startEarning

$startEarning()$

• Callable only by $minter$ on the Approved TTG $earners$ List.

• Allows a user to start earning yield on their M balance. $balanceOf_{user}$ will be rewritten to store $principalOfEarningSupply_{MToken, earner}$

  • Calculates $principalOfEarningSupply_{MToken, earner} = balanceOf_{MToken, earner} / index_{now}$

  • Saves $totalPrincipalOfEarningSupply +=principalOfEarningSupply_{MToken, earner}$

  • Saves $totalNonEarningSupply -= balanceOf_{MToken, earner}$

  • Saves $balanceOf_{MToken, earner} = principalOfEarningSupply_{MToken, earner}$

  • Sets $isEarning_{MToken, earner}=true$

  • Calls $updateIndex$.