fr.fg.client.animation.CountdownUpdater.java Source code

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Here is the source code for fr.fg.client.animation.CountdownUpdater.java

Source

/*
Copyright 2010 Jeremie Gottero
    
This file is part of Fallen Galaxy.
    
Fallen Galaxy is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
Fallen Galaxy 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 Affero General Public License for more details.
    
You should have received a copy of the GNU Affero General Public License
along with Fallen Galaxy. If not, see <http://www.gnu.org/licenses/>.
*/

package fr.fg.client.animation;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;

import fr.fg.client.i18n.Formatter;
import fr.fg.client.openjwt.animation.TimerHandler;

public class CountdownUpdater implements TimerHandler {
    // ------------------------------------------------------- CONSTANTES -- //
    // -------------------------------------------------------- ATTRIBUTS -- //

    private String id;

    private double value;

    private double speed;

    // ---------------------------------------------------- CONSTRUCTEURS -- //

    public CountdownUpdater(String id, double value, double speed) {
        this.id = id;
        this.value = value;
        this.speed = speed;

        Element timedElement = DOM.getElementById(id);

        if (timedElement != null)
            timedElement.setInnerHTML(Formatter.formatNumber(Math.ceil(value), true));
    }

    // --------------------------------------------------------- METHODES -- //

    public boolean isFinished() {
        return value == 0;
    }

    public void update(int interpolation) {
        double oldValue = value;
        value -= speed * interpolation;

        if (value < 0)
            value = 0;

        if (Math.ceil(oldValue) == Math.ceil(value))
            return;

        Element timedElement = DOM.getElementById(id);

        if (timedElement != null)
            timedElement.setInnerHTML(Formatter.formatNumber(Math.ceil(value), true));
    }

    public void destroy() {
        // Non utilis
    }

    // ------------------------------------------------- METHODES PRIVEES -- //
}