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feat(lang): functions are values (L2), and render3d takes its scene as callbacks

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fn(int, float) -> bool is a type, fn name is any top-level function's value, and a call through
a local, a global, a record field, a slice element, a parameter or a result of a function type
is an indirect call; two function types mix only when equal, a call checks its argument count,
and a value may be null (examples/functions/values.ludic). Job.parallel_for keeps its worker
check.

render3d's scene is registered rather than required by name: r3d_on_draw, r3d_on_casters and
r3d_on_stream_fill (hooks.ludic). The two rendering examples register theirs - and had defined
scene_draw_casters with no parameter while the renderer passed one, which nothing checked.
render3d declares numbers float itself; smooth.ludic is converted to floats and returns when
r3d_init fails instead of running on into a segfault. Noise.* check their argument count (a call
one short crashed the compiler). selfhost-build says why it failed. The migration tool reads a
declared float as evidence. Seed regenerated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 00:27:26 +03:00
parent dc75a5a5ab
commit 0c73287e35
23 changed files with 71430 additions and 68575 deletions
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10
examples/rendering/reload.ludic
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@ -15,7 +15,7 @@ program Reload {
# (the parser's g_uses_gl), so even a check that draws nothing presents its frame.
# render3d calls back into the program for what stands on the terrain
function scene_draw() -> void { scatter_draw() }
function scene_draw_casters() -> void { scatter_draw_casters(shadow_cascade_vp(sh_cascade)) }
function scene_draw_casters(light_vp: floats) -> void { scatter_draw_casters(light_vp) }
# no streamed cover here, but stream.ludic names the generator, so every program supplies one
function stream_fill(s: Stream, cx: int, cz: int, band: int) -> void { }
@ -39,9 +39,15 @@ program Reload {
handler Boot phase Start {
spawn Anchor {}
r3d_on_draw(fn scene_draw)
r3d_on_casters(fn scene_draw_casters)
r3d_on_stream_fill(fn stream_fill)
TERRAIN_HALF = 1000
ter_smooth = true
if not r3d_init(640, 360, "Reload") { quit() }
if not r3d_init(640, 360, "Reload") {
quit()
return
}
cam_set(F_ZERO, fi(80), fi(300), fi(180), f_neg(fi(10)))
water_init(fl(4.0), F_ZERO, F_ZERO, fi(200), fi(200))
populate()