CN112516593B - Card drawing method, card drawing system and computer equipment - Google Patents
Card drawing method, card drawing system and computer equipment Download PDFInfo
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- CN112516593B CN112516593B CN201910886118.1A CN201910886118A CN112516593B CN 112516593 B CN112516593 B CN 112516593B CN 201910886118 A CN201910886118 A CN 201910886118A CN 112516593 B CN112516593 B CN 112516593B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/55—Controlling game characters or game objects based on the game progress
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/50—Controlling the output signals based on the game progress
- A63F13/52—Controlling the output signals based on the game progress involving aspects of the displayed game scene
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/80—Special adaptations for executing a specific game genre or game mode
- A63F13/822—Strategy games; Role-playing games
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
- A63F2300/807—Role playing or strategy games
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Abstract
The invention discloses a card extracting method, a system and computer equipment, wherein the method comprises the following steps: acquiring an operation instruction of a first user for inputting card information, and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in a block chain; acquiring a card drawing transaction information hash value sent by a second user at a block node on a block chain, address information of the second user and a block hash value of a next block of the block node based on a first intelligent contract instance in the block chain, and generating a first intelligent contract instance; generating a random number according to the hash value of the card drawing transaction information, the address information of the second user and the block hash value of the next block; and opening the card according to the random number and the first intelligent contract instance, and displaying the card opening result. The invention can realize the effect of randomly drawing cards under the decentralized framework.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a card extracting method, a card extracting system and computer equipment.
Background
In the existing card drawing game, a random number is generated by controlling the probability through a system, and cards corresponding to the random number are issued to players, however, the existing implementation mode cannot realize the public fairness and justice of the card drawing game. When the block chain technology is used for realizing the card drawing game, the blocks can be packed and approved only because the calculation process and the result of the intelligent contract need to keep the consistency of the whole network, and in this case, the blocks are randomly forked. Moreover, in the card drawing game implemented by using the block chain technology, the randomness is confirmed by the whole network, and meanwhile, the randomness also needs to be incapable of being manipulated and predicted. Therefore, the invention aims to solve the problem of randomly drawing cards in a card drawing game under a decentralized architecture.
Disclosure of Invention
The invention aims to provide a card drawing method, a system, computer equipment and a readable storage medium, which are used for solving the defect that cards cannot be drawn randomly in a card drawing game under a decentralized framework in the prior art.
According to one aspect of the invention, a card drawing method is provided, which comprises the following steps:
acquiring an operation instruction of card information input by a first user, and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in a block chain;
acquiring a card drawing transaction information hash value sent by a first block of a second user on a block chain, address information of the second user and a block hash value of the second block based on a first intelligent contract instance in the block chain, wherein the second block is a block next to the first block;
generating a random number according to the hash value of the card drawing transaction information, the address information of the second user and the block hash value of the second block;
and opening the card according to the random number and the first intelligent contract instance, and displaying the card opening result.
Optionally, the card drawing method further includes:
acquiring card information, wherein the card information at least comprises attribute information of cards and the number of the cards;
counting the total number of cards of each attribute information according to the attribute information;
generating a second intelligent contract instance corresponding to the cards of each attribute information according to the total number of the cards of each attribute information, the attribute information and a second intelligent contract template;
placing a plurality of second intelligent contract instances in the first intelligent contract instance according to a preset rule to determine the placement positions of the plurality of second intelligent contract instances in the first intelligent contract instance;
when the card opening success is detected, updating the placement positions of the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the card opening result, and recording the transaction information on the block chain;
and acquiring the updated second intelligent contract instance and the updated first intelligent contract instance.
Optionally, the updating the placement positions of the second smart contract instance and the second smart contract instance in the first smart contract instance according to the card opening result when the card opening success is detected includes:
acquiring target cards corresponding to the card opening result, and calculating the target number of the target cards;
subtracting the target quantity from the total quantity of the target cards in the target second intelligent contract example corresponding to the target cards to obtain the residual quantity of the target cards in the target second intelligent contract example;
updating the placement positions of the first intelligent contract instance, the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the remaining number of the target cards.
Optionally, the obtaining, based on a first intelligent contract template in the blockchain, a hash value of the card drawing transaction information initiated by a second user at a first block on the blockchain, address information of the second user, and a block hash value of the second block includes:
acquiring a card drawing transaction request initiated by the second user;
responding to the card drawing transaction request, generating a corresponding card to be opened record according to the payment information when the payment information of the second user is received, and generating a hash value of the card drawing transaction information according to the card to be opened record;
recording node information of the first block of which the second user performs payment operation on the block chain;
and when the uplink of the second block is detected, acquiring the block hash value of the second block.
Optionally, the generating a random number according to the draw card transaction information hash value, the address information of the second user, and the block hash value of the second block includes:
calculating the hash value of the card drawing transaction information, the address information of the user and the block hash value of the second block according to a preset packing and encoding algorithm, and obtaining a calculation result;
and generating the random number according to the calculation result.
Optionally, the opening the card according to the random number and the first smart contract instance includes:
counting the total number of all cards according to the total number of the cards of each attribute information;
performing remainder calculation on the total number of all the cards by using the random number to obtain a remainder result;
and transferring the card of the second intelligent contract instance in the first intelligent contract instance at the same placement position as the surplus result to the account of the second user.
Optionally, the card drawing method further includes:
when an instruction that a third user inquires the card number of each attribute information is received, acquiring the updated second intelligent contract example;
acquiring the number of cards in each updated second intelligent contract instance according to the first intelligent contract instance and the updated second intelligent contract instance;
and displaying the card number in each updated second intelligent contract instance.
Optionally, the card drawing method further includes:
when receiving transaction details of a fourth user inquiring a card, acquiring interface information of the block chain, wherein the transaction details at least comprise a transfer record for extracting the card and payment information of the card;
and acquiring the transaction details of the card from the interface information of the block chain, and displaying the transaction details of the card.
In order to achieve the above object, the present invention further provides a card drawing system, which specifically comprises the following components:
the acquisition module is used for a first user to input an operation instruction of card information and generate a first intelligent contract instance according to the operation instruction and a first intelligent contract template in the block chain;
the obtaining module is further configured to obtain, based on a first intelligent contract instance in a block chain, a card drawing transaction information hash value sent by a second user in a first block on the block chain, address information of the second user, and a block hash value of a second block, where the second block is a next block of the first block;
the generation module is used for generating a random number according to the card drawing transaction information hash value, the address information of the second user and the block hash value of the second block;
and the card opening module is used for opening the card according to the random number and the first intelligent contract instance and displaying the card opening result.
In order to achieve the above object, the present invention further provides a computer device, which specifically includes: the card drawing method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the steps of the card drawing method.
In order to achieve the above object, the present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the card drawing method introduced above.
According to the card drawing method, the card drawing system, the computer equipment and the readable storage medium, random numbers are generated according to the card drawing transaction information hash value sent by the user at the block node, the address information of the user and the block hash value of the next block of the block node, and card drawing is carried out according to the random numbers, so that the effect of randomly drawing cards is achieved under a decentralized framework.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart that schematically illustrates a card drawing method, in accordance with an embodiment of the present invention;
FIG. 2 is a flow chart that schematically illustrates a card drawing method in accordance with another embodiment of the present invention;
FIG. 3 is a detailed flowchart of step S208 in FIG. 2;
FIG. 4 is a detailed flowchart of step S100 in FIG. 1;
FIG. 5 is a detailed flowchart of step S104 in FIG. 1;
FIG. 6 is a flow chart that schematically illustrates a card drawing method in accordance with another embodiment of the present invention;
fig. 7 is a flow chart schematically illustrating a card drawing method according to another embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating an alternative process block diagram for the card drawing system in accordance with one embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating an alternative process block diagram of the card drawing system in accordance with another embodiment of the present invention;
fig. 10 is a diagram schematically illustrating a hardware architecture of a computer apparatus adapted to implement the card extracting method according to an embodiment of the present invention;
FIG. 11 schematically illustrates a placement relationship diagram for a second intelligent contract instance in a first intelligent contract instance, according to one embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The card drawing method provided by the invention is explained below with reference to the accompanying drawings.
Fig. 1 is a schematic view of an alternative flow of the card extracting method of the present invention, and as shown in fig. 1, the method specifically includes the following steps:
step S100: and acquiring an operation instruction of the card information input by the first user, and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in the block chain.
In this embodiment, the first intelligent contract template is generated according to a preset card drawing rule and a preset card viewing method. For example: the preset card drawing rule is a single drawing or a ten-continuous drawing.
Illustratively, when the card drawing event host inputs a plurality of card cards, the card drawing system obtains the input operation of the card drawing event host, and generates a first intelligent contract instance according to the first intelligent contract template generated in the block chain.
Step S102: based on a first intelligent contract instance in a block chain, acquiring a card drawing transaction information hash value sent by a first block of a second user on the block chain, address information of the second user and a block hash value of a second block, wherein the second block is a block next to the first block.
Illustratively, when a card drawing user initiates a card drawing transaction, the card drawing user draws cards according to the card drawing method of the first intelligent contract instance. Then, the card drawing system obtains the card drawing transaction information input by the block of the card drawing user on the block chain (namely the terminal of the card drawing user), the block hash value of the next block of the block and the address information of the card drawing user, and generates the card drawing transaction information hash value according to the card drawing transaction information. It should be noted that, due to the chain-like characteristic of the block chain, after the next block of the block is chained, the hash value of the next block can be directly obtained from the next block.
Step S104: and generating a random number according to the hash value of the card drawing transaction information, the address information of the second user and the block hash value of the second block.
Specifically, the hash value of the card drawing transaction information, the address information of the user and the block hash value of the second block are calculated according to a preset packing and encoding algorithm to obtain a calculation result, and then the random number is generated according to the calculation result. For example: and performing random number operation on the calculation result according to a preset random number generation algorithm to obtain the random number.
It should be noted that, since the hash value of the card drawing transaction information, the address information of the user, and the block hash value of the second block are all fixed values in each transaction, the consistency of the card opening result on the whole block chain is ensured.
Step S106: and opening the card according to the random number and the first intelligent contract instance, and displaying the card opening result.
Illustratively, a corresponding card is obtained according to the random number and the first intelligent contract instance, and the card is displayed on the user terminal.
In the card drawing method provided by this embodiment, a random number is generated according to the card drawing transaction information hash value sent by the user at the block node, the address information of the user, and the block hash value of the next block of the block node, and the card is drawn according to the random number, so that the effect of randomly drawing cards is achieved under a decentralized architecture.
Fig. 2 schematically shows a flow chart of a card drawing method according to another embodiment of the present invention. The card drawing method can comprise steps S200-S216, wherein:
step S200: and acquiring the card information, wherein the card information at least comprises attribute information of cards and the number of the cards.
Illustratively, various cards with corresponding attribute information input by the card drawing event host are obtained, so that the card drawing user can play games according to the drawn cards and the corresponding attribute information.
It should be noted that the card is one of the props in the trading card game, and is generally a character card or a skill card. Each card game has its own rules, so the attributes of the card are determined by the authorities according to business requirements, such as: name, grade, rarity, etc. Each card has words expressing rules to describe the attribute information and the use effect of the cards no matter what kind of game is played.
Step S202: and counting the total number of cards of each attribute information according to the attribute information.
Illustratively, if there are a plurality of cards a with attribute information of a, a plurality of cards B with attribute information of B, and a plurality of cards C with attribute information of C, the total number of the cards a with attribute information of a, the total number of the cards B with attribute information of B, and the total number of the cards C with attribute information of C are respectively counted.
Step S204: and generating a second intelligent contract instance corresponding to the cards of each attribute information according to the total number of the cards of each attribute information, the attribute information and a second intelligent contract template.
For example, generating a second intelligent contract instance 1 according to the total number of the cards A with the attribute information of a and a second intelligent contract template; generating a second intelligent contract example 2 according to the total number of the cards B with the attribute information of B and a second intelligent contract template; and generating a second intelligent contract instance 3 according to the total number of the cards C with the attribute information of C and a second intelligent contract template.
It should be noted that cards having the same attribute information are not distinguished, and are not distinguished when being extracted, and only one card needs to be extracted from the second intelligent contract instance corresponding to the extracted card.
In this embodiment, before the card drawing activity starts, the second intelligent contract template is generated according to the preset card attribute information parameters and the card quantity parameters corresponding to each card attribute parameter, so as to record and track the information of each card and the information of the transaction process.
Step S206: and placing a plurality of second intelligent contract instances in the first intelligent contract instance according to a preset rule to determine the placement positions of the plurality of second intelligent contract instances in the first intelligent contract instance.
Illustratively, referring to fig. 11, the second intelligent contract instance 1, the second intelligent contract instance 2 and the second intelligent contract instance 3 \8230areplaced in the first intelligent contract instance in sequence in a front-to-back order, and then the placement positions of the second intelligent contract instance 1, the second intelligent contract instance 2 and the second intelligent contract instance 3 \8230inthe first intelligent contract instance are determined.
For example: and if the second intelligent contract example 1 comprises 10 cards A, the second intelligent contract example 2 comprises 15 cards B and the second intelligent contract example 3 comprises 12 cards C, the placement position of the second intelligent contract example 1 in the first intelligent contract example is determined to be 0-9, the placement position of the second intelligent contract example 2 in the first intelligent contract example is determined to be 10-24, and the placement position of the second intelligent contract example 3 in the first intelligent contract example is determined to be 25-36.
Step S208: and when the card opening success is detected, updating the placement positions of the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the card opening result, and recording the transaction information on the block chain.
Illustratively, continuing to refer to fig. 11, when the card opening is successful and a card is drawn, which is card a with position 9, the total number 10 of card a in the second smart contract instance 1 is updated to 9, the placement position of the second smart contract instance 1 in the first smart contract instance is updated to 0-8, the placement position of the second smart contract instance 2 in the first smart contract instance is updated to 9-23, and the placement position of the second smart contract instance 3 in the first smart contract instance is updated to 24-35.
Of course, the card drawing method may be different from another card drawing method, for example, if a plurality of cards are drawn at the same time, the card drawing method may be referred to for updating, and will not be described in detail here.
Step S210: and acquiring the updated second intelligent contract instance and the updated first intelligent contract instance.
According to the embodiment of the invention, the corresponding second intelligent contract instance is generated according to the card information, and the second intelligent contract instance is placed in the first intelligent contract instance according to the preset method, so that the residual quantity of each card and the placement position in the first intelligent contract instance can be recorded in real time, and the card situation in the first intelligent contract instance can be checked later.
In an exemplary embodiment, as shown in fig. 3, the step S208 may include steps S300 to S303:
step S300: and acquiring target cards corresponding to the card opening result, and calculating the target number of the target cards.
Illustratively, referring to FIG. 11, when a card A is acquired, the number of cards A acquired is calculated. When a single card a is acquired, the number of acquired cards a is calculated to be 1. Of course, depending on the card drawing method, a plurality of cards in successive positions may be obtained. For example: when 4 consecutive cards a are acquired, the number of acquired cards a is calculated to be 4. When 4 cards are obtained in succession, including 2 cards a and 2 cards B, the number of the cards a and the number of the cards B are calculated as 2.
Step S302: and subtracting the target quantity from the total quantity of the target cards in the target second intelligent contract example corresponding to the target cards to obtain the residual quantity of the target cards in the target second intelligent contract example.
Illustratively, continuing to refer to fig. 11, the total number of cards a is 10, and when the number of cards a obtained is calculated to be 1, the remaining number of cards a in the second example smart contract 1 is calculated to be 9. Accordingly, the total number of all cards in the first smart contract instance is correspondingly subtracted by the number of cards a obtained.
Step S304: updating the placement positions of the first intelligent contract instance, the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the remaining number of the target cards.
Illustratively, when the remaining number of card cards a is calculated, the card cards in the second smart contract instance 2 and the second smart contract instance 3 \8230aremoved forward one position because the number of card cards in the second smart contract instance 2 and the second smart contract instance 3 \8230arenot changed. And updating the placement positions of the second intelligent contract instance 1, the second intelligent contract instance 2 and the second intelligent contract instance 3 \8230inthe first intelligent contract instance according to the calculated residual number of the card cards A in the second intelligent contract instance 1 being 9.
In an exemplary embodiment, as shown in fig. 4, the step S100 may include steps S400 to S406, wherein:
step S400: and acquiring the card drawing transaction request initiated by the second user.
Step S402: responding the card drawing transaction request, generating a corresponding card opening record according to the payment information when the payment information of the second user is received, and generating the card drawing transaction information hash value according to the card opening record.
Step S404: recording node information of the first block on which the second user performs a payment operation on the block chain.
Step S406: and when the uplink of the second block is detected, acquiring the block hash value of the second block.
Illustratively, when the card drawing user initiates a card drawing transaction request and pays for completion on the first block, a card drawing transaction information hash value of the transaction is generated. When detecting the uplink of the next block (second block) of the first block, obtaining the block hash value of the next block.
In an exemplary embodiment, as shown in fig. 5, the step S104 may include steps S500 to S504:
step S500: and counting the total number of all cards according to the total number of the cards of each attribute information.
Exemplarily, when the total number of cards of each attribute information is counted, the total number of cards of each attribute information is superposed to obtain the total number of all cards.
Step S502: and performing remainder calculation on the total number of all the cards by using the random number to obtain a remainder result.
Step S504: and transferring the card of the second intelligent contract instance in the first intelligent contract instance at the same placement position as the surplus result to the account of the second user.
Illustratively, when the generated random number is 60, the calculated total number of all cards is 29, and 60 is divided by 29 to obtain a remainder of 2, the cards in the second smart contract instance with the placement position set to 2 are transferred to the account of the card drawing user. With reference to fig. 11, the placement positions of the second smart contract instance 1 in the first smart contract instance are 0-9, and if the remainder is 2, the card a in the second smart contract instance 1 is transferred to the account of the card drawing user.
Fig. 6 is a flow chart schematically illustrating a card drawing method according to another embodiment of the present invention. The card drawing method can also comprise the steps S600-S604, wherein:
step S600: and when an instruction that a third user inquires the card number of each attribute information is received, acquiring the updated second intelligent contract instance.
Step S602: and acquiring the card number of each updated second intelligent contract instance according to the first intelligent contract instance and the updated second intelligent contract instance.
Step S604: and displaying the number of cards in each updated second intelligent contract instance.
Illustratively, when the inquiry user inquires the remaining number of various cards, acquiring the inquiry instruction of the inquiry user, acquiring each updated second intelligent contract instance according to the inquiry instruction, acquiring the remaining number of each card according to each updated second intelligent contract instance, and displaying the remaining number. With reference to fig. 11, when only one card in the second intelligent contract instance 1 is drawn by the card drawing user, the query result shows that the remaining number of cards a in the second intelligent contract instance 1 is 9, the remaining number of cards B in the second intelligent contract instance 2 is 15, and the remaining number of cards C in the second intelligent contract instance 3 is 12, and the remaining numbers of these cards are displayed.
According to the embodiment of the invention, the information corresponding to the cards in the second intelligent contract examples is obtained according to the received query instruction, and the remaining number of the cards in each second intelligent contract example can be rapidly displayed.
Fig. 7 is a flow chart schematically illustrating a card drawing method according to another embodiment of the present invention. The card drawing method can also comprise steps S700-S702, wherein:
step S700: and when receiving transaction details of a fourth user inquiring a card, acquiring interface information of the block chain, wherein the transaction details at least comprise a transfer record for extracting the card and payment information of the card.
Step S702: and acquiring the transaction details of the card from the interface information of the blockchain.
Exemplarily, if a card drawing user A draws a card A, when the transaction details of the card A of the user are inquired, the transaction information of the card A is obtained from the interface information of the block chain, and further the payment information of the card A transferred from the card drawing event host to the card drawing user A and the card drawing user A is obtained, wherein the interface can be an Etherjson-rpc interface.
The method of the embodiment of the present invention may also be used for extracting other articles, and is not limited herein, and the embodiment of the present invention is described by taking a card as an example.
According to the embodiment of the invention, the interface information of the block chain is obtained according to the received query information of the card transaction details, so that the transaction details of each card can be obtained, and the destination of each card can be tracked.
Based on the card drawing method provided in the above embodiments, in this embodiment, a card drawing system is provided, and specifically, fig. 8 shows an optional program module diagram of the card drawing system, where the card drawing system is divided into one or more program modules, and the one or more program modules are stored in a storage medium and executed by one or more processors, so as to complete the present invention. The program module referred to in the present invention refers to a series of computer program instruction segments capable of performing specific functions, and is more suitable for describing the execution process of the card drawing system in the storage medium than the program itself.
As shown in fig. 8, the card drawing system specifically includes the following components:
the obtaining module 201 is configured to enable a first user to input an operation instruction of card information, and generate a first intelligent contract instance according to the operation instruction and a first intelligent contract template in a block chain.
In this embodiment, the first intelligent contract template is generated according to a preset card drawing rule and a preset card viewing method. For example: the preset card drawing rule is single drawing or ten continuous drawing.
Illustratively, when the card drawing event host inputs a plurality of cards, the obtaining module 201 obtains an input operation of the card drawing event host, and generates a first intelligent contract instance according to the first intelligent contract template generated in the block chain.
The obtaining module 201 is further configured to obtain, based on a first intelligent contract instance in a block chain, a card drawing transaction information hash value sent by a first block on the block chain by a second user, address information of the second user, and a block hash value of the second block, where the second block is a next block to the first block.
Illustratively, when a card drawing user initiates a card drawing transaction, the card drawing user draws cards according to the card drawing method of the first intelligent contract instance. Then, the obtaining module 201 obtains the card drawing transaction information input by the card drawing user in a block on the blockchain (i.e. the terminal of the card drawing user), the block hash value of the next block of the block, and the address information of the card drawing user, and generates the card drawing transaction information hash value according to the card drawing transaction information. It should be noted that, due to the chain-like characteristic of the block chain, after the next block of the block is chained, the hash value of the next block can be directly obtained from the next block.
A generating module 202, configured to generate a random number according to the hash value of the card drawing transaction information, the address information of the second user, and the block hash value of the second block.
Specifically, the hash value of the card drawing transaction information, the address information of the user, and the block hash value of the second block are calculated according to a preset packing and encoding algorithm to obtain a calculation result, and then the generation module 202 generates the random number according to the calculation result. For example: and performing random number operation on the calculation result according to a preset random number generation algorithm to obtain the random number.
It should be noted that, since the hash value of the card drawing transaction information, the address information of the user, and the block hash value of the second block are all constant values in each transaction, the consistency of the card opening result on the whole block chain is ensured.
And the card opening module 203 is used for opening the card according to the random number and the first intelligent contract instance and displaying the card opening result.
Illustratively, a corresponding card is obtained according to the random number and the first intelligent contract instance, and the card is displayed on the user terminal.
In an exemplary embodiment, as shown in fig. 9, the card drawing system further includes a statistics module 204 besides the obtaining module 201, the generating module 202, and the card opening module 203.
The obtaining module 201 is further configured to obtain the card information, where the card information at least includes attribute information of a card.
Illustratively, the obtaining module 201 obtains various cards with corresponding attribute information input by the card drawing event host, so that the card drawing user can play a game according to the drawn cards and the corresponding attribute information.
It should be noted that the card is one of the props in the trading card game, and is generally a character card or a skill card. Each card game has its own rules, so the attributes of the card are determined by the authorities according to business requirements, such as: name, rating, rareness, etc. Each card has words expressing rules to describe the attribute information and the use effect of the cards no matter what kind of game is played.
The counting module 204 is configured to count the total number of cards in each attribute information according to the attribute information.
For example, if there are a plurality of cards a with attribute information a, a plurality of cards B with attribute information B, and a plurality of cards C with attribute information C, the counting module 204 respectively counts the total number of the cards a with attribute information a, the total number of the cards B with attribute information B, and the total number of the cards C with attribute information C.
The generating module 202 is further configured to generate a second intelligent contract instance corresponding to the cards of each attribute information according to the total number of the cards of each attribute information, the attribute information, and a second intelligent contract template.
For example, the generating module 202 generates a second intelligent contract instance 1 according to the total number of the cards a with attribute information a and according to a second intelligent contract template; generating a second intelligent contract instance 2 according to the total number of the cards B with the attribute information of B and a second intelligent contract template; and generating a second intelligent contract instance 3 according to the total number of the cards C with the attribute information of C and a second intelligent contract template.
It should be noted that cards having the same attribute information are not distinguished, and are not distinguished when being extracted, and only one card needs to be extracted from the second intelligent contract instance corresponding to the extracted card.
In this embodiment, before the card drawing activity starts, the second intelligent contract template is generated according to the preset card attribute information parameters and the card quantity parameters corresponding to each card attribute parameter, so as to record and track the information of each card and the information of the transaction process.
A determining module 205, configured to place a plurality of second intelligent contract instances in the first intelligent contract instance according to a preset rule to determine placement positions of the plurality of second intelligent contract instances in the first intelligent contract instance.
Referring to fig. 11, the determination module 205 places the second intelligent contract instance 1, the second intelligent contract instance 2, and the second intelligent contract instance 3 \8230inthe first intelligent contract instance in a sequential order, and then determines the placement positions of the second intelligent contract instance 1, the second intelligent contract instance 2, and the second intelligent contract instance 3 \8230inthe first intelligent contract instance.
For example: if there are 10 cards a in the second smart contract instance 1, 15 cards B in the second smart contract instance 2, and 12 cards C in the second smart contract instance 3, the determination module 205 determines that the placement position of the second smart contract instance 1 in the first smart contract instance is 0 to 9, the placement position of the second smart contract instance 2 in the first smart contract instance is 10 to 24, and the placement position of the second smart contract instance 3 in the first smart contract instance is 25 to 36.
And the updating module 206 is configured to, when a successful card opening is detected, update the placement positions of the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the card opening result, and record the transaction information on the blockchain.
Illustratively, with reference to fig. 11, when the card opening is successful, and a card is drawn out, which is a card a with a position of 9, the update module 206 updates the total number 10 of the cards a in the second intelligent contract instance 1 to 9, and updates the placement position of the second intelligent contract instance 1 in the first intelligent contract instance to 0-8, the placement position of the second intelligent contract instance 2 in the first intelligent contract instance to 9-23, and the placement position of the second intelligent contract instance 3 in the first intelligent contract instance to 24-35.
Of course, the card drawing method may be different from the other card drawing method, and for example, if a plurality of cards are drawn at the same time, the card drawing method may be referred to for updating, and will not be described in detail here.
The obtaining module 201 is further configured to obtain the updated second intelligent contract instance and the updated first intelligent contract instance.
In an exemplary embodiment, the update module 206 further includes a first obtaining unit and an update unit, where:
the first acquisition unit is used for acquiring the target cards corresponding to the card opening result and calculating the target number of the target cards.
Illustratively, referring to FIG. 11, when a card A is acquired, the number of cards A acquired is calculated. When a single card a is acquired, the number of acquired cards a is calculated to be 1. Of course, depending on the method of drawing cards, multiple cards in successive positions may be acquired. For example: when 4 consecutive cards a are acquired, the number of acquired cards a is calculated to be 4. When 4 cards are obtained in succession, including 2 cards a and 2 cards B, the number of the cards a and the number of the cards B are calculated as 2.
The first obtaining unit is further configured to subtract the target number from the total number of the target cards in the target second intelligent contract instance corresponding to the target card, so as to obtain the remaining number of the target cards in the target second intelligent contract instance.
Illustratively, continuing to refer to fig. 11, when the total number of cards a is 10, and the number of cards a obtained is calculated to be 1, the first obtaining unit obtains the remaining number of cards a in the second example smart contract 1 as 9 through calculation. Accordingly, the total number of all cards in the first intelligent contract example is correspondingly subtracted by the number of the acquired cards A.
The updating unit is used for updating the placement positions of the first intelligent contract instance, the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the remaining number of the target cards.
Illustratively, when the remaining number of card cards a is calculated, the card cards in the second smart contract instance 2 and the second smart contract instance 3 \8230aremoved forward one position because the number of card cards in the second smart contract instance 2 and the second smart contract instance 3 \8230arenot changed. The updating unit updates the card cards A in the second intelligent contract instance 1 and the first intelligent contract embodiment according to the calculated residual quantity of the card cards A in the second intelligent contract instance 1 being 9, and updates the placement positions in the first intelligent contract instance in the second intelligent contract instance 1, the second intelligent contract instance 2 and the second intelligent contract instance 3 \8230.
In an exemplary embodiment, the acquiring module 201 further includes a second acquiring unit, a generating unit, and a recording unit.
And the second acquisition unit is used for acquiring the card drawing transaction request initiated by the second user.
And the generating unit is used for responding to the card drawing transaction request, generating a corresponding to-be-opened card record according to the payment information when receiving the payment information of the second user, and generating the hash value of the card drawing transaction information according to the to-be-opened card record.
The recording unit is configured to record node information of the block where the second user performs the payment operation on the block chain.
The second obtaining unit is further configured to obtain a block hash value of the second block after detecting the uplink of the second block.
Illustratively, when the card drawing user initiates a card drawing transaction request and pays for completion on the first block, the card drawing transaction information hash value of the transaction is generated. When detecting the uplink of the next block (second block) of the first block, obtaining the block hash value of the next block.
In an exemplary embodiment, the generation module 202 further includes a statistics unit, a remainder unit, and a transfer unit.
And the counting unit is used for counting the total number of all cards according to the total number of the cards of each attribute information.
Illustratively, when the counting unit counts the total number of cards of each attribute information, the total number of cards of each attribute information is superimposed to obtain the total number of all cards.
And the remainder unit is used for carrying out remainder calculation on the total number of all the cards by using the random number so as to obtain a remainder result.
And the transfer unit is used for transferring the cards of the second intelligent contract example at the same placement position as the surplus result in the first intelligent contract example to the account of the second user.
Illustratively, when the generated random number is 60, the calculated total number of all cards is 29, and the 60 is divided by 29 to obtain a remainder of 2, the transfer unit transfers the cards in the second smart contract example with the setting position of 2 to the account of the card drawing user. With reference to fig. 11, the placement position of the second intelligent contract instance 1 in the first intelligent contract instance is 0-9, and if the remainder is 2, the transfer unit transfers the card a in the second intelligent contract instance 1 to the account of the card drawing user.
In an exemplary embodiment, the obtaining module 201 is further configured to, when receiving an instruction that a third user inquires the number of cards of each attribute information, obtain the updated second intelligent contract instance, and obtain, according to the first intelligent contract instance and the updated second intelligent contract instance, the number of cards in each updated second intelligent contract instance.
The card opening module 203 is further configured to display the number of cards in each updated second smart contract instance.
Illustratively, when the inquiring user inquires the remaining number of each card, the obtaining module 201 obtains the inquiry instruction of the inquiring user, obtains each updated second intelligent contract instance according to the inquiry instruction, obtains the remaining number of each card according to each updated second intelligent contract instance, and then, the card opening module 203 displays the remaining number. With reference to fig. 11, when only one card in the second intelligent contract instance 1 is drawn by the card drawing user, the query result is that the remaining number of the cards a in the second intelligent contract instance 1 is 9, the remaining number of the cards B in the second intelligent contract instance 2 is 15, and the remaining number of the cards C in the second intelligent contract instance 3 is 12, and the remaining numbers of the cards are displayed.
In an exemplary embodiment, the obtaining module 201 is further configured to obtain the interface information of the block chain when a fourth user queries transaction details of a card, where the transaction details at least include a transfer record for drawing the card and payment information of the card; and acquiring the transaction details of the card from the interface information of the blockchain.
Illustratively, if the card drawing user a draws a card a, when inquiring the transaction details of the card a of the user, the obtaining module 201 obtains the transaction information of the card a from the interface information of the block chain, and further obtains the payment information of the card a transferred from the card drawing event host to the card drawing user a and the card drawing user a, and the like, wherein the interface may be an ethernet json-rpc interface.
It should be noted that the method of the embodiment of the present invention may also be used for extracting other articles, and the embodiment of the present invention is only described by taking a card as an example.
The card drawing system provided by this embodiment generates a random number according to the card drawing transaction information hash value sent by the user at the block node, the address information of the user, and the block hash value of the next block of the block node, and draws a card according to the random number, thereby achieving the effect of randomly drawing cards under a decentralized architecture.
The embodiment of the present invention further provides a computer device, such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a rack server, a blade server, a tower server or a rack server (including an independent server or a server cluster composed of multiple servers) capable of executing programs, and the like. As shown in fig. 10, the computer device 30 of the present embodiment at least includes but is not limited to: a memory 301, a processor 302 communicatively coupled to each other via a system bus. It is noted that fig. 10 only shows a computer device 30 with components 301-302, but it is to be understood that not all shown components are required to be implemented, and that more or fewer components may be implemented instead.
In the embodiment of the present invention, the memory 301 (i.e., the readable storage medium) includes a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. In some embodiments, the storage 301 may be an internal storage unit of the computer device 30, such as a hard disk or a memory of the computer device 30. In other embodiments, the memory 301 may also be an external storage device of the computer device 30, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like, provided on the computer device 30. Of course, the memory 301 may also include both internal and external storage units of the computer device 30. In this embodiment, the memory 301 is generally used for storing an operating system and various application software installed in the computer device 30, such as program codes of a card drawing system. In addition, the memory 301 may also be used to temporarily store various types of data that have been output or are to be output.
Processor 302 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 302 generally serves to control the overall operation of the computer device 30.
Specifically, in this embodiment, the processor 302 is configured to execute a program of a card drawing method stored in the processor 302, and when executed, the program of the card drawing method implements the following steps:
acquiring an operation instruction of card information input by a first user, and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in a block chain;
acquiring a card drawing transaction information hash value sent by a second user in a block on a block chain, address information of the second user and a block hash value of a second block based on a first intelligent contract instance in the block chain, wherein the second block is a next block of the first block;
generating a random number according to the card drawing transaction information hash value, the address information of the second user and the block hash value of the second block;
and opening the card according to the random number and the first intelligent contract instance, and displaying the card opening result.
The specific embodiment process of the above method steps can refer to the embodiment of the above card extraction method, and details are not repeated here.
Embodiments of the present invention further provide a computer-readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application mall, etc., on which a computer program is stored, which when executed by a processor implements the following method steps:
acquiring an operation instruction of a first user for inputting card information, and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in a block chain;
acquiring a card drawing transaction information hash value sent by a second user in a block on a block chain, address information of the second user and a block hash value of the second block based on a first intelligent contract instance in the block chain, wherein the second block is a next block of the first block;
generating a random number according to the hash value of the card drawing transaction information, the address information of the second user and the block hash value of the second block;
and opening the card according to the random number and the first intelligent contract instance, and displaying the card opening result.
The specific embodiment process of the above method steps can refer to the embodiment of the above card extraction method, and details are not repeated here.
The computer device and the readable storage medium provided in this embodiment generate a random number according to the hash value of the card drawing transaction information sent by the user at the block node, the address information of the user, and the hash value of the block of the next block of the block node, and draw a card according to the random number, thereby achieving the effect of randomly drawing a card under a decentralized architecture.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A card drawing method is characterized by comprising the following steps:
acquiring an operation instruction of a first user for inputting card information, and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in a block chain;
acquiring a card drawing transaction information hash value sent by a first block of a second user on the block chain, address information of the second user and a block hash value of a second block based on the first intelligent contract instance, wherein the second block is a next block of the first block;
generating a random number according to the card drawing transaction information hash value, the address information of the second user and the block hash value of the second block;
and opening the card according to the random number and the first intelligent contract instance, and displaying the card opening result.
2. The card drawing method according to claim 1, further comprising:
acquiring card information, wherein the card information at least comprises attribute information of cards and the number of the cards;
counting the total number of cards of each attribute information according to the attribute information;
generating a second intelligent contract instance corresponding to the cards of each attribute information according to the total number of the cards of each attribute information, the attribute information and a second intelligent contract template;
placing a plurality of second intelligent contract instances in the first intelligent contract instance according to a preset rule to determine the placement positions of the plurality of second intelligent contract instances in the first intelligent contract instance;
when the card opening success is detected, updating the placement positions of the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the card opening result, and recording the transaction information on the block chain;
and acquiring the updated second intelligent contract instance and the updated first intelligent contract instance.
3. The method for drawing cards according to claim 2, wherein the updating the placement positions of the second smart contract instance and the second smart contract instance in the first smart contract instance according to the card opening result when the card opening success is detected comprises:
acquiring target cards corresponding to the card opening result, and calculating the target number of the target cards;
subtracting the target quantity from the total quantity of the target cards in the target second intelligent contract example corresponding to the target cards to obtain the residual quantity of the target cards in the target second intelligent contract example;
updating the placement positions of the first intelligent contract instance, the second intelligent contract instance and the second intelligent contract instance in the first intelligent contract instance according to the remaining number of the target cards.
4. The card drawing method according to claim 1, wherein the obtaining of the card drawing transaction information hash value initiated by a second user at a first block on the blockchain, the address information of the second user and the block hash value of the second block based on a first intelligent contract template in the blockchain comprises:
acquiring a card drawing transaction request initiated by the second user;
responding to the card drawing transaction request, when payment information of the second user is received, generating a corresponding to-be-opened card record according to the payment information, and generating a hash value of the card drawing transaction information according to the to-be-opened card record;
recording node information of the first block on which the second user performs payment operation on the block chain;
and when detecting the uplink of the second block, acquiring the block hash value of the second block.
5. The card drawing method of claim 1, wherein the generating a random number according to the card drawing transaction information hash value, the address information of the second user and the block hash value of the second block comprises:
calculating the hash value of the card drawing transaction information, the address information of the user and the block hash value of the second block according to a preset packing and encoding algorithm to obtain a calculation result;
and generating the random number according to the calculation result.
6. A method for drawing cards according to claim 2 wherein said opening cards in accordance with said random number and said first smart contract instance comprises:
counting the total number of all cards according to the total number of the cards of each attribute information;
performing remainder calculation on the total number of all the cards by using the random number to obtain a remainder result;
and transferring the card of the second intelligent contract instance in the first intelligent contract instance at the same placement position as the surplus result to the account of the second user.
7. The card drawing method according to claim 2, further comprising:
when an instruction that a third user inquires the card number of each attribute information is received, acquiring the updated second intelligent contract instance;
acquiring the number of cards in each updated second intelligent contract instance according to the first intelligent contract instance and the updated second intelligent contract instance;
and displaying the number of cards in each updated second intelligent contract instance.
8. The card drawing method according to claim 2, further comprising:
when receiving transaction details of a fourth user inquiring a card, acquiring interface information of the block chain, wherein the transaction details at least comprise a transfer record for extracting the card and payment information of the card;
and acquiring the transaction details of the card from the interface information of the blockchain, and displaying the transaction details of the card.
9. A card drawing system, comprising:
the acquisition module is used for acquiring an operation instruction of card information input by a first user and generating a first intelligent contract instance according to the operation instruction and a first intelligent contract template in the block chain;
the obtaining module is further configured to obtain, based on a first intelligent contract instance in a block chain, a card drawing transaction information hash value sent by a second user in a first block on the block chain, address information of the second user, and a block hash value of a second block, where the second block is a next block of the first block;
the generation module is used for generating a random number according to the hash value of the card drawing transaction information, the address information of the second user and the block hash value of the second block;
and the card opening module is used for opening the card according to the random number and the first intelligent contract instance and displaying the card opening result.
10. A computer device, the computer device comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the card drawing method according to any one of claims 1 to 8 when executing the computer program.
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