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Copy pathFrame.java
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79 lines (66 loc) · 1.6 KB
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package bowling;
public class Frame {
private Integer first;
private Integer second;
public void bowl(int throwPin) {
verifyOverTwoBowlEx();
if (isReady()) {
this.first = throwPin;
verifyThrowPinEx(throwPin);
} else {
this.second = throwPin;
verifyTotalPinEx();
}
}
private void verifyTotalPinEx() {
if (first + second > 10) {
throw new IllegalArgumentException();
}
}
private void verifyThrowPinEx(int throwPin) {
if (throwPin < 0 || throwPin > 10) {
throw new IllegalArgumentException();
}
}
private void verifyOverTwoBowlEx() {
if (isFinish()) {
throw new IllegalArgumentException();
}
}
public String displayText() {
if (isReady()) {
return "";
}
if (isStrike()) {
return "X";
}
if (isFirstBowl()) {
return first + "";
}
if (isSpare()) {
return first + "|/";
}
return first + "|" + second;
}
private boolean isSpare() {
return first + second == 10;
}
private boolean isFirstBowl() {
if (isReady()) {
return false;
}
return !isStrike() && second == null;
}
private boolean isStrike() {
return first == 10;
}
private boolean isReady() {
return first == null;
}
public boolean isFinish() {
if (isReady() || isFirstBowl()) {
return false;
}
return true;
}
}