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格子！格子！格子！
Lattice! Lattice! Lattice!
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#pragma once #include "ofMain.h" #include <random> #include <algorithm> 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) {}; glm::vec2 make_point(int len, int param); vector<int> params; vector<ofColor> colors; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetLineWidth(3); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5)); int len = 720; if (ofGetFrameNum() % 2 == 0) { ofColor color; color.setHsb((int)ofRandom(ofGetFrameNum(), ofGetFrameNum() + 50) % 255, 200, 255); this->params.push_back(ofRandom(0, 50)); this->colors.push_back(color); } while (this->params.size() > 120) { this->params.erase(this->params.begin()); this->colors.erase(this->colors.begin()); } for (int i = 0; i < this->params.size(); i++) { int p = this->params[i] * 2; if (p > 50) { ofPushMatrix(); ofRotate(90); } vector<glm::vec2> vertices; vertices.push_back(this->make_point(len, p)); vertices.push_back(this->make_point(len, p + 1)); vertices.push_back(this->make_point(len, 100 - p - 1)); vertices.push_back(this->make_point(len, 100 - p)); ofFill(); ofSetColor(this->colors[i], ofMap(i, 0, this->params.size(), 32, 255)); ofBeginShape(); ofVertices(vertices); ofEndShape(true); ofNoFill(); ofSetColor(39, ofMap(i, 0, this->params.size(), 32, 255)); ofBeginShape(); ofVertices(vertices); ofEndShape(true); if (p > 50) { ofPopMatrix(); } } } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param) { param = param % 100; if (param < 25) { return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5); } else if (param < 50) { return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5)); } else if (param < 75) { return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5); } else { return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5)); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |