/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Copyright (C) 2005 Owen Jacobson <angrybaldguy@gmail.com>
*/
package ca.grimoire.jnoise.config.modules.map;
import ca.grimoire.jnoise.config.BuilderException;
import ca.grimoire.jnoise.config.modules.ModuleBuilder;
import ca.grimoire.jnoise.config.modules.SingleModuleElement;
import ca.grimoire.jnoise.modules.map.Exponent;
/**
* Element handler for Exponent noise modules.
*
* @see Exponent
*/
public final class ExponentBuilder extends SingleModuleElement implements
ModuleBuilder {
/**
* Creates a Exponent noise module using the child element as a source.
*
* @return the created Exponent module.
* @throws BuilderException
* if the source module has not been provided.
*/
public Exponent createModule () throws BuilderException {
if (!hasPower)
throw new BuilderException ("Exponent requires power.");
return new Exponent (getSource ().createModule (), power);
}
/**
* Sets the power to raise the source module to.
*
* @param power
* the exponent to raise the source value to.
*/
public final void setPower (double power) {
this.power = power;
this.hasPower = true;
}
private boolean hasPower = false;
private double power;
}