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feat(input): #89 cursor capture — Input.cursor_mode (hide/lock/confine)
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A windowed action game can hide the OS cursor and lock/confine the mouse to the
window. Input.cursor_mode(mode): 0 normal, 1 hidden (draw your own reticle),
2 locked (hidden + dissociated — the mouse feeds relative motion via
Input.mouse_dx/dy and Input.mouse_x/y is a clamped virtual cursor, FPS/twin-stick
aim), 3 confined (dissociated but visible; the mouse can't leave the window).
The platform auto-releases (shows + reconnects) while the window is not key
(Cmd-Tab) and on close, so the cursor is never left captured. Headless it is a
no-op (DCE'd).

Native macOS impl in cocoa.ll: [NSCursor hide]/[unhide] (ref-counted, toggled
only on change so the count stays balanced across focus changes),
CGAssociateMouseAndMouseCursorPosition, and CGGetLastMouseDelta for the relative
virtual cursor, behind a new win_cursor_mode intrinsic. Windowed-only behaviour
(not in the headless golden suite); example compiles headless and links
windowed. Full suite 115/0, fixpoint holds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-02 08:06:34 +03:00
parent f3f1336882
commit 3eb5447f74
11 changed files with 26543 additions and 26240 deletions
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1
selfhost/backend/emit_call.ludic
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@ -263,6 +263,7 @@ function emit_ns_call(ns: pointer, meth: pointer, e: Node) -> Val {
if (meth == "touch_x") { bare = "input_touch_x"; push(labels, "index") }
if (meth == "touch_y") { bare = "input_touch_y"; push(labels, "index") }
if (meth == "set_touch") { bare = "input_set_touch"; push(labels, "index"); push(labels, "x"); push(labels, "y"); push(labels, "active") }
if (meth == "cursor_mode") { bare = "input_cursor_mode"; push(labels, "mode") } # #89 cursor capture
}
# Audio.* (#22) — sfx/music playback over the platform audio backend
# (runtime/native/audio.ludic + audio.ll). Playback is out-of-band; the