JP6737836B2 - Program, information processing apparatus, and control method - Google Patents

Description

The present invention relates to a program, an information processing device, and a control method.

Conventionally, in a game executed by an information processing device such as a smartphone or a portable game machine, a virtual camera in a three-dimensional virtual space is used as a viewpoint, and an image of an object in the virtual space drawn on a two-dimensional plane is displayed as a game screen. The technology to do is known. For example, Patent Document 1 discloses a configuration in which a game screen in which a field in which a character is arranged is viewed obliquely from above is displayed with a virtual camera as a viewpoint.

JP, 2013-168022, A

However, the screen size of the display device included in such an information processing apparatus is relatively small, and the visibility of the screen may not always be sufficient. Therefore, there is room for improvement in the visibility of the game screen in the information processing device.

An object of the present invention made in view of such circumstances is to provide a program, an information processing apparatus, and a control method for improving the visibility of a game screen displayed on the information processing apparatus.

In order to solve the above problems, the program according to the present invention is
In the information processing device that executes the game,
Arranging a virtual camera, a field object, and an object located on the field object in a three-dimensional virtual space,
Displaying a game screen including a two-dimensional image obtained by projecting the field object and the object by perspective projection with the virtual camera as a viewpoint;
Moving at least one of the field object and the object relative to the virtual camera;
If the distance of the object from the virtual camera in the optical axis direction of the virtual camera is within a first range, a first correction step of performing correction such that the object becomes larger as the distance increases,
When the distance is within a second range different from the first range in the optical axis direction of the virtual camera, a second correction step of performing correction such that the object becomes smaller as the distance becomes longer is executed.

Further, the information processing device according to the present invention,
A display unit and a control unit,
The control unit is
A virtual camera, a field object, and an object located on the field object are arranged in a three-dimensional virtual space,
A game screen including a two-dimensional image obtained by projecting the field object and the object by perspective projection from the virtual camera as a viewpoint,
At least one of the field object and the object is moved relative to the virtual camera,
When the distance of the object from the virtual camera in the optical axis direction of the virtual camera is within the first range, correction is performed to make the object larger as the distance becomes longer,
When the distance is within the second range different from the first range in the optical axis direction of the virtual camera, the correction is performed such that the object becomes smaller as the distance becomes longer.

Further, the control method according to the present invention,
A method for controlling an information processing device for executing a game, comprising:
Arranging a virtual camera, a field object, and an object located on the field object in a three-dimensional virtual space,
Displaying a game screen including a two-dimensional image obtained by projecting the field object and the object by perspective projection with the virtual camera as a viewpoint;
Moving at least one of the field object and the object relative to the virtual camera;
If the distance of the object from the virtual camera in the optical axis direction of the virtual camera is within a first range, a first correction step of performing correction such that the object becomes larger as the distance increases,
When the distance is within a second range that is different from the first range in the optical axis direction of the virtual camera, a second correction step is performed to make the object smaller as the distance becomes longer.

According to the program, the information processing device, and the control method of the present invention, the visibility of the game screen displayed on the information processing device is improved.

It is a block diagram of the information processing apparatus which concerns on one Embodiment of this invention. It is a figure which shows each object arrange|positioned in three-dimensional virtual space. It is the figure which looked at the field object arranged in the three-dimensional virtual space, the 1st object, and the virtual camera from the direction of the Xw axis. It is a figure which shows the 1st example of a field screen. It is a figure which shows three objects in which the size of the projection image by perspective projection is equal. It is a figure which shows the 1st example of the relationship between the distance from a virtual camera in an optical axis direction, and the magnification of the size of a 1st object. It is a figure which shows the 2nd example of a field screen. It is a figure which shows the 2nd example of the relationship with the distance from the virtual camera in an optical axis direction, and the magnification of the size of a 1st object. It is a flowchart which shows operation|movement of an information processing apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Outline of information processing device)
An outline of the information processing apparatus 10 according to the first embodiment of the present invention will be described with reference to FIG. The information processing device 10 is, for example, a smartphone, a PC, a portable game machine, or the like, and can execute the game application according to the present embodiment. The game application may be received from, for example, a predetermined application distribution server via the Internet, or may be previously stored in a storage device included in the information processing device 10 or a storage medium such as a memory card readable by the information processing device 10 in advance. It may be stored.

(Outline of the game)
The outline of the game according to this embodiment will be described. The game according to the present embodiment includes one or more game parts. At least one game part may be executed using the game content.

The game medium is electronic data used in the game, and includes any medium such as a card, an item, a virtual currency, a ticket, a character, an avatar, and the like. Further, the game content is electronic data that can be acquired, owned, used, managed, exchanged, combined, enhanced, sold, disposed of, or donated in the game by the user. It is not limited to what is specified.

Hereinafter, unless otherwise specified, the “game content owned by the user” refers to the game content associated with the user ID that can uniquely identify the user as the owned game content.
Further, “giving a game content to the user” means associating the game content with the user ID as the owned game content. Further, “discarding the game content owned by the user” indicates that the association between the user ID and the owned game content is canceled. Further, “consuming the game content owned by the user” indicates that some effect or influence can be generated in the game in accordance with the cancellation of the association between the user ID and the owned game content. In addition, “selling a game medium owned by the user” means that the association between the user ID and the owned game medium is canceled, and the user ID owns another game medium (for example, virtual currency or item). It shows that it is associated as a game medium. In addition, “transferring the game content owned by the user A to the user B” means that the correspondence between the user ID of the user A and the owned game content is canceled, and the user ID of the user B owns the game content. It shows that it is associated as a game medium. Further, “creating a game content” means defining or deciding at least a part of the information about the game content.

The game part is content that can be played by the user in the game, and includes, for example, quests, missions, mini games, training, strengthening, and composition of game media, game media acquisition events, virtual space search events, and opponents ( For example, it includes a battle event with other users, enemy characters, and enemy buildings). One or more predetermined tasks (game tasks) may be set for each game part. For example, when it is determined that one or more game tasks set in the game part played by the user have been successfully achieved, for example, a game content or the like may be given to the user as a reward. The game task includes, for example, a task of winning a battle with an enemy character, a task of reaching a goal point in the virtual space, and a user character in a predetermined state (e.g., incapable state) until a predetermined time elapses. It is possible to adopt any task according to the content of the game part, such as a task that does not become). In addition, achievement of a specific task (clear task) among one or more game tasks set for the game part is also referred to as clearing the game part. When the user who plays the game part succeeds in achieving the clear task, it may be determined that the game part has been cleared, and the game part may end.

For example, a user who plays a game operates a user character arranged on a field in a three-dimensional virtual space. A user character moves on the field according to a user operation. Various areas such as towns and dungeons may be provided in the field. For example, various events depending on the area may occur, such as a conversation event with a resident character in the town and a battle event with an enemy character encountered in the dungeon. The story of the game may proceed by executing the event. When the user wins the battle with the enemy character, for example, a game medium such as an item, virtual currency, or a character may be given to the user.

In the game according to the present embodiment, a game screen including a two-dimensional image obtained by projecting an object in the virtual space on the virtual screen by perspective projection is displayed with the virtual camera in the three-dimensional virtual space as a viewpoint. For example, the projected image of the object projected on the virtual screen is displayed on the game screen. Hereinafter, the object on the screen is also referred to as a projected image of the object. On the game screen by perspective projection, a sense of perspective corresponding to the distance from the virtual camera is expressed. Specifically, the size of the projected image of the object changes according to the distance between the virtual camera and the object. For example, as the object moves away from the virtual camera in the virtual space, the projected image of the object becomes smaller. Further, in the game according to the present embodiment, when the predetermined condition is satisfied, the size of the object itself is reduced so as to reduce the change in the size of the projected image of the object according to the distance from the virtual camera. The correction process is executed. Details of the game process according to the present embodiment will be described later.

(Configuration of information processing device)
The configuration of the information processing device 10 will be specifically described. The information processing device 10 includes a communication unit 11, a storage unit 12, a display unit 13, an input unit 14, and a control unit 15.

The communication unit 11 includes an interface capable of communicating with an external device wirelessly or by wire. The communication unit 11 may include, for example, a wireless communication module, a wireless LAN communication module, a wired LAN communication module, or the like that supports a mobile communication standard such as LTE (Long Term Evolution) (registered trademark).

The storage unit 12 includes, for example, a primary storage device and a secondary storage device. The storage unit 12 may include, for example, a semiconductor memory, a magnetic memory, an optical memory, or the like. The storage unit 12 stores information and programs used for game processing. Information and programs used for processing the game may be acquired from an external device via the communication unit 11. For example, the game application program may be acquired from a predetermined application distribution server. Hereinafter, the application program is also simply referred to as an application. Further, for example, the information used for processing the game may be acquired from the server device of the game provider.

The display unit 13 includes a display device such as a liquid crystal display or an organic EL display. The display unit 13 can display various screens.

The input unit 14 includes an input interface that detects a user operation on the information processing device 10. The input interface may include, for example, a physical key and a pointing device. The pointing device may include, for example, a mouse, a touch pad, and a touch panel integrally provided with the display unit 13.

The control unit 15 includes one or more processors. The processor may include a general-purpose processor that realizes a specific function by reading a specific program, and a dedicated processor specialized for specific processing. The control unit 15 controls the overall operation of the information processing device 10. For example, the control unit 15 executes a game application according to a user operation on the display unit 13. Further, the control unit 15 executes various kinds of processing regarding the game.

For example, as shown in FIG. 2 and FIG. 3, the control unit 15 controls the field object 20, the first object 21, the second object 22, and the virtual camera in the three-dimensional virtual space in which the world coordinate system is set. 24 and are arranged. In FIG. 2, the illustration of the virtual camera 24 is omitted. In FIG. 3, the illustration of the second object 22 is omitted. The world coordinate system includes, for example, an Xw axis, a Yw axis, and a Zw axis.

The field object 20 corresponds to a virtual field (for example, the ground). A texture image of a field (for example, the ground) may be projected on the field object 20. The field object 20 may be, for example, a sheet-shaped object having substantially no thickness.

At least a part of the field object 20 has a curved shape. The entire field object 20 may have a curved shape. The curved surface shape may be composed of one or more free-form surfaces, or may be composed of a plurality of polygons. Hereinafter, the curved surface shape portion of the field object 20 is also referred to as a curved surface portion. For example, the shape of the curved surface portion of the field object 20 may substantially match the curved surface shape that is convex in the Zw axis positive direction. Further, for example, the curved surface portion of the field object 20 has a shape in which a curve that is convex in the Zw axis positive direction on the Yw-Zw plane is extended in the Xw axis direction as shown in FIGS. 2 and 3, for example. You may match substantially.
Here, “the shape of the curved surface portion substantially matches the predetermined shape” means that the shape of the curved surface portion may differ from the predetermined shape in details. For example, the shape of the curved surface portion may be a shape in which irregularities or holes are formed in at least part of the predetermined shape.

A movable area in which the first object 21 can move may be set on the field object 20 as described later. For example, the movable area may correspond to a road on the field or the like. An entry prohibited area in which the first object 21 cannot enter may be set on the field object 20. For example, the no-entry area may correspond to rivers, ponds, seas, etc. on the field.

The first object 21 corresponds to a game medium that can move within the movable area on the field object 20. The game medium that can move within the movable area on the field object 20 is, for example, a user character operated by a user, a fellow character that automatically moves after the user character, and an NPC (Non Player Character) that automatically moves. Etc. may be included. A texture image of the corresponding first game medium may be projected on the first object 21. The first object 21 is arranged on the surface of the field object 20 on the Zw axis positive direction side. In the present embodiment, the first object 21 corresponding to the user character is arranged in the target area 23 on the field object 20. The target area 23 is at least a part of the movable area described above.

The second object 22 corresponds to a game medium that does not move on the field object 20. The game medium that does not move on the field object 20 may include installations such as buildings, walls, and trees. A texture image of the corresponding second game medium may be projected on the second object 22. The second object 22 is arranged on the surface of the field object 20 on the Zw axis positive direction side.

The shapes of the first object 21 and the second object 22 are arbitrarily determined. For example, the first object 21 and the second object 22 may have a planar shape with no thickness.

The orientations of the arranged first object 21 and second object 22 may be controlled by the control unit 15 so that the virtual camera 24 satisfies a predetermined condition.

For example, the predetermined condition may include a condition that the specific direction set for the first object 21 and the second object 22 is substantially parallel to the optical axis 25 of the virtual camera 24. The specific direction may be the normal direction of the object having a planar shape. Alternatively, the specific direction may be any direction indicated by the object coordinate system set for the object.

Further, for example, the predetermined condition may include a condition that the specific direction set for the first object 21 and the second object 22 faces the virtual camera 24.

The virtual camera 24 is used for a process of displaying a field screen, which will be described later, on the display unit 13. The position, orientation, and field of view of the virtual camera 24 are arbitrarily determined.

For example, as shown in FIG. 3, the virtual camera 24 may be located on the Zw axis positive direction side with respect to the field object 20. The orientation of the virtual camera 24 may be determined so that the optical axis 25 is substantially parallel to the Yw-Zw plane. The orientation of the virtual camera 24 may be determined so that the optical axis 25 intersects the field object 20. The right direction when viewed from the virtual camera 24 may substantially match the Xw axis positive direction. The angle formed by the normal line of the curved surface portion of the field object 20 and the straight line parallel to the optical axis 25 of the virtual camera 24 may differ depending on the distance from the virtual camera 24 in the optical axis 25 direction. The position, orientation, and visual field of the virtual camera 24 may be determined so that the target area 23 is included in the visual field of the virtual camera 24. The position, orientation, and visual field of the virtual camera 24 may be set such that at least a part of the curved surface portion of the field object 20 is included in the visual field of the virtual camera 24. When the target area 23 is included in the visual field of the virtual camera 24, at least a part of the first object 21 corresponding to the user character is included in the field screen described below.

The control unit 15 causes the display unit 13 to display the game screen by perspective projection in which the virtual space is viewed from the virtual camera 24. Specifically, the control unit 15 generates a two-dimensional image in which an object in the virtual space is drawn on a two-dimensional plane by perspective projection with the virtual camera 24 as the viewpoint. The control unit 15 causes the display unit 13 to display the game screen including the two-dimensional image. Hereinafter, the game screen including the two-dimensional image is also referred to as a field screen.

The field screen may include at least a part of the field object 20, at least a part of the first object 21, and at least a part of the second object 22. For example, the field screen shown in FIG. 4 includes a part of the field object 20, a first object 21 corresponding to the user character and located in the target area 23, and a second object 22 corresponding to the building.

The control unit 15 moves at least one of the field object 20, the first object 21, and the second object 22 relative to the virtual camera 24. Moving the object relative to the virtual camera 24 includes moving at least one of the virtual camera 24 and the object in the virtual space. As described above, the second object 22 corresponding to the game content that does not move on the field object 20 moves integrally with the field object 20.

The process of relatively moving the first object 21, which is the user character, with respect to the virtual camera 24 will be described in detail. When the first object 21 is located in the target area 23, the control unit 15 moves the first object 21 relative to the virtual camera 24 in the target area 23 in response to a user operation or automatically. Move to. At this time, the first object 21 is also moving relative to the field object 20. Therefore, on the field screen, the field object 20 does not move, but the first object 21 moves in the target area 23.

When the moving first object 21 reaches the end of the target area 23, the control unit 15 stops the relative movement of the first object 21 with respect to the virtual camera 24. On the other hand, the control unit 15 continues the relative movement of the first object 21 with respect to the field object 20. In other words, the control unit 15 stops the first object 21 that moves relative to the virtual camera 24 in a certain direction, and moves the field object 20 relative to the virtual camera 24 in a direction opposite to the direction. .. Therefore, on the field screen, the first object 21 does not move, but the field object 20 moves.

The process of moving the field object 20 relative to the virtual camera 24 will be described in detail. For example, when the moving first object 21 reaches the end of the target area 23 in the positive Xw axis direction, the control unit 15 translates the field object 20 in the negative Xw axis direction. On the contrary, when the moving first object 21 reaches the end of the target area 23 in the negative direction of the Xw axis, the control unit 15 translates the field object 20 in the positive direction of the Xw axis. By the field object 20 moving in parallel in the Xw axis direction, the field object 20 moves in the left-right direction on the field screen.

Further, for example, when the moving first object 21 reaches the front end of the target area 23 when viewed from the virtual camera 24, the control unit 15 slides the field object 20 toward the back side. On the contrary, when the moving first object 21 reaches the end on the far side of the target area 23 when viewed from the virtual camera 24, the control unit 15 slides the field object 20 toward the front side. As described above, the field object 20 is, for example, a sheet-like object having substantially no thickness. When the field object 20 is slid, for example, as shown by the double-headed arrow in FIG. 3, the sheet-shaped field object 20 is sent out along a trajectory including a cross-sectional shape of the field object 20 by a plane substantially parallel to the Yw-Zw plane. It may include a mode of moving as described above. As the field object 20 slides, the field object 20 slides on the field screen toward the rear side or the front side.

When the field object 20 is moved relative to the virtual camera 24, the control unit 15 determines the position of the target area 23 on the field object 20 according to the relative positional relationship between the virtual camera 24 and the field object 20. At least one of the size and the shape is changed. Moving the field object 20 relative to the virtual camera 24 includes moving at least one of the virtual camera 24 and the field object 20 in the virtual space.

For example, the control unit 15 may change the position of the target area 23 on the field object 20 so that the target area 23 is included in the visual field of the virtual camera 24. The control unit 15 may change the position of the target area 23 on the field object 20 so as to maintain the relative position of the target area 23 with respect to the virtual camera 24.

Further, for example, the control unit 15 may change at least one of the size and shape of the target area 23 on the field object 20 according to the movable area on the field object 20 included in the field of view of the virtual camera 24. Good. As a specific example, an example in which the movable area on the field object 20 is a road will be described. As the first object 21, which is the user character, advances along the road on the field object 20, for example, the width and shape of the road may change. In such a case, the control unit 15 may change at least one of the size and the shape of the target area 23 according to the width and the shape of the road included in the visual field of the virtual camera 24.

Further, for example, in a configuration in which the shape of the field object 20 (for example, the curvature of the curved surface portion) can change, the control unit 15 changes the position of the target area 23 on the field object 20 according to the change in the shape of the field object 20. At least one of the size, the size, and the shape may be changed.

The control unit 15 corrects the size of the first object 21 according to the distance between the virtual camera 24 and the first object 21 in the optical axis 25 direction of the virtual camera 24. Hereinafter, the distance from the virtual camera 24 in the optical axis 25 direction is also referred to as the optical axis direction distance. By correcting the size of the first object 21, for example, a change in the size of the projected image of the first object 21 due to perspective projection can be reduced. The details will be described below.

As described above, according to the perspective projection, the size of the projected image of the object changes according to the distance in the optical axis direction. Specifically, the projected image of the object becomes larger as the distance in the optical axis direction becomes shorter, and becomes smaller as the distance in the optical axis direction becomes longer. On the other hand, the size of the object itself is made smaller as the distance in the optical axis direction becomes shorter and becomes larger as the distance in the optical axis direction becomes longer, thereby reducing the change in the size of the projected image of the object with respect to the distance in the optical axis direction. can do. For example, as shown in FIG. 5, when the distance in the optical axis direction changes from n to n±d, if the size of the object itself is corrected by the magnification α=(n±d)/n, the distance before and after the change in the optical axis direction is changed. Then, the sizes of the projected images of the object become equal.

As shown in FIG. 6, when the optical axis direction distance of the first object 21 is within the first range, the control unit 15 enlarges the first object 21 as the optical axis direction distance increases, and the optical axis direction distance increases. Becomes shorter, the first object 21 is made smaller. The first range is a range of distance in the optical axis 25 direction of the virtual camera 24 (that is, a range of optical axis direction distance) corresponding to the target area 23 on the field object 20. The first range may be represented by the following equation (1), where L is the distance in the optical axis direction.
n−d≦L≦n+d (1)
The control unit 15 may correct the size of the first object 21 by the magnification α according to the optical axis direction distance L. The size of the first object 21 may change due to the correction. The magnification α of the size of the first object 21 when the distance L in the optical axis direction is within the first range may be expressed by the following equation (2), for example.
α=L/n (n−d≦L≦n+d) (2)

The effect produced by such a configuration will be described in comparison with the case where the size of the first object 21 is not corrected.

As shown in FIG. 7, if the size of the first object 210 is not corrected, the visibility of the field screen may not always be sufficient. Specifically, according to perspective projection, the shorter the distance L of the first object 210 in the optical axis direction, the larger the projected image of the first object 210 (the first object 210b with respect to the first object 210a in the figure). The projected image of the first object 210b located on the near side on the field screen is relatively large. For this reason, the probability that another object will be hidden by the shadow of the first object 210b increases, so that the visibility of the screen is not always sufficient. On the other hand, the longer the optical axis direction distance L of the first object 210, the smaller the projected image of the first object 210 (the first object 210c with respect to the first object 210a in the figure). The projected image of the first object 210c located on the far side on the field screen is relatively small. Therefore, the visibility of the first object 210c is not always sufficient.

On the other hand, for example, when the first object 21 moves within the target area 23, the control unit 15 corrects the size of the first object 21 according to the optical axis direction distance L. Specifically, when the first object 21 exists in the target area 23, the distance of the first object 21 in the optical axis direction is within the first range described above. The control unit 15 may correct the size of the first object 21 by using, for example, the magnification α calculated by the above-described formula (2). By correcting the size of the first object 21 by the magnification α, for example, as shown in FIG. 7, the size of the projected image of the first object 21 can be constant within the target region 23 (the first in the figure). First object 21b and 21c for one object 21a). As described above, the target area 23 is an area on the field object 20 in which the first object 21 corresponding to the user character can exist. Therefore, the user who operates the user character is likely to pay attention to the target area 23 on the field screen. Therefore, in the target region 23 having a high probability of being noticed, the change in the size of the projected image of the first object 21 is reduced, so that the visibility of the field screen is improved.

When the distance L in the optical axis direction of the first object 211 corresponding to the first game medium other than the user character such as NPC is within the second range, the control unit 15 increases the distance L in the optical axis direction. The object 211 is made smaller and the first object 211 is made larger as the distance L in the optical axis direction becomes shorter. The second range is a range of the distance of the virtual camera 24 in the optical axis 25 direction (that is, a range of the optical axis direction distance L). The second range may be represented by the following expression (3), for example.
n−d−e≦L≦n−d, n+d≦L≦n+d+e (3)
The magnification α of the size of the first object 211 when the distance L in the optical axis direction is within the second range may be expressed by the following expression (4), for example.

With such a configuration, as will be described below, the sense of discomfort in the field screen is reduced.
For example, as shown in FIG. 6, when the optical axis direction distance L=n±d, the magnification α=(n±d)/n. Therefore, when the first object 211 is located at the front or rear end of the target area on the field screen, the magnification α of the first object 211 is not 1.
When the magnification α≠1, for example, the scales of the second object 22 and the first object 211 corrected with the magnification α≠1 do not match. On the other hand, when the first object 211 moves away from the target area 23 toward the front side or the back side on the field screen, the magnification α of the size of the first object 211 becomes 1 in the above-described second range. Get closer. For this reason, for example, the scale of the second object 22 and the scale of the first object 211 distant from the target area 23 to the front side or the back side on the field screen match, so that the sense of discomfort on the field screen is reduced.

For example, when the optical axis direction distance L of the first object 211 corresponding to the NPC is within the third range, the control unit 15 maintains the size of the first object 211 constant regardless of the optical axis direction distance L. .. In other words, the control unit 15 stops changing the size of the first object 211 according to the optical axis direction distance L. The third range is a range of the distance of the virtual camera 24 in the optical axis 25 direction (that is, a range of the optical axis direction distance L). The third range may be expressed by the following equation (5), for example.
L≦n−d−e, n+d+e≦L (5)
The magnification α of the size of the first object 211 when the distance L in the optical axis direction is within the third range may be expressed by the following equation (6), for example.
α=1 (L≦n−d−e, n+d+e≦L) (6)

The size of the projected image of the first objects 21 and 211 when the sizes of the first objects 21 and 211 are corrected according to the optical axis direction distance L will be described with reference to FIG. 7. Areas A, B, and C shown in FIG. 7 are areas on the field screen corresponding to the above-described first range, second range, and third range, respectively. In the area A, the sizes of the projected images of the first objects 21 and 211 can be constant (see the first objects 21a-21c, 211a, and 211b in the figure). In the region B, as the first object 211 moves away from the front end or the rear end of the region A, the size α of the first object 211 changes so as to approach 1 (that is, the second object 211). While approaching the same scale as the object 22, the size of the projected image of the first object 211 changes by perspective projection (see the first objects 211c and 211e in the figure). In the region C, the size of the projected image of the first object 211 changes by perspective projection while the magnification α of the first object remains 1, (see the first object 211d in the figure).

For example, as shown in FIG. 6, in the above example, the magnification α changes linearly with respect to the optical axis direction distance L in the first range and the second range. However, the change in the magnification α with respect to the optical axis direction distance L is not limited to the linear change. For example, as shown in FIG. 8, in the first range and the second range, the magnification α may change in a curve with respect to the optical axis direction distance L.

The operation of the information processing device 10 will be described with reference to FIG. 9.

Step S100: The control unit 15 arranges the virtual camera 24, the field object 20, the first object 21, and the second object 22 in the three-dimensional virtual space.

Step S101: The control unit 15 causes the display unit 13 to display a game screen by perspective projection of the virtual space with the virtual camera 24 as the viewpoint.

Step S102: The control unit 15 moves at least one of the field object 20, the first object 21, and the second object 22 relative to the virtual camera 24.

Step S103: The control unit 15 corrects the size of the first object 21 according to the distance between the virtual camera 24 and the first object 21 in the optical axis 25 direction of the virtual camera 24. The size of the first object 21 may change due to the correction. Thereafter, the process returns to step S102.

As described above, the information processing apparatus 10 according to the present embodiment determines the size of the first object 21 according to the distance between the virtual camera 24 and the first object 21 in the optical axis 25 direction of the virtual camera 24. To correct. With this configuration, for example, the change in the size of the projected image of the first object 21 due to the perspective projection can be reduced, and thus the visibility of the field screen can be improved.

Although the present invention has been described based on the drawings and the embodiments, it should be noted that those skilled in the art can easily make various variations and modifications based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions and the like included in each means and each step can be rearranged so as not to logically contradict each other, and a plurality of means and steps can be combined or divided into one. ..

For example, in the above-described embodiment, the configuration in which the size of the projected image of the first object 21 is controlled by correcting the size of the first object 21 according to the optical axis direction distance L has been described. In another embodiment, the size of the projected image of the first object 21 may be corrected without correcting the size of the first object 21.

Specifically, when the distance in the optical axis direction of the first object 21 is within the first range, the control unit 15 increases the projected image of the first object 21 as the distance in the optical axis direction increases, and The projected image of the first object 21 may be made smaller as the distance becomes shorter. When the distance in the optical axis direction of the first object 211 corresponding to the first game medium other than the user character is within the second range, the control unit 15 makes the projected image of the first object 211 increase as the distance in the optical axis direction increases. The projection image of the first object 211 may be increased as the distance decreases in the optical axis direction. When the distance in the optical axis direction of the first object 211 is within the third range, the control unit 15 may keep the size of the projected image of the first object 211 constant regardless of the distance in the optical axis direction.

Further, although the game according to the above-described embodiment has been described as being a role playing game, a simulation game, or the like, the present invention can be applied to games of various genres in which the game medium is moved on the field in the game. is there.

In addition, in the above-described embodiment, a part of various game screens is a web display displayed on the information processing device 10 based on data generated by a server device that can communicate with the information processing device 10. A part (for example, a header area and a footer area where menu buttons are arranged) may be a native display displayed by a native application installed in the information processing device 10. As described above, the game according to the above-described embodiment may be a hybrid game in which each of the information processing device 10 and the server device plays a part of processing.

Moreover, in order to make it function as the information processing apparatus 10 according to the above-described embodiment, an apparatus capable of executing information processing, such as a computer or a mobile phone, can be preferably used. Such a device is realized by storing a program describing the processing content for realizing each function of the information processing device 10 according to the embodiment in a storage unit of the device and reading and executing the program by the CPU of the device. It is possible.

10 information processing device 11 communication unit 12 storage unit 13 display unit 14 input unit 15 control unit 20 field object 21, 21a-21c, 210a-210c, 211a-211e first object 22 second object 23 target area 24 virtual camera 25 light axis

Claims (8)

Arranging a virtual camera, a field object, and an object located on the field object in a three-dimensional virtual space,
Displaying a game screen including a two-dimensional image obtained by projecting the field object and the object by perspective projection with the virtual camera as a viewpoint;
Moving at least one of the field object and the object relative to the virtual camera;
If an object of the objects that can be operated by the user is outside the predetermined range on the field object, the size of the image corresponding to the object in the game screen is changed, and the object of the object can be operated by the user. If the object is within the predetermined range on the field object, a correction step of not changing the size of the image corresponding to the object in the game screen,
To the information processing device,
The predetermined range is included in an area in which an object operable by a user among the objects can be moved when the game screen including the field object is displayed.
A program to characterize that. The program according to claim 1,
A program in which at least one of the position, size, and shape of the predetermined range on the field object changes according to the relative positional relationship between the virtual camera and the field object. The program according to any one of claims 1 and 2,
A program that changes at least one of the position, size, and shape of the predetermined range on the field object according to the change of the shape of the field object. The program according to any one of claims 1 to 3,
The field object has a curved surface portion,
A program in which an angle formed by a normal line of the curved surface portion and a straight line parallel to the optical axis of the virtual camera differs depending on a distance from the virtual camera in the optical axis direction of the virtual camera. The program according to any one of claims 1 to 4,
The object includes a first object movable on the field object and a second object not moving on the field object,
A program for correcting the size of the first object in the correction step. The program according to any one of claims 1 to 5,
When the object moves within the predetermined range by a user operation or automatically, when the object reaches an end within the predetermined range, the field object moves relative to the virtual camera. program. A display unit and a control unit,
The control unit is
A virtual camera, a field object, and an object located on the field object are arranged in a three-dimensional virtual space,
A game screen including a two-dimensional image obtained by projecting the field object and the object by perspective projection from the virtual camera as a viewpoint,
At least one of the field object and the object is moved relative to the virtual camera,
If an object of the objects that can be operated by the user is outside the predetermined range on the field object, the size of the image corresponding to the object in the game screen is changed, and the object of the object can be operated by the user. When the object is within the predetermined range on the field object, the size of the image corresponding to the object in the game screen is not changed,
The predetermined range is included in an area in which an object operable by a user among the objects can be moved when the game screen including the field object is displayed.
An information processing device, characterized in that A method of controlling an information processing device, comprising:
Arranging a virtual camera, a field object, and an object located on the field object in a three-dimensional virtual space,
Displaying a game screen including a two-dimensional image obtained by projecting the field object and the object by perspective projection with the virtual camera as a viewpoint;
Moving at least one of the field object and the object relative to the virtual camera;
If an object of the objects that can be operated by the user is outside the predetermined range on the field object, the size of the image corresponding to the object in the game screen is changed, and the object of the object can be operated by the user. If the object is within the predetermined range on the field object, a correction step of not changing the size of the image corresponding to the object in the game screen,
Including
The predetermined range is included in an area in which an object operable by a user among the objects can be moved when the game screen including the field object is displayed.
A control method characterized by the above.

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