LibUtils

Functions

simple rng calculation

complexity needs to be increased in prod

function random(uint256 r1, uint256 r2) internal view returns (uint256 r);

Parameters

Name	Type	Description
`r1`	`uint256`	first source of randomness
`r2`	`uint256`	second source of randomness

Returns

Name	Type	Description
`r`	`uint256`	random value

Returns the largest of two numbers.

function max(int32 a, int32 b) internal pure returns (int32);

Returns the smallest of two numbers.

function min(int32 a, int32 b) internal pure returns (int32);

Clamps return value to _upperBound

function clamp(uint256 _value, uint256 _upperBound) internal pure returns (uint256);

Parameters

Name	Type	Description
`_value`	`uint256`	value to be clamped
`_upperBound`	`uint256`	upper bound

Returns

Name	Type	Description
`<none>`	`uint256`	clamped value

Returns the absolute value

function abs(int32 x) internal pure returns (int32);

Returns the absolute difference

function absDif(int32 a, int32 b) internal pure returns (uint32);

Conversion from address to bytes32

function addressToEntityKey(address _address) internal pure returns (bytes32 key);

Removes an element from an array of bytes32 if it exists and returns the new array.

function removeFromArray(bytes32[] memory array, bytes32 element) internal pure returns (bytes32[] memory);

Parameters

Name	Type	Description
`array`	`bytes32[]`	The original array of `bytes32` elements.
`element`	`bytes32`	The `bytes32` element to be removed from the array.

Returns

Name	Type	Description
`<none>`	`bytes32[]`	newArray The new array containing all elements of the original array except for the removed element.

Checks equality of two strings

function stringEq(string memory a, string memory b) internal pure returns (bool);

Subtract without underflow

function safeSubtract(uint256 a, uint256 b) internal pure returns (uint256);

Check if an element is included in an array

function arrayIncludes(bytes14[] memory array, bytes14 element) internal pure returns (bool);

Parameters

Name	Type	Description
`array`	`bytes14[]`	The array to check
`element`	`bytes14`	The element to check for