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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) {}; float frame_num; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetColor(255); ofSetLineWidth(1); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); if (ofGetFrameNum() % 50 < 25) { this->frame_num += 3.6; } } //-------------------------------------------------------------- void ofApp::draw() { float radius = 60; for (float y = radius * 1.5; y <= 720 - radius * 1.5; y += radius) { for (float x = radius * 1.5; x <= 720 - radius * 1.5; x += radius) { glm::vec3 location; location = glm::vec3(x, y, 0); ofPushMatrix(); ofTranslate(location); ofRotate(45); for (int draw_radius = radius; draw_radius >= 0; draw_radius -= 30) { int random_deg = ofRandom(360); random_deg = (random_deg / 90) * 90 + 45; int speed = ofRandom(1, 4); auto deg_start = random_deg + this->frame_num * speed; auto deg_len = 180; auto deg_end = deg_start + deg_len; ofNoFill(); ofBeginShape(); for (int deg = deg_start; deg <= deg_end; deg += 1) { glm::vec2 location = glm::vec2(draw_radius * 0.5 * cos(deg * DEG_TO_RAD), draw_radius * 0.5 * sin(deg * DEG_TO_RAD)); ofVertex(location); } ofEndShape(draw_radius == radius - 30); if (draw_radius == radius - 30) { ofFill(); ofDrawCircle(glm::vec2(draw_radius * 0.5 * cos((deg_start + 225) * DEG_TO_RAD), draw_radius * 0.5 * sin((deg_start + 225) * DEG_TO_RAD)), 3); ofDrawCircle(glm::vec2(draw_radius * 0.5 * cos((deg_start + 315) * DEG_TO_RAD), draw_radius * 0.5 * sin((deg_start + 315) * DEG_TO_RAD)), 3); } } ofPopMatrix(); } } /* int start = 100; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |