public boolean playerHasDependencies(ChromaResearch r, EntityPlayer ep) {
Collection<ChromaResearch> deps = data.getParents(r);
if (deps != null && !deps.isEmpty()) {
for (ChromaResearch p : deps) {
if (!this.playerHasFragment(ep, p)) {
return false;
}
}
}
return true;
}
public Collection<ChromaResearch> getPreReqsFor(ChromaResearch r) {
Collection<ChromaResearch> c = data.getParents(r);
return c != null ? Collections.unmodifiableCollection(c) : new ArrayList();
}