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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) {}; vector<glm::vec3> location_list; vector<ofColor> base_color_list_1, base_color_list_2; vector<vector<glm::vec2>> log_list; vector<ofColor> color_list; vector<float> life_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); ofNoFill(); ofColor color; vector<int> hex_list = { 0xf72585, 0xb5179e, 0x7209b7, 0x480ca8, 0x3f37c9, 0x4cc9f0 }; for (auto hex : hex_list) { color.setHex(hex); this->base_color_list_1.push_back(color); } hex_list = { 0x1f005c, 0x5b0060, 0x870160, 0xac255e, 0xca485c, 0xe16b5c, 0xf39060, 0xffb56b }; for (auto hex : hex_list) { color.setHex(hex); this->base_color_list_2.push_back(color); } } //-------------------------------------------------------------- void ofApp::update() { this->location_list.clear(); for (int i = 0; i < 2; i++) { auto location = glm::vec3(200 * cos((ofGetFrameNum() * 0.75 + i * 180) * DEG_TO_RAD), 200 * sin((ofGetFrameNum() * 0.75 + i * 180) * DEG_TO_RAD), 0); for (int deg = 0; deg < 360; deg++) { this->location_list.push_back(location + glm::vec3(80 * cos(deg * DEG_TO_RAD), 80 * sin(deg * DEG_TO_RAD), 0)); } } int radius = 7; while (this->log_list.size() < 2000) { int location_index = ofRandom(this->location_list.size()); vector<glm::vec2> log; log.push_back(this->location_list[location_index]); this->log_list.push_back(log); if (location_index < 360) { this->color_list.push_back(this->base_color_list_1[(int)ofRandom(this->base_color_list_1.size())]); } else { this->color_list.push_back(this->base_color_list_2[(int)ofRandom(this->base_color_list_2.size())]); } this->life_list.push_back(ofRandom(30, 50)); } for (int i = this->log_list.size() - 1; i >= 0; i--) { this->life_list[i] -= 1; if (this->life_list[i] < 0) { this->log_list.erase(this->log_list.begin() + i); this->color_list.erase(this->color_list.begin() + i); this->life_list.erase(this->life_list.begin() + i); continue; } auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.008, ofGetFrameNum() * 0.003)), 0, 1, -360, 360); this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD))); while (this->log_list[i].size() > 100) { this->log_list[i].erase(this->log_list[i].begin()); } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); for (int i = 0; i < this->log_list.size(); i++) { ofSetColor(this->color_list[i]); if (this->life_list[i] > 30) { ofSetLineWidth(1.2); } else { ofSetLineWidth(ofMap(this->life_list[i], 0, 30, 0, 1.2)); } ofBeginShape(); ofVertices(this->log_list[i]); ofEndShape(); } ofSetLineWidth(2); ofSetColor(this->base_color_list_1.back()); ofDrawCircle(glm::vec2(200 * cos((ofGetFrameNum() * 0.75) * DEG_TO_RAD), 200 * sin((ofGetFrameNum() * 0.75) * DEG_TO_RAD)), 80); ofSetColor(this->base_color_list_2.back()); ofDrawCircle(glm::vec2(200 * cos((ofGetFrameNum() * 0.75 + 180) * DEG_TO_RAD), 200 * sin((ofGetFrameNum() * 0.75 + 180) * DEG_TO_RAD)), 80); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |