* @param parameter Parameter
*/
public void activate(final Nifty nifty, final Element element, final EffectProperties parameter) {
String startSizeString = parameter.getProperty("startSize");
if (startSizeString != null) {
startSize = new SizeValue(startSizeString);
}
String endSizeString = parameter.getProperty("endSize");
if (endSizeString != null) {
endSize = new SizeValue(endSizeString);
}
pulsator = new Pulsator(parameter, new TimeProvider());
}