Mercurial > games > semicongine

view src/zamikongine/thing.nim @ 19:b55d6ecde79d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
did: introduce scene graph, meshs and generic vertex buffers
author Sam <sam@basx.dev>
date Mon, 09 Jan 2023 11:04:19 +0700
parents
children b1b05d4efb52
line wrap: on
line source

{.experimental: "codeReordering".}

type
  Part* = object of RootObj
    thing: ref Thing

  Thing* = object of RootObj
    parent*: ref Thing
    children*: seq[ref Thing]
    parts*: seq[ref Part]

iterator partsOfType*[T: ref Part](root: ref Thing): T =
  var queue = @[root]
  while queue.len > 0:
    let thing = queue.pop
    for part in thing.parts:
      if part of T:
        yield T(part)
    for child in thing.children:
      queue.insert(child, 0)