Cover.act.keep: def of gralha-coverage@0.1.0.1
Import: import gralha-coverage@0.1.0.1/cover.bend as Cover
Lines 282-286 of gralha-coverage@0.1.0.1/cover.bend: https://jend.leeeet.dev/read.txt?path=gralha-coverage@0.1.0.1/cover.bend&start_line=282&end_line=286

import Base

# The line as it will stand on scanline sy, placed into the descending list.
def act.keep(keep: Bool, +x0: F32, +y0: F32, +slope: F32, +bottom: F32, +dir: F32, +sy: F32, acc: List<&2, Act>) -> List<&2, Act>:
  match keep:
    case False{}: acc
    case True{}: act.insert(Act{(x0 + (sy - y0) * slope : F32), x0, y0, slope, bottom, dir}, acc)

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=Act
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=act.insert