ludic/docs/language/math/math-abs.md

id	name	category	kind	tokens	sig	tip	order	ns	member
math-abs	Math.abs	math	namespace-method	Math.abs	Math.abs(x) -> int	The magnitude of a value, dropping its sign.	2	Math	abs

Returns the absolute value of x — its distance from zero, always non-negative. It preserves the type of its argument, so Math.abs of a fixed stays fixed. Reach for it when you care about how far apart two things are regardless of direction, such as the gap between a target and current position, or the speed behind a signed velocity. The bare form abs(x) is kept as a convenience alias.

Parameters:

• x — the value whose magnitude you want

program ChaseDistance {
  let target: int = 40
  let here: int = 12

  handler Report phase Update {
    let gap = Math.abs(target - here)   # 28, regardless of which is larger
  }
}