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Particleをsin波で移動させています。
Particle is moved by sin wave.
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#pragma once #include "ofMain.h" #include "Particle.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<shared_ptr<Particle>> particles; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(255); ofSetWindowTitle("Insta"); ofEnableDepthTest(); //ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); for (int i = 0; i < 128; i++) { this->particles.push_back(shared_ptr<Particle>(new Particle())); } } //-------------------------------------------------------------- void ofApp::update() { for(int i = 0; i < this->particles.size(); i++){ this->particles[i]->update(); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); for (int i = 0; i < this->particles.size(); i++) { this->particles[i]->draw(this->particles); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
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#pragma once #include "ofMain.h" class Particle { public: Particle(); ~Particle() {}; void update(); void draw(vector<shared_ptr<Particle>> particles); ofVec2f get_location(); private: ofVec2f location; ofVec2f velocity; ofColor body_color; }; |
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#include "Particle.h" Particle::Particle(){ this->location = ofVec2f(ofRandom(-ofGetWidth() / 2, ofGetWidth() / 2)); this->velocity = ofVec2f(ofRandom(1.5, 3.0), 0); //this->body_color.setHsb(ofRandom(255), 255, 255); this->body_color = ofColor(0); } void Particle::update() { float x = this->location.x + this->velocity.x; float y = sin(x * this->velocity.x * 0.0025) * ofGetHeight() * 0.5; this->location = ofVec2f(x, y); if (this->location.x > ofGetWidth() / 2 + 3) { this->location.x = -ofGetWidth() / 2 - 3; } } void Particle::draw(vector<shared_ptr<Particle>> particles) { ofSetColor(this->body_color); ofDrawCircle(this->location, 3); float distance; for (int i = 0; i < particles.size(); i++) { distance = this->location.distance(particles[i]->get_location()); if (distance > 0 && distance < 64) { ofSetColor(this->body_color, 255 - distance); ofDrawLine(this->location, particles[i]->get_location()); } } } ofVec2f Particle::get_location() { return this->location; } |