WeaponDecoder.java

package vooga.rts.gamedesign.factories;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import vooga.rts.gamedesign.weapon.Weapon;
import vooga.rts.util.ReflectionHelper;


/**
 * This class decodes the weapons section of the XML file.
 * The create method instantiates all the weapons and takes note of all
 * the weapon-projectile pairs so that they can be paired later (when all
 * things are finally instantiated).
 * 
 * @author FrancescoA
 * 
 */
public class WeaponDecoder extends Decoder {

    private Factory myFactory;

    public WeaponDecoder (Factory factory) {
        myFactory = factory;
    }

    @Override
    public void create (Document doc, String type) {
        String path =
                doc.getElementsByTagName(type).item(0).getAttributes().getNamedItem(SOURCE_TAG)
                        .getTextContent();
        String subtype = type.substring(0, type.length() - 1);
        NodeList nodeLst = doc.getElementsByTagName(subtype);
        for (int i = 0; i < nodeLst.getLength(); i++) {
            Element wElement = (Element) nodeLst.item(i);
            String name = getElement(wElement, NAME_TAG);
            int range = Integer.parseInt(getElement(wElement, RANGE_TAG));
            double cooldown = Double.parseDouble(getElement(wElement, COOLDOWN_TAG));
            Weapon weapon = (Weapon) ReflectionHelper.makeInstance(path, range, cooldown);
            myFactory.put(name, weapon);

            // Load Projectile Dependencies
            String projectile = getElement(wElement, MYPROJECTILE_TAG);
            if (projectile != "") {
                myFactory.putProjectileDependency(name, projectile);
            }

        }
    }

}