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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(255); ofSetColor(0); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); int span = 60; for (int x = span * -5; x < span * 5; x += span) { for (int y = span * -5; y < span * 5; y += span) { int r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, 4); auto location = glm::vec2(x, y); if (r == 1) { location += glm::vec2(span, 0); } else if (r == 2) { location += glm::vec2(span, span); } else if (r == 3) { location += glm::vec2(0, span); } int deg_start = r * 90; ofBeginShape(); for (int deg = deg_start; deg <= deg_start + 90; deg += 1) { auto radius = span * 0.5; ofVertex(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD))); } ofVertex(location); ofEndShape(true); r = (r + 2) % 4; location = glm::vec2(x, y); if (r == 1) { location += glm::vec2(span, 0); } else if (r == 2) { location += glm::vec2(span, span); } else if (r == 3) { location += glm::vec2(0, span); } deg_start = r * 90; ofBeginShape(); for (int deg = deg_start; deg <= deg_start + 90; deg += 1) { auto radius = span * 0.5; ofVertex(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD))); } ofVertex(location); ofEndShape(true); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |