openFrameworks Animation Basic Template

ofApp.cpp

#include "ofApp.h"

void ofApp::setup() {
    locationX = ofGetWidth() / 2.0;
    locationY = ofGetHeight() / 2.0;
    velocityX = ofRandom(-10, 10);
    velocityY = ofRandom(-10, 10);
}

void ofApp::update() {
    locationX += velocityX;
    locationY += velocityY;
}

void ofApp::draw() {
    ofSetColor(255);
    ofDrawCircle(locationX, locationY, 20);
}

ofApp.h

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

    float locationX;
    float locationY;
    float velocityX;
    float velocityY;
};