プログラミング de 落描き – ページ 715 – クリエイティブ・コーディングによる生成物とソース

2019年1月10日2019年1月10日

Agents are moving on a character. openFrameworks

[ Video ]

[ About ]
文字の上を移動するエージェント。ofFboに文字を描写、エージェントの座標情報でピクセルへアクセスして境界判定

Agents are moving on a character. I draw character to ofFbo. Pixels access, and boundary determination from coordinate of agent.

[ Source ]

#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) {};

	int number_of_agent;
	int len_of_tail;
	vector<deque<glm::vec2>> logs;
	vector<glm::vec2> directions;
	vector<ofColor> colors;

	ofFbo fbo;
	ofPixels pixels;
};

#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) {};

int number_of_agent;

int len_of_tail;

vector<deque<glm::vec2>> logs;

vector<glm::vec2> directions;

vector<ofColor> colors;

ofFbo fbo;

ofPixels pixels;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetColor(0);

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->fbo.begin();
	ofClear(0);

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-bold.ttf", 300, true, true, true);
	string word = "CO";
	font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 - font.stringHeight(word) * 0.1);
	word = "DE";
	font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 1.1);

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	this->number_of_agent = 150;
	this->len_of_tail = 18;
	while (this->logs.size() < this->number_of_agent) {

		int x = ofRandom(ofGetWidth());
		int y = ofRandom(ofGetHeight());
		if (this->pixels.getColor(x, y) != ofColor(0, 0)) {

			deque<glm::vec2> log;
			log.push_front(glm::vec2(x, y));
			this->logs.push_back(log);
			this->directions.push_back(glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))));
			ofColor color;
			color.setHsb(ofRandom(255), 255, 230);
			this->colors.push_back(color);
		}
	}

	ofSetLineWidth(1.5);
}

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

	for (int i = 0; i < this->number_of_agent; i++) {

		glm::vec2 future = this->logs[i].front() + this->directions[i] * 5;
		int x = future.x;
		int y = future.y;

		while (this->pixels.getColor(x, y) == ofColor(0, 0)) {

			this->directions[i] = glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1)));

			future = this->logs[i].front() + this->directions[i] * 10;
			x = future.x;
			y = future.y;
		}

		this->logs[i].push_front(future);
		while (this->logs[i].size() > this->len_of_tail) {

			this->logs[i].pop_back();
		}
	}
}

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

	for (int i = 0; i < this->number_of_agent; i++) {

		for (int l = 0; l < this->logs[i].size() - 1; l++) {

			ofSetColor(255, ofMap(l, 0, this->len_of_tail, 255, 0));
			ofDrawLine(this->logs[i][l], this->logs[i][l + 1]);
		}

		ofSetColor(255);
		ofDrawCircle(this->logs[i].front(), 3);
	}
}

//--------------------------------------------------------------
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(0);

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

this->fbo.begin();

ofClear(0);

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-bold.ttf", 300, true, true, true);

string word = "CO";

font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 - font.stringHeight(word) * 0.1);

word = "DE";

font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 1.1);

this->fbo.end();

this->fbo.readToPixels(this->pixels);

this->number_of_agent = 150;

this->len_of_tail = 18;

while (this->logs.size() < this->number_of_agent) {

int x = ofRandom(ofGetWidth());

int y = ofRandom(ofGetHeight());

if (this->pixels.getColor(x, y) != ofColor(0, 0)) {

deque<glm::vec2> log;

log.push_front(glm::vec2(x, y));

this->logs.push_back(log);

this->directions.push_back(glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))));

ofColor color;

color.setHsb(ofRandom(255), 255, 230);

this->colors.push_back(color);

}

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

for (int i = 0; i < this->number_of_agent; i++) {

glm::vec2 future = this->logs[i].front() + this->directions[i] * 5;

int x = future.x;

int y = future.y;

while (this->pixels.getColor(x, y) == ofColor(0, 0)) {

this->directions[i] = glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1)));

future = this->logs[i].front() + this->directions[i] * 10;

x = future.x;

y = future.y;

}

this->logs[i].push_front(future);

while (this->logs[i].size() > this->len_of_tail) {

this->logs[i].pop_back();

}

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

void ofApp::draw() {

for (int i = 0; i < this->number_of_agent; i++) {

for (int l = 0; l < this->logs[i].size() - 1; l++) {

ofSetColor(255, ofMap(l, 0, this->len_of_tail, 255, 0));

ofDrawLine(this->logs[i][l], this->logs[i][l + 1]);

}

ofSetColor(255);

ofDrawCircle(this->logs[i].front(), 3);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190110

[ほしいものリスト]
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[ Sponsor Link ]

2019年1月9日2019年1月9日

Flock system with lifespan. openFrameworks

[ Video ]

[ About ]
NATURE OF CODEを参考にした群れシステムに寿命を追加。寿命と色の濃さが連動しており寿命と共に消えていきます。

Add lifespan to flock system created with reference to NATURE OF CODE.

[ Source ]

#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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	vector<unique_ptr<Particle>> particles;
};

#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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<unique_ptr<Particle>> particles;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(1.5);

	for (int i = 0; i < 80; i++) {

		auto particle = make_unique<Particle>();
		this->particles.push_back(move(particle));
	}
}

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

	if (ofGetFrameNum() % 3 == 0) {

		auto particle = make_unique<Particle>();
		this->particles.push_back(move(particle));
	}

	for (int i = this->particles.size() - 1; i > -1; i--) {

		this->particles[i]->think(this->particles);
		if (this->particles[i]->isDead()) {

			this->particles.erase(this->particles.begin() + i);
		}
	}

	for (auto& particle : this->particles) {

		particle->update();
	}
}

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

	for (auto& particle : this->particles) {

		particle->draw();
	}
}

//--------------------------------------------------------------
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(1.5);

for (int i = 0; i < 80; i++) {

auto particle = make_unique<Particle>();

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

}

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

void ofApp::update() {

if (ofGetFrameNum() % 3 == 0) {

auto particle = make_unique<Particle>();

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

}

for (int i = this->particles.size() - 1; i > -1; i--) {

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

if (this->particles[i]->isDead()) {

this->particles.erase(this->particles.begin() + i);

}

for (auto& particle : this->particles) {

particle->update();

}

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

void ofApp::draw() {

for (auto& particle : this->particles) {

particle->draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

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

	void think(vector<unique_ptr<Particle>>& particles);
	void update();
	void draw();
	glm::vec2 separate(vector<unique_ptr<Particle>>& particles);
	glm::vec2 align(vector<unique_ptr<Particle>>& particles);
	glm::vec2 cohesion(vector<unique_ptr<Particle>>& particles);
	glm::vec2 seek(glm::vec2 target);
	void applyForce(glm::vec2 force);
	bool isDead();

private:
	glm::vec2 location;
	glm::vec2 velocity;
	glm::vec2 acceleration;

	float range;
	float max_force;
	float max_speed;
	int wall;
	ofColor color;
	float initial_life;
	float life;
};

#pragma once

#include "ofMain.h"

class Particle {

public:

Particle();

~Particle();

void think(vector<unique_ptr<Particle>>& particles);

void update();

void draw();

glm::vec2 separate(vector<unique_ptr<Particle>>& particles);

glm::vec2 align(vector<unique_ptr<Particle>>& particles);

glm::vec2 cohesion(vector<unique_ptr<Particle>>& particles);

glm::vec2 seek(glm::vec2 target);

void applyForce(glm::vec2 force);

bool isDead();

private:

glm::vec2 location;

glm::vec2 velocity;

glm::vec2 acceleration;

float range;

float max_force;

float max_speed;

int wall;

ofColor color;

float initial_life;

float life;

};

#include "Particle.h"

Particle::Particle() {

	this->location = glm::vec2(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));
	this->velocity = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

	this->range = 40;
	this->max_force = 1;
	this->max_speed = 8;
	this->wall = 5;
	this->color.setHsb(ofRandom(255), 200, 230);
	this->initial_life = ofRandom(150, 300);
	this->life = this->initial_life;
}

Particle::~Particle() {

}

void Particle::think(vector<unique_ptr<Particle>>& particles) {

	// 寿命
	this->life -= 0.5;
	this->range = ofMap(this->life, this->initial_life, 0, 40, 5);

	// 分離
	glm::vec2 separate = this->separate(particles);
	this->applyForce(separate);

	// 整列
	glm::vec2 align = this->align(particles);
	this->applyForce(align);

	// 結合
	glm::vec2 cohesion = this->cohesion(particles);
	this->applyForce(cohesion);

	// 自我
	if (glm::length(this->velocity) > 0) {

		glm::vec2 future = glm::normalize(this->velocity) * this->range;
		future += this->location;

		float angle = ofRandom(360);
		glm::vec2 target = future + glm::vec2(this->range * 0.5 * cos(angle * DEG_TO_RAD), this->range * 0.5 * sin(angle * DEG_TO_RAD));

		glm::vec2 ego = this->seek(target);
		this->applyForce(ego);
	}

	// 境界
	glm::vec2 correction;
	if (this->location.x < this->wall) {

		correction += glm::vec2(max_speed, this->velocity.y);
	}
	else if (this->location.x > ofGetWidth() - this->wall) {

		correction += glm::vec2(-max_speed, this->velocity.y);
	}

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

		correction += glm::vec2(this->velocity.x, max_speed);
	}
	else if (this->location.y > ofGetHeight() - this->wall) {

		correction += glm::vec2(this->velocity.x, -max_speed);
	}

	if (glm::length(correction) > this->max_force) {

		correction = glm::normalize(correction) * this->max_force;
	}
	this->applyForce(correction);
}

void Particle::update() {

	this->velocity += this->acceleration;
	if (glm::length(this->velocity) > this->max_speed) {

		this->velocity = glm::normalize(this->velocity) * this->max_speed;
	}
	this->location += this->velocity;
	this->acceleration *= 0;
	this->velocity *= 0.9;
}

void Particle::draw() {

	ofSetColor(this->color, ofMap(this->life, this->initial_life, 0, 255, 0));
	
	float size = this->life > this->initial_life - 30 ? ofMap(this->life, this->initial_life, this->initial_life - 30, 1, 10) : 10;

	ofPushMatrix();
	ofTranslate(this->location);

	float angle = atan2f(this->velocity.y, this->velocity.x) * RAD_TO_DEG;
	ofBeginShape();
	for (int deg = angle - 110; deg < angle + 110; deg += 15) {

		ofVertex(glm::vec2(size * cos(deg * DEG_TO_RAD), size * sin(deg * DEG_TO_RAD)));
	}
	if (glm::length(this->velocity) > 0) {

		ofVertex(glm::normalize(this->velocity) * -size * 2);
	}
	ofEndShape();

	ofPopMatrix();
}

glm::vec2 Particle::separate(vector<unique_ptr<Particle>>& particles) {

	float tmp_range = this->range * 0.5;

	glm::vec2 result;
	glm::vec2 sum;
	int count = 0;
	for (auto& other : particles) {

		glm::vec2 difference = this->location - other->location;
		float len = glm::length(difference);
		if (len > 0 && len < tmp_range) {

			sum += glm::normalize(difference);
			count++;
		}
	}

	if (count > 0) {

		glm::vec2 avg = sum / count;
		avg = avg * this->max_speed;
		if (glm::length(avg) > this->max_speed) {

			avg = glm::normalize(avg) * this->max_speed;
		}
		glm::vec2 steer = avg - this->velocity;
		if (glm::length(steer) > this->max_force) {

			steer = glm::normalize(steer) * this->max_force;
		}
		result = steer;
	}

	return result;
}

glm::vec2 Particle::align(vector<unique_ptr<Particle>>& particles) {

	float tmp_range = this->range;

	glm::vec2 result;
	glm::vec2 sum;
	int count = 0;
	for (auto& other : particles) {

		glm::vec2 difference = this->location - other->location;
		float len = glm::length(difference);
		if (len > 0 && len < tmp_range) {

			sum += other->velocity;
			count++;
		}
	}

	if (count > 0) {

		glm::vec2 avg = sum / count;
		avg = avg * this->max_speed;
		if (glm::length(avg) > this->max_speed) {

			avg = glm::normalize(avg) * this->max_speed;
		}
		glm::vec2 steer = avg - this->velocity;
		if (glm::length(steer) > this->max_force) {

			steer = glm::normalize(steer) * this->max_force;
		}
		result = steer;
	}

	return result;
}

glm::vec2 Particle::cohesion(vector<unique_ptr<Particle>>& particles) {

	float tmp_range = this->range * 0.5;

	glm::vec2 result;
	glm::vec2 sum;
	int count = 0;
	for (auto& other : particles) {

		glm::vec2 difference = this->location - other->location;
		float len = glm::length(difference);
		if (len > 0 && len < tmp_range) {

			sum += other->location;
			count++;
		}
	}

	if (count > 0) {

		result = this->seek(sum / count);
	}

	return result;
}

glm::vec2 Particle::seek(glm::vec2 target) {

	glm::vec2 desired = target - this->location;
	float distance = glm::length(desired);
	desired = glm::normalize(desired);
	desired *= distance < this->range ? ofMap(distance, 0, this->range, 0, this->max_speed) : max_speed;
	glm::vec2 steer = desired - this->velocity;
	if (glm::length(steer) > this->max_force) {

		steer = glm::normalize(steer) * this->max_force;
	}
	return steer;
}

void Particle::applyForce(glm::vec2 force) {

	this->acceleration += force;
}

bool Particle::isDead() {

	return this->life < 0;
}

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#include "Particle.h"

Particle::Particle() {

this->location = glm::vec2(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));

this->velocity = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

this->range = 40;

this->max_force = 1;

this->max_speed = 8;

this->wall = 5;

this->color.setHsb(ofRandom(255), 200, 230);

this->initial_life = ofRandom(150, 300);

this->life = this->initial_life;

}

Particle::~Particle() {

}

void Particle::think(vector<unique_ptr<Particle>>& particles) {

// 寿命

this->life -= 0.5;

this->range = ofMap(this->life, this->initial_life, 0, 40, 5);

// 分離

glm::vec2 separate = this->separate(particles);

this->applyForce(separate);

// 整列

glm::vec2 align = this->align(particles);

this->applyForce(align);

// 結合

glm::vec2 cohesion = this->cohesion(particles);

this->applyForce(cohesion);

// 自我

if (glm::length(this->velocity) > 0) {

glm::vec2 future = glm::normalize(this->velocity) * this->range;

future += this->location;

float angle = ofRandom(360);

glm::vec2 target = future + glm::vec2(this->range * 0.5 * cos(angle * DEG_TO_RAD), this->range * 0.5 * sin(angle * DEG_TO_RAD));

glm::vec2 ego = this->seek(target);

this->applyForce(ego);

}

// 境界

glm::vec2 correction;

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

correction += glm::vec2(max_speed, this->velocity.y);

}

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

correction += glm::vec2(-max_speed, this->velocity.y);

}

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

correction += glm::vec2(this->velocity.x, max_speed);

}

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

correction += glm::vec2(this->velocity.x, -max_speed);

}

if (glm::length(correction) > this->max_force) {

correction = glm::normalize(correction) * this->max_force;

}

this->applyForce(correction);

}

void Particle::update() {

this->velocity += this->acceleration;

if (glm::length(this->velocity) > this->max_speed) {

this->velocity = glm::normalize(this->velocity) * this->max_speed;

}

this->location += this->velocity;

this->acceleration *= 0;

this->velocity *= 0.9;

}

void Particle::draw() {

ofSetColor(this->color, ofMap(this->life, this->initial_life, 0, 255, 0));

float size = this->life > this->initial_life - 30 ? ofMap(this->life, this->initial_life, this->initial_life - 30, 1, 10) : 10;

ofPushMatrix();

ofTranslate(this->location);

float angle = atan2f(this->velocity.y, this->velocity.x) * RAD_TO_DEG;

ofBeginShape();

for (int deg = angle - 110; deg < angle + 110; deg += 15) {

ofVertex(glm::vec2(size * cos(deg * DEG_TO_RAD), size * sin(deg * DEG_TO_RAD)));

}

if (glm::length(this->velocity) > 0) {

ofVertex(glm::normalize(this->velocity) * -size * 2);

}

ofEndShape();

ofPopMatrix();

}

glm::vec2 Particle::separate(vector<unique_ptr<Particle>>& particles) {

float tmp_range = this->range * 0.5;

glm::vec2 result;

glm::vec2 sum;

int count = 0;

for (auto& other : particles) {

glm::vec2 difference = this->location - other->location;

float len = glm::length(difference);

if (len > 0 && len < tmp_range) {

sum += glm::normalize(difference);

count++;

}

if (count > 0) {

glm::vec2 avg = sum / count;

avg = avg * this->max_speed;

if (glm::length(avg) > this->max_speed) {

avg = glm::normalize(avg) * this->max_speed;

}

glm::vec2 steer = avg - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

result = steer;

}

return result;

}

glm::vec2 Particle::align(vector<unique_ptr<Particle>>& particles) {

float tmp_range = this->range;

glm::vec2 result;

glm::vec2 sum;

int count = 0;

for (auto& other : particles) {

glm::vec2 difference = this->location - other->location;

float len = glm::length(difference);

if (len > 0 && len < tmp_range) {

sum += other->velocity;

count++;

}

if (count > 0) {

glm::vec2 avg = sum / count;

avg = avg * this->max_speed;

if (glm::length(avg) > this->max_speed) {

avg = glm::normalize(avg) * this->max_speed;

}

glm::vec2 steer = avg - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

result = steer;

}

return result;

}

glm::vec2 Particle::cohesion(vector<unique_ptr<Particle>>& particles) {

float tmp_range = this->range * 0.5;

glm::vec2 result;

glm::vec2 sum;

int count = 0;

for (auto& other : particles) {

glm::vec2 difference = this->location - other->location;

float len = glm::length(difference);

if (len > 0 && len < tmp_range) {

sum += other->location;

count++;

}

if (count > 0) {

result = this->seek(sum / count);

}

return result;

}

glm::vec2 Particle::seek(glm::vec2 target) {

glm::vec2 desired = target - this->location;

float distance = glm::length(desired);

desired = glm::normalize(desired);

desired *= distance < this->range ? ofMap(distance, 0, this->range, 0, this->max_speed) : max_speed;

glm::vec2 steer = desired - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

return steer;

}

void Particle::applyForce(glm::vec2 force) {

this->acceleration += force;

}

bool Particle::isDead() {

return this->life < 0;

}

[ Link ]
https://github.com/junkiyoshi/insta20190109

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2019年1月8日2019年1月8日

Band of squares. openFrameworks

[ Video ]

[ About ]
正方形の任意の点を結んで帯を作成

I created band by coordinate of square connect with lines.

[ Source ]

#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) {};

	glm::vec2 make_point(int len, int param);
};

#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) {};

glm::vec2 make_point(int len, int param);

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	int size = 144;
	for (int x = size * 0.5; x < ofGetWidth(); x += size) {

		for (int y = size * 0.5; y < ofGetHeight(); y += size) {

			for (int i = 0; i < 8; i++) {

				int line_param = ofRandom(1, 5);
				int start_param = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005) * 100;
				vector<glm::vec2> vertices;
				for (int param = start_param; param < start_param + line_param; param++) {

					vertices.push_back(glm::vec2(this->make_point(size * 0.95, param) + glm::vec2(x, y)));
				}

				start_param += 50 + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, -25, 25);
				for (int param = start_param; param < start_param + line_param; param++) {

					vertices.push_back(glm::vec2(this->make_point(size * 0.95, param) + glm::vec2(x, y)));
				}

				ofFill();
				ofSetColor(255, 128);

				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				ofNoFill();
				ofSetColor(255);

				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);
			}
		}
	}
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int size = 144;

for (int x = size * 0.5; x < ofGetWidth(); x += size) {

for (int y = size * 0.5; y < ofGetHeight(); y += size) {

for (int i = 0; i < 8; i++) {

int line_param = ofRandom(1, 5);

int start_param = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005) * 100;

vector<glm::vec2> vertices;

for (int param = start_param; param < start_param + line_param; param++) {

vertices.push_back(glm::vec2(this->make_point(size * 0.95, param) + glm::vec2(x, y)));

}

start_param += 50 + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, -25, 25);

for (int param = start_param; param < start_param + line_param; param++) {

vertices.push_back(glm::vec2(this->make_point(size * 0.95, param) + glm::vec2(x, y)));

}

ofFill();

ofSetColor(255, 128);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190108

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