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Fix the backtick crash (a /FORCE-hidden linkage bug) + backtick = view toggle

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The crash (any typed key in a glass session; found via the backtick report):
the merge-reconciliation stand-down declared extern BTRIODevicePresent at
BLOCK scope inside the extern-C BTInputSuppressKey -- the declaration
inherited C linkage, _BTRIODevicePresent went UNRESOLVED, and /FORCE bound
the call to garbage (cdb: wild call into Sensor::DefaultData from
LBE4ControlsManager::Execute's suppression check).  The tolerated-LNK2019
batch hid the new unresolved external -- the exact CLAUDE.md /FORCE trap.
Fix: the extern moved to file scope (C++ linkage); link verified clean of
_BTRIODevicePresent.

Backtick feature (per Cyd: backtick = 1st/3rd person): PadRIO edge-detects
VK_OEM_3 in its poll (focus-guarded, message-path-free) and the mech4 view
block consumes it beside the V action (which stands down with the binding
engine in glass mode).  Verified live: two real presses -> [view] COCKPIT
eyepoint -> [view] external chase, game alive.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-18 19:52:36 -05:00
co-authored by Claude Fable 5
parent 22d7a0e3b7
commit 122fb7bccb
3 changed files with 54 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
game/reconstructed/btinput.cpp
+6 -2
View File
@@ -42,6 +42,12 @@ struct BTDriveInput { float throttle; float turn; int forced; int fire; int fire
int keyFwd; int keyBack; int keyLeft; int keyRight; int allStop; };
extern BTDriveInput gBTDrive;
// FILE scope (C++ linkage!): a block-scope extern inside the extern "C"
// BTInputSuppressKey inherited C linkage -> _BTRIODevicePresent went
// UNRESOLVED, /FORCE bound the call to garbage (Sensor::DefaultData), and
// ANY typed key crashed the glass build (found via the backtick report).
extern int BTRIODevicePresent(void);
//=============================================================================
// Binding model
//=============================================================================
@@ -742,7 +748,6 @@ void
// engine on for debugging, matching the bridges' force-on.
//
{
extern int BTRIODevicePresent(void);
static const char *s_kbEnv = getenv("BT_KEY_BRIDGE");
int engine_owns = s_kbEnv ? (*s_kbEnv == '0')
: BTRIODevicePresent();
@@ -1017,7 +1022,6 @@ extern "C" int
// otherwise go dead).
//
{
extern int BTRIODevicePresent(void);
static const char *s_kbEnv = getenv("BT_KEY_BRIDGE");
int engine_owns = s_kbEnv ? (*s_kbEnv == '0')
: BTRIODevicePresent();