public ScoreLabel(CharacterSource generator, CharacterSource typist) {
this.generator = new AtomicReference(generator);
this.typist = new AtomicReference(typist);
if (generator != null) generator.addCharacterListener(this);
if (typist != null) typist.addCharacterListener(this);
}
public void resetTypist(CharacterSource newTypist) {
CharacterSource oldTypist;
if (newTypist != null) newTypist.addCharacterListener(this);
oldTypist = typist.getAndSet(newTypist);
if (oldTypist != null) oldTypist.removeCharacterListener(this);
}
public void resetGenerator(CharacterSource newGenerator) {
/** 注意这个方法的算法更改逻辑 */
CharacterSource oldGenerator;
if (newGenerator != null) newGenerator.addCharacterListener(this);
oldGenerator = generator.getAndSet(newGenerator);
if (oldGenerator != null) oldGenerator.removeCharacterListener(this);
}
public void resetTypist(CharacterSource newTypist) {
try {
scoreLock.lock();
if (typist != null) typist.removeCharacterListener(this);
typist = newTypist;
if (typist != null) typist.addCharacterListener(this);
} finally {
scoreLock.unlock();
}
}
public void resetGenerator(CharacterSource newGenerator) {
try {
scoreLock.lock();
if (generator != null) generator.removeCharacterListener(this);
generator = newGenerator;
if (generator != null) generator.addCharacterListener(this);
} finally {
scoreLock.unlock();
}
}
public ScoreLabel(CharacterSource generator, CharacterSource typist) {
this.generator = generator;
this.typist = typist;
if (generator != null) generator.addCharacterListener(this);
if (typist != null) typist.addCharacterListener(this);
}