/**
* barsuift-simlife is a life simulator program
*
* Copyright (C) 2010 Cyrille GACHOT
*
* This file is part of barsuift-simlife.
*
* barsuift-simlife 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 3 of the License, or (at your option) any later
* version.
*
* barsuift-simlife 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 General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with barsuift-simlife. If not, see
* <http://www.gnu.org/licenses/>.
*/
package barsuift.simLife.environment;
import java.math.BigDecimal;
import java.util.Observable;
import barsuift.simLife.j3d.universe.environment.BasicSun3D;
import barsuift.simLife.j3d.universe.environment.Sun3D;
/**
* Class representing the sun.
*/
public class BasicSun extends Observable implements Sun {
private final SunState state;
private BigDecimal luminosity;
private BigDecimal riseAngle;
private BigDecimal zenithAngle;
private final Sun3D sun3D;
/**
* Creates a Sun instance with given state
*
* @throws IllegalArgumentException if the given sun state is null
*/
public BasicSun(SunState state) throws IllegalArgumentException {
if (state == null) {
throw new IllegalArgumentException("Null sun state");
}
this.state = state;
luminosity = state.getLuminosity();
riseAngle = state.getRiseAngle();
zenithAngle = state.getZenithAngle();
sun3D = new BasicSun3D(this);
}
public BigDecimal getLuminosity() {
return luminosity;
}
public void setLuminosity(BigDecimal luminosity) throws IllegalArgumentException {
if (luminosity == null) {
throw new IllegalArgumentException("Sun luminosity can not be null");
}
if (!this.luminosity.equals(luminosity)) {
this.luminosity = luminosity;
setChanged();
notifyObservers(SunUpdateCode.luminosity);
}
}
public BigDecimal getRiseAngle() {
return riseAngle;
}
public void setRiseAngle(BigDecimal riseAngle) {
if (riseAngle == null) {
throw new IllegalArgumentException("Sun rise angle can not be null");
}
if (!this.riseAngle.equals(riseAngle)) {
this.riseAngle = riseAngle;
setChanged();
notifyObservers(SunUpdateCode.riseAngle);
}
}
public BigDecimal getZenithAngle() {
return zenithAngle;
}
public void setZenithAngle(BigDecimal zenithAngle) {
if (zenithAngle == null) {
throw new IllegalArgumentException("Sun zenith angle can not be null");
}
if (!this.zenithAngle.equals(zenithAngle)) {
this.zenithAngle = zenithAngle;
setChanged();
notifyObservers(SunUpdateCode.zenithAngle);
}
}
@Override
public SunState getState() {
synchronize();
return state;
}
@Override
public void synchronize() {
state.setLuminosity(luminosity);
state.setRiseAngle(riseAngle);
state.setZenithAngle(zenithAngle);
}
@Override
public Sun3D getSun3D() {
return sun3D;
}
}