Function scriptDebugHook

Engine/debug/debug.cpp:674–707

allow LShift to single-step, RShift to pause flow

// allow LShift to single-step,  RShift to pause flow
void scriptDebugHook(ScriptExecutor *exec, int linenum)
{
    if (!exec || !exec->GetRunningScript())
    {
        return; // not inside script
    }

    if (pluginsWantingDebugHooks > 0)
    {
        // a plugin is handling the debugging
        String scname = exec->GetRunningScript()->GetScriptName();
        pl_run_plugin_debug_hooks(scname.GetCStr(), linenum);
        return;
    }

    // no plugin, use built-in debugger
    if (break_on_next_script_step) 
    {
        break_on_next_script_step = 0;
        break_into_debugger();
        return;
    }

    String scriptName = exec->GetRunningScript()->GetSectionName(exec->GetPC());
    for (const auto & breakpoint : breakpoints)
    {
        if ((breakpoint.lineNumber == linenum) &&
            (scriptName.Compare(breakpoint.scriptName) == 0))
        {
            break_into_debugger();
            break;
        }
    }
}

int scrlockWasDown = 0;