calculation means for calculating the movement of the two-dimensionally oscillating surface based on the value by synthesizing a sine wave and a cosine wave with respect to the value of the wave height may be provided.

The field oscillating means of the image processing apparatus may include a swell height data of a two-dimensional distribution set in advance corresponding to a two-dimensional position on a two-dimensional surface serving as a reference of the three-dimensional virtual space. , A recognizing means for periodically recognizing the current two-dimensional position of the object, and reading out the swell height data corresponding to the recognized two-dimensional position from the storing means. Means, and a calculating means for periodically calculating the swell data of the water surface which waves two-dimensionally on the two-dimensional surface based on the read swell height data.

Further, the storage means of the image processing apparatus assigns the swell height data to a plurality of blocks obtained by dividing the reference plane, and numerical values of the swell height data of at least two blocks among the plurality of blocks. May be set differently.

The storage means of the image processing apparatus assigns the swell height data to a plurality of blocks obtained by dividing the reference plane, and sets a value of the wave height for each block. Is also good.

Further, the storage means of the image processing apparatus may have a memory having a plurality of hierarchical structures, and store different types of the swell height data for each hierarchy of the memory.

Further, the calculating means of the image processing apparatus may be means for calculating periodically fluctuating swell data composed of a composite wave of a sine wave and a cosine wave.

Further, the calculating means of the image processing apparatus may be means for calculating the synthesized wave for each of polygons corresponding to a plurality of grid positions.

The field oscillating means of the image processing apparatus comprises: setting means for setting a plurality of display areas using the plurality of polygons as one object data; and setting a plurality of display areas within a field of view in the plurality of display areas. Specifying means for specifying the entered polygon as a display polygon.

The calculating means of the image processing apparatus may determine whether or not the swell height data corresponding to the current two-dimensional position of the object read this time differs from the previous swell height data by a predetermined value or more. A swell height obtained by slightly increasing or decreasing the previous swell height data in accordance with a difference between the previous swell height data and the current swell height data if the judgment means determines that the difference is greater than or equal to a predetermined value. And a creation unit for creating data.

[0027] The image processing apparatus may further comprise a participant creating means for creating participant data representing the participant's involvement on the field.

The field of the image processing apparatus is a water surface set in the three-dimensional virtual space, the object is a ship such as a jet ski, a boat, or the like navigating on the water surface. It may be a wake created by the ship on the water surface.

Further, the participant creating means of the image processing apparatus converts the data of the moving trace polygon extending in accordance with the moving position and the advancing angle of the target object on the two-dimensional plane, which is a reference in the three-dimensional space. A data forming means for forming the data of the participants may be provided.

Further, the data forming means of the image processing apparatus may include means for cutting the moving trace polygon in accordance with the extension length of the moving trace polygon, the extension time, or the advance angle. Good.

[0031] The data forming means of the image processing apparatus may include means for stopping the drawing of the moving trace polygon when the object floats a predetermined distance from the reference plane.

Further, when the moving trace polygon is cut, the involved body creating means of the image processing apparatus draws the moving trace polygon thereafter for a predetermined time,
After drawing for a certain period of time, there may be provided command means for giving a command to draw while reducing the length of the moving trace polygon.

Further, the image processing apparatus may include a hit judging means for judging a hit state between the object and the surface of the field.

Further, the image processing apparatus may include a correction unit for correcting the position of the object based on the result of the determination by the determination unit.

The correction means of the image processing apparatus may further comprise: the correction means for determining the amount of the object with respect to a vertical height position of a two-dimensional plane serving as a reference in the three-dimensional virtual space. You may comprise so that it may correct according to a determination result.

The correcting means of the image processing apparatus, when the determining means determines that the surface of the field is located at a height higher than the height of the target object, according to the drainage amount of the target object. The object is moved upward in the vertical direction, and when the determination unit determines that the surface of the field is at a lower height position than the object, the object falls by free fall of the object. Means for moving the body upward in the vertical direction may be used.

[0037] The image processing apparatus may further include a tilt correction unit configured to correct the tilt of the object in the three-dimensional virtual space according to a tilt of the field surface at a two-dimensional position on the two-dimensional surface. May be provided.

[0038] The inclination correcting means of the image processing apparatus may be a means for performing a process of gradually bringing the inclination of the object toward the inclination of the field surface at regular intervals.

The field of the image processing apparatus may be a water surface set in the three-dimensional virtual space, and the object may be a boat such as a jet ski or a boat traveling on the water surface.

A drawing method according to the present invention is a drawing method for drawing a water surface set in a three-dimensional virtual space, wherein a transmission process is performed on an image of an object under the water surface so that the image of the object under the water surface is displayed on the display screen. It is drawn before the image.

Another image processing apparatus according to the present invention includes a first means for displaying image data for displaying a water surface set in a three-dimensional virtual space, and an underwater portion of an object at least partially immersed in the water surface. And second means for creating image data when seeing through from above the water surface, wherein the second means comprises:
Means for creating the image data of the object by giving the underwater part a color when immersed in water and performing a mesh process.

According to another image processing method of the present invention, there is provided an image processing method for processing data of an image for moving an object on a field in a three-dimensional virtual space. While moving the object while involving the object on the field, the hit state of the object on the surface of the field is determined, and the three-dimensional virtual state of the object is determined according to the hit determination result. The amount of the target object with respect to a vertical height position of a two-dimensional plane serving as a reference in space is corrected.

The field in this image processing method is a water surface set in the three-dimensional virtual space, and the object may be a boat such as a jet ski or a boat traveling on the water surface.

[0044] The game device of the present invention is a vehicle provided with means for providing the player with operation information in a real space, and a swingably supported housing, and is provided on a field in a three-dimensional virtual space. An image processing device for creating image data for moving a character representing the vehicle in response to the operation information, and a field for changing the height of the same position on the surface of the field over time. A swinging means; and a housing swinging means for swinging the housing of the vehicle in response to a change in height of the field surface by the field swinging means.

The field surface in this game device is a water surface set in the three-dimensional virtual space, and the vehicle may be a boat such as a jet ski or a boat that sails on the water surface.

Still another image processing apparatus according to the present invention is an image processing apparatus for processing image data for moving an object on a field in a three-dimensional virtual space, wherein the object is moved while being involved in the field. And a participant creating means for creating participant data representing the participant's involvement on the field.

This image processing apparatus includes a hit judging means for judging a hit state between the target object and the surface of the field, and in accordance with the judgment result, the participant creating means creates the data of the participant. Is also good.

The field in the image processing apparatus is a water surface set in the three-dimensional virtual space, the object is a boat such as a jet ski or a boat navigating on the water surface, and the object is an object. It may be a wake created by the ship on the water surface.

In addition, the participant creating means of the image processing apparatus converts the data of the moving trace polygon which extends in accordance with the moving position and the advance angle of the object on the two-dimensional plane which is the reference of the three-dimensional space. A data forming means for forming the data of the participants may be provided.

Further, the data forming means of the image processing apparatus may include means for cutting the moving trace polygon in accordance with the extension length of the moving trace polygon, the extension time, or the advance angle. Good.

Further, the data forming means of the image processing apparatus may include means for stopping drawing of the moving trace polygon when the object floats a predetermined distance from the reference plane.

Further, when the moving trace polygon is cut, the involved body creating means of the image processing apparatus draws the moving trace polygon thereafter for a predetermined time,
After drawing for a certain period of time, there may be provided command means for giving a command to draw while reducing the length of the moving trace polygon.

The vehicle amusement machine of the present invention comprises a swing member on which a player rides, steering means provided on the swing member, steering angle detection means for detecting a steering angle of the steering means, A supporting means for supporting the member in a freely tiltable manner, and a left and right tilting cylinder acting to maintain a right and left tilting balance of the swinging member;
The image processing apparatus includes a pressure control unit that controls a pressure applied to the left-right tilt cylinder based on a detection signal of the steering angle detection unit, and a control unit that transmits a predetermined control signal to the image processing apparatus.

The left-right tilting cylinder of this vehicle amusement machine has a structure in which two cylinders are connected in series, and while the one cylinder is extended and the other cylinder is contracted, the swinging member is kept horizontal, The control means may select one of the two cylinders according to the detected steering angle direction of the steering angle detection means, and reduce the pressure acting on the selected cylinder in accordance with the detected steering angle.

Further, in this vehicle amusement machine, the tilt angle detecting means for detecting the left and right tilt angles of the swinging member, and the detected tilt angle of the tilt angle detecting means and the steering angle detected by the rudder angle detecting means. Turning radius determining means for determining a turning radius on the game may be provided.

Also, the vehicle amusement machine includes acceleration operation means provided on the swinging member, and acceleration operation detection means for detecting an operation state of the acceleration operation means. The turning radius in the game may be determined based on the detected inclination angle of the inclination angle detection means, the detected steering angle of the steering angle detection means, and the acceleration operation state detected by the acceleration operation detection means.

Further, the vehicle amusement machine may be provided with a forward / backward tilt cylinder for tilting the swinging member forward and backward, so that the swinging member can tilt forward and backward as well as left and right.

Further, in this vehicle amusement machine, moving picture display means is provided in front of the swinging member, and a player riding on the swinging member can steer while watching a moving picture displayed on the moving picture display means. It may be configured as follows.

A game device according to the present invention is a game device for displaying an image in which a virtual space is captured from a predetermined position, a drawing means for drawing a moving trace of a moving object moving in the virtual space, Erasing means for erasing as time passes.

A game device according to another aspect of the present invention comprises:
A game device for displaying a moving object moving in a virtual game space, comprising: drawing means for drawing a moving trace left in the virtual space by the moving object; and an area phenomenon for reducing a display area of the moving trace over time. Means.

[0061] The above-mentioned game apparatus may include reading means for reading the current position of the moving body, and the drawing means may be configured to draw the moving trace of the moving body within a predetermined range from the current position. .

[0062]

Embodiments of the present invention will be described with reference to the drawings. In the first embodiment, the first structure of the vehicle amusement machine according to the present invention will be described with reference to FIGS.
The image processing of the present invention will be described with reference to FIGS. Further, in the second embodiment, a second structure of the vehicle game machine will be described with reference to FIGS.

Embodiment 1 [Description of First Structure of Vehicle Amusement Machine] First, referring to FIGS. 1 to 5, a predetermined control signal is transmitted to and from the image processing apparatus of the present invention, and a character ( For example, a structure of a first embodiment of a vehicle amusement machine configured to perform the same movement as that of a jet ski will be described.

FIG. 1 is an external perspective view of a game device according to one embodiment. This game device is a device for game content of a jet ski race. Although not shown,
In the case where a plurality of mutually communicable jet ski game devices shown in FIG. 1 are installed and a plurality of players compete with each other on a water race track constructed in a three-dimensional virtual space, or when a single player plays, It is possible to compete with a competitor (enemy ship) on a program prepared on the device side. Although the game device of this embodiment is intended for a jet ski, the present invention can be similarly applied to a game device for a boat such as a motor boat.

The game device for a jet ski shown in FIG. 1 includes a housing 1 on which a player rides, and a data processing unit 2 for operating the mechanism of the housing 1.

As shown in detail in FIG. 2, the casing 1 has a fixed mechanical base 11 at the lower part thereof, and a cylinder 1 as a suspension mechanism above the mechanical base 11.
A moving base 18 is provided via 2 to 16 and a crank 17. That is, the moving base 18 is movable with respect to the mechanical base 11. A saddle portion 20 over which the player straddles is fixedly mounted on the upper side of the moving base 18 and the saddle portion 2
On the front side of the front end of the handle 0, a handle portion 21 is installed so as to be rotatable within a predetermined angle range. The handle 21 is provided with a handle 21A, an accelerator 21B, a view change switch 21C, and the like for inputting operation information of the player to the data processing unit 2.

During the game, the player rotates the steering wheel 21A to rotate the steering wheel 21A, and sends a signal of the traveling speed of the own ship by operating the accelerator 21B to the data processing unit. 2 can be output.
When the view change switch 2 is operated, a signal of a view change between the viewpoint when the ship is viewed from the front and the viewpoint when the ship is viewed obliquely from behind can be output to the data processing unit 2.

As shown in FIG. 2, an air-type center cylinder 12, left and right link rod cylinders 13 and 14, and left and right centering are provided between the mechanical base 11 and the moving base 18 of the casing 1.・ Cylinder 15, 1
6, and the front crank 17 are inserted. The center cylinder 12 is installed horizontally and horizontally at the center of the mechanical base 11 in the lateral (left and right) direction, and expands and contracts between a predetermined position on the rear side of the mechanical base 11 and a predetermined position of the crank 17. It is possible (see FIGS. 4 and 5).
The crank 17 is rotatably attached to a predetermined position above a support member erected at a predetermined position on the front side of the mechanical base 11. The upper predetermined position forms a crank rotation center. The crank 17 and the moving base 18 are jointed via a spherical bearing.

As shown in detail in the piping diagram of FIG. 3, the center cylinder 12 is formed by connecting air cylinders having the same stroke in front and rear in series, and applying a constant pressure to the rear upper and lower pressure chambers on the extension side. An electric pressure controller (electro-pneumatic regulator) 25 is connected to each of the upper and lower pressure chambers at the front. Since a constant pressure is applied to the extension side, even if a load is applied to the moving base 18 and a force is applied in the cylinder shrinking direction, it is possible to balance with the force,
The position of the moving base 18 does not change. For this reason, even if a load is applied across the player, the center cylinder 1 can be moved only with a small amount of air to the front upper and lower pressure chambers.
2 can be operated. Thus, the electric pressure controller 25 having relatively small power can be used. In FIG. 3, 26a and 26b indicate 4-port valves, 27a to 27c indicate 2-port valves, and 28 indicates an air tank.

The electric pressure controller 25 is actually composed of two pressure control units as shown in FIG. 3 and controls the front upper and lower pressure chambers in accordance with the pressure control signal of the electric quantity received from the data processor 2. Can control pressure. The stroke position and the stroke speed of the center cylinder 12 can be controlled according to the pressure control.

This control example is shown in FIGS. As shown in FIG. 4, when the center cylinder 12 extends, the crank 1
7 is pushed and the crank 17 rotates around its center of rotation. Since the crank 17 and the moving base 18 are connected by a spherical bearing, the tip side of the moving base 18 is lifted up. Link rod cylinders 13, 1 supporting the rear of the moving base 18
4 leans backward. For this reason, the entire moving base 18 moves up and down in the pitching direction. As shown in FIG. 5, when the center cylinder 12 contracts, pitching movement in the opposite direction occurs. That is, by controlling the pressure control signal given to the electric pressure controller 25, the movement in the pitching direction can be given to the saddle portion 20, and the player riding on the saddle portion 20 can experience the movement in the pitching direction.

The left and right link rod cylinders 13 and 14
As shown in FIG. 2, is inserted obliquely inward at the rearmost position of the mechanical base 11 to form a trapezoidal four-node link portion. This link rod / cylinder 13, 14
Is normally pressed on the elongation side so that it does not shrink when a load is applied. Moving base 18
When a force in the roll direction is applied to the moving base 18, the rolling motion in which the center position of the moving base 18 shifts while lowering, and the moving motion of the moving base 18 around the spherical bearing at the tip become a combined motion. A dimensional torsional movement becomes possible.

The left and right centering cylinders 15,
16 is the link rod / cylinder 1 as shown in FIG.
It is inserted obliquely inward at the position on the front side of 3, 14,
It functions as a spring. Therefore, when the external force applied to the moving base 18 is released, the moving base 18 is centered by the spring force of the centering cylinders 15 and 16.

[Explanation of Image Processing of the Present Invention] Next, the image processing of the present invention will be described with reference to FIG. 6 to FIG.

[Circuit Configuration] First, the data processing unit 2 is
It will be described based on. The data processing unit 2 includes a processing body 3
0, a TV monitor 31, and a speaker 32.
The TV monitor 31 displays an image of a jet ski race game, and a projector may be used in place of the TV monitor.

The processing main body 30 has a CPU (Central Processing Unit) 101, a ROM 102, a RAM 1
03, sound device 104, input / output interface 1
06, scroll data arithmetic unit 107, co-processor (auxiliary arithmetic processing unit) 108, terrain data ROM 10
9, geometallizer 110, shape data ROM 111,
Drawing device 112, texture data ROM 113, texture map RAM 114, frame buffer 115,
An image synthesizing device 116 and a D / A converter 117 are provided.

Further, polygons are used for image display, and the polygon data refers to a data group of relative or absolute coordinates of each vertex of a polygon (polygon) composed of a set of a plurality of vertices.

The terrain data ROM 109 stores relatively coarsely set polygon data which is sufficient for executing the below-described collision determination between the ship and the water surface. On the other hand, the shape data ROM 111 stores more precisely set polygon data related to the shape of the screen such as the ship, the water surface, and the background.

The CPU 101 includes a ROM 102 storing a predetermined program and the like via a bus line, a RAM 103 storing data, a sound device 104, an input / output interface 106, and a scroll data calculation device 10.
7. Co-processor 108 and geometallizer 110
It is connected to the. The RAM 103 functions as a buffer, and writes various commands to the geometalizer 110 (display of an object, etc.), and writes a matrix at the time of calculating a conversion matrix (scaling, etc.).
And so on.

The input / output interface 106 is connected to the input device 21, the electric pressure controller 25, and output devices such as various lamps.
The operation signal of the steering wheel of the
01 and can output a control signal generated by the CPU 101 or the like to the pressure controller 25. The sound device 104 is connected to the speaker 14 via the power amplifier 105.
The audio signal generated by the sound device is supplied to the speaker 32 after power amplification.

In the present embodiment, the CPU 101
2, an operation signal from the input device 21 and a terrain data from the terrain data ROM 109.
Or shape data from the shape data ROM 111 (“objects such as own ship, other ship”, “water surface, sky,
3D data such as backgrounds of islands, trees, rocks, etc.), processing the ship's behavior, expressing and processing the waves on the water surface, judging and processing the water surface (waves) and the contact (contact) of the ship, At least rendering processing of a wake and representation processing of an underwater object are performed.

The ship behavior processing simulates the movement of the ship in the three-dimensional virtual space by the operation signal of the player from the input device 21. After the coordinate values in the three-dimensional virtual space are determined, A transformation matrix for transforming coordinate values into a visual field coordinate system and shape data (ship, terrain, etc.) are specified to the geometallizer 110. Coprocessor 10
8 is connected to a terrain data ROM 109, and predetermined terrain data is passed to the co-processor 108 and the CPU 101. The co-processor 108 mainly determines the contact between the water surface and the ship, and mainly undertakes floating-point calculations during this determination and when calculating the behavior of the ship. As a result, the co-processor 108 makes a collision determination between the ship and the water surface, and the
It is given to U101. Thereby, the calculation load of the CPU 101 is reduced, and the hit determination is quickly performed.

The geometallizer 110 is a shape data ROM.
111 and a drawing device 112. Shape data
In the data ROM 111, polygon shape data (three-dimensional data such as a ship composed of vertices, water surface, background, etc.) is stored in advance, and the shape data is transferred to the geometalizer 110. The geometalizer 110 perspectively transforms the designated shape data using the transformation matrix sent from the CPU 101, and obtains data converted from a coordinate system in a three-dimensional virtual space to a view coordinate system.

The drawing device 112 attaches a texture to the converted shape data of the visual field coordinate system, and
15 is output. In order to paste the texture, the drawing device 112 is connected to a texture data ROM 113 and a texture map RAM 114, and is also connected to a frame buffer 115.

The scroll data calculation device 107 calculates data of a scroll screen such as a character. The calculation device 107 and the frame buffer 115 are connected to each other via an image synthesizing device 116 and a D / A converter 117. To the TV monitor 13. As a result, the polygon screen temporarily stored in the frame buffer 115 such as the ship, the water surface, and the background and the scroll screen for character information such as the speed value and the lap time are combined according to the designated priority, and the final frame image data is obtained. Data is generated. This image data is converted into an analog signal by the D / A converter 117 and sent to the TV monitor 13, where the image of the ship race game is displayed in real time.

The programs and data necessary for the image processing of the present invention are, as shown in FIG. 6, a ROM 102 storing an image processing program and the like, a terrain data ROM 1 and the like.
09 and 111, and are stored in the texture data ROM 113. However, the present invention is not limited to these ROMs. The program and data are stored in a recording medium provided in some form, and this recording medium is stored in the image processing apparatus of the present invention. It can also be applied.

The recording medium referred to here is a medium on which information is recorded by some physical means, and is capable of causing the image processing apparatus of the present invention to perform predetermined image processing. That is, the recording medium of the present invention records a program for implementing all or a part of the image processing and game processing described in this specification.

For example, CD-ROM, DVD, ROM cartridge, CD-R, R with battery backup
Includes AM memory cartridge, flash memory cartridge, nonvolatile RAM cartridge, game cartridge, floppy disk, hard disk, magnetic tape, magneto-optical disk, and the like.

Further, it includes a communication medium such as a wired communication medium such as a telephone line and a wireless communication medium such as a microwave line. The Internet is also included in the communication medium mentioned here.

[Operating Principle] Next, the operating principle of the game device will be described with reference to FIGS. First, the overall processing performed by the CPU 101 will be described with reference to FIG. 7, and then the details of each processing will be described with reference to FIGS.

[Overall Processing Contents (Step 201 to Step 212)] When the game apparatus is started, the CPU 101
Starts the process shown in the figure by a timer interrupt process for each fixed time Δt corresponding to the cycle of one frame.

First, it is determined whether or not a predetermined variable or the like has been initialized (step 201). This determination is not shown, but is performed by, for example, flag processing. If the initialization has not been completed yet, that is, if the process of FIG. 7 is to be entered for the first time, the initialization process is performed (step 202).

Next, the CPU 101 sends the operation information (here, the steering wheel turning angle, the accelerator opening, the signal of the view change switch) relating to the jet ski operation by the player operating the input device 21 to the input / output interface 106. It is read in as a digital quantity via the interface (step 201). Then, the CPU 101 determines 3 based on the turning angle (that is, the traveling direction) and the accelerator opening (that is, the traveling speed of the jet ski) in the operation information.
The position (x, z) of the two-dimensional plane in the three-dimensional virtual space is calculated as the own ship position at the time of this interruption (step 20).
4). Here, the xz plane in the three-dimensional virtual space means a plane of a field representing a water surface.
Therefore, the y-axis direction represents the height direction of the wave.

When this current position (x, z) is known, CP
U101 sequentially calculates the undulation height of the wave on the water surface (step 205), determines and processes the collision between the wave and the own ship (step 206), and performs the inclination process of the own ship according to the inclination of the wave. (Step 207), wake expression processing is performed (Step 208), and swing processing of the casing 1 is performed (Step 209). These processes constitute one of the main features of the present invention and will be described later in detail. Note that the processing from step 205 to step 207 in the above-described processing can be performed in an appropriate order, and need not necessarily be performed in this order.

When these series of processes are completed, the shape data (polygon data) including the ship behavior process according to the viewpoint commanded by the view change switch 21C.
(Step 210). In addition,
This processing includes a simple expression processing of an object such as a rock submerged in water, which will be described later.

Further, the CPU 101 executes three-dimensional shape data.
A perspective transformation matrix for perspectively transforming the data into a visual field coordinate system is created (step 211). Then, the matrix and the shape data are transferred to the above-described geometallizer 110 via the RAM 103 (step 212).

This series of processing is performed for each frame period of the TV monitor 31.

[Wave Expression Processing (Step 205)] Next, the processing of expressing the wave undulation height in step 205 described above will be described in detail with reference to FIGS.

The CPU 101 sets a new undulating wave height (hereinafter referred to as "wave swell height") according to the two-dimensional coordinates (x, z) representing the position of the jet ski operated by the player. The value H is read from a table stored in the ROM 102 in advance (step 205-1). The table of the swell height setting value is schematically shown in FIG. A racetrack 130 on the water surface having a predetermined size is set corresponding to the xz plane of the virtual three-dimensional space. This race track 13
0 is further divided into a plurality of blocks BK, and a swell height setting value H is assigned to each block BK.
The hatched portion in the schematic racetrack 130 represents land. For this reason, a port between land and land is regarded as an inlet, and a relatively low swell height setting value is assigned to such an inlet block. Conversely, a higher swell height setting value is assigned to a portion that can be regarded as the open sea. For this reason, when the jet ski sails as indicated by the arrow in FIG. 9, the position coordinates (x, z) at a certain frame time t ₁ are in the upper right end block BK.
The swell height setting value H = 0.5 m is read, and the time t ₂
Then, since the block has moved to the next block BK, H = 0.
6m is read out, time t ₃ in the block BK under the
And H = 0.4 m is read.

Next, the CPU 101 calculates the swell height setting value H 'at the time of the previous interruption (every predetermined time corresponding to the frame period) and the swell height setting value H of the block where the jet ski is located at the time of the current interruption. Are compared (step 205-2). The result of this comparison is H <H ′ or H>
If it is H ′, the calculation result of H ′ + (H−H ′) · k is substituted for H (step 205-3). The value of the coefficient k is, for example, about 0.05. As a result, even if the swell height setting value differs between the previous time and the current time due to the movement to another block, the swell height value read in the previous block while repeating the frame gradually becomes the current value. Becomes the value read in the block. That is, it is possible to avoid a sudden change in the swell height setting value, and to smoothly change the swell height of the wave from block to block.

After the determination of "NO" in step 205-2 or after the above-described processing of step 205-3 has been performed, the processing of step 205-4 and thereafter is sequentially performed. First, a predetermined constant value is added to a speed counter set to advance (wave) the wave (step 205-4). Also, a predetermined number (for example, 100) predetermined to constitute one object data
The position (x, z) of the polygon grid (that constitutes object data handled as one object) is read (step 205-5).

Further, each position (x, z) of the predetermined number of polygons (eg, the center of gravity of the polygon or the position of each vertex,
The undulation height Yp of the wave at each position of the polygon determined from the current position of the jet ski is calculated from the following equation for all the polygons (steps 205-6 and 205-).
7).

Yp = cos (CNT · 2n + (int)
(X · WR)) · H + sin (CNT + (int) (x
・ WR) + CNT ・ 2n + (int) (z ・ WR)) ・
H · c Here, CNT: a wave speed counter for increasing a certain number every frame WR: a wave rate per polygon size (for example, 20 m) x, z: x, in a three-dimensional virtual space (global coordinate system)
z position H: maximum value of the height (current swell height setting value) c: coefficient for reducing a wave in a specific direction (for example, c =
0.04) n: positive integer value (2n is a tiling element) cos, sin: cos function, sin function

The wave rate is a rate (for example, a constant) for calculating the cycle and height of the wave undulation. The tiling element is a predetermined number (for example, 10
(0) polygons, which are arranged vertically and horizontally on the game screen to form a sea surface, land, and the like.

According to the above equation, a composite wave of a sine wave and a cosine wave constitutes one object data, for example, 1
It is individually calculated for 00 polygons.

The equation for obtaining the undulation height Yp is not necessarily limited to the above-described one, but may be a simpler combination of a sine wave and a cosine wave. The swell data based on only the wave component may be calculated.

When the swell calculation is completed, the calculated swell height data of, for example, 100 polygons is stored in the RAM 10.
3 (step 205-8). Thus, the undulation height data of, for example, 100 polygons can be used as one object data.

Next, a predetermined number of display areas (for example, 4 ×
4 object data: 1 object data consists of, for example, 100 polygons. ), Object data, that is, undulation height data of, for example, 100 polygons is written (step 205-9). Thereby, for example, as shown in FIG. 10, a total of 1600 display polygons are written in a 4 × 4 display area.

Next, a predetermined number of display areas (for example, 4 ×
In 4), for example, a polygon that falls within the visual field range θ when the viewpoint camera is assumed to be placed at the center O is specified (step 205-10). Eventually, only polygons that fall within this field of view will be displayed. By performing such processing, it is possible to accurately express a feeling of the water surface different from the conventional fixed traveling road, background, and the like, and to enhance the realism of the water game and enhance the game characteristics.

[Judgment Determination / Processing (Step 206)] Next, the collision judgment between the undulation of the wave and the jet ski and the subsequent processing executed in step 206 of FIG. 7 are shown in FIG.
1 and FIG.

First, the CPU 101 obtains the wave undulation height Yp = f (x, z) corresponding to the jet ski position (x, z) associated with the current interruption by using the above-described equation (step 206-). 1). FIG. 12 shows an example in one dimension x. Next, assuming that the height of the jet ski at that time is b, a comparison between this height b and the swell height Yp = f (x, z) is performed to determine whether Yp = f (x, z)> b. The determination is performed (step 206-2). The height b of the jet ski is, for example, the height from the position of the world coordinate system y = 0 to the position of the center of gravity of the jet ski.

In this hit determination, "NO", that is, Yp =
When f (x, z) ≦ b, the jet ski is at a position higher than the wave. At this time, the gravitational acceleration g
The height b of a new jet ski for hitting (contacting) the jet ski with the wavefront is calculated based on the free fall formula (step 206-3).

On the other hand, if the determination in step 206-2 is "YES", the jet ski is in contact with the waves or submerged in the water, so another series of processing is performed in step 206-. Implementation is performed as in 4 to 8. That is, the sinking depth d = f (x, z) -b is calculated (step 206-4), and the drainage amount V = d · S corresponding to the sinking depth is calculated (step 206-).
5). S is the bottom area of the jet ski. Further, the vertical acceleration Gy due to the buoyancy that the jet ski receives due to the drainage amount V is calculated from the equation Gy = (V−F) / m = (V−m · g) / m (step 206-6). ). Where m
Is the mass of the jet ski, and g is the gravitational acceleration. Furthermore, this acceleration Gy is equal to the vertical speed of the jet ski.
Is added to calculate the vertical speed of the new jet ski, and the height b of the new jet ski is calculated from this speed (step 206-8). This height calculation is based on V ·
The process is performed until g and mg are balanced (step 206-
7).

From the above-mentioned hit determination and the subsequent jet ski height processing, it is possible to accurately express the manner of sailing on the water. Unlike the conventional determination of the collision with the fixed traveling road and the background, it is possible to perform the collision determination with high accuracy while using a relatively simple algorithm, and to further improve the sense of reality of the game.

The hit determination is made based on the three vertices of the bottom surface of the ship (the projected surface is an isosceles triangle) and a predetermined point of the wave (the leading end, the trailing end or between the waves).

[Jet Ski Tilt Processing (Step 2)
07)] Next, the jet ski tilting process performed in step 207 of FIG. 7 will be described with reference to FIG. 13 and FIG. The jet ski inclination process is performed in response to the wave inclination changing every moment.

First, the CPU 101 calculates the first derivative f ′ (x, z) of the wave undulation at the jet ski position (x, z) associated with the current interruption (step 207).
-1). Next, the wave angle α = tan ⁻¹ f ′ (x, z) is calculated using the first derivative f ′ (x, z) (step 207-2: see FIG. 14).

When this is completed, the jet ski angle β of the previous time (current time), that is, the angle formed by the axis of the jet ski in the front-rear direction (the angle formed with respect to the x and z planes of the reference coordinate system (world coordinates) (vertical angle) )) Is read from the memory (step 207-3). Then, the angle difference E is obtained by performing the calculation of α−β = E (step 207-4), and E ′ = E−ΔE is calculated using the predetermined minute angle ΔE (step 207-5). Further, β = β + E ′ is calculated, and the calculated value β is stored for the next interruption (steps 207-6 and 7).

This processing is performed for a fixed time Δ earlier than the wave motion.
By repeating at every t, the angle β of the jet ski gradually approaches the angle α of the wave. As a result,
There is no sense of incongruity in the angle relationship between the jet ski and the waves, and the jet ski is always expressed as if riding along the slope of the waves.

[Wake Expression Processing (Step 208)] Next, the wake expression processing performed in step 208 of FIG. 7 will be described with reference to FIGS. here,
It aims to express the wake that remains on the water surface as a jet ski (own ship and other ships) sails as an afterimage. The wake is represented by a connection of a large number of polygons.
Each polygon forming this wake is called a wake polygon.

When the CPU 101 enters the interrupt associated with the current frame, it first determines whether or not the display of the currently processed wake polygon is being expanded using the flag that has been previously processed (the flag that has been previously generated). A determination is made (step 208-1). Only when the determination is “NO”, that is, when a new wake polygon is to be drawn, the current travel position and angle of the jet ski are designated (copied) as the end position and angle of the wake polygon to be drawn ( Step 208-2). The current traveling position and the traveling angle of the ship are stored in the storage means until the wake polygon disappears.

After the end processing, the current travel position and angle of the jet ski are designated (copied) as the position and angle of the tip of the wake polygon to be drawn (step 208-3).

Next, it is determined whether or not a condition for stopping (cutting) the extension of the wake polygon has occurred (step 208).
-4). The conditions are as follows: 1) The wake polygon continues to elongate for a set time.
Or, it has extended to the set distance (see FIG. 17). 2) The angle between the end and the tip of the wake polygon has reached the set angle, that is, the perpendiculars (center lines) extending from the center of the end have exceeded the set angle. At this time (see FIG. 18), 3) The jet ski (the wake source) is separated from the space or plane (L) where the wake remains by a set value or more (see FIG. 19).
It is mentioned. In this step 208-4, "Y
At the time of the determination of “ES”, since any one of the three conditions is satisfied, next, three of the three conditions are satisfied.
A special determination is made as to whether or not the second condition has occurred (step 208-5).

According to the above two determinations, neither cut condition occurs (“NO” in step 208-4), or
A cut condition has occurred, but if the condition is not the third height condition ("NO" in step 208-5), then
It is determined whether the elongation has already been completed and there is a retained wake polygon (step 208-6). If the determination is "NO", the wake polygons that have been expanded until now through the processing of the leading edge copy in step 208-3 are retained, and further expansion is stopped (step 208-).
7). If there is a wake polygon already held, the process of step 208-7 is skipped.

Next, it is determined whether a predetermined time has elapsed from the start of holding the currently held wake polygon (step 208-8). If the determination is "YES", the wake polygon is contracted until the wake polygon is completed in order to complete the display of the wake polygon and to avoid an increase in the amount of calculation (step 208-9, step 208-9). 1
0). As a result, the polygon that has been held at a certain length until then shrinks for each frame, and finally disappears from the screen. In other words, the length of the wake polygon is gradually reduced by a predetermined ratio or other method for each frame (every 1/60 second). As a result, a feeling of afterimage of the wake that disappears soon can be exhibited.

Alternatively, the texture applied to the wake polygon is changed to a pattern in which the wake disappears, or the wake polygon is translucently processed in this manner. The translucent processing means that new color data is created by combining the wake polygon color data with the water surface color data. Thus, by performing this translucent process for each frame, the color of the wake polygon gradually approaches the color of the water surface (field).

In the present invention, the field is a water surface, but is not limited to this. For example, in a video game that simulates driving a car, the ground, the course of a race track, and the like are fields. In the case of a fighting game, the field is a background image. In short, a field is a background to which a wake or afterimage is given. The formation of the moving trace of the object in this way is not limited to the expression of the wake, but can be applied to a slip trace or a footprint of a car.

"YES" in step 208-5 described above.
Is determined, for example, when the jet ski jumps greatly from the water surface, and in such a case, the wake polygon does not physically appear. Then, a command to stop drawing the wake polygon is issued (step 209-11).

Then, data necessary for drawing the wake polygon processed in this manner (the currently expanded wake polygon and / or the currently held wake polygon (including the one currently under contraction processing)) is given. This also includes a specific distance for determining two points in the direction of the ends of the leading end and the trailing end of the wake polygon, so that a quadrilateral connecting these four points is the wake polygon. The drawing device 112 attaches a texture to the quadrilateral so that the pattern at the front end and the end is connected.

The process of FIG. 15 is repeated for each frame. Therefore, for example, as shown in FIG. 17, if the wake polygon starts extending at time t = ts, t = tm
Until ax, the same wake polygon S0 extends (that is, is rewritten every frame so as to extend), is cut off at the time t = tmax, and the next wake polygon is S1.
Is started. After the cut wake polygon S0 is displayed for a predetermined time, it shrinks from the terminal side and disappears from the screen. It is also cut off according to the length of the wake polygon. For this reason, even if the speed of the jet ski is high,
The wake polygon is not stretched unnecessarily, and wake polygon processing without a sense of incongruity is performed.

FIG. 16 shows a state in which three wake polygons S0 to S2 are connected and drawn. In time, S0,
The newest wake polygon S0 in order of S1 and S2
It is destined to disappear from the screen while being shortened from the terminal side. In the figure, v0 is the end direction of the wake polygon S0, v1 is the tip direction of the wake polygon S0 and the end direction of the wake polygon S1, and v2 is the wake polygon S0.
1 are vectors respectively indicating the tip direction and the end direction of the wake polygon S2. The first wake polygon S0 draws a quadrangle Pr0P10Pl1Pr1, the second wake polygon S1 draws a quadrangle Pr1Pl1Pl2Pr2, and the third wake polygon S2 draws a quadrangle Pr2Pl2Pl3Pr3.

Further, as shown in FIG. 18, when the opening angle θ between the traveling direction v1 of the jet ski B and the direction v0 indicating the end angle of the wake polygon S exceeds the limit value θmax at which the wake polygon can be bent and drawn. The wake polygon S is automatically cut off, and a new wake polygon is created. Thus, when the jet ski B turns with a curvature equal to or more than a predetermined value, a wake polygon with a less uncomfortable feeling is drawn by appropriately following the curvature.

Further, as shown in FIG. 19, the jet ski B has a predetermined height hma from the space or plane L where the wake remains.
If you float more than x, the display of the wake while you are floating will be interrupted.

As described above, the wake polygon is expressed as if it is expanding or contracting for the player (player). In other words, the coordinates of the end points of the trace polygon are changed according to the progress of the moving body (or as time elapses), and the trace polygon is redrawn for each interrupt so that the trace polygon appears to be expanded or contracted.

Furthermore, by gradually erasing the wake, the effect of the game can be enhanced without disturbing the field of view of the player (player).

[Swinging process of casing (step 209)]
Next, the swinging process of the housing 1 performed in step 209 of FIG. 7 will be described.

In this embodiment, the jet ski hit determination / process is executed in step 206 in FIG.
The current height b of the jet ski is Δ
t is calculated. This height b is controlled in response to the undulation height of the wave. In step 207 in FIG. 11, the inclination of the jet ski is also calculated, and this inclination is also linked to the swell height of the waves.

Therefore, the CPU 101 determines in step 20
At step 9, a pressure control signal of an electric quantity corresponding to the height b and the inclination of the jet ski calculated at that time is generated, and this signal is sent to the electric pressure controller 25 of the casing 1. .

As a result, the electric pressure controller 25 adjusts the pressure in all the upper and lower pressure chambers of the center cylinder 12 in accordance with the control signal value. Thereby, the center cylinder 1
Since the stroke 2 is extended or contracted, the casing 1, ie, the saddle 20, swings in the pitching direction as shown in FIG. 4 or 5 described above.

This swinging process is performed at regular time intervals Δt. On the other hand, the swell height of the wave is calculated and processed independently and one by one. That is, the factor of the undulation height of the wave is inevitably reflected in the swing processing of the saddle portion 20.

As a result, even when the jet ski is not sailing, the swell height of the wave fluctuates due to the composite wave of the sine wave and the cosine wave. You can feel that you are riding on a water vehicle. In addition, since the waviness height and angle change while sailing, the movement of the saddle portion 20 in the pitching direction is controlled in an appropriate pitching range and speed according to the values. This allows the player to experience the size of the waves and the sense of speed, thereby improving the realism of the game.

[Display processing of object submerged in water (step 210)] In step 210 of FIG. 7, an object submerged in water is included in the shape data (polygon data) processing accompanying the behavior of the jet ski. Are displayed as shown in FIGS. 20 and 21.

First, the CPU 101 draws a polygon representing the water surface WL (step 210-1 in FIG. 20). Subsequently, for example, a polygon of a rock RK is drawn thereon (step 212-1). In the drawing of the rock RK, the calculated coordinates of the rock RK are drawn in advance in a part RK 'submerged in water with a color (for example, brownish blue) indicating that they are submerged, and a mesh Perform processing.

By creating the modeled rock polygons in advance, even if a Z buffer is not used,
By simply drawing a modeled rock polygon, a rock having a part submerged in water can be easily represented. This is very convenient because even a data processing unit (board) that does not have a translucent display function can easily perform such display with a relatively small amount of computation as compared with the Z buffer.
That is, by always drawing the water surface ahead of the underwater object, the sorting time in the Z sort can be saved.

In the above-described embodiment, the description has been given of the mode in which the present invention is applied to water vehicles such as jet skis and motor boats. Also applicable to In this case, the time-varying field is the flow of underwater water, the flow of airflow in the air, and the like.

In the description so far, R in FIG.
The OM corresponds to a storage medium in which application software is stored.

Embodiment 2 [Description of Second Structure of Vehicle Amusement Machine] Next, with reference to FIGS. 22 to 32, a predetermined control signal is transmitted to and from the image processing apparatus of the present invention, and a character displayed on the screen is displayed. A description will be given of a structure of a second embodiment of a vehicle amusement machine configured to perform the same movement as (for example, a jet ski).

FIG. 22 is an overall external view of the vehicle game machine 100. As shown in FIG. A jet ski body 3000 imitating a jet ski is swingably supported on a flat base 2000, and a monitor television 900 is disposed in front of the jet ski body 3000. A screen 900a of the monitor television 900 is It is a large screen that forms a vertical plane in front of the player on the jet ski body 3.

The hull cover 4000 of the hull 3000 is long in front and rear, a rod-like steering handle 500 is provided at the front of the hull, and a steering shaft is provided with a steering angle sensor 1000 for detecting a steering angle. Same steering wheel 50
One of the left and right end grips 500a and 500b is capable of accelerator operation, and is provided with an accelerator operation sensor 110 for detecting a rotation angle.

A long seat 600 extends forward and backward behind the steering haddle 500, and the player
0 and sit on the right and left side
The foot is put on 0.

The hull 3000 has two parallel main frames 200 extending in the front-rear direction, and a wide frame frame 220 on the left and right is integrally connected via a cross member 210 to the hull cover 4000. Is covered. The base 2 under the front of the main frame 200
000, a pair of left and right bearing plates 250, 25
0 is erected, a support shaft 260 is erected between the two, and a crank member 270 is pivotally supported on the support shaft 260 at the upper end.

Then, on the base 2000, the bearing plates 250, 2
The support plate 280 erected on the rear side of the spherical bearing 29 has a spherical bearing 29.
Front air cylinder 30 whose rear end is supported via
0 extends forward, and the front air cylinder 300
The distal end of an extendable rod 300a protruding forward is supported by the crank member 270 by a pin 310.

On the other hand, a front placket 230 is suspended downward from the front end of the main frame 200, and the lower end of the front placket 230 and the front end of the crank member 270 are connected via a spherical bearing 320.

Therefore, when the rod 300a of the front air cylinder 300 is expanded and contracted, the crank member 270 swings and the main frame 200 can swing up and down via the front placket 230 (FIGS. 23 and 26). reference). In addition, the front air cylinder 300 has two front and rear cylinders connected in series with a common rod 300a.

On the other hand, a support shaft 360 is provided between a pair of bearing plates 350 erected on the right and left at the rear of the base 2.
A swing support 370 pivotally supported at the lower end by the support shaft 360 and swinging back and forth extends upward, and a spherical bearing 380 is protruded from an upper end of the swing support 370. A support shaft 390 protrudes rearward from the upper center of a rear bracket 240 vertically suspended at a rear portion of the main frame 200,
The support shaft 390 is connected to the spherical bearing 380.

Thus, the rear part of the main frame 200
The main frame 200 is supported by the swing support 370 via a spherical bearing 380 and a support shaft 390, and the main frame 200 is allowed to move back and forth by the swing support 370, and is tilted left and right about the support shaft 390. It is free.

As shown in FIG. 25, the rear placket 240 is erected vertically to the left and the lower end thereof
Is provided. Two rear air cylinders 410, 420 connected in series back to back are provided below the rear bracket 240, and the tip of the rod 410a of one of the rear air cylinders 410 is connected to the support shaft 400.
And the other end of the rod 420a of the rear air cylinder 420 is connected to the spherical bearing 440 via a spherical bearing 430.
Through the bracket 450 near the right edge of the base 2000
It is supported by.

Therefore, rear air cylinders 410 and 42
0 is a spherical bearing 430 in which the tip of the upper rod 410a is biased to the left of the rear placket 240 integrated with the main frame.
And a spherical bearing 440 in which the tip of the lower rod 420a protrudes from the placket 450 near the right edge of the base 2
And is in an inclined position as shown in FIG.

Rear air cylinder 41 connected in series
0, 420, when the hull 3000 is in the horizontal state as shown in FIGS. 25 and 27, one rear air cylinder 410 contracts the rod 410a and the other rear air cylinder 420 extends the rod 420a. In state.

Then, as shown in FIG.
When 00, 220 is lowered rightward and tilted to the right, the rod 410a of the contracted rear air cylinder 410 is extended, and both rear air cylinders 410, 420 are extended.

Conversely, as shown in FIG.
When 0, 220 is lowered to the left and tilted to the left, the rod 420a of the extended rear air cylinder 420 contracts,
Both rear air cylinders 410 and 420 are in a contracted state.

The pressure applied to the rear air cylinders 410 and 420 by an electropneumatic regulator (electric pressure controller) whose air pressure is controlled by an electric signal is variable.
It becomes difficult to expand and contract the rod 420a, and conversely, if the pressure is low, it becomes easier to expand and contract the rods 410a and 420a.

That is, when the player on the hull 3000 moves his or her weight from side to side, the lower the pressure, the easier the hull 3
000 can be tilted. This hull 300
The rightward and leftward tilting is detected by the tilt sensor 120.

As described above, the hull 3000 can be tilted by the player's weight shift, and the hull 3000 can be forcibly tilted by positively driving the rear air cylinders 410, 420. is there.

FIG. 30 is a schematic block diagram of a control system of the vehicle game machine 100 as described above. Real Vehicle Amusement Machine 10
The main board 500, which controls and controls the entirety of the control unit 0, advances the game, and the control board 510 controls the driving of the front air cylinder 300 and the rear air cylinders 410, 420.

Detection signals from the steering angle sensor 1000, the accelerator operation sensor 110, the inclination sensor 120 and the like are input to the main port 500.
0 and the detection signal of the inclination sensor 120 are separately input directly to the control board 510. From the main board 500 to the control board 510, the hull 3
An instruction signal for rocking the hull 3000 is output from the control board 510 to the main board 500.

Since the vehicle amusement machine 100 simulates a jet ski, the monitor telepier 900 shows an image of a sub-level as an image, and the player on the hull 3000 sees the image as if he or she actually saw the image. You can get the feeling of floating on a jet ski on the sea.

The main board 500 outputs an image instruction signal to the image processing device 520 along with the progress of the game, and the image processing device 520 processes the image instruction signal, outputs an image signal to the monitor television 900, and outputs an image. Project.

On the other hand, the control board 510 includes the steering angle sensor 1
00, an instruction signal from the main board 500 together with a detection signal from the inclination sensor 120, and controls various solenoid valves and an electropneumatic regulator of the pneumatic circuit 530 to control the front air cylinder 300 and the rear air cylinder 41.
0,420 is driven.

FIG. 31 shows the pneumatic circuit 530. The air pressure is supplied to the pressure reducing valve 62 via the stop valve 600 and the filter 610.
0,630, and one pressure reducing valve 620
Is an electropneumatic regulator 6 for each of the two branched routes.
40,700.

The other side of the electropneumatic regulator 640 is 5
The other two ports of the five-port three-position switching valve 650 are connected to the muffler, and the other two ports are the two ports of the two-port two-position switching valve 660 and 670, respectively. Connected to this 2
The other ports of the port 2 position switching valves 660 and 670 are respectively connected to both ports of the front cylinder of the front air cylinder 300.

The pressure reducing valve 630 is connected to the head port of the rear cylinder of the front air cylinder 300 via a two-port two-position switching valve 680. The rod port of the rear cylinder is connected to another two-port. 2-position switching valve 69
Connected to 0.

The front air cylinder 300 is composed of two front and rear cylinders having a common rod 300a as described above, and applies a constant pressure to the rear cylinder on the extension side via two-port two-position switching valves 680 and 690. By maintaining the balance at all times and balancing the force acting on the contraction side due to the weight of the hull 3000 on which the player is riding,
The hull 3000 is normally stable, and has an air spring action at that time, and drives the other cylinder to drive the hull 30.
The swing of 00 is also possible with low air pressure.

Air pressure controlled by an electropneumatic regulator 640 is applied to both ports of the front cylinder via a 2-port 2-position switching valve 660, 670, which is switched and controlled by a 5-port 3-position switching valve 650. So
It is possible to control the stroke position and the moving speed of the rod 300a.

On the other hand, the electropneumatic regulator 700 on the other route branched from the pressure reducing valve 620 has a four-port
One of the cylinders 4 of the rear air cylinders 410 and 420 via the position switching valve 710 and the two-port two-position switching valve 720
Connected to 10 rod-side ports and 4
Port 2 position switching valve 730 and 2 port 2 position switching valve 74
0 is connected to the rod side port of the other cylinder 420.

The head-side ports of the cylinders 410 and 420 are connected to two-port two-position switching valves 750 and 760, respectively, and the other ports of the two two-port two-position switching valves 750 and 760 are connected to one port to provide a flow control valve. 770.

Unlike the front air cylinder 300, the rear air cylinders 410 and 420 do not have a common rod, but are independent cylinders 410 and 420 having rods 410a and 420a, respectively. Is pressure-controlled.

Now, assuming that the hull 3000 is in a horizontal state as shown in FIG. 27 and running at a speed that is an accelerator operation, the air pressure P corresponding to the steering angle φ as shown in FIG.
Is controlled. In FIG. 32, the vertical axis is the air pressure P, the right horizontal axis is the steering angle φ to the right with respect to the origin, and the left horizontal axis is the steering angle to the left.

Assuming that the player operates the steering wheel 5 rightward, the air pressure P of the cylinder 410 (solid line in FIG. 32) decreases as the right steering angle increases, and the cylinder 4
At 20 (the broken line in FIG. 32), the constant air pressure P ₀ is maintained. Therefore, in the state of FIG.
When the player moves his / her weight rightward, it becomes easy to tilt the hull 3000 to the right as shown in FIG. 28. As the right rudder angle φ increases, the hull 3000 easily tilts to the right. Becomes

Conversely, when the steering wheel 500 is operated to the left to increase the left steering angle φ, the cylinder 410 maintains a constant air pressure P ₀ , the air pressure P of the cylinder S2 decreases, and the rod 420a of the cylinder 420 expands and contracts easily. When the player moves his weight to the left, it becomes easy to tilt the hull 3000 to the left as shown in FIG. 29, and the larger the left rudder angle φ, the easier the hull 3000 to tilt to the left.

The rudder angle and the inclination of the hull 3000 determine the turning radius of the hull 3000 in the game.
Inputs the inclination of the hull together with the steering angle from the detection signals of the steering angle sensor 1000 and the inclination sensor -120, and the turning radius is set smaller as the values are larger. That is, a sharp turn is enabled.

The above control is an example at a certain traveling speed. When the speed is changed by operating the accelerator, the inclination angle of the inclined air pressure characteristic line of the cylinder 410 and the cylinder 420 in FIG. 32 changes. Become loose,
Therefore, it becomes difficult to tilt the hull due to weight shift.

Therefore, it is difficult for the player to smoothly carry out a desired turning by appropriately moving the weight to the left and right together with the operation of the steering wheel in accordance with the operation of the accelerator, but if the steering wheel operation and the weight movement are not appropriate. It is a place that requires skill because it can not turn as expected. The point that requires this technique is that it is intriguing. By repeatedly playing, the technique advances and the play becomes more and more interesting.

It should be noted that the vehicle amusement machine 100 is set so that there are various obstacles on the traveling path in the game, and waves are generated from large waves to small waves.
00 and the hull 3000
Can be swung. At this time, the hull 3000 swings up and down by driving the front air cylinder 300 to cause pitching, and the rear air cylinders 410 and 420 are positively driven to swing the hull 3000 left and right to cause rolling. Can also.

[0185]

As described above, according to the image processing apparatus and the image processing method of the present invention, the height of the same position on the surface of the field is changed with the lapse of time, and the object is placed on the field. Move the object while it is involved, and in particular, create data on the participant (for example, wake) that indicates the participant's involvement on the field, determine the hit state of the object's field surface, and tilt the field surface To correct the tilt of the object according to the
The display of objects partially submerged in the water in the three-dimensional virtual space is performed using mesh processing, so that the oscillating field such as the water surface where the target object such as a motor boat or jet ski travels Can be expressed more realistically and richly. Further, the degree of contact (contact) between the water surface and the jet ski or the like in the three-dimensional virtual space can be accurately determined, whereby the height of the target object can be accurately reflected on the image. Furthermore, it is possible to accurately represent a wake or an object immersed in water while suppressing the amount of calculation.

Further, according to the game device of the present invention, there is provided a vehicle having means for providing the player with operation information in a real space and a swingably supported housing, and a three-dimensional virtual space. An image processing device that creates image data that moves a character representing the vehicle in response to the operation information on the field of the game device. A field rocking means for changing the height of the field surface by the field rocking means, and a housing rocking means for rocking the housing of the vehicle in response to the height change of the field surface by the field rocking means. Can fully experience the feeling that the vehicle on which he / she is riding is sailing on the water surface, and can enhance the sense of presence and interest in the game.

In addition, the vehicle amusement machine of the present invention can swing the hull in various ways with a small number of cylinders, and can swing the boat in the same manner as the actual jet ski operation. And, coupled with the video on the monitor television, the player can enjoy exciting play as if he were actually driving a jet ski.

In addition, since the moving trace of the moving body is drawn and erased as time passes, the burden on drawing can be reduced. In addition, since the drawn trace of movement is appropriately erased, the effect of rendering can be enhanced while keeping the visibility of the game player unobstructed.

[Brief description of the drawings]

FIG. 1 is an external view of a jet ski game apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a suspension mechanism of a housing of the game device.

FIG. 3 is a system diagram of an air piping system of a suspension mechanism.

FIG. 4 is an explanatory diagram illustrating movement of a suspension mechanism in a pitching direction.

FIG. 5 is an explanatory diagram illustrating movement of a suspension mechanism in a pitching direction.

FIG. 6 is a schematic block diagram of a data processing unit of the game device.

FIG. 7 is a schematic flowchart of an example of an overall process performed by a CPU.

FIG. 8 is a schematic flowchart of a wave undulation expression process performed by a CPU.

FIG. 9 is an explanatory diagram schematically showing a table of wave undulation height set values.

FIG. 10 is a diagram illustrating a display area and a visual field range.

FIG. 11 is a flowchart of a wave and ship collision determination executed by the CPU.

FIG. 12 is a one-dimensional explanatory diagram illustrating hit determination.

FIG. 13 is a flowchart of a ship inclination correction executed by the CPU.

FIG. 14 is an explanatory diagram of inclination correction of a ship.

FIG. 15 is a flowchart of a wake polygon drawing process performed by the CPU.

FIG. 16 is a diagram illustrating the connection of wake polygons.

FIG. 17 is a diagram illustrating a process of expanding a wake polygon and conditions for stopping the process.

FIG. 18 is a diagram illustrating angle conditions of a wake polygon.

FIG. 19 is a diagram illustrating a height condition between a wake polygon and a water surface.

FIG. 20 is a partial flowchart showing display processing of a rock partially submerged in water.

FIG. 21 is a diagram illustrating a process of displaying a rock partially submerged in water.

FIG. 22 is an overall external view of a vehicle amusement machine according to a second embodiment of the present invention.

FIG. 23 is a partially omitted side view showing a main part of a hull swing mechanism.

FIG. 24 is a plan view of the same.

FIG. 25 is a rear view of the same.

FIG. 26 is a side view of a main part in another state.

FIG. 27 is a rear view of relevant parts when the hull is in a horizontal state.

FIG. 28 is a rear view of the main part when the hull is inclined rightward.

FIG. 29 is a rear view of relevant parts when the hull is in a leftward tilt state.

FIG. 30 is a schematic block diagram of a control system.

FIG. 31 is a diagram showing a pneumatic circuit.

FIG. 32 is an explanatory diagram for describing air pressure control of a rear cylinder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing part 2 Data processing part 11 Mechanical base 12-14 Cylinder 17 Crank 18 Moving base 20 Saddle part 21 Handle part 21A Handle 21B Accelerator 21C View change switch 25 Electric pressure controller 30 Processing main body 101 CPU 102 ROM 103 RAM 108 Coprocessor 109 Terrain data ROM 110 Geometallizer 111 Shape data ROM 112 Drawing device

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 7/18 H04N 7/18 P G06F 15/62 360 (72) Inventor Daishi Yasuda 1 Haneda 1 No. 2-12 in Sega Enterprises Co., Ltd. (72) Inventor Mikiyoshi Yamada 1-2-12 in Haneda, Ota-ku, Tokyo Co., Ltd. In Sega Enterprises Co., Ltd. (72) Inventor Mitsuru Kawamura Ota in Tokyo 1-2-12 Haneda-ku, Sega Enterprises Co., Ltd. (72) Inventor Toshiyuki Maeda 1-2-12 Haneda, Ota-ku, Tokyo F-terms in SEGA Enterprises Co., Ltd. 2C001 AA00 AA03 AA09 AA16 BA00 BA02 BA05 BB00 BB10 BD00 BD07 CA00 CA04 CA05 CA09 CB01 CC02 5B050 AA03 BA08 BA09 CA04 CA09 EA24 EA27 FA02 FA10 GA02 5C05 4 AA01 DA09 EB07 FD03 FE01 FE16 GA04 HA15

Claims (47)

[Claims] 1. An image processing apparatus for processing image data for moving an object on a field in a three-dimensional virtual space, comprising: a field rocking means for changing the height of the same position on the surface of the field over time. And an object moving means for moving the object while involving the object on the field. 2. The field swinging means changes the height value of the same position on a two-dimensional plane serving as a reference of the field with the passage of time, and the object moving means changes the height value. The image processing apparatus according to claim 1, wherein a value of a height at which the object is located is calculated according to the following. 3. The field according to claim 1, wherein the field is a water surface set in the three-dimensional virtual space, and the target object is a boat such as a jet ski or a boat traveling on the water surface. The image processing apparatus according to any one of the preceding claims. 4. The method according to claim 1, wherein the field swinging means is configured to store a value of a wave height set on a two-dimensional plane serving as a reference of the field, and based on the value of the wave height,
4. A calculating means for calculating a movement of a two-dimensionally oscillating surface by synthesizing a sine wave and a cosine wave with respect to a value of the wave height. The image processing apparatus according to any one of the preceding claims. 5. The field oscillating means stores swell height data of a two-dimensional distribution set in advance corresponding to a two-dimensional position on a two-dimensional plane serving as a reference of the three-dimensional virtual space. Storage means; recognition means for periodically recognizing the current two-dimensional position of the object; reading means for reading the swell height data corresponding to the recognized two-dimensional position from the storage means; 5. An arithmetic unit for periodically calculating swell data of a water surface that waves two-dimensionally on the two-dimensional surface based on swell height data. Image processing device. 6. The storage means assigns the undulation height data to a plurality of blocks obtained by dividing the reference plane, and sets a value of the undulation height data of at least two blocks to be different. The image processing apparatus according to claim 4, wherein 7. The method according to claim 1, wherein the storage unit assigns the swell height data to a plurality of blocks obtained by dividing the reference plane, and the wave height value is set for each block. The image processing device according to claim 4 or 5, wherein 8. The storage device according to claim 4, wherein the storage means has a memory having a multi-layer structure, and stores different types of the undulation height data for each layer of the memory. Image processing device. 9. The apparatus according to claim 4, wherein said calculating means is means for calculating periodically fluctuating swell data composed of a composite wave of a sine wave and a cosine wave. Image processing device. 10. The image processing apparatus according to claim 4, wherein said calculating means is means for calculating the composite wave for each of polygons corresponding to a plurality of grid positions. apparatus. 11. The field oscillating means includes: setting means for setting a plurality of display areas using the plurality of polygons as one object data; and displaying the polygons within a field of view among the plurality of display areas. 11. The image processing apparatus according to claim 1, further comprising: a specifying unit that specifies a polygon. 12. The determination means for determining whether or not the swell height data corresponding to the current two-dimensional position of the target object read this time is different from the previous swell height data by a predetermined value or more. Means for generating swell height data obtained by slightly increasing or decreasing the previous swell height data in accordance with the difference between the previous and current swell height data when the determination means determines that the difference is not less than a predetermined value. The image processing apparatus according to claim 4, further comprising: 13. The image processing apparatus according to claim 1, further comprising: a participant creating unit that creates participant data representing the participant's involvement on the field. . 14. The field is a water surface set in the three-dimensional virtual space, the target object is a ship such as a jet ski or a boat navigating on the water surface, and the participant is a ship on the water surface. The image processing apparatus according to any one of claims 10 to 132, wherein the wake is a wake created by the trajectory. 15. The participant creator includes, as data of the participant, data of a moving trace polygon that extends in accordance with a moving position and an advance angle of the target object on a two-dimensional surface serving as a reference in the three-dimensional space. 15. The image processing apparatus according to claim 13, further comprising data forming means for forming. 16. The moving trace polygon according to claim 16, wherein the data forming unit includes a unit that cuts the moving trace polygon in accordance with an extension length of the moving trace polygon, an extension time, or the advance angle. 16. The image processing device according to claim 15. 17. The data forming means according to claim 15, wherein said data forming means includes means for stopping drawing of said moving trace polygon when said object has risen a predetermined distance from said reference plane. Image processing device. 18. The participant creator, when the moving trace polygon is cut, draws the moving trace polygon thereafter for a certain period of time, and after the drawing of the certain time, the length of the moving trace polygon 2. A commanding means for issuing a command to draw while reducing the size of the image.
The image processing apparatus according to any one of Items 3 to 17. 19. The image processing apparatus according to claim 1, further comprising a hit judging means for judging a hit state between the object and the surface of the field. 20. The image processing apparatus according to claim 19, further comprising a correction unit that corrects a position of the object based on a result of the determination by the determination unit. 21. The correction means, comprising:
21. The method according to claim 20, wherein an amount of the object with respect to a vertical height position of a two-dimensional plane serving as a reference in a three-dimensional virtual space is corrected in accordance with a result of the determination by the hit determination means.
The image processing apparatus according to any one of the preceding claims. 22. The correction means, when the determination means determines that the surface of the field is at a height position higher than the height of the target object, corrects the target object in accordance with a drainage amount of the target object. Move vertically upwards,
When the determination unit determines that the field surface is at a lower height position than the target object, the target object is moved upward in the vertical direction by free fall of the target object. The image processing device according to claim 20. 23. An apparatus according to claim 21, further comprising a tilt correction unit configured to correct the tilt of the object in the three-dimensional virtual space according to a tilt of the field surface at a two-dimensional position on the two-dimensional plane. Image processing device. 24. The image processing apparatus according to claim 23, wherein the inclination correction unit is a unit that performs a process of gradually bringing the inclination of the object toward the inclination of the field surface at regular intervals. 25. The field according to claim 1, wherein the object is a water surface set in the three-dimensional virtual space, and the object is a ship such as a jet ski or a boat navigating on the water surface.
25. The image processing device according to any one of 9 to 24. 26. A drawing method for drawing a water surface set in a three-dimensional virtual space, wherein a transmission process is performed on an image of an object under the water surface so that the image of the object under the water surface is closer to the display screen than the image of the water surface. A drawing method characterized by being drawn. 27. A first means for displaying image data for displaying a water surface set in a three-dimensional virtual space, and a method for when an underwater part of an object at least partially immersed in the water surface is seen through the water surface. Means for creating image data of the object by giving a color when submerged in the water and performing mesh processing on the underwater portion. An image processing apparatus characterized in that: 28. An image processing method for processing image data for moving an object on a field in a three-dimensional virtual space, wherein the height of the same position on the surface of the field is changed over time, and the object is moved. While moving while involving on the field, a hit state of the object on the surface of the field is determined, and a two-dimensional surface serving as a reference in the three-dimensional virtual space of the target object according to the hit determination result An image processing method for correcting the amount of the object with respect to the vertical position of the object. 29. The field is a water surface set in the three-dimensional virtual space, and the object is a boat such as a jet ski or a boat navigating on the water surface.
The image processing method described in the above. 30. A vehicle comprising means capable of providing operation information by the player riding in a real space and a swingably supported housing, and the vehicle being represented on a field of a three-dimensional virtual space. An image processing device that creates image data for moving a character in response to the operation information; a game device that combines the image processing device with the image processing device; A game swinging means for swinging a chassis of the vehicle in response to a change in height of the field surface by the field swinging means. 31. The game device according to claim 30, wherein the field surface is a water surface set in the three-dimensional virtual space, and the vehicle is a boat such as a jet ski or a boat sailing on the water surface. 32. An image processing apparatus for processing image data for moving an object on a field in a three-dimensional virtual space, wherein the object moving means for moving the object while being involved in the field; A participant creating means for creating participant data representing the participant's involvement on the field. 33. A collision judging means for judging a hit state between the object and the surface of the field, and the participant creating means creates data of the participant in accordance with a result of the judgment. 32. The image processing device according to 32. 34. The field is a water surface set in the three-dimensional virtual space, the object is a ship such as a jet ski or a boat navigating on the water surface, and the participant is a ship on the water surface. 34. The image processing apparatus according to claim 33, wherein the wake is a wake. 35. The participant creating means, as data of the participant, data of a moving trace polygon that extends in accordance with a moving position and a leading angle of the target object on a two-dimensional plane serving as a reference in the three-dimensional space. 33. The image processing apparatus according to claim 32, further comprising data forming means for forming. 36. The image processing apparatus according to claim 35, wherein the data forming unit includes a unit that cuts the moving trace polygon in accordance with an extension length of the moving trace polygon, an extending time, or the advance angle. apparatus. 37. The image processing apparatus according to claim 36, wherein said data forming means includes means for stopping drawing of said moving trace polygon when said target object has risen a predetermined distance from said reference plane. 38. The participant creator, when the moving trace polygon is cut, draws the moving trace polygon thereafter for a certain period of time, and after the drawing of the certain time, the length of the moving trace polygon 37. The image processing apparatus according to claim 36, further comprising: a command unit that issues a command to draw while reducing the size of the image. 39. A swinging member on which a player rides, steering means provided on the swinging member, steering angle detecting means for detecting a steering angle of the steering means, and tiltably supporting the swinging member. And a pressure control means for controlling a pressure applied to the left and right tilt cylinders based on a detection signal of the steering angle detection means. And a control means for transmitting a predetermined control signal to and from the image processing apparatus according to (1). 40. The left-right tilting cylinder has a configuration in which two cylinders are connected in series, and one of the cylinders is extended while the other cylinder is contracted to keep the swinging member horizontal, and the pressure control means 40. The method according to claim 39, wherein one of the two cylinders is selected according to a detected steering angle direction of the steering angle detection means, and a pressure acting on the selected cylinder is reduced according to the detected steering angle. Vehicle amusement machine. 41. Tilt angle detecting means for detecting the left and right tilt angles of the swinging member, and turning on the game based on the detected tilt angle of the tilt angle detecting means and the steering angle detected by the steering angle detecting means. 41. The vehicle game machine according to claim 39, further comprising a turning radius determining means for determining a radius. 42. An accelerating operation means provided on said swinging member, and accelerating operation detecting means for detecting an operation state of said accelerating operation means, wherein said turning radius determining means detects said inclination angle detecting means. 42. The turning radius in a game is determined based on a tilt angle, a steering angle detected by the steering angle detection means, and an acceleration operation state detected by the acceleration operation detection means. The described vehicle amusement machine. 43. A front-rear tilting cylinder for tilting the swinging member back and forth, wherein the swinging member is capable of tilting back and forth as well as left and right. Vehicle amusement machine described in. 44. A moving picture display means is provided in front of the swinging member, and a player riding on the swinging member can operate while watching a moving picture displayed on the moving picture display means. 44. The vehicle amusement machine according to any one of 39 to 43. 45. A game device for displaying an image obtained by capturing a virtual space from a predetermined position, comprising: drawing means for drawing a moving trace of a moving object moving in the virtual space; A erasing means for erasing the game device. 46. A game device for displaying a moving body moving in a virtual game space, wherein the drawing means draws a moving trace left in the virtual space by the moving body, and the display area of the moving trace changes over time. A game device comprising: an area phenomenon means for decreasing the size of the game device. 47. A reading means for reading a current position of the moving body, wherein the drawing means draws a trace of movement of the moving body within a predetermined range from the current position. 3. The game device according to claim 1.