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feat(lang): strict numbers in float files; render3d on float

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A numbers float file adapts decimal literals to a fixed operand or slot, and refuses to
promote a computed int to a float implicitly: there it is almost always float bits. Explicit
float(x) is always allowed.

render3d's numbers are float, converted by tools/migrate/floatbits.py - a whole-program
inference of which ints carried IEEE bits (union-find over flows, calls, returns, buffers,
nested buffers and lexical scopes) and a rewriter to operators, Math.* and float literals,
with float_bits / float_from_bits left only where bits really cross (runtime scratch
buffers, mixed buffers). Seed regenerated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-23 17:13:25 +03:00
parent 3ac0d8d5cb
commit cc89fc37a4
35 changed files with 57282 additions and 54382 deletions
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8
packages/ludic.render3d/mesh.ludic
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@ -25,16 +25,16 @@ function mesh_draw_instanced(m: Mesh, n: int) -> void { gpu_draw_mesh_instanced(
# A flat n x n vertex grid over [-half, half]^2 in x/z, y = 0. Attribute 0 = (x, z).
# The terrain vertex shader lifts it with the height map.
function mesh_grid(n: int, half: int) -> Mesh {
function mesh_grid(n: int, half: float) -> Mesh {
let m = gpu_mesh_new()
let nv = n * n
let v = gl_floats(nv * 2)
var k = 0
for j in 0 .. n {
for i in 0 .. n {
let x = f_sub(f_mul(f_mul(fr(i, n - 1), F_TWO), half), half)
let z = f_sub(f_mul(f_mul(fr(j, n - 1), F_TWO), half), half)
gl_put_bits(v, k, x); gl_put_bits(v, k + 1, z)
let x = float(i) / float(n - 1) * 2.0 * half - half
let z = float(j) / float(n - 1) * 2.0 * half - half
gl_put_bits(v, k, float_bits(x)); gl_put_bits(v, k + 1, float_bits(z))
k += 2
}
}