gistfile1.txt

class UTransformHarmonize : public UTransformBase {

public:
    list<int> intervals;
    
    bool calcPlayingNotes(CLOCK clock) {
        
        bool changed = upstreamTransform->calcPlayingNotes(clock);
        
        
        if(shouldUpdate || changed) {
            
            playingNotes.clear();
            
            NoteList input = upstreamTransform->playingNotes;
        
            for(auto it = input.begin(); it != input.end(); it++) {
                for(auto interval: intervals) {
                    Note n = *it;
                    n.key += interval;
                    n.options["key"] = n.key;
                    playingNotes.push_back(n);
                }
            }
            
            playingNotes.markAsNew();
            
            shouldUpdate = false;
            
            return true;
        }
        else {
            return false;
        }
        
    }
};