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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,82 @@ | ||
| pragma solidity ^0.6.0; | ||
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| interface ICurve { | ||
| function minSupply() external view returns (uint256); | ||
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| function maxSupply() external view returns (uint256); | ||
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| function minCeiling() external view returns (uint256); | ||
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| function maxCeiling() external view returns (uint256); | ||
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| function calcCeiling(uint256 _supply) external view returns (uint256); | ||
| } | ||
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| abstract contract Curve is ICurve { | ||
| /* ========== EVENTS ========== */ | ||
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| event MinSupplyChanged( | ||
| address indexed operator, | ||
| uint256 _old, | ||
| uint256 _new | ||
| ); | ||
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| event MaxSupplyChanged( | ||
| address indexed operator, | ||
| uint256 _old, | ||
| uint256 _new | ||
| ); | ||
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| event MinCeilingChanged( | ||
| address indexed operator, | ||
| uint256 _old, | ||
| uint256 _new | ||
| ); | ||
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| event MaxCeilingChanged( | ||
| address indexed operator, | ||
| uint256 _old, | ||
| uint256 _new | ||
| ); | ||
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| /* ========== STATE VARIABLES ========== */ | ||
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| uint256 public override minSupply; | ||
| uint256 public override maxSupply; | ||
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| uint256 public override minCeiling; | ||
| uint256 public override maxCeiling; | ||
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| /* ========== GOVERNANCE ========== */ | ||
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| function setMinSupply(uint256 _newMinSupply) public virtual { | ||
| uint256 oldMinSupply = minSupply; | ||
| minSupply = _newMinSupply; | ||
| emit MinSupplyChanged(msg.sender, oldMinSupply, _newMinSupply); | ||
| } | ||
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| function setMaxSupply(uint256 _newMaxSupply) public virtual { | ||
| uint256 oldMaxSupply = maxSupply; | ||
| maxSupply = _newMaxSupply; | ||
| emit MaxSupplyChanged(msg.sender, oldMaxSupply, _newMaxSupply); | ||
| } | ||
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| function setMinCeiling(uint256 _newMinCeiling) public virtual { | ||
| uint256 oldMinCeiling = _newMinCeiling; | ||
| minCeiling = _newMinCeiling; | ||
| emit MinCeilingChanged(msg.sender, oldMinCeiling, _newMinCeiling); | ||
| } | ||
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| function setMaxCeiling(uint256 _newMaxCeiling) public virtual { | ||
| uint256 oldMaxCeiling = _newMaxCeiling; | ||
| maxCeiling = _newMaxCeiling; | ||
| emit MaxCeilingChanged(msg.sender, oldMaxCeiling, _newMaxCeiling); | ||
| } | ||
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| function calcCeiling(uint256 _supply) | ||
| external | ||
| view | ||
| virtual | ||
| override | ||
| returns (uint256); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| pragma solidity ^0.6.0; | ||
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| import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol'; | ||
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| import {Operator} from '../owner/Operator.sol'; | ||
| import {Curve} from './Curve.sol'; | ||
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| contract LinearThreshold is Operator, Curve { | ||
| using SafeMath for uint256; | ||
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| /* ========== CONSTRUCTOR ========== */ | ||
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| constructor( | ||
| uint256 _minSupply, | ||
| uint256 _maxSupply, | ||
| uint256 _minCeiling, | ||
| uint256 _maxCeiling | ||
| ) public { | ||
| minSupply = _minSupply; | ||
| maxSupply = _maxSupply; | ||
| minCeiling = _minCeiling; | ||
| maxCeiling = _maxCeiling; | ||
| } | ||
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| /* ========== GOVERNANCE ========== */ | ||
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| function setMinSupply(uint256 _newMinSupply) public override onlyOperator { | ||
| super.setMinSupply(_newMinSupply); | ||
| } | ||
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| function setMaxSupply(uint256 _newMaxSupply) public override onlyOperator { | ||
| super.setMaxSupply(_newMaxSupply); | ||
| } | ||
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| function setMinCeiling(uint256 _newMinCeiling) | ||
| public | ||
| override | ||
| onlyOperator | ||
| { | ||
| super.setMinCeiling(_newMinCeiling); | ||
| } | ||
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| function setMaxCeiling(uint256 _newMaxCeiling) | ||
| public | ||
| override | ||
| onlyOperator | ||
| { | ||
| super.setMaxCeiling(_newMaxCeiling); | ||
| } | ||
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| /* ========== VIEW FUNCTIONS ========== */ | ||
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| function calcCeiling(uint256 _supply) | ||
| public | ||
| view | ||
| override | ||
| returns (uint256) | ||
| { | ||
| if (_supply <= minSupply) { | ||
| return maxCeiling; | ||
| } | ||
| if (_supply >= maxSupply) { | ||
| return minCeiling; | ||
| } | ||
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| uint256 slope = | ||
| maxCeiling.sub(minCeiling).mul(1e18).div(maxSupply.sub(minSupply)); | ||
| uint256 ceiling = | ||
| maxCeiling.sub(slope.mul(_supply.sub(minSupply)).div(1e18)); | ||
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| return ceiling; | ||
| } | ||
| } |
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