fromJson static method

MonsterSchema? fromJson(dynamic value)

Returns a new MonsterSchema instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static MonsterSchema? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      assert(json.containsKey(r'name'),
          'Required key "MonsterSchema[name]" is missing from JSON.');
      assert(json[r'name'] != null,
          'Required key "MonsterSchema[name]" has a null value in JSON.');
      assert(json.containsKey(r'code'),
          'Required key "MonsterSchema[code]" is missing from JSON.');
      assert(json[r'code'] != null,
          'Required key "MonsterSchema[code]" has a null value in JSON.');
      assert(json.containsKey(r'level'),
          'Required key "MonsterSchema[level]" is missing from JSON.');
      assert(json[r'level'] != null,
          'Required key "MonsterSchema[level]" has a null value in JSON.');
      assert(json.containsKey(r'type'),
          'Required key "MonsterSchema[type]" is missing from JSON.');
      assert(json[r'type'] != null,
          'Required key "MonsterSchema[type]" has a null value in JSON.');
      assert(json.containsKey(r'hp'),
          'Required key "MonsterSchema[hp]" is missing from JSON.');
      assert(json[r'hp'] != null,
          'Required key "MonsterSchema[hp]" has a null value in JSON.');
      assert(json.containsKey(r'attack_fire'),
          'Required key "MonsterSchema[attack_fire]" is missing from JSON.');
      assert(json[r'attack_fire'] != null,
          'Required key "MonsterSchema[attack_fire]" has a null value in JSON.');
      assert(json.containsKey(r'attack_earth'),
          'Required key "MonsterSchema[attack_earth]" is missing from JSON.');
      assert(json[r'attack_earth'] != null,
          'Required key "MonsterSchema[attack_earth]" has a null value in JSON.');
      assert(json.containsKey(r'attack_water'),
          'Required key "MonsterSchema[attack_water]" is missing from JSON.');
      assert(json[r'attack_water'] != null,
          'Required key "MonsterSchema[attack_water]" has a null value in JSON.');
      assert(json.containsKey(r'attack_air'),
          'Required key "MonsterSchema[attack_air]" is missing from JSON.');
      assert(json[r'attack_air'] != null,
          'Required key "MonsterSchema[attack_air]" has a null value in JSON.');
      assert(json.containsKey(r'res_fire'),
          'Required key "MonsterSchema[res_fire]" is missing from JSON.');
      assert(json[r'res_fire'] != null,
          'Required key "MonsterSchema[res_fire]" has a null value in JSON.');
      assert(json.containsKey(r'res_earth'),
          'Required key "MonsterSchema[res_earth]" is missing from JSON.');
      assert(json[r'res_earth'] != null,
          'Required key "MonsterSchema[res_earth]" has a null value in JSON.');
      assert(json.containsKey(r'res_water'),
          'Required key "MonsterSchema[res_water]" is missing from JSON.');
      assert(json[r'res_water'] != null,
          'Required key "MonsterSchema[res_water]" has a null value in JSON.');
      assert(json.containsKey(r'res_air'),
          'Required key "MonsterSchema[res_air]" is missing from JSON.');
      assert(json[r'res_air'] != null,
          'Required key "MonsterSchema[res_air]" has a null value in JSON.');
      assert(json.containsKey(r'critical_strike'),
          'Required key "MonsterSchema[critical_strike]" is missing from JSON.');
      assert(json[r'critical_strike'] != null,
          'Required key "MonsterSchema[critical_strike]" has a null value in JSON.');
      assert(json.containsKey(r'initiative'),
          'Required key "MonsterSchema[initiative]" is missing from JSON.');
      assert(json[r'initiative'] != null,
          'Required key "MonsterSchema[initiative]" has a null value in JSON.');
      assert(json.containsKey(r'min_gold'),
          'Required key "MonsterSchema[min_gold]" is missing from JSON.');
      assert(json[r'min_gold'] != null,
          'Required key "MonsterSchema[min_gold]" has a null value in JSON.');
      assert(json.containsKey(r'max_gold'),
          'Required key "MonsterSchema[max_gold]" is missing from JSON.');
      assert(json[r'max_gold'] != null,
          'Required key "MonsterSchema[max_gold]" has a null value in JSON.');
      assert(json.containsKey(r'drops'),
          'Required key "MonsterSchema[drops]" is missing from JSON.');
      assert(json[r'drops'] != null,
          'Required key "MonsterSchema[drops]" has a null value in JSON.');
      return true;
    }());

    return MonsterSchema(
      name: mapValueOfType<String>(json, r'name')!,
      code: mapValueOfType<String>(json, r'code')!,
      level: mapValueOfType<int>(json, r'level')!,
      type: MonsterType.fromJson(json[r'type'])!,
      hp: mapValueOfType<int>(json, r'hp')!,
      attackFire: mapValueOfType<int>(json, r'attack_fire')!,
      attackEarth: mapValueOfType<int>(json, r'attack_earth')!,
      attackWater: mapValueOfType<int>(json, r'attack_water')!,
      attackAir: mapValueOfType<int>(json, r'attack_air')!,
      resFire: mapValueOfType<int>(json, r'res_fire')!,
      resEarth: mapValueOfType<int>(json, r'res_earth')!,
      resWater: mapValueOfType<int>(json, r'res_water')!,
      resAir: mapValueOfType<int>(json, r'res_air')!,
      criticalStrike: mapValueOfType<int>(json, r'critical_strike')!,
      initiative: mapValueOfType<int>(json, r'initiative')!,
      effects: SimpleEffectSchema.listFromJson(json[r'effects']),
      minGold: mapValueOfType<int>(json, r'min_gold')!,
      maxGold: mapValueOfType<int>(json, r'max_gold')!,
      drops: DropRateSchema.listFromJson(json[r'drops']),
    );
  }
  return null;
}