プログラミング de 落描き – ページ 116 – クリエイティブ・コーディングによる生成物とソース

2024年11月19日

Flow of section.

[ Video ]

[ About ]
区間移動。

[ 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) {};

	vector<glm::vec2> location_list;
	vector<int> life_list;
	vector<ofColor> color_list;

	float noise_value;
};

#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) {};

vector<glm::vec2> location_list;

vector<int> life_list;

vector<ofColor> color_list;

float noise_value;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	if (ofGetFrameNum() % 50 < 15) {

		this->noise_value += ofMap(ofGetFrameNum() % 50, 0, 15, 5, 0);
	}

	ofColor color;
	for (int i = 0; i < 300; i++) {

		this->location_list.push_back(glm::vec2(ofRandom(-320, 320), ofRandom(-320, 320)));
		this->life_list.push_back(0);
		color.setHsb(ofMap(this->location_list.back().x, -320, 320, 0, 255), 200, 255);
		this->color_list.push_back(color);
	}

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

		if (this->life_list[i] > 50 || (abs(this->location_list[i].x) > 420 || abs(this->location_list[i].y) > 420)) {

			this->location_list.erase(this->location_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

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

		auto noise_location = glm::vec2(((int)this->location_list[i].x / 60) * 60, ((int)this->location_list[i].y / 60) * 60);
		auto deg = ofMap(ofNoise(noise_location.x * 0.0025, noise_location.y * 0.0025, this->noise_value), 0, 1, -360, 360);
		auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));
		this->location_list[i] = next;
		this->life_list[i] += 1;
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		auto alpha = this->life_list[i] > 30 ? ofMap(this->life_list[i], 30, 50, 255, 0) : 255;
		ofSetColor(this->color_list[i], alpha);
		auto size = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 10, 0, 2) : 2;
		ofDrawCircle(this->location_list[i], size);
	}

	/*
	int start = 75;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 50 < 15) {

this->noise_value += ofMap(ofGetFrameNum() % 50, 0, 15, 5, 0);

}

ofColor color;

for (int i = 0; i < 300; i++) {

this->location_list.push_back(glm::vec2(ofRandom(-320, 320), ofRandom(-320, 320)));

this->life_list.push_back(0);

color.setHsb(ofMap(this->location_list.back().x, -320, 320, 0, 255), 200, 255);

this->color_list.push_back(color);

}

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

if (this->life_list[i] > 50 || (abs(this->location_list[i].x) > 420 || abs(this->location_list[i].y) > 420)) {

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

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

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

}

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

auto noise_location = glm::vec2(((int)this->location_list[i].x / 60) * 60, ((int)this->location_list[i].y / 60) * 60);

auto deg = ofMap(ofNoise(noise_location.x * 0.0025, noise_location.y * 0.0025, this->noise_value), 0, 1, -360, 360);

auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));

this->location_list[i] = next;

this->life_list[i] += 1;

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

auto alpha = this->life_list[i] > 30 ? ofMap(this->life_list[i], 30, 50, 255, 0) : 255;

ofSetColor(this->color_list[i], alpha);

auto size = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 10, 0, 2) : 2;

ofDrawCircle(this->location_list[i], size);

}

int start = 75;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20241119

2024年11月18日

Noise walk.

[ Video ]

[ About ]
ノイズ・ウォーク。

[ 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) {};

	vector<glm::vec2> location_list;
	vector<int> life_list;
	vector<ofColor> color_list;

	float noise_value;
};

#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) {};

vector<glm::vec2> location_list;

vector<int> life_list;

vector<ofColor> color_list;

float noise_value;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
}

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

	if (ofGetFrameNum() % 50 < 10) {

		this->noise_value += ofMap(ofGetFrameNum() % 50, 0, 10, 5, 0);
	}

	ofColor color;
	for (int i = 0; i < 500; i++) {

		auto radius = ofRandom(250);
		auto deg = ofRandom(360);

		this->location_list.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
		this->life_list.push_back(0);
		color.setHsb(ofMap(deg, 0, 360, 0, 255), 255, 255);
		this->color_list.push_back(color);
	}

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

		if (this->life_list[i] > 50 || (abs(this->location_list[i].x) > 420 || abs(this->location_list[i].y) > 420)) {

			this->location_list.erase(this->location_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

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

		auto deg = ofMap(ofNoise(this->location_list[i].x * 0.015, this->location_list[i].y * 0.015, this->noise_value), 0, 1, -360, 360);
		auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));
		this->location_list[i] = next;
		this->life_list[i] += 1;
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		auto alpha = this->life_list[i] > 30 ? ofMap(this->life_list[i], 30, 50, 255, 0) : 255;
		ofSetColor(this->color_list[i], alpha);
		auto size = this->life_list[i] < 20 ? ofMap(this->life_list[i], 0, 20, 0, 4) : 4;
		ofDrawCircle(this->location_list[i], size);
	}

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

		auto alpha = this->life_list[i] > 30 ? ofMap(this->life_list[i], 30, 50, 255, 0) : 255;
		ofSetColor(0, alpha);
		auto size = this->life_list[i] < 20 ? ofMap(this->life_list[i], 0, 20, 0, 4) : 4;
		ofDrawCircle(this->location_list[i], size * 0.4);
	}

	/*
	int start = 60;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 50 < 10) {

this->noise_value += ofMap(ofGetFrameNum() % 50, 0, 10, 5, 0);

}

ofColor color;

for (int i = 0; i < 500; i++) {

auto radius = ofRandom(250);

auto deg = ofRandom(360);

this->location_list.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

this->life_list.push_back(0);

color.setHsb(ofMap(deg, 0, 360, 0, 255), 255, 255);

this->color_list.push_back(color);

}

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

if (this->life_list[i] > 50 || (abs(this->location_list[i].x) > 420 || abs(this->location_list[i].y) > 420)) {

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

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

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

}

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

auto deg = ofMap(ofNoise(this->location_list[i].x * 0.015, this->location_list[i].y * 0.015, this->noise_value), 0, 1, -360, 360);

auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));

this->location_list[i] = next;

this->life_list[i] += 1;

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

auto alpha = this->life_list[i] > 30 ? ofMap(this->life_list[i], 30, 50, 255, 0) : 255;

ofSetColor(this->color_list[i], alpha);

auto size = this->life_list[i] < 20 ? ofMap(this->life_list[i], 0, 20, 0, 4) : 4;

ofDrawCircle(this->location_list[i], size);

}

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

auto alpha = this->life_list[i] > 30 ? ofMap(this->life_list[i], 30, 50, 255, 0) : 255;

ofSetColor(0, alpha);

auto size = this->life_list[i] < 20 ? ofMap(this->life_list[i], 0, 20, 0, 4) : 4;

ofDrawCircle(this->location_list[i], size * 0.4);

}

int start = 60;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20241118

2024年11月17日

White when moving.

[ Video ]

[ About ]
動くときは白い。

[ 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);
	void draw();
	glm::vec3 getLocation();
	deque<glm::vec3> getLog();
	void setColor(ofColor color);
	ofColor getColor();

private:

	int select_index;
	int next_index;

	glm::vec3 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 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

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

	vector<unique_ptr<Actor>> actor_list;

	ofEasyCam cam;
};

#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);

void draw();

glm::vec3 getLocation();

deque<glm::vec3> getLog();

void setColor(ofColor color);

ofColor getColor();

private:

int select_index;

int next_index;

glm::vec3 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 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) {};

glm::vec3 make_point(float R, float r, float u, float v);

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<int> destination_list;

vector<unique_ptr<Actor>> actor_list;

ofEasyCam cam;

};

#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;
}

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

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

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

	bool flag = true;
	auto tmp = this->log[0];
	for (auto& l : this->log) {

		if (tmp != l) {

			flag = false;
		}
	}

	auto p = ofGetFrameNum() % 20;
	auto v_1 = p < 10 ? ofMap(p, 0, 10, 0, 255) : ofMap(p, 10, 20, 255, 0);
	auto v_2 = p < 10 ? ofMap(p, 0, 10, 255, 0) : ofMap(p, 10, 20, 0, 255);

	ofFill();
	flag == false ? ofSetColor(v_1) : ofSetColor(0);
	ofDrawBox(this->location, 25);

	ofNoFill();
	flag == false ? ofSetColor(v_2) : ofSetColor(255);
	ofDrawBox(this->location, 25);
}

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

	return this->location;
}

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

	return this->log;
}

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

	this->color = color;
}

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

	return this->color;
}

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofEnableDepthTest();

	int span = 30;
	for (int x = -180; x <= 180; x += span) {

		for (int y = -180; y <= 180; y += span) {

			for (int z = -180; z <= 180; z += span) {

				bool x_flag = x < -100 || x > 100;
				bool y_flag = y < -100 || y > 100;
				bool z_flag = z < -100 || z > 100;

				if (((x_flag || y_flag) && z_flag) || ((y_flag || z_flag) && x_flag)) {

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

	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 <= 30) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	ofColor color;
	for (int i = 0; i < 880; i++) {

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

		color.setHsb(ofMap(i, 0, 850, 155, 255), 200, 255);
		this->actor_list.back()->setColor(color);
	}
}

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

	int frame_span = 20;
	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() {

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.72);
	ofRotateY(ofGetFrameNum() * 1.44);

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

		actor->draw();
	}

	this->cam.end();

	/*
	int start = 500;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}


//--------------------------------------------------------------
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;

}

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

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];

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

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

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

}

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

void Actor::draw() {

bool flag = true;

auto tmp = this->log[0];

for (auto& l : this->log) {

if (tmp != l) {

flag = false;

}

auto p = ofGetFrameNum() % 20;

auto v_1 = p < 10 ? ofMap(p, 0, 10, 0, 255) : ofMap(p, 10, 20, 255, 0);

auto v_2 = p < 10 ? ofMap(p, 0, 10, 255, 0) : ofMap(p, 10, 20, 0, 255);

ofFill();

flag == false ? ofSetColor(v_1) : ofSetColor(0);

ofDrawBox(this->location, 25);

ofNoFill();

flag == false ? ofSetColor(v_2) : ofSetColor(255);

ofDrawBox(this->location, 25);

}

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

glm::vec3 Actor::getLocation() {

return this->location;

}

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

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

return this->log;

}

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

void Actor::setColor(ofColor color) {

this->color = color;

}

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

ofColor Actor::getColor() {

return this->color;

}

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableDepthTest();

int span = 30;

for (int x = -180; x <= 180; x += span) {

for (int y = -180; y <= 180; y += span) {

for (int z = -180; z <= 180; z += span) {

bool x_flag = x < -100 || x > 100;

bool y_flag = y < -100 || y > 100;

bool z_flag = z < -100 || z > 100;

if (((x_flag || y_flag) && z_flag) || ((y_flag || z_flag) && x_flag)) {

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

}

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 <= 30) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

ofColor color;

for (int i = 0; i < 880; i++) {

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

color.setHsb(ofMap(i, 0, 850, 155, 255), 200, 255);

this->actor_list.back()->setColor(color);

}

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

void ofApp::update() {

int frame_span = 20;

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() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.72);

ofRotateY(ofGetFrameNum() * 1.44);

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

actor->draw();

}

this->cam.end();

int start = 500;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20241117

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