Orkuncakilkaya
2e0047514b
De-abbreviate the two bare fixed-point conversion builtins:
flr(f) -> int -> floor(f) -> int (fixed -> int, flooring)
fx(i) -> fixed -> fixed(i) -> fixed (int -> fixed; mirrors how the
stringify builtin is `string`)
Updates the compiler dispatch, all call sites, the grammars/LSP/JetBrains
tokens, and the docs (fn-flr -> fn-floor, fn-fx -> fn-fixed). Reseeded;
C-free fixpoint holds; all suites green (45/24/29); site + check.py OK.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
26 lines
982 B
Markdown
26 lines
982 B
Markdown
---
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id: fn-fixed
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name: fixed
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category: builtins
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kind: builtin
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tokens: fixed
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sig: fixed(n) -> fixed
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tip: Lift an integer into a Q16.16 fixed-point value.
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order: 50
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---
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Converts an integer into a <code>fixed</code> value (Ludic's Q16.16 fixed-point type), so it can take part in fractional arithmetic. Ludic has no floating point; <code>fixed</code> is how you carry sub-pixel precision for smooth movement and physics-like accumulation. Use <code>fixed</code> when you need to combine an <code>int</code> with fixed-point values or divide to get a fraction — for example <code>fixed(1) / fixed(4)</code> is <code>0.25</code>. Convert back to a whole number for drawing with <code>flr</code>.
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Parameters:
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- `n` — the integer to lift into fixed-point
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```ludic
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program SmoothAccumulate {
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handler ComputeStep phase Start {
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let full_speed = fixed(3)
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let half_speed = full_speed / fixed(2)
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let two_steps = half_speed + half_speed
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print(floor(two_steps))
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}
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}
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```
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