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Decompose the flat index over the content extent in structure creators

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Dennis Kobert
2026-08-17 08:09:27 +00:00
parent 932ed8653e
commit a03db0ac6c
5 changed files with 143 additions and 20 deletions
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18
node-graph/nodes/repeat/src/leveled.rs
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@@ -4,7 +4,7 @@
use core::f64::consts::TAU;
use core_types::attribute::{Attr, Transform};
use core_types::context::ExtractIndex;
use core_types::context::{ExtractIndex, IndexLink};
use core_types::extent::{ExtentIn, LevelIn, ValueIn};
use core_types::gpoll::{Extent, GPoll, Interrupt};
use core_types::registry::types::{Angle, PixelSize};
@@ -23,9 +23,11 @@ fn repeat_array<T>(
#[hard(1..)]
count: u32,
) -> Result<IList<(T, Attr<Transform>)>, Interrupt> {
let spilled = ctx.index_head();
let copy = ctx.innermost_index() % count as u64;
let (element, local) = content.eval(&ctx.promoted(&spilled, copy))?;
let inner = content.inner_extent(ctx)?;
let (copy, rest) = ctx.split_innermost(inner);
let copy = copy % count.max(1) as u64;
let mut frame = IndexLink { index: 0, outer: None };
let (element, local) = content.eval(&ctx.push_level(&mut frame, copy, rest))?;
// A single copy has no steps between copies, so the denominator stays 1.
let total = (count - 1).max(1) as f64;
@@ -58,9 +60,11 @@ fn repeat_radial<T>(
#[hard(1..)]
count: u32,
) -> Result<IList<(T, Attr<Transform>)>, Interrupt> {
let spilled = ctx.index_head();
let copy = ctx.innermost_index() % count as u64;
let (element, local) = content.eval(&ctx.promoted(&spilled, copy))?;
let inner = content.inner_extent(ctx)?;
let (copy, rest) = ctx.split_innermost(inner);
let copy = copy % count.max(1) as u64;
let mut frame = IndexLink { index: 0, outer: None };
let (element, local) = content.eval(&ctx.push_level(&mut frame, copy, rest))?;
let angle = DAffine2::from_angle((TAU / count as f64) * copy as f64 + start_angle.to_radians());
let translation = DAffine2::from_translation(radius * DVec2::Y);