[ Video ]
[ About ]
Day 16 Star.
ブレる星
Stars.
[ Source ]
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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) {}; void draw_star(ofPoint location, float radius); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { for (int i = 0; i < 50; i++) { ofColor color; color.setHsb(ofRandom(255), 255, 230); ofSetColor(color); ofPoint point = ofPoint(ofRandom(ofGetWidth()), ofRandom(ofGetHeight())); this->draw_star(point, ofRandom(20, 60)); } } //-------------------------------------------------------------- void ofApp::draw_star(ofPoint location, float radius) { ofPushMatrix(); ofTranslate(location); ofRotate(ofRandom(360)); int count = 0; vector<ofPoint> vertices; for (int deg = 0; deg < 720 * 5; deg += 72 * 2) { ofPoint point = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); ofPoint noisy_gap = ofPoint(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.03), 0, 1, -radius * 0.15, radius * 0.15), ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.03), 0, 1, -radius * 0.15, radius * 0.15)); vertices.push_back(point + noisy_gap); } ofBeginShape(); ofVertices(vertices); ofEndShape(true); ofPopMatrix(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |