private int calcPlusDef() {
		if (plus <= 0 || plus > 15) {
			return 0;
		}

		if (typ.equals(ItemTyp.PLATE)) {
			return plus_plate[plus];
		}
		if (typ.equals(ItemTyp.HEAVY)) {
			return plus_heavy[plus];
		}
		if (typ.equals(ItemTyp.LIGHT)) {
			return plus_light[plus];
		}

		return plus_cloth[plus];
	}