2022年2月 – ページ 5 – プログラミング de 落描き

2022年2月16日

Soft Pink. Draw by openFrameworks

[ Video ]

[ Souce ]
配色デザインインスピレーションブックⅢという本を購入して参照しました。

Soft Pink.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);
	ofSetCircleResolution(60);
}

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

	ofSeedRandom(39);
}

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

	// 配色デザイン P192 ソフトピンク
	vector<ofColor> colors;
	colors.push_back(ofColor(221, 155, 165));
	colors.push_back(ofColor(224, 186, 212));
	colors.push_back(ofColor(229, 181, 161));
	colors.push_back(ofColor(208, 130, 139));
	colors.push_back(ofColor(202, 72, 90));
	colors.push_back(ofColor(163, 150, 197));
	colors.push_back(ofColor(184, 145, 26));
	colors.push_back(ofColor(250, 241, 239));

	int span = 144;
	for (int x = span; x <= 720 - span; x += span) {

		for (int y = span; y <= 720 - span; y += span) {

			ofPushMatrix();
			ofTranslate(x, y);

			int color_1_index = ofRandom(colors.size());
			int color_2_index = (color_1_index + (int)ofRandom(1, colors.size() - 1)) % colors.size();
			int color_3_index = (color_2_index + (int)ofRandom(1, colors.size() - 1)) % colors.size();

			ofFill();
			ofSetColor(colors[color_1_index]);
			ofDrawCircle(glm::vec3(), 58);

			ofNoFill();
			ofSetColor(colors[color_2_index]);
			ofDrawCircle(glm::vec3(), 58);

			for (auto head_size = 4; head_size <= 9; head_size += 5) {

				if (head_size == 4) {

					ofSetColor(colors[color_2_index]);
				}
				else {

					ofSetColor(colors[color_3_index]);
				}

				ofMesh mesh;
				vector<glm::vec3> right, left, frame;
				auto noise_seed_deg = ofRandom(1000);
				auto noise_seed_radius = ofRandom(1000);

				glm::vec3 last_location;
				float last_theta, last_radius;

				for (int i = 0; i < 25; i++) {

					auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.005), 0, 1, -360, 360);
					auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);
					auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -360, 360);
					auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -50, 50);

					auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);
					auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

					auto direction = next - location;
					auto theta = atan2(direction.y, direction.x);

					right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta + PI * 0.5), 0));
					left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta - PI * 0.5), 0));

					last_location = location;
					last_theta = theta;
					last_radius = noise_radius;
				}

				for (int i = 0; i < right.size(); i++) {

					mesh.addVertex(left[i]);
					mesh.addVertex(right[i]);
				}

				for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

					mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);
					mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);
				}

				auto tmp_head_size = ofMap(mesh.getNumVertices() - 2, 0, mesh.getNumVertices(), 0, head_size);

				mesh.addVertex(last_location);
				int index = mesh.getNumVertices();
				for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

					mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
					frame.push_back(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
				}

				for (int i = index; i < mesh.getNumVertices() - 1; i++) {

					mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);
				}

				int span = ofRandom(3, 6);
				int deg_span = 360 / span;
				for (int deg = 0; deg < 360; deg += 30) {

					ofRotate(deg_span);
					mesh.draw();
				}
			}

			ofPopMatrix();
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetCircleResolution(60);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

// 配色デザイン P192 ソフトピンク

vector<ofColor> colors;

colors.push_back(ofColor(221, 155, 165));

colors.push_back(ofColor(224, 186, 212));

colors.push_back(ofColor(229, 181, 161));

colors.push_back(ofColor(208, 130, 139));

colors.push_back(ofColor(202, 72, 90));

colors.push_back(ofColor(163, 150, 197));

colors.push_back(ofColor(184, 145, 26));

colors.push_back(ofColor(250, 241, 239));

int span = 144;

for (int x = span; x <= 720 - span; x += span) {

for (int y = span; y <= 720 - span; y += span) {

ofPushMatrix();

ofTranslate(x, y);

int color_1_index = ofRandom(colors.size());

int color_2_index = (color_1_index + (int)ofRandom(1, colors.size() - 1)) % colors.size();

int color_3_index = (color_2_index + (int)ofRandom(1, colors.size() - 1)) % colors.size();

ofFill();

ofSetColor(colors[color_1_index]);

ofDrawCircle(glm::vec3(), 58);

ofNoFill();

ofSetColor(colors[color_2_index]);

ofDrawCircle(glm::vec3(), 58);

for (auto head_size = 4; head_size <= 9; head_size += 5) {

if (head_size == 4) {

ofSetColor(colors[color_2_index]);

}

else {

ofSetColor(colors[color_3_index]);

}

ofMesh mesh;

vector<glm::vec3> right, left, frame;

auto noise_seed_deg = ofRandom(1000);

auto noise_seed_radius = ofRandom(1000);

glm::vec3 last_location;

float last_theta, last_radius;

for (int i = 0; i < 25; i++) {

auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.005), 0, 1, -360, 360);

auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);

auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -360, 360);

auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -50, 50);

auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);

auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

last_radius = noise_radius;

}

for (int i = 0; i < right.size(); i++) {

mesh.addVertex(left[i]);

mesh.addVertex(right[i]);

}

for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);

mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);

}

auto tmp_head_size = ofMap(mesh.getNumVertices() - 2, 0, mesh.getNumVertices(), 0, head_size);

mesh.addVertex(last_location);

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

frame.push_back(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

}

for (int i = index; i < mesh.getNumVertices() - 1; i++) {

mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);

}

int span = ofRandom(3, 6);

int deg_span = 360 / span;

for (int deg = 0; deg < 360; deg += 30) {

ofRotate(deg_span);

mesh.draw();

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220216

2022年2月15日2022年2月15日

Connect points with curve. Draw by openFrameworks

[ Video ]

[ About ]
ベジェ曲線でランダムな点を結ぶ。

Connect random points with Bezier curves.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetColor(0);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	vector<glm::vec2> location_list;
	vector<float> deg_list;
	vector<bool> flag_list;
	vector<int> near_index_list;

	for (int i = 0; i < 65; i++) {

		location_list.push_back(glm::vec2(ofRandom(50, ofGetWidth() - 50), ofRandom(50, ofGetHeight() - 50)));
		deg_list.push_back(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, -360, 360));
		flag_list.push_back(false);
	}

	for (int i = 0; i < location_list.size(); i++) {

		ofNoFill();
		for (int k = i + 1; k < location_list.size(); k++) {

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < 80) {

				auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD));
				auto handle_2 = location_list[k] + glm::vec2(50 * cos(deg_list[k] * DEG_TO_RAD), 50 * sin(deg_list[k] * DEG_TO_RAD));

				ofBeginShape();
				ofVertex(location_list[i]);
				ofBezierVertex(handle_1, handle_2, location_list[k]);
				ofEndShape();

				flag_list[i] = true;
				flag_list[k] = true;
			}
		}

		ofFill();
		ofDrawCircle(location_list[i], 5);
	}

	ofNoFill();
	for (int i = 0; i < location_list.size(); i++) {

		if (flag_list[i] == false) {

			float min_distance = ofGetWidth() + ofGetHeight();
			int min_index = 0;
			for (int k = 0; k < location_list.size(); k++) {

				if (i == k) { continue; }
				auto distance = glm::distance(location_list[i], location_list[k]);
				if (distance < min_distance) {

					min_distance = distance;
					min_index = k;
				}
			}

			auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD));
			auto handle_2 = location_list[min_index] + glm::vec2(50 * cos(deg_list[min_index] * DEG_TO_RAD), 50 * sin(deg_list[min_index] * DEG_TO_RAD));

			ofBeginShape();
			ofVertex(location_list[i]);
			ofBezierVertex(handle_1, handle_2, location_list[min_index]);
			ofEndShape();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<glm::vec2> location_list;

vector<float> deg_list;

vector<bool> flag_list;

vector<int> near_index_list;

for (int i = 0; i < 65; i++) {

location_list.push_back(glm::vec2(ofRandom(50, ofGetWidth() - 50), ofRandom(50, ofGetHeight() - 50)));

deg_list.push_back(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, -360, 360));

flag_list.push_back(false);

}

for (int i = 0; i < location_list.size(); i++) {

ofNoFill();

for (int k = i + 1; k < location_list.size(); k++) {

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < 80) {

auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD));

auto handle_2 = location_list[k] + glm::vec2(50 * cos(deg_list[k] * DEG_TO_RAD), 50 * sin(deg_list[k] * DEG_TO_RAD));

ofBeginShape();

ofVertex(location_list[i]);

ofBezierVertex(handle_1, handle_2, location_list[k]);

ofEndShape();

flag_list[i] = true;

flag_list[k] = true;

}

ofFill();

ofDrawCircle(location_list[i], 5);

}

ofNoFill();

for (int i = 0; i < location_list.size(); i++) {

if (flag_list[i] == false) {

float min_distance = ofGetWidth() + ofGetHeight();

int min_index = 0;

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < min_distance) {

min_distance = distance;

min_index = k;

}

auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD));

auto handle_2 = location_list[min_index] + glm::vec2(50 * cos(deg_list[min_index] * DEG_TO_RAD), 50 * sin(deg_list[min_index] * DEG_TO_RAD));

ofBeginShape();

ofVertex(location_list[i]);

ofBezierVertex(handle_1, handle_2, location_list[min_index]);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220215

2022年2月14日2022年2月14日

Happy valentine’s day. Draw by openFrameworks

[ Video ]

[ About ]
Happy valentine’s day

[ Source ]

#pragma once
#include "ofMain.h"

class Actor {
public:
	Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);
	void update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);
	glm::vec3 getLocation();
	glm::vec3 getPrevLocation();
	deque<glm::vec3> getLog();
	void setColor(ofColor color);
	ofColor getColor();
	float getNoiseSeed();

private:

	int select_index;
	int next_index;
	float noise_seed;

	glm::vec3 location;
	glm::vec3 prev_location;
	deque<glm::vec3> log;
	ofColor color;
};

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(float theta);

	vector<glm::vec3> location_list;
	vector<vector<int>> next_index_list;
	vector<int> destination_list;

	vector<unique_ptr<Actor>> actor_list;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);

void update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);

glm::vec3 getLocation();

glm::vec3 getPrevLocation();

deque<glm::vec3> getLog();

void setColor(ofColor color);

ofColor getColor();

float getNoiseSeed();

private:

int select_index;

int next_index;

float noise_seed;

glm::vec3 location;

glm::vec3 prev_location;

deque<glm::vec3> log;

ofColor color;

};

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(float theta);

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<int> destination_list;

vector<unique_ptr<Actor>> actor_list;

};

#include "ofApp.h"	

//--------------------------------------------------------------
Actor::Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

	this->select_index = ofRandom(location_list.size());
	while (true) {

		auto itr = find(destination_list.begin(), destination_list.end(), this->select_index);
		if (itr == destination_list.end()) {

			destination_list.push_back(this->select_index);
			break;
		}

		this->select_index = (this->select_index + 1) % location_list.size();
	}

	this->next_index = this->select_index;

	this->noise_seed = ofRandom(1000);
}

//--------------------------------------------------------------
void Actor::update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

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

		auto tmp_index = this->select_index;
		this->select_index = this->next_index;
		int retry = next_index_list[this->select_index].size();
		this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];
		while (--retry > 0) {

			auto destination_itr = find(destination_list.begin(), destination_list.end(), this->next_index);
			if (destination_itr == destination_list.end()) {

				if (tmp_index != this->next_index) {

					destination_list.push_back(this->next_index);
					break;
				}
			}

			this->next_index = next_index_list[this->select_index][(this->next_index + 1) % next_index_list[this->select_index].size()];
		}
		if (retry <= 0) {

			destination_list.push_back(this->select_index);
			this->next_index = this->select_index;
		}
	}

	auto param = ofGetFrameNum() % frame_span;
	auto distance = location_list[this->next_index] - location_list[this->select_index];
	if (this->next_index != this->select_index) {

		this->prev_location = this->location;
	}
	this->location = location_list[this->select_index] + distance / frame_span * param;

	this->log.push_front(this->location);
	while (this->log.size() > 20) { this->log.pop_back(); }
}

//--------------------------------------------------------------
glm::vec3 Actor::getLocation() {

	return this->location;
}

//--------------------------------------------------------------
glm::vec3 Actor::getPrevLocation() {

	return this->prev_location;
}

//--------------------------------------------------------------
deque<glm::vec3> Actor::getLog() {

	return this->log;
}

//--------------------------------------------------------------
void Actor::setColor(ofColor color) {

	this->color = color;
}

//--------------------------------------------------------------
ofColor Actor::getColor() {

	return this->color;
}

//--------------------------------------------------------------
float Actor::getNoiseSeed() {

	return this->noise_seed;
}

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetLineWidth(2);

	auto span = 40;
	for (int x = -280; x <= 280; x += span) {

		for (int y = -280; y <= 280; y += span) {

			this->location_list.push_back(glm::vec3(x, y, 0));
		}
	}

	auto param = span;
	for (auto& location : this->location_list) {

		vector<int> next_index = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= param) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	vector<ofColor> base_color_list;
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	for (int i = 0; i < 180; i++) {

		this->actor_list.push_back(make_unique<Actor>(this->location_list, this->next_index_list, this->destination_list));
		this->actor_list.back()->setColor(base_color_list[(int)ofRandom(base_color_list.size())]);
	}
}

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

	int frame_span = 10;
	int prev_index_size = 0;

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

		prev_index_size = this->destination_list.size();
	}

	for (auto& actor : this->actor_list) {

		actor->update(frame_span, this->location_list, this->next_index_list, this->destination_list);
	}

	if (prev_index_size != 0) {

		this->destination_list.erase(this->destination_list.begin(), this->destination_list.begin() + prev_index_size);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	for (auto& actor : this->actor_list) {

		ofPushMatrix();
		ofTranslate(actor->getLocation());

		float scale = 1.1;

		ofFill();
		ofSetColor(actor->getColor());
		ofBeginShape();
		for (auto deg = 0; deg < 360; deg += 1) {

			ofVertex(this->make_point(deg * DEG_TO_RAD) * scale);
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39);
		ofBeginShape();
		for (auto deg = 0; deg < 360; deg += 1) {

			ofVertex(this->make_point(deg * DEG_TO_RAD) * scale);
		}
		ofEndShape(true);

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
//Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec2 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec2(x, -y);
}


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

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

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#include "ofApp.h"

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

Actor::Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

this->select_index = ofRandom(location_list.size());

while (true) {

auto itr = find(destination_list.begin(), destination_list.end(), this->select_index);

if (itr == destination_list.end()) {

destination_list.push_back(this->select_index);

break;

}

this->select_index = (this->select_index + 1) % location_list.size();

}

this->next_index = this->select_index;

this->noise_seed = ofRandom(1000);

}

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

void Actor::update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

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

auto tmp_index = this->select_index;

this->select_index = this->next_index;

int retry = next_index_list[this->select_index].size();

this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];

while (--retry > 0) {

auto destination_itr = find(destination_list.begin(), destination_list.end(), this->next_index);

if (destination_itr == destination_list.end()) {

if (tmp_index != this->next_index) {

destination_list.push_back(this->next_index);

break;

}

this->next_index = next_index_list[this->select_index][(this->next_index + 1) % next_index_list[this->select_index].size()];

}

if (retry <= 0) {

destination_list.push_back(this->select_index);

this->next_index = this->select_index;

}

auto param = ofGetFrameNum() % frame_span;

auto distance = location_list[this->next_index] - location_list[this->select_index];

if (this->next_index != this->select_index) {

this->prev_location = this->location;

}

this->location = location_list[this->select_index] + distance / frame_span * param;

this->log.push_front(this->location);

while (this->log.size() > 20) { this->log.pop_back(); }

}

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

glm::vec3 Actor::getLocation() {

return this->location;

}

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

glm::vec3 Actor::getPrevLocation() {

return this->prev_location;

}

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

deque<glm::vec3> Actor::getLog() {

return this->log;

}

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

void Actor::setColor(ofColor color) {

this->color = color;

}

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

ofColor Actor::getColor() {

return this->color;

}

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

float Actor::getNoiseSeed() {

return this->noise_seed;

}

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(2);

auto span = 40;

for (int x = -280; x <= 280; x += span) {

for (int y = -280; y <= 280; y += span) {

this->location_list.push_back(glm::vec3(x, y, 0));

}

auto param = span;

for (auto& location : this->location_list) {

vector<int> next_index = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= param) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

vector<ofColor> base_color_list;

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

for (int i = 0; i < 180; i++) {

this->actor_list.push_back(make_unique<Actor>(this->location_list, this->next_index_list, this->destination_list));

this->actor_list.back()->setColor(base_color_list[(int)ofRandom(base_color_list.size())]);

}

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

void ofApp::update() {

int frame_span = 10;

int prev_index_size = 0;

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

prev_index_size = this->destination_list.size();

}

for (auto& actor : this->actor_list) {

actor->update(frame_span, this->location_list, this->next_index_list, this->destination_list);

}

if (prev_index_size != 0) {

this->destination_list.erase(this->destination_list.begin(), this->destination_list.begin() + prev_index_size);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (auto& actor : this->actor_list) {

ofPushMatrix();

ofTranslate(actor->getLocation());

float scale = 1.1;

ofFill();

ofSetColor(actor->getColor());

ofBeginShape();

for (auto deg = 0; deg < 360; deg += 1) {

ofVertex(this->make_point(deg * DEG_TO_RAD) * scale);

}

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

for (auto deg = 0; deg < 360; deg += 1) {

ofVertex(this->make_point(deg * DEG_TO_RAD) * scale);

}

ofEndShape(true);

ofPopMatrix();

}

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

//Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec2 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec2(x, -y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220214

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