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Polygon generater.
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#pragma once #include "ofMain.h" #include "ofxBox2d.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 sort(vector<glm::vec2>& vertices); ofxBox2d box2d; vector<ofColor> color_list; vector<glm::vec2> walker_list; vector<glm::vec2> walker_noise_seed_list; vector<shared_ptr<ofxBox2dPolygon>> polygon_list; vector<float> polygon_lile_list; vector<ofColor> polygon_color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(2); this->box2d.init(); this->box2d.setGravity(0, 50); this->box2d.createBounds(); this->box2d.setFPS(60); this->box2d.registerGrabbing(); ofColor color; vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c }; for (auto hex : hex_list) { color.setHex(hex); this->color_list.push_back(color); } for (int i = 0; i < 15; i++) { this->walker_list.push_back(glm::vec2()); this->walker_noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000))); } } //-------------------------------------------------------------- void ofApp::update() { for (int i = 0; i < this->walker_list.size(); i++) { this->walker_list[i] = glm::vec2( ofMap(ofNoise(this->walker_noise_seed_list[i].x, ofGetFrameNum() * 0.005), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(this->walker_noise_seed_list[i].y, ofGetFrameNum() * 0.005), 0, 1, 0, ofGetHeight() * 0.25) ); } if (ofGetFrameNum() % 3 == 0) { for (int i = 0; i < this->walker_list.size(); i++) { vector<glm::vec2> vertices; for (int k = i + 1; k < this->walker_list.size(); k++) { if (glm::distance(this->walker_list[i], this->walker_list[k]) < 50) { vertices.push_back(this->walker_list[k] - this->walker_list[i]); } } if (vertices.size() >= 2) { this->sort(vertices); for (int m = 0; m < vertices.size() - 1; m++) { auto polygon = make_shared<ofxBox2dPolygon>(); polygon->addVertex(this->walker_list[i].x, this->walker_list[i].y); polygon->addVertex(this->walker_list[i].x + vertices[m].x, this->walker_list[i].y + vertices[m].y); polygon->addVertex(this->walker_list[i].x + vertices[m + 1].x, this->walker_list[i].y + vertices[m + 1].y); polygon->setPhysics(1.0, 0.7, 0.3); polygon->create(box2d.getWorld()); this->polygon_list.push_back(polygon); this->polygon_lile_list.push_back(255); this->polygon_color_list.push_back(this->color_list[(int)ofRandom(this->color_list.size())]); } } } } for (int i = this->polygon_list.size() - 1; i > -1; i--) { this->polygon_lile_list[i] -= 1; if (this->polygon_lile_list[i] < 0) { this->polygon_list.erase(this->polygon_list.begin() + i); this->polygon_lile_list.erase(this->polygon_lile_list.begin() + i); this->polygon_color_list.erase(this->polygon_color_list.begin() + i); } } this->box2d.update(); } //-------------------------------------------------------------- void ofApp::draw() { ofSetColor(39); for (int i = 0; i < this->walker_list.size(); i++) { ofDrawCircle(this->walker_list[i], 4); for (int k = i + 1; k < this->walker_list.size(); k++) { if (glm::distance(this->walker_list[i], this->walker_list[k]) < 50) { ofDrawLine(this->walker_list[i], this->walker_list[k]); } } } for (int i = 0; i < this->polygon_list.size(); i++) { if (this->polygon_lile_list[i] > 128) { ofSetColor(this->polygon_color_list[i]); } else { ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_lile_list[i], 128, 0, 255, 0)); } this->polygon_list[i]->draw(); } } //-------------------------------------------------------------- void ofApp::sort(vector<glm::vec2>& vertices) { glm::vec2 tmp; for (int i = 0; i < vertices.size(); i++) { for (int k = i + 1; k < vertices.size(); k++) { if (vertices[i].x < vertices[k].x) { tmp = vertices[i]; vertices[i] = vertices[k]; vertices[k] = tmp; } } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |