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ランダム・ウォーカー。
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #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 windowResized(int w, int h) {}; 	void dragEvent(ofDragInfo dragInfo) {}; 	void gotMessage(ofMessage msg) {}; 	vector<glm::vec2> noise_seed_list; 	vector<glm::vec2> location_list; 	vector<glm::vec2> velocity_list; 	vector<ofColor> color_list; 	vector<float> size_list; }; | 
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | #include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { 	ofSetFrameRate(60); 	ofSetWindowTitle("openFrameworks"); 	ofBackground(239); 	ofSetCircleResolution(60); 	for (int i = 0; i < 2; i++) { 		this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000))); 	} } //-------------------------------------------------------------- void ofApp::update() { 	int index = 0; 	auto radius = 30; 	ofColor color; 	for (auto& noise_seed : this->noise_seed_list) { 		auto location = glm::vec2( 			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0085), 0, 1, -320, 320), 			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0085), 0, 1, -320, 320) 		); 		auto next = glm::vec2( 			ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0085), 0, 1, -320, 320), 			ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0085), 0, 1, -320, 320) 		); 		auto distance = location - next; 		distance *= 1; 		for (int i = 0; i < 3; i++) { 			auto future = location + distance * 8; 			auto random_deg = ofRandom(360); 			future += glm::vec2(10 * cos(random_deg * DEG_TO_RAD), 10 * sin(random_deg * DEG_TO_RAD)); 			auto future_distance = future - location; 			this->location_list.push_back(location); 			this->velocity_list.push_back(glm::normalize(future_distance) * 5); 			this->size_list.push_back(ofRandom(5, 10)); 			color.setHsb((int)ofRandom(180 + index * 128, 255 + index * 128) % 255, 200, 255); 			this->color_list.push_back(color); 		} 		index++; 	} 	for (int i = this->location_list.size() - 1; i > -1; i--) { 		this->location_list[i] += this->velocity_list[i]; 		this->velocity_list[i] *= 1.01; 		this->size_list[i] *= 1.01; 		if (this->color_list[i].getBrightness() > 0) { this->color_list[i].setBrightness(this->color_list[i].getBrightness() - 3); } 		if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) { 			this->location_list.erase(this->location_list.begin() + i); 			this->velocity_list.erase(this->velocity_list.begin() + i); 			this->size_list.erase(this->size_list.begin() + i); 			this->color_list.erase(this->color_list.begin() + i); 		} 	} } //-------------------------------------------------------------- void ofApp::draw() { 	ofTranslate(ofGetWindowSize() * 0.5); 	int index = 0; 	for (auto& location : this->location_list) { 		ofSetColor(255, this->color_list[index].getBrightness()); 		ofPushMatrix(); 		ofTranslate(location); 		ofDrawCircle(glm::vec2(), this->size_list[index] * 1.3); 		ofPopMatrix(); 		index++; 	} 	index = 0; 	for (auto& location : this->location_list) { 		ofSetColor(this->color_list[index]); 		ofPushMatrix(); 		ofTranslate(location); 		ofDrawCircle(glm::vec2(), this->size_list[index++]); 		ofPopMatrix(); 	} } //-------------------------------------------------------------- int main() { 	ofSetupOpenGL(720, 720, OF_WINDOW); 	ofRunApp(new ofApp()); } |