Function ExtractFlatList

Source/XML/level_loader.cpp:269–283

Finds entity IDs that are used more than once, and replaces repeats with -1 so they will be automatically reassigned

// Finds entity IDs that are used more than once, and replaces repeats with -1 so they will be automatically reassigned
static void ExtractFlatList(EntityDescriptionList* desc_list, std::vector<IDAndType>& id_used) {
    uint32_t counter = 1;  // Zero is assigned to the terrain
    // bool print_results = false;
    for (auto& it : *desc_list) {
        id_used.resize(id_used.size() + 1);
        IDAndType* id_and_type = &id_used.back();
        id_and_type->desc = &it;
        id_and_type->desc->GetEditableField(EDF_ENTITY_TYPE)->ReadInt((int*)&id_and_type->type);
        id_and_type->desc->GetEditableField(EDF_ID)->ReadInt(&id_and_type->id);
        id_and_type->counter = counter++;
        if (!id_and_type->desc->children.empty()) {
            ExtractFlatList(&id_and_type->desc->children, id_used);
        }
    }
}

static void SetDescID(EntityDescription* desc, int id) {
    EntityDescriptionField* edf = desc->GetEditableField(EDF_ID);