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Happy Valentine’s Day 2023.
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#pragma once #include "ofMain.h" 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) {}; glm::vec2 make_point(float theta); float random_seed; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { if (ofGetFrameNum() % 45 < 5) { this->random_seed = ofRandom(1000); } ofSeedRandom(this->random_seed); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); auto number_of_sphere = 150; vector<glm::vec2> location_list; vector<float> radius_list; while (location_list.size() < number_of_sphere) { auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300)); auto radius = ofRandom(8, 70); bool flag = true; for (int i = 0; i < location_list.size(); i++) { if (glm::distance(location, location_list[i]) < (radius + radius_list[i])) { flag = false; break; } } if (flag) { location_list.push_back(location); radius_list.push_back(radius); } } int count = 0; while (true) { auto all = true; for (int i = 0; i < location_list.size(); i++) { auto flag = true; for (int k = 0; k < location_list.size(); k++) { if (i == k) { continue; } if (glm::distance(location_list[i], location_list[k]) < (radius_list[i] + radius_list[k])) { flag = false; } } if (flag) { radius_list[i] += 1; all = false; break; } } if (all) { break; } count++; } ofColor color; auto param = ofGetFrameNum() % 45 < 5 ? 0.2 : ofGetFrameNum() % 45 < 15 ? ofMap(ofGetFrameNum() % 45, 5, 15, 0.2, 1) : 1; for (int i = 0; i < location_list.size(); i++) { ofPushMatrix(); ofTranslate(location_list[i]); ofRotate(ofRandom(360)); color.setHsb(ofRandom(0, 10), ofRandom(0, 255), 255); vector<glm::vec2> vertices; for (int deg = 0; deg < 360; deg += 1) { vertices.push_back(this->make_point(deg * DEG_TO_RAD) * 1.1); } for (auto& vertex : vertices) { vertex = vertex / 20 * radius_list[i]; } ofFill(); ofSetColor(color, 170); ofBeginShape(); ofVertices(vertices); ofEndShape(); ofNoFill(); ofSetColor(color); ofBeginShape(); ofVertices(vertices); ofEndShape(); ofPopMatrix(); } } //-------------------------------------------------------------- //Reference by https://twitter.com/shiffman/status/1095764239665512453 glm::vec2 ofApp::make_point(float theta) { float x = 16 * (pow(sin(theta), 3)); float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta); return glm::vec2(x, -y); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |