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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) {}; ofTrueTypeFont font; float radius; vector<glm::vec2> hexagon_list; vector<glm::vec2> noise_seed_list; vector<float> alpha_list; vector<ofColor> base_color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(239); ofColor color; vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c }; for (auto hex : hex_list) { color.setHex(hex); this->base_color_list.push_back(color); } this->radius = 12; auto x_span = this->radius * sqrt(3); auto flg = true; for (float y = 0; y < ofGetHeight() + this->radius; y += this->radius * 1.5) { for (float x = 0; x < ofGetWidth() + this->radius; x += x_span) { glm::vec2 location; if (flg) { location = glm::vec2(x, y); } else { location = glm::vec2(x + (this->radius * sqrt(3) / 2), y); } this->hexagon_list.push_back(location); this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000))); this->alpha_list.push_back(0); } flg = !flg; } this->font.loadFont("fonts/Kazesawa-bold.ttf", 260, true, true, true); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); ofFbo fbo; ofPixels pixels; fbo.allocate(ofGetWidth(), ofGetHeight()); fbo.begin(); ofClear(0); string word = "HEX"; this->font.drawString(word, ofGetWidth() * 0.5 - this->font.stringWidth(word) * 0.5 - 5, ofGetHeight() * 0.5 + this->font.stringHeight(word) * 0.5); fbo.end(); fbo.readToPixels(pixels); ofColor pix_color; int span = 10; for (int i = 0; i < this->hexagon_list.size(); i++) { pix_color = pixels.getColor((int)this->hexagon_list[i].x, (int)this->hexagon_list[i].y); if (pix_color != ofColor(0, 0)) { this->alpha_list[i] = this->alpha_list[i] < 255 ? this->alpha_list[i] + 50 : 255; } else { this->alpha_list[i] = this->alpha_list[i] > 0 ? this->alpha_list[i] - 2 : 0; } } } //-------------------------------------------------------------- void ofApp::draw() { ofColor color; for (int i = 0; i < this->hexagon_list.size(); i++) { vector<glm::vec2> vertices; for (auto deg = 90; deg < 450; deg += 60) { vertices.push_back(this->hexagon_list[i] + glm::vec2(this->radius * cos(deg * DEG_TO_RAD), this->radius * sin(deg * DEG_TO_RAD))); } color = this->base_color_list[(int)ofMap(ofNoise(glm::vec3(this->hexagon_list[i] * 0.005, ofGetFrameNum() * 0.02)), 0, 1, 0, this->base_color_list.size())]; ofFill(); ofSetColor(color, this->alpha_list[i]); ofBeginShape(); ofVertices(vertices); ofEndShape(true); ofNoFill(); ofSetColor(239); ofBeginShape(); ofVertices(vertices); ofEndShape(true); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |