Function on_new_active_unit

plugins/timestream.cpp:754–761

//

static void on_new_active_unit(color_ostream& out, void* data) {
    int32_t unit_id = reinterpret_cast<std::intptr_t>(data);
    auto unit = df::unit::find(unit_id);
    if (!unit)
        return;
    DEBUG(event,out).print("registering new unit {} ({})\n", unit->id, Units::getReadableName(unit));
    register_birthday(unit);
}

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// Lua API