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矢印の連結。
重ならないようにしたら少し不思議な動きに。
Arrow linkage.
I tried not to overlap them, but it made the movement a little strange.
[ 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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor color); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); for (int i = 0; i < 4; i++) { auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000)); auto prev_allow = glm::vec2(); int arrow_count = 0; int k = 0; while (arrow_count < 5) { auto location = glm::vec2(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0065 - k * 0.0065), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0065 - k * 0.0065), 0, 1, -300, 300)); auto next = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() - 1) * 0.0065 - k * 0.0065), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() - 1) * 0.0065 - k * 0.0065), 0, 1, -300, 300)); if (arrow_count == 0) { this->draw_arrow(next, location, 30, ofColor(39)); prev_allow = location; arrow_count++; } else if (glm::distance(prev_allow, location) > 45) { this->draw_arrow(location, prev_allow, 30, ofColor(39)); prev_allow = location; arrow_count++; } k++; } } } //-------------------------------------------------------------- void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor color) { auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x); ofSetColor(color); ofFill(); ofBeginShape(); ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle))); ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5))); ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5))); ofEndShape(); ofBeginShape(); ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25); ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5); ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5); ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25); ofEndShape(); ofSetColor(239); ofNoFill(); ofBeginShape(); ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle))); ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5))); ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5))); ofEndShape(); ofBeginShape(); ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25); ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5); ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5); ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25); ofEndShape(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/Insta20210702
[ Kinako ]