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Sun

This page has not been updated yet for BIP-34, which made significant changes to the gm incentive mechanism, or BIP-37, which updated the Beanstalk oracle. The Season Facet page is up to date.
The Sun advances Beanstalk to the next Season through the sunrise function in the Season Facet. Every time an hour passes, sunrise can be called 1 more time.
The Season Facet has several subcontracts:
  • ​Oracle.sol -> Calculates the time weighted average number of Beans that Bean is above/below its value peg in all pools on the Oracle Whitelist.
  • ​Weather.sol -> Changes the Max Temperature (interest rate) depending on the Bean price, debt level and demand for Soil.
  • ​Sun.sol -> Sets the Soil for the next Season and mints new Beans if Oracle returns deltaB > 0 and distributes them as follows:
    • Up to 1/3 to Active Fertilizer holders (see Barn);
    • Up to 1/2 of the remaining amount to Pod holders (see Field); and
    • The rest to Stalkholders in the Silo (see Silo).
sunrise does the following steps:
  1. 1.
    Increments the Season number;
  2. 2.
    Calls Oracle to get deltaB;
  3. 3.
    Calls Weather to adjust the Max Temperature and checks for Rain and Season of Plenty;
  4. 4.
    Calls Sun to set the Soil and mint Beans if deltaB > 0; and
  5. 5.
    Pays msg.sender Beans for paying the transaction fee associated with calling the function.
In the Beanstalk ecosystem,
  • Rain is referred to as Oversaturation; and
  • Season of Plenty is referred to as Flood.