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ノイズ関数でyを計算して＋と-の両方を使う。
Calculate y with the noise function and use both + and -.
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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) {}; int font_size; ofTrueTypeFont font; vector<string> words; vector<glm::vec2> location_list; vector<bool> param_list; vector<float> index_list; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(0); this->font_size = 20; ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size); this->font.load(font_settings); this->words = { "H", "A", "P", "P", "Y", "N", "E", "W", "Y", "E", "A", "R" }; for (int x = this->font_size * -15; x <= this->font_size * 15; x += this->font_size * 0.8) { for (int y = this->font_size * -15; y <= this->font_size * 15; y += this->font_size * 1.2) { this->location_list.push_back(glm::vec2(x - this->font_size * 0.2, y - this->font_size * 0.5)); this->index_list.push_back(0.f); this->param_list.push_back(true); } } } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); for (auto& param : this->param_list) { param = false; } for (int k = 0; k < 2; k++) { auto noise_seed = ofRandom(1000); for (int x = -720; x <=720; x += 3) { auto y = ofMap(ofNoise(noise_seed, x * 0.0005 + ofGetFrameNum() * 0.01), 0, 1, -350, 350); for (int i = 0; i < this->location_list.size(); i++) { auto distance = glm::distance(glm::vec2(x, y), this->location_list[i]); if (distance < this->font_size * 0.8) { this->index_list[i] += 1; this->index_list[i] = (int)this->index_list[i] % this->words.size(); this->param_list[i] = true; } distance = glm::distance(glm::vec2(x, -y), this->location_list[i]); if (distance < this->font_size * 0.8) { this->index_list[i] += 1; this->index_list[i] = (int)this->index_list[i] % this->words.size(); this->param_list[i] = true; } } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); for (int i = 0; i < this->location_list.size(); i++) { ofColor location_color; location_color.setHsb(ofRandom(255), 150, 255); if (this->param_list[i]) { ofSetColor(location_color); } else { ofSetColor(96); } this->font.drawString(this->words[this->index_list[i]], this->location_list[i].x, this->location_list[i].y); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |