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reimplement staking multiplier

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This commit is contained in:
Hardhat Chad
2024-09-24 05:28:14 +00:00
parent b4fdfe1166
commit 74c8a1a073
1 changed files with 24 additions and 0 deletions
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24
program/src/mine.rs
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@@ -101,6 +101,30 @@ pub fn process_mine(accounts: &[AccountInfo], data: &[u8]) -> ProgramResult {
.checked_mul(2u64.checked_pow(normalized_difficulty).unwrap())
.unwrap();
// Apply staking multiplier.
//
// If user has greater than or equal to the max stake on the network, they receive 2x multiplier.
// Any stake less than this will receives between 1x and 2x multipler. The multipler is only active
// if the miner's last stake deposit was more than one minute ago to protect against flash loan attacks.
let mut bus_data = bus_info.data.borrow_mut();
let bus = Bus::try_from_bytes_mut(&mut bus_data)?;
if proof.balance.gt(&0) && proof.last_stake_at.saturating_add(ONE_MINUTE).lt(&t) {
// Calculate staking reward.
if config.top_balance.gt(&0) {
let staking_reward = (reward as u128)
.checked_mul(proof.balance.min(config.top_balance) as u128)
.unwrap()
.checked_div(config.top_balance as u128)
.unwrap() as u64;
reward = reward.checked_add(staking_reward).unwrap();
}
// Update bus stake tracker.
if proof.balance.gt(&bus.top_balance) {
bus.top_balance = proof.balance;
}
}
// Apply boosts.
//
// If user has greater than or equal to the max stake on the network, they receive 2x multiplier.