Particle – ページ 22 – プログラミング de 落描き

2018年1月24日2018年1月23日

Particleで文字を書く openFrameworks

[ Video ]

[ About ]
Particleが文字の輪郭が近づくとLineが引かれます。普段はParticle同士で線を引いていますが、別のオブジェクトの関係に変えてみました。

それぞれのSNSにアップロードしたときにエンコードが加わって絵がつぶれてしまうかも(つぶれてますね)知れませんが綺麗です。特別なaddonが無くてもopenFrameworksのみで動きますので、動かす環境がある方は是非、実機でご確認下さい。

OpenCVでエッジを抽出して、エッジ × Particleも面白いのが出来るかも。

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofFbo.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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	ofFbo fbo;

	ofTrueTypeFont font;
	string words;
	ofPoint words_size;
	vector<ofTTFCharacter> paths;

	vector<unique_ptr<Particle>> particles;
};

#pragma once

#include "ofMain.h"

#include "ofFbo.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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofFbo fbo;

ofTrueTypeFont font;

string words;

ofPoint words_size;

vector<ofTTFCharacter> paths;

vector<unique_ptr<Particle>> particles;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetLineWidth(1.3);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, false, true);
	this->words = "YES";
	this->words_size = ofPoint(this->font.stringWidth(this->words), this->font.stringHeight(this->words));
	this->paths = this->font.getStringAsPoints(this->words);

	for (int i = 0; i < 512; i++) {

		unique_ptr<Particle> particle(new Particle());
		this->particles.push_back(std::move(particle));
	}

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
}

//--------------------------------------------------------------
void ofApp::update() {

	this->fbo.begin();
	ofClear(0);
	
	for (int i = 0; i < this->particles.size(); i++) {

		this->particles[i]->update();
	}

	for (int p_index = 0; p_index < this->paths.size(); p_index++) {

		vector<ofPolyline> outline = this->paths[p_index].getOutline();
		for (int o_index = 0; o_index < outline.size(); o_index++) {

			outline[o_index] = outline[o_index].getResampledBySpacing(15);
			vector<ofPoint> vertices = outline[o_index].getVertices();
			for (int v_index = 0; v_index < vertices.size(); v_index++) {

				ofPoint point = vertices[v_index] + ofPoint(ofGetWidth() / 2, ofGetHeight() / 2) - ofPoint(this->words_size.x / 2, -this->words_size.y / 2);
				for (int i = 0; i < this->particles.size(); i++) {

					float distance = this->particles[i]->get_location().distance(point);
					if (distance < 80) {

						ofSetColor(this->particles[i]->get_body_color(), ofMap(distance, 0, 80, 255, 0));
						ofDrawLine(point, this->particles[i]->get_location());
					}
				}
			}
		}
	}

	this->fbo.end();
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->fbo.draw(0, 0);
}

//========================================================================
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetLineWidth(1.3);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, false, true);

this->words = "YES";

this->words_size = ofPoint(this->font.stringWidth(this->words), this->font.stringHeight(this->words));

this->paths = this->font.getStringAsPoints(this->words);

for (int i = 0; i < 512; i++) {

unique_ptr<Particle> particle(new Particle());

this->particles.push_back(std::move(particle));

}

this->fbo.allocate(ofGetWidth(), ofGetHeight());

}

//--------------------------------------------------------------

void ofApp::update() {

this->fbo.begin();

ofClear(0);

for (int i = 0; i < this->particles.size(); i++) {

this->particles[i]->update();

}

for (int p_index = 0; p_index < this->paths.size(); p_index++) {

vector<ofPolyline> outline = this->paths[p_index].getOutline();

for (int o_index = 0; o_index < outline.size(); o_index++) {

outline[o_index] = outline[o_index].getResampledBySpacing(15);

vector<ofPoint> vertices = outline[o_index].getVertices();

for (int v_index = 0; v_index < vertices.size(); v_index++) {

ofPoint point = vertices[v_index] + ofPoint(ofGetWidth() / 2, ofGetHeight() / 2) - ofPoint(this->words_size.x / 2, -this->words_size.y / 2);

for (int i = 0; i < this->particles.size(); i++) {

float distance = this->particles[i]->get_location().distance(point);

if (distance < 80) {

ofSetColor(this->particles[i]->get_body_color(), ofMap(distance, 0, 80, 255, 0));

ofDrawLine(point, this->particles[i]->get_location());

}

this->fbo.end();

}

//--------------------------------------------------------------

void ofApp::draw() {

this->fbo.draw(0, 0);

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Particle
{
public:
	Particle();
	~Particle() {};

	void apply_force(ofVec2f force);
	void update();
	void draw();

	void set_color(ofColor body_color);
	ofVec2f get_location();
	ofColor get_body_color();

private:
	ofVec2f location;
	ofVec2f velocity;
	ofVec2f acceleration;
	ofColor body_color;
};

#pragma once

#include "ofMain.h"

class Particle

{

public:

Particle();

~Particle() {};

void apply_force(ofVec2f force);

void update();

void draw();

void set_color(ofColor body_color);

ofVec2f get_location();

ofColor get_body_color();

private:

ofVec2f location;

ofVec2f velocity;

ofVec2f acceleration;

ofColor body_color;

};

#include "Particle.h"

Particle::Particle() {

	this->location = ofVec2f(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));
	this->velocity = ofVec2f(ofRandom(-3, 3), ofRandom(-3, 3));
	this->velocity = this->velocity.normalized() * ofRandom(1, 3);
	this->acceleration = ofVec2f();
	this->body_color.setHsb(ofRandom(255), 255, 255);
}

void Particle::apply_force(ofVec2f force) {

	this->acceleration += force;
}

void Particle::update() {

	this->acceleration += this->velocity;
	this->location += this->acceleration;
	this->acceleration *= 0;

	if (this->location.x < 0) {

		this->location.x = 0;
		this->velocity.x *= -1;
	}
	else if (this->location.x > ofGetWidth()) {

		this->location.x = ofGetWidth();
		this->velocity.x *= -1;
	}

	if (this->location.y < 0) {

		this->location.y = 0;
		this->velocity.y *= -1;
	}
	else if (this->location.y > ofGetHeight()) {

		this->location.y = ofGetHeight();
		this->velocity.y *= -1;
	}
}

void Particle::draw() {

	ofSetColor(this->body_color);
	ofDrawCircle(this->location, 3);
}

void Particle::set_color(ofColor body_color) {
	
	this->body_color = body_color;
}

ofVec2f Particle::get_location() {

	return this->location;
}

ofColor Particle::get_body_color() {

	return this->body_color;
}

#include "Particle.h"

Particle::Particle() {

this->location = ofVec2f(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));

this->velocity = ofVec2f(ofRandom(-3, 3), ofRandom(-3, 3));

this->velocity = this->velocity.normalized() * ofRandom(1, 3);

this->acceleration = ofVec2f();

this->body_color.setHsb(ofRandom(255), 255, 255);

}

void Particle::apply_force(ofVec2f force) {

this->acceleration += force;

}

void Particle::update() {

this->acceleration += this->velocity;

this->location += this->acceleration;

this->acceleration *= 0;

if (this->location.x < 0) {

this->location.x = 0;

this->velocity.x *= -1;

}

else if (this->location.x > ofGetWidth()) {

this->location.x = ofGetWidth();

this->velocity.x *= -1;

}

if (this->location.y < 0) {

this->location.y = 0;

this->velocity.y *= -1;

}

else if (this->location.y > ofGetHeight()) {

this->location.y = ofGetHeight();

this->velocity.y *= -1;

}

void Particle::draw() {

ofSetColor(this->body_color);

ofDrawCircle(this->location, 3);

}

void Particle::set_color(ofColor body_color) {

this->body_color = body_color;

}

ofVec2f Particle::get_location() {

return this->location;

}

ofColor Particle::get_body_color() {

return this->body_color;

}

[ Link ]
https://github.com/junkiyoshi/Insta20180123

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2018年1月5日2018年1月10日

Insta20180104

[ Video ]

[ About ]
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.

[ Source ]

#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;
};

#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;

};

#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());
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

#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());

}

#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;
};

#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;

};

#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; }

#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; }

[ Link ]
https://github.com/junkiyoshi/Insta20180104

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2018年1月4日2018年1月10日

Insta20180103

[ Video ]

[ About ]
TrueTypeFontから輪郭の座標を取得して逃げるParticleを生成。
Particle created from TrueTypeFont locations.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofFbo.h"
#include "Particle.h"

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;
};

#pragma once

#include "ofMain.h"

#include "ofFbo.h"

#include "Particle.h"

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;

};

#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(30);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetLineWidth(0.5);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 150, true, false, true);

	vector<string> words;
	words.push_back("CODE");
	words.push_back("+");
	words.push_back("LIFE");

	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();
			body_color.setHsb(ofRandom(255), 255, 255);

			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 + 150 * (word_index - 1);
					tmp_particles.push_back(new Particle(location, body_color));
				}

				this->particles.push_back(tmp_particles);
			}
		}
	}

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
}

//--------------------------------------------------------------
void ofApp::update() {

	this->fbo.begin();
	ofClear(0);
	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

	ofVec2f mouse_point = ofVec2f(ofGetMouseX() - ofGetWidth() / 2, ofGetMouseY() - ofGetHeight() / 2);
	ofDrawCircle(mouse_point, 3);

	for (int i = 0; i < this->particles.size(); i++) {
		for (int j = 0; j < this->particles[i].size(); j++) {
			float distance = mouse_point.distance(this->particles[i][j]->get_location());

			if (distance < 50) {
				this->particles[i][j]->seek_r(mouse_point);
			}
			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++) {
		//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());
}

100

101

102

103

104

105

106

107

#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(30);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetLineWidth(0.5);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 150, true, false, true);

vector<string> words;

words.push_back("CODE");

words.push_back("+");

words.push_back("LIFE");

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();

body_color.setHsb(ofRandom(255), 255, 255);

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 + 150 * (word_index - 1);

tmp_particles.push_back(new Particle(location, body_color));

}

this->particles.push_back(tmp_particles);

}

this->fbo.allocate(ofGetWidth(), ofGetHeight());

}

//--------------------------------------------------------------

void ofApp::update() {

this->fbo.begin();

ofClear(0);

ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

ofVec2f mouse_point = ofVec2f(ofGetMouseX() - ofGetWidth() / 2, ofGetMouseY() - ofGetHeight() / 2);

ofDrawCircle(mouse_point, 3);

for (int i = 0; i < this->particles.size(); i++) {

for (int j = 0; j < this->particles[i].size(); j++) {

float distance = mouse_point.distance(this->particles[i][j]->get_location());

if (distance < 50) {

this->particles[i][j]->seek_r(mouse_point);

}

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++) {

//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());

}

#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;
};

#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;

};

#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 = 10;
	this->max_speed = 300;
	this->radius = 5;
}

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; }

#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 = 10;

this->max_speed = 300;

this->radius = 5;

}

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; }

[ Link ]
https://github.com/junkiyoshi/Insta20180103

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年4月
月	火	水	木	金	土	日
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