Set<SignalKey> getExpressedSignals(final boolean external) {
// calculate the signal concentrations
final HashSet<SignalKey> allSignals = new HashSet<SignalKey>();
for (AbstractWaveletGene waveletGene : this.sequencedGenes) {
// if the current gene doesnt express a signal then skip it.
if (!(waveletGene instanceof SignalGene)) continue;
// convert the gene's type
final SignalGene gene = (SignalGene) waveletGene;
// check if the gene's signal is internal or external. continue if
// it doesnt match
if (external) {
// if its not an outward pointing external gene then just skip it
if (!(gene instanceof ExternalSignalGene)) continue;
else if (!((ExternalSignalGene) gene).isOutward()) continue;
} else {
// if its an outward pointing external than just skip it.
if ((gene instanceof ExternalSignalGene) && (((ExternalSignalGene) gene).isOutward()))
continue;
}
allSignals.add(gene.getOutputSignal());
}
return Collections.unmodifiableSet(allSignals);
}
