Function on_new_active_unit

plugins/spectate.cpp:282–286

} recent_units;

static void on_new_active_unit(color_ostream& out, void* data) {
    int32_t unit_id = reinterpret_cast<std::intptr_t>(data);
    DEBUG(event,out).print("unit {} has arrived on map\n", unit_id);
    recent_units.add(unit_id);
}

static EventManager::EventHandler new_unit_handler(plugin_self, on_new_active_unit, RECENT_UNITS_SCAN_CYCLE);