games.stendhal.server.entity.npc.condition.TextHasNumberCondition.java Source code

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Here is the source code for games.stendhal.server.entity.npc.condition.TextHasNumberCondition.java

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/* $Id: TextHasNumberCondition.java,v 1.11 2013/04/25 20:47:09 kiheru Exp $ */
/***************************************************************************
 *                   (C) Copyright 2003-2010 - Stendhal                    *
 ***************************************************************************
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
package games.stendhal.server.entity.npc.condition;

import games.stendhal.common.parser.Expression;
import games.stendhal.common.parser.Sentence;
import games.stendhal.server.core.config.annotations.Dev;
import games.stendhal.server.core.config.annotations.Dev.Category;
import games.stendhal.server.entity.Entity;
import games.stendhal.server.entity.npc.ChatCondition;
import games.stendhal.server.entity.player.Player;

import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;

/**
 * Does this trigger contain a number?
 */
@Dev(category = Category.CHAT, label = "\"\"?")
public class TextHasNumberCondition implements ChatCondition {
    private final int min;
    private final int max;

    /**
     * Creates a new TextHasNumberCondition which checks for a positive integer.
     */
    public TextHasNumberCondition() {
        this.min = 0;
        this.max = Integer.MAX_VALUE;
    }

    /**
     * Creates a new TextHasNumberCondition which checks for a positive integer.
     *
     * @param min minimal accepted number
     */
    public TextHasNumberCondition(final int min) {
        this.min = min;
        this.max = Integer.MAX_VALUE;
    }

    /**
     * Creates a new TextHasNumberCondition which checks if there is a number
     * and if it is in range.
     *
     * @param min minimal accepted number
     * @param max maximal accepted number
     */
    @Dev
    public TextHasNumberCondition(@Dev(defaultValue = "0") final int min,
            @Dev(defaultValue = "2147483647") final int max) {
        this.min = min;
        this.max = max;
    }

    @Override
    public boolean fire(final Player player, final Sentence sentence, final Entity entity) {
        final Expression number = sentence.getNumeral();

        if (number != null) {
            final int num = number.getAmount();
            if ((num >= min) && (num <= max)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public String toString() {
        return "has number<" + min + ", " + max + ">";
    }

    @Override
    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this);
    }

    @Override
    public boolean equals(final Object obj) {
        return EqualsBuilder.reflectionEquals(this, obj, false, TextHasNumberCondition.class);
    }
}