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反射する線による文字。
Text by reflective lines.
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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 number_of_agent; int len_of_tail; float speed_param; vector<deque<glm::vec2>> logs; vector<glm::vec2> directions; vector<ofColor> colors; ofFbo fbo; ofPixels pixels; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(2); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY); ofColor color; vector<ofColor> color_base_list; vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c }; for (auto hex : hex_list) { color.setHex(hex); color_base_list.push_back(color); } this->fbo.allocate(ofGetWidth(), ofGetHeight()); this->fbo.begin(); ofClear(0); ofTrueTypeFont font; font.loadFont("fonts/Kazesawa-bold.ttf", 320, true, true, true); string word = "AB"; font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 - font.stringHeight(word) * 0.05); word = "CD"; font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 1.05); this->fbo.end(); this->fbo.readToPixels(this->pixels); this->number_of_agent = 350; this->len_of_tail = 30; while (this->logs.size() < this->number_of_agent) { int x = ofRandom(ofGetWidth()); int y = ofRandom(ofGetHeight()); if (this->pixels.getColor(x, y) != ofColor(0, 0)) { deque<glm::vec2> log; log.push_front(glm::vec2(x, y)); this->logs.push_back(log); this->directions.push_back(glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1)))); this->colors.push_back(color_base_list[(int)ofRandom(color_base_list.size())]); } } } //-------------------------------------------------------------- void ofApp::update() { if (ofGetFrameNum() % 60 == 0) { while (true) { float tmp = ofRandom(1); if (abs(this->speed_param - tmp) > 0.25) { this->speed_param = tmp; break; } } } for (int i = 0; i < this->number_of_agent; i++) { glm::vec2 future = this->logs[i].front() + this->directions[i] * 5 * this->speed_param; int x = future.x; int y = future.y; while (this->pixels.getColor(x, y) == ofColor(0, 0)) { this->directions[i] = glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))); future = this->logs[i].front() + this->directions[i] * 10 * this->speed_param; x = future.x; y = future.y; } this->logs[i].push_front(future); while (this->logs[i].size() > this->len_of_tail) { this->logs[i].pop_back(); } } } //-------------------------------------------------------------- void ofApp::draw() { for (int i = 0; i < this->number_of_agent; i++) { ofSetColor(this->colors[i]); for (int l = 0; l < this->logs[i].size() - 1; l++) { ofDrawLine(this->logs[i][l], this->logs[i][l + 1]); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |