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豪雨。
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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) {}; ofEasyCam cam; vector<glm::vec3> location_list; vector<float> radius_list; vector<float> speed_list; vector<float> max_radius_list; vector<ofColor> color_list; glm::vec2 noise_seed; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofNoFill(); ofEnableDepthTest(); this->noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000)); } //-------------------------------------------------------------- void ofApp::update() { for (int i = this->location_list.size() - 1; i >= 0; i--) { if (this->location_list[i].z < 0) { this->location_list[i].z += 30; continue; } this->radius_list[i] += this->speed_list[i]; if (this->radius_list[i] > this->max_radius_list[i]) { this->location_list.erase(this->location_list.begin() + i); this->radius_list.erase(this->radius_list.begin() + i); this->speed_list.erase(this->speed_list.begin() + i); this->max_radius_list.erase(this->max_radius_list.begin() + i); this->color_list.erase(this->color_list.begin() + i); } } ofColor color; for (int i = 0; i < 24; i++) { auto radius = ofMap(sin(ofGetFrameNum() * 0.05), -1, 1, 200, 300); auto deg = ofGetFrameNum() * 2.88 + (i % 3) * 120; auto location = glm::vec3( radius * cos(deg * DEG_TO_RAD) + ofRandom(-35, 35), radius * sin(deg * DEG_TO_RAD) + ofRandom(-35, 35), -300); this->location_list.push_back(location); this->radius_list.push_back(1); this->speed_list.push_back(ofRandom(0.7, 1.7)); this->max_radius_list.push_back(ofRandom(5, 20)); this->color_list.push_back(ofColor(0)); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); for (int i = 0; i < this->location_list.size(); i++) { if (this->radius_list[i] < this->max_radius_list[i] * 0.5) { ofSetColor(this->color_list[i]); } else { ofSetColor(ofColor(this->color_list[i], ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0))); } if (this->location_list[i].z < 0) { ofSetColor(this->color_list[i], 128); ofDrawLine(this->location_list[i], this->location_list[i] - glm::vec3(0, 0, 30)); continue; } ofDrawCircle(glm::vec2(this->location_list[i]), this->radius_list[i]); } this->cam.end(); /* int start = 75; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |