Boolean Logic

This chapter describes a few patterns that can be used to perform boolean logic operations.

While glyphs here indicate they require a boolean input, it is worth noting that any fragment will be automatically coerced into a boolean value when required.

Boolean values are created from any fragment based on the following logic:

• If the fragment is Void , it is false .
• If the fragment is ##Zalgo## , it is false .
• If the fragment is false , it is false .
• Otherwise, it is true .

This trick allows spells to use different fragments or even branch their behaviour based on certain criteria.

Decision Distortion takes one or multiple pairs of booleans and values. The value after the first boolean that is true will be returned. If all booleans are false, a fallback value that must be specified at the end is returned instead.

For example:

Giving this trick the arguments of true, 1, 2 will make it return 1 , as the boolean forms a pair with 1 , and evaluates to true .

Alternatively:

Giving Decision Distortion the arguments of false, 1, false, 2, 3 is also valid, and will see it return the fallback value, which is 3 .

And since any fragment counts as a boolean, giving it void, 1, 2, 3, 4 will have it return 3 , since the 2 and 3 form a pair where the 2 evaluates to true .

Checks for equality between many inputs. Will only return true if all inputs are equal.

Checks for inequality between many inputs. Will return false if any input is equal to any other.

Will only return true if all inputs are true.

Will return true if any provided input is true.

Will return true if none of the provided inputs are true.

Returns whether the first number is lesser than the second.

Returns whether the first number is greater than the second.