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テキスト生成器。
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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) {}; vector<vector<glm::vec2>> log_list; vector<glm::vec2> velocity_list; vector<float> noise_seed_list; vector<int> index_list; ofTrueTypeFont font; int font_size; vector<char> charactor_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(39); this->font_size = 50; this->font.loadFont("fonts/msgothic.ttc", this->font_size, true, true, true); this->charactor_list = { ';', ')', '(', 'y', 'g', 'o', 'l', 'o', 'h', 't', 'n', 'a' }; } //-------------------------------------------------------------- void ofApp::update() { float radius = 280; for (int i = 0; i < 3; i++) { int deg = ofGetFrameNum() * 2 + i * 120; int next_deg = ofGetFrameNum() * 2 + i * 120 + 1; auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD)); if (ofGetFrameNum() % 2 == 0) { vector<glm::vec2> log; log.push_back(location); this->log_list.push_back(log); auto deg = glm::atan(next.y - location.y, next.x - location.x) * RAD_TO_DEG + 180 + ofRandom(-30, 30); glm::vec2 velocity = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD)); this->velocity_list.push_back(velocity); this->noise_seed_list.push_back(ofRandom(1000)); this->index_list.push_back((ofGetFrameNum() / 2) % this->charactor_list.size()); } } for (int i = 0; i < this->log_list.size(); i++) { auto future = this->velocity_list[i] * 200; auto random_deg = ofMap(ofNoise(glm::vec2(this->noise_seed_list[i], ofGetFrameNum() * 0.01)), 0, 1, -30, 30); future += glm::vec2(10 * cos(random_deg * DEG_TO_RAD), 10 * sin(random_deg * DEG_TO_RAD)); auto next = this->log_list[i].back() + glm::normalize(future) * 10; this->log_list[i].push_back(next); if (this->log_list[i].size() > 50) { this->log_list.erase(this->log_list.begin() + i); this->velocity_list.erase(this->velocity_list.begin() + i); this->noise_seed_list.erase(this->noise_seed_list.begin() + i); this->index_list.erase(this->index_list.begin() + i); } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); for (int i = 0; i < this->log_list.size(); i++) { ofPushMatrix(); ofTranslate(this->log_list[i].back()); auto rad = atan2(this->velocity_list[i].y, this->velocity_list[i].x); ofRotate(rad * RAD_TO_DEG + 270); ofPath path = this->font.getCharacterAsPoints(this->charactor_list[this->index_list[i]], true, false); vector<ofPolyline> outline = path.getOutline(); ofFill(); ofSetColor(this->log_list[i].size() < 10 ? 255 : ofMap(this->log_list[i].size(), 10, 50, 255, 39)); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { if (outline_index != 0) { ofNextContour(true); } auto vertices = outline[outline_index].getResampledByCount(200).getVertices(); for (auto& vertex : vertices) { auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 330); ofVertex(location); } } ofEndShape(true); ofPopMatrix(); } /* int start = 50; 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()); } |