JP2024064406A - Game system, computer program and control method for game system - Google Patents

Abstract

[Problem] By activating an effect suitable for a role, game elements are used effectively regardless of the assigned role. [Solution] A game system 100 that provides a game in which a first role and a second role are assigned to a plurality of characters P includes role switching means 32E that switches the role of the character from the first role to the second role when a predetermined switching condition is satisfied, association means 32F that associates game elements that can be used in the game with the character, and effect control means 32G that activates the effect of the game element according to a first process included in multiple types of calculation processing when the game element is used with the character assigned the first role, and activates the effect of the game element according to a second process included in multiple types of calculation processing and different from the first process when the game element is used with the character assigned the second role. [Selected Figure] Figure 4

Description

The present invention relates to a game system that activates the effects of game elements according to processing included in multiple types of computational processing, a computer program for the game system, and a control method.

Patent Document 1 describes an information processing system that includes an information processing server located on the network side and a mobile terminal device carried by users who participate in the game. One example of a game provided by this information processing system is a game called Cyber War. In this game, users are divided into two groups, an attacking group and an escaping group, and fight each other. The condition for ending the game is that all members of the escaping group are captured within the time limit. In other words, if all members are captured, the attacking team wins, and if the time limit expires without any members of the escaping group being captured, the escaping team wins.

The information processing system also provides a function for checking the location of other players in the game being played. This makes it possible to search for an opponent to catch and to escape from that opponent. The information processing server of the information processing system also includes an item processing unit. When the item processing unit receives a request to use an item purchased by the user from the mobile terminal device, it executes processing according to the contents of the item.

Furthermore, Patent Document 1 discloses a configuration in which the effect of an item used changes based on the user's role. For example, when a user selects the role of an intelligence saboteur, the item's effects, search time and search distance, are set to be longer than for users who select other roles. Here, when an item is used, the search time and size of the search location range are determined based on the role. Then, the user is extracted and location information is acquired, and processing such as an instruction to generate user location notification information (for example, location information indicating the locations of other users) to be sent to the user is performed.

JP 2013-244307 A

In games, a character controlled by a player may be able to use game elements (e.g., items). In this case, depending on the role of the character, the item may not be usable or there may be no point in using it. For example, an item that provides an advantage in escaping is meaningless to a character assigned the role of attacker. In this way, depending on the role assigned, an item may not be used effectively. Furthermore, if game elements could be used in a manner that suited the character's role, the range of ways in which game elements could be used would be expanded, making the game more interesting and strategic.

The game system according to one embodiment is a game system that provides a game in which a first role and a second role are assigned to a plurality of characters that move around a game field, and includes a role switching means that switches the role of the character from the first role to the second role when a predetermined switching condition is satisfied, an association means that associates the character with a game element that can be used in the game, and an effect control means that, when the game element is used with the first role assigned to the character, activates the effect of the game element according to a first process included in a plurality of types of calculation processes that are preset, and, when the game element is used with the second role assigned to the character, activates the effect of the game element according to a second process that is included in the plurality of types of calculation processes and different from the first process.

In addition, a computer program according to another aspect is a computer program for a game system that provides a game in which a first role and a second role are assigned to a plurality of characters that move around a game field, and includes a computer, the computer causes the computer to switch the role of the character from the first role to the second role when a predetermined switching condition is satisfied, associate the character with a game element that can be used in the game, activate the effect of the game element according to a first process included in a plurality of types of pre-set calculation processes when the game element is used in a state in which the first role is assigned to the character, and activate the effect of the game element according to a second process included in the plurality of types of calculation processes and different from the first process when the game element is used in a state in which the second role is assigned to the character.

In addition, a control method according to another aspect is a control method for a game system including a computer and a game in which a first role and a second role are assigned to a plurality of characters moving on a game field, and the computer switches the role of the character from the first role to the second role when a predetermined switching condition is satisfied, associates the character with a game element that can be used in the game, and activates the effect of the game element according to a first process included in a plurality of types of pre-set calculation processes when the game element is used with the first role assigned to the character, and activates the effect of the game element according to a second process included in the plurality of types of calculation processes and different from the first process when the game element is used with the character assigned the second role.

This allows the processing that is applied when one role is assigned to be different from the processing that is applied when another role is assigned.

FIG. 1 is a schematic diagram showing the overall configuration of a game system. FIG. 1 is a schematic diagram for explaining a game. FIG. 1 is a schematic block diagram of a game system. FIG. 4 is a schematic block diagram of a progress control unit. FIG. 4 is a schematic diagram showing an example of a battle screen. 13 is a flowchart of an effect activation process.

Below, exemplary embodiments for carrying out the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, and relative positions of components described in the following embodiments can be set arbitrarily and can be changed according to the configuration or various conditions of the device or method to which the present invention is applied. Furthermore, unless otherwise specified, the scope of the present invention is not limited to the embodiments specifically described below.

The overall configuration of a game system 100 according to one embodiment of the present invention will be described with reference to FIG. 1. The game system 100 includes a server 20 and a plurality of game consoles 31 as client devices that can connect to the server 20 via a predetermined network 50. The server 20 is configured as a single logical server device by combining a plurality of server units 21 as computer devices. However, the server 20 may also be configured by a single server unit 21. Alternatively, the server 20 may be configured logically using cloud computing.

The network 50 is configured to connect the game machine 31 to the server 20. As an example, the network 50 is configured to realize network communication using the TCP/IP protocol. Specifically, a local area network 52 connects the server 20 and the game machine 31 to the Internet 51. The Internet 51 as a wide area network and the local area network 52 are connected via a router 53. Alternatively, a local server may be installed between the game machine 31 and the router 53 of the store 30. In this case, the game machine 31 is connected to the server 20 so as to be able to communicate with the server 20 via the local server. The server units 21 of the server 20 may be connected to each other via the Internet 51 instead of or in addition to the local area network 52.

The server 20 provides various services for the game to the game machine 31 or its player. For example, these services include a matching service that matches multiple players when they play a game via the network 50. Each player is matched appropriately through this matching service. This matching service may match players who will play the game together, or players who will compete against each other in the game.

The service also includes a distribution service that distributes and updates programs or data via the network 50. The server 20 distributes various programs or data necessary for providing the service to each game machine 31 through this distribution service as appropriate. The server 20 may also provide a service that receives player identification information from the game machine 31 and authenticates the player. Furthermore, the server 20 may provide a service that receives play data of an authenticated player from the game machine 31 and stores it. In addition, the server 20 may provide a service that provides the play data stored by the server 20 to the game machine 31. In addition, the server 20 may provide a service that collects fees from players and makes payments.

The game machine 31 is a commercial or business game device that allows players to play games within a range corresponding to the payment of a specified fee. This game machine 31 is sometimes called an arcade game machine. The game machine 31 is also a computer device, and is installed in the store 30 with the main purpose of generating profits by having many players play the game repeatedly.

Alternatively, the game machine 31 may be a computer device that can be connected to a network and is provided for the player's personal use. For example, such game machines 31 include stationary or notebook personal computers and mobile terminal devices such as mobile phones (including smartphones). In addition, various types of computer devices such as stationary home game machines, portable game machines, and portable tablet terminal devices are included in such game machines 31. These computer devices can be equipped with various types of computer software to allow players to enjoy various services provided by the server 20.

As an example, the game system 100 provides a game in which a first role and a second role are assigned to a plurality of characters P who move through a game field GF (FIG. 2) via the game machine 31. For example, the game system 100 provides, as such a game, a competitive escape game in which a player controls a character P to compete against an opposing player or a computer. In this escape game, the character P is assigned either a first role or a second role (e.g., an escape role and a pursuit role). In this way, the roles are distinguished by purpose, but may also be distinguished by gender, race, name, appearance, etc.

The character P is a game element that moves around the game field GF in response to the player's operation in order to progress through the game. Note that a game element is an element that is displayed on the game machine 31 during the game or that affects the progress of the game. For example, game elements include game objects or equipment that are displayed on the game machine 31, and items or skills that affect the progress of the game when used.

The game system 100 may provide games other than escape games, so long as the games involve role switching. For example, the game system 100 may provide sports games such as soccer games or baseball games in which the attacking and defending sides switch places. Alternatively, the game system 100 may provide turn-based games in which the attacking turn and the defending turn switch places. As other examples, the game system 100 may provide games such as simulation games, competitive trading card games, music games, board games, mahjong games, RPG games, horse racing games, fighting games, puzzle games, quiz games, and shooting games. In the following explanation, an example in which an escape game is provided will be mainly described.

[Escape Game]
The escape game will be described with reference to Fig. 2. In the example of Fig. 2, a character P operated by each of a plurality of players belongs to one of the groups, and the game is played in a format in which the groups compete against each other. Specifically, the game is played in a format in which a first group G1 competes against a second group G2. Alternatively, the number of groups may be three or more.

In the escape game, each character P belonging to a group is assigned either the role of obstruction or of attack. To this end, a role of obstruction or of attack is assigned to each group. Furthermore, each character P belonging to each group plays the game in cooperation with a player who controls another character P belonging to his/her own group, with the goal of escaping from the game field GF as the victory condition of the game. Furthermore, the roles assigned to each group are repeatedly switched from the start to the end of the game, each time a switching condition is met before the victory condition is met. Each time the roles are switched, each player operates a character P assigned the role assigned to each group.

In the example of FIG. 2, the first group G1 is assigned the role of obstruction, and the second group G2 is assigned the role of attack. In this case, the goal of the second group G2 is to achieve the victory condition of escaping from the game field GF. On the other hand, the goal of the first group G1 is to obstruct the achievement of the victory condition. Therefore, the first group G1 becomes the obstruction group, and the second group G2 becomes the attacking group. Alternatively, the escape game may be configured so that the players of the first group G1 and the second group G2 cooperate with each other to achieve the victory condition.

The roles initially assigned to each group are determined appropriately based on various conditions. As one example, the roles initially assigned are determined according to the results of a mini-game, randomly, or based on the player's selection. For example, the mini-game is a lottery game in which roles are randomly selected by tossing a coin. As another example, the mini-game may be any of a variety of games, such as an action game, a simulation game, a shooting game, or a music game.

Each group is made up of at least one character P. The number of characters P making up each group may differ between groups. In the example of FIG. 2, both the first group G1 and the second group G2 are made up of the same number of characters P, three characters P. The characters P making up the group may include NPCs. However, in the example of FIG. 2, the first group G1 includes three obstacle characters P1 each controlled by three players. Furthermore, the second group G2 includes three capture characters P2 each controlled by three players.

The obstruction character P1 and the attacking character P2 are placed in the game field GF. In the example of FIG. 2, for ease of explanation, each character P is placed in the game field GF by group. However, each character P is placed in any position in the game field GF. The player who controls the obstruction character P1 belonging to the first group G1 has the obstruction character P1 perform obstructive actions that prevent the achievement of the victory condition. The player who controls the attacking character P2 belonging to the second group G2 has the character perform attacking actions to achieve the victory condition.

The victory conditions can be set arbitrarily and may be fulfilled by the achievement of one condition or by the achievement of multiple conditions. In the example of FIG. 2, one of the victory conditions is for the conquering character P2 to reach the escape gate. The number of conquering characters P2 that must reach the escape gate may be one, or two or more. As another example, one of the victory conditions may be to pass all checkpoints set up in the game field GF, or to achieve a predetermined result in a sub-game.

Specifically, a key object KY for opening an escape gate is placed in the game field GF. As one example, the escape gate appears when the attacking character P2 performs an action of rotating the key object KY. Alternatively, the escape gate may appear in the game field GF beforehand. As one example, the key object KY is set to an unreachable state until one of the victory conditions is met. Note that the key object KY may be hidden, or may be placed in a place in the game field GF that is difficult to reach.

As an example, the amount of collectible elements CE collected is calculated by dividing it into the amount possessed by each capture character P2 and the amount stored by the second group G2. Specifically, when a capture element CE is collected by each capture character P2, the collected capture element CE is first added to the amount possessed by each capture character P2. In the example of FIG. 2, when the capture character P2 touches or reaches a capture element CE placed as a game element in the game field GF, a predetermined amount is added to the amount possessed by the capture character P2.

Alternatively, the possession amount may be added up depending on the length of time that the capture character P2 remains at a location where the collectible elements CE are collected after the capture character P2 reaches the location. The collected amount does not have to be divided into possession amount and stored amount, and a predetermined amount may be added to the collected amount at the same time as the collectible elements CE are collected. As an example, a certain upper limit is set on the possession amount that each capture character P2 can possess. Alternatively, there may be no limit on the possession amount that each capture character P2 can possess.

In addition, with regard to the amount of collectible elements CE stored, charge points CP are placed in the game field GF as places for storing collectible elements CE possessed by the capture character P2. In the example of FIG. 2, a charge point CP common to all capture characters P2 is placed. Alternatively, individual charge points CP may be placed for each capture character P2. Then, when a capture character P2 possessing a collectible element CE reaches a charge point CP, an amount of collectible elements CE corresponding to the amount possessed by that capture character P2 is added to the amount of collectible elements CE stored in the second group G2.

As an example, the stored amount is added according to the length of time that the capture character P2 remains at the charge point CP after the capture character P2 reaches the charge point CP. That is, the stored amount gradually increases according to the length of time that the capture character P2 remains at the charge point CP. In other words, while the capture character P2 remains there, a predetermined amount of collectible elements CE gradually transitions from the possessed amount to the stored amount. Alternatively, when the charge point CP is reached, some or all of the possessed amount may transition to the stored amount. Then, when the stored amount at the charge point CP reaches a predetermined amount, the key object KY changes to a reachable state.

The amount of collectible elements CE collected may be maintained when switching roles, or all or part of the collected amount (e.g., an amount equivalent to the stored amount) may be appropriately reset to an initial value. For example, when switching roles, the stored amount of collectible elements CE is maintained, and the amount possessed by each capture character P2 is reset to an initial value (e.g., zero).

The obstruction character P1 performs obstruction actions that obstruct the achievement of the victory conditions by the second group G2. As an example, obstruction actions include attack actions that attack the capture character P2. The obstruction actions also function as actions to satisfy the switching conditions for switching roles. Therefore, the capture character P2 can obstruct the achievement of the victory conditions by performing attack actions and satisfying the switching conditions.

Specifically, the second group G2, which is the attacking group, is given a predetermined number of life points when it is first assigned a role or when its role is switched. These life points are reduced by one point each time the obstruction character P1 is successful in an attack on the attacking character P2. For example, when an attack by the obstruction character P1 hits the attacking character P2, the attack is successful. The attack functions as an action to reduce the life points of the second group G2.

As an example, an attacking action is successful when the obstructing character P1 comes into contact with the conquering character P2. In other words, by coming into contact with the conquering character P2, each obstructing character P1 can reduce the life points set for the second group G2 and come closer to achieving the switching condition. Furthermore, the attacking action may include an attacking action from a position close to the conquering character P2 and an attacking action from a position distant from the conquering character P2.

As another example, life points are given to the capture group in common, and the switching condition is met when the life points reach zero. Alternatively, life points may be given to each capture character P2. In this case, the switching condition is met when the life points of all capture characters P2 reach zero.

Furthermore, if the attack action is successful, the attacked attacking character P2 resumes its action from a predetermined starting position. Normally, the attacking character P2 moves from its starting position, so the starting position is different from the attacked position. As an example, the attacking character P2 can resume its action immediately after the attack action is successful. Alternatively, a predetermined delay time may be set between the successful attack action and the attacking character P2 resuming its action. Furthermore, the obstruction action may include an action to capture the attacking character P2, or an action to prevent the attacking character P2 from performing all or part of its actions for a certain period of time. The attack action may also result in the attacking character P2 being captured or the attacking character P2 being unable to act.

When the switching condition is satisfied before the escape, the roles of the first group G1 and the second group G2 are switched. Then, the game is resumed so that the character that was the attacking character P2 before the switch performs an obstructive action, and the character that was the obstructing character P1 before the switch performs an attacking action. As an example, the resumption position of the action after switching for the character that was the attacking character P2 before the switch is the position when the switching condition is satisfied. Also, the resumption position of the action after switching for the character that was the obstructing character P1 before the switch is a predetermined start position. However, the resumption position of the action after switching may be set to any position. For example, for both the attacking character P2 and the obstructing character P1, the resumption position of the action after switching may be the position when the switching condition is satisfied, or may be the predetermined start position.

In addition, item objects B0 are placed as game elements in the game field GF to be acquired by the character P. In the game field GF, the player can operate the character P to acquire an item (hereinafter sometimes simply referred to as an "item") corresponding to the item object B0. As an example, when the character P comes into contact with the item object B0, the character P acquires the item.

Alternatively, the player may acquire items by purchasing them in advance. The character P may also acquire an item determined by lottery by contacting the item object B0. Furthermore, the character P may be able to steal an item from an opponent character P (e.g., the attacking character P2) by attacking the opponent. The character P may also acquire an item by performing an action (e.g., destroying) that targets a game object (e.g., an obstacle) placed in the game field GF.

The acquired items are associated with the character P or the player, and can be used during the game. When an item is used during the game, a specified effect is activated. In the example of FIG. 2, "oil" is placed on the game field GF as the item object B0. Both the attacking character P2 and the obstructing character P1 can acquire this item. When the attacking character P2 uses "oil", it becomes an attacking item that activates the effect of making the obstructing character P1 "slip" and temporarily restricting his movement. On the other hand, when the obstructing character P1 uses "oil", it becomes an obstructing item of "flamethrower" that activates the effect of being able to perform an attack action from a distance.

As an example, the game system 100 provides a game that is played through the player's operation of a character P. In this game, a first role and a second role that are different from each other are assigned to each character P. For example, the first role is a strategy role that aims to achieve the victory conditions. The second role is an obstruction role that prevents the victory conditions from being achieved. However, there may be three or more types of roles provided in the game. For example, there may be a vanguard role and a rearguard role that aim to achieve the victory conditions, and an obstruction role.

In the game, a character P assigned the role of attacking and a character P assigned the role of obstruction compete to achieve the victory condition. For example, in the game, a player operating an attacking character P2 assigned the role of attacking competes against a player operating an obstruction character P1 assigned the role of obstruction. Alternatively, the game system 100 may provide a game in which players cooperate to achieve a predetermined end condition (for example, defeating a common enemy character).

As an example, the first role is the role of fleeing from an opponent, and the character assigned the first role is a fleeing character. The second role is the role of chasing the fleeing character, and the character assigned the second role is a chasing character. Specifically, the fleeing character is operated to perform an attacking action of collecting collection elements CE while moving in the game field GF to flee from the chasing character. On the other hand, the chasing character is operated to perform an obstructing action of attacking the fleeing character while moving in the game field GF to chase the fleeing character.

Here, the escaping character takes strategic action to achieve a certain victory condition. In other words, the role of escaping is included in the strategic role of aiming to achieve the victory condition. On the other hand, the pursuing character takes obstructive action to prevent the escaping character from achieving the victory condition. In other words, the role of pursuing is included in the obstructive role of preventing the achievement of the victory condition.

The victory conditions may be set as appropriate conditions that utilize various game elements. As an example, collectible elements CE are placed in the game field GF shown in FIG. 3 as game elements that are accumulated by the conquering character P2. The victory conditions include the amount of collected elements CE accumulated (i.e., the accumulated amount) reaching a predetermined amount. Other conditions that may be included in the victory conditions include, for example, opening an escape gate and reaching an escape gate. Alternatively, the victory condition may be only one condition (for example, the accumulated amount reaching a predetermined amount).

The escape character's achievement of the victory condition is hindered by the pursuit character. Furthermore, the escape role and pursuit role are switched if a switching condition is met before the escape character achieves the victory condition. In other words, when the switching condition is met, the roles of the attacking character and the obstruction character are swapped. The attacking character is assigned the role of obstruction and becomes an obstruction character. On the other hand, the obstruction character is assigned the role of attack and becomes an attacking character. This switching is repeated until the game ends.

As an example, the switching condition is satisfied when the number of successful actions taken by the pursued character against the escaping character reaches a predetermined number (e.g., three times). In other words, the switching condition is when the number of successful actions reaches a predetermined number. The action in question is a type of obstructive action, such as the pursued character touching the escaping character. The action in question may also be the pursued character attacking the escaping character.

The game provided by the game system 100 may be played by any number of players. For example, when an escape game is provided, it is played by multiple players. In this case, the characters P operated by each of the multiple (e.g., two) players may be assigned the same role (the role of obstruction or the role of attack). Furthermore, the character P operated by at least one of the multiple players may be assigned a different role from the characters P operated by the other players. For example, the character P operated by one player may be assigned the role of obstruction, and the character P operated by the other player may be assigned the role of attack. Note that the following description will mainly describe an example in which the escape game is played by multiple players and different roles are assigned to the multiple characters P.

[Control system]
Next, the control system of the game system 100 will be described with reference to Fig. 3. The game system 100 includes a server 20, which includes a server control unit 22 as a computer and a server storage unit 23 as a server storage means. As an example, the server control unit 22 includes a processor (not shown). The processor is, for example, a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit). The server storage unit 23 is a memory as a computer-readable non-transitory storage medium, and stores a server program PG1. The processor controls the entire server 20 based on the server program PG1 stored in the memory, and also centrally controls various processes.

The server storage unit 23 also includes RAM (Random Access Memory), which is a system work memory for the processor to operate, as well as ROM (Read Only Memory) for storing the server program PG1 and system software, and storage devices such as HDD (Hard Disc Drive) and SSD (Solid State Drive). The server storage unit 23 may be configured so that one storage device stores all data, or so that multiple storage devices store data in a distributed manner.

The server control unit 22 is also connected, either wired or wirelessly, to an operation unit (not shown) including a keyboard or various switches for inputting predetermined commands and data. The server control unit 22 is also connected, either wired or wirelessly, to a display unit (not shown) for displaying the input state, setting state, measurement results, and various information of the device. Furthermore, the server control unit 22 can also perform control according to a server program PG1 stored in a portable recording medium such as a CD (Compact Disc), a DVD (Digital Versatile Disc), a CF (Compact Flash) card, or a USB (Universal Serial Bus) memory, or an external storage medium such as a server on the Internet.

The server storage unit 23 also records server data 23A necessary for providing various services for the game. The server data 23A includes, for example, play data 23B and character data 23C as data necessary for providing various services. Furthermore, the server data 23A may include the same data as part or all of the game data 33A stored in the game machine 31.

Play data 23B is data describing information related to each player's past play performance. As an example, if the parameters of a game character P change depending on the play situation, the past play performance includes the amount of change. Furthermore, character data 23C is data describing information on the parameters that define each character P. As an example, character data 23C includes, as parameter information, the initial value of the parameter, or the value of the parameter before the change. When the parameters of each character P change, the parameter after the change is reproduced by a combination of play data 23B (e.g., the amount of change) and character data 23C (e.g., the initial value). Alternatively, character data 23C may include the value of the parameter after growth.

The server control unit 22 is also provided with various logical devices that are realized by a combination of the hardware resources of the server control unit 22 and the server program PG1 as a software resource. In the example of FIG. 3, the server control unit 22 has a management unit 22A as a logical device. The management unit 22A executes processing for providing services for games. For example, the management unit 22A executes processing for realizing a matching service.

[game machine]
The game machine 31 includes a monitor 34 and a speaker 35 as output devices connected to the game machine control unit 32. The monitor 34 is a display device for displaying a game screen including various images for the game. The monitor 34 displays various game screens and game images in accordance with an output signal from the game machine control unit 32. The speaker 35 is an audio output device for reproducing various sounds. The speaker 35 outputs various sounds such as background music for the game in accordance with an output signal from the game machine control unit 32.

The game machine 31 also includes a control panel 36 as an input device connected to the game machine control unit 32. The control panel 36 is configured to input operations by the player in order to move the character P in the game field GF. To this end, the control panel 36 is provided with various operation units. For example, the operation unit has a push button switch or a stick for controlling the movement direction of the character P. Alternatively, the control panel 36 may have, as the operation unit, a touch panel that outputs a signal corresponding to a touch operation by the player's finger. The control panel 36 then outputs a signal corresponding to the operation by the player on the operation unit to the game machine control unit 32. The game machine 31 also includes a fee collection device (not shown) for collecting a predetermined fee.

The game machine 31 also includes a game machine control unit 32 as a computer, and a game machine memory unit 33 as a game machine storage means. As an example, the game machine control unit 32 has a processor (not shown). The processor is, for example, a CPU or an MPU. The game machine memory unit 33 is a memory serving as a computer-readable non-transitory storage medium, and stores a game program PG2. The processor controls the entire game machine 31 based on the game program PG2 stored in the memory, and also provides overall control over various processes.

The game machine storage unit 33 includes RAM, which is a system work memory, and storage devices such as ROM, HDD, and SSD that store the game program PG2 and system software. The game machine storage unit 33 may be configured so that one storage device stores all data, or so that multiple storage devices store data in a distributed manner. The game machine storage unit 33 also stores game data 33A. The game data 33A is data for allowing the player to play the game according to the game program PG2. For example, the game data 33A is pre-installed in the game machine 31, distributed from the server 20, or stored in the game machine storage unit 33 via various recording media.

For example, game data 33A includes image data for displaying various images, and BGM data for playing various BGM. Furthermore, game data 33A includes play data 33B and character data 33C. For example, play data 33B is data describing information on the past playing performance of a player who is playing game machine 31 and has been authenticated by server 20. Furthermore, character data 33C is data describing information on parameters that define each character P associated with the player. As an example, play data 33B and character data 33C are distributed from server 20 so as to include the portions necessary for the player to play the game.

The game machine control unit 32 is provided with various logical devices that are realized by combining the hardware resources of the game machine control unit 32 with the game program PG2 as a software resource. In the example of FIG. 3, the game machine control unit 32 has, as logical devices, a matching unit 32A, a range setting unit 32B, an evaluation unit 32C, and a progress control unit 32D.

The matching unit 32A executes various processes related to matching through the matching service. For example, the matching unit 32A cooperates with the management unit 22A of the server 20 to realize the matching service. The matching unit 32A executes processes necessary for matching opponent players or collaborating players. As an example, in a game, multiple groups compete against each other, and each of the multiple groups includes multiple characters P operated by multiple players. In this case, the matching unit 32A also executes processes for grouping and identifying the multiple players belonging to each group.

The range setting unit 32B presents the game field GF through the monitor 34. The range setting unit 32B also executes various processes for preparing a predetermined game field GF within the game. This game field GF is set as a common movement range for all characters P. Therefore, the range setting unit 32B sets the game field GF as a range in which the character P performs attacking or obstructing actions. For example, game objects such as obstacle objects that impede the actions (e.g., movement) of the character P, gimmick objects that assist the actions of the character P, and various item objects B0 are placed in the game field GF. The range setting unit 32B also executes processes for placing these game objects in the game field GF.

For example, the range setting unit 32B causes the monitor 34 to display the game field GF as the result of capturing an image of a virtual three-dimensional space constructed in advance by a virtual camera. In this way, the range setting unit 32B presents the game field GF through the monitor 34. The range setting unit 32B also presents the game field GF such that a large number of game elements are arranged in the virtual three-dimensional space corresponding to the game field GF. Alternatively, the range setting unit 32B may construct a virtual three-dimensional space corresponding to the game field GF.

The evaluation unit 32C executes various processes for evaluating the play of the player. For example, the evaluation unit 32C executes processes according to the evaluation target and evaluation method of the player's play in the game. The evaluation unit 32C also executes processes for determining the win or loss of the game.

The progress control unit 32D executes various processes for controlling the progress of the game. For example, the progress control unit 32D executes processes for controlling the behavior of the character P in response to the player's operation. Similarly, the progress control unit 32D executes processes for activating the effects of an item in response to the player's operation to use the item. The progress control unit 32D also executes processes for switching between the role of attacking and the role of obstructing. Furthermore, the progress control unit 32D also executes processes related to game elements related to the victory conditions. For example, the progress control unit 32D executes processes for increasing or decreasing the amount of collection, increasing or decreasing the amount of possession, switching roles, etc.

To that end, as shown in FIG. 4, the progress control unit 32D has a role switching unit 32E as an example of role switching means, an association unit 32F as an example of association means, an effect control unit 32G as an example of effect control means, a notification unit 32H as an example of notification means, a reception unit 32J as an example of reception means, and a lottery unit 32K as an example of lottery means. Each of these units is a logical device realized by a combination of the hardware resources of the game machine control unit 32 and the game program PG2 as a software resource.

The role switching unit 32E switches the role of character P from the first role to the second role when a predetermined switching condition is met. For example, when the switching condition is met, the role switching unit 32E switches the role of character P from the attacking role to the obstructing role. Or, the role switching unit 32E switches the role of character P from the obstructing role to the attacking role. Specifically, the role switching unit 32E switches the attacking role, which is the first role of the attacking character P2, to the obstructing role, which is the second role. Also, the role switching unit 32E switches the obstructing role, which is the second role of the obstructing character P1, to the attacking role, which is the first role.

For example, the switching condition is that the number of successful attack actions by the pursuit character, which is the obstruction character P1, against the escaping character, which is the attacking character P2, reaches a predetermined number. In this case, the character P assigned the first role of escaping is the escaping character. Also, the character P assigned the second role of tracking, which is to track the escaping character, is the pursuing character. Then, the role switching unit 32E determines that the switching condition is met when the number of successful actions (e.g., attack actions) taken by the pursuit character against the escaping character reaches a predetermined number.

When the switching condition is met, the role switching unit 32E switches the role of the escaping character from the first role of escaping to the second role of pursuing. At the same time, the role switching unit 32E switches the role of the pursuing character from the second role of pursuing to the first role of escaping. Alternatively, the switching condition may be that a predetermined parameter (e.g., life points) associated with each of the attacking characters P2 or the group to which the attacking character P2 belongs reaches a predetermined value (e.g., zero). Note that, in the case where the predetermined parameter decreases due to the number of successful attack actions, the switching condition is the same as the number of successful attacks reaching a predetermined number.

In the above example, the roles of characters P belonging to different groups are switched by switching, but the roles do not have to be switched. For example, the role switching unit 32E may switch the first role of the attacking character P2, that of a vanguard, to the second role of a rearguard. Furthermore, the role switching unit 32E may switch the first role of the obstruction character P1, that of a vanguard, to the second role of a rearguard.

After the game starts, the role switching unit 32E assigns an initial role to each group. As an example, the role switching unit 32E executes a lottery game in which roles are randomly selected by coin toss. The role switching unit 32E then assigns each group the role determined by the lottery game. In the example of FIG. 2, the role switching unit 32E assigns the role of disruption to the first group G1 and the role of attack to the second group G2. For example, the role switching unit 32E associates the character identification information of each character P belonging to each group with the role identification information of the role assigned to each group.

The associating unit 32F associates a game element usable in the game with the character P. As an example, the game element is an item object B0 that is placed in the game field GF to be acquired by the character P. When the character P acquires the item object B0, the associating unit 32F associates the character P with the item object B0. For example, the associating unit 32F associates character identification information that uniquely identifies the character P with item identification information that uniquely identifies an item corresponding to the item object B0, and includes it in the character data 33C and stores it in the game machine storage unit 33.

As a result, the character P who has acquired the item object B0 has acquired the item corresponding to the item object B0 in a usable state. Alternatively, the game element may be an item sold to be used by the character P. In this case, when the player purchases the item, the association unit 32F associates the item with the character P selected by the player to control. For example, the association unit 32F associates the item identification information of the item with the character identification information of the character P, includes it in the character data 33C, and stores it in the game machine storage unit 33. As a result, the character P has acquired the purchased item in a usable state. Note that the manner in which the item is acquired is not limited to the manner described above.

Similarly, when the game element is a skill, the association unit 32F associates the skill identification information that uniquely identifies the skill with the character identification information of the character P. As an example, the skill is acquired so that it can be used by the character P growing up, or by acquiring an object placed in the game field GF. Alternatively, the skill may be acquired so that it can be used by the player purchasing it. Note that the manner in which the skill is acquired is not limited to the above-mentioned manner. As an example, the skill can be used to improve the parameters or abilities of each character P, such as the movement speed or jump height. Alternatively, the skill can be used to set a trap or obstacle to hinder an action, to prevent an attack from being received or to prevent an abnormal state from occurring, to become difficult to see or not to be displayed on the opponent's monitor 34, etc.

When a game element is used with a first role assigned to character P, effect control unit 32G activates the effect of the game element according to a first process included in multiple types of pre-set calculation processes. On the other hand, when a game element is used with a second role assigned to character P, effect control unit 32G activates the effect of the game element according to a second process included in multiple types of calculation processes and different from the first process.

As an example, the multiple types of calculation processes include a "slip" process that activates an effect that temporarily restricts the movement of the obstruction character P1. The multiple types of calculation processes also include a "flamethrower" process that activates an effect that allows the obstruction character P1 to perform an attacking action from a distance. When using the above-mentioned game element "oil," in a state in which the attacking character P2, which is assigned the attacking role as its first role, is being controlled, the effect control unit 32G executes the "slip" process. On the other hand, in a state in which the obstruction character P1, which is assigned the obstruction role as its second role, is being controlled, the effect control unit 32G executes the "flamethrower" process.

The game elements are used in response to a player's operation (e.g., pressing a predetermined button). Alternatively, the game elements may be used automatically when acquired, or at a predetermined timing (e.g., when a predetermined time has elapsed since acquisition or when a parameter reaches a predetermined value). Furthermore, a character P may be able to use game elements acquired or purchased by other characters P that belong to a group that is assigned the same role as the character P.

The type of game element used during the game may be one or more. Furthermore, the game elements may be acquired after the first role is assigned, or may be acquired before the role is assigned. However, if the game elements can be acquired after the first role is assigned, the player can adjust the timing of acquiring the game elements during the game. For example, the player acquires game elements at a timing that allows the player to progress in the game advantageously, taking into account the assigned role. This allows for a range of strategies for progressing in the game. Furthermore, the game elements may or may not be placed in the game field GF (e.g., they can be acquired randomly). However, if they are placed in the game field GF, the player can choose the location of acquiring the game elements during the game. For example, the player acquires game elements that are placed in a location that allows the player to progress in the game advantageously, taking into account the position of the character. This allows for a range of strategies for progressing in the game.

By executing different processes in this way, it is possible to make the process applied when a certain role is assigned different from the process applied when another role is assigned. This allows the effect appropriate to the role to be activated, allowing the game elements to be used effectively regardless of the assigned role. In other words, if a process that activates the same effect (e.g., expanding the attack range) is executed regardless of the assigned role, a situation may arise in which there is no point in using an item even if it is acquired. In other words, depending on the role, a situation may arise in which an item cannot be used, or there is no point in using the item. For example, an item used for interference is useful when the interference role is assigned, but there is no point in using it when the capture role is assigned.

In contrast, according to the game system 100 of this embodiment, game elements can be used effectively regardless of the assigned role. Therefore, whether the item object B0 (e.g., "oil") is arranged in a manner that makes it easy for the attacking character P2 to acquire it or the obstructing character P1 to acquire it, the item can be used effectively. As a result, the arrangement of the item object B0 does not give either role an advantage or disadvantage. Therefore, game design (e.g., the type, timing of arrangement, location, and number of item objects B0, etc.) is not restricted, and the degree of freedom in game design can be increased. Furthermore, since items can be used in a manner that corresponds to the assigned role, the range of ways in which items can be used is expanded, and the interest and strategy of the game can be increased.

The degree of effect of each process included in the multiple types of calculation processes (e.g., the amount by which a parameter is changed) may change depending on the progress of the game. For example, if the game has a time limit, the degree of the effect may be increased in the latter half of the game when the time limit is approaching. However, even in this case, the effect control unit 32G executes different processes if the role assigned to the character P is different. As an example, a process for activating the effect of increasing the moving speed by an item is executed when the character P is assigned the first role, and is not executed when the character P is assigned the second role. Furthermore, the effect control unit 32G may execute a process for activating the same effect for some items that appear in the game before and after a different role is assigned. In other words, the effect of the item may not change even when a different role is assigned. Furthermore, the effect control unit 32G may execute a different process only when a different role is assigned when a specific condition is satisfied.

The multiple types of calculation processes may also include a process for activating an effect of a game element that is advantageous for achieving the victory condition. As an example, the effect activated by the process is an effect of increasing the parameters (e.g., movement speed) of the attacking character P2 assigned the role of attacking. As another example, the effect is an effect of decreasing the parameters (e.g., attack range) of the obstruction character P1 assigned the role of obstruction. The multiple types of calculation processes may also include a process for activating an effect of a game element that is disadvantageous for achieving the victory condition. As an example, the effect activated by the process is an effect of decreasing the parameters (e.g., movement speed) of the attacking character P2 assigned the role of attacking. As another example, the effect is an effect of increasing the parameters (e.g., attack range) of the obstruction character P1 assigned the role of obstruction.

The multiple types of calculation processes also include processing to activate an effect that is not applied to a character P assigned a first role (e.g., an attacking role). As an example, the effect in question is an effect used for attacking actions, and there is no situation in which the effect is applied to a character P assigned the attacking role, which does not perform attacking actions, even if the effect is activated. Alternatively, the multiple types of calculation processes include processing to activate an effect that is not applied to a character P assigned a second role (e.g., an obstruction role). As an example, the effect in question is an effect used for collecting collection elements CE, and there is no situation in which the effect is applied to a character P assigned the obstruction role, which does not collect collection elements CE, even if the effect is activated.

The multiple types of calculation processes further include processing to activate an effect that changes the parameters or state of character P. As an example, an effect that changes parameters is an effect that improves or decreases the parameters of character P (e.g., movement speed or attack range). Also, an effect that changes state is an effect that makes it difficult for character P to act (e.g., making character P immobile or inoperable). Alternatively, the multiple types of calculation processes include processing to activate an effect that places objects in the game field GF. As an example, the effect places obstacle objects, collectible elements CE, key objects KY, trap objects, objects that change parameters (e.g., movement speed), etc. in the game field GF.

Furthermore, the multiple types of computational processes may include multiple processes with different usage patterns of game elements. For example, the multiple types of computational processes may include a process in which character P uses an item by throwing it at an opponent, and a process in which character P uses an item by ingesting it himself. As an example, when a "poison mushroom" item is used by the attacking character P2, it is used by throwing it at the obstructing character P1. On the other hand, when used by the obstructing character P1, it is used by the obstructing character P1 ingesting the item, and an effect of increasing the parameters of the obstructing character P1 is activated.

As an example, the effect control unit 32G refers to a table to select the process to be executed. In this table, used element identification information that uniquely identifies a game element such as a used item or skill is associated with information that uniquely identifies the process to be executed. For example, the used element identification information is composed of a combination of role identification information (e.g., a role ID) that uniquely identifies the role assigned to the character P and element identification information (e.g., an element ID) that uniquely identifies the game element. Then, the effect control unit 32G specifies and executes the process to be executed by referring to the table using the used element identification information. Note that this table is included in the game data 33A and stored in the game machine storage unit 33.

Alternatively, the effect control unit 32G may identify the process to be executed by a combination of on and off flags that identify the roles. For example, when the first role is assigned, the flag is on. The effect control unit 32G then uses the element identification information of the used game element to identify the process to be executed when the flag is on. Similarly, when the second role is assigned, the flag is off. The effect control unit 32G then uses the element identification information of the used game element to identify the process to be executed when the flag is off.

The effect control unit 32G may also execute the first process or the second process based on the number of times the first role and the second role are switched. For example, the progress control unit 32D includes the number of times the role is switched after the game starts in the play data 33B and stores it in the game machine storage unit 33. Then, when a game element is used, the effect control unit 32G refers to the number of times the role is switched. Furthermore, the effect control unit 32G executes a process according to the number of times the role is switched from among multiple types of calculation processes.

For example, the effect control unit 32G executes processing so that the degree of effect of each process included in the multiple types of calculation processing (e.g., the amount by which a parameter is changed) changes according to the number of switching times. As an example, the degree of effect increases as the number of switching times increases. Specifically, when the number of switching times is two, the amount by which the parameter is changed increases compared to when the number of switching times is one. However, even in this case, the effect control unit 32G executes different processing if the role assigned to the character P is different. As an example, processing to activate the effect of increasing the movement speed by a certain item is executed when the character P is assigned the first role, but is not executed when the character P is assigned the second role.

As another example, the effect control unit 32G executes a process to activate a first effect when the number of switches is one. Furthermore, the effect control unit 32G executes a process to activate a second effect when the number of switches is two. Furthermore, the effect control unit 32G executes a process to activate a third effect when the number of switches is three. Therefore, the player can adjust the timing of using game elements while referring to the number of switches. This allows the activated effects to be different, providing more flexibility in the strategy for progressing through the game.

The notification unit 32H notifies the player of a change in the game element associated with the character P when the first role is switched to the second role. For example, the notification unit 32H causes the monitor 34 to display specific information such as an image, name, ID, and effect content that identifies the game element. Then, when the role is switched, the notification unit 32H causes the monitor 34 to display specific information of the game element corresponding to the switched role. In this way, since the specific information is different before and after the switch, the notification unit 32H can notify the player of the change in the game element.

Alternatively, the notification unit 32H may notify of the change in the game element by turning on or off an indicator indicating a specific game element, such as a lamp provided on the control panel 36. The notification unit 32H may also output specific information (e.g., the name) of the game element by sound from the speaker 35. The notification unit 32H may also notify all players of the change in the game element, or may notify only each player or players assigned the same role of the change in the game element.

The game element may be an item object B0 placed in the game field GF to be acquired by the character P. In this case, the notification unit 32H notifies the character P of an image or name of the item indicating the item object B0 that the character P has acquired. As an example, the notification unit 32H performs the notification by displaying the image or name of the item on the game screen. Note that if the item object B0 is a game element to be placed in the game field GF, the timing of acquisition may be before the start of the game. For example, an item object B0 indicating the same item as an item purchased by the player may be placed in the game field GF. In this case, if there is an item that has been acquired by purchase in advance, the notification unit 32H notifies the character P of an image or name of the item purchased before the start of the game, even if it has not been acquired during the game.

Furthermore, when switching from the first role to the second role, the notification unit 32H notifies the player of the change by changing the image or name of the item. For example, in the case of the above-mentioned "oil" game element, when the character P is assigned the role of attacking, the notification unit 32H causes an image meaning "slip" to be displayed on the monitor 34 as specific information of the game element. On the other hand, when the character P is assigned the role of obstruction, the notification unit 32H causes an image meaning "flamethrower" to be displayed on the monitor 34 as specific information of the game element. In this way, since the specific information differs before and after the switch, the notification unit 32H can notify the player of the change in the game element.

This allows the player to recognize that the type of game element they have acquired has changed in response to the change in their assigned role. For example, if a player acquires an item (e.g., "oil") while assigned the capture role, and then switches to the obstruction role, the display of the first item (e.g., "slip") changes to the display of the second item (e.g., "flame thrower"). The player therefore recognizes that the first item has changed to the second item. Then, when the player again switches from the obstruction role to the capture role, the display of the second item changes to the display of the first item. The player therefore recognizes that the second item has changed to the first item.

In this way, the item corresponding to the item object B0 placed in the game field GF is recognized as changing according to the role it plays after being acquired. Therefore, the player recognizes that the type of item changes and adjusts the timing of use, etc., making the game more complex and exciting, and broadening the range of strategies. Furthermore, by being notified of the change in game elements, the player can easily recognize which game element has changed into what game element. For example, when an image or name indicating a game element is displayed and changed, the player can visually recognize the change in the game element. Furthermore, when a name indicating a game element is changed and output as sound, the player can audibly recognize the change in the game element.

The reception unit 32J receives from the player a selection of an effect to be activated when the game element is used. The effect control unit 32G then executes a first process or a second process to activate the selected effect. For example, the reception unit 32J displays a selection of multiple effects on the monitor 34 before the game starts, when the game element is used, when the game element is acquired, etc.

The player then selects the desired effect from the options. The reception unit 32J receives the player's selection and stores process identification information that uniquely identifies the process that activates the selected effect in the game machine storage unit 33. Then, when a game element is used, the progress control unit 32D references the process identification information and executes the process specified by the process identification information from among multiple types of computational processes. This allows the player to develop a strategy for activating more advantageous effects during the game, and to reflect that strategy in the progress of the game.

The data for displaying the multiple options (e.g., image data of icons) is included in the game data 33A and stored in the game machine storage unit 33. Each of the multiple options may be an option that specifies an item. In this case, the effect to be activated and the process for activating the effect are specified by the identification information of the item selected by the player.

The lottery unit 32K draws a lottery for an effect to be activated when a game element is used. The effect control unit 32G then executes a first process or a second process to activate the drawn effect. For example, the lottery unit 32K randomly draws a lottery from among a plurality of effects before the start of the game, when a game element is used, or when a game element is acquired, etc., to determine the effect to be activated. The lottery unit 32K then stores process identification information that uniquely identifies the process that activates the effect determined by lottery in the game machine storage unit 33.

When a game element is used, the progress control unit 32D references the process identification information and executes the process specified by the process identification information from among multiple types of computational processes. This can bring about changes in the game situation that the player cannot predict. For example, it can bring about a change that turns an unfavorable situation around. This heightens the player's expectations and leads to more active use of the game element. The object of the lottery may be the identification information of an item. In this case, the effect to be activated and the process for activating that effect are specified by the determined item identification information.

The probability of winning may change depending on the progress of the game. For example, if there is a large difference in the amount of collectible elements CE collected, the probability of winning the specified item may be set high so that when a character P belonging to a group with a small amount of collection uses a game element, the specified item is more likely to be won. For example, the specified item is normally an item with a low probability of winning. By using the specified item, a more advantageous effect can be activated. Alternatively, the probability of winning the specified item may be set low so that when a character P belonging to a group with a large amount of collection uses a game element, the specified item is less likely to be won.

[Game screen]
Fig. 5 shows an example of a battle screen 40 displayed on the monitor 34 when the escape game is provided as a group battle type game. Fig. 5 also shows the battle screen 40 displayed to a player using an obstruction character P1. As shown in Fig. 5, the battle screen 40 includes a time area 41, a storage amount column 42, a map image 43, a character display column 44, a game field GF, and a life point column LP.

The game field GF is a space within the game that is set as the range of action of each character P. As an example, the game field GF is configured to correspond to the results of photography by a virtual camera installed under appropriate photography conditions at an arbitrary position in the virtual three-dimensional space. Furthermore, the game field GF is divided into four equal parts so that each part forms a square section. As an example, each of these sections is distinguished by a division line SL and identified by a different color scheme. As an example, each of the sections is used as the appearance position or starting position of the attacking character P2 at the start of the game. For example, each of the attacking characters P2 appears so as to be dispersed throughout each section.

In addition, objects such as an obstruction character P1, various obstacles B, a central stage 45, collectible elements CE, charge points CP, and a key object KY are placed in the game field GF. The number of each object placed in the game field GF can be set as desired. For example, in the example of FIG. 5, multiple collectible elements CE, two charge points CP1 and CP2, and one key object KY are placed.

Each charge point CP has an effect range CPa formed around the axis of the charge point CP, which is the range within which the effect of storing collectible elements CE is given. For example, the longer the capture character P2 (not shown in FIG. 5) remains in the effect range CPa, the greater the amount of stored collectible elements CE. In other words, the longer the character remains, the more collectible elements CE are transferred from the amount in possession to the amount stored.

A guard GR is placed around the key object KY. The guard GR is an object that prevents reaching the key object KY. The key object KY is set to be unreachable until the amount of accumulated elements in the charge point CP reaches a predetermined amount. Therefore, in the example of FIG. 5, the guard GR restricts movement from the key object KY to a predetermined range. The guard GR disappears when the amount of accumulated collectible elements CE reaches a predetermined amount. With the disappearance of the guard GR, the key object KY changes to a reachable state. When the capture character P2 performs an action to rotate the key object KY, an escape gate appears under the key object KY.

A possession amount gauge HA is also provided in association with the obstruction character P1. The possession amount gauge HA is a gauge for showing the amount of collectible elements CE possessed by the obstruction character P1. In the example of FIG. 5, three possession amount gauges HA, each showing a certain amount possessed, are displayed above the obstruction character P1's head. The color of each possession amount gauge HA gradually changes as the amount possessed increases. Similarly, a possession amount gauge is provided in association with the capture character P2. Alternatively, only the capture character P2 may be permitted to possess collectible elements CE.

The obstruction character P1 can steal collectible elements CE possessed by the attacking character P2. Even if the obstruction character P1 comes into contact with collectible elements CE, the obstruction character P1 cannot collect them. As an example, when the obstruction character P1 attacks the attacking character P2, the obstruction character P1 can steal a certain amount of collectible elements CE possessed by the attacked attacking character P2. In other words, a certain amount of the collectible elements possessed by the attacking character P2 is transferred to the obstruction character P1. In addition, the life points of the attacking group to which the attacked attacking character P2 belongs are reduced.

Obstacles B are objects that make it difficult for character P to take action, such as attacking or obstructing. For example, obstacles B include wall objects B1, pillar objects B2, and hill objects B3. For example, wall objects B1 and pillar objects B2 impede at least one of the actions of character P, namely running and jumping. Specifically, wall objects B1 and pillar objects B2 impede running so that character P cannot pass through, and impede jumping so that character P cannot jump over. Furthermore, hill object B3 impedes running by slowing down the movement speed on slopes.

The central stage 45 is an object that functions as the appearance or starting position of the obstruction character P1. For example, when a role is first assigned and when a role is switched, the obstruction character P1 appears at each starting position object 45A of the central stage 45. In the example of FIG. 5, the central stage 45 has a square top surface. The top surface of the central stage 45 is one step higher than the floor surface of the game field GF. Therefore, the central stage 45 has stairs to climb up to the top surface. The parts of the central stage 45 other than the stairs hinder running and jumping, and the stairs reduce the movement speed. As a result, the central stage 45 also functions as a type of obstacle B.

The time area 41 displays the remaining play time, which is "300" seconds in the example of FIG. 5. Alternatively, the time area 41 may display the time elapsed since the start of the game. The game end condition is met when the capture character P2 reaches the escape gate, but it is also met when the remaining time reaches zero. When the remaining time reaches zero, the game is determined to be a draw. Alternatively, when the remaining time reaches zero, the group that has collected the most may be determined to be the winner.

The storage amount column 42 shows the amount of collectible elements CE stored via charge points CP. The storage amount column 42 includes an ally column 42a showing the storage amount of the group to which the player belongs, and an opponent column 42b showing the storage amount of the opponent's group. The ally column 42a shows the cumulative storage amount of the group to which the player belongs. The opponent column 42b shows the cumulative storage amount of the opponent's group. As an example, the storage amount is displayed as a ratio of the storage amount to a predetermined amount, which is one of the victory conditions. In other words, when the storage amount ratio becomes "100.0%," it means that the storage amount has reached the predetermined amount. In the example of FIG. 5, "000.0%" is displayed as the ratio to the predetermined amount.

The life point column LP shows the value of life points associated with the group to which the capture character P2 belongs. The life points decrease each time an attack on the capture character P2 is successful. Alternatively, the life point column LP may show a value of life points that increases each time an attack is successful. The initial value of life points can be set arbitrarily, but in the example of FIG. 5, the life point column LP shows three life points.

The map image 43 is an image that generally represents the entire game field GF. Alternatively, the map image 43 may be an image that generally represents a portion of the game field GF. The map image 43 in the example of FIG. 5 is an image that generally represents the entire game field GF as viewed from above. The map image 43 also includes indicators that indicate the position of each object placed in the game field GF. In the example of FIG. 5, the indicators include a collectible element indicator 43a, a conquering character indicator 43b, an obstacle character indicator 43c, and an identification indicator 43d.

The collectible element indicator 43a indicates the position of the collectible element CE placed in the game field GF. The conquering character indicator 43b indicates the position of the conquering character P2 in the game field GF. The obstruction character indicator 43c indicates the position of the obstruction character P1 in the game field GF. The identification indicator 43d indicates the position in the game field GF of the character P (hereinafter also referred to as the user's character P) being controlled by the user playing the game device 31.

The attacking character indicator 43b may be displayed only on the monitor 34 of the game machine 31 played by the player who operates the attacking character P2. In other words, the attacking character indicator 43b may not be displayed on the monitor 34 of the game machine 31 played by the player who operates the obstruction character P1. The obstruction character indicator 43c may be displayed only on the monitor 34 of the game machine 31 played by the player who operates the obstruction character P1. In other words, the obstruction character indicator 43c may not be displayed on the monitor 34 of the game machine 31 played by the player who operates the obstruction character P2.

Furthermore, item objects B0 corresponding to items are placed in the game field GF. When used, these items activate effects that affect the parameters (e.g., movement speed) or actions of the character P. These effects may include detrimental effects to the progress of the game in addition to beneficial effects. These items are used in response to the player's operation (e.g., pressing a specific button). By coming into contact with the item object B0, the player's character P can obtain the item corresponding to the item object B0.

The character display columns 44 show information about each character P. In the example of FIG. 5, six character display columns 44 are provided, each corresponding to a total of six characters P. Furthermore, the character display columns 44 include a name area CA1 that displays a character string such as "Player A" as information about the name of the player who controls each character P. Furthermore, the character display columns 44 include an image area CA2 that displays an image of each character P.

The character display area 44S corresponding to the player's character P is displayed larger so as to be distinguished from the other character display areas 44. Specifically, the image area CA2 of the character display area 44S is displayed larger so that the entire body of the character P is displayed. In addition, the name area CA1 of the character display area 44S contains the character string "Player C" as information on the player's name.

Furthermore, the character display section 44S includes a display area GA in which information on game elements associated with the player's character P is displayed. In the display area GA, information on game elements such as items and skills that activate effects advantageous to the progress of the game is displayed. The display area GA includes an information section GA1 in which images, names, IDs, effects, situations, and contents of game elements are displayed. In the example of FIG. 5, the player's character P has acquired "oil" as an item corresponding to the item object B0. As described above, when the obstruction character P1 uses the "oil" item, a process is executed to activate an effect that allows remote attacking actions to be performed. Therefore, the character string "Flamethrower" indicating the name of the item acquired by the player's character P is displayed in the information section GA1. Alternatively, the character string "oil" may be displayed in the information section GA1.

Information unit GA1 may display an image showing an item or a skill gauge. The skill gauge increases over time or as game elements are acquired, and the player becomes able to use a skill when the skill gauge reaches its maximum. A skill may be used by the player's operation, or a skill may be used automatically when the skill gauge reaches its maximum.

[Activation process flow]
The process of activating an effect by using a game element will be described with reference to FIG. 6. First, the role switching unit 32E executes a lottery game in which roles are randomly selected by coin toss. Then, the role switching unit 32E assigns the roles determined by the lottery game to each group (S101). Next, the range setting unit 32B presents the game field GF through the battle screen 40 (S102). Specifically, the range setting unit 32B displays the game field GF on the battle screen 40 as a result of a virtual camera capturing an image of a virtual three-dimensional space constructed in advance.

Then, the progress control unit 32D starts the game and progresses the game in accordance with the player's operations. During the game, when the character P comes into contact with an item object B0 placed in the game field GF, a game element (hereinafter simply referred to as an item) is acquired (YES in S103). Then, the association unit 32F associates the character P with the item (S104). On the other hand, if the item has not been acquired (NO in S103), the progress control unit 32D proceeds with the process.

If the progress control unit 32D has not received an operation to use an item (NO in S105), it proceeds with the process. On the other hand, if the progress control unit 32D receives an operation to use an item (YES in S105), the effect control unit 32G executes a process from among multiple types of calculation processes according to the assigned role and the item used, and activates the effect of the item (S106). The progress control unit 32D then progresses the game so that the activated effect is reflected.

Furthermore, when a predetermined switching condition is met (YES in S107), the role switching unit 32E switches the role of the character P from the first role to the second role (S108). Then, the progress control unit 32D progresses the game with the role switched. After that, when the progress control unit 32D receives an operation to use an item (YES in S105), the effect control unit 32G executes a process from among multiple types of calculation processing according to the role assigned after the switch and the item used, and activates the effect of the item. Here, when the same item is used, the effect control unit 32G executes a process from among multiple types of calculation processing that is different from the process selected before the switch. Then, the effect control unit 32G activates the effect of the item according to the different process (S106). Furthermore, the progress control unit 32D progresses the game so that the activated effect is reflected.

If the specified switching condition is not met (NO in S107), the progress control unit 32D continues the game. If the victory condition is met (YES in S109), the progress control unit 32D ends the game. On the other hand, if the victory condition is not met (NO in S109), the progress control unit 32D continues the game.

According to the game system 100 according to the embodiment described above, it is possible to differentiate the processing applied when a certain role is assigned from the processing applied when another role is assigned. Therefore, effects appropriate to the role can be activated, and game elements can be used effectively regardless of the assigned role. Furthermore, when game elements are placed in the game field GF, the placement of the game elements will not be unilaterally advantageous or disadvantageous to any one role. Therefore, game design is not restricted, and the degree of freedom in game design can be increased. Furthermore, since items can be used in a manner according to the assigned role, the range of ways in which items can be used is expanded, and the interest and strategy of the game can be increased.

Although the present invention has been described above with reference to each embodiment, the present invention is not limited to the above-mentioned embodiments. Inventions modified without violating the present invention, and inventions equivalent to the present invention, are also included in the present invention. Furthermore, each embodiment and each modified form, and the technical means included in each embodiment or each modified form, can be appropriately combined without violating the present invention.

For example, at least one of the role switching unit 32E, the association unit 32F, the effect control unit 32G, the notification unit 32H, the reception unit 32J, and the lottery unit 32K may be provided in the server 20. In this case, the server control unit 22 of the server 20 and the game machine control unit 32 of the game machine 31 work together to function as a computer.

A part or all of the above-described embodiments may be described as, but are not limited to, the following notes. In order to facilitate understanding of each aspect, the reference symbols shown in the attached drawings are used. However, the reference symbols are not intended to limit the present invention to the illustrated forms.

(Appendix 1)
A game system 100 for providing a game in which a first role and a second role are assigned to a plurality of characters P moving in a game field GF,
a role switching means for switching the role of the character from the first role to the second role when a predetermined switching condition is satisfied;
an association means 32F for associating a game element usable in the game with the character;
and an effect control means (32G) for activating the effect of the game element in accordance with a first process included in multiple types of pre-set calculation processes when the game element is used with the first role assigned to the character, and for activating the effect of the game element in accordance with a second process included in the multiple types of calculation processes and different from the first process when the game element is used with the second role assigned to the character.

(Appendix 2)
The first role is a role of attacking to achieve the victory condition, and the second role is a role of obstructing the achievement of the victory condition,
In the game, the character assigned the role of attacking and the character assigned the role of obstructing compete to achieve the victory condition,
The game system described in Appendix 1, wherein the role switching means 32E switches from the disruptive role to the attacking role, or switches from the attacking role to the disruptive role, when the switching condition is satisfied.

(Appendix 3)
The game system described in Appendix 2, wherein the multiple types of calculation processing include processing for activating effects of the game elements that are advantageous to the achievement of the victory condition, and processing for activating effects of the game elements that are disadvantageous to the achievement of the victory condition.

(Appendix 4)
A game system described in any one of appendices 1 to 3, further comprising a notification means 32H that notifies of a change in the game element associated with the character when the first role and the second role are switched.

(Appendix 5)
the game element is an item object B0 that is placed on the game field to be acquired by the character;
The game system described in Appendix 4, wherein the notification means 32H notifies the image or name of an item indicating the item object, and when switching from the first role to the second role, notifies the change by changing the image or name of the item.

(Appendix 6)
a receiving means for receiving, from a player, a selection of the effect to be activated when the game element is used;
6. The game system according to any one of claims 1 to 5, wherein the effect control means 32G executes the first process or the second process so as to activate the selected effect.

(Appendix 7)
The game device further includes a lottery means 32K for selecting the effect to be activated when the game element is used,
6. A game system according to any one of appendices 1 to 5, wherein the effect control means 32G executes the first process or the second process so as to activate the effect selected by lottery.

(Appendix 8)
A game system described in any one of Appendices 1 to 5, wherein the effect control means 32G executes the first process or the second process based on the number of times the first role and the second role are switched.

(Appendix 9)
A collection element CE that can be collected by the character is placed in the game field GF,
3. The game system according to claim 2, wherein the winning condition includes that the amount of collected elements accumulated reaches a predetermined amount.

(Appendix 10)
The character P to which the first role is assigned is an escape character,
the character P to which the second role is assigned is a pursuit character that pursues the escaping character,
The game system according to any one of appendices 1 to 9, wherein the role switching means 32E switches from the first role to the second role when the number of successful actions taken by the pursuit character against the escaping character reaches a predetermined number, assuming that the switching condition is satisfied.

(Appendix 11)
A game in which a first role and a second role are assigned to a plurality of characters P moving in a game field GF is provided, and a computer program PG2 of a game system 100 including a computer 32 is provided,
The computer includes:
When a predetermined switching condition is satisfied, switching the role of the character from the first role to the second role;
Associating the character with game elements that can be used in the game;
A computer program which, when the game element is used while the first role is assigned to the character, activates the effect of the game element in accordance with a first process included in multiple types of pre-set calculation processes, and, when the game element is used while the second role is assigned to the character, activates the effect of the game element in accordance with a second process included in the multiple types of calculation processes and different from the first process.

(Appendix 12)
A game in which a first role and a second role are assigned to a plurality of characters P moving in a game field GF, and a control method for a game system 100 including a computer 32, comprising:
The computer includes:
When a predetermined switching condition is satisfied, switching the role of the character from the first role to the second role;
Associating the character with game elements that can be used in the game;
A control method, when the game element is used while the first role is assigned to the character, the effect of the game element is activated according to a first process included in multiple types of pre-set calculation processes, and when the game element is used while the second role is assigned to the character, the effect of the game element is activated according to a second process included in the multiple types of calculation processes and different from the first process.

According to the game system described in Supplementary Notes 1 to 3, the computer program described in Supplementary Note 11, and the control method described in Supplementary Note 12, it is possible to differentiate the processing applied when a certain role is assigned from the processing applied when another role is assigned. Therefore, it is possible to activate an effect appropriate to the role, and therefore it is possible to effectively use game elements regardless of the assigned role.

According to the game systems described in Supplementary Notes 4 and 5, by notifying the player of changes in game elements, the player can easily recognize which game element has changed to which game element. Furthermore, according to the game system described in Supplementary Note 6, the player can devise a strategy to activate more advantageous effects during the game, and can reflect that strategy in the progress of the game. Furthermore, according to the game system described in Supplementary Note 7, it is possible to bring about changes in the game situation that the player cannot predict. This increases the player's expectations and leads to more active use of game elements.

According to the game system described in Supplementary Note 8, by adjusting the timing of using game elements, it is possible to vary the activated effects and provide a wider range of strategies for progressing through the game. Furthermore, according to the game systems described in Supplementary Note 9 and 10, it is possible to activate effects suited to roles, so that game elements can be used effectively regardless of the assigned role.

32: Game machine control unit (computer)
32E: Role switching unit (role switching means)
32F: Association unit (association means)
32G: Effect control unit (effect control means)
32H: Notification section (notification means)
32J: Reception unit (reception means)
32K: Lottery section (lottery means)
100: Game system B0: Item object (game element)
CE: Collection element GF: Game field P: Character PG2: Game program (computer program)

Claims (12)

A game system for providing a game in which a first role and a second role are assigned to a plurality of characters moving on a game field,
a role switching means for switching the role of the character from the first role to the second role when a predetermined switching condition is satisfied;
an association means for associating a game element usable in the game with the character;
and an effect control means for, when the game element is used with the first role assigned to the character, activating the effect of the game element in accordance with a first process included in multiple types of pre-set calculation processes, and, when the game element is used with the second role assigned to the character, activating the effect of the game element in accordance with a second process included in the multiple types of calculation processes and different from the first process. The first role is a role of attacking to achieve the victory condition, and the second role is a role of obstructing the achievement of the victory condition,
In the game, the character assigned the role of attacking and the character assigned the role of obstructing compete to achieve the victory condition,
The game system according to claim 1 , wherein the role switching means switches from the obstruction role to the attacking role, or switches from the attacking role to the obstruction role, when the switching condition is satisfied. The game system of claim 2, wherein the multiple types of computational processes include a process for activating effects of the game elements that are advantageous to achieving the victory condition, and a process for activating effects of the game elements that are disadvantageous to achieving the victory condition. The game system of claim 1, further comprising a notification means for notifying a change in the game element associated with the character when the first role and the second role are switched. the game element is an item object that is placed on the game field to be acquired by the character;
5. The game system according to claim 4, wherein the notification means notifies an image or name of an item representing the item object, and, when switching from the first role to the second role, notifies the change by changing the image or name of the item. a receiving means for receiving from a player a selection of the effect to be activated when the game element is used,
The game system according to claim 1 , wherein the effect control means executes the first process or the second process so as to activate the selected effect. The game device further includes a lottery means for selecting the effect to be activated when the game element is used,
The game system according to claim 1 , wherein the effect control means executes the first process or the second process so as to activate the effect selected by lottery. The game system according to any one of claims 1 to 5, wherein the effect control means executes the first process or the second process based on the number of times the first role and the second role are switched. A collectable element that can be collected by the character is disposed in the game field;
3. The game system according to claim 2, wherein the winning condition is that the amount of the collected elements accumulated reaches a predetermined amount. the character assigned the first role is an escape character;
the character assigned the second role is a pursuit character that pursues the escaping character;
The game system according to any one of claims 1 to 5, wherein the role switching means switches from the first role to the second role when the number of successful actions taken by the pursuit character against the escaping character reaches a predetermined number, determining that the switching condition is satisfied. A game in which a first role and a second role are assigned to a plurality of characters moving on a game field is provided, and a computer program for a game system including a computer is provided,
The computer includes:
When a predetermined switching condition is satisfied, switching the role of the character from the first role to the second role;
Associating the character with game elements that can be used in the game;
A computer program which, when the game element is used while the first role is assigned to the character, activates the effect of the game element in accordance with a first process included in multiple types of pre-set calculation processes, and, when the game element is used while the second role is assigned to the character, activates the effect of the game element in accordance with a second process included in the multiple types of calculation processes and different from the first process. A game in which a first role and a second role are assigned to a plurality of characters moving on a game field, and a control method for a game system including a computer, comprising:
The computer includes:
When a predetermined switching condition is satisfied, switching the role of the character from the first role to the second role;
Associating the character with game elements that can be used in the game;
A control method, when the game element is used while the first role is assigned to the character, the effect of the game element is activated according to a first process included in multiple types of pre-set calculation processes, and when the game element is used while the second role is assigned to the character, the effect of the game element is activated according to a second process included in the multiple types of calculation processes and different from the first process.

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