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文字のParticleを線で結びました。Leap Motionから取得した指の座標からParticleが逃げます。
Escape from Index Finger.
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						#pragma once #include "ofMain.h" #include "ofFbo.h" #include "Particle.h" // Leap Motion SDK #include "Leap.h" #pragma comment(lib, "Leap.lib") class ofApp : public ofBaseApp { public: 	~ofApp(); 	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) {}; 	ofFbo fbo; 	ofTrueTypeFont font; 	vector<vector<Particle*>> particles; 	vector<ofColor> words_color; 	// Leap Motion 	Leap::Controller leap; };  | 
					
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						#include "ofApp.h" //-------------------------------------------------------------- ofApp::~ofApp() { 	for (int i = this->particles.size() - 1; i > -1; i--) { 		for (int j = this->particles[i].size() - 1; j > -1; j--) { 			delete this->particles[i][j]; 			this->particles[i].erase(this->particles[i].begin() + j); 		} 	} } //-------------------------------------------------------------- void ofApp::setup() { 	ofSetFrameRate(60); 	ofBackground(0); 	ofSetWindowTitle("Insta"); 	ofNoFill(); 	ofSetLineWidth(1.5); 	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); 	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 130, true, false, true); 	vector<string> words; 	words.push_back("FINGER"); 	words.push_back("Escape"); 	ofColor body_color; 	for (int word_index = 0; word_index < words.size(); word_index++) { 		ofVec2f word_size = ofVec2f(this->font.stringWidth(words[word_index]), -this->font.stringHeight(words[word_index])); 		vector<ofTTFCharacter> char_paths = this->font.getStringAsPoints(words[word_index]); 		vector<Particle*> tmp_particles; 		for (int path_index = 0; path_index < char_paths.size(); path_index++) { 			vector<ofPolyline> outline = char_paths[path_index].getOutline(); 			for (int outline_index = 0; outline_index < outline.size(); outline_index++) { 				outline[outline_index] = outline[outline_index].getResampledBySpacing(5); 				tmp_particles.clear(); 				tmp_particles.shrink_to_fit(); 				vector<ofPoint> vertices = outline[outline_index].getVertices(); 				for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) { 					ofVec2f location = vertices[vertices_index] - word_size / 2; 					location.y = location.y + 75 * (word_index - 1); 					tmp_particles.push_back(new Particle(location, ofColor(255))); 				} 				this->particles.push_back(tmp_particles); 				ofColor moji_color; 				moji_color.setHsb(ofRandom(255), 255, 255); 				this->words_color.push_back(moji_color); 			} 		} 	} 	this->fbo.allocate(ofGetWidth(), ofGetHeight()); } //-------------------------------------------------------------- void ofApp::update() { 	ofVec2f finger_point; 	float power; 	Leap::Frame frame = leap.frame(); 	for (Leap::Hand hand : frame.hands()) { 		for (Leap::Finger finger : hand.fingers()) { 			if (finger.type() == Leap::Finger::TYPE_INDEX) { 				int x = ofMap(finger.tipPosition().x, -300, 300, -ofGetWidth() / 2, ofGetWidth() / 2); 				int y = ofMap(finger.tipPosition().y, 0, 300, ofGetHeight() / 2, -ofGetHeight() / 2); 				power = ofMap(finger.tipPosition().z, 100, -100, 0, 100); 				finger_point = ofVec3f(x, y); 			} 		} 	} 	this->fbo.begin(); 	ofClear(0); 	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2); 	ofDrawCircle(finger_point, 3); 	for (int i = 0; i < this->particles.size(); i++) { 		for (int j = 0; j < this->particles[i].size(); j++) { 			float distance = finger_point.distance(this->particles[i][j]->get_location()); 			if (distance <  power) { 				this->particles[i][j]->seek_r(finger_point); 				this->particles[i][j]->seek(this->particles[i][j]->get_start_location()); 			} 			else { 				this->particles[i][j]->seek(this->particles[i][j]->get_start_location()); 			} 			this->particles[i][j]->update(); 		} 	} 	for (int i = 0; i < this->particles.size(); i++) { 		ofSetColor(this->words_color[i]); 		ofBeginShape(); 		for (int j = 0; j < this->particles[i].size(); j++) { 			//this->particles[i][j]->draw(); 			ofVertex(this->particles[i][j]->get_location().x, this->particles[i][j]->get_location().y); 		} 		ofEndShape(true); 	} 	this->fbo.end(); } //-------------------------------------------------------------- void ofApp::draw() { 	this->fbo.draw(0, 0); } //-------------------------------------------------------------- int main() { 	ofSetupOpenGL(720, 720, OF_WINDOW); 	ofRunApp(new ofApp()); }  | 
					
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						#pragma once #include "ofMain.h" class Particle { public: 	Particle(); 	Particle(ofVec3f location, ofColor body_color); 	~Particle(); 	void apply_force(ofVec3f force); 	void seek(ofVec3f target); 	void seek_r(ofVec3f target); 	void update(); 	void draw(); 	ofVec3f get_location(); 	ofVec3f get_start_location(); private: 	float size; 	ofVec3f location; 	ofVec3f start_location; 	ofVec3f velocity; 	ofVec3f acceleration; 	float max_force; 	float max_speed; 	float radius; 	ofColor body_color; };  | 
					
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						#include "Particle.h" Particle::Particle() : Particle(ofVec3f(0, 0, 0), ofColor(255)) { } Particle::Particle(ofVec3f location, ofColor body_color) { 	this->location = location; 	this->start_location = location; 	this->velocity = ofVec3f(); 	this->acceleration = ofVec3f(); 	this->size = 5; 	this->body_color = body_color; 	this->radius = radius; 	this->max_force = 100; 	this->max_speed = 6000; 	this->radius = 1; } Particle::~Particle() { } void Particle::apply_force(ofVec3f force) { 	this->acceleration += force; } void Particle::seek(ofVec3f target) { 	ofVec3f desired = target - this->location; 	float distance = desired.length(); 	desired.normalize(); 	if (distance < this->radius) 	{ 		if (distance < 1) { 			this->location = this->start_location; 			return; 		} else { 			distance *= ofMap(distance, 0, this->radius, 0, this->max_speed); 		} 	} 	else { 		distance *= max_speed; 	} 	ofVec3f steer = desired - this->velocity; 	steer.limit(this->max_force); 	apply_force(steer); } void Particle::seek_r(ofVec3f target) { 	ofVec3f desired = target - this->location; 	desired.normalize(); 	desired *= this->max_speed * 0.5; 	ofVec3f steer = desired - this->velocity; 	steer.limit(this->max_force * 0.5); 	steer *= -1; 	apply_force(steer); } void Particle::update() { 	this->velocity += this->acceleration; 	//this->velocity.limit(this->max_speed); 	this->location += this->velocity; 	this->acceleration *= 0; 	this->velocity *= 0.98; } void Particle::draw() { 	ofSetColor(this->body_color); 	ofDrawCircle(this->location, this->size); } ofVec3f Particle::get_location() { return this->location; } ofVec3f Particle::get_start_location() { return this->start_location; }  |