プログラミング de 落描き – ページ 4 – クリエイティブ・コーディングによる生成物とソース

2025年10月15日

Twin Spirals.

[ Video ]

[ About ]
双子の螺旋。

[ 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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end);

	ofEasyCam cam;
	ofMesh face, frame;
};

#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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	for (int z = -600; z <= 600; z += 20) {

		for (int radius = 150; radius <= 300; radius += 150) {

			int deg_start = radius == 150 ? ofGetFrameNum() * 2.88 + z + 600 : ofGetFrameNum() * 2.88 + z + 600 + 180;
			int deg_end = deg_start + 90;

			this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, z), radius, 5, 15, deg_start, deg_end);
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);

	ofSetColor(239);
	this->face.draw();

	ofSetColor(39);
	this->frame.drawWireframe();

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 500;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::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);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end) {

	if (deg_start == deg_end) { return; }

	int index = face_target.getNumVertices();

	for (int deg = deg_start; deg <= deg_end; deg += 1) {

		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			vertex += location;
		}

		face_target.addVertices(vertices);

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

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

		auto frame_index = frame_target.getNumVertices();

		frame_target.addVertices(vertices);

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

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

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

	index = frame_target.getNumVertices() - 8;

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

	frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 5);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int z = -600; z <= 600; z += 20) {

for (int radius = 150; radius <= 300; radius += 150) {

int deg_start = radius == 150 ? ofGetFrameNum() * 2.88 + z + 600 : ofGetFrameNum() * 2.88 + z + 600 + 180;

int deg_end = deg_start + 90;

this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, z), radius, 5, 15, deg_start, deg_end);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofSetColor(239);

this->face.draw();

ofSetColor(39);

this->frame.drawWireframe();

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 500;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::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);

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end) {

if (deg_start == deg_end) { return; }

int index = face_target.getNumVertices();

for (int deg = deg_start; deg <= deg_end; deg += 1) {

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

for (auto& vertex : vertices) {

vertex += location;

}

face_target.addVertices(vertices);

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 + 5);

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

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

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

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

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

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

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

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

}

face_target.addIndex(index + 0); face_target.addIndex(index + 3); face_target.addIndex(index + 7);

face_target.addIndex(index + 0); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

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

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

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

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

index = frame_target.getNumVertices() - 8;

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

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

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

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

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

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/8ba79a617a28d67e3d334e0766dc2c44fa08ad4a

2025年10月14日

Colored Random Walk Group.

[ Video ]

[ About ]
色付きランダムウォーク集団。

[ 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 getLocation(int i);
	vector<glm::vec3> getLog();
	void setColor(ofColor color);
	ofColor getColor();

private:

	int select_index;
	int next_index;

	glm::vec3 location;
	vector<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) {};

	vector<glm::vec3> parent_location_group;
	vector<vector<int>> parent_next_index_group;
	vector<int> parent_destination_group;
	vector<std::unique_ptr<Actor>> parent_actor_group;

	vector<vector<glm::vec3>> location_group_list;
	vector<vector<vector<int>>> next_index_group_list;
	vector<vector<int>> destination_group_list;
	vector<vector<std::unique_ptr<Actor>>> actor_group_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);

glm::vec3 getLocation();

glm::vec3 getLocation(int i);

vector<glm::vec3> getLog();

void setColor(ofColor color);

ofColor getColor();

private:

int select_index;

int next_index;

glm::vec3 location;

vector<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) {};

vector<glm::vec3> parent_location_group;

vector<vector<int>> parent_next_index_group;

vector<int> parent_destination_group;

vector<std::unique_ptr<Actor>> parent_actor_group;

vector<vector<glm::vec3>> location_group_list;

vector<vector<vector<int>>> next_index_group_list;

vector<vector<int>> destination_group_list;

vector<vector<std::unique_ptr<Actor>>> actor_group_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_back(this->location);
	while (this->log.size() > 50) { this->log.erase(this->log.begin()); }
}

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

	return this->location;
}

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

	return i > 0 && i < this->log.size() ? this->log[i] : glm::vec3();
}

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

	return this->log;
}

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

	this->color = value;
}

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

	return this->color;
}

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

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

	ofBackground(39);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofNoFill();
	
	vector<ofColor> base_color_list;
	ofColor color;
	for (int i = 0; i < 6; i++) {

		color.setHsb(ofMap(i, 0, 6, 0, 255), 255, 255);
		base_color_list.push_back(color);
	}

	int span = 180;
	for (int x = -span * 1; x <= span * 1; x += span * 2) {

		for (int y = -span * 1; y <= span * 1; y += span * 2) {

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

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

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

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

			float distance = glm::distance(location, other);
			if (distance <= span * 2) {

				next_index.push_back(index);
			}
		}
		this->parent_next_index_group.push_back(next_index);
	}

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

		this->parent_actor_group.push_back(make_unique<Actor>(this->parent_location_group, this->parent_next_index_group, this->parent_destination_group));
		this->parent_actor_group.back()->setColor(base_color_list[i % base_color_list.size()]);
	}

	span = 20;
	for (int g = 0; g < this->parent_actor_group.size(); g++) {

		vector<glm::vec3> location_group;
		for (int x = -span * 6; x <= span * 6; x += span) {

			for (int y = -span * 6; y <= span * 6; y += span) {

				location_group.push_back(glm::vec3(x, y, 0));
			}
		}

		location_group_list.push_back(location_group);

		vector<vector<int>> next_index_group;
		for (auto& location : location_group) {

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

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

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

					next_index.push_back(index);
				}
			}

			next_index_group.push_back(next_index);
		}
		this->next_index_group_list.push_back(next_index_group);


		vector<std::unique_ptr<Actor>> actor_group;
		vector<int> destination_group;
		ofColor color;
		for (int i = 0; i < 6; i++) {

			auto a = make_unique<Actor>(location_group, next_index_group, destination_group);
			actor_group.push_back(move(a));
			actor_group.back()->setColor(base_color_list[i % base_color_list.size()]);
		}

		this->actor_group_list.push_back(move(actor_group));
		this->destination_group_list.push_back(destination_group);
	}
}

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

	int frame_span = 2;
	int prev_index_size = 0;

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

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

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

		actor->update(frame_span, this->parent_location_group, this->parent_next_index_group, this->parent_destination_group);
	}

	if (prev_index_size != 0) {

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

	for (int g = 0; g < this->parent_actor_group.size(); g++) {

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

			prev_index_size = this->destination_group_list[g].size();
		}

		for (auto& actor : this->actor_group_list[g]) {

			actor->update(frame_span, this->location_group_list[g], this->next_index_group_list[g], this->destination_group_list[g]);
		}

		if (prev_index_size != 0) {

			this->destination_group_list[g].erase(this->destination_group_list[g].begin(), this->destination_group_list[g].begin() + prev_index_size);
		}
	}
}

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

	this->cam.begin();

	for (int g = 0; g < this->parent_actor_group.size(); g++) {

		ofSetLineWidth(0.5);
		ofSetColor(255);
		ofDrawRectangle(this->parent_actor_group[g]->getLocation(), 300, 300);

		for (auto& actor : this->actor_group_list[g]) {

			for (int i = 0; i < actor->getLog().size() - 1; i++) {

				auto loc_1 = actor->getLog()[i] + this->parent_actor_group[g]->getLog()[i];
				auto loc_2 = actor->getLog()[i + 1] + this->parent_actor_group[g]->getLog()[i + 1];

				ofSetColor(ofColor(actor->getColor(), ofMap(i, 0, actor->getLog().size(), 0, 255)));
				ofSetLineWidth(ofMap(i, 0, actor->getLog().size(), 0, 2));
				ofDrawLine(loc_1, loc_2);
			}
		}
	}

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 500;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::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());
}

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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_back(this->location);

while (this->log.size() > 50) { this->log.erase(this->log.begin()); }

}

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

glm::vec3 Actor::getLocation() {

return this->location;

}

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

glm::vec3 Actor::getLocation(int i) {

return i > 0 && i < this->log.size() ? this->log[i] : glm::vec3();

}

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

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

return this->log;

}

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

void Actor::setColor(ofColor value) {

this->color = value;

}

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

ofColor Actor::getColor() {

return this->color;

}

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

vector<ofColor> base_color_list;

ofColor color;

for (int i = 0; i < 6; i++) {

color.setHsb(ofMap(i, 0, 6, 0, 255), 255, 255);

base_color_list.push_back(color);

}

int span = 180;

for (int x = -span * 1; x <= span * 1; x += span * 2) {

for (int y = -span * 1; y <= span * 1; y += span * 2) {

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

}

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

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

int index = -1;

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

index++;

if (location == other) { continue; }

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

if (distance <= span * 2) {

next_index.push_back(index);

}

this->parent_next_index_group.push_back(next_index);

}

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

this->parent_actor_group.push_back(make_unique<Actor>(this->parent_location_group, this->parent_next_index_group, this->parent_destination_group));

this->parent_actor_group.back()->setColor(base_color_list[i % base_color_list.size()]);

}

span = 20;

for (int g = 0; g < this->parent_actor_group.size(); g++) {

vector<glm::vec3> location_group;

for (int x = -span * 6; x <= span * 6; x += span) {

for (int y = -span * 6; y <= span * 6; y += span) {

location_group.push_back(glm::vec3(x, y, 0));

}

location_group_list.push_back(location_group);

vector<vector<int>> next_index_group;

for (auto& location : location_group) {

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

int index = -1;

for (auto& other : location_group) {

index++;

if (location == other) { continue; }

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

if (distance <= span) {

next_index.push_back(index);

}

next_index_group.push_back(next_index);

}

this->next_index_group_list.push_back(next_index_group);

vector<std::unique_ptr<Actor>> actor_group;

vector<int> destination_group;

ofColor color;

for (int i = 0; i < 6; i++) {

auto a = make_unique<Actor>(location_group, next_index_group, destination_group);

actor_group.push_back(move(a));

actor_group.back()->setColor(base_color_list[i % base_color_list.size()]);

}

this->actor_group_list.push_back(move(actor_group));

this->destination_group_list.push_back(destination_group);

}

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

void ofApp::update() {

int frame_span = 2;

int prev_index_size = 0;

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

prev_index_size = this->parent_destination_group.size();

}

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

actor->update(frame_span, this->parent_location_group, this->parent_next_index_group, this->parent_destination_group);

}

if (prev_index_size != 0) {

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

}

for (int g = 0; g < this->parent_actor_group.size(); g++) {

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

prev_index_size = this->destination_group_list[g].size();

}

for (auto& actor : this->actor_group_list[g]) {

actor->update(frame_span, this->location_group_list[g], this->next_index_group_list[g], this->destination_group_list[g]);

}

if (prev_index_size != 0) {

this->destination_group_list[g].erase(this->destination_group_list[g].begin(), this->destination_group_list[g].begin() + prev_index_size);

}

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

void ofApp::draw() {

this->cam.begin();

for (int g = 0; g < this->parent_actor_group.size(); g++) {

ofSetLineWidth(0.5);

ofSetColor(255);

ofDrawRectangle(this->parent_actor_group[g]->getLocation(), 300, 300);

for (auto& actor : this->actor_group_list[g]) {

for (int i = 0; i < actor->getLog().size() - 1; i++) {

auto loc_1 = actor->getLog()[i] + this->parent_actor_group[g]->getLog()[i];

auto loc_2 = actor->getLog()[i + 1] + this->parent_actor_group[g]->getLog()[i + 1];

ofSetColor(ofColor(actor->getColor(), ofMap(i, 0, actor->getLog().size(), 0, 255)));

ofSetLineWidth(ofMap(i, 0, actor->getLog().size(), 0, 2));

ofDrawLine(loc_1, loc_2);

}

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 500;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::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/DoodleDeProgramming/tree/951f44db906a062067a35c321d1253913fb830eb

2025年10月13日

Group of random walker.

[ Video ]

[ About ]
ランダムウォークのグループ。

[ 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 getLocation(int i);
	vector<glm::vec3> getLog();
	void setColor(ofColor color);
	ofColor getColor();

private:

	int select_index;
	int next_index;

	glm::vec3 location;
	vector<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) {};

	vector<glm::vec3> parent_location_group;
	vector<vector<int>> parent_next_index_group;
	vector<int> parent_destination_group;
	vector<std::unique_ptr<Actor>> parent_actor_group;

	vector<vector<glm::vec3>> location_group_list;
	vector<vector<vector<int>>> next_index_group_list;
	vector<vector<int>> destination_group_list;
	vector<vector<std::unique_ptr<Actor>>> actor_group_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);

glm::vec3 getLocation();

glm::vec3 getLocation(int i);

vector<glm::vec3> getLog();

void setColor(ofColor color);

ofColor getColor();

private:

int select_index;

int next_index;

glm::vec3 location;

vector<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) {};

vector<glm::vec3> parent_location_group;

vector<vector<int>> parent_next_index_group;

vector<int> parent_destination_group;

vector<std::unique_ptr<Actor>> parent_actor_group;

vector<vector<glm::vec3>> location_group_list;

vector<vector<vector<int>>> next_index_group_list;

vector<vector<int>> destination_group_list;

vector<vector<std::unique_ptr<Actor>>> actor_group_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_back(this->location);
	while (this->log.size() > 100) { this->log.erase(this->log.begin()); }
}

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

	return this->location;
}

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

	return i > 0 && i < this->log.size() ? this->log[i] : glm::vec3();
}

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

	return this->log;
}

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

	this->color = value;
}

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

	return this->color;
}

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

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

	ofBackground(239);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofSetLineWidth(2);
	ofNoFill();

	ofColor color = ofColor(0);
	vector<ofColor> base_color_list;
	base_color_list.push_back(color);

	int span = 240;
	for (int x = -span * 1; x <= span * 1; x += span) {

		for (int y = -span * 1; y <= span * 1; y += span) {

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

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

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

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

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

				next_index.push_back(index);
			}
		}
		this->parent_next_index_group.push_back(next_index);
	}

	for (int i = 0; i < 9; i++) {

		this->parent_actor_group.push_back(make_unique<Actor>(this->parent_location_group, this->parent_next_index_group, this->parent_destination_group));
		this->parent_actor_group.back()->setColor(base_color_list[i % base_color_list.size()]);
	}

	span = 15;
	for (int g = 0; g < this->parent_actor_group.size(); g++) {

		vector<glm::vec3> location_group;
		for (int x = -span * 6; x <= span * 6; x += span) {

			for (int y = -span * 6; y <= span * 6; y += span) {

				location_group.push_back(glm::vec3(x, y, 0));
			}
		}

		location_group_list.push_back(location_group);

		vector<vector<int>> next_index_group;
		for (auto& location : location_group) {

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

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

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

					next_index.push_back(index);
				}
			}

			next_index_group.push_back(next_index);
		}
		this->next_index_group_list.push_back(next_index_group);


		vector<std::unique_ptr<Actor>> actor_group;
		vector<int> destination_group;
		ofColor color;
		for (int i = 0; i < 5; i++) {

			auto a = make_unique<Actor>(location_group, next_index_group, destination_group);
			actor_group.push_back(move(a));
			actor_group.back()->setColor(this->parent_actor_group[g]->getColor());
		}

		this->actor_group_list.push_back(move(actor_group));
		this->destination_group_list.push_back(destination_group);
	}
}

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

	int frame_span = 4;
	int prev_index_size = 0;

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

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

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

		actor->update(frame_span, this->parent_location_group, this->parent_next_index_group, this->parent_destination_group);
	}

	if (prev_index_size != 0) {

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

	for (int g = 0; g < this->parent_actor_group.size(); g++) {

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

			prev_index_size = this->destination_group_list[g].size();
		}

		for (auto& actor : this->actor_group_list[g]) {

			actor->update(frame_span, this->location_group_list[g], this->next_index_group_list[g], this->destination_group_list[g]);
		}

		if (prev_index_size != 0) {

			this->destination_group_list[g].erase(this->destination_group_list[g].begin(), this->destination_group_list[g].begin() + prev_index_size);
		}
	}
}

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

	this->cam.begin();

	for (int g = 0; g < this->parent_actor_group.size(); g++) {

		ofSetColor(39);
		ofDrawRectangle(this->parent_actor_group[g]->getLocation(), 200, 200);

		for (auto& actor : this->actor_group_list[g]) {

			for (int i = 0; i < actor->getLog().size() - 1; i++) {

				auto loc_1 = actor->getLog()[i] + this->parent_actor_group[g]->getLog()[i];
				auto loc_2 = actor->getLog()[i + 1] + this->parent_actor_group[g]->getLog()[i + 1];

				ofSetColor(ofColor(actor->getColor(), ofMap(i, 0, actor->getLog().size(), 39, 239)));
				ofDrawLine(loc_1, loc_2);
			}
		}
	}

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 500;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::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());
}

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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_back(this->location);

while (this->log.size() > 100) { this->log.erase(this->log.begin()); }

}

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

glm::vec3 Actor::getLocation() {

return this->location;

}

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

glm::vec3 Actor::getLocation(int i) {

return i > 0 && i < this->log.size() ? this->log[i] : glm::vec3();

}

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

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

return this->log;

}

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

void Actor::setColor(ofColor value) {

this->color = value;

}

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

ofColor Actor::getColor() {

return this->color;

}

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetLineWidth(2);

ofNoFill();

ofColor color = ofColor(0);

vector<ofColor> base_color_list;

base_color_list.push_back(color);

int span = 240;

for (int x = -span * 1; x <= span * 1; x += span) {

for (int y = -span * 1; y <= span * 1; y += span) {

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

}

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

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

int index = -1;

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

index++;

if (location == other) { continue; }

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

if (distance <= span) {

next_index.push_back(index);

}

this->parent_next_index_group.push_back(next_index);

}

for (int i = 0; i < 9; i++) {

this->parent_actor_group.push_back(make_unique<Actor>(this->parent_location_group, this->parent_next_index_group, this->parent_destination_group));

this->parent_actor_group.back()->setColor(base_color_list[i % base_color_list.size()]);

}

span = 15;

for (int g = 0; g < this->parent_actor_group.size(); g++) {

vector<glm::vec3> location_group;

for (int x = -span * 6; x <= span * 6; x += span) {

for (int y = -span * 6; y <= span * 6; y += span) {

location_group.push_back(glm::vec3(x, y, 0));

}

location_group_list.push_back(location_group);

vector<vector<int>> next_index_group;

for (auto& location : location_group) {

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

int index = -1;

for (auto& other : location_group) {

index++;

if (location == other) { continue; }

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

if (distance <= span) {

next_index.push_back(index);

}

next_index_group.push_back(next_index);

}

this->next_index_group_list.push_back(next_index_group);

vector<std::unique_ptr<Actor>> actor_group;

vector<int> destination_group;

ofColor color;

for (int i = 0; i < 5; i++) {

auto a = make_unique<Actor>(location_group, next_index_group, destination_group);

actor_group.push_back(move(a));

actor_group.back()->setColor(this->parent_actor_group[g]->getColor());

}

this->actor_group_list.push_back(move(actor_group));

this->destination_group_list.push_back(destination_group);

}

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

void ofApp::update() {

int frame_span = 4;

int prev_index_size = 0;

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

prev_index_size = this->parent_destination_group.size();

}

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

actor->update(frame_span, this->parent_location_group, this->parent_next_index_group, this->parent_destination_group);

}

if (prev_index_size != 0) {

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

}

for (int g = 0; g < this->parent_actor_group.size(); g++) {

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

prev_index_size = this->destination_group_list[g].size();

}

for (auto& actor : this->actor_group_list[g]) {

actor->update(frame_span, this->location_group_list[g], this->next_index_group_list[g], this->destination_group_list[g]);

}

if (prev_index_size != 0) {

this->destination_group_list[g].erase(this->destination_group_list[g].begin(), this->destination_group_list[g].begin() + prev_index_size);

}

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

void ofApp::draw() {

this->cam.begin();

for (int g = 0; g < this->parent_actor_group.size(); g++) {

ofSetColor(39);

ofDrawRectangle(this->parent_actor_group[g]->getLocation(), 200, 200);

for (auto& actor : this->actor_group_list[g]) {

for (int i = 0; i < actor->getLog().size() - 1; i++) {

auto loc_1 = actor->getLog()[i] + this->parent_actor_group[g]->getLog()[i];

auto loc_2 = actor->getLog()[i + 1] + this->parent_actor_group[g]->getLog()[i + 1];

ofSetColor(ofColor(actor->getColor(), ofMap(i, 0, actor->getLog().size(), 39, 239)));

ofDrawLine(loc_1, loc_2);

}

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 500;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::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/DoodleDeProgramming/tree/6cc15c251af89849289de13e90e295733d0432a6

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