JP4326585B2 - Information processing program and information processing apparatus - Google Patents

Description

  The present invention relates to a technique for operating an object in a three-dimensional space displayed on a two-dimensional screen.

  2. Description of the Related Art Conventionally, there is a technique for operating a virtual three-dimensional space object displayed on a screen by specifying a predetermined coordinate position on the two-dimensional screen using a pointing device such as a mouse or a touch panel.

  For example, Patent Document 1 discloses a technique for moving, rotating, and enlarging / reducing a 3D object by designating one coordinate position on a touch panel.

Further, in Patent Document 2, an operation coordinate system (x axis, y axis, z axis) of an object is provided in a three-dimensional space where the object is arranged, and a desired one axis is designated as a rotation axis. A technique for rotating an object by drawing a tip portion of an arrow of any remaining axis in a desired rotation direction is shown.
JP 2004-259065 A JP-A-10-293864

  However, in the technique described in Patent Document 1, for example, when moving a 3D object, only the moving direction and moving speed of the 3D object are determined according to the designated coordinate position. You can't get an intuitive feel as if you were actually grabbing it with your hand.

  In the technique described in Patent Document 2, when the object is rotated in a desired direction, the position and angle of the operation coordinate system must first be set, which increases the number of procedures necessary for the operation. There is.

  Therefore, an object of the present invention is to improve operability when an object in a virtual three-dimensional space is operated using a pointing device, and to make the object operable more easily and appropriately.

  In order to achieve the above object, the present invention employs the following configuration. The reference numerals in parentheses show an example of the correspondence with the drawings in order to help understanding of the present invention, and do not limit the scope of the present invention.

  The first aspect of the present invention provides a computer (21) with a display step (S72), a detection step (S14, S22, S38, S48, S56, S76, S88) and a conversion step (S16, S24, S30, S40, S50, S58, S78, S90) and an information processing program (41) for executing control steps (S18, S26, S32, S42, S52, S60, S66, S70, S80, S92). The display step is a step of displaying an image when the object arranged in the virtual three-dimensional space is viewed from the virtual camera on the display screen (12). The detecting step is a step of detecting an indication point represented by two-dimensional coordinates based on an output signal from the pointing device (15). The conversion step is a step of converting the indicated point into one or more control points represented by three-dimensional coordinates by a predetermined calculation process. The control step is a step of controlling the movement of the object using the control point. The control point converted in the conversion step is a point in the virtual three-dimensional space displayed at the same position as the indication point on the display screen, and the position in the depth direction depends on the situation. Will change accordingly.

  Here, as a typical method for generating an image when an object placed in a virtual three-dimensional space is viewed from a virtual camera, the vertex coordinates (world coordinate system) of each polygon constituting the object are represented by a camera coordinate system. There is a method of projecting and transforming to a virtual screen after converting to. In such coordinate conversion, camera setting information indicating the position, tilt (rotation angle), orientation (gaze direction), viewing angle, etc. of the virtual camera is appropriately used.

  As a pointing device, for example, a touch panel or a mouse can be used.

  Also, “changes depending on the situation” means that it changes according to the use of the control point in the control step, changes depending on the type of object to be controlled in the control step, Including at least changing depending on the operation mode, and further including changing with time.

  According to a second aspect of the present invention, in the first aspect, the position in the depth direction of the control point converted in the conversion step changes according to the use of the control point in the control step. Features.

  According to a third aspect of the present invention, in the first aspect, the position in the depth direction of the control point converted in the conversion step varies depending on the type of object to be controlled in the control step. It is characterized by doing.

  According to a fourth aspect of the present invention, in the first aspect, the information processing program further sets and updates the operation mode of the object, and further stores the set or updated operation mode in a storage device. What is executed by the computer is characterized in that the position in the depth direction of the control point converted in the conversion step changes depending on the operation mode stored in the storage device.

  According to a fifth aspect of the present invention, in the first aspect, the converting step includes a step of converting the indication point into a basic control point represented by three-dimensional coordinates, the basic control point, and a virtual camera. A step of obtaining a straight line connecting the positions of the straight line and a step of obtaining an intersection of the straight line and a virtual surface set in a virtual three-dimensional space (FIG. 12), wherein the position or shape of the virtual surface is a situation It changes according to. Here, the virtual surface may be a flat surface or a curved surface.

  In a sixth aspect of the present invention based on the fifth aspect, the information processing program sets and updates the operation mode of the object (S68), and stores the set or updated operation mode (51) in the storage device. The step of storing in (24) is further executed by the computer, and the relative position of the virtual plane with respect to the object changes depending on the operation mode stored in the storage device. Features.

According to a seventh aspect of the present invention, in the first aspect, in the conversion step, the indication point detected in the detection step includes a first control point for controlling the first object, The first control point and the second control point that are converted to the second control point for controlling the two objects and converted in the conversion step are both on the display screen. In the virtual three-dimensional space displayed at the same position as the position of the indication point in the control step, and in the control step, the first object and the second object are the first control point and The second control points are used individually and simultaneously for control (FIG. 14).

  The eighth aspect of the present invention includes a display screen (12), a pointing device (15), a display control means (21), a detection means (21), a conversion means (21), and a control means (21). Is an information processing apparatus. The display control means is means for displaying an image when an object arranged in the virtual three-dimensional space is viewed from the virtual camera on the display screen. The detecting means is means for detecting an indication point represented by two-dimensional coordinates based on an output signal from the pointing device. The converting means is means for converting the indicated point into one or more control points represented by three-dimensional coordinates by a predetermined calculation process. The control means is means for controlling the movement of the object using the control point. The control point converted by the conversion means is a point in the virtual three-dimensional space that is displayed at the same position as the indication point on the display screen, and the position in the depth direction depends on the situation. Will change accordingly.

  A ninth aspect of the present invention is an information processing program for causing a computer (21) to execute a display step, a detection step, a conversion step, and a control step. The display step is a step of displaying, on the screen (12), an image when one or more objects arranged in the virtual three-dimensional space are viewed from the virtual camera. The detecting step is a step of detecting an indication point represented by two-dimensional coordinates based on an output signal from the pointing device (15). The conversion step is a step of converting the indicated point into a plurality of control points represented by three-dimensional coordinates by a predetermined calculation process. The control step is a step of controlling movement of the one or more objects using the control point. In the conversion step, the indication point detected in the detection step is converted into a first control point and a second control point, and in the control step, the first control point and the second control point are converted. The movement of the one or more objects is controlled using the control points (FIG. 21).

  In a tenth aspect of the present invention based on the ninth aspect described above, in the control step, the first object and the second object arranged in the virtual three-dimensional space are the first control point and the Control is performed individually and simultaneously using the second control points (FIG. 21).

  The eleventh aspect of the present invention includes a display screen (12), a pointing device (15), display control means (21), detection means (21), conversion means (21), and control means (21). Is an information processing apparatus. The display control means is a means for displaying an image when one or more objects arranged in the virtual three-dimensional space are viewed from the virtual camera on the display screen. The detecting means is means for detecting an indication point represented by two-dimensional coordinates based on an output signal from the pointing device. The conversion means is means for converting the indicated point into a plurality of control points represented by three-dimensional coordinates by a predetermined calculation process. The control means is means for controlling movement of the one or more objects using the control points. The converting means converts the indication point detected by the detecting means into a first control point and a second control point, and the control means includes the first control point and the second control point. The movement of the one or more objects is controlled using the control points (FIG. 21).

  According to the first aspect of the present invention, since the position in the depth direction of the control point corresponding to the indication point automatically changes according to the situation, the operator purposely designates the position in the depth direction. The movement of the object can be easily and appropriately controlled without taking time and effort.

  According to the second aspect of the present invention, since the position in the depth direction of the control point corresponding to the instruction point changes according to the use of the control point, the control point is used for various purposes. However, the operator can easily and appropriately control the movement of the object without having to bother to specify the position of the control point in the depth direction to the optimum position for each application. It becomes possible.

  According to the third aspect of the present invention, since the position in the depth direction of the control point corresponding to the instruction point changes according to the type of the object to be controlled, the operator has to bother the depth of the control point. It is possible to easily and appropriately control the movement of the object without taking the trouble of designating the position of the direction to the optimum position according to the type of the object.

  According to the fourth aspect of the present invention, since the position in the depth direction of the control point corresponding to the instruction point changes according to the operation mode of the object to be controlled, the operator has to bother the control point. It is possible to easily and appropriately control the movement of the object without taking the trouble of designating the position in the depth direction to an optimal position according to the operation mode of the object.

  According to the fifth aspect of the present invention, since the indication point can be converted into the control point by a uniform method, the algorithm for coordinate conversion can be further simplified.

  According to the sixth aspect of the present invention, since the relative position of the virtual plane with respect to the object changes according to the operation mode of the object, the movement of the object can be controlled more appropriately according to the operation mode.

  According to the seventh aspect of the present invention, it is possible to easily operate two objects in a virtual three-dimensional space simultaneously and in synchronization with each other using a pointing device. In addition, since the position on the screen of the instruction point and the two control points based on the instruction point coincide with each other, the operator can easily grasp the positions of the two control points, and the operability is good. .

  According to the eighth aspect of the present invention, the same effect as in the first aspect can be obtained.

  According to the ninth aspect of the present invention, since one or more objects in the virtual three-dimensional space can be operated using two control points based on the indication point, various operations can be performed by one or more objects. It becomes possible to make it.

  According to the tenth aspect of the present invention, it becomes easy to operate two objects in a virtual three-dimensional space simultaneously and in synchronization with each other using a pointing device.

  According to the eleventh aspect of the present invention, the same effect as in the ninth aspect can be obtained.

  The configuration and operation of the game device according to one embodiment of the present invention will be described below.

  FIG. 1 is an external view of a game device according to an embodiment of the present invention. In FIG. 1, the game apparatus 10 includes a first LCD (Liquid Crystal Display) 11 and a second LCD 12. The housing 13 includes an upper housing 13a and a lower housing 13b. The first LCD 11 is accommodated in the upper housing 13a, and the second LCD 12 is accommodated in the lower housing 13b. The resolutions of the first LCD 11 and the second LCD 12 are both 256 dots × 192 dots. In this embodiment, an LCD is used as the display device. However, any other display device such as a display device using EL (Electro Luminescence) can be used. An arbitrary resolution can be used.

  The upper housing 13a is formed with sound release holes 18a and 18b for releasing sound from a pair of speakers (30a and 30b in FIG. 2) to be described later.

  The lower housing 13b is provided with a cross switch 14a, start switch 14b, select switch 14c, A button 14d, B button 14e, X button 14f, Y button 14g, L button 14L and R button 14R as input devices. Yes. As a further input device, a touch panel 15 is mounted on the screen of the second LCD 12. The lower housing 13b is also provided with a power switch 19 and an insertion port for storing the memory card 17 and the stick 16.

  As the touch panel 15, an arbitrary system such as a resistive film system, an optical system (infrared system), and a capacitive coupling system can be used. The touch panel 15 has a function of outputting coordinate data corresponding to the contact position when the surface of the touch panel 15 is touched with the stick 16. In the following description, it is assumed that the player operates the touch panel 15 with the stick 16, but it is of course possible to operate the touch panel 15 with a pen (stylus pen) or a finger instead of the stick 16. In the present embodiment, the touch panel 15 having a resolution (detection accuracy) of 256 dots × 192 dots is used as in the resolution of the second LCD 12. However, the resolution of the touch panel 15 and the resolution of the second LCD 12 are not necessarily the same.

  The memory card 17 is a recording medium on which a game program is recorded, and is detachably attached to an insertion port provided in the lower housing 13b.

  Next, the internal configuration of the game apparatus 10 will be described with reference to FIG.

  In FIG. 2, a CPU core 21 is mounted on the electronic circuit board 20 accommodated in the housing 13. A connector 23 is connected to the CPU core 21 via a bus 22, an input / output interface circuit (referred to as I / F circuit in the drawing) 25, a first GPU (Graphics Processing Unit) 26, a second GPU 27, a RAM 24, and An LCD controller 31 is connected. The memory card 17 is detachably connected to the connector 23. The memory card 17 includes a ROM 17a that stores a game program and a RAM 17b that stores backup data in a rewritable manner. The game program stored in the ROM 17a of the memory card 17 is loaded into the RAM 24, and the game program loaded into the RAM 24 is executed by the CPU core 21. In addition to the game program, the RAM 24 stores temporary data obtained by the CPU core 21 executing the game program and data for generating a game image. The I / F circuit 25 is connected to the touch panel 15, the right speaker 30a, the left speaker 30b, and the operation switch unit 14 including the cross switch 14a and the A button 14d shown in FIG. The right speaker 30a and the left speaker 30b are respectively arranged inside the sound release holes 18a and 18b.

  A first VRAM (Video RAM) 28 is connected to the first GPU 26, and a second VRAM 29 is connected to the second GPU 27. In response to an instruction from the CPU core 21, the first GPU 26 generates a first game image based on data for generating a game image stored in the RAM 24, and draws the first game image in the first VRAM 28. Similarly, the second GPU 27 generates a second game image in accordance with an instruction from the CPU core 21 and draws it in the second VRAM 29. The first VRAM 28 and the second VRAM 29 are connected to the LCD controller 31.

  The LCD controller 31 includes a register 32. The register 32 stores a value of 0 or 1 according to an instruction from the CPU core 21. When the value of the register 32 is 0, the LCD controller 31 outputs the first game image drawn in the first VRAM 28 to the first LCD 11 and the second game image drawn in the second VRAM 29 as the second game image. Output to the LCD 12. When the value of the register 32 is 1, the first game image drawn in the first VRAM 28 is output to the second LCD 12, and the second game image drawn in the second VRAM 29 is output to the first LCD 11. To do.

  Note that the configuration of the game apparatus 10 as described above is merely an example, and the present invention is not limited to a pointing device (not limited to a touch panel, but may be a mouse, a touch pad, a joystick, or the like) and a display device. It can be applied to the device. In addition, the game program of the present invention is not only supplied to the information processing apparatus through an external storage medium such as the memory card 17, but may be supplied to the information processing apparatus through a wired or wireless communication line. It may be recorded in advance in a nonvolatile storage device inside the processing apparatus.

  FIG. 3 shows a memory map of the RAM 24. The storage area of the RAM 24 is roughly divided into a program storage area and a data storage area.

  A game program 41 is loaded from the ROM 17a of the memory card 17 into the program storage area.

  In the data storage area, dog information 42, item information 43, camera setting information 44, instruction point coordinates 45, and virtual surface information 46 are stored.

  The dog information 42 is various information regarding dogs (more precisely, objects representing dogs) existing in the virtual three-dimensional space. Specifically, as shown in FIG. 4, shape data, texture data, arrangement data, It consists of coordinates, operation mode 51, and attention point coordinates 52. In the present embodiment, it is assumed that dogs arranged in the virtual three-dimensional space autonomously move in the virtual three-dimensional space as if they were moving at their own will according to a predetermined algorithm.

  The shape data is data relating to the shape of the object, and is, for example, vertex coordinates of polygons constituting the object. The texture data is image data that is pasted on the polygons that make up the object. The arrangement coordinates are the arrangement coordinates of the dog in the virtual three-dimensional space.

The operation mode 51 is a dog's current operation mode. As described later, there are six types of operation modes: a normal mode, an attention mode, a licking mode, a rope turning mode, a biting mode, and a turning mode. Mode exists. The operation mode 51 changes appropriately according to the algorithm described above. For example, when “rope” among items to be described later is arranged in the virtual three-dimensional space, the dog is automatically controlled to approach the rope and add the end of the rope. Then, when the dog adds the end of the rope, the operation mode of the dog is changed to the rope turning mode.

  The attention point coordinate 52 is a coordinate indicating the attention point of the dog in the virtual three-dimensional space. The attention point coordinates 52 are used when the operation mode of the dog is the attention mode, the licking mode, the rope turning mode, and the turning mode, and specifically, the dog's head so that the dog faces the attention point coordinates 52. Is controlled in position and angle.

  The item information 43 is various information regarding various items arranged in virtual three-dimensional. In the present embodiment, it is assumed that items arranged in a virtual three-dimensional manner include a ball, a rope, and a towel as shown in FIG. Information about the ball includes shape data, texture data, and arrangement coordinates 53. The arrangement coordinates 53 are the arrangement coordinates of the ball in the virtual three-dimensional space. Information about the rope includes shape data, texture data, and front end coordinates 54. The near-end coordinate 54 is an arrangement coordinate of the near-end end of the rope in the virtual three-dimensional space (the end that is displayed so as to be in front of the rope when viewed from the player). Information on towels includes shape data, texture data, front end coordinates 55, and operation mode 56. The front end coordinates 55 are the arrangement coordinates of the front end of the towel in the virtual three-dimensional space (the end of the towel that is displayed so as to be in front when viewed from the player).

  The camera setting information 44 is information including various setting values related to the virtual camera arranged in the virtual three-dimensional space. For example, the arrangement coordinates, inclination (rotation angle), direction (gaze direction), and viewing angle of the virtual camera. Etc. FIG. 6 shows an arrangement example of virtual cameras in the virtual three-dimensional space. On the second LCD 12, a scene in which an object such as a dog, an item, or the ground arranged in the virtual three-dimensional space is viewed from the virtual camera is displayed as a game image. FIG. 7 shows a game image displayed on the second LCD 12 based on the virtual camera of FIG. Since a method for generating an image in a virtual three-dimensional space based on a virtual camera is a well-known technique, a detailed description thereof is omitted here, but in brief, the vertex of each object represented in the world coordinate system The coordinates (more precisely, the vertex coordinates of the polygons constituting the object) are converted into a camera coordinate system based on the virtual camera, and further the perspective projection conversion is performed to convert the vertex coordinates into two-dimensional coordinates.

  The designated point coordinates 45 are coordinates indicating a contact position when the player touches the touch panel 15 with a finger or a stick 16 and are represented by two-dimensional coordinates. The designated point coordinates 45 are updated as needed based on the output signal of the touch panel 15.

  The virtual surface information 46 is information indicating a correspondence relationship between the type of the control target object and the operation mode of the control target object, and the virtual surface set in the virtual three-dimensional space. The virtual plane is a virtual plane used when the designated point coordinate 45 is converted into a point (control point) in the virtual three-dimensional space used for controlling the movement of the object. There may be a curved surface. The virtual surface may be visible or invisible. Details of coordinate conversion from the designated point coordinates 45 to the control points using the virtual plane will be described later.

  FIG. 6 shows an example of the virtual surface information 46. In this example, when the control target object is a ball or a rope, the first virtual plane (see FIG. 9) is used for the calculation of the coordinate conversion. The first virtual plane is used when the control target object is a towel and its operation mode is a free mode, and the fifth virtual surface is used when the control target object is a towel and its operation mode is a bite mode. A plane is used. The second virtual surface is used when the operation target object is a dog and the operation mode is the attention mode, and the third virtual surface is used when the operation target object is a dog and the operation mode is the licking mode. Is used, and the fourth virtual plane is used when the operation target object is a dog and its operation mode is the rope turning mode, and when the operation target object is a dog and its operation mode is the turn mode A fifth virtual plane is used. Note that when the operation target object is a dog and its operation mode is the normal mode or the biting mode, the control point is not directly used for controlling the movement of the dog. It is unnecessary.

  FIG. 9 shows a specific arrangement example of the first to fifth virtual surfaces. The first virtual plane is a virtual plane perpendicular to the ground, and its position is always constant in the virtual three-dimensional space without depending on the position of the dog. The second virtual plane, the third virtual plane, and the fourth virtual plane are virtual planes perpendicular to the ground, and their positions are a predetermined distance from the dog position with reference to the dog position to be controlled. It is arranged at a position shifted in the virtual camera direction. That is, the positions of these three virtual surfaces change depending on the position of the dog to be controlled. As shown in FIG. 9, among these three virtual planes, the second virtual plane is located farthest from the dog and closest to the virtual camera, the fourth virtual plane is closest to the dog, and the virtual camera Placed farthest from the center. The fifth virtual plane is a virtual plane used when the dog operation mode is the chewing mode (that is, when the towel operation mode is the chewing mode) and when the dog operation mode is the turn mode, Located above the dog and horizontally with respect to the ground. The position of the fifth virtual plane is also always constant in the virtual three-dimensional space without depending on the position of the dog. When the fifth virtual plane is used (that is, when the dog operation mode is the chewing mode or the turn mode), the virtual camera is positioned so as to look down on the dog as shown in FIG. Temporarily changed.

  Hereinafter, with reference to FIGS. 10 to 15, a usage example of each virtual surface from the first virtual surface to the fifth virtual surface will be described.

  FIG. 10 is a diagram illustrating a usage example of the first virtual surface. The first virtual surface is a virtual surface used when the player uses a ball, a rope or a towel as an item in the virtual three-dimensional space. More specifically, the player calls an item selection screen by operating the operation switch unit 14, selects either a ball, a rope, or a towel on the item selection screen, and then touches the stick 16 on the touch panel 15. By contacting the desired position, the selected item can be arranged at a point in the virtual three-dimensional space corresponding to the position. FIG. 10 shows an example where the player places a ball. Each point on the touch panel 15 is associated one-to-one with each point on the first virtual plane (that is, a one-to-one mapping relationship), and the first corresponding to the contact position (instruction point) of the stick 16. A ball is placed at a point (control point) on the virtual plane. When the player slides the stick 16 on the touch panel 15, the position of the ball on the first virtual surface moves accordingly. Note that the coordinate conversion from the instruction point to the control point may be performed using mapping data prepared in advance, or may be performed by calculation using a matrix.

  FIG. 11 is a diagram illustrating an example of using the second virtual surface. The second virtual surface is a virtual surface used for controlling the movement of the dog when the dog operation mode is the attention mode. The attention mode is an operation mode of the dog when the dog is slightly interested in the player, for example. In this attention mode, the movement of the dog (particularly the head) Is controlled). When the dog is not interested in the player at all, even if the player touches the touch panel 15, the dog is ignored (normal mode), and when the dog is very interested in the player, It becomes licking (Licking mode described later). It is assumed that the degree of interest of the dog with respect to the player changes at any time according to various conditions, and the operation mode of the dog is updated at any time according to the change.

In the attention mode, the player holds the stick 16 on the touch panel 15 as shown in FIG.
When contact is made with a desired position above, a point (control point) on the second virtual plane corresponding to the contact position (instruction point) is set as a point of interest of the dog. Note that each point on the touch panel 15 is associated with each point on the second virtual surface on a one-to-one basis, which is the same as the first virtual surface. The same applies to the surface. As a result of setting the control point on the second virtual plane as the attention point of the dog, the movement of the dog is controlled as if the dog is paying attention to the control point. When the player slides the stick 16 on the touch panel 15, the dog operates so as to follow the contact position with the eyes.

  Note that the coordinate conversion from the instruction point to the control point may be performed using mapping data prepared in advance, or may be performed by calculation using a matrix. Furthermore, as shown in FIG. 12, after obtaining a point on the first virtual plane corresponding to the designated point once in the manner described with reference to FIG. 10, this point (hereinafter referred to as a basic control point) A straight line connecting the position of the virtual camera may be obtained, and an intersection between the straight line and the second virtual surface (this intersection becomes a control point on the second virtual surface) may be obtained by calculation. The same applies to the case where the indication points are converted into control points on the third virtual plane and the fourth virtual plane. According to such a conversion method, the conversion process from the basic control point to the control point on each virtual surface of the second to fourth virtual surfaces can be realized by a very simple calculation. By incorporating the process of converting the point into the basic control point into the main routine of the game program 41, it is already obtained when it becomes necessary to obtain the control point on each virtual surface of the second to fourth virtual surfaces. The control points can be easily obtained by using the basic control points, and the structure of the game program 41 can be simplified. Note that the basic control point is not necessarily set on the first virtual plane, and may be set on a virtual plane different from the first virtual plane. In that case, the control point on the first virtual plane can be easily obtained using the basic control point.

  FIG. 13 is a diagram illustrating a usage example of the third virtual surface. The third virtual surface is a virtual surface used for controlling the movement of the dog when the dog operation mode is the licking mode. The attention mode is, for example, a dog operation mode when the dog is greatly interested in the player. In this licking mode, the dog movement (especially the head) is used to lick the point touched by the player with the tongue. Is controlled). The reason why the position of the virtual plane in the attention mode is farther from the dog than in the licking mode is that the behavior of the dog displayed on the second LCD 12 does not feel strange. For example, if the position of the virtual surface in the attention mode is set to the same position as in the licking mode, the player seems to be facing a direction slightly shifted from the contact point and feels uncomfortable.

  FIG. 14 is a diagram illustrating an example of use of the fourth virtual surface. The fourth virtual surface is a virtual surface used for controlling the movement of the dog when the dog operation mode is the rope-turning mode. The rope rotation mode is a dog operation mode when the dog holds the end (back end) of the rope arranged in the virtual three-dimensional space by the player. In this rope rotation mode, 4. A control point on the virtual plane is set as a point of interest of the dog. On the other hand, the front end portion of the rope is arranged at a control point on the first virtual plane corresponding to the instruction point, as in FIG. Further, the coordinates of the central portion of the rope are updated at any time so as to follow the movement of the end portion, and move like an actual rope. As a result, when the player slides the stick 16 so as to draw a circle on the touch panel 15, the manual end of the rope displayed at the contact position and the back end of the rope are linked to the movement of the stick 16. It is possible to give the player a feeling that the head of the dog holding the head is moving and turning the rope together with the dog. The reason why the position of the fourth virtual plane is closer to the dog than the second virtual plane and the third virtual plane is to increase the movement of the back end of the rope. When the movement of the rear end of the rope becomes large, the central part of the rope becomes easy to move and the rope becomes easy to turn.

  FIG. 15 is a diagram illustrating a usage example of the fifth virtual surface. The fifth virtual plane is when the player places a towel on the first virtual plane of the virtual three-dimensional space as shown in FIG. 10 and then the dog holds the end of the towel (that is, in the biting mode). It is a virtual surface used. The fifth virtual surface is also used when the player calls the mode selection screen by operating the operation switch unit 14 and selects the turn mode on the mode selection screen. In the biting mode, the indication point is converted into a control point on the fifth virtual plane, and the front end portion of the towel is arranged at this control point. Since the back end of the towel is bitten by the dog, the towel moves when the player slides the stick 16 on the touch panel 15, and the dog moves as if dragged by the towel. In the turn mode, the indication point is converted into a control point on the fifth virtual plane and set as a point of interest of the control point dog so that the dog turns its face and body in the direction of the point of interest. Move controlled. Therefore, when the player slides the stick 16 so as to draw a circle on the touch panel 15, the dog rotates (that is, turns) following the contact position.

  Hereinafter, the processing flow of the CPU core 21 according to the game program 41 will be described with reference to the flowcharts of FIGS.

  In FIG. 16, when the game is started, first, in step S10, the CPU core 21 arranges a virtual camera and an object (dog, ground) at their initial positions in the virtual three-dimensional space.

  In step S12, it is determined whether or not the ball is used by the player (that is, the state shown in FIG. 10). If the ball is used, the process proceeds to step S14. If the ball is not used, step S20 is performed. Proceed to In the flowcharts of FIGS. 16 to 20, processes such as the player calling an item selection screen to select an item or calling a mode selection screen to select a rotation mode are omitted.

  In step S14, an instruction point is detected based on the output signal of the touch panel 15, and is stored in the RAM 24 as the instruction point coordinates of FIG.

  In step S16, the indication point detected in step S14 is converted into a control point on the first virtual plane by the method described above.

  In step S18, the ball is placed at the control point on the first virtual plane obtained in step S16. More specifically, the control point obtained in step S16 is stored in the RAM 24 as the arrangement coordinate 53 in FIG. The arrangement coordinates 53 are referred to when a game image is generated in step S72 of FIG. 18 described later. As a result, the ball is displayed on the second LCD 12 as shown in FIG.

  In step S20, it is determined whether or not the rope is used by the player. If the rope is used, the process proceeds to step S22. If the rope is not used, the process proceeds to step S34 in FIG.

  Steps S22 and S24 are the same processes as steps S14 and S16, respectively.

  In step S26, the front end portion of the rope is arranged at the control point on the first virtual plane obtained in step S24. More specifically, the control point obtained in step S24 is stored in the RAM 24 as the front end coordinate 54 of the rope. The near end coordinates 54 are used when a game image is generated in step S72 of FIG.

  In step S28, with reference to the operation mode 51 of the dog information 42 in the RAM 24, it is determined whether or not the dog operation mode is the rope turning mode. If it is the rope turning mode, the process proceeds to step S30. Then, the process proceeds to step S34 in FIG.

  In step S30, the indication point detected in step S22 is converted into a control point on the fourth virtual plane by the method described above.

  In step S32, the control point on the fourth virtual plane obtained in step S30 is set as the point of interest of the dog. More specifically, the control points obtained in step S30 are stored in the RAM 24 as the dog attention point coordinates 52. The attention point coordinates 52 are used when the dog movement is automatically controlled in step S66 of FIG.

  In step S34 of FIG. 17, it is determined whether or not the towel is used by the player. If the towel is used, the process proceeds to step S36, and if the towel is not used, the process proceeds to step S46.

  In step S36, it is determined whether or not the back end of the towel is bitten by the dog (that is, biting mode). If not, the process proceeds to step S38. Proceed to S44.

  Steps S38 and S40 are the same processes as steps S14 and S16, respectively.

  In step S42, the front end portion of the towel is placed at the control point on the first virtual surface obtained in step S40. More specifically, the control point obtained in step S40 is stored in the RAM 24 as the front end coordinate 55 of the towel. The front end coordinates 55 are used when a game image is generated in step S72 of FIG.

  In step S44, the biting mode process is executed. Detailed processing of the biting mode processing will be described later.

  In step S46, the operation mode 51 of the dog information 42 in the RAM 24 is referred to determine whether or not the dog operation mode is the attention mode. If it is the attention mode, the process proceeds to step S48. Proceed to step S54 of FIG.

  Step S48 is the same process as step S14 described above.

  In step S50, the instruction point detected in step S48 is converted into a control point on the second virtual surface by the method described above. However, when the player is not touching the touch panel 15 (that is, when the instruction point is not detected in step S48), the processing in step S50 and the next step S52 is omitted.

  In step S52, the control point on the second virtual plane obtained in step S50 is set as the point of interest of the dog.

  In step S54 of FIG. 18, it is determined whether or not the dog operation mode is the licking mode by referring to the operation mode 51 of the dog information 42 in the RAM 24. If the dog operation mode is the licking mode, the process proceeds to step S56. Then, the process proceeds to step S62.

  Step S56 is the same process as step S14 described above.

  In step S58, the instruction point detected in step S56 is converted into a control point on the third virtual plane by the method described above. However, when the player is not touching the touch panel 15 (that is, when the instruction point is not detected in step S56), the processing in step S58 and the next step S60 is skipped.

  In step S60, the control point on the third virtual plane obtained in step S58 is set as the point of interest of the dog.

  In step S62, it is determined whether or not the turn mode has been selected by the player. If the turn mode has been selected, the process proceeds to step S64, and if the turn mode has not been selected, the process proceeds to step S66.

  In step S64, a turning mode process is executed. Detailed processing of the turn mode processing will be described later.

  In step S66, the movement of the dog is automatically controlled based on a predetermined automatic control algorithm with reference to the point-of-interest coordinates 52 of the dog information 42 in the RAM 24 as appropriate. More specifically, the arrangement coordinates of the dog and the coordinates of each part of the dog are updated.

  In step S68, the operation mode of the dog is changed as necessary according to the result of the automatic control in step S66, and the operation mode 51 of the dog information 42 in the RAM 24 is updated.

  In step S70, the movement of the rope or towel is controlled with reference to the front end coordinate 54 of the rope or the front end coordinate 55 of the towel in the item information 43 of the RAM 24 (that is, the arrangement coordinates of the hook or towel and the coordinates of each part are controlled). calculate. When the dog operation mode is the rope turning mode or the biting mode, the shape of the rope or towel is controlled depending on the movement of the dog controlled in step S66. When neither a rope nor a towel is used, the process at step S70 is skipped.

  In step S72, based on the processing results of steps S66 and S70 and the camera setting information 44 of the RAM 24, a game image showing the state of the virtual three-dimensional space viewed from the virtual camera is generated and a frame buffer (not shown). And return to step S12. The game image generated in this way is output to the second LCD 12 at an appropriate timing.

  Next, with reference to FIG. 19, the details of the biting mode when the dog holds the back end of the towel used by the player will be described.

  In the biting mode, first, in step S74, the CPU core 21 moves the virtual camera to a position where the dog is looked down from above as shown in FIG. Specifically, this is performed by changing the camera setting information 44 in the RAM 24.

  Step S76 is the same process as step S14 described above.

  In step S78, the indication point detected in step S76 is converted into a control point on the fifth virtual plane by the method described above.

In step S80, the front end portion of the towel is arranged at the control point on the fifth virtual surface obtained in step S78. More specifically, the control point obtained in step S78 is stored in the RAM 24 as the front edge coordinate 55 of the towel.

  Steps S82 to S88 are substantially the same as steps S66 to S72 described above.

  In step S90, it is determined whether or not the biting mode has ended. The timing at which the biting mode is ended is, for example, when the player releases the stick 16 from the touch panel 15 so that the front end of the towel can move freely away from the fifth virtual surface, or when the dog releases the towel. When If the biting mode has not ended, the process returns to step S76, and if the biting mode has ended, the process proceeds to step S92.

  In step S92, the camera setting information 44 changed in step S74 is returned to the original position, so that the position of the virtual camera is returned to the original position, and the biting mode process is ended.

  Next, the details of the turning mode will be described with reference to FIG.

  Steps S94 to S98 are the same as steps S74 to S78 described above.

  In step S100, the control point on the fifth virtual plane obtained in step S98 is set as the point of interest of the dog.

  Steps S102 and S104 are the same as steps S66 and S72, respectively.

  In step S106, it is determined whether or not the turning mode has ended. The timing when the rotation mode ends is, for example, when the player calls the mode selection screen by operating the operation switch unit 14 and instructs the end of the rotation mode on the mode selection screen. If the turning mode has not ended, the process returns to step S96. If the turning mode has ended, the process proceeds to step S108.

  In step S108, the camera setting information 44 changed in step S94 is returned to the original position, so that the position of the virtual camera is returned to the original position, and the turning mode process is ended.

  As described above, according to the present embodiment, the instruction point on the display screen instructed by the player with the pointing device is not always assigned to the control point on the certain virtual plane, but is used for the control point. In response, for example, when the dog wants to run a rope, the instruction point is converted to a control point on the fourth virtual surface, so that it is converted to a control point on a different virtual surface depending on the situation. The player can easily and appropriately control the movement of the object without bothering to specify the position in the depth direction.

  Further, as shown in FIG. 14, a common instruction point can be converted into at least two control points, and a plurality of objects can be operated simultaneously in synchronization using these two control points.

As another embodiment, an example in which a common instruction point is converted into at least two control points, but these two control points are not necessarily displayed at the same position as the instruction point on the display screen. 21. In the example of FIG. 21, a predetermined input area is set on the touch panel 15, and two virtual planes A and B each having a one-to-one mapping relationship with the input area are included in the virtual three-dimensional space. Has been placed. The virtual plane A is a virtual plane in which a control point for controlling the movement of the dog A is set, and the virtual plane B is a virtual plane in which a control point for controlling the movement of the dog B is set. is there. Specifically, the control point on the virtual plane A is used as the point of interest of the dog A, and the control point on the virtual plane B is used as the point of interest of the dog B. Dog A and dog B have one end and the other end of one rope, respectively. When the player slides the stick 16 within a predetermined input area on the touch panel 15, the dog A and the dog B move in accordance with the movement of the stick 16. Dog A and Dog B can swing their heads and turn the rope well. In this example, at least two control points converted from the indication point are not necessarily displayed at the same position as the indication point on the display screen, but in this way, the common indication point is at least two control points. By converting to points and using these two control points to control objects in the virtual three-dimensional space, the player can easily perform complex operations. In the example of FIG. 21, a partial area of the touch panel 15 is used as the input area. However, as a matter of course, the entire area of the touch panel 15 may be used as the input area as in the above-described embodiment.

1 is an external view of a game device according to an embodiment of the present invention. The block diagram which shows the internal structure of the game device which concerns on one Embodiment of this invention. Memory map of RAM24 The figure which shows the detail of the dog information 42 memorize | stored in RAM24 The figure which shows the detail of the item information 43 memorize | stored in RAM24 Example of virtual camera and object placement in virtual 3D space Example of game screen displayed on second LCD 12 The figure which shows the detail of the virtual surface information 46 memorize | stored in RAM24 An example of the arrangement of each virtual plane in a virtual three-dimensional space The figure which shows the usage example of a 1st virtual surface The figure which shows the usage example of a 2nd virtual surface The figure which shows an example of the conversion method which converts an instruction | indication point into the point for control The figure which shows the usage example of a 3rd virtual surface The figure which shows the usage example of a 4th virtual surface The figure which shows the usage example of a 5th virtual surface Part of a flowchart showing the operation of the game device Another part of the flowchart showing the operation of the game device Still another part of the flowchart showing the operation of the game device Flow chart showing details of biting mode processing Flowchart showing details of rotation mode processing The figure which shows other embodiment of this invention

Explanation of symbols

10 Game device 11 First LCD
12 Second LCD
13 Housing 13a Upper housing 13b Lower housing 14 Operation switch 14a Cross switch 14b Start switch 14c Select switch 14d A button 14e B button 14f X button 14g Y button 14L L button 14R R button 15 Touch panel 16 Stick 17 Memory card 17a ROM
17b RAM
18a, 18b Sound release hole 19 Power switch

Claims (4)

On the computer,
A first display step of displaying an image when the first object arranged in the virtual three-dimensional space is viewed from the virtual camera on the display screen;
A detection step of detecting an indication point represented by two-dimensional coordinates based on an output signal from the pointing device;
A virtual surface setting step of setting a predetermined virtual surface between the virtual camera and the first object;
A conversion step of converting the indication point detected in the detection step into a control point represented by an arbitrary three-dimensional coordinate on the virtual surface set in the virtual surface setting step by a predetermined calculation process;
A second display step of displaying a second object different from the first object at a position indicated by the control point in the virtual three-dimensional space;
Based on the control point obtained by the conversion in the conversion step, a first control step for controlling the movement of the first object, and according to the movement of the first object controlled in the first control step An information processing program for executing a second control step for controlling the movement of the second object.   The information processing program according to claim 1, wherein the first control step controls movement of a part of the first object.   The information processing program according to claim 2, wherein the first control step controls a movement of a part of the first object so that a direction of the part of the first object changes. Table 1 示手 stage for displaying an image when viewed first object placed in a virtual three-dimensional space from a virtual camera on a display screen,
A pointing device for the operator to indicate any point on the display screen,
Detecting means for detecting an indication point represented by two-dimensional coordinates based on an output signal from the pointing device;
Virtual surface setting means for setting a predetermined virtual surface between the virtual camera and the first object;
Conversion means for converting the indicated point detected by the detection means into a control point represented by arbitrary three-dimensional coordinates on the virtual plane set by the virtual plane setting means by a predetermined calculation process;
Second display means for displaying a second object different from the first object at a position indicated by the control point in the virtual three-dimensional space;
Based on the control point obtained by the conversion by the conversion means, a first control means for controlling the movement of the first object, and according to the movement of the first object controlled by the first control means An information processing apparatus comprising second control means for controlling the movement of the second object.

Images