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[ About ]
消えては現れる。
Disappear and appear.
[ Source ]
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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) {}; void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, int deg_start, int deg_end, ofColor color); ofMesh face, frame; vector<int> deg_param_list; vector<ofColor> base_color_list, color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); 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); } for (int i = 0; i < 20; i++) { this->deg_param_list.push_back(ofRandom(360)); this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]); } } //-------------------------------------------------------------- void ofApp::update() { this->face.clear(); this->frame.clear(); for (int i = 0; i < this->deg_param_list.size(); i++) { int p = (ofGetFrameNum() * 5) % 720; if (p == 0) { this->deg_param_list[i] = ofRandom(360); this->color_list[i] = this->base_color_list[(int)ofRandom(this->base_color_list.size())]; } int d = this->deg_param_list[i] + p; int radius = 15 + i * 15; if (d < this->deg_param_list[i] + 360) { this->setRingToMesh(this->face, this->frame, glm::vec3(), radius, 15, this->deg_param_list[i], d, this->color_list[i]); } else { this->setRingToMesh(this->face, this->frame, glm::vec3(), radius, 15, d, this->deg_param_list[i] + 720, this->color_list[i]); } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); this->face.draw(); this->frame.drawWireframe(); } //-------------------------------------------------------------- void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, int deg_start, int deg_end, ofColor color) { if (deg_start >= deg_end) { return; } for (int deg = deg_start; deg <= deg_end; deg += 1) { vector<glm::vec3> vertices; vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), 0)); for (auto& vertex : vertices) { vertex += location; } auto face_index = face_target.getNumVertices(); face_target.addVertices(vertices); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3); auto frame_index = frame_target.getNumVertices(); frame_target.addVertices(vertices); frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3); if (deg == deg_start) { frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 3); } if (deg == deg_end) { frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2); } for (int i = 0; i < vertices.size(); i++) { face_target.addColor(color); frame_target.addColor(ofColor(239)); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |