JP5826244B2 - Game system - Google Patents

Description

  The present invention relates to a screen scroll device for scrolling a display screen of a touch panel, a screen scroll method, and a game device including the screen scroll device, for example. More specifically, the present invention measures the distance at which the touch operation is performed based on the input coordinates, and causes the display screen to inertial scroll according to the distance.

  2. Description of the Related Art Conventionally, in an information processing apparatus such as a mobile phone terminal or a personal computer, a display screen displayed on a display scrolls up, down, left, and right according to an operation by an input device. For example, when a mobile phone terminal is provided with a touch panel, the user can scroll the display screen by operating the touch panel with a finger.

  Conventionally, there has been known a scroll control device that controls scrolling of a display screen so as to be closer to a more natural physical phenomenon (Patent Document 1). The invention described in Patent Document 1 controls the displacement scroll state while the coordinate input from the coordinate input means is present, and controls the inertia scroll state after the coordinate input from the coordinate input means disappears. Specifically, the invention described in Patent Document 1 scrolls the display screen with a vector equal to the change vector of the input coordinate in the displacement scroll state, and on the other hand, immediately before the coordinate input disappears in the inertia scroll state. Control is performed to scroll the display image with a vector proportional to the input coordinate change vector. That is, in the invention described in Patent Document 1, while the user is operating the touch panel with a finger, the display screen is scrolled along the locus of the finger. On the other hand, in the invention described in Patent Document 1, when the user performs an operation such as flipping the screen of the touch panel with a finger, the display screen is scrolled according to the change vector at the moment when the screen is flipped. The scrolling speed is gradually reduced as time passes.

JP-A-10-161628

  By the way, at present, the touch panel can be increased in size and its application is diversifying. For example, a game apparatus has been developed in which a game image is displayed on a touch panel and a user can perform an input operation related to the progress of the game by touching and operating the touch panel with a finger. In particular, by mounting a large touch panel on a game device and executing an action game, it is possible to provide a highly realistic game to the user.

  However, when an action game is provided by a large touch panel, the user needs to operate the touch panel without hesitation. For example, the user progresses the game by selectively repeating an operation of touching one point on the touch panel, an operation of tracing the touch panel with a finger, and an operation of flipping the screen of the touch panel with a finger. In such a situation, as in the invention of Patent Document 1 above, in the inertial scroll state after the coordinate input from the coordinate input means is lost, a vector proportional to the change vector of the input coordinate immediately before the coordinate input disappears is displayed. If the image is scrolled, there is a problem that scroll control unintended by the user is performed. That is, in the invention of Patent Document 1, when the user performs an operation of flipping the screen of the touch panel with a finger, the display screen is scrolled according to a change vector at the moment when the screen is flipped. However, there is a problem that when the user touches one point on the touch panel and the screen is rushed and flips the screen quickly, the display screen scrolls greatly without the user's intention. It was.

  Therefore, there is a need for a screen scroll device, a screen scroll method, and a game device in which the display screen is scrolled by a user's intuitive operation while preventing the display screen from being scrolled by a user's erroneous operation.

Therefore, the inventors of the present invention have made extensive studies on the means for solving the problems of the above-described conventional invention, and as a result, after the coordinate input to the coordinate input means has been lost, the user is required to perform scroll control similar to inertia. By controlling the display screen to be scrolled by the amount of displacement according to the distance traced on the touch panel screen, it is possible to prevent the display screen from being scrolled due to an erroneous operation by the user, and to display by an intuitive operation by the user. The inventor found that the screen can be scrolled. And based on the said knowledge, it came to the idea that the subject of a prior art could be solved, and completed this invention.
Specifically, the present invention has the following configuration.

The first aspect of the present invention relates to the screen scroll device 10.
A screen scroll apparatus 10 according to the present invention includes an image display unit 1, an image storage unit 2, a coordinate input unit 3, a coordinate storage unit 4, and a control unit 5.
The image display unit 1 can display an image. The image storage unit 2 stores image information displayed on the image display unit 1.
The coordinates in the image display means 1 are input to the coordinate input means 3.
The coordinate storage means 4 receives the touch coordinates in which the coordinates are first input to the coordinate input means 1, the release coordinates immediately before the coordinates are not input to the coordinate input means 3, and the release coordinates after the touch coordinates are input. And a plurality of sampling coordinates input to the coordinate input means 3 until this time.
The control means 5 reads the image information from the image storage means 2 and causes the image display means 1 to display an image, and displays the image display means 1 based on the information of each input coordinate stored in the coordinate storage means 4. Control to scroll the screen.
Specifically, in the displacement scroll state from when the touch coordinates are input to the coordinate input means 4 to when the release coordinates are input, the control means 5 has a displacement amount corresponding to the change vector of each input coordinate. Control to scroll the display screen with.
On the other hand, in the inertial scroll state after the release coordinates are input, the control means 5 responds to the scroll distance, which is the sum of the distances between the touch coordinates read from the coordinate storage means 4, each sampling coordinate, and the release coordinates. The display screen is scrolled with the amount of displacement.

In the displacement scroll state while coordinates are being input to the coordinate input means 4 as in the above configuration, the display screen is scrolled with a displacement amount corresponding to the change vector of each input coordinate, so that the locus of the user's finger can be obtained. Scroll the display screen along. On the other hand, in the inertial scroll state after coordinates are no longer input to the coordinate input means 4, the display screen is displayed with a displacement corresponding to the scroll distance that is the sum of the distances between the touch coordinates, each sampling coordinate, and the release coordinates. By scrolling, the display screen can be scrolled according to the distance that the user traces the screen with a finger.
As described above, the present invention scrolls the display screen according to the distance that the user traces the screen with his / her finger. Therefore, even if the user accidentally touches the screen instantaneously, the display screen is displayed. The screen does not scroll greatly. Therefore, according to the present invention, it is possible to prevent a situation where the display screen is largely scrolled due to a user's erroneous operation.

In addition, for example, when a user who plays an action game provided by a large touch panel wants to scroll the display screen, he / she naturally traces the screen with a long trajectory and then lifts his / her finger from the screen. It was found. In particular, when the user desires to scroll the display screen greatly, the user performs the operation of tracing the screen with a relatively long trajectory, while the user desires to scroll the display screen slightly. It was found that the user traces the screen with a relatively short trajectory.
In this respect, the present invention changes the amount of displacement for scrolling the display screen in the inertial scroll state according to the distance the user traces the screen with his / her finger. The screen is scrolled, and when the user traces the screen with a small trajectory, the screen is scrolled small. For this reason, the screen scroll device of the present invention allows the user to intuitively execute the scroll operation.

  In the screen scroll device 10 of the present invention, the control device 5 performs control in the inertial scroll state when the release distance is input to the coordinate input means 3 and the scroll distance is equal to or greater than a predetermined threshold. When the scroll distance is less than a predetermined threshold, it is preferable to perform control to stop scrolling the display screen.

  As in the above configuration, by scrolling the display screen only when the scroll distance, which is the sum of the distances between the input coordinates, is equal to or greater than a predetermined threshold, the user can accidentally and instantaneously enter the screen. You can control the display screen not to scroll if you touch it. For this reason, it is possible to effectively prevent the display screen from scrolling due to a momentary misoperation of the user in a situation where a touch operation not required by the user is required, such as when an action game is provided by a large-screen touch panel. .

The screen scroll device 10 of the present invention preferably further includes coordinate extraction means 6. The coordinate extraction unit 6 extracts a plurality of sampling coordinates input to the coordinate input unit 3 from the coordinate storage unit 4 within a predetermined time immediately before the release coordinates are input to the coordinate input unit 3.
In this case, in the inertia scroll state, the control means 5 scrolls the display screen with an amount of displacement corresponding to the scroll distance that is the sum of the distances between the sampling coordinates extracted by the coordinate extraction means 6 and the release coordinates. It is preferable to perform control.

  As in the above configuration, the display screen is displayed in accordance with the sum of the distances between the sampling coordinates and the release coordinates input to the coordinate input means 3 within a predetermined time immediately before the release coordinates are input to the coordinate input means 3. By changing the amount of displacement to be scrolled, it is possible to perform scroll control that appropriately reflects the user's intention. In other words, if the sum of all input coordinates from the first touch coordinate to the release coordinate is always obtained, for example, when the user lifts his finger after slowly tracing the screen with his finger. Although the screen tracing speed is slow, the display screen may scroll greatly. However, such scroll control is unnatural. Therefore, the user traces the screen within the predetermined time by obtaining the sum of the distances between the coordinates input within a predetermined time (for example, within 1 second) immediately before the release coordinates are input to the coordinate input means 3. Since the display screen can be scrolled according to the distance, more natural scroll control can be realized.

  In the screen scroll device 10 of the present invention, the image storage means 2 may store image information of the game space displayed on the image display means 1. In this case, the control means 5 reads out the image information of the game space from the image storage means 2 and displays it on the image display means 2 and displays the image based on the information of each input coordinate stored in the coordinate storage means 4. It is preferable that the viewpoint in the game space displayed on the means 1 is scrolled. Further, in the displacement scroll state, the control means 5 performs control for scrolling the viewpoint with a displacement amount corresponding to the change vector of each input coordinate, and displaying the game space on the image display means 1 based on the viewpoint. On the other hand, in the inertia scroll state, the viewpoint is scrolled with a displacement amount corresponding to the scroll distance that is the sum of the distances between the touch coordinates read from the coordinate storage means 4, the plurality of sampling coordinates, and the lease coordinates. It is preferable to perform control to display the game space on the image display unit 1 based on the viewpoint.

  As described above, the screen scroll apparatus 10 of the present invention scrolls the viewpoint of the game space by scroll control, generates the game space based on the scrolled viewpoint information, and displays the game space on the image display means 1. You may do. The image storage means 2 stores information related to characters and objects existing in the game space. Based on the scrolled viewpoint information, characters and objects are generated in the game space, and the image display means 1 The character or object may be displayed.

The second aspect of the present invention relates to an image scroll method.
That is, the image scrolling method according to the second aspect is executed by the screen scroll device according to the first aspect described above.
The image scroll method of the present invention reads out image information from the image storage means, displays the image on the image display means, and displays the display screen of the image display means based on the information of each input coordinate stored in the coordinate storage means. Scroll.
The image scrolling method of the present invention includes a step of inputting coordinates in the image display means to the coordinate input means,
The coordinate input means that the coordinates are first input to the coordinate input means, the release coordinates immediately before the coordinates are not input to the coordinate input means, and the release coordinates after the touch coordinates are input Storing a plurality of sampling coordinates input to the coordinate storage means;
Performing a control of scrolling the display screen with a displacement amount corresponding to a change vector of each input coordinate between the input of the touch coordinates to the coordinate input means and the input of the release coordinates;
And a step of controlling the display screen to be scrolled by a displacement amount corresponding to a scroll distance that is a sum of distances between the touch coordinates, the sampling coordinates, and the release coordinates after the release coordinates are input.

The third aspect of the present invention relates to the game apparatus 20.
That is, the game apparatus 20 according to the third aspect includes the screen scroll apparatus according to the first aspect described above.
Furthermore, the game apparatus 20 according to the third aspect can display an image on the touch panel 300 based on the card information read by the card reader 262, and scroll-control the display screen of the touch panel with the screen scroll apparatus. It would be nice to be able to.
Specifically, the game device 20 of the present invention includes a card reader 262, a touch panel 300 on which information read by the card reader is displayed, and a screen scroll device 200 that scrolls the display screen of the touch panel.
The card reader 262
A panel 263 on which a card printed with a code having predetermined card information is placed;
It has a detecting means 265 for reading the code of the card placed on the panel 263 and detecting the card information.
The touch panel 300
Image display means 290 capable of displaying an image;
Coordinate input means 261 for inputting coordinates in the image display means 1 is provided.
The screen scroll device 200 is
Image storage means 280 storing image information displayed on the image display means 290 of the touch panel 300;
Touch coordinates in which coordinates are first input to the coordinate input means 261 of the touch panel 300, release coordinates immediately before the coordinates are not input to the coordinate input means 261, and until the release coordinates are input after the touch coordinates are input. Coordinate storage means 270 for storing a plurality of sampling coordinates inputted to the coordinate input means 261 in the meantime,
Based on the card information detected by the detection means 265 of the card reader 262, the image information is read out from the image storage means 280 and displayed on the image display means 290 of the touch panel 300, and each input stored in the coordinate storage means storage 270 is displayed. And control means 210 for scrolling the display screen of the image display means 290 based on the coordinate information.
The control means 210 is
In the displacement scroll state from when the touch coordinates are input to the coordinate input means 261 until the release coordinates are input, control is performed to scroll the display screen 290 with a displacement amount corresponding to the change vector of each input coordinate,
In the inertial scroll state after the release coordinates are input, the displacement amount corresponding to the scroll distance, which is the sum of the distances between the touch coordinates read from the coordinate storage means 270, each sampling coordinate, and the release coordinates, Control to scroll the display screen.

  As described above, by installing a card reader and a touch panel in the game device, a new game can be provided to the user. Further, as described above, in a game in which card information is read from a card placed by a guard reader and an image is displayed on the display screen of the touch panel based on the card information, the user operates the card. Since it is necessary to operate the touch panel, it is particularly easy to misoperate the touch panel. Therefore, it is preferable to prevent screen scrolling due to an erroneous operation of the user by scroll control by the screen scroll device described above. According to the above game device, it is possible to provide a new game that is easy for the user to operate.

  The present invention performs control for scrolling the display screen by the amount of displacement according to the distance that the user traces the screen of the touch panel when scroll control similar to inertia is performed after coordinate input to the coordinate input means is lost. Therefore, it is possible to provide a screen scroll device, a screen scroll method, and a game device in which the display screen is scrolled by a user's intuitive operation while preventing the display screen from being scrolled by a user's erroneous operation.

FIG. 1 is a block diagram showing a functional configuration of a screen scroll apparatus according to the present invention. FIG. 2 is a flowchart showing the steps of the screen scroll method executed by the screen scroll device. FIG. 3 is a diagram for explaining a specific example of scroll control by the screen scroll device. FIG. 4 is a diagram for explaining an operation example of the screen scroll device. FIG. 5 is a diagram for explaining an operation example of the screen scroll device. FIG. 6 is a diagram for explaining an operation example of the screen scroll device. FIG. 7 is a block diagram showing the configuration of the game device according to the present invention. FIG. 8 is a perspective view showing an example of the appearance of the housing of the game device according to the present invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, but includes those appropriately modified by those skilled in the art from the following embodiments.

(1. Screen scroll device)
First, the basic configuration of the screen scroll apparatus according to the present invention will be described.
FIG. 1 is a block diagram showing a basic functional configuration of a screen scroll apparatus 10 according to the present invention. As shown in FIG. 1, the scroll device 10 of the present invention includes an image display means 1, an image storage means 2, a coordinate input means 3, a coordinate storage means 4, a coordinate storage means 5, and a coordinate extraction means 6. Is provided.

  The image display means 1 has a function capable of displaying an image. An example of the image display means 1 is a liquid crystal display, and may be a display using an organic EL. In particular, in the present invention, the screen scroll device 10 preferably includes the large screen image display means 1. For example, the image display means 1 is preferably a display of 10 inches to 75 inches, 16 inches to 40 inches, or 20 inches to 38 inches.

The image storage unit 2 has a function of storing information on an image to be displayed on the image display unit 1.
The image storage means 2 can be realized by a storage device such as a ROM (Read Only Memory) or a RAM (Random Access Memory). Examples of the RAM include VRAM (Video RAM), DRAM (Dynamic RAM), and SRAM (Static RAM). The RAM may be appropriately selected according to the application to which the screen scroll device is applied. The image storage means 2 stores, for example, game space image information. The game space means a game world called a world. The data relating to the game space includes position information of the displayed object, information related to the type of the displayed object, and image data of the displayed object. Examples of displayed objects are backgrounds, buildings, landscapes, plants, and characters appearing in the game. This image information is preferably stored as polygon data. Polygon data includes, for example, vertex coordinate data, color data, texture data, and transparency data. Further, the image storage unit 2 may store image information regarding a map displayed on the image display unit 1. Examples of information about the map are topography, place name, orientation, and scale.

The coordinate input unit 3 has a function of acquiring coordinate information on the screen of the image display unit 1. An example of the coordinate input unit 3 is a touch screen disposed on the front surface of the image display unit 1. The touch screen can detect that the user's finger is in contact and obtain coordinate information by, for example, a known capacitance method, electromagnetic induction method, infrared method, or resistive film method. It is preferable that the coordinate input unit 3 constitutes a touch panel together with the image display unit 1. In this case, the coordinate input means 3 can acquire the coordinate information of the point touched by the user. In addition, the coordinate input means 3 may be a pointing device such as a mouse or a tablet.
The coordinate input means 3 can acquire input coordinates at predetermined time intervals. For example, it is preferable that the coordinate input unit 3 acquires input coordinates according to a frame in which an image is displayed on the image display unit 1. The coordinate input unit 3 may acquire input coordinates for each frame in which an image is displayed on the image display unit 1, or may acquire input coordinates every 2 to 10 frames. For example, when one frame is 60 fps, it is preferable that the coordinate input unit 3 obtains input coordinates every 1/60 seconds.

  The coordinate storage unit 4 has a function of storing the coordinate information acquired by the coordinate input unit 3. The coordinate storage unit 4 is realized by a work area of a RAM, for example. When the coordinates are continuously acquired by the coordinate input unit 3 for a certain time, the coordinate storage unit 4 stores the first input coordinates as touch coordinates. Further, when the coordinates are continuously acquired after the touch coordinates are acquired by the coordinate input means, the subsequently acquired coordinates are stored as sampling coordinates. If coordinates are not input after the coordinates are continuously acquired by the coordinate input means 3, the coordinate storage means 4 stores the coordinates immediately before the coordinates are no longer input as release coordinates. In the coordinate storage means 4, the touch coordinates, the plurality of sampling coordinates, and the release coordinates are stored in order according to the passage of time, and the input order is held.

The control unit 5 has a function of controlling the display screen of the screen display unit 1. The control means 5 is, for example, a CPU (Central Processing Unit) or a GPU (Graphics).
The function is achieved by the Processing Unit. The control means 5 reads image information from the image storage means 2 and causes the image display means 1 to display an image. The control means 5 controls the writing / reading of image information to / from the image storage means 2 based on the information of each input coordinate (touch coordinates, sampling coordinates, and release coordinates) stored in the coordinate storage means 4. , The display screen of the image display means 1 can be scrolled. The image display means 1 is controlled by the control means 5 to display an image corresponding to the image information read from the image storage means 2. That is, the control means 5 calculates a change vector of each input coordinate in the displacement scroll state from when the touch coordinates are input to the coordinate input means 3 until the release coordinates are input, and according to the change vector. The display screen is scrolled by the amount of displacement. On the other hand, in the inertial scroll state after the release coordinates are input, the scroll distance, which is the sum of the distances between the touch coordinates read from the coordinate storage means 4, each sampling coordinate, and the release coordinates, is calculated. Control is performed to scroll the display screen with a displacement amount corresponding to the scroll distance. A detailed procedure of processing in the control means 5 will be described later.

  The coordinate extraction unit 6 has a function of extracting coordinate information from the coordinate storage unit 4. The coordinate extraction unit 6 may be a part of the function of the control unit 5. Specifically, the coordinate extraction unit 6 extracts a plurality of sampling coordinates input to the coordinate input unit 3 from the coordinate storage unit 4 within a predetermined time immediately before the release coordinates are input to the coordinate input unit 3. The predetermined time immediately before the release coordinates are input is, for example, 0.5 second to 2 seconds, or 1 second to 1.5 seconds. The coordinate information extracted by the coordinate extraction means 6 is temporarily stored in the coordinate storage means 4. The coordinate information extracted by the coordinate extraction means 6 is read by the control means 5, and a predetermined calculation is performed when performing control in the inertial scroll state.

Next, the flow of the image scroll method executed by the screen scroll device 10 will be described with reference to FIG.
As shown in FIG. 2, the state in which the coordinate information is not input to the coordinate input means 3 is a state waiting for the input of coordinates (step S1). In the coordinate input standby state, the control means 5 does not perform scroll control of the display screen.

  Subsequently, when the coordinate input unit 3 is touched and coordinate information is input, the coordinate input unit 3 acquires the coordinate information (step S2). The coordinate information first input to the coordinate input unit 3 is stored in the coordinate storage unit 4 as touch coordinates (step S3). Further, when the coordinate input is continued, the continuously acquired coordinate information is continuously acquired at sampling points at a predetermined time interval and stored in the coordinate storage means 4 as a plurality of sampling coordinates. The control means 5 determines whether or not the input of coordinates to the coordinate input means 3 is continued (step S4). When it is determined that the coordinate input continues, the control means 5 performs control in the displacement scroll state (step S5). On the other hand, when it is determined that the coordinate input has not continued, the control means 5 waits for the touch input again (step S1). When the control means 5 determines that the coordinate input has not continued, the control means 5 does not perform the scroll control of the display screen, but performs another operation associated with the touch coordinates based on the input touch coordinates. It is good also as performing control.

  When it is determined that the coordinate input continues, the control means 5 performs control in the displacement scroll state (step S5). In the displacement scroll state, the control means 5 acquires coordinate information that is continuously input (step S6), and stores each coordinate information in the coordinate storage means 4 as sampling coordinates (step S7). Based on the input coordinate change vector acquired by the coordinate input means 4, the control means 5 performs control to scroll the display screen with a displacement amount equal to or proportional to the change vector. Subsequently, the control unit 5 determines whether or not the touch operation on the coordinate input unit 3 has been released based on the presence / absence of coordinate input on the coordinate input unit 3 (step S8). That is, the control means 5 returns to step S5 when the release of the operation is not detected and it is determined that the coordinates are continuously input to the coordinate input means 3, and the acquisition by the coordinate input means 4 continues. The display screen is scrolled by the amount of displacement corresponding to the input coordinate change vector. On the other hand, if the control means 5 detects the release of the operation and determines that no coordinates are input to the coordinate input means 3, the control means 5 ends the control in the displacement scroll state. At this time, the control means 5 stores the input coordinates immediately before the release of the operation is detected in the coordinate storage means 4 as the release coordinates.

  When the control means 5 determines that coordinates are no longer input to the coordinate input means 3 after the displacement scroll state, the control means 5 within the predetermined time before the release of the operation is detected via the coordinate extraction means 6, The coordinate information input to the coordinate input means 3 is extracted (step S9). That is, the coordinate storage means 4 stores the touch coordinates, the plurality of sampling coordinates, and the release coordinates acquired from the coordinate input means 3 in the displacement scroll state while maintaining the temporal order. For this reason, the coordinate extracting unit 6 refers to the coordinate storage unit 4 and each coordinate (touch coordinate) input to the coordinate input unit 3 within a predetermined time (for example, within 1 second) before the release coordinate is input. , Sampling coordinates, and release coordinates). For example, if the release coordinates have been input from the touch coordinates to the coordinate input means 3 within a predetermined time before the release coordinates are input, the coordinate extraction means 6 determines all coordinates from the touch coordinates to the release coordinates. Should be extracted. Also, for example, when the touch coordinates and some sampling coordinates are not input within a predetermined time before the release coordinates are input, the coordinate extracting means 6 may select another coordinate input within the predetermined time. Only the sampling coordinates and release coordinates need be extracted. Each piece of coordinate information extracted by the coordinate extraction unit 6 is temporarily stored in the coordinate storage unit 4.

  Thereafter, the control means 5 calculates the scroll distance using the coordinate information extracted by the coordinate extraction means 6 (step S10). The scroll distance is the sum of the distances between touch coordinates, sampling coordinates, or release coordinates input to the coordinate input means 3 within a predetermined time before the release coordinates are input. In particular, the scroll distance means the sum of the distances between coordinate points where the input temporal order is in the context.

Here, an example of a method of calculating the scroll distance will be described with reference to FIG. FIG. 3 shows an example in which touch coordinates T, sampling coordinates S1 to S4, and release coordinates R are input within a predetermined time before the release coordinates are input. In FIG. 3, the sampling coordinates S1 to S4 and the release coordinates R are acquired at the sampling points set every predetermined time (Δt) after the touch coordinates T are input. In FIG. 3, the touch coordinates T first input to the coordinate input means 3 are indicated by (x _T , y _T ), and the release coordinates R input immediately before the coordinate input means 3 no longer has the coordinate input are (x _R , y _R ), and the sampling coordinates S1 to S4 input at each sampling point from the input of the touch coordinates T to the input of the release coordinates R are respectively (x _S1 , y _S1 ) to (x _S4 , y _S4 ).
As shown in FIG. 3, the linear distance from the touch coordinate T to the first sampling coordinate S1 is d ₁ , the linear distance from the first sampling coordinate S1 to the second sampling coordinate S2 is d ₂ , The linear distance from the sampling coordinate S2 to the third sampling coordinate S3 is d ₃ , the linear distance from the third sampling coordinate S3 to the fourth sampling coordinate S4 is d ₄ , and from the fourth sampling coordinate S4 to the release coordinate R Is expressed by d ₅ , respectively.
Here, the distances d ₁ to d ₅ can be obtained by the following equations, respectively.

As described above, the control unit 5 reads each piece of coordinate information from the coordinate storage unit 4, and can determine the distances d _{1 to} d ₅ between the coordinate points in which the input temporal order is in the context. Then, the control unit 4, by taking the sum of the distances d ₁ to d _5, it is possible to determine the scrolling distance D. The scroll distance D is temporarily stored in the work area of the image storage means 2, for example.

When the scroll distance is obtained, the control means 5 preferably determines whether or not the scroll distance is a certain distance (step S11). The fixed distance can be set as appropriate in consideration of, for example, the size of the display. The certain distance or more may be, for example, 10 mm or more, 20 mm or more, 50 mm or more, or 100 mm or more. When the control means 5 determines that the scroll distance is equal to or greater than a certain distance, the control means 5 shifts to control in the next inertial scroll state. On the other hand, when the control means 5 determines that the scroll distance is less than a certain distance, the control means 5 stops scrolling the display screen of the image display means 1 and returns to the coordinate input standby state (step S1).
That is, even if an operation with a scroll distance less than a certain value is input to the coordinate input means 3, the control means 5 considers that the operation is not intended to scroll the display screen, and stops scrolling the display screen. As a result, it is possible to effectively prevent the display screen from scrolling due to an erroneous operation by the user.

  The control means 5 performs control for scrolling the display screen of the image display means 1 with a displacement amount proportional to the scroll distance in the inertial scroll state (step S12). At this time, the control means 5 reads the release coordinates and the sampling coordinates input immediately before the release coordinates from the coordinate storage means 4, and in the direction of the extended line of the straight line connecting the sampling coordinates and the release coordinates, It is preferable to scroll the display screen. Further, in the inertial scroll state, it is preferable that the control means 5 gradually decrease the scroll speed of the display screen as time passes until the displacement amount according to the scroll distance is reached. In other words, in the inertial scroll state, the amount of attenuation is set so that the frictional force is working, so that the scroll amount is gradually attenuated, and when the scroll amount becomes zero, the display screen is scrolled. It is preferable to stop.

  Further, the control means 5 determines the operation state of the coordinate input means 3 based on the presence / absence of input coordinates for the coordinate input means 3 in the inertial scroll state (step S13). If the control means 5 determines that data is input to the coordinate input means 3 during the control in the inertial scroll state, the control means 5 temporarily stops the scrolling, returns to the processing in step S2, and acquires the input coordinates (step S2) and coordinate information are stored (step S3). On the other hand, when the scroll amount of the display screen reaches a displacement amount corresponding to the scroll distance, the control means 5 stops scrolling of the display screen (step S14). In the state where the scrolling of the display screen is not stopped, the display screen is continuously scrolled (step S12), and the presence / absence of input coordinates for the coordinate input means 3 is determined repeatedly (step S13). When it is determined that the display screen scrolling has stopped, the control means 5 returns to step S1 again and waits for coordinate input (step S1).

Here, the control of the inertial scroll state will be specifically described with reference to FIG.
In FIG. 3, the release coordinate R input immediately before the coordinate input unit 3 has no coordinate input is indicated by (x _R , y _R ), and is obtained at the sampling point immediately before the release coordinate R. The sampling coordinates of 4 are indicated by S4 (x _S4 , y _S4 ).
Further, as described above, since the control means 4 scrolls the display screen by a displacement amount (distance) proportional to the scroll distance D, if the proportionality constant is k, the distance by which the display screen is scrolled is indicated by Dk. .
Further, the control means 4 scrolls the display screen in the direction of the extended line connecting the release coordinate R and the fourth sampling coordinate S4. Therefore, when the angle with respect to the x axis of the straight line connecting the release coordinate R and the fourth sampling coordinate S4 is θ, the angle with respect to the x axis of the extension line for scrolling the display screen is also θ.
For this reason, the scroll amount scrx in the x direction starting from the release coordinate R and the scroll amount scry in the y direction can be expressed by the following equations.
scrx = Dk × cos θ
scry = Dk × sin θ

In FIG. 3, the end point coordinate E obtained by advancing the scroll distance Dk from the release coordinate R is indicated by (x _E , y _E ).
And x-coordinate x _E in the scroll end point coordinates E, y-coordinate y _E can be respectively represented by the following equations.
x _E = x _R + scrx
y _E = y _R + scry

The control unit 5 can perform the inertial scrolling of the display screen by calculating the scroll amount scrx in the x direction and the scroll amount scry in the y direction by performing such arithmetic processing. Inertial scrolling of the display screen stops at end point coordinates E (x _E , y _E ) that are advanced from the release coordinates R by the scroll distance Dk.
Alternatively, the scrolling speed of the display screen may be gradually reduced by setting the scroll attenuation amount, and may be stopped at the end point coordinates E (x _E , y _E ). The attenuation amount is an arbitrary element, and the numerical value thereof can be varied as appropriate. The display screen may be scrolled at a constant scroll speed without setting the attenuation amount.

  The screen scroll device 10 having the above configuration can be applied to, for example, a game device, a car navigation device, and other computers. For example, by mounting the image scroll 10 described above, while the user is tracing the touch panel with a finger, the user can enter a displacement scroll state in which the display screen is scrolled in accordance with the locus of the user's finger. After the finger is released, the inertia scroll state can be set in which the display screen is scrolled according to the distance the user traces the touch panel.

Then, with reference to FIGS. 4-6, the operation example of the screen scroll apparatus 10 which concerns on this invention is demonstrated.
FIG. 4 is a conceptual diagram illustrating an example of a basic operation of the screen scroll device 10.
For example, when a point on the screen of the touch panel 3 is touched by the user, the control unit 5 recognizes the point as the touch coordinate T. Thereafter, when the touch state by the user continues, the control means 5 acquires the input coordinates at each sampling point as the sampling coordinates. The control means 5 scrolls the display screen with the amount of displacement corresponding to the change vector of each sampling coordinate in a state where the touch by the user continues. Thereafter, when the user's finger leaves the screen, the point is recognized as the release coordinate R. The control means 5 calculates a scroll distance D in which the user traces the touch panel with a finger based on information on the touch coordinates T, each sampling coordinate, and the release coordinates R. Then, the display screen is scrolled from the released point by an inertial scroll distance I (I = Dk) proportional to the scroll distance D.

FIG. 5 is a conceptual diagram showing another operation example of the screen scroll device.
FIG. 5A shows an example in which the user touches the touch panel 3 with a curved locus. Also in such an example, while the touch by the user continues, the control means 5 acquires the input coordinates at each sampling point as the sampling coordinates, and displays the display screen with the displacement amount corresponding to the change vector of each sampling coordinate. Scroll. That is, even if the user traces the touch panel 3, the display screen is scrolled according to the curved locus while the user's touch continues. On the other hand, when the user's touch is released, the display screen is scrolled at an inertial scroll distance I proportional to the scroll distance D traced by the user. Thus, when the touch panel 3 is traced with a curved locus, even if the linear distance between the touch coordinates T and the release coordinates R is short, the scroll distance D that the user traces the touch panel becomes long. The inertial scroll distance I is also long.
FIG. 5B shows an example in which the user touches the touch panel with a locus that draws a circle. As shown in FIG. 5B, when the user touches the touch panel with a locus that draws a circle, the linear distance between the touch coordinates T and the release coordinates R is short, but the scroll distance D that the user traces the touch panel is , It becomes longer according to the number of times the circle is drawn. Accordingly, the inertial scroll distance I naturally increases in accordance with the scroll distance D that the user traces on the touch panel.
That is, when the user wants to scroll the display screen at a long distance, not only simply increase the linear distance from the touch coordinates to the release coordinates, but also dare to curve the touch panel or make a circle. The display screen can also be scrolled at a long distance by tracing with a trace like drawing. As described above, when the user traces the panel so as to curve or draw a circle, the operation of scrolling the display screen over a long distance is a novel operation method proposed by the present invention. Such an operation method is similar to a physical phenomenon in which an object is thrown far away using centrifugal force, and can provide an intuitive and brand new scroll operation to the user.

FIG. 6 is a conceptual diagram showing another operation example of the screen scroll device.
The operation example shown in FIG. 6 is an operation example when the user continues the touch state of the touch panel for a certain time or more. As described above, when it is determined that the coordinate is not input to the coordinate input unit 3 after the displacement scroll state, the control unit 5 performs a predetermined time before the release of the operation is detected via the coordinate extraction unit 6. The coordinate information input to the touch panel is extracted within t, and the scroll distance D is calculated. In FIG. 6, the scroll distance within a predetermined time t before release is detected is indicated by D, and the scroll distance before the predetermined time t is indicated by D ′. In the displacement scroll state, the control means 5 scrolls the display screen along a locus traced on the touch panel 3 by the user as usual. On the other hand, when the touch state of the user is released, the control unit 5 calculates the scroll distance D based on the sampling coordinates to which the coordinates are input within a predetermined time t. Then, the control means 5 scrolls the display screen according to the inertial scroll distance I proportional to only the scroll distance D. That is, the scroll distance D ′ based on the sampling coordinates input before the predetermined time t is not used in the calculation for obtaining the inertia scroll distance I.
In this way, by limiting the scroll distance reflected in the inertial scroll distance I to the distance immediately before the release is detected, a scroll operation that more appropriately reflects the user's intention can be realized.

The screen scroll device described above can be applied to, for example, a game device or a car navigation device. For example, when the screen scroll device is applied to a game device, the control means may scroll the viewpoint in the game space based on the coordinate information input to the coordinate input means. When the screen scroll device is applied to a car navigation device, the control means may scroll the map image.
Hereinafter, as one embodiment of the present invention, a game device equipped with an image scroll device will be described.

(2. Game device)
[Configuration example of game device]
FIG. 7 is a block diagram illustrating a configuration example of a game device including a screen scroll device. The embodiment represented by this block diagram can be suitably used particularly as an arcade type game machine for business use. FIG. 8 is a perspective view showing the appearance of the housing of the game device according to the embodiment of the present invention.

  As shown in FIG. 7, the processing unit 200 performs various processes such as control of the entire system, instruction instruction to each block in the system, game processing, image processing, and sound processing. The function of the processing unit 200 can be realized by hardware such as various processors (CPU, DSP, etc.) or ASIC (gate array, etc.), or a given program (game program).

  The operation unit 260 is for a player to input operation data. The function of the operation unit 260 can be realized by, for example, a controller including a card reader, a touch panel, a lever, a button, an outer frame, and hardware. Processing information from the operation unit 260 is transmitted to a main processor or the like via a serial interface (I / F) or a bus. Here, as shown in FIG. 8, the game apparatus 20 according to the present invention preferably includes a touch screen 261 and a card reader 262, and proceeds with the game in accordance with input information from these.

  The touch screen 261 can detect contact of a user's finger by a known capacitance method, electromagnetic induction method, infrared method, resistance film method, and the like, and obtain coordinate information thereof. The touch screen 261 is formed of a transparent material, and constitutes the touch panel 300 together with the display unit 290 by being installed on the front surface of the display unit 290. The positional relationship between the touch screen 261 and the display unit 290 is linked to each other, and the touch screen 261 acquires coordinate information on the display unit 290. As a result, the touch screen 261 can detect that the user's finger has touched and can obtain coordinate information on the screen of the display unit 290 on which the user's finger has touched. The coordinate information acquired by the touch screen 261 is stored in the temporary storage unit 279.

The card reader 262 is a device for reading the identification code recorded on the card C when the card C is placed and acquiring card information unique to the card C.
For example, on the card C, an illustration of a character used in the game is printed on the front surface, and an identification code for identifying the character printed on the front surface is recorded on the back surface. For example, an identification code is printed on the back surface of the card C with ink that is not visible with visible light, and a pattern printed in white and black appears when viewed with specific invisible light. The identification code is printed with a special ink that absorbs invisible light such as infrared rays. When the back surface of the card C is irradiated with infrared rays, the invisible light irradiated on the portion other than the black portion of the identification code is reflected. It has become.
The card reader 262 is a device that can capture an image of the identification code recorded on the card C. For example, a panel 263 is provided on the upper surface of the card reader 262, and the card C is placed on the panel 263. Then, for example, a light source 264 that irradiates infrared light (invisible light) to the back surface of the card placed on the panel 263 and the back surface of the card C placed on the panel 263 are reflected inside the housing of the game apparatus 10. An image sensor 265 is provided that captures the pattern of card data recorded on the card C by acquiring the infrared rays. The light source 264 is, for example, a light emitting diode (LED) that emits invisible light that is invisible to the naked eye such as infrared rays and ultraviolet rays. The image sensor 265 images the identification code by infrared rays that are reflected on the back surface of the card C and incident on the card reader 261. The card reader 262 analyzes the identification code to obtain card information unique to the card C. The card information is transmitted to the processing unit 200 and stored in the temporary storage unit 270. .
For example, the identification code of the card C records at least information such as the identification number of the character drawn on the card and the card orientation. For this reason, the processing unit 200 refers to the character table written in the temporary storage unit 270 based on the card information obtained from the card reader 262, so that the type, name, and attribute of the character recorded in the card C are as follows. Furthermore, the character characteristics according to the orientation of the card C can be grasped.

  The temporary storage unit 270 is a work area such as the processing unit 200 or the communication unit 296. In addition, programs and various tables may be stored. The temporary storage unit 270 may include, for example, a main memory 272, a frame buffer 274, and a texture storage unit 276, and may store various tables. The function of the temporary storage unit 270 can be realized by hardware such as RAM. Examples of the RAM include VRAM, DRAM, and SRAM, and may be appropriately selected depending on the application. A VRAM or the like constituting the frame buffer 274 is used as a work area for various processors. Operation information input to the operation unit 260 by the user is stored in the temporary storage unit 270. In particular, the touch screen 2613 acquires input coordinates for each frame in which an image is displayed on the display unit 290, and stores each coordinate information in the temporary storage unit 270.

  The game information storage unit 280 stores information such as game programs and image data to be displayed on the display unit 290. The game information storage unit 280 is, for example, a ROM, and can be realized by a non-volatile memory such as an optical disk (CD, DVD), a magneto-optical disk (MO), a magnetic disk, a hard disk, or a magnetic tape. The processing unit 200 performs various processes based on information stored in the game information storage unit 280. The game information storage unit 280 stores information (program or program and data) for executing the means of the present invention (this embodiment) (particularly, the blocks included in the processing unit 200). Part or all of the information stored in the game information storage unit 280 is written to the temporary storage unit 270 when the system is powered on, for example.

  As information stored in the game information storage unit 280, program code for performing predetermined processing, image data, sound data, shape data of display objects, table data, list data, information for instructing processing of the present invention , Information including at least two pieces of information for performing processing in accordance with the instruction. For example, the table data includes character table data that stores character characteristics corresponding to the character type, name, attribute, and orientation of the card C in association with the game character identification number. The game information storage unit 280 is preferably a device for storing data related to the game space. The game space means the world of the game in the game device of the present invention, also called the world. The data relating to the game space includes position information of the displayed object, information related to the type of the displayed object, and image data of the displayed object. Examples of displayed objects are backgrounds, buildings, landscapes, plants, and characters appearing in the game. This image data is preferably stored as polygon data. Polygon data includes, for example, vertex coordinate data, color data, texture data, and transparency data. The game information storage unit 280 classifies and stores the displayed object according to, for example, the orientation, position, area, etc. of the player character's viewpoint.

  The display unit 290 outputs an image generated according to the present embodiment, and its function is such as CRT (CRT), LCD (Liquid Crystal), OEL (Organic Electroluminescent Device), PDP (Plasma Display Panel), etc. It can be realized by hardware. The touch screen 261 described above is installed on the rear surface of the display unit 290, and the touch panel 300 is configured by the display unit 290 and the touch screen 261.

  The sound output unit 292 outputs sound. The function of the sound output unit 292 can be realized by hardware such as a speaker. The sound output is processed by a sound processor connected to the main processor or the like via a bus, for example, and output from a sound output unit such as a speaker.

  The portable information storage device 294 stores player personal data, save data, and the like. Examples of the portable information storage device 294 include a memory card and a portable game device. The functions of the portable information storage device 294 can be achieved by known storage means such as a memory card, flash memory, hard disk, USB memory and the like. However, the portable information storage device 294 is not necessarily required and may be mounted when it is necessary to identify the individual player.

  The communication unit 296 is an arbitrary unit that performs various controls for communicating with the outside (for example, a host server or another game device). By connecting the game apparatus 10 to a host server or another game apparatus via the communication unit 296, it is possible to perform game battle play and cooperative play. The function of the communication unit 296 can be realized by various processors, hardware such as a communication ASIC, a program, or the like. Further, a program or data for executing the game device 20 may be distributed from the information storage medium of the host device (server) to the game information storage unit 280 via the network and the communication unit 296.

  An example of the processing unit 200 includes a game processing unit 220, an image processing unit 230, and a sound processing unit 250. Specific examples include a main processor, a coprocessor, a geometry processor, a drawing processor, a data processor, four arithmetic operation circuits, or a general-purpose operation circuit. These are appropriately connected by a bus or the like so that signals can be exchanged. In addition, a data expansion processor for expanding compressed information may be provided.

  Here, the game processing unit 220 displays the display unit 290 based on the processing of scrolling the viewpoint position (virtual camera position) and the line-of-sight angle (virtual camera rotation angle) on the display unit 290, and the card information acquired by the card reader 262. 290 Character display processing, coin (price) reception processing, various mode setting processing, game progress processing, selection screen setting processing, character position and rotation angle (rotation angle around X, Y or Z axis) , Processing to move objects (motion processing), processing to place objects such as map objects in the object space, hit check processing, processing to calculate game results (achievements, results), and games that have multiple players in common Various games such as processing for playing in space or game over processing Processing, carried out or the operation data from the operation section 260, the personal data from the portable information storage device 294, and stored data, based on a game program.

  The image processing unit 230 performs various types of image processing in accordance with instructions from the game processing unit 220 and the like. The game processing unit 220 reads game space image information from the game information storage unit 280 based on the viewpoint position and line-of-sight angle information, and writes the read image information to the temporary storage unit 270. The game processing unit 220 supplies scroll data for moving the viewpoint to the image processing unit 230. The image processing unit 230 reads image information for each frame from the temporary storage unit 270 based on the given scroll data, and causes the display unit 290 to display an image according to the read image information. Thereby, the game space is displayed on the display unit 290 based on the viewpoint. Further, the image processing unit 230 moves the viewpoint in the game space according to the input coordinates on the touch screen 261. Then, the image processing unit 230 reads a frame from the temporary storage unit 270 based on the moving viewpoint information, and causes the display unit 290 to display the read image. In this way, the display screen changes by scrolling the viewpoint of the game space. More specifically, the image processing unit 230 performs the above-described control in the displacement scroll state and the control in the inertial scroll state when scrolling the viewpoint of the game space. That is, in the displacement scroll state, the image processing unit 230 controls the display unit 290 to display the game space based on the viewpoint by scrolling the viewpoint with a displacement amount corresponding to the change vector of each input coordinate. In the inertia scroll state, the image processing unit 230 also includes a displacement amount corresponding to the scroll distance that is the sum of the distances between the touch coordinates read from the temporary storage unit 270, each of the plurality of sampling coordinates, and the release coordinates. Then, control is performed to scroll the viewpoint and display the game space on the image display means 1 based on the viewpoint.

The image processing unit 230 reads card information acquired by the card reader 261 from the temporary storage unit 270, and refers to the character table based on the card information. Then, based on the link information stored in the character table, the character data associated with the card information is read from the temporary storage unit 270 or the game information storage unit 280. Then, the image processing unit 230 generates a character in the game space according to the read character data, and causes the display unit 290 to display the character. The game processing unit 220 controls the action of the character appearing in the game space based on the coordinate information input to the touch screen 261 and operation information from other operation units (lever, button, or controller).
For example, the game control unit 220 refers to the coordinate information of the character displayed on the display unit 290 based on the card information from the card reader and the coordinate information input to the touch screen 261, and the character is determined by the user. It is determined whether or not it has been touched. That is, if the position information input to the touch screen 261 matches the position information of the character, the game control unit 220 determines that the character has been touch-selected. When coordinate information that matches the position of the character is input to the touch screen 261 and then different coordinate information is input to the touch screen 261, the game control unit 220 receives the touch-selected character again. Control to move based on the coordinate information. Thus, it is preferable that the game apparatus 20 advances the game by linking the card information acquired by the card reader 261 and the coordinate information input to the touch screen 261.

  The sound processing unit 250 emits various sounds according to instructions from the game processing unit 220 and the like.

All of the functions of the game processing unit 220, the image processing unit 230, and the sound processing unit 250 may be realized by hardware, or all of them may be realized by a program. Alternatively, it may be realized by both hardware and a program.
As shown in FIG. 7, for example, the image processing unit 230 includes a geometry calculation unit 232 (three-dimensional coordinate calculation unit) and a drawing unit 240 (rendering unit).

  The geometry calculation unit 232 performs various geometry calculations (three-dimensional coordinate calculation) such as coordinate conversion, clipping processing, perspective conversion, or light source calculation. Then, the object data (object vertex coordinates, vertex texture coordinates, luminance data, etc.) after the geometry processing (after perspective transformation) is stored and saved in the main memory 272 of the storage unit 270, for example.

  The drawing unit 240 draws an object in the frame buffer 274 based on the object data after the geometry calculation (after perspective transformation) and the texture stored in the texture storage unit 276.

  Examples of the drawing unit 240 include a texture mapping unit 242 and a shading processing unit 244. Specifically, it can be implemented by a drawing processor. The drawing processor is connected to a texture storage unit, various tables, a frame buffer, a VRAM, and the like via a bus and further connected to a display.

  The texture mapping unit 242 reads the environment texture from the texture storage unit 276 and maps the read environment texture to the object.

  The shading processing unit 244 performs shading processing on the object. For example, the geometry processing unit 232 performs light source calculation, and obtains the luminance (RGB) of each vertex of the object based on the light source information for shading processing, the illumination model, the normal vector of each vertex of the object, and the like. Based on the luminance of each vertex, the shading processing unit 244 obtains the luminance of each dot on the primitive surface (polygon, curved surface) by, for example, phone shading or goo shading.

  An example of the geometry calculation unit 232 includes a normal vector processing unit 234. The normal vector processing unit 234 may perform a process of rotating the normal vector of each vertex of the object (in a broad sense, the normal vector of the surface of the object) using a rotation matrix from the local coordinate system to the world coordinate system. .

[Basic operation of game device]
When the system is turned on, part or all of the information stored in the game information storage unit 280 is transferred to the temporary storage unit 270, for example. A game processing program is stored in, for example, the main memory 272, and various data are stored in the texture storage unit 276, a table (not shown), or the like.

  Various operation information from the operation unit 260 is transmitted to the processing unit 200 via, for example, a serial interface or a bus (not shown), and various image processing and sound processing are performed. The sound information processed by the sound processing unit 250 is transmitted to the sound output unit 292 via the bus and released as sound. In addition, save information stored in the portable information storage device 194 such as a memory card is also transmitted to the processing unit 200 via a serial interface or bus (not shown), and predetermined data is written to the temporary storage unit 270.

The image processing unit 230 performs various image processing in accordance with instructions from the game processing unit 220. For example, the image processing unit 230 moves the viewpoint in the game space according to the input coordinates on the touch screen 261. Then, the image processing unit 230 reads a frame from the temporary storage unit 270 based on the moving viewpoint information, and causes the display unit 290 to display the read image. Further, the image processing 240 generates a character in the game space based on the card information acquired by the card reader 263 and causes the display unit 290 to display the character.
Specifically, based on input coordinates from the touch screen 261 and card information from the card reader 262, the geometry calculation unit 232 performs various geometry calculations (3 such as coordinate conversion, clipping processing, perspective conversion, or light source calculation). (Dimensional coordinate calculation) to generate a game space image and a character image at a certain viewpoint. Then, the object data (object vertex coordinates, vertex texture coordinates, luminance data, etc.) after the geometry processing (after perspective transformation) is stored and saved in the main memory 272 of the storage unit 270, for example. Next, the drawing unit 240 draws an object in the game space in the frame buffer 274 based on the object data after the geometry calculation (after perspective transformation) and the texture stored in the texture storage unit 276.

The information stored in the frame buffer 274 is transmitted to the display unit 290 via the bus and rendered. When coordinates are input to the touch panel 300 and the image processing unit 230 scrolls the viewpoint in the game space according to the input coordinates, a game image corresponding to the scrolled viewpoint is read from the frame buffer 274 and displayed on the display unit 290. Is transmitted to.
Thus, the screen scroll device of the present invention functions as the game device 20 having computer graphics.

  The present invention relates to a screen scroll device for scrolling a display screen. The screen scroll device of the present invention can be applied to a game device or a car navigation device. Therefore, the present invention can be suitably used in the game industry and the navigation system industry.

DESCRIPTION OF SYMBOLS 1 Image display means 2 Image storage means 3 Coordinate input means 4 Coordinate storage means 5 Control means 6 Coordinate extraction means 10 Image scroll device 20 Game device 200 Processing unit 210 Image processing unit 220 Game processing unit 232 Geometry processing unit 234 Normal vector processing Unit 240 drawing unit 242 texture mapping unit 244 shading unit 250 sound processing unit 260 operation unit 261 touch screen 262 card reader 263 panel 264 light source 265 image sensor 270 temporary storage unit 272 main memory 274 frame buffer 276 texture storage unit 280 game information storage unit 290 Display unit 292 Sound output unit 294 Portable information storage device 296 Communication unit 300 Touch panel

Claims (1)

A game system comprising a game device comprising an image display means (1) and the coordinate input means (3), and a server that will be connected through the game device and the network,
The touch coordinates in which coordinates are first input to the coordinate input means (3), the release coordinates immediately before the coordinates are not input to the coordinate input means (3), and the release coordinates after the touch coordinates are input. and a plurality of sampling coordinates inputted to the coordinates inputting means (3) until the input, a coordinate storing means for storing holding chronological order (4),
Control means (5) for scrolling the display screen of the image display means (1) based on the information of each input coordinate stored in the coordinate storage means (4),
The control means (5)
In the inertial scrolling state after the release coordinate is input, the touch coordinates, the plurality of sampling coordinates, and for the release coordinates is the sum of the inter-coordinate distances is calculated using at least the time sequence scrolls A game system that performs control to scroll the display screen with a displacement amount corresponding to a distance.

Images