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annotate src/zamikongine/thing.nim @ 480:14e5151f68d1

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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
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480
14e5151f68d1 did: introduce scene graph, meshs and generic vertex buffers
Sam <sam@basx.dev>
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1 {.experimental: "codeReordering".}
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2
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3 type
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4 Part* = object of RootObj
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5 thing: ref Thing
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6
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7 Thing* = object of RootObj
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8 parent*: ref Thing
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9 children*: seq[ref Thing]
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10 parts*: seq[ref Part]
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11
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12 iterator partsOfType*[T: ref Part](root: ref Thing): T =
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13 var queue = @[root]
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14 while queue.len > 0:
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15 let thing = queue.pop
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16 for part in thing.parts:
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17 if part of T:
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18 yield T(part)
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19 for child in thing.children:
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20 queue.insert(child, 0)