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文字の川。
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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) {}; vector<glm::vec2> location_list; vector<ofColor> color_list; vector<int> index_list; vector<bool> flag_list; ofTrueTypeFont font; string word; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 25, true, true, true); this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; vector<glm::vec2> location_list; ofColor color; for (int x = -300 - 15; x <= 300 - 15; x += 30) { for (int y = -300 + 15; y <= 300 + 15; y += 30) { this->location_list.push_back(glm::vec2(x + 15, y - 15)); color.setHsb(ofRandom(255), 100, 255); this->color_list.push_back(color); this->index_list.push_back(ofRandom(this->word.size())); this->flag_list.push_back(false); } } } //-------------------------------------------------------------- void ofApp::update() { ofColor color; for (int i = 0; i < this->location_list.size(); i++) { auto y = ofMap(ofNoise(this->location_list[i].x * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -460, 460); this->flag_list[i] = false; if (abs(this->location_list[i].y - y) < 60) { color.setHsb(ofRandom(255), 100, 255); this->color_list[i] = color; this->index_list[i] = (ofRandom(this->word.size())); this->flag_list[i] = true; } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); for (int i = 0; i < this->location_list.size(); i++) { ofPushMatrix(); ofTranslate(this->location_list[i]); ofPath chara_path = this->font.getCharacterAsPoints(this->word[this->index_list[i]], true, false); vector<ofPolyline> outline = chara_path.getOutline(); if (flag_list[i]) { ofFill(); ofSetColor(this->color_list[i], 200); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { ofNextContour(true); auto vertices = outline[outline_index].getVertices(); for (auto& vertex : vertices) { ofVertex(vertex + glm::vec2(-8, 15)); } } ofEndShape(true); } ofNoFill(); ofSetColor(this->color_list[i]); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { ofNextContour(true); auto vertices = outline[outline_index].getVertices(); for (auto& vertex : vertices) { ofVertex(vertex + glm::vec2(-8, 15)); } } ofEndShape(true); ofPopMatrix(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |