oreOrCrystalRegex top-level property
regex to get if a schematic is ore or crystal or null
Implementation
RegExp oreOrCrystalRegex = RegExp(r"(crystal|ore)_t[0-9]+");
regex to get if a schematic is ore or crystal or null
RegExp oreOrCrystalRegex = RegExp(r"(crystal|ore)_t[0-9]+");