NumberRange

Uniform random [min, max] value type, a sibling of NumberSequence and ColorSequence.

Construct

NumberRange.new(v)            -- constant range (min == max == v)
NumberRange.new(min, max)     -- random range; reversed bounds auto-ascend

Use

local r = NumberRange.new(0.5, 2.0)
print(r.min, r.max)           -- 0.5  2.0
print(r:sample())             -- uniform random in [0.5, 2.0]

Design notes

The API is a .new constructor and a :sample() draw, the constructor-first, :sample-named discipline NumberSequence and ColorSequence keep (PR #3460), so the three value types read as one API.

Issue: #2674.