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package com.earth2me.essentials.update.states;
import com.earth2me.essentials.update.WorkListener;
import org.bukkit.entity.Player;
public abstract class AbstractState
{
private transient boolean abortion = false;
private final transient StateMap stateMap;
public AbstractState(final StateMap stateMap)
{
this.stateMap = stateMap;
}
public AbstractState getState(final Class<? extends AbstractState> stateClass)
{
return stateMap.get(stateClass);
}
public abstract AbstractState getNextState();
/**
* Check if we already know the answer, so the user does not have to answer the question.
*
* @return true, if the answer could be guessed.
*/
public boolean guessAnswer()
{
return false;
}
/**
* Ask the user the question.
* @param sender
*/
public abstract void askQuestion(Player sender);
/**
* React on the answer and set internal variables
* @param answer
* @return true, if the answer could be recognized as a valid answer
*/
public abstract boolean reactOnAnswer(String answer);
public final AbstractState reactOnAnswer(final Player sender, final String answer)
{
final String trimmedAnswer = answer.trim();
if (trimmedAnswer.equalsIgnoreCase("quit")
|| trimmedAnswer.equalsIgnoreCase("bye")
|| trimmedAnswer.equalsIgnoreCase("abort"))
{
abort();
return null;
}
final boolean found = reactOnAnswer(trimmedAnswer);
if (found)
{
return getNextState();
}
else
{
sender.sendMessage("Answer not recognized.");
return this;
}
}
/**
* Do something based on the answer, that the user gave.
*/
public abstract void doWork(WorkListener workListener);
public boolean isAbortion()
{
return abortion;
}
protected void abort()
{
abortion = true;
}
}
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