JP2008259880A - Game program and game device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game program and a game device for expressing character actions with rich variations according to simple pointing device operation. <P>SOLUTION: This game program performs predetermined operation between the other object and a player object, when indicating the other object arranged in a first determining area by the pointing device operation of a player. While, when indicating the other object arranged outside the first determining area by the operation of the player, a position of a player object is updated based on an indication position. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a game program and a game apparatus, and more specifically, a game program and a game for determining processing using coordinate information output from a pointing device such as a touch panel that outputs coordinate information of a predetermined coordinate system. Relates to the device.

Conventionally, game devices that allow a player to enjoy a game by operating a character (player character) displayed on a game screen have been widely used. For example, there is a game apparatus in which a pointing device such as a touch panel is provided on a display screen to operate a player character. A player operates a player character appearing in a game image while performing a touch operation on the touch panel in a timely manner (see, for example, Patent Document 1). In the game disclosed in Patent Document 1, as described in paragraphs 76 to 85, the player switches between the attack mode and the movement mode, and from the character position to the touch position in each mode. And determining whether or not there is an attack action and whether or not there is movement.
JP 2002-939 A

  However, in the operation using the pointing device, it is required that the game progress can be performed with a simpler operation. For example, in the game disclosed in Patent Document 1, when a player tries to perform an operation only with a pointing device, it is necessary to frequently perform mode switching or the like, and it takes time and effort even when the character is simply operated. In addition, when a keyboard is used in combination, it becomes necessary for the player to learn the contents of the operation corresponding to the key to be pressed and the contents of the command, and some skill is required to get used to the operation method. For this reason, the operation required for the player becomes complicated, and it is desired to advance the game by a simpler method.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a game program and a game apparatus that express a variety of character actions according to simple pointing device operations.

  In order to achieve the above object, the present invention employs the following configuration. Reference numerals in parentheses, step numbers (steps are abbreviated as S, and only step numbers are described), and the like indicate correspondence with embodiments described later in order to help understanding of the present invention. The scope of the present invention is not limited at all.

  The first invention displays on the display screen (12) a game image representing at least a part of a virtual space in which a player object (PC) and at least one other object (OBJ, NPC) are present, and It is a game program executed by the computer (21) of the game apparatus (1) operated by the pointing device (15) that outputs the input coordinates (DC1) in the coordinate system on the display screen according to the operation. The game program includes a virtual arrangement coordinate storage step (DO, S50), a first determination area setting step (S93, S104), a detection step (S51), an instruction object detection step (S57 to S59), and a first action processing step (S95). , S107, S109, S111), the player object position update step (S99, S112), and the display control step (S65) are executed by the computer. In the virtual arrangement coordinate storage step, virtual arrangement coordinates (DO position coordinates) respectively indicating the positions of the player object and other objects in the virtual space are stored in the memory (24). The first determination area setting step sets a first determination area (A1, A3) based on the position of the player object in the virtual space based on the virtual arrangement coordinates (Xpc, Ypc, Zpc) of the player object. In the detection step, input coordinates output from the pointing device are detected. In the instruction object detection step, when the input coordinates on the display screen overlap with a player object or another object arranged in the virtual space, the object is detected as an instruction object instructed by the player (FIG. 5). When the first action processing step determines that the instruction object is another object included in the first determination area based on the virtual arrangement coordinates of the instruction object (Yes in S94, Yes in S105), the instruction A predetermined action is executed between the object and the player object. When the player object position updating step determines that the instruction object is not included in the first determination area based on the virtual arrangement coordinates of the instruction object (No in S94, No in S105), the input coordinates on the display screen The virtual arrangement coordinates of the player object stored in the memory are updated so that the player object moves in the direction of the point (TG) in the virtual space overlapping with the player. The display control step displays the player object and other objects on the display screen based on each virtual arrangement coordinate stored in the memory. The pointing device is an input device that specifies an input position and coordinates on the screen, and is realized by, for example, a touch panel, a mouse, a track pad, a track ball, and the like. A coordinate system used in each input device is a touch panel coordinate system or a screen coordinate system.

  According to a second aspect of the present invention, a game image representing at least a part of a virtual space in which a player object and at least one other object are present is displayed on a display screen, and in a coordinate system on the display screen according to a player's operation. A game program executed on a computer of a game device operated by a pointing device that outputs input coordinates. The game program stores a virtual arrangement coordinate storage step, a first determination area setting step, a virtual input coordinate calculation step (S60), a pointing object detection step, a first action processing step, a player object position update step, and a display control step. Let it run. In the virtual arrangement coordinate storage step, virtual arrangement coordinates indicating the positions of the player object and other objects in the virtual space are stored in the memory. The first determination area setting step sets a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object. The virtual input coordinate calculation step calculates a virtual input coordinate (DC2) in a virtual space overlapping the input coordinate on the display screen when the input coordinate is output. In the pointing object detection step, when the virtual input coordinates calculated in the virtual input coordinate calculation step overlap with the player object or other objects arranged in the virtual space, the object is detected as the pointing object specified by the player. When the first action processing step determines that the instruction object is another object included in the first determination area based on the virtual arrangement coordinates of the instruction object, the first action processing step is performed between the instruction object and the player object. Execute the operation. In the player object position update step, when it is determined that the instruction object is not included in the first determination area based on the virtual placement coordinates of the instruction object, the player object moves in the direction based on the virtual input coordinates. The virtual arrangement coordinates of the player object stored in the memory are updated based on the virtual input coordinates. The display control step displays the player object and other objects on the display screen based on each virtual arrangement coordinate stored in the memory.

  In a third aspect based on the second aspect, in the virtual input coordinate calculation step, when the input coordinates on the display screen overlap with a game field (FD) arranged in the virtual space, the virtual input coordinates are displayed on the game field. The step of calculating is included.

  In a fourth aspect based on the first aspect or the second aspect, the first action processing step is performed according to a combination of the item possessed by the player object and the type of the other object. This includes a step of determining an action to be performed with the object (S91, S101 to S106, FIG. 10).

  In a fifth aspect based on the first or second aspect, when the player object position update step does not detect the pointing object in the pointing object detection step (No in S105), the memory is based on the input coordinates or the virtual input coordinates. The player object position data stored in is updated (S112).

  In a sixth aspect based on the first or second aspect, the first determination area setting step changes the size of the first determination area (A3) according to the item possessed by the player object. Includes steps.

  In a seventh aspect based on the first or second aspect, the first determination area is a range of predetermined left and right angles (θ1, θ3) with respect to the front of the player object based on the virtual arrangement coordinates of the player object. Is set in the virtual space.

  In an eighth aspect based on the first or second aspect, the game program causes the computer to further execute a second determination area setting step (S96) and a second action processing step (S98). The second determination area setting step sets a second determination area (A2) different from the first determination area in the virtual space with reference to the position of the player object. In the second action processing step, the indication object detected in the indication object detection step is arranged outside the first determination area and in the second determination area based on the virtual arrangement coordinates of the instruction object (Yes in S97). When the object is an object (NPC), another action different from the action performed by the first action processing step is performed between the specific object and the player object.

  In a ninth aspect based on the first or second aspect, the game program causes the computer to further execute a player action processing step (S102). In the player action processing step, when the instruction object detected in the instruction object detection step is a player object (Yes in S101), other objects arranged in the first determination area based on the virtual arrangement coordinates of other objects And a predetermined action between the player object and the player object.

  In a tenth aspect of the present invention, a game image representing at least a part of a virtual space in which a player object and at least one other object are present is displayed on a display screen, and in a coordinate system on the display screen according to a player's operation. The game device is operated by a pointing device that outputs input coordinates. The game apparatus includes storage means (24), virtual arrangement coordinate storage control means, first determination area setting means, detection means, pointing object detection means, first action processing means, player object position update means, and display control means. ing. The virtual arrangement coordinate storage control means stores virtual arrangement coordinates indicating the positions of the player object and other objects in the virtual space, respectively. The first determination area setting means sets a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object. The detecting means detects input coordinates output from the pointing device. When the input coordinates on the display screen overlap with the player object or other objects arranged in the virtual space, the pointing object detection means detects the object as the pointing object specified by the player. When the first action processing means determines that the instruction object is another object included in the first determination area based on the virtual arrangement coordinates of the instruction object, the first action processing means determines a predetermined value between the instruction object and the player object. Execute the operation. When the player object position updating means determines that the pointing object is not included in the first determination area based on the virtual placement coordinates of the pointing object, the player object position updating means moves to the direction of the point in the virtual space overlapping the input coordinates on the display screen. The virtual arrangement coordinates of the player object stored in the storage means are updated so that the player object moves. The display control means displays the player object and other objects on the display screen based on each virtual arrangement coordinate stored in the storage means.

  In an eleventh aspect of the present invention, a game image representing at least a part of a virtual space in which a player object and at least one other object are present is displayed on a display screen, and in a coordinate system on the display screen according to a player's operation. The game device is operated by a pointing device that outputs input coordinates. The game apparatus includes storage means, virtual arrangement coordinate storage control means, first determination area setting means, virtual input coordinate calculation means, pointing object detection means, first action processing means, player object position update means, and display control means. ing. The virtual arrangement coordinate storage control means stores virtual arrangement coordinates indicating the positions of the player object and other objects in the virtual space, respectively. The first determination area setting means sets a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object. The virtual input coordinate calculation means calculates a virtual input coordinate in a virtual space overlapping the input coordinate on the display screen when the input coordinate is output. When the virtual input coordinate calculated by the virtual input coordinate calculation unit overlaps with the player object or other object arranged in the virtual space, the pointing object detection unit detects the object as the pointing object specified by the player. When the first action processing means determines that the instruction object is another object included in the first determination area based on the virtual arrangement coordinates of the instruction object, the first action processing means determines a predetermined value between the instruction object and the player object. Execute the operation. When the player object position updating unit determines that the instruction object is not included in the first determination area based on the virtual placement coordinates of the instruction object, the player object position update unit moves the player object in a direction based on the virtual input coordinates. The virtual arrangement coordinates of the player object stored in the storage means are updated based on the virtual input coordinates. The display control means displays the player object and other objects on the display screen based on each virtual arrangement coordinate stored in the storage means.

  According to the first and second aspects of the invention, the first determination area is set based on the player object, and different actions are expressed depending on the relationship between the position instructed by the player and the first determination area. Specifically, when the instructed target is another object in the first determination area, the player object performs a predetermined action on the object. On the other hand, when the instructed target is outside the first determination area, the player object performs an action of moving based on the instructed position. Therefore, even with the same simple player's operation, it is possible to express a variety of character actions.

  According to the third aspect, the player can instruct an action to move the player object based on the position on the game field that has been instructed to operate.

  According to the fourth aspect of the present invention, an action is determined by a combination of an item equipped with a player object and the type of the target object, and the action can be changed according to the combination. Therefore, even with the same simple operation, it is possible to express a character action that is changed according to the type of item and object.

  According to the fifth aspect, since an action corresponding to the operation is performed even if the player does not specify the object, it is possible to avoid a player operation in which the player object does not react.

  According to the sixth aspect, the size of the first determination area is changed according to the item possessed by the player object. For example, the first determination area includes the first determination area according to the set characteristic of the item. The size can be changed. That is, a small first determination area is set for an item used for a relatively close object, and a large first determination area is set for an item used for a relatively distant object. Can be set. Therefore, it is possible to express a more realistic action by setting the first determination region with reality according to the item characteristics expressed in the virtual space.

  According to the seventh aspect, since the first determination region is set in the front direction of the player object, the action can be changed depending on the back and front of the player object, and the reality can be changed according to the direction of the player object. It is possible to express a certain action.

  According to the eighth aspect of the present invention, it is possible to express a variety of character actions even if the player object is the same operation on the same specific object (for example, non-player character). Specifically, different actions can be expressed according to the distance between the player object and the specific object.

  According to the ninth aspect, when a player object is instructed by an operation of the player, a predetermined action is performed with another object arranged in the first determination area. Therefore, even with an operation that only indicates the player object, a variety of character actions can be expressed.

  Further, according to the game device of the present invention, the same effect as the above-described game program can be obtained.

  A game device that executes a game program according to an embodiment of the present invention will be described with reference to the drawings. The game program of the present invention can be applied by being executed by an arbitrary computer system that can be displayed on the display device. The game program executed by the game device 1 is an example of an information processing device (game device). It explains using. FIG. 1 is an external view of a game apparatus 1 that executes the game program of the present invention. Here, a portable game device is shown as an example of the game device 1.

  In FIG. 1, the game apparatus 1 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. The first LCD 11 and the second LCD 12 can use any resolution.

  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 has a cross switch 14a, a start switch 14b, a select switch 14c, an A button 14d, a B button 14e, an X button 14f, a Y button 14g, a power switch 14h, an L button 14L, and an R button as input devices. 14R is provided. 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 an insertion port for storing the memory card 17 and the stick 16.

  As the touch panel 15, an arbitrary type such as a resistive film type, an optical type (infrared type), and a capacitive coupling type can be used. The touch panel 15 is an example of a pointing device having 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 do not necessarily match.

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

  Next, the internal configuration of the game apparatus 1 will be described with reference to FIG. FIG. 2 is a block diagram showing the internal configuration of the game apparatus 1.

  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, The LCD controller 31 and the wireless communication unit 33 are 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 appropriately stores data for generating temporary data obtained by the CPU core 21 executing the program. 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 disposed inside the sound release holes 18a and 18b, respectively.

  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 display image based on data for generating a display image stored in the RAM 24, and draws the first display image in the first VRAM 28. Similarly, the second GPU 27 generates a second display 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.

  The wireless communication unit 33 has a function of exchanging data used for game processing and other data with the wireless communication unit 33 of other game devices. As an example, the wireless LAN standard of IEEE802.11. Provides wireless communication functions that comply with Then, the wireless communication unit 33 outputs the received data to the CPU core 21. Further, the wireless communication unit 33 transmits data instructed by the CPU core 21 to another game device. Note that the game device 1 is connected via the wireless communication unit 33 by mounting a protocol such as TCP / IP (Transmission Control Protocol / Internet Protocol) or a predetermined browser in the wireless communication unit 33 or the storage unit in the game device 1. This makes it possible to connect to a network such as the Internet. The game apparatus 1 can browse data such as documents and images published on the network on the first LCD 11 and the second LCD 12.

  Note that the game program of the present invention may be supplied not only to the computer system through an external storage medium such as the memory card 17 but also to the computer system through a wired or wireless communication line. The game program may be recorded in advance in a non-volatile storage device inside the computer system. The information storage medium for storing the game program is not limited to the non-volatile semiconductor memory, but may be a CD-ROM, a DVD, or an optical disk storage medium similar to them.

  Next, with reference to FIG. 3 to FIG. 11, before a specific processing operation by the game program executed in the game apparatus 1 is described, the processing operation is displayed on the first LCD 11 and the second LCD 12. Examples of display forms and processing examples will be described. FIG. 3 is a diagram showing a screen display example displayed on the first LCD 11 and the second LCD 12. FIG. 4 is a schematic perspective view for explaining the positional relationship between the touch panel 15 and the drum coordinate system for obtaining a game image displayed on the second LCD 12. FIG. 5 is a side view for explaining the positional relationship between the drum coordinate system and the touch panel 15. FIG. 6 is a schematic perspective view for explaining a plane coordinate system for performing game processing. FIG. 7 is a schematic perspective view for explaining the conversation range A1 set for the player character PC. FIG. 8 is a schematic perspective view for explaining the calling range A2 set for the player character PC. FIG. 9 is a schematic perspective view for explaining the action range A3 set for the player character PC. FIG. 10 is a diagram for explaining an example of the content of an action. FIG. 11 is a diagram for explaining the moving action of the player character PC.

  In FIG. 3, game images are displayed on the first LCD 11 and the second LCD 12 of the game apparatus 1, respectively. Since the game image according to the present invention is mainly displayed on the second LCD 12, hereinafter, the image displayed on the second LCD 12 is simply referred to as a game image.

  On the second LCD 12, in addition to the player character PC and the non-player character NPC, the object OBJ is arranged on the drum field FD set in the game space and expressed as a game image. In the example of the game image shown in FIG. 3, one player character PC and non-player character NPC and six objects OBJ1 to OBJ6 are displayed. The drum field FD is a cylindrical field in which a part of the cylindrical curved surface is displayed as a game image, and is installed so that the cylindrical axis is horizontal in the game space. The player character PC, the non-player character NPC, and the object OBJ are respectively arranged on the cylindrical curved surface of the drum field FD. For example, the player character PC is a character that can move along the cylindrical curved surface of the drum field FD in the game space. In addition, a background BI (for example, sky) is displayed behind the drum field FD. In the example shown in FIG. 3, a game image obtained by perspective projection from a virtual camera with a cylindrical curved surface as a gazing point from the side of the drum field FD and a part of the cylindrical curved surface as a drawing range is shown.

  In FIG. 4, the state of the virtual three-dimensional game space in which the virtual camera C and the touch panel 15 for obtaining the game image are arranged is displayed. In the drum coordinate system, a drum field FD, a background BI, and a virtual wall W are set in the game space. As an example, the virtual wall W is a virtual transmission plane set parallel to the cylindrical axis of the drum field FD. The virtual camera C is disposed on the side of the cylindrical curved surface of the drum field FD. Then, a game space set to a visual volume sandwiched between predetermined clip planes with the camera position of the virtual camera C as a reference is displayed on the second LCD 12 as a game image. In the example shown in FIG. 4, an image IM1 obtained by perspectively projecting a part of the cylindrical curved surface of the drum field FD from the virtual camera C and a background BI drawn further rearward through a part of the virtual wall W behind the image IM1. A game image is composed of the image IM2 obtained by perspectively projecting the image. At this time, a drawing model of each object is arranged on the drum field FD based on a position obtained by converting position coordinates described later into a drum coordinate system (player character PC and object OBJ in FIG. 4), and the drawing included in the view volume. The model is also displayed on the second LCD 12. Then, the touch panel coordinate system is set such that the touch panel 15 is arranged on the front side (virtual camera C side) clip surface, and the input coordinates from the touch panel 15 are projected in perspective in the game space along the visual line direction of the virtual camera C. Is done.

  FIG. 5 shows a state in which touch input coordinates where the player touches the touch panel 15 are projected in the game space. In this embodiment, a simple model is used to determine a target object touched by the player. Here, the simple model is a model obtained by simplifying a drawing model for obtaining a game image, and is defined by a simple solid type and its size. A simple model of each object is arranged on the drum field FD based on a position obtained by converting position coordinates described later into a drum coordinate system. For example, in the example of FIG. 5, the player character PC is arranged at a position on the drum field FD obtained by converting the position coordinates as a simple model PCe in which a sphere is placed on the top of a cylinder. The object OBJ is arranged at a position on the drum field FD obtained by converting the position coordinates as a simple model OBJe in which a triangular pyramid is placed on the upper part of a cylinder.

  For example, when the player touches the touch panel 15 at the position of the stick 16a, touch input coordinates obtained by the touch operation are perspectively projected into the game space along the line-of-sight direction extending radially from the virtual camera C (see FIG. In FIG. 5, it is assumed that (indicated by a broken line) intersects or contacts the simplified model PCe. At this time, it is determined that the player character PC corresponding to the simple model PCe has been touched by the player. Further, the intersection point TPDa where the straight line passes through the simple model PCe and intersects the drum field FD is determined to be a point on the drum coordinate system field touched by the player.

  Further, when the player touches the touch panel 15 at the position of the stick 16b, a straight line obtained by perspectively projecting the touch input coordinates obtained by the touch operation in the game space along the line of sight of the virtual camera C intersects the simple model OBJe. Or contact. At this time, it is determined that the object OBJ corresponding to the simple model OBJe has been touched by the player. Further, the intersection point TPDb where the straight line passes through the simple model OBJe and intersects the drum field FD is determined to be a point on the drum coordinate system field touched by the player.

  Further, when the player touches the touch panel 15 at the position of the stick 16c, a straight line obtained by perspectively projecting touch input coordinates obtained by the touch operation in the game space along the line-of-sight direction of the virtual camera C directly corresponds to the drum field FD. Suppose you cross. At this time, it is determined that the intersection point TPDc where the straight line intersects the drum field FD is a point on the drum coordinate system field touched by the player. In this case, it is determined that there is no character or object touched by the player.

  When the player touches the touch panel 15 at the position of the stick 16d (that is, touches the game image on which the background is displayed), the touch input coordinates obtained by the touch operation are played along the line of sight of the virtual camera C. It is assumed that the straight line projected in space intersects the virtual wall W directly. At this time, it is determined that the intersection point TPDd where the straight line intersects the virtual wall W is a point on the drum coordinate system field touched by the player. In this case also, it is determined that there is no character or object touched by the player.

  In FIG. 6, the game apparatus 1 converts the drum coordinate system into a plane coordinate system and performs these processes when performing character movement and action movement. Then, after performing the above processing in the plane coordinate system, each position coordinate is converted again into the drum coordinate system and a drawing model is arranged in the drum field FD to generate a game image displayed on the second LCD 12 ( (See FIG. 4).

  For example, the cylindrical axis direction of the drum field FD is converted into the X axis direction in the plane coordinate system. Further, the circumferential direction of the cylindrical curved surface of the drum field FD is converted into the Z-axis direction in the plane coordinate system. Further, the radial direction perpendicular to the cylindrical axis away from the cylindrical curved surface of the drum field FD is converted into the Y-axis direction in the plane coordinate system. By these conversions, a plane field FP in which the cylindrical curved surface of the drum field FD is extended to the plane of Y = 0 is set in the plane coordinate system. In this embodiment, the coordinates in the cylindrical axis direction of the drum field FD are converted as they are into the X-axis coordinates in the plane coordinate system. Further, the circumferential coordinate of the drum field FD is set to the Z axis in the planar coordinate system so that the entire circumference or a part of the circumferential length of the cylindrical curved surface of the drum field FD becomes the length in the Z axis direction in the planar coordinate system. Convert to coordinates.

  As shown in FIG. 5, the virtual wall W is installed so as to cross the cylindrical curved surface so as to stand up from the cylindrical curved surface of the drum field FD in parallel with the touch panel 15 (clip surface). Accordingly, a straight line (Y = 0, Z = Zw (constant value)) obtained by converting the intersection line between the virtual wall W and the cylindrical curved surface into the planar coordinate system by the above coordinate conversion is defined as the intersection line with the plane field FP in the Y-axis direction. The plane of Z = Zw (constant value) standing up is set in the plane coordinate system as the plane field Wp corresponding to the virtual wall W. Then, the coordinates on the virtual wall W in the drum coordinate system are converted into coordinates on the plane field Wp. Specifically, the coordinates in the cylindrical axis direction along the virtual wall W are converted into the X-axis coordinates in the plane coordinate system. Further, the length from the line of intersection with the drum field FD in the direction perpendicular to the cylindrical axis along the virtual wall W is converted to the Y-axis coordinate in the plane coordinate system. Further, the coordinates on the virtual wall W are converted into the Z-axis coordinates Zw of the plane coordinate system.

  Here, as shown in FIG. 6, each object is arranged on the plane field FP according to object data (positional coordinates) described later. For example, in the example of FIG. 6, the player character PC is arranged on the plane field FP of the position coordinates PCP (Xpc, Ypc, Zpc), and the object OBJ is on the plane field FP of the position coordinates OBJP (Xobj, Jobj, Zobj). Has been placed. Further, the intersection point TPDa on the drum field FD touched by the player described above is converted to the intersection point TPPa by the coordinate conversion. The intersection point TPDb on the drum field FD touch-operated by the player described above is converted to the intersection point TPPb by the coordinate conversion. The intersection point TPDc on the drum field FD touch-operated by the player described above is converted to the intersection point TPPc by the coordinate conversion. Then, the intersection point TPDd on the virtual wall W touched by the player is converted into the intersection point TPPd on the plane field Wp by the coordinate conversion, and then Y = 0 (that is, the Y axis negative along the plane field Wp). Converted to a target point TG that is moved in the direction).

  In FIG. 7, a conversation range A1 is set for the player character PC. The conversation range A1 is set on the plane field FP in a fan shape up to a predetermined distance from the front of the player character PC by a predetermined angle to the left and right. For example, the conversation range A1 is set in a fan shape from the front of the player character PC to the distance L1 by left and right θ1. When an action target (non-player character NPC) exists in the conversation range A1, the player character PC performs an action (conversation action) to talk with the target (non-player character NPC).

  In FIG. 8, a calling range A2 is set for the player character PC. The calling range A2 is set on the plane field FP in a fan shape with a predetermined distance from the front of the player character PC by a predetermined angle to the left and right. For example, the calling range A2 is set in a fan shape from the front of the player character PC to the distance L2 (L1 <L2) by left and right θ2 (θ1 ≦ θ2). When an action target (non-player character NPC) exists in the calling range A2, the player character PC performs an action (calling action) to call the target (non-player character NPC).

  In FIG. 9, an action range A3 is set for the player character PC. The action range A3 is set on the plane field FP in a fan shape with a predetermined distance from the front of the player character PC by a predetermined angle to the left and right. For example, the action range A3 is set in a fan shape from the front of the player character PC to the distance L3 by left and right θ3. When there is an action target (object OBJ, non-player character NPC, plane field FP) within this action range A3, the player character PC is the target (object OBJ, non-player character NPC, plane field FP) or player character PC. Perform actions according to the equipment possessed by. The action range A3 is set in a fan shape in front of the player character PC, but the angle θ3 and the distance L3 may be changed according to the type and equipment of the target object.

  FIG. 10 shows an example of an action determined by a combination of the touch-operated target existing in the action range A3 and the equipment of the player character PC. Such an operation is realized by a branch of the program processing, but it may be processed using a table describing the operation for these combinations. For example, when the player character PC is equipped with a scoop and the touched target is the ground (planar field FP) existing in the action range A3, the player character PC uses the scoop to ground (planar field FP). ) Digging action. In addition, when the player character PC is equipped with an ax and the touched target is a tree (object OBJ) existing in the action range A3, the player character PC uses the ax to draw the tree (object OBJ). Perform the cutting operation. Furthermore, when the player character PC is equipped with a fishing rod and the touched target is a river (planar field FP) existing in the action range A3, the player character PC uses the fishing rod to create a river (planar field FP). ) Fishing towards. Thus, according to the combination of the equipment (item) of the player character PC and the touch-operated target existing in the action range A3, the target that performs a special action is described as the action target of the item. Further, when the touch-operated target is a post (object OBJ) existing in the action range A3, regardless of the equipment of the player character PC, the player character PC always performs an operation of opening the post (object OBJ). In this way, a common action is described as a normal action for a touch-operated target existing in the action range A3 regardless of the equipment of the player character PC, and a target for performing the normal action is described as a normal action target. . In the example of FIG. 10, it is described that the target existing in the action range A <b> 3 is touch-operated. However, even when the player character PC whose target exists in the action range A <b> 3 is touch-operated, depending on this combination The player character PC may perform a similar operation.

  Thus, although the action of the player character PC is determined according to the combination of the target and the equipment, it is preferable to change the size of the action range A3 according to the combination. For example, it is a natural action to set the distance L3 of the action range A3 that operates using a fishing rod longer than the target range that the player character PC operates using a scoop. As described above, the size of the action range A3 may be changed according to the characteristics of the equipment, the type of the object, the characteristics of the character, and the like.

  On the other hand, depending on the type and equipment of the target existing in the action range A3, there is a combination in which the player character PC does not perform a special action. For example, when the player character PC is equipped with a scoop, and the touch-operated target is a tree (object OBJ) existing in the action range A3, the player character PC performs a moving action. In addition, when the player character PC is equipped with an ax and the touched target is the ground or river (planar field FP) existing in the action range A3, the player character PC performs a moving operation. Furthermore, when the player character PC is equipped with a fishing rod and the touched target is the ground (planar field FP), trees and rocks (object OBJ) existing in the action range A3, the player character PC moves. Perform the action.

  In FIG. 11, when the touch-operated target is a combination that does not perform the special action or the normal action described above, the player character PC sets the intersection TPP (see FIG. 6) on the touch-operated plane field Wp as a target. The point TG moves at a predetermined speed toward the target point TG. Here, when the touch-operated target is the virtual wall W, as described above, the touch input coordinates are converted to the target point TG on the plane field FP, so that the player character PC faces the target point TG. Move.

  Next, with reference to FIGS. 12 to 18, a specific processing operation by the game program executed on the game apparatus 1 will be described. FIG. 12 is a flowchart showing the first half operation in which the game apparatus 1 performs a game process by executing the game program. FIG. 13 is a flowchart showing the latter half of the operation in which the game apparatus 1 performs a game process by executing the game program. FIG. 14 is a subroutine showing the detailed operation of the process of converting to the position coordinate of the drum coordinate system in step 54 in FIG. 12 and step 64 in FIG. FIG. 15 is a subroutine showing detailed operations for the process of converting the intersection coordinates of the drum coordinate system in step 61 in FIG. 13 into the plane coordinate system. FIG. 16 is a subroutine showing detailed operations in the first half of the action process of step 62 in FIG. FIG. 17 is a subroutine showing detailed operations in the latter half of the action process in step 62 in FIG. FIG. 18 is a diagram illustrating an example of various data stored in the RAM 24 by the processing operation based on FIGS. 12 and 13. The program for executing these processes is included in the game program stored in the ROM 17a, and is read from the ROM 17a to the RAM 24 when the power of the game apparatus 1 is turned on. 21 is executed.

  First, when a power source (not shown) of the game apparatus 1 is turned on, a boot program (not shown) is executed by the CPU core 21, whereby the game program stored in the memory card 17 is loaded into the RAM 24. The When the loaded game program is executed by the CPU core 21, the steps shown in FIGS. 12 and 13 (abbreviated as “S” in FIGS. 12 to 17) are executed.

  In FIG. 12, the CPU core 21 performs initial setting of the game (step 50), and advances the processing to the next step. For example, as the initial setting performed by the CPU core 21 in step 50, data related to an object that appears in the game space is set. As shown in FIG. 18, in the initial setting, the RAM 24 stores object data DO1 to DO5... Corresponding to each object as an object database for arranging each object in the game space. Each of the object data DO1 to DO5... Includes data indicating a character ID, a drawing model identification symbol, a simple model type and size, and position coordinates. The character ID is a number uniquely assigned to each object, and the type of the object (player character, non-player character, other object, etc.) can be distinguished by this number. The drawing model type symbol is a symbol indicating drawing model image data DI1 for each object arranged on the drum field FD when a game image is generated. The type and size of the simple model is a symbol that indicates, for each object, the type and size of the simple model data DI2 used to determine the target object touched by the player. The position coordinates are data indicating the position of each object arranged in the plane coordinate system by three-dimensional coordinates (X, Y, Z). Furthermore, drawing model image data DI1, simple model data DI2, background image data DI3, and the like are appropriately stored as image / model data for generating a game image and detecting a target of a touch operation. Here, the simple model data DI2 is an extremely simple three-dimensional model such as a cylinder, a sphere, or a cone as compared with the drawing model image data DI1, and is selected according to the type of the simple model included in the object data DO. Then, according to the size of the simple model included in the object data DO, the size of the three-dimensional model is changed and arranged.

  Returning to FIG. 12, the CPU core 21 waits for a touch input from the touch panel 15 in accordance with the user's operation (step 51). When there is a touch input (Yes in step 51), the CPU core 21 stores the coordinates of the touch panel coordinate system indicating the touch position where the touch panel 15 is currently touched in the RAM 24 as the touch input coordinates DC1 (step 52). The process proceeds to the next step.

  For example, as shown in FIG. 18, the coordinate data of the touch panel coordinate system input from the touch panel 15 is stored in the RAM 24 as the touch input coordinates DC1 when appropriate. Further, the RAM 24 appropriately stores the intersection coordinate DC2 as position data in the drum coordinate system corresponding to the touch input coordinate DC1, and the intersection coordinate DC3 as position data in the plane coordinate system corresponding to the intersection coordinate DC2.

  Returning to FIG. 12, the CPU core 21 obtains the position coordinates and simple model (type and size) of the plane coordinate system for each object arranged in the game space, based on the object data DO of the object database (step). 53). Then, the CPU core 21 converts each position coordinate acquired in step 53 from the plane coordinate system to the drum coordinate system (step 54), and advances the processing to the next step. Hereinafter, detailed processing in step 54 will be described with reference to FIG.

  In FIG. 14, the CPU core 21 calculates the ratio of the Z-axis coordinate of each position coordinate to a preset range that can be taken in the Z-axis direction in the plane coordinate system (step 71). Proceed to the next step. Here, the range that can be taken in the Z-axis direction is the length in the Z-axis direction of the plane field FP (see FIG. 6) obtained by extending all or part of the cylindrical curved surface of the drum field FD (see FIG. 5) to a plane. That is, the length of the plane coordinate system corresponding to the entire circumference or a part of the circumference of the cylindrical curved surface of the drum field FD.

  Next, the CPU core 21 calculates corresponding coordinates in the circumferential direction of the drum field FD based on the ratios calculated in step 71 (step 72), and advances the processing to the next step. For example, when the range that can be taken in the Z-axis direction indicates the entire circumference of the circumferential length of the cylindrical curved surface, assuming that the ratio is the ratio of the circumference length to the entire circumference, the circumference length relative to the ratio is calculate. Then, using the origin coordinate in the circumferential direction of the drum field FD as a reference, the position of the circumferential length is set as the corresponding coordinate in the circumferential direction of the drum field FD. In addition, when the range that can be taken in the Z-axis direction indicates a part of the circumferential length of the cylindrical curved surface, the ratio is the ratio of the circumferential length to the circumference of the part, and the ratio to the ratio Calculate the circumferential length. Then, using the origin coordinate in the circumferential direction of the drum field FD as a reference, the position of the circumferential length is set as the corresponding coordinate in the circumferential direction of the drum field FD.

  Next, the CPU core 21 calculates the corresponding coordinate in the axial direction of the drum field FD based on the X-axis coordinate of each position coordinate (step 73), and ends the processing by the subroutine. For example, using the origin coordinate in the axial direction of the drum field FD as a reference, the X-axis coordinate of each position coordinate is directly used as the corresponding coordinate in the axial direction of the drum field FD. Note that the X-axis coordinate of each position coordinate may be converted into the corresponding coordinate in the axial direction of the drum field FD based on a predetermined conversion formula. Through the processing of these steps 71 to 73, the position coordinates of each object in the plane coordinate system are converted into the drum coordinate system on the cylindrical curved surface of the drum field FD. In the processing of steps 71 to 73, an operation is performed to convert the position coordinates (that is, Y = 0) on the plane field FP into corresponding coordinates on the cylindrical curved surface of the drum field FD. However, in the case of position coordinates away from the plane field FP in the Y-axis direction (that is, Y> 0), the Y-axis coordinates are used as the corresponding coordinates in the radial direction perpendicular to the cylindrical axis away from the cylindrical curved surface of the drum field FD. Needless to say, the same coordinate transformation can be performed for points other than the points on the plane field FP.

  Returning to FIG. 12, the CPU core 21 arranges each simplified model in accordance with the corresponding coordinates of the drum coordinate system calculated in step 54 (step 55), and advances the processing to the next step. Specifically, the CPU core 21 generates a simple model based on the type and size of the simple model included in each object data DO, and the simple model is placed at the position of each corresponding coordinate in the game space of the drum coordinate system. A model is arranged (see FIG. 5). By this step 55, simple models corresponding to the player character PC, non-player character NPC, and other objects OBJ appearing in the game space are arranged in the game space of the drum coordinate system.

  Next, the CPU core 21 calculates a straight line extended by perspective projection into the game space of the drum coordinate system along the line-of-sight direction in which the touch input coordinates DC1 extend radially from the virtual camera C (step 56; FIG. 5). (See dashed line). Then, the CPU core 21 determines whether or not there is a simple model that contacts or intersects with the straight line calculated in step 56 (step 57). If there is a simple model that contacts or intersects with the straight line, the CPU core 21 proceeds to the next step 58. On the other hand, when there is no simple model that contacts or intersects with the straight line, the CPU core 21 proceeds to the next step 60 (FIG. 13).

  In step 58, the CPU core 21 stores, in the RAM 24, an object (character ID) corresponding to the foremost (virtual camera C side) simple model among the simple models determined to contact or intersect the straight line. Then, the CPU core 21 acquires the position coordinates in the plane coordinate system of the object (character ID) corresponding to the previous simple model from the object database (step 59), and proceeds to the next step 60 (FIG. 13). . Hereinafter, an object corresponding to the most recent simple model that contacts or intersects the straight line is referred to as a touch operation target object. For example, as shown in FIG. 5, when the touch panel 15 is touched at the position of the stick 16b, the character ID corresponding to the simple model OBJe that intersects the straight line calculated from the touch input coordinates DC1 and the position coordinates in the plane coordinate system. And the object corresponding to the simple model OBJe becomes the target object of the touch operation.

  In step 60, the CPU core 21 acquires the intersection coordinates between the straight line calculated in step 56 and the drum field FD or the virtual wall W, and stores them in the RAM 24 as the intersection coordinates DC2. For example, as shown in FIG. 5, when the touch panel 15 is touched at the positions of the sticks 16a to 16c, the intersection coordinates TPDa to TPDc at which the straight line calculated from the touch input coordinates DC1 and the drum field FD intersect are acquired. Is done. Also, as shown in FIG. 5, when the touch panel 15 is touched at the position of the stick 16d, the intersection coordinate TPDd where the straight line calculated from the touch input coordinate DC1 and the virtual wall W intersect is acquired. Then, the CPU core 21 converts the intersection coordinates acquired in step 60 to a plane coordinate system (step 61), and advances the processing to the next step. Hereinafter, the detailed processing in step 61 will be described with reference to FIG.

  In FIG. 15, the CPU core 21 determines whether or not the intersection coordinates obtained in step 60 are on the drum field FD (step 81). If the intersection coordinates are on the drum field FD, the CPU core 21 proceeds to the next step 82. On the other hand, if the intersection coordinates are on the virtual wall W, the CPU core 21 advances the processing to the next step 88.

  In step 82, the CPU core 21 calculates the X-axis coordinate of the planar coordinate system based on the corresponding coordinate in the axial direction of the drum field FD at the intersection coordinate. Next, the CPU core 21 acquires the corresponding coordinates in the circumferential direction of the drum field FD at the intersection coordinates (step 83), and advances the processing to the next step 84. The process at step 82 is a process for performing the inverse transformation at step 73. Therefore, for example, the corresponding coordinate in the axial direction of the drum field FD based on the origin coordinate in the axial direction of the drum field FD is directly used as the X-axis coordinate in the planar coordinate system. Further, the corresponding coordinate in the axial direction of the drum field FD may be converted into the X-axis coordinate in the plane coordinate system based on a predetermined conversion formula.

  On the other hand, in step 88, the CPU core 21 calculates the X-axis coordinate of the planar coordinate system based on the coordinate in the direction parallel to the cylindrical axis of the drum field FD at the intersection coordinate. Next, the CPU core 21 acquires the corresponding coordinates in the circumferential direction of the drum field FD at the intersection of the virtual wall W and the cylindrical curved surface of the drum field FD (step 89), and advances the processing to the next step 84. As described with reference to FIG. 5, the virtual wall W is installed so as to cross the cylindrical curved surface so as to stand upright from the cylindrical curved surface of the drum field FD in parallel with the touch panel 15 (clip surface). That is, in step 88, corresponding coordinates in the same direction as the axial direction of the drum field FD on the virtual wall W are calculated. In step 89, corresponding coordinates in the circumferential direction where the virtual wall W intersects the drum field FD are calculated.

  In step 84, the CPU core 21 determines a straight line from the cylindrical axis to the corresponding coordinate in the circumferential direction based on the corresponding coordinate in the circumferential direction of the drum field FD calculated in step 83 or 89 and the drum field from the cylindrical axis. The angle between the straight lines to the origin coordinate in the circumferential direction of the FD is calculated. Then, the CPU core 21 calculates the circumferential length corresponding to the angle based on the radius of the drum field FD and the angle calculated in step 84. The CPU core 21 calculates the circumference based on the ratio between the above-described range in the Z-axis direction and the entire circumference or a part of the circumference of the cylindrical curved surface of the drum field FD corresponding to the range. The length is converted into Z-axis coordinates (step 85), and the process proceeds to the next step. Here, the process of step 85 is a process for performing the inverse transformation of steps 71 and 72 described above.

  Next, the CPU core 21 sets the Y-axis coordinate of the plane coordinate system at the intersection coordinate to 0 (step 86). The CPU core 21 stores the X-axis coordinate calculated in step 82 or 88, the Z-axis coordinate calculated in step 85, and the Y-axis coordinate set in step 86 in the RAM 24 as the intersection coordinate DC3 of the plane coordinate system. (Step 87), the process by the subroutine is terminated. For example, the intersection point coordinates TPDa to TPDc shown in FIG. 5 are converted into the intersection point coordinates (target points) TPPa to TPPc shown in FIG. Further, the intersection point coordinate TPDd shown in FIG. 5 is converted into the target point TG shown in FIG.

  Returning to FIG. 13, the CPU core 21 performs an action process of the player character PC based on the target object of the touch operation and the intersection coordinate DC3 (step 62), and advances the process to the next step. Hereinafter, detailed processing in step 62 will be described with reference to FIGS. 16 and 17.

  In FIG. 16, the CPU core 21 determines whether or not the target object of the touch operation is a non-player character NPC (step 91). Then, the CPU core 21 proceeds to the next step 92 when the target object is a non-player character NPC, and proceeds to the next step 101 (FIG. 17) when it is not a non-player character NPC. Here, the CPU core 21 can determine the type of the target object from the character ID of the target object obtained in step 58 above.

  In step 92, the CPU core 21 acquires the position coordinates in the plane coordinate system of the non-player character NPC that is the target object of the touch operation. The position coordinates are the same as the position coordinates acquired in step 59 above. Then, the CPU core 21 refers to the object database, acquires the position coordinates and orientation of the player character PC, calculates the conversation range A1 of the player character PC (step 93; see FIG. 7), and performs the next step. Proceed to

  Next, the CPU core 21 determines whether or not the position coordinates of the non-player character NPC acquired in step 92 are within the conversation range A1 (step 94). If the position coordinates of the non-player character NPC are outside the conversation range A1, the CPU core 21 advances the process to the next step 96. On the other hand, when the position coordinates of the non-player character NPC are within the conversation range A1, the CPU core 21 performs an action process expressing a conversation between the player character PC and the non-player character NPC that is the target of the touch operation. (Step 95), the process by the subroutine is terminated. Here, the action in which the player character PC and the non-player character NPC have a conversation is an action process that expresses, on the game image, an action in which the player character PC and the non-player character NPC receive and answer each other words. .

  In step 96, the CPU core 21 calculates a calling range A2 for the player character PC based on the position coordinates and orientation of the player character PC (see FIG. 8). Next, the CPU core 21 determines whether or not the position coordinates of the non-player character NPC acquired in step 92 are within the calling range A2 (step 97). Then, when the position coordinates of the non-player character NPC are within the calling range A2, the CPU core 21 performs an action process that expresses the action that the player character PC calls to the non-player character NPC that is the target of the touch operation (step) 98) The processing by the subroutine is terminated. Here, the action that the player character PC calls to the non-player character NPC is to unilaterally speak a non-player character NPC that exists relatively far from the distance that the player character PC talks. This is an action process for expressing an action on a game image.

  On the other hand, when the position coordinate of the non-player character NPC is outside the calling range A2, the CPU core 21 sets the intersection coordinate DC3 as the target point TG and causes the player character PC to move on the plane field FP at a predetermined speed. (Step 99; see FIG. 11), and the processing by the subroutine is finished. Specifically, in the moving action in step 99, the CPU core 21 changes the position coordinate of the player character PC in the object database so as to move toward the intersection coordinate DC3 at a predetermined speed.

  In FIG. 17, when the target object is not the non-player character NPC, in step 101, the CPU core 21 determines whether or not the target object of the touch operation is the player character PC. Then, if the target object is not the player character PC, the CPU core 21 advances the process to the next step 103. On the other hand, if the CPU core 21 is a player character PC, the CPU core 21 performs an action process that expresses an action such as using the equipment of the player character PC (step 102), and ends the process of the subroutine. Specifically, when the player performs a touch operation on the player character PC, the player character PC is equipped in the direction in which the player character PC is facing, regardless of whether there is an action target in the direction in which the player character PC is facing. Take action such as using the item that is being used. For example, when a player character PC equipped with an ax as an item is touch-operated, the player character PC performs an action of swinging an ax in the current direction. Further, when a player character PC that is not equipped with any items is touch-operated, if there is a tree (object OBJ) in the vicinity of the front, an action of shaking the tree is performed.

  In step 103, the CPU core 21 acquires the item type currently equipped by the player character PC. Then, the CPU core 21 refers to the object database to acquire the position coordinate and orientation of the player character PC, and according to the combination of the item type and the type of the plane field FP indicated by the touch operation target object or the intersection coordinate DC3. The action range A3 of the player character PC is calculated (step 104; see FIG. 9), and the process proceeds to the next step. Here, the CPU core 21 calculates a basic action range A3 based on the position coordinates and orientation of the player character PC, and according to the combination of the item type and the type of the target object or the plane field FP corresponding to the touch operation. To change the size of the action range A3. For example, with respect to the player character PC equipped with a fishing rod, the CPU core 21 compares the action range A3 in which the post is a target object of the touch operation with respect to the type of the plane field FP in which the river responds to the touch operation. Is changed to a relatively large action range A3.

  Next, the CPU core 21 determines whether or not the position coordinate or the intersection coordinate DC3 of the target object of the touch operation acquired in step 59 is within the action range A3 (step 105). Then, the CPU core 21 proceeds to the next step 106 when the position coordinate or intersection coordinate DC3 of the target object is within the action range A3, and proceeds to the next step 112 when it is outside the action range A3. .

  In step 106, the CPU core 21 determines whether or not the target object in the action range A3 is an action target (see FIG. 10) of an item equipped with the player character PC. If the target object is not the action target of the item that the player character PC is equipped with, the CPU core 21 proceeds to the next step 108. On the other hand, when the target object is an action target of an item equipped with the player character PC, the CPU core 21 performs an action process in which the player character PC expresses a special action with respect to the target object of the touch operation ( Step 107), the processing by the subroutine is terminated.

  The action target of the item determined in step 106 is an object on which the player character PC performs a special action using the item. For example, in the example shown in FIG. 10, “rock” or the like that performs the “repel” action when the player character PC is equipped with “scoop” is the action target of “scoop” (item). In addition, when the player character PC is equipped with an axe, “trees” and “rocks” that perform “cut trees” and “repel” actions are subject to action of “axes” (items). Further, when the player character PC is equipped with “fishing rod”, there is no object as an action target. In this way, it is determined whether or not it is an action target in step 106 by combining the item and the target object in the action range A3. On the other hand, it is determined in step 106 that the target object (for example, “tree” with respect to “scoop”) that is a combination that does not perform a special action is not an action target object. In step 107, an action process is performed in which a special action corresponding to the combination of the item and the target object in the action range A3 is expressed on the game image.

  In step 108, the CPU core 21 is a normal action target (see FIG. 10) in which the target object within the action range A3 performs the same action regardless of the type and presence of the item that the player character PC is equipped with. Judge whether or not. Then, when the target object is not a normal action target, the CPU core 21 advances the processing to the next step 110. On the other hand, when the target object is a normal action target (for example, “post” described in FIG. 10), the CPU core 21 performs a common action (normal action; Action processing expressing "open post") is performed (step 109), and the processing by the subroutine is terminated.

  In step 110, the CPU core 21 determines whether or not the type of the plane field FP (hereinafter referred to as terrain) indicated by the intersection coordinate DC3 within the action range A3 is the action target of the item equipped with the player character PC. Determine whether. Then, when the terrain is not the action target of the item equipped with the player character PC, the CPU core 21 advances the processing to the next step 112. On the other hand, when the terrain is an action target of an item equipped with the player character PC, the CPU core 21 performs an action process in which the player character PC expresses a special action on the plane field FP at the intersection coordinate DC3. (Step 111), the process by the subroutine is terminated.

  The item action target determined in step 110 is the type of the plane field FP in which the player character PC performs a special action using the item. For example, in the example shown in FIG. 10, when the player character PC is equipped with “scoop”, “ground”, “river”, and the like that perform “dig a hole in the ground” and “swivel” action are “scoop”. "(Item) is the target of action. Further, when the player character PC is equipped with a “fishing rod”, “river” or the like that performs the “fishing” action is an action target of the “fishing rod” (item). In this way, the action target in step 110 is determined based on the combination of the item and the type of the planar field FP at the intersection coordinate DC3 in the action range A3. On the other hand, it is determined that the terrain (for example, “ground” with respect to “ax”) that does not perform a special action is not an action target in step 110. In step 111, an action process is performed in which a special action corresponding to the combination of the item and the terrain corresponding to the intersection coordinate DC3 in the action range A3 is expressed on the game image.

  In step 112, the CPU core 21 performs an action process in which the player character PC moves at a predetermined speed on the plane field FP with the intersection point coordinate DC3 as the target point TG (see FIG. 11), and performs the process according to the subroutine. finish. Since this process is the same as that in step 99, detailed description thereof is omitted.

  Returning to FIG. 13, the CPU core 21 acquires the position coordinate and the drawing model type symbol of the plane coordinate system for each object arranged in the game space based on the object data DO of the object database (step 63). Then, the CPU core 21 converts each position coordinate acquired in step 63 from the plane coordinate system to the drum coordinate system (step 64), and advances the processing to the next step. Note that the process of converting each position coordinate from the plane coordinate system to the drum coordinate system in step 64 is the same as the operation in step 54 (FIG. 12) described above, and thus detailed description thereof is omitted.

  Next, the CPU core 21 arranges each drawing model in accordance with the corresponding coordinates of the drum coordinate system calculated in step 64 and draws a game image with the virtual camera C as a viewpoint (step 65). The process according to the flowchart ends. Specifically, the CPU core 21 refers to the drawing model image data DI1 based on the drawing model type symbol included in each object data DO, and sets the corresponding coordinate position in the game space of the drum coordinate system. A drawing model image is arranged (see FIG. 4). As a result of this step 65, drawing models corresponding to the player character PC, non-player character NPC, and other objects OBJ appearing in the game space are arranged in the game space in the drum coordinate system, and the game image is viewed from the virtual camera C as a viewpoint. Drawn.

  As described above, in the game process executed by the game apparatus 1, a plurality of determination areas (a conversation area A1, a call area A2, and an action area A3 corresponding to the combination) are set in front of the player character PC, and a touch operation is performed. Different actions are expressed depending on the relationship between the position and the determination area. Specifically, when the touched position is an object or terrain in the determination area, the player character PC performs a predetermined action on the object or terrain existing in the determination area. On the other hand, when the touch-operated position is outside the determination region, the player character PC performs an action of moving with the touch operation position as a target. Therefore, even if the touch operation is the same, a variety of character actions can be expressed. Further, in the game process executed by the game apparatus 1, the action is changed depending on the combination of the item equipped with the player character PC and the touched object or terrain. Therefore, even if it is the same touch operation, the character operation | movement changed according to the item and the object of touch operation can be expressed. Furthermore, a plurality of determination areas are set according to the touch operation target and item, and the size of the determination area is changed according to the touch operation target, item characteristics, and operation characteristics (such as conversation and calling). be able to. That is, in the game process executed by the game apparatus 1, it is possible to express a more realistic action by setting a realistic determination region according to the characteristics expressed in the game space.

  In the above description, as shown in FIG. 5, the near-side clip surface (touch panel 15) on which the touch panel coordinate system is set and the virtual wall W are set parallel to each other, but the virtual wall W is not parallel to each other. However, it goes without saying that the perspective projection of the touch input coordinates can be similarly performed. In addition, as shown in FIG. 5, the game image is obtained from the virtual camera C by perspective projection, but the game image may be generated by parallel projection. Further, although the game field set in the drum coordinate system has been described using the cylindrical drum field FD, other game fields such as a plane or a spherical surface may be used.

  Further, in the above description, for the sake of specific explanation, the game process has been described by showing specific shapes of determination areas. However, these are only examples, and the present invention is limited to these shapes. It goes without saying that there is nothing.

  In the above-described embodiment, as an example of the liquid crystal display unit for two screens, a case where the first LCD 11 and the second LCD 12 that are physically separated from each other are arranged one above the other (in the case of two upper and lower screens) will be described. did. However, the configuration of the display screen for two screens may be other configurations. For example, the first LCD 11 and the second LCD 12 may be arranged on the left and right on one main surface of the lower housing 13b. In addition, a vertically long LCD having the same horizontal width as the second LCD 12 and having a vertical length twice as long (that is, a single LCD having a vertical display size of two screens) is placed below. It may be arranged on one main surface of the side housing 13b so that the first and second game images are displayed vertically (that is, displayed adjacently without the upper and lower boundary portions). In addition, a horizontally long LCD having the same vertical width as the second LCD 12 and having a width twice as long as the second LCD 12 is disposed on one main surface of the lower housing 13b, and the first and second in the horizontal direction. The game images may be displayed on the left and right (that is, displayed adjacently without the left and right border portions). That is, the first and second game images may be displayed by physically dividing one screen into two. Regardless of the form of the game image, the present invention can be similarly realized if the touch panel 15 is provided on the screen on which the second game image is displayed. When the first and second game images are displayed by physically dividing one screen into two, the touch panel 15 may be disposed on the entire screen.

  In the embodiment described above, the touch panel 15 is integrally provided on the game apparatus 1. However, it goes without saying that the present invention can be realized even if the game apparatus and the touch panel are configured separately. Further, the touch panel 15 may be provided on the upper surface of the first LCD 11. Furthermore, although two display screens (first LCD 11 and second LCD 12) are provided in the above embodiment, the number of display screens may be one. That is, in the above-described embodiment, the touch panel 15 may be provided by using only the second LCD 12 as a display screen without providing the first LCD 11. Further, in the above embodiment, the touch panel 15 may be provided on the upper surface of the first LCD 11 without providing the second LCD 12.

  Moreover, in the said Example, although the touch panel was used as an input means of the game device 1, other pointing devices may be used. Here, the pointing device is an input device that specifies an input position and coordinates on the screen. For example, a mouse, a trackpad, a trackball, or the like is used as an input means, and is calculated from an output value output from the input means The present invention can be similarly realized by using the information of the drum coordinate system.

  In the above embodiment, the touch panel 15 is integrally provided on the game apparatus 1, but an information processing apparatus (game apparatus) such as a general personal computer that uses the touch panel as one of input means may be used.

  The game program and game device of the present invention can express a variety of character actions even with the same operation using a pointing device, and information on game devices and the like that are operated using a pointing device such as a touch panel. It is useful as a game program or the like executed by the processing device or its information processing device.

External view of game device 1 for executing the game program of the present invention The block diagram which shows the internal structure of the game device 1 of FIG. The figure which shows the example of a screen display displayed on 1st LCD11 and 2nd LCD12 Schematic perspective view for explaining the positional relationship between the drum coordinate system for obtaining the game image displayed on the second LCD 12 and the touch panel 15 Side view for explaining the positional relationship between the drum coordinate system and the touch panel 15 Schematic perspective view for explaining a plane coordinate system for performing game processing Schematic perspective view for explaining the conversation range A1 set for the player character PC Schematic perspective view for explaining the calling range A2 set for the player character PC Schematic perspective view for explaining the action range A3 set for the player character PC Diagram for explaining an example of action content The figure for demonstrating the movement action of player character PC The flowchart which shows operation | movement of the first half that the game device 1 performs a game process by running the game program which concerns on one Embodiment of this invention. The flowchart which shows the operation | movement of the second half in which the game device 1 performs a game process by running the game program which concerns on one Embodiment of this invention. Subroutine showing detailed operations for the process of converting to the position coordinates of the drum coordinate system in step 54 in FIG. 12 and step 64 in FIG. A subroutine showing the detailed operation of the process of converting the intersection coordinates of the drum coordinate system into the plane coordinate system in step 61 in FIG. Subroutine showing detailed operations in the first half of the action processing in step 62 in FIG. Subroutine showing detailed operations in the latter half of the action process in step 62 in FIG. The figure which shows an example of the various data memorize | stored in RAM24 by the processing operation based on FIG. 12 and FIG.

Explanation of symbols

1 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 14h Power switch 14L L button 14R R button 15 Touch panel 16 Stick 17 Memory card 17a ROM
17b RAM
18a, 18b Sound release hole 20 Electronic circuit board 21 CPU core 22 Bus 23 Connector 24 RAM
25 I / F circuit 26 1st GPU
27 Second GPU
28 First VRAM
29 Second VRAM
30a Right speaker 30b Left speaker 31 LCD controller 32 Register 33 Wireless communication unit

Claims (11)

A game image representing at least a part of the virtual space where the player object and at least one other object are present is displayed on the display screen, and input coordinates in the coordinate system on the display screen are output according to the operation of the player. A game program executed on a computer of a game device operated by a pointing device,
In the computer,
A virtual placement coordinate storage step of storing in a memory virtual placement coordinates respectively indicating the positions of the player object and the other object in the virtual space;
A first determination area setting step for setting a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object;
A detection step of detecting input coordinates output from the pointing device;
A pointing object detection step of detecting, when the input coordinates on the display screen overlap with the player object or another object arranged in the virtual space, as the pointing object instructed by the player;
When it is determined that the instruction object is the other object included in the first determination area based on the virtual arrangement coordinates of the instruction object, a predetermined action is performed between the instruction object and the player object. A first action processing step to be executed;
When it is determined that the pointing object is not included in the first determination area based on the virtual arrangement coordinates of the pointing object, the player moves toward the point in the virtual space that overlaps the input coordinates on the display screen. A player object position update step for updating the virtual arrangement coordinates of the player object stored in the memory so that the object moves, and the player object and the other objects based on the virtual arrangement coordinates stored in the memory A game program for executing a display control step for displaying a message on the display screen. A game image representing at least a part of the virtual space where the player object and at least one other object are present is displayed on the display screen, and input coordinates in the coordinate system on the display screen are output according to the operation of the player. A game program executed on a computer of a game device operated by a pointing device,
In the computer,
A virtual placement coordinate storage step of storing in a memory virtual placement coordinates respectively indicating the positions of the player object and the other object in the virtual space;
A first determination area setting step for setting a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object;
A virtual input coordinate calculation step of calculating a virtual input coordinate in the virtual space overlapping the input coordinate on the display screen when the input coordinate is output;
An instruction object detection step of detecting, when the virtual input coordinates calculated by the virtual input coordinate calculation step overlap with the player object or other objects arranged in the virtual space, the object as an instruction object instructed by the player;
When it is determined that the instruction object is the other object included in the first determination area based on the virtual arrangement coordinates of the instruction object, a predetermined action is performed between the instruction object and the player object. A first action processing step to be executed;
When it is determined that the instruction object is not included in the first determination area based on the virtual arrangement coordinates of the instruction object, the virtual object is moved so that the player object moves in a direction based on the virtual input coordinates. A player object position updating step for updating the virtual arrangement coordinates of the player object stored in the memory based on the input coordinates, and the player object and the other object are selected based on the virtual arrangement coordinates stored in the memory. A game program for executing a display control step to be displayed on a display screen.   The virtual input coordinate calculation step includes a step of calculating the virtual input coordinate on the game field when the input coordinate on the display screen overlaps with the game field arranged in the virtual space. The described game program.   The first action processing step includes a step of determining an action to be performed between the player object and the other object according to a combination of an item possessed by the player object and the type of the other object. A game program according to claim 1 or 2, comprising:   The player object position update step includes a step of updating the player object position data stored in a memory based on the input coordinates or the virtual input coordinates when the pointing object is not detected in the pointing object detection step. The game program according to claim 1 or 2.   The game program according to claim 1, wherein the first determination area setting step includes a step of changing a size of the first determination area according to an item possessed by the player object.   The first determination area is set in the virtual space within a range of a predetermined left and right angle with respect to the front of the player object based on the virtual arrangement coordinates of the player object. 2. The game program according to 2. The game program is
A second determination area setting step for setting a second determination area different from the first determination area in the virtual space with reference to the position of the player object; and the pointing object detected in the pointing object detection step When the specific object is arranged outside the first determination area and within the second determination area based on the virtual arrangement coordinates of the pointing object, the first object is inserted between the specific object and the player object. 3. The computer according to claim 1, further causing the computer to execute a second action processing step of performing another operation different from the operation performed by the one action processing step between the specific object and the player object. Game program.   When the pointing object detected in the pointing object detection step is the player object, the game program includes the other object arranged in the first determination area based on the virtual placement coordinates of the other object. The game program according to claim 1, further causing the computer to execute a player action processing step for performing a predetermined action with the player object. A game image representing at least a part of the virtual space where the player object and at least one other object are present is displayed on the display screen, and input coordinates in the coordinate system on the display screen are output according to the operation of the player. A game device operated by a pointing device,
Storage means;
Virtual placement coordinate storage control means for storing in the storage means virtual placement coordinates respectively indicating the positions of the player object and the other object in the virtual space;
First determination area setting means for setting a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object;
Detecting means for detecting input coordinates output from the pointing device;
An indication object detection means for detecting the object as an indication object instructed by the player when the input coordinates overlap with the player object or other objects arranged in the virtual space on the display screen;
When it is determined that the instruction object is the other object included in the first determination area based on the virtual arrangement coordinates of the instruction object, a predetermined action is performed between the instruction object and the player object. First action processing means to execute;
When it is determined that the pointing object is not included in the first determination area based on the virtual arrangement coordinates of the pointing object, the player moves toward the point in the virtual space that overlaps the input coordinates on the display screen. Player object position updating means for updating virtual placement coordinates of the player object stored in the storage means so that the object moves;
A game apparatus comprising: display control means for displaying the player object and the other object on the display screen based on each virtual arrangement coordinate stored in the storage means. A game image representing at least a part of the virtual space where the player object and at least one other object are present is displayed on the display screen, and input coordinates in the coordinate system on the display screen are output according to the operation of the player. A game device operated by a pointing device,
Storage means;
Virtual placement coordinate storage control means for storing in the storage means virtual placement coordinates respectively indicating the positions of the player object and the other object in the virtual space;
First determination area setting means for setting a first determination area based on the position of the player object in the virtual space based on the virtual arrangement coordinates of the player object;
Virtual input coordinate calculation means for calculating virtual input coordinates in the virtual space overlapping the input coordinates on the display screen when the input coordinates are output;
Indicating object detection means for detecting, when the virtual input coordinates calculated by the virtual input coordinate calculating means overlap with the player object or another object arranged in the virtual space, the object as an instruction object instructed by the player; ,
When it is determined that the instruction object is the other object included in the first determination area based on the virtual arrangement coordinates of the instruction object, a predetermined action is performed between the instruction object and the player object. First action processing means to execute;
When it is determined that the instruction object is not included in the first determination area based on the virtual arrangement coordinates of the instruction object, the virtual object is moved so that the player object moves in a direction based on the virtual input coordinates. Player object position updating means for updating virtual placement coordinates of the player object stored in the storage means based on input coordinates;
A game apparatus comprising: display control means for displaying the player object and the other object on the display screen based on each virtual arrangement coordinate stored in the storage means.

Images