ofApp.cpp

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup(){
    ofSetBackgroundColor(208,120,13,90);
    ofSetFrameRate(60);
    ofSetCircleResolution(120);
    counter = 0;
    
//    me.circumference =8;
//    
//    me.xpos= ofDegToRad(5);
//    me.ypos= ofDegToRad(80);
    
    
}

//--------------------------------------------------------------
void ofApp::update(){

    ofTranslate(ofGetHeight()/3, ofGetWidth()/3);
 //   me.form1(me.circumference, ofDegToRad(270),0 ,0);
//counter along with sin will make the radius of the ball keep changing
counter = counter + 0.033f;
//recursive function begins (drawCircle calls upon itself to draw circles outside the last circle's radius)
}


    void drawCircleRecursive(ofVec2f center, float radius)
    {
        //why does ofCircle always seem to be deprecated?
        ofCircle(center.x, center.y, radius);
        //radius size of initial circle
        if(radius > 8)
        {
            //making this number bigger compacts the circles to be drawn closer
            radius *= 0.95f;
            drawCircleRecursive(center, radius);
        }
}

//--------------------------------------------------------------
void ofApp::draw(){
    //here i try to trigger the circles to move
    float radius = 50 + 100 * sin(counter);
    
    //ofSetColor(255, 255, 255);
    //color changes over time
    ofSetColor(abs(sin(ofGetElapsedTimef()/2))*255, abs(cos(ofGetElapsedTimef()/2))*255, abs(cos(ofGetElapsedTimef()/4))*255, 255);
    ofNoFill();
    
    //casting ints as floats 
    drawCircleRecursive(ofVec2f{static_cast<float>(ofGetWidth()/2), static_cast<float>(ofGetHeight()/2)}, ofGetHeight());
    
    int w = gmg.getWidth();
    int h = gmg.getHeight();
    
    float diameter = 10;
    ofSetColor(2, 210, 200);
    for(int y = 1; y < h; y++) {
        for(int x = 2; x < w; x++) {
            ofColor cur = gmg.getColor(x, y);
            float size = 1 - (cur.getBrightness() / 1005);
            ofDrawCircle(x * diameter, 50 + y * diameter, 1 + size * diameter / 2);
}
    }
}
//--------------------------------------------------------------
void ofApp::keyPressed(int key){

}

//--------------------------------------------------------------
void ofApp::keyReleased(int key){

}

//--------------------------------------------------------------
void ofApp::mouseMoved(int x, int y ){

}

//--------------------------------------------------------------
void ofApp::mouseDragged(int x, int y, int button){

}

//--------------------------------------------------------------
void ofApp::mousePressed(int x, int y, int button){

}

//--------------------------------------------------------------
void ofApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------
void ofApp::mouseEntered(int x, int y){

}

//--------------------------------------------------------------
void ofApp::mouseExited(int x, int y){

}

//--------------------------------------------------------------
void ofApp::windowResized(int w, int h){

}

//--------------------------------------------------------------
void ofApp::gotMessage(ofMessage msg){

}

//--------------------------------------------------------------
void ofApp::dragEvent(ofDragInfo dragInfo){ 

}

ofApp.h

#pragma once

#include "ofMain.h"
#include "Generative.hpp"

class ofApp : public ofBaseApp{

	public:
		void setup();
		void update();
		void draw();

		void keyPressed(int key);
		void keyReleased(int key);
		void mouseMoved(int x, int y );
		void mouseDragged(int x, int y, int button);
		void mousePressed(int x, int y, int button);
		void mouseReleased(int x, int y, int button);
		void mouseEntered(int x, int y);
		void mouseExited(int x, int y);
		void windowResized(int w, int h);
		void dragEvent(ofDragInfo dragInfo);
		void gotMessage(ofMessage msg);
		
        ofImage gmg;
        float counter;
    
      //  Generative me;
    
};

sunstar.main.cpp

#include "ofMain.h"
#include "ofApp.h"
//code snip in ofApp.cpp from 
//https://github.com/GuidoSchmidt/ofNaturOfCode/tree/master/8.01-RecursiveCircles/src
//========================================================================
int main( ){
	ofSetupOpenGL(1024,768,OF_WINDOW);			// <-------- setup the GL context

	// this kicks off the running of my app
	// can be OF_WINDOW or OF_FULLSCREEN
	// pass in width and height too:
	ofRunApp(new ofApp());

}