AURA는 누적된 BAL에 비례하여 발행됩니다.
export const getAuraMintAmount = (
balEarned: number,
global: Omit<Global, 'auraMinter' | 'auraMinterMinted'>,
) => {
const reductionPerCliff = BigNumber.from(global.auraReductionPerCliff);
const maxSupply = BigNumber.from(global.auraMaxSupply);
const totalSupply = BigNumber.from(global.auraTotalSupply);
const totalCliffs = BigNumber.from(global.auraTotalCliffs);
const minterMinted = BigNumber.from(0);
// e.g. emissionsMinted = 6e25 - 5e25 - 0 = 1e25;
const emissionsMinted = totalSupply.sub(maxSupply).sub(minterMinted);
// e.g. reductionPerCliff = 5e25 / 500 = 1e23
// e.g. cliff = 1e25 / 1e23 = 100
const cliff = emissionsMinted.div(reductionPerCliff);
// e.g. 100 < 500
if (cliff.lt(totalCliffs)) {
// e.g. (new) reduction = (500 - 100) * 2.5 + 700 = 1700;
// e.g. (new) reduction = (500 - 250) * 2.5 + 700 = 1325;
// e.g. (new) reduction = (500 - 400) * 2.5 + 700 = 950;
const reduction = totalCliffs.sub(cliff).mul(5).div(2).add(700);
// e.g. (new) amount = 1e19 * 1700 / 500 = 34e18;
// e.g. (new) amount = 1e19 * 1325 / 500 = 26.5e18;
// e.g. (new) amount = 1e19 * 950 / 500 = 19e17;
let amount = simpleToExact(balEarned).mul(reduction).div(totalCliffs);
// e.g. amtTillMax = 5e25 - 1e25 = 4e25
const amtTillMax = maxSupply.sub(emissionsMinted);
if (amount.gt(amtTillMax)) {
amount = amtTillMax;
}
return amount;
}
return BigNumber.from(0);
};
