JP6757376B2 - Transferring game data between different platforms - Google Patents

Description

The disclosure herein relates to the transfer of game data between different platforms.

Games with the same title may be offered on multiple different platforms. For example, a game with the same title may be offered on both a smartphone version and a personal computer (PC) version. The smartphone version of the game is provided on the smartphone platform, and the PC version of the game is provided on the PC platform.

As the game progresses, game data is accumulated for each user. However, the game data accumulated through game play on one platform is not available from other platforms. For example, the game data accumulated by executing a game on a smartphone platform cannot be used from a game executed on a PC platform.

There is a need to continue playing the same game on a different platform than the one you are using. For example, when a user buys a new electronic device used for game play, wants to play a game played on a PC on a smartphone, or wants to play a game played on a smartphone on a PC, etc. There is a need to play the game on a new platform instead of the one on the platform.

In order to meet such needs, it is necessary to transfer the game data accumulated on the platform being used to the newly used platform. The conventional game data transfer is performed by issuing a transfer code for transferring the game data on the migration source platform and accepting the input of the transfer code on the migration destination platform. The takeover code is usually a string of numbers of approximately 5 to 10 digits. The following Non-Patent Document 1 describes a method of taking over game data using a takeover code issued from the migration source platform.

Another example of the prior art for inheriting game data is disclosed in Japanese Patent Application Laid-Open No. 2017-213392 (Patent Document 1). Patent Document 1 discloses a method of taking over game data from another game device associated with the same account as the own device by using the data managed by the access point for constructing the wireless LAN. ..

Japanese Unexamined Patent Publication No. 2017-21392

"Notice Yu-Gi-Oh! Duel Links", [online], Searched on March 5, 2018, Internet (URL: https://www.konami.com/yugioh/duel#links/ja/notice/1/)

Conventionally, game data can be inherited only when a unified user account is used on the migration source and migration destination platforms. Until now, there is no known method for transferring game data between two platforms where user accounts are not unified.

Even if different user accounts are used on the migration source platform and the migration destination platform, it is desirable to enable the transfer of game data between these platforms.

An object of the present disclosure is to provide technical improvements that solve or alleviate at least some of the problems of the prior art described above. One of the more specific purposes of the present disclosure is to enable the transfer of game data between two platforms where different user accounts are used.

One aspect of the invention is to identify the user from a first platform on which the first user identification information is used to identify the user by executing a computer-readable instruction by one or more computer processors. The present invention relates to a method of transferring the game data of the user on the first platform, which is stored in association with the first user identification information, to the second platform in which the second user identification information is used. The method according to one aspect includes a step of encoding identification data including the second user identification information on the second platform to generate an identification code, and the second user identification information and the second user identification information included in the identification code. The game data is specified based on the step of generating the link data associated with the 1 user identification information and the second user identification information and the link data, and the game data is used for the second client device. It includes a process of providing a game.

In one aspect of the present invention, a step of storing migration status information indicating whether or not the migration of the game data from the first platform to the second platform is completed is further provided.

In the method according to one aspect of the present invention, a completion notification is sent to the second platform according to the association between the second user identification information included in the identification code and the first user identification information. It further includes a transmission process for transmission. In the method according to one aspect of the present invention, in the step of storing the migration status information, the migration of the game data as the migration status information is completed in response to the completion notification being received by the second platform. Set a value that indicates that you have done so.

In a method according to one aspect of the invention, the identification code is further generated to include a nonce, and the completion notification is generated to include a nonce included in the identification code received from the first client device, said transition status. In the step of storing the information, when the completion notification is determined to be valid by using the nonce included in the completion notification, a value indicating that the transfer of the game data is completed is used as the transition status information. Set.

The method according to one aspect of the present invention further comprises a step of initiating the game in the second client device in response to the completion notification being received on the second platform.

In one aspect of the invention, the identification code is an optically readable code.

In one aspect of the present invention, the identification code is displayed on the display of the second client device.

In one aspect of the present invention, when the identification data is digitally signed and the identification data is determined to be valid by using the public key in the step of generating the link data, the above-mentioned identification data is described. The second user identification information included in the identification code and the first user identification information are associated with each other.

In one aspect of the present invention, the identification code further includes expiration date information indicating an expiration date, and in the step of generating the link data, when the expiration date included in the identification code has not passed. , The second user identification information included in the identification code is associated with the first user identification information.

In one aspect of the present invention, the identification code further includes an issuer name indicating the issuer, and the issuer name included in the identification code is valid in the step of generating the link data. In this case, the second user identification information included in the identification code and the first user identification information are associated with each other.

One aspect of the invention is a second user identification to identify the user from a first platform on which the first user identification information is used to identify the user by being executed by one or more computer processors. The present invention relates to a program for transferring game data of the user on the first platform, which is stored in association with the first user identification information, to a second platform on which the information is used. The program includes a step of encoding identification data including the second user identification information on the second platform on the one or more computer processors to generate an identification code, and the first step included in the identification code. 2 A step of generating link data for associating the user identification information with the first user identification information, and specifying the game data based on the second user identification information and the link data, and for the second client device. The process of providing a game using the game data is executed.

One aspect of the invention is from a first platform where the first user identification information is used to identify the user to a second platform where the second user identification information is used to identify the user. The present invention relates to a system for inheriting game data on the first platform. The system includes one or more processors and storage that stores game data of the user on the first platform in association with the first user identification information. The one or more computer processors encode identification data including the second user identification information on the second platform to generate an identification code by executing a computer-readable instruction, and the identification code is generated. The link data for associating the second user identification information and the first user identification information included in the second user identification information is generated, the game data is specified based on the second user identification information and the link data, and the second client A game is provided to the device using the game data.

Embodiments of the present invention allow the transfer of game data between two platforms that use different user accounts.

It is a block diagram which shows the game processing system by one Embodiment. It is a figure explaining the information stored in the game processing system of FIG. It is a figure explaining the information stored in the game processing system of FIG. It is a figure explaining the information stored in the game processing system of FIG. It is a figure explaining the information stored in the game processing system of FIG. It is a sequence diagram for demonstrating the processing in the game processing system by one Embodiment. It is a schematic diagram which shows the example of the display image displayed by the client apparatus included in the game processing system by one Embodiment. It is a schematic diagram which shows the example of the identification code displayed by the client apparatus included in the game processing system by one Embodiment.

Hereinafter, various embodiments of the present invention will be described with reference to the drawings as appropriate. The same or similar components are designated by the same reference numerals in a plurality of drawings.

A game processing system 1 according to an embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a block diagram showing a game processing system 1 according to an embodiment, and FIGS. 2 to 5 are diagrams for explaining information stored in the game processing system of FIG. 1, respectively.

As shown in the figure, the game processing system 1 according to the embodiment of the present invention includes a platform 1A, a client device 10 using the platform 1A, a platform 1B, a client device 20 using the platform 1B, and a storage 100. Be prepared. The client device 10 is an example of the first client device, and the client device 20 is an example of the second client device. In the present specification, it is assumed that the client device 10 and the client device 20 are used by the same user A.

Platform 1A includes a platform server device 30 and a game server device 50. Platform 1A is an example of a first platform. Platform 1B includes a platform server device 40 and a game server device 60. Platform 1B is an example of a second platform.

The client device 10, the client device 20, the platform server device 30, the platform server device 40, the game server device 50, the game server device 60, and the storage 100 are connected to each other so as to be able to communicate with each other via the network 5. The network 5 may be a single network, or may be configured by connecting a plurality of networks. The network 5 is, for example, the Internet, a mobile communication network, and a combination thereof. As the network 5, any network that enables communication between electronic devices can be applied.

In the illustrated embodiment, the client device 10 is a smartphone and the client device 20 is a personal computer (PC). In addition to the smartphone, the client device 10 may be a mobile phone, a tablet terminal, a personal computer, an electronic book reader, a wearable computer, a game console, a head mount display, and various other information processing devices. It should be noted that the client device 20 may be a smartphone, a mobile phone, a tablet terminal, an electronic book reader, a wearable computer, a game console, a head mount display, and various other information processing devices in addition to the PC. .. In the following description, for the sake of brevity of description, an exemplary embodiment in which the client device 10 is a smartphone and the client device 20 is a PC will be described.

The platform server device 30 is a server device for providing the first platform service to the client device, and the platform server device 40 is a server device for providing the second platform service to the client device. is there. The first platform service provided by the platform server device 30 and the second platform service provided by the platform server device 40 include, for example, a game platform service, an application software download service, a payment service, a video distribution service, and other services. Communication services for interacting with users, and various network services other than these. When the platform server device 30 provides the game platform service, the platform server device 30 has link information to a plurality of games, and provides the link information to the client device 10 that has accessed the platform server device 30. can do. The user can start playing the game by selecting the link information to the desired game by inputting the operation to the client device 10.

The platform server device 30 and the platform server device 40 may be configured to provide platform services for a particular type of client device or a particular type of client application. For example, the platform server device 30 and the platform server device 40 provide a first platform service to a target client device selected from a smartphone, a tablet, a PC, a specific game console, and a specific client device other than these. The first platform service may not be provided to client devices other than the target client device. In another example, the platform server device 30 and the platform server device 40 are specified in a specific operating environment (eg, iOS ™, Android ™, Windows ™, Mac OS ™, or any other specification. The first platform service is provided to the target client device that has the operating system or application software of the above, and the first platform service is provided to the client device that does not have this specific operating environment (client device other than the target client device). It may be configured not to provide platform services.

In the illustrated embodiment, since the client device 10 is a smartphone, the platform server device 30 is a platform server device for smartphones configured to provide a first platform service to the smartphone. Further, since the client device 20 is a PC, the platform server device 40 is a platform server device for a PC configured to provide a second platform service to the PC. In this case, even if the platform server device 30 receives an account registration request from a device other than the smartphone (for example, a PC), the platform server device 30 does not provide the platform service in response to the request. A user who intends to receive the first platform service from the platform server device 30 accesses the platform server device 30 via a smartphone. Similarly, even if the platform server device 40 receives an account registration request from a device (for example, a smartphone) other than the PC to which the service is provided, the platform server device 40 does not provide the platform service in response to the request. A user who intends to receive the second platform service from the platform server device 40 accesses the platform server device 40 via a PC.

A user who intends to receive the provision of the first platform service from the platform server device 30 registers an account for the first platform service. The user can receive the first platform service from the platform server device 30 by registering an account for the first platform service. For this account registration, the user provides predetermined user information (for example, user name, e-mail address, and age) to the platform server device 30 via the client device 10. When the registration of the account for using the first platform service is completed, the user is assigned the user identification information for identifying the user in the first platform service. In the present specification, the user identification information assigned to receive the provision of the first platform service may be referred to as the first user identification information or the first user ID.

A user who intends to receive the provision of the second platform service from the platform server device 40 registers an account for the second platform service. The user can receive the second platform service from the platform server device 40 by registering an account for the second platform service. For this account registration, the user provides predetermined user information (for example, a user name, an e-mail address, and an age) to the platform server device 40 via the client device 20. When the registration of the account for using the second platform service is completed, the user is assigned the user identification information for identifying the user in the second platform service. In the present specification, the user identification information assigned to receive the provision of the second platform service may be referred to as a second user identification information or a second user ID.

A user to whom the first user ID is assigned can access the platform server device 30 via the client device 10 and log in using the first user ID and password to receive the provision of the first platform service. it can. Similarly, the user to whom the second user ID is assigned accesses the platform server device 40 via the client device 20 and logs in using the second user ID and password to provide the second platform service. Can receive.

Although only one client device 10 is shown in FIG. 1, the number of client devices 10 included in the platform 1 is arbitrary. Similarly, the number of client devices 20 included in platform 2 is arbitrary. That is, the platform 1 may include a plurality of client devices 10, and each of the plurality of client devices 10 can receive the provision of the first platform service from the platform server device 30. Similarly, the platform 2 may include a plurality of client devices 20, and each of the plurality of client devices 20 can receive the second platform service from the platform server device 40.

The game server device 50 is configured to provide an online game service to the client device 10. The client device 10 can receive the online game service from the game server device 50 by logging in using the first user ID. For example, the game server device 50 realizes a predetermined game logic (or the game logic) for a game message received from the client device 10 (for example, a message related to the operation of the player character, a message that the user wants to start a quest). The game is advanced by processing according to the program) and transmitting the processing result to the client device 10. Similarly, the game server device 60 is configured to provide an online game service to the client device 20. The client device 20 can receive the online game service from the game server device 60 by logging in using the second user ID. The game provided by the game server device 50 and the game provided by the game server device 60 may be smartphone versions and PC versions of games of the same title, respectively. The function of the game server device 50 and the function of the game server device 60 may be provided by one game server device.

The game server device 50 and the game server device 60 realize various games. A game medium may be used in the game provided by the game server device 50 and the game server device 60. The game medium is electronic data used in the game, which may be acquired, owned, used, managed, exchanged, synthesized, enhanced, sold, discarded, or gifted by the user, or used in a manner other than the above. Game media include, for example, cards, items, virtual currencies, tickets, characters, avatars, level information, status information, parameter information (health value, attack power, etc.), ability information, skills, abilities, spells, jobs, and others. Includes various electronic data available in the game. The game medium and its usage mode that can be used in the game processing system 1 are not limited to those specified in this specification.

The client device 10 includes a processor 11, a communication I / F 12, a display 13, and a storage 14. The client device 20 includes a processor 21, a communication I / F 22, a display 23, and a storage 24.

The platform server device 30 includes a processor 31, a communication I / F 32, and a storage 33. The platform server device 40 includes a processor 41, a communication I / F 42, and a storage 43.

The game server device 50 includes a processor 51, a communication I / F 52, and a storage 53. The game server device 60 includes a processor 61, a communication I / F 62, and a storage 63.

The processors 11,21,31,41,51,61 are arithmetic units that load an operating system and various programs into memory and execute instructions included in the loaded programs. The computer processors 11,21,31,41,51,61 are, for example, a CPU, an MPU, a DSP, a GPU, various arithmetic units other than these, or a combination thereof. The processor 11 may be realized by an integrated circuit such as an ASIC, PLD, FPGA, or MCU.

The communication I / F 12, 22, 32, 42, 52, 62 are implemented as hardware, firmware, communication software such as a TCP / IP driver or a PPP driver, or a combination thereof. The client device 10, the client device 20, the platform server device 30, the platform server device 40, the game server device 50, and the game server device 60 are other devices via communication I / F 12, 22, 32, 42, 52, 62. And data can be sent and received.

The displays 13 and 23 are a liquid crystal display, an organic EL display, or any information display device capable of displaying an image other than these. The displays 13 and 23 may have a touch panel capable of detecting a player's touch operation (contact operation).

The storages 14, 24, 34, 44, 54, 64 are, for example, magnetic disks, optical disks, semiconductor memories, or various storage devices other than those capable of storing data.

Various programs such as a game processing program are stored in the storages 14 and 24. Further, various data used in the game may be stored in the storages 14 and 24.

The storage 33 stores information necessary for providing the first platform service, and the storage 43 stores information necessary for providing the second platform service. The information required to provide the first platform service includes, for example, the account information of the user who has registered an account, the video data to be distributed to the registered user, and the payment information necessary for the registered user to make a payment ( For example, information about the user's credit card) and various other information necessary for providing the first platform service are stored. The information required to provide the second platform service is the same as the information required to provide the first platform service.

The storage 43 further stores the migration data 43a related to the migration process of the game data from the other platform to the platform 1B. An example of the migration data 43a is shown in FIG. As shown in the figure, the migration data 43a includes account information on platform 1B of user A who migrates game data, determination information for determining whether or not the link notification described later is valid, and game data to platform 1B. Migration status information indicating whether or not the migration of the above has been completed, and other information may be included. In this way, the storage 43 can store determination information, migration status information, and information other than these in association with the account information of the user requesting the migration of the game data. The account information is, for example, user identification information (second user ID) of a user on platform 1B. The determination information is, for example, a nonce for preventing a replay attack. The migration status information is, for example, binary flag information. This flag information indicates, for example, that the game data transfer process is completed when the value is "1", and that the game data transfer process is not completed when the value is "0".

The storage 53 may store a program for executing the game logic, asset data, and various data necessary for providing the game other than these. The storage 63 may store a program for executing the game logic, asset data, and various data necessary for providing the game other than these.

The storage 100 stores game data 101 used in the game provided by the game server device 50 on platform 1A, game data 102 used in the game provided by the game server device 60 on platform 1B, and link data 103. To.

An example of game data 101 is shown in FIG. As shown in the figure, the game data 101 of the user A is stored in the storage 100 in association with the account information of the user A on the platform 1A (for example, the first user ID of the user A). The game data 101 may be written and read by the game server device 50.

An example of game data 102 is shown in FIG. As shown in the figure, the game data 102 of the user A is stored in the storage 100 in association with the account information of the user A on the platform 1B (for example, the second user ID of the user A). The game data 102 may be written and read by the game server device 60.

The game data 101 includes data indicating game items acquired by user A in the game provided by the game server device 50, data indicating points and virtual currency acquired by user A in the game, and quests cleared in the game. Data indicating the above, and various other data used for managing the progress of the game may be included. Similarly, the game data 102 includes data indicating a game item acquired by the user A in the game provided by the game server device 60, data indicating points and virtual currency acquired by the user in the game, and data cleared in the game. Data indicating the quests of the above, and various other data used to manage the progress of the game may be included. The game data stored in the storage 100 may be accessible from a game server device that provides a game in which the game data is used, but may be inaccessible from other devices. For example, the game data 101 may be accessible from the game server device 50, but may be inaccessible from other devices. The game data 102 may be accessible from the game server device 60, but may be inaccessible from other devices.

At least a part of the game data 101 stored in the storage 100 may be stored in the storage 53 of the game server device 50. Similarly, at least a part of the game data 102 stored in the storage 100 may be stored in the storage 63 of the game server device 60.

An example of the link data 103 is shown in FIG. As shown in the figure, the link data 103 includes migration source account information on the migration source platform and migration destination account information on the migration destination platform. In the link data 103, the migration source account information is associated with the migration destination account information. FIG. 5 shows an example of link data 103 in an embodiment in which game data is transferred from platform 1A to platform 1B. The migration source account information in FIG. 5 is the user identification information (first user ID) of the user A on the migration source platform 1A, and the migration destination account information is the user identification information (first user ID) of the user A on the migration destination platform 1B. 2 user ID).

Subsequently, the functions of each device constituting the game processing system 1 will be described. First, the functions of the platform server device 30 and the platform server device 40 will be described. The processor 31 of the platform server device 30 is configured to execute various functions (payment function, etc.) related to the first platform service by executing a computer-readable instruction. Similarly, the processor 41 of the platform server device 40 is configured to execute various functions (payment function, etc.) related to the second platform service by executing a computer-readable instruction.

The processor 41 of the platform server device 40 is configured to further function as a code generation unit 41a and a determination unit 41b by executing a computer-readable instruction.

In one embodiment, the code generation unit 41a generates an identification code based on a request (identification code request) from the client device 20, and transmits the generated identification code to the client device 20. This identification code is generated by encoding the identification data by a predetermined coding method. This identification data includes user identification information (second user ID) on platform 1B of user A who is using the client device 20 that has transmitted the identification code request. The identification code may be, for example, an optically readable code. The identification code may be a QR code (registered trademark). As is well known, the QR code is a matrix type two-dimensional code. In this specification, an embodiment in which a QR code is used as an identification code will be mainly described. However, the QR code is an example of an identification code, and various optically readable codes other than the QR code and other codes may be used as the identification code of the present invention.

The identification data encoded by the code generation unit 41a includes the user identification information (second user ID) on the platform 1B of the user A who requested the issuance of the identification code, and the issuer name of the identification code (for example, the platform). The name of the server device 40), the expiration date of the identification code, the replay attack countermeasure parameter (for example, nonce), and at least one of other information may be included.

In one embodiment, the code generation unit 41a generates a token with an electronic signature by signing the identification data with a private key, and encodes the generated token to generate a QR code. This token may be, for example, a token in the form of JWT (JSON Web Token).

The determination unit 41b determines whether or not the link processing for transferring the game data to the platform 1B has been completed based on the link notification described later. When the determination unit 41b determines that the migration process is completed, the determination unit 41b updates the migration status information of the migration data 43a. When the migration status information is binary flag information, this flag information is set to "1" indicating that the game data migration process is completed according to the completion of the migration process.

Next, the functions of the client device 10 and the client device 20 will be described. In the illustrated embodiment, the processor 11 of the client device 10 functions as a game progress unit 11a, a code reading unit 11b, and a takeover request unit 11c by executing a computer-readable instruction. The processor 21 of the client device 20 functions as a game progress unit 21a and a code output unit 21b by executing a computer-readable instruction.

The game progress unit 11a advances the game in response to an operation input from the user via the input mechanism (for example, the touch panel) of the client device 10. Similar to the game progress unit 11a, the game progress unit 21a advances the game in response to an operation input from the user. The operation input from the user is, for example, an input for designating the action of the player character.

The code output unit 21b of the client device 20 displays the QR code received from the platform server device 40 on the display 23.

The code reading unit 11b of the client device 10 reads the QR code displayed on the display 23 of the client device 20. The code reading unit 11b reads the QR code displayed on the display 23 of the client device 20 through the camera provided in the client device 10. The code reading unit 11b decodes the read QR code and obtains identification data.

The takeover request unit 11c transmits a takeover request for linking the game data between the platforms to the game server device 50. This takeover request is transmitted to the game server device 50 together with the identification data obtained by the code reading unit 11b. This takeover request may be transmitted to the game server device 50 together with the user identification information (first user ID) on the platform 1A of the user of the client device 10.

Next, the functions of the game server device 50 and the game server device 60 will be described. The processor 51 of the game server device 50 functions as a game management unit 51a, a verification unit 51b, and a link unit 51c by executing a computer-readable instruction. The processor 61 of the game server device 60 functions as the game management unit 61a by executing a computer-readable instruction.

The game management unit 51a and the game management unit 61a perform various processes for advancing the game. The game management unit 51a, for example, processes a game message from the client device 10 based on a predetermined game logic, and provides the client device 10 with various game data for executing a competitive game to play a game. Can control the progress of. For example, when the game management unit 51a receives an item use message instructing the use of an item from the client device 10, the game management unit 51a performs a process for using the instructed item. The game management unit 61a may perform the same processing as the game management unit 51a.

The verification unit 51b verifies the identification data received from the client device 10 according to a predetermined verification algorithm. For example, when the identification data is signed by the private key, the validity of the identification data is verified by using the public key corresponding to the private key and according to a predetermined verification algorithm. As a result, the verification unit 51b can determine whether or not the identification data received from the client device 10 is legitimately signed by the platform server device 40. When the identification data includes the issuer name of the identification code, the verification unit 51b may determine whether or not the issuer name is a legitimate issuer.

In one embodiment, the link unit 51c is a game provided on platform 1A (ie, a game provided by game server device 50) when it is determined that the identification data has been duly signed by platform server device 40. It is configured to perform link processing for handing over the accumulated game data of user A to platform 1B. This link processing is performed by generating the link data 103 and storing the generated link data 103 in the storage 100. That is, the link unit 51c includes the user identification information (second user ID) on the platform 1B of the user A included in the identification data received from the client device 10 and the user identification information (first) on the platform 1A of the user A. The user ID) is associated with the link data 103 and stored in the storage 100. The link data 103 may be stored in a storage other than the storage 100. For example, the link data 103 may be stored in any one of the storage 43, the storage 53, the storage 63, and any other storage, or may be distributed and stored in these storages.

The verification unit 51b is configured to perform the link processing when it is determined that the issuer name of the identification code is a legitimate issuer when the identification data includes the issuer name of the identification code. You may. When the identification data includes the expiration date of the identification code, the verification unit 51b may be configured to perform the link processing when it is determined that the identification code is within the expiration date.

Subsequently, the transfer process for transferring the game data from the platform 1A to the platform 1B will be described with reference to FIGS. 6 to 8. FIG. 6 is a sequence diagram for explaining the processing in the game processing system according to the embodiment, FIG. 7 is a schematic diagram showing an example of a display image displayed on the client device 20, and FIG. 8 is a schematic diagram. It is a schematic diagram which shows the example of the identification code displayed on the client apparatus 20.

At the start of the takeover process shown in FIG. 6, the user A logs in to the platform 1A and accesses the game server device 50 via the client device 10 to play the game on the platform 1A. As a result, it is assumed that the game data 101 of the user A is stored in the storage 100 in association with the first user ID of the user A. Then, it is assumed that the user A intends to take over the game data accumulated in the platform 1A to the platform 1B. In the example shown in FIG. 6, platform 1A is the migration source platform and platform 1B is the migration destination platform.

In the game data transfer process, first, in step ST1, the initial screen of the game is displayed on the display 23 of the client device 20. FIG. 7 schematically shows an example of an initial screen displayed on the client device 20. As shown in the figure, the initial screen displayed on the client device 20 has a game start button 71 for starting the game without performing the data transfer process and a data transfer button 72 for starting the game data transfer process. And, including. When the game start button 71 is selected by the user A, a process for advancing the game is executed according to the game program and the user's operation input. As the game progresses, the client device 20 accesses the game server device 60 at any time. The process of advancing the game in the client device 20 is executed by, for example, the game progress unit 21a and the game management unit 61a.

On the other hand, when the data takeover button 72 is selected by the user A, the takeover process proceeds to step ST2. In step ST2, the identification code request is transmitted from the client device 20 to the platform server device 40.

The identification code request transmitted from the client device 20 is received by the platform server device 40 in step ST3. Next, in step ST4, the platform server device 40 encodes the identification data including the second user ID, which is the user identification information on the platform 1B of the user A, to generate the identification code based on the received identification code request. .. The identification data may include a nonce in addition to the second user ID of the user A. This identification data may be signed by the private key. The identification code is generated, for example, by the code generation unit 41a described above.

In parallel with the generation of the identification code, or before or after the generation of the identification code, a part or all of the identification data is stored in the storage 43 in the form of the migration data 43a. At the time of processing in step ST4, since the game data migration process has not been completed, the value of the migration status information of the migration data 43a is set to "0".

Next, in step ST5, the generated identification code is transmitted to the client device 20, and subsequently, in step ST6, the identification code is received by the client device 20. The received identification code is displayed on the display 23 of the client device 20 in step ST7. In step ST7, as shown in FIG. 8, the image 81 of the QR code is displayed in a predetermined area of the display 23.

Next, in the client device 20, the transition status confirmation request is periodically transmitted to the platform server device 40 in step ST8a. In response to this, in step ST8b, the migration data 43a is checked, and if the value of the migration status information associated with the second user ID of the user A is "0", the migration of the game data is not completed. Is determined, and a notification indicating that fact is returned to the client device 20. The migration status confirmation request may be periodically transmitted from the client device 20 until the value of the migration status information is rewritten to "1".

In step ST9, the client device 10 reads the QR code displayed on the client device 20. This read QR code is decoded to obtain identification data. The QR code is read and decoded by, for example, the code reading unit 11b described above.

The identification data obtained by decoding the QR code is transmitted to the game server device 50 in step ST10. This identification data is received by the game server device 50 in step ST11.

The received identification data is verified in step ST12. For example, when the identification data is digitally signed, it is verified whether or not the identification data is signed by a legitimate signer by using the public key corresponding to the private key. The verification of the identification data is performed by, for example, the verification unit 51b described above.

If it is determined in step ST12 that the identification data is invalid, the game data transfer process is terminated without proceeding to the next step. In this case, the takeover process ends without migrating the game data from the platform 1A to the platform 1B.

On the other hand, when the identification data is determined to be valid, the takeover process proceeds to step ST13, and a link process for taking over the game data of the user A to the platform 1B is performed. Specifically, the user identification information (first user ID) on the platform 1A of the user A and the user identification information (second user ID) on the platform 1B of the user A included in the identification data whose validity has been confirmed. Is linked and stored in the storage 100 as link data 103. This link processing is performed by, for example, the link portion 51c described above.

When the link processing in step ST13 is completed, the processing proceeds to step ST14, and a link notification indicating that the link processing is completed is transmitted from the game server device 50 to the platform server device 40. The link notification may include a nonce included in the identification data used to generate the link data 103.

The processing of steps ST9 and ST10 in the client device 10 and the processing of steps ST11 to ST14 in the game server device 50 are in parallel with the processing of step ST8a in the client device 20 and the processing in step ST8b in the platform server device 40. It may be executed.

The link notification transmitted from the game server device 50 is received by the platform server device 40 in step ST15. Next, in step ST16, it is determined whether or not the link notification is valid by using the nonce included in the link notification received in step ST15. Specifically, in the migration data 43a, if the migration status information corresponding to the nonce included in the link notification is set to "0" indicating that the game data migration process is completed, the nonce is used. Is the first time, so the link notification is judged to be valid. On the contrary, if the migration status information corresponding to the nonce included in the link notification is set to "1" indicating that the game data migration process is completed in the migration data 43a, the nonce is used for the first time. Therefore, the link notification is determined to be unreasonable. The determination process in step ST16 is performed by, for example, the determination unit 41b described above.

If the link notification is determined to be valid in step ST16, the migration status information corresponding to the nonce is updated to "1" in the migration data 43a in step ST17, indicating that the game data migration process has been completed. To. Further, in step ST18, a transfer completion notification indicating that the game data transfer process is completed is transmitted to the client device 20.

Next, in step ST19, the client device 20 receives the transition completion notification.

Next, in step ST20, the game is started by the client device 20, and the game is advanced according to the operation of the user A. The game is provided on platform 1B because the client device 20 advances the game in cooperation with the game server device 60. Further, in this game, the game data 101 accumulated on the platform 1A can be used by referring to the link data 103. Specifically, in the following procedure, the client device 20 can use the game data 101 accumulated on the platform 1A while the game is being executed on the platform 1B. First, the client device 20 or the game server device 60 transmits a game data acquisition request to the storage 100 while the game is being executed on the platform 1B. This acquisition request is transmitted to the storage 100 together with the user identification information (second user ID) of the user A on the platform 1B of the user A. The storage 100 refers to the link data 103 and identifies the first user ID associated with the received second user ID. Next, the data corresponding to the first user ID or a part thereof is extracted from the game data 101 of the platform 1A, and the extracted data is returned to the client device 20 or the game server device 60. That is, the game data 101 of the user A on the platform 1A is specified based on the second user ID of the user A and the link data 103, and the data extracted from the game data 101 thus specified is used for the platform 1B. The game is advanced with. In this way, the client device 20 and the game server device 60 can use the game data 101 accumulated on the platform 1A while the game is being executed on the platform 1B. That is, the game data accumulated on the platform 1A can be handed over to the platform 1B.

According to the above embodiment, the platform 1A and the platform 1B use different user identification information, but the first user ID used in the platform 1A and the second user ID used in the platform 1B correspond to each other. By referring to the attached link data 103, the game data can be inherited between platforms where different user identification information is used.

According to the above embodiment, the identification code used for the transfer of the game data is generated on the migration destination platform (platform 1B). As a result, even if the code for transfer cannot be generated on the migration source platform (platform 1A), the game data can be transferred using the identification code generated on the migration destination platform.

According to the above embodiment, the identification code used for the transfer of the game data is generated on the migration destination platform (platform 1B), so that the operator of the platform 1B uses the identification code to migrate to the platform 1B. Can be promoted. For example, when trying to stop the operation of platform 1A, it is possible to promote the migration of existing users of platform 1A to platform 1B.

According to the above embodiment, the identification code can be an optically readable code. If the identification code is an optically readable code, the identification code can be easily passed between client devices used on different platforms.

According to the above embodiment, the identification code includes a nonce, and the completion notification (link notification) indicating that the link processing is completed is generated so as to include the nonce included in the received identification code. This nonce allows the identification code to be used only once. Therefore, it is possible to prevent the game data from being passed on to an unauthorized client due to a replay attack.

According to the above embodiment, the identification data is given an electronic signature, and when the identification data is determined to be valid by using the public key, the link data 103 is created. As a result, it is possible to prevent unauthorized transfer of game data by the falsified identification code.

The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist thereof. For example, some or all of the functions executed by the processors 11,21,31,41,51,61 may be realized by a processor (not shown in the above embodiment) as long as the gist of the invention is not deviated. .. In FIG. 1, processors 11,21,31,41,51,61 are shown as a single component, but processors 11,21,31,41,51,61 are physically separate from each other. It may be a set of computer processors. A program described herein as being executed by processors 11,21,31,41,51,61 or instructions contained in such a program may be executed by a single processor or multiple processors. It may be executed in a distributed manner. Further, the program executed by the processors 11,21,31,41,51,61 or the instructions included in the program may be executed by a plurality of virtual computer processors.

Even if it is explained that the processes and procedures described herein are performed by a single device, software, component, module, such processes or procedures are performed by multiple devices, multiple software, multiple devices. It can be performed by a component of, and / or multiple modules. Also, even though the data, tables, or databases described herein are described as being stored in a single memory, such data, tables, or databases are provided in a single device. It can be distributed and stored in a plurality of memories or a plurality of memories distributed in a plurality of devices. Further, the software and hardware elements described herein can also be realized by integrating them into fewer components or by breaking them down into more components.

In the processing procedure described in the present specification, particularly the processing procedure described by using the flow chart or the sequence diagram, a part of the steps (steps) constituting the processing procedure is omitted, and the processing procedure is configured. It is possible to add steps that are not specified as steps to be performed, and / or to change the order of the steps, and the processing procedure in which such omissions, additions, or changes in order are made also deviates from the gist of the present invention. Unless otherwise included, it is included in the scope of the present invention.

The inventions described in the claims (however, the errors have been corrected) at the time of filing the original application of the present application are added below.
[1]
When one or more computer processors execute computer-readable instructions, the first user identification information is used to identify the user, and the second user identification information is used to identify the user from the first platform. A method of transferring the game data of the user on the first platform, which is stored in association with the first user identification information, to the second platform used.
A step of encoding identification data including the second user identification information to generate an identification code, and
In the second client device using the second platform, the output step of outputting the identification code and
In the first client device using the first platform, a reading step of reading the identification code and
A step of generating link data for associating the second user identification information included in the identification code read by the first client device with the first user identification information.
A step of specifying the game data based on the second user identification information and the link data, and providing the game to the second client device using the game data.
How to prepare.
[2]
The method according to item [1], wherein the identification code is an optically readable code.
[3]
The method according to item [2], wherein in the output step, the identification code is displayed on the display of the second client device.
[4]
A transmission step of transmitting a completion notification to the second platform according to the association between the second user identification information included in the identification code and the first user identification information is further provided.
The method according to any one of items [1] to [3].
[5]
The method according to item [4], further comprising a step of starting the game in the second client device in response to the completion notification being received on the second platform.
[6]
The identification code further includes a nonce.
The completion notification is generated to include a nonce included in the identification code received from the first client device.
The method according to item [1] or item [5].
[7]
An electronic signature is attached to the identification data.
In the step of generating the link data, when the identification data is determined to be valid by using the public key, the second user identification information and the first user identification information included in the identification code are combined. Associated,
The method according to any one of items [1] to [6].
[8]
The identification code further includes expiration information indicating the expiration date.
In the step of generating the link data, when the expiration date included in the identification code has not passed, the second user identification information and the first user identification information included in the identification code are combined. Associated,
The method according to any one of items [1] to [7].
[9]
The identification code further includes an issuer name indicating the issuer.
In the step of generating the link data, when the issuer name included in the identification code is valid, the second user identification information and the first user identification information included in the identification code are combined. Associated,
The method according to any one of items [1] to [8].
[10]
A second where the second user identification information is used to identify the user from the first platform where the first user identification information is used to identify the user by being executed by one or more computer processors. A program for inheriting the game data of the user on the first platform, which is stored in association with the first user identification information, to the platform.
To the one or more computer processors
A step of encoding identification data including the second user identification information to generate an identification code, and
In the second client device using the second platform, the output step of outputting the identification code and
In the first client device using the first platform, a reading step of reading the identification code and
A step of generating link data for associating the second user identification information included in the identification code read by the first client device with the first user identification information.
A step of specifying the game data based on the second user identification information and the link data, and providing the game to the second client device using the game data.
A program that executes.
[11]
From the first platform where the first user identification information is used to identify the user to the second platform where the second user identification information is used to identify the user Game data of the user on the first platform It is a system to take over
With one or more computer processors
A storage that stores game data of the user on the first platform in association with the first user identification information, and
With
The one or more computer processors may execute computer-readable instructions.
The identification data including the second user identification information is encoded to generate an identification code.
The identification code is output in the second client device that uses the second platform.
In the first client device using the first platform, the identification code is read and read.
Link data for associating the second user identification information included in the identification code read by the first client device with the first user identification information is generated.
The game data is specified based on the second user identification information and the link data, and the game is provided to the second client device using the game data.
system.

1 Game processing system

Claims (12)

A second user identification information is used to identify the user from a first platform on which the first user identification information is used to identify the user by executing a computer-readable instruction by one or more computer processors. A method of transferring the game data of the user on the first platform, which is stored in association with the first user identification information, to the second platform used.
A step of encoding identification data including the second user identification information in the second platform to generate an identification code, and
A step of generating link data for associating the second user identification information included in the identification code with the first user identification information, and
A step of specifying the game data based on the second user identification information and the link data, and providing a game using the game data to a second client device using the second platform.
How to prepare. Further comprising a step of storing migration status information indicating whether or not the migration of the game data from the first platform to the second platform is completed.
The method according to claim 1. A transmission step of transmitting a completion notification to the second platform according to the association between the second user identification information included in the identification code and the first user identification information is further provided.
In the step of storing the migration status information, a value indicating that the migration of the game data is completed is set as the migration status information in response to the completion notification being received by the second platform.
The method according to claim 2. The identification code further includes a nonce.
The completion notification is generated to include the nonce included in the identification code received from the first client device utilizing the first platform.
In the step of storing the migration status information, when it is determined that the completion notification is valid using the nonce included in the completion notification, the migration of the game data is completed as the migration status information. Set the indicated value,
The method according to claim 3. A step of initiating the game on the second client device in response to the completion notification being received on the second platform is further provided.
The method according to claim 3 or 4 . The identification code is an optically readable code.
The method according to any one of claims 1 to 5. The identification code is displayed on the display of the second client device.
The method according to claim 6. An electronic signature is attached to the identification data.
In the step of generating the link data, when the identification data is determined to be valid by using the public key, the second user identification information and the first user identification information included in the identification code are combined. Associated,
The method according to any one of claims 1 to 7. The identification code further includes expiration information indicating the expiration date.
In the step of generating the link data, when the expiration date included in the identification code has not passed, the second user identification information and the first user identification information included in the identification code are combined. Associated,
The method according to any one of claims 1 to 8. The identification code further includes an issuer name indicating the issuer of the identification code.
In the step of generating the link data, when the issuer name included in the identification code is valid, the second user identification information and the first user identification information included in the identification code are combined. Associated,
The method according to any one of claims 1 to 9. A second user identification information is used to identify the user from a first platform on which the first user identification information is used to identify the user by being executed by one or more computer processors. A program for inheriting the game data of the user on the first platform, which is stored in association with the first user identification information, to the platform.
To the one or more computer processors
A step of encoding identification data including the second user identification information in the second platform to generate an identification code, and
A step of generating link data for associating the second user identification information included in the identification code with the first user identification information, and
A step of specifying the game data based on the second user identification information and the link data, and providing a game using the game data to a second client device using the second platform.
A program that executes. From the first platform where the first user identification information is used to identify the user to the second platform where the second user identification information is used to identify the user Game data of the user on the first platform It is a system to take over
With one or more computer processors
A storage that stores game data of the user on the first platform in association with the first user identification information, and
With
The one or more computer processors may execute computer-readable instructions.
The identification data including the second user identification information is encoded in the second platform to generate an identification code.
Link data for associating the second user identification information included in the identification code with the first user identification information is generated.
The game data is specified based on the second user identification information and the link data, and the game is provided to the second client device using the second platform using the game data.
system.