Fully Automatic System

Chainlink Automation is used as the solution to make lottery game can run endlessly.

Basically, Lottery Smart Contract is Keeper-compatible. -> Upkeep on BSC

“performUpkeep” function in Lottery Smart Contract is designed to:

  • Change state of a round: Start -> Active -> End

  • Round state is Start: proceed to transfer tokens from Auto Pool to Lottery Pool based on settings in Auto Pool of players.

  • Round state is End:

    • Recalculate tickets of players, reset Hold Tickets to zero if they do not hold enough token as recognized in the first deposit.

    • Call to Chainlink VRF to get randomness numbers

    • Find winners based on random numbers

    • Reward the prize winners

    • Initialize new round

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