cicnet/erc20-demurrage-token
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Fix demurrage in multicap

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This commit is contained in:
nolash 2021-06-08 12:06:34 +02:00
parent e894dcd3cf
commit 0b6d58f7af
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
5 changed files with 27 additions and 15 deletions
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2
python/erc20_demurrage_token/data/DemurrageTokenMultiCap.bin
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2
python/erc20_demurrage_token/data/DemurrageTokenMultiCap.json
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python/erc20_demurrage_token/data/DemurrageTokenSingleCap.bin
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34
solidity/DemurrageTokenMultiCap.sol
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@ -30,7 +30,9 @@ contract DemurrageTokenMultiCap {
uint128 public demurrageAmount;
// Cached demurrage period; the period for which demurrageAmount was calculated
uint128 public demurragePeriod;
//uint128 public demurragePeriod;
// Cached demurrage timestamp; the timestamp for which demurrageAmount was last calculated
uint256 public demurrageTimestamp;
// Implements EIP172
address public owner;
@ -112,10 +114,11 @@ contract DemurrageTokenMultiCap {
decimals = _decimals;
// Demurrage setup
periodStart = block.timestamp;
demurrageTimestamp = block.timestamp;
periodStart = demurrageTimestamp;
periodDuration = _periodMinutes * 60;
demurrageAmount = uint128(ppmDivider * 1000000); // Represents 38 decimal places
demurragePeriod = 1;
//demurragePeriod = 1;
taxLevel = _taxLevelMinute; // Represents 38 decimal places
bytes32 initialRedistribution = toRedistribution(0, 1000000, 0, 1);
redistributions.push(initialRedistribution);
@ -148,7 +151,8 @@ contract DemurrageTokenMultiCap {
baseBalance = baseBalanceOf(_account);
periodCount = actualPeriod() - demurragePeriod;
//periodCount = actualPeriod() - demurragePeriod;
periodCount = getMinutesDelta(demurrageTimestamp);
currentDemurragedAmount = uint128(decayBy(demurrageAmount, periodCount));
@ -211,7 +215,7 @@ contract DemurrageTokenMultiCap {
require(_amount + totalSupply <= supplyCap);
changePeriod();
baseAmount = _amount;
baseAmount = toBaseAmount(_amount);
totalSupply += _amount;
increaseBaseBalance(_beneficiary, baseAmount);
emit Mint(msg.sender, _beneficiary, _amount);
@ -374,22 +378,30 @@ contract DemurrageTokenMultiCap {
}
// Calculate the time delta in whole minutes passed between given timestamp and current timestamp
function getMinutesDelta(uint256 _lastTimestamp) public view returns (uint256) {
return (block.timestamp - _lastTimestamp) / 60;
}
// Calculate and cache the demurrage value corresponding to the (period of the) time of the method call
function applyDemurrage() public returns (bool) {
uint128 epochPeriodCount;
uint128 periodCount;
//uint128 epochPeriodCount;
uint256 periodCount;
uint256 lastDemurrageAmount;
uint256 newDemurrageAmount;
epochPeriodCount = actualPeriod();
periodCount = epochPeriodCount - demurragePeriod;
//epochPeriodCount = actualPeriod();
//periodCount = epochPeriodCount - demurragePeriod;
periodCount = getMinutesDelta(demurrageTimestamp);
if (periodCount == 0) {
return false;
}
lastDemurrageAmount = demurrageAmount;
demurrageAmount = uint128(decayBy(lastDemurrageAmount, periodCount));
demurragePeriod = epochPeriodCount;
emit Decayed(epochPeriodCount, periodCount, lastDemurrageAmount, demurrageAmount);
//demurragePeriod = epochPeriodCount;
demurrageTimestamp = demurrageTimestamp + (periodCount * 60);
//emit Decayed(epochPeriodCount, periodCount, lastDemurrageAmount, demurrageAmount);
emit Decayed(demurrageTimestamp, periodCount, lastDemurrageAmount, demurrageAmount);
return true;
}

2
solidity/DemurrageTokenSingleCap.sol
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@ -310,7 +310,7 @@ contract DemurrageTokenSingleCap {
// Calculate and cache the demurrage value corresponding to the (period of the) time of the method call
function applyDemurrage() public returns (bool) {
uint128 epochPeriodCount;
//uint128 epochPeriodCount;
uint256 periodCount;
uint256 lastDemurrageAmount;