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文字で波紋。
Ripples with Characters.
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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<int> index_list; vector<pair<glm::vec2, float>> wave_list; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(255); 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(ofRandom(this->words.size())); this->param_list.push_back(true); } } } //-------------------------------------------------------------- void ofApp::update() { if (ofGetFrameNum() % 15 == 0) { auto l = glm::vec2(ofRandom(-250, 250), ofRandom(-250, 250)); auto f = 5; this->wave_list.push_back(make_pair(l, f)); } for (auto& param : this->param_list) { param = false; } auto max_height = 150; for (auto& wave : this->wave_list) { for (int i = 0; i < this->location_list.size(); i++) { auto distance = glm::distance(wave.first, this->location_list[i]); if (distance > wave.second - this->font_size * 1.2 && distance < wave.second + this->font_size * 1.2) { this->index_list[i] = (this->index_list[i] + 1) % this->words.size(); this->param_list[i] = true; } } wave.second += 12; } for (int i = this->wave_list.size() - 1; i >= 0; i--) { if (this->wave_list[i].second > 650) { this->wave_list.erase(this->wave_list.begin() + i); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); for (int i = 0; i < this->location_list.size(); i++) { if (this->param_list[i]) { ofSetColor(0); } else { ofSetColor(128); } 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()); } |