Function getMaterialFilter

plugins/buildingplan/buildingplan.cpp:957–1003

}

static int getMaterialFilter(lua_State *L) {
    color_ostream *out = Lua::GetOutput(L);
    if (!out)
        out = &Core::getInstance().getConsole();
    df::building_type type = (df::building_type)luaL_checkint(L, 1);
    int16_t subtype = luaL_checkint(L, 2);
    int32_t custom = luaL_checkint(L, 3);
    int index = luaL_checkint(L, 4);
    DEBUG(control,*out).print(
            "entering getMaterialFilter building_type={} subtype={} custom={} index={}\n",
            ENUM_AS_STR(type), subtype, custom, index);
    BuildingTypeKey key(type, subtype, custom);
    auto &filters = get_item_filters(*out, key).getItemFilters();
    if (index < 0 || filters.size() <= (size_t)index)
        return 0;
    const auto &mat_filter = filters[index].getMaterials();
    map<MaterialInfo, int32_t> counts;
    scanAvailableItems(*out, type, subtype, custom, index, false, false, NULL, NULL, &counts);
    HeatSafety heat = get_heat_safety_filter(key);
    const df::job_item *jitem = get_job_items(*out, key)[index];
    // name -> {count=int, enabled=bool, category=string, heat=string}
    map<string, map<string, string>> ret;
    for (auto & entry : mat_cache) {
        auto &mat = entry.second.first;
        if (!mat.matches(jitem))
            continue;
        if (!matchesHeatSafety(mat.type, mat.index, heat))
            continue;
        string heat_safety = "";
        if (matchesHeatSafety(mat.type, mat.index, HEAT_SAFETY_MAGMA))
            heat_safety = "magma-safe";
        else if (matchesHeatSafety(mat.type, mat.index, HEAT_SAFETY_FIRE))
            heat_safety = "fire-safe";
        auto &name = entry.first;
        auto &cat = entry.second.second;
        map<string, string> props;
        string count = "0";
        if (counts.count(mat))
            count = int_to_string(counts.at(mat));
        props.emplace("count", count);
        props.emplace("enabled", (!mat_filter.size() || mat_filter.count(mat)) ? "true" : "false");
        props.emplace("category", cat);
        ret.emplace(name, props);
    }
    Lua::Push(L, ret);
    return 1;
}

static void setChooseItems(color_ostream &out, df::building_type type, int16_t subtype, int32_t custom, int choose) {
    DEBUG(control,out).print(