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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) {}; float noise_param; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(2); ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER); this->noise_param = ofRandom(1000); } //-------------------------------------------------------------- void ofApp::update() { this->noise_param += 0.01; } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); for (int deg = 0; deg < 360; deg += 6) { float radius = 200; auto start = glm::vec2((radius - 75) * cos(deg * DEG_TO_RAD), (radius - 75) * sin(deg * DEG_TO_RAD)); auto end = glm::vec2((radius + 75) * cos(deg * DEG_TO_RAD), (radius + 75) * sin(deg * DEG_TO_RAD)); ofDrawLine(start, end); auto target_radius = ofMap(ofNoise(cos(deg * DEG_TO_RAD) * 3, sin(deg * DEG_TO_RAD) * 3, this->noise_param), 0, 1, radius - 60, radius + 60); auto target_location = glm::vec2(target_radius * cos(deg * DEG_TO_RAD), target_radius * sin(deg * DEG_TO_RAD)); ofPushMatrix(); ofTranslate(target_location); ofRotate(deg); ofDrawRectangle(glm::vec2(), 40, 10); ofPopMatrix(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |