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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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetColor(255); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); for (int base_deg = 0; base_deg < 360; base_deg += 2) { vector<glm::vec2> vertices; auto base_radius = ofRandom(720); auto speed = ofRandom(3, 5); ofSetLineWidth(ofRandom(0.5, 3)); for (int i = 0; i < 30; i++) { auto deg = base_deg + (ofGetFrameNum() + i) * 3; auto radius = 800 - (int)(base_radius + (ofGetFrameNum() + i) * speed) % 800; if (radius > 650) { continue; } auto vertex = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); vertices.push_back(vertex); } ofBeginShape(); ofVertices(vertices); ofEndShape(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |