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dodo circulation helper

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This commit is contained in:
mingda
2021-02-01 13:31:03 +08:00
parent e792d15736
commit 58339f08c1
1 changed files with 27 additions and 21 deletions
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48
contracts/DODOToken/DODOCirculationHelper.sol
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@@ -1,4 +1,4 @@
/*
/*
Copyright 2020 DODO ZOO.
SPDX-License-Identifier: Apache-2.0
@@ -10,10 +10,7 @@ pragma experimental ABIEncoderV2;
import {IERC20} from "../intf/IERC20.sol";
import {SafeMath} from "../lib/SafeMath.sol";
import {DecimalMath} from "../lib/DecimalMath.sol";
import {InitializableOwnable} from "../lib/InitializableOwnable.sol";
import {SafeERC20} from "../lib/SafeERC20.sol";
import {ReentrancyGuard} from "../lib/ReentrancyGuard.sol";
import {IDODOApproveProxy} from "../SmartRoute/DODOApproveProxy.sol";
import {Ownable} from "../lib/Ownable.sol";
interface IDODOCirculationHelper {
// vDODO 锁仓不算流通
@@ -30,16 +27,30 @@ contract DODOCirculationHelper is Ownable {
address immutable _DODO_TOKEN_;
address[] _LOCKED_CONTRACT_ADDRESS_;
uint256 public _MIN_PENALTY_RATIO_ = 5 * 10**16; // 5%
uint256 public _MIN_PENALTY_RATIO_ = 5 * 10**16; // 5%
uint256 public _MAX_PENALTY_RATIO_ = 15 * 10**16; // 15%
// ============= Helper and calculation function ===============
function getVDODOWithdrawFeeRatio() internal returns (uint256) {
uint256 dodoCirculationAmout =
IDODOCirculationHelper(_DODO_CIRCULATION_HELPER_).getCirculation();
// (x - 1)^2 / 81 + (y - 15)^2 / 100 = 1 ==> y = sqrt(100* (x*x +2x ) / 81)) +15
constructor(address dodoToken) public {
_DODO_TOKEN_ = dodoToken;
} // todo
function addLockedContractAddress(address lockedContract) external onlyOwner {} // todo
function removeLockedContractAddress(address lockedContract) external onlyOwner {} // todo
function getCirculation() public view returns (uint256 circulation) {
circulation = 10**9;
for (uint256 i = 0; i < _LOCKED_CONTRACT_ADDRESS_.length; i++) {
circulation -= IERC20(_DODO_TOKEN_).balanceOf(_LOCKED_CONTRACT_ADDRESS_[i]);
}
}
function getVDODOWithdrawFeeRatio() external view returns (uint256 ratio) {
uint256 dodoCirculationAmout = getCirculation();
// (x - 1)^2 / 81 + (y - 15)^2 / 100 = 1
// y = 5% (x ≤ 1)
// y = 15% (x ≥ 10)
// y = 15% - 10% * sqrt(1-[(x-1)/9]^2)
uint256 x =
DecimalMath.divCeil(
dodoCirculationAmout,
@@ -51,16 +62,11 @@ contract DODOCirculationHelper is Ownable {
} else if (x >= 10**19) {
return _MAX_PENALTY_RATIO_;
} else {
uint256 xSubOne = x.sub(DecimalMath.ONE);
xSubOne.sub(9)
uint256 rewardAmount =
uint256(81 * 10**18).sub(xSubOne.mul(xSubOne)).mul(100).div(81).sqrt().add(15);
return rewardAmount;
uint256 xTemp = x.sub(DecimalMath.ONE).div(9);
uint256 premium = DecimalMath.ONE2.sub(xTemp.mul(xTemp)).sqrt();
ratio =
_MAX_PENALTY_RATIO_ -
DecimalMath.mulFloor(_MAX_PENALTY_RATIO_ - _MIN_PENALTY_RATIO_, premium);
}
}
}