Score.java

package baseball.model;

public class Score {
    private final int strikes;
    private final int balls;
    private final int length;

    private Score(int strikes, int balls, int length) {
        this.strikes = strikes;
        this.balls = balls;
        this.length = length;
    }

    public static Score of(int strikes, int balls, int length) {
        if (strikes < 0 || balls < 0) {
            throw new IllegalArgumentException("스트라이크/볼은 음수일 수 없습니다.");
        }
        return new Score(strikes, balls, length);
    }

    public int getStrikes() {
        return strikes;
    }

    public int getBalls() {
        return balls;
    }

    public boolean isAllStrike() {
        return strikes == length;
    }

    public boolean isNothing() {
        return strikes == 0 && balls == 0;
    }
}