2020年4月 – ページ 10 – プログラミング de 落描き

2020年4月3日2020年4月3日

Random walker 3D. openFrameworks

[ Video ]

[ About ]
deconbatch blog
https://note.com/deconbatch/n/na13107826c9c

deconbatch さんのブログに面白そうなランダムウォーカーの作例があったので、挑戦してみました。
3D座標を移動しますが、それぞれが重ならないように工夫しました。

I found an interesting example of a random walker on deconbatch’s blog, so I challenged it.
The 3D coordinates are moved so that they do not overlap each other.

[ 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) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

	ofEasyCam cam;
	ofMesh face, frame;

	vector<glm::vec3> location_list;
	vector<int> param_list;
	vector<vector<int>> route_info_list;

	vector<int> index_list;
};

#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) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

ofEasyCam cam;

ofMesh face, frame;

vector<glm::vec3> location_list;

vector<int> param_list;

vector<vector<int>> route_info_list;

vector<int> index_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	int span = 20;
	for (int x = -220; x <= 220; x += span) {

		for (int y = -220; y <= 220; y += span) {

			for (int z = -220; z <= 220; z += span) {

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

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

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

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

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

				route_info.push_back(index);
			}
		}

		this->route_info_list.push_back(route_info);
	}

	for (int i = 0; i < 15; i++) {
	
		this->index_list.push_back((int)ofRandom(this->location_list.size()));
	}
}

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

	this->face.clear();
	this->frame.clear();

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

		int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];
		for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

			if (this->param_list[next_index] <= 0) {

				this->param_list[next_index] = 30;
				this->index_list[i] = next_index;
				break;
			}
		}
	}
	
	for (int i = 0; i < this->location_list.size(); i++) {
	
		if (this->param_list[i] > 0) {
		
			this->setBoxToMesh(this->face, this->frame, this->location_list[i], 20);
		}

		if (this->param_list[i] > 0) { this->param_list[i] -= 1; }
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	ofSetColor(39);
	this->face.draw();

	ofSetColor(239);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

	int face_index = face_target.getNumVertices();
	int frame_index = frame_target.getNumVertices();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

	face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
	face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1);

	face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);
	face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2);

	face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

	frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 4);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 7);
}

//--------------------------------------------------------------
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(239);

ofEnableDepthTest();

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int span = 20;

for (int x = -220; x <= 220; x += span) {

for (int y = -220; y <= 220; y += span) {

for (int z = -220; z <= 220; z += span) {

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

this->param_list.push_back(0);

}

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

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

int index = -1;

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

index++;

if (location == other) { continue; }

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

if (distance <= span) {

route_info.push_back(index);

}

this->route_info_list.push_back(route_info);

}

for (int i = 0; i < 15; i++) {

this->index_list.push_back((int)ofRandom(this->location_list.size()));

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

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

int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];

for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

if (this->param_list[next_index] <= 0) {

this->param_list[next_index] = 30;

this->index_list[i] = next_index;

break;

}

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

if (this->param_list[i] > 0) {

this->setBoxToMesh(this->face, this->frame, this->location_list[i], 20);

}

if (this->param_list[i] > 0) { this->param_list[i] -= 1; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

int face_index = face_target.getNumVertices();

int frame_index = frame_target.getNumVertices();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);

frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);

frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 4);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 6);

frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 7);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200403

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2020年4月2日2020年4月2日

Keep language as a pets. openFrameworks

[ Video ]

[ About ]
私は好きな言葉をケージに入れて飼育します。

I keep my favorite words in a cage.

[ 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) {};

	ofEasyCam cam;

	float font_size;
	ofTrueTypeFont font;
};

#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) {};

ofEasyCam cam;

float font_size;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->font_size = 18;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateY(ofGetFrameNum());

	vector<glm::vec3> location_list;
	for (int x = -200; x <= 200; x += 200) {

		for (int y = -200; y <= 200; y += 200) {

			for (int z = -200; z <= 200; z += 200) {

				location_list.push_back(glm::vec3(x, y, z));
			}
		}
	}

	vector<string> word_list = {
		"Hip", "Godzilla", "Meat",
		"Sun", "Cake", "Whisky",
		"Microsoft", "Sony", "C#",

		"Happy", "Leg", "Love",
		"Cute", "oF", "Jump",
		"Cat", "Japan", "Game",

		"C++", "FF14", "Walk",
		"Programming", "Dog", "Hentai",
		"PC", "Run", "Sake",
	};

	int sample_count = 50;
	int word_index = 0;
	for (auto& location : location_list) {

		ofPushMatrix();
		ofTranslate(location);

		auto word = word_list[word_index++];
		auto noise_param = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

		auto word_size = this->font.getStringBoundingBox(word, 0, 0);
		vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);
		for (int word_index = 0; word_index < word_path.size(); word_index++) {

			vector<ofPolyline> outline = word_path[word_index].getOutline();

			ofFill();
			ofSetColor(39);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto noise_location = glm::vec3(
						ofMap(ofNoise(noise_param.x, vertex.x * 0.008 - ofGetFrameNum() * 0.02), 0, 1, -100, 100),
						ofMap(ofNoise(noise_param.y, vertex.x * 0.008 - ofGetFrameNum() * 0.02), 0, 1, -100, 100),
						ofMap(ofNoise(noise_param.z, vertex.x * 0.008 - ofGetFrameNum() * 0.01), 0, 1, -100, 100));

					ofVertex(noise_location + vertex - glm::vec3(word_size.getWidth() * 0.5, -word_size.getHeight() * 0.5, 0));
				}
			}
			ofEndShape();
		}

		ofNoFill();
		ofSetColor(139);
		ofDrawBox(200);

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

this->font_size = 18;

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

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateY(ofGetFrameNum());

vector<glm::vec3> location_list;

for (int x = -200; x <= 200; x += 200) {

for (int y = -200; y <= 200; y += 200) {

for (int z = -200; z <= 200; z += 200) {

location_list.push_back(glm::vec3(x, y, z));

}

vector<string> word_list = {

"Hip", "Godzilla", "Meat",

"Sun", "Cake", "Whisky",

"Microsoft", "Sony", "C#",

"Happy", "Leg", "Love",

"Cute", "oF", "Jump",

"Cat", "Japan", "Game",

"C++", "FF14", "Walk",

"Programming", "Dog", "Hentai",

"PC", "Run", "Sake",

};

int sample_count = 50;

int word_index = 0;

for (auto& location : location_list) {

ofPushMatrix();

ofTranslate(location);

auto word = word_list[word_index++];

auto noise_param = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto word_size = this->font.getStringBoundingBox(word, 0, 0);

vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);

for (int word_index = 0; word_index < word_path.size(); word_index++) {

vector<ofPolyline> outline = word_path[word_index].getOutline();

ofFill();

ofSetColor(39);

ofBeginShape();

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

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto noise_location = glm::vec3(

ofMap(ofNoise(noise_param.x, vertex.x * 0.008 - ofGetFrameNum() * 0.02), 0, 1, -100, 100),

ofMap(ofNoise(noise_param.y, vertex.x * 0.008 - ofGetFrameNum() * 0.02), 0, 1, -100, 100),

ofMap(ofNoise(noise_param.z, vertex.x * 0.008 - ofGetFrameNum() * 0.01), 0, 1, -100, 100));

ofVertex(noise_location + vertex - glm::vec3(word_size.getWidth() * 0.5, -word_size.getHeight() * 0.5, 0));

}

ofEndShape();

}

ofNoFill();

ofSetColor(139);

ofDrawBox(200);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200402

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2020年4月1日2020年4月1日

Proliferating Mover. openFrameworks

[ Video ]

[ About ]
近づくと線を引く Mover は一定の確率で分裂して増えます。
ただし、異常増殖を防止する機能を備えています。

The Mover that draws a line as it gets closer will split up and increase with a certain probability.
However, it does have the ability to prevent abnormal growth.

[ Source ]

#pragma once
#include "ofMain.h"
#include "Mover.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<Mover>> mover_list;
};

#pragma once

#include "ofMain.h"

#include "Mover.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<Mover>> mover_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);

	auto m = make_unique<Mover>(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5));
	this->mover_list.push_back(move(m));
}

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

	// 数によって分割する確率を変化させる
	int separation_rate = ofMap(this->mover_list.size(), 1, 30, 100, 0);

	// 更新
	for (auto& mover : this->mover_list) {

		mover->update(separation_rate);
	}

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

		if(this->mover_list[i]->isSeparation()){

			auto m = make_unique<Mover>(this->mover_list[i]->getLocation());
			this->mover_list.push_back(move(m));
		}
	}

	// 削除
	for (int i = this->mover_list.size() - 1; i >= 0; i--) {

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

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

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

	for (auto& mover : this->mover_list) {

		mover->draw(this->mover_list);
	}
}

//--------------------------------------------------------------
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(2);

auto m = make_unique<Mover>(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5));

this->mover_list.push_back(move(m));

}

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

void ofApp::update() {

// 数によって分割する確率を変化させる

int separation_rate = ofMap(this->mover_list.size(), 1, 30, 100, 0);

// 更新

for (auto& mover : this->mover_list) {

mover->update(separation_rate);

}

// 分割

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

if(this->mover_list[i]->isSeparation()){

auto m = make_unique<Mover>(this->mover_list[i]->getLocation());

this->mover_list.push_back(move(m));

}

// 削除

for (int i = this->mover_list.size() - 1; i >= 0; i--) {

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

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

}

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

void ofApp::draw() {

for (auto& mover : this->mover_list) {

mover->draw(this->mover_list);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Mover {
public:

	Mover(glm::vec2 start);
	glm::vec2 think();
	void update(int separation_rate);
	void draw(vector<unique_ptr<Mover>>& mover_list);
	glm::vec2 getLocation();
	bool isDead();
	bool isSeparation();

private:

	int motion_cycle = 60;
	unsigned int count = 0;
	glm::vec2 start;
	glm::vec2 next;
	vector<glm::vec2> log_list;
	bool dead = false;
	bool separation = false;
};

#pragma once

#include "ofMain.h"

class Mover {

public:

Mover(glm::vec2 start);

glm::vec2 think();

void update(int separation_rate);

void draw(vector<unique_ptr<Mover>>& mover_list);

glm::vec2 getLocation();

bool isDead();

bool isSeparation();

private:

int motion_cycle = 60;

unsigned int count = 0;

glm::vec2 start;

glm::vec2 next;

vector<glm::vec2> log_list;

bool dead = false;

bool separation = false;

};

#include "Mover.h"

//--------------------------------------------------------------
Mover::Mover(glm::vec2 start) {

	this->start = start;
	this->next = this->think();
	log_list.push_back(this->start);
}

//--------------------------------------------------------------
void Mover::update(int separation_rate) {

	// 分離判定用のフラグ
	this->separation = false;

	// 次の場所を探す
	int param = ofGetFrameNum() % this->motion_cycle;
	if (param == 0) {

		if (this->count > 0) {
		
			this->start = this->next;
			this->next = this->think();
		}

		// 動きの節目のタイミングで分離有無を判定判定
		this->separation = ofRandom(100) < separation_rate;
	}
	
	// 静 / 動の制御
	if(param > this->motion_cycle * 0.55) {

		auto location = this->start + ((this->next - this->start) / this->motion_cycle) * ofMap(param, this->motion_cycle * 0.55, this->motion_cycle - 1, 0, this->motion_cycle);
		this->log_list.push_back(location);
	}
	else {

		this->log_list.push_back(this->log_list.back());
	}

	// 画面外に出た Mover は削除対象
	if (this->log_list.back().x < 0 || this->log_list.back().x > ofGetWidth() || this->log_list.back().y < 0 || this->log_list.back().y > ofGetHeight()) {
		
		this->dead = true;
	}

	// 軌跡表示用に5フレーム分だけ保存
	while (this->log_list.size() > 5) {

		this->log_list.erase(this->log_list.begin());
	}

	this->count++;
}

//--------------------------------------------------------------
void Mover::draw(vector<unique_ptr<Mover>>& mover_list) {

	// 近くにいたら線を引く
	ofFill();
	bool draw_line = false;
	for (auto& other : mover_list) {

		if (this->log_list.back() == other->getLocation()) { continue; }
		if (glm::distance(this->log_list.back(), other->getLocation()) < 100) {

			ofDrawLine(this->log_list.back(), other->getLocation());
			draw_line = true;
		}
	}

	// 線の基点となる円
	if (draw_line) { ofDrawCircle(this->log_list.back(), 5); }

	// 自身の場所を示す円
	ofNoFill();
	for (int i = 0; i < this->log_list.size(); i++) {

		ofSetColor(ofMap(i, 0, this->log_list.size() - 1, 200, 39));
		ofDrawCircle(this->log_list[i], 15);
	}
}

//--------------------------------------------------------------
glm::vec2 Mover::think() {

	int radius = 175;
	int deg = ofRandom(360);
	auto tmp_next = this->start + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
	return tmp_next;
}

//--------------------------------------------------------------
glm::vec2 Mover::getLocation() {
	
	return this->log_list.back();
}

//--------------------------------------------------------------
bool Mover::isDead() {

	return this->dead;
}

//--------------------------------------------------------------
bool Mover::isSeparation() {

	return this->separation;
}

100

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110

#include "Mover.h"

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

Mover::Mover(glm::vec2 start) {

this->start = start;

this->next = this->think();

log_list.push_back(this->start);

}

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

void Mover::update(int separation_rate) {

// 分離判定用のフラグ

this->separation = false;

// 次の場所を探す

int param = ofGetFrameNum() % this->motion_cycle;

if (param == 0) {

if (this->count > 0) {

this->start = this->next;

this->next = this->think();

}

// 動きの節目のタイミングで分離有無を判定判定

this->separation = ofRandom(100) < separation_rate;

}

// 静 / 動の制御

if(param > this->motion_cycle * 0.55) {

auto location = this->start + ((this->next - this->start) / this->motion_cycle) * ofMap(param, this->motion_cycle * 0.55, this->motion_cycle - 1, 0, this->motion_cycle);

this->log_list.push_back(location);

}

else {

this->log_list.push_back(this->log_list.back());

}

// 画面外に出た Mover は削除対象

if (this->log_list.back().x < 0 || this->log_list.back().x > ofGetWidth() || this->log_list.back().y < 0 || this->log_list.back().y > ofGetHeight()) {

this->dead = true;

}

// 軌跡表示用に5フレーム分だけ保存

while (this->log_list.size() > 5) {

this->log_list.erase(this->log_list.begin());

}

this->count++;

}

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

void Mover::draw(vector<unique_ptr<Mover>>& mover_list) {

// 近くにいたら線を引く

ofFill();

bool draw_line = false;

for (auto& other : mover_list) {

if (this->log_list.back() == other->getLocation()) { continue; }

if (glm::distance(this->log_list.back(), other->getLocation()) < 100) {

ofDrawLine(this->log_list.back(), other->getLocation());

draw_line = true;

}

// 線の基点となる円

if (draw_line) { ofDrawCircle(this->log_list.back(), 5); }

// 自身の場所を示す円

ofNoFill();

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

ofSetColor(ofMap(i, 0, this->log_list.size() - 1, 200, 39));

ofDrawCircle(this->log_list[i], 15);

}

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

glm::vec2 Mover::think() {

int radius = 175;

int deg = ofRandom(360);

auto tmp_next = this->start + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

return tmp_next;

}

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

glm::vec2 Mover::getLocation() {

return this->log_list.back();

}

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

bool Mover::isDead() {

return this->dead;

}

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

bool Mover::isSeparation() {

return this->separation;

}

[ Link ]
https://github.com/junkiyoshi/Insta20200401

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2020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
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