Cover.tree.uniform: def of gralha-coverage@0.1.0.1
Import: import gralha-coverage@0.1.0.1/cover.bend as Cover
Lines 100-109 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=100&end_line=109

import Base
import gralha-text-scan@0.1.0.1/scan.bend as U

def tree.uniform(t: CovTree, +nx: U32, +ny: U32, +size: U32, +x0: U32, +y0: U32, +x1: U32, +y1: U32, +acc: F32) -> F32:
  match t:
    case CovFlat{v}: U.choose(F32, tree.overlaps(nx, ny, size, x0, y0, x1, y1), tree.same.as(acc, v), acc)
    case CovQuad{a, b, c, d}:
      +half = U32.div(size, 2)
      U.branch(F32, Bool.not(tree.overlaps(nx, ny, size, x0, y0, x1, y1)) || F32.is_lt(acc, F32.neg(0.5)), _ => acc,
        _ => tree.uniform(d, (nx + half : U32), (ny + half : U32), half, x0, y0, x1, y1,
          tree.uniform(c, nx, (ny + half : U32), half, x0, y0, x1, y1,
            tree.uniform(b, (nx + half : U32), ny, half, x0, y0, x1, y1,
              tree.uniform(a, nx, ny, half, x0, y0, x1, y1, acc)))))

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.neg
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.div
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=CovTree
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=tree.overlaps
  https://jend.leeeet.dev/definition.txt?path=gralha-coverage@0.1.0.1/cover.bend&name=tree.same.as
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=branch
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=choose