CryptoSports SmartContract

Oracle Contract

Contract Address

0x5EEa4DB64c237EC468979cf5D900F5Cb05d5838E

Variables

• eventResult
  storage of the game result, e.g. Laker vs. Bulls

• outrightResult
  storage of the outright game result, e.g. NBA 21-22 Final Winner

Functions

uploadEventResult

• Parameters

  • uint256 version: version or the event result
  • bytes resultBytes: result in bytes

• Description
  this function is only accessible for result uploader account.
  if result exist, replace it with the new result

uploadOutringtResult

• Parameters

  • uint256 version: version or the outright result
  • bytes resultBytes: result in bytes

• Description
  this function is only accessible for result uploader account.
  if result exist, replace it with the new result

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SingleBet Engine Contract

Contract Address

0xb1BF4538AfC3EAbCAe9aBCD4E0300E4A0B2907D8

Variables

• priceFactor
  the ratio of the price is increased, e.g. the price is 0.89 and we'll turn it to 89 and the price factor should be 100.
  this value should depend on the ticket version.

• hdpFactor
  the ratio of the handicap is increased, e.g. the handicap is 3.5 and we'll turn it to 350 and the handicap factor should be 100.
  this value should depend on the ticket version.

Functions

settleBet

• Parameters

  • uint256 eventId: the id of the game that want to be settled
  • address oralce: the address of the result storage
  • bytes data: ticket data in bytes

• Description
  ticket will decode and get the final result of the ticket, return the settlement and payments.

processTicket

• Parameters

  • address signer: to verify the ticket is signed with our services.
  • uint nonce: the nonce of user in SingleBet contract.
  • bytes data: ticket data with signature

• Description
  ticket will be decode and verify, after the verify, the max payout and receipt will be created base on the ticket information.

rejectBet

• Parameters

  • bytes bytesTicket: ticket data in bytes

• Description
  get return value from the ticket bytes.

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SingleBet Contract

Contract Address

0x3A4282A26A2c2f60612117E115b14fb1fcc1f1CF

Variables

• signer
  confirm the ticket is signed by our services

• settler
  this is the address to settle the ticket and transfer money to the winner

• rejecter
  if player didn't send the place bet transaction in time or we found the ticket is the DANGER ticket,
  we'll reject the ticket and return the stake amount to the player, and the reject function is only accessible with this account

• oracle
  contract address of game result

• versionEngineMap
  to prevent the version upgrade take too much time for migration the ticket,
  user send the transaction with version and data in bytes, each version will be decode and handle with the specific ticket engine contract,
  the version and the address mapping will be defined here.

• ticketsV1
  storage of the tickets

Functions

settleBet

• Parameters

  • uint256 eventId: the id of the game that want to be settled
  • uint256[] transIds: unique ticket ids

• Description
  this function is only accessible for settler account.
  get ticket from the storage ticketsV1, if ticket exist, send the eventId, oracle address and ticket data with low-level call to ticket engine.
  send token and event base on the settlement return from ticket engine.

placeBet

• Parameters

  • uint256 version: ticket version
  • bytes signedTicketBytes: ticket data with signature

• Description
  function for player to place bet, ticket will be decode with ticket engine and return a receipt of bet,
  we will transfer money from player and the licensee, and save the ticket information after the transactions success.

rejectBet

• Parameters

  • uint256[] transIds: unique ticket ids

• Description
  this function is only accessible for rejecter account.
  delete the bet listed in transIds, return token to player and delete the ticket in storage

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OutrightBet Engine Contract

Contract Address

0xfE12aE1bb4D17ed5aFD44973a30916fE39540025

Variables

• priceFactor
  the ratio of the price is increased, e.g. the price is 0.89 and we'll turn it to 89 and the price factor should be 100.
  this value should depend on the ticket version.

Functions

settleBet

• Parameters

  • uint256 leagueId: the id of the league that want to be settled
  • address oralce: the address of the result storage
  • bytes data: ticket data in bytes

• Description
  ticket will decode and get the final result of the ticket, return the settlement and payments.

processTicket

• Parameters

  • address signer: to verify the ticket is signed with our services.
  • uint nonce: the nonce of user in SingleBet contract.
  • bytes data: ticket data with signature

• Description
  ticket will be decode and verify, after the verify, the max payout and receipt will be created base on the ticket information.

rejectBet

• Parameters

  • bytes bytesTicket: ticket data in bytes

• Description
  get return value from the ticket bytes.

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OutrightBet Contract

Contract Address

0x6E203093C942542365642e1389dd92FeAf6FEcD7

Variables

• signer
  confirm the ticket is signed by our services

• settler
  this is the address to settle the ticket and transfer money to the winner

• rejecter
  if player didn't send the place bet transaction in time or we found the ticket is the DANGER ticket,
  we'll reject the ticket and return the stake amount to the player, and the reject function is only accessible with this account

• oracle
  contract address of game result

• versionEngineMap
  to prevent the version upgrade take too much time for migration the ticket,
  user send the transaction with version and data in bytes, each version will be decode and handle with the specific ticket engine contract,
  the version and the address mapping will be defined here.

• ticketsV1
  storage of the tickets

Functions

settleBet

• Parameters

  • uint256 leagueId: the id of the league that want to be settled
  • uint256[] transIds: unique ticket ids

• Description
  this function is only accessible for settler account.
  get ticket from the storage ticketsV1, if ticket exist, send the leagueId, oracle address and ticket data with low-level call to ticket engine.
  send token and event base on the settlement return from ticket engine.

placeBet

• Parameters

  • uint256 version: ticket version
  • bytes signedTicketBytes: ticket data with signature

• Description
  function for player to place bet, ticket will be decode with ticket engine and return a receipt of bet,
  we will transfer money from player and the licensee, and save the ticket information after the transactions success.

rejectBet

• Parameters

  • uint256[] transIds: unique ticket ids

• Description
  this function is only accessible for rejecter account.
  delete the bet listed in transIds, return token to player and delete the ticket in storage