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add getMidPrice

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mingda
2020-07-11 01:16:26 +08:00
parent aacc3ca91e
commit e9427eafb5
1 changed files with 19 additions and 0 deletions
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19
contracts/impl/Pricing.sol
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@@ -157,6 +157,25 @@ contract Pricing is Storage {
}
}
function getMidPrice() public view returns (uint256 midPrice) {
(uint256 baseTarget, uint256 quoteTarget) = getExpectedTarget();
if (_R_STATUS_ == Types.RStatus.BELOW_ONE) {
uint256 R = DecimalMath.divFloor(
quoteTarget.mul(quoteTarget).div(_QUOTE_BALANCE_),
_QUOTE_BALANCE_
);
R = DecimalMath.ONE.sub(_K_).add(DecimalMath.mul(_K_, R));
return DecimalMath.divFloor(getOraclePrice(), R);
} else {
uint256 R = DecimalMath.divFloor(
baseTarget.mul(baseTarget).div(_BASE_BALANCE_),
_BASE_BALANCE_
);
R = DecimalMath.ONE.sub(_K_).add(DecimalMath.mul(_K_, R));
return DecimalMath.mul(getOraclePrice(), R);
}
}
function _RAboveIntegrate(
uint256 B0,
uint256 B1,