2022年10月 – ページ 2 – プログラミング de 落描き

2022年10月28日

Cage of random walk. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークの籠。

[ 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 draw_arc(vector<glm::vec3> vertices_1, vector<glm::vec3> vertices_2);

	vector<glm::vec3> location_list;
	vector<int> rotate_param_list;
	vector<int> deg_start_list;
	vector<int> deg_end_list;
	vector<bool> flag_list;

	ofEasyCam cam;
};

#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 draw_arc(vector<glm::vec3> vertices_1, vector<glm::vec3> vertices_2);

vector<glm::vec3> location_list;

vector<int> rotate_param_list;

vector<int> deg_start_list;

vector<int> deg_end_list;

vector<bool> flag_list;

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofEnableDepthTest();
	ofSetLineWidth(2.5);

	int size = 90;
	for (int x = ofGetWidth() * -0.5 + size * 0.5; x <= ofGetWidth() * 0.5 - size * 0.5; x += size) {

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

			this->location_list.push_back(glm::vec3(x, y, 360));

			int rotate_param = ofRandom(4);
			this->rotate_param_list.push_back(rotate_param);

			this->deg_start_list.push_back(0);
			this->deg_end_list.push_back(90);
			this->flag_list.push_back(false);
		}
	}
}

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

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

		if (ofGetFrameNum() % 9 == 0) {

			if (ofRandom(100) < 10) { this->flag_list[i] = true; }
		}

		if (this->flag_list[i]) {

			if (this->deg_end_list[i] < 90) {

				this->deg_end_list[i] += 10;
			}
			else {

				this->deg_start_list[i] += 10;
				if (this->deg_start_list[i] >= 90) {

					this->deg_end_list[i] = 0;
					this->deg_start_list[i] = 0;
					this->rotate_param_list[i] = (this->rotate_param_list[i] + 1) % this->rotate_param_list.size();
				}
			}

			if (this->deg_start_list[i] == 0 && this->deg_end_list[i] == 90) { this->flag_list[i] = false; }
		}
	}
}

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

	this->cam.begin();

	ofRotateY(ofGetFrameNum());
	//ofRotateX(ofGetFrameNum() * 1.2);

	int size = 90;
	int radius = size * 0.5;
	int width = 10;
	for (int i = 0; i < 6; i++) {

		if (i < 4) {
			ofRotateY(90);
		}
		else if (i < 5) {

			ofRotateX(90);
		}
		else if (i < 6) {

			ofRotateX(180);
		}

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

			ofPushMatrix();
			ofTranslate(this->location_list[i].x, this->location_list[i].y);
			ofRotate(90 * this->rotate_param_list[i]);

			vector<glm::vec3> vertices_1, vertices_2;
			for (int deg = this->deg_start_list[i]; deg <= this->deg_end_list[i]; deg += 2) {

				vertices_1.push_back(glm::vec3(size * -0.5 + (radius + width) * cos(deg * DEG_TO_RAD), size * -0.5 + (radius + width) * sin(deg * DEG_TO_RAD), 360));
				vertices_2.push_back(glm::vec3(size * -0.5 + (radius - width) * cos(deg * DEG_TO_RAD), size * -0.5 + (radius - width) * sin(deg * DEG_TO_RAD), 360));
			}

			this->draw_arc(vertices_1, vertices_2);

			vertices_1.clear();
			vertices_2.clear();
			for (int deg = 180 + this->deg_start_list[i]; deg <= 180 + this->deg_end_list[i]; deg += 2) {

				vertices_1.push_back(glm::vec3(size * 0.5 + (radius + width) * cos(deg * DEG_TO_RAD), size * 0.5 + (radius + width) * sin(deg * DEG_TO_RAD), 360));
				vertices_2.push_back(glm::vec3(size * 0.5 + (radius - width) * cos(deg * DEG_TO_RAD), size * 0.5 + (radius - width) * sin(deg * DEG_TO_RAD), 360));
			}

			this->draw_arc(vertices_1, vertices_2);

			ofPopMatrix();
		}
	}

	ofSeedRandom(39);

	ofColor color;
	ofFill();
	for (int i = 0; i < 90; i++) {

		color.setHsb(ofRandom(255), 130, 255);
		ofSetColor(color);

		auto location = glm::vec3(
			ofMap(ofNoise(ofRandom(1000) + ofGetFrameNum() * 0.01), 0, 1, -450, 450),
			ofMap(ofNoise(ofRandom(1000) + ofGetFrameNum() * 0.01), 0, 1, -450, 450),
			ofMap(ofNoise(ofRandom(1000) + ofGetFrameNum() * 0.01), 0, 1, -450, 450));
		ofDrawSphere(location, 30);
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_arc(vector<glm::vec3> vertices_1, vector<glm::vec3> vertices_2) {

	ofFill();
	ofSetColor(0);
	std::reverse(vertices_2.begin(), vertices_2.end());

	ofBeginShape();
	ofVertices(vertices_1);
	ofVertices(vertices_2);
	ofEndShape(true);

	ofNoFill();
	ofSetColor(255);

	ofBeginShape();
	ofVertices(vertices_1);
	ofEndShape(false);

	ofBeginShape();
	ofVertices(vertices_2);
	ofEndShape(false);

	//ofDrawLine(vertices_1[0], vertices_2[vertices_2.size() - 1]);
	//ofDrawLine(vertices_1[vertices_1.size() - 1], vertices_2[0]);
}

//--------------------------------------------------------------
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(0);

ofEnableDepthTest();

ofSetLineWidth(2.5);

int size = 90;

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

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

this->location_list.push_back(glm::vec3(x, y, 360));

int rotate_param = ofRandom(4);

this->rotate_param_list.push_back(rotate_param);

this->deg_start_list.push_back(0);

this->deg_end_list.push_back(90);

this->flag_list.push_back(false);

}

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

void ofApp::update() {

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

if (ofGetFrameNum() % 9 == 0) {

if (ofRandom(100) < 10) { this->flag_list[i] = true; }

}

if (this->flag_list[i]) {

if (this->deg_end_list[i] < 90) {

this->deg_end_list[i] += 10;

}

else {

this->deg_start_list[i] += 10;

if (this->deg_start_list[i] >= 90) {

this->deg_end_list[i] = 0;

this->deg_start_list[i] = 0;

this->rotate_param_list[i] = (this->rotate_param_list[i] + 1) % this->rotate_param_list.size();

}

if (this->deg_start_list[i] == 0 && this->deg_end_list[i] == 90) { this->flag_list[i] = false; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

//ofRotateX(ofGetFrameNum() * 1.2);

int size = 90;

int radius = size * 0.5;

int width = 10;

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

if (i < 4) {

ofRotateY(90);

}

else if (i < 5) {

ofRotateX(90);

}

else if (i < 6) {

ofRotateX(180);

}

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

ofPushMatrix();

ofTranslate(this->location_list[i].x, this->location_list[i].y);

ofRotate(90 * this->rotate_param_list[i]);

vector<glm::vec3> vertices_1, vertices_2;

for (int deg = this->deg_start_list[i]; deg <= this->deg_end_list[i]; deg += 2) {

vertices_1.push_back(glm::vec3(size * -0.5 + (radius + width) * cos(deg * DEG_TO_RAD), size * -0.5 + (radius + width) * sin(deg * DEG_TO_RAD), 360));

vertices_2.push_back(glm::vec3(size * -0.5 + (radius - width) * cos(deg * DEG_TO_RAD), size * -0.5 + (radius - width) * sin(deg * DEG_TO_RAD), 360));

}

this->draw_arc(vertices_1, vertices_2);

vertices_1.clear();

vertices_2.clear();

for (int deg = 180 + this->deg_start_list[i]; deg <= 180 + this->deg_end_list[i]; deg += 2) {

vertices_1.push_back(glm::vec3(size * 0.5 + (radius + width) * cos(deg * DEG_TO_RAD), size * 0.5 + (radius + width) * sin(deg * DEG_TO_RAD), 360));

vertices_2.push_back(glm::vec3(size * 0.5 + (radius - width) * cos(deg * DEG_TO_RAD), size * 0.5 + (radius - width) * sin(deg * DEG_TO_RAD), 360));

}

this->draw_arc(vertices_1, vertices_2);

ofPopMatrix();

}

ofSeedRandom(39);

ofColor color;

ofFill();

for (int i = 0; i < 90; i++) {

color.setHsb(ofRandom(255), 130, 255);

ofSetColor(color);

auto location = glm::vec3(

ofMap(ofNoise(ofRandom(1000) + ofGetFrameNum() * 0.01), 0, 1, -450, 450),

ofMap(ofNoise(ofRandom(1000) + ofGetFrameNum() * 0.01), 0, 1, -450, 450));

ofDrawSphere(location, 30);

}

this->cam.end();

}

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

void ofApp::draw_arc(vector<glm::vec3> vertices_1, vector<glm::vec3> vertices_2) {

ofFill();

ofSetColor(0);

std::reverse(vertices_2.begin(), vertices_2.end());

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices_1);

ofEndShape(false);

ofBeginShape();

ofVertices(vertices_2);

ofEndShape(false);

//ofDrawLine(vertices_1[0], vertices_2[vertices_2.size() - 1]);

//ofDrawLine(vertices_1[vertices_1.size() - 1], vertices_2[0]);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221028

2022年10月27日

shake. Draw by openFrameworks

[ Video ]

[ About ]
のびーん。

[ 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;
	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);
	ofSetColor(0);

	ofEnableDepthTest();
	ofSetLineWidth(2);

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

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

	ofSeedRandom(39);

	this->mesh.clear();

	auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

	for (int radius = 50; radius <= 300; radius += 50) {

		auto rotation = glm::vec3(
			ofMap(ofNoise(noise_param.x, radius * 0.0065 - ofGetFrameNum() * 0.02), 0, 1, -90, 90),
			ofMap(ofNoise(noise_param.y, radius * 0.0065 - ofGetFrameNum() * 0.02), 0, 1, -90, 90),
			ofMap(ofNoise(noise_param.z, radius * 0.0065 - ofGetFrameNum() * 0.02), 0, 1, -90, 90));

		int start_index = this->mesh.getNumVertices();
		int index = start_index;
		for (int deg = 0; deg < 360; deg += 1) {

			auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

			auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

			if (radius % 100 != 0) {

				vertex = glm::vec4(vertex, 0) * rotation_y * rotation_x;
			}

			this->mesh.addVertex(vertex);

			if (deg > 0) {

				this->mesh.addIndex(index - 1);
				this->mesh.addIndex(index);
			}

			index++;
		}

		this->mesh.addIndex(this->mesh.getNumVertices() - 1);
		this->mesh.addIndex(start_index);
	}

	int index_span = 30;
	for (int index = 0; index < this->mesh.getNumVertices() - 360; index += index_span) {

		this->mesh.addIndex(index);
		this->mesh.addIndex(index + 360);
	}
}

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

	this->cam.begin();
	ofRotateX(-70);

	this->mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetColor(0);

ofEnableDepthTest();

ofSetLineWidth(2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

for (int radius = 50; radius <= 300; radius += 50) {

auto rotation = glm::vec3(

ofMap(ofNoise(noise_param.x, radius * 0.0065 - ofGetFrameNum() * 0.02), 0, 1, -90, 90),

ofMap(ofNoise(noise_param.y, radius * 0.0065 - ofGetFrameNum() * 0.02), 0, 1, -90, 90),

ofMap(ofNoise(noise_param.z, radius * 0.0065 - ofGetFrameNum() * 0.02), 0, 1, -90, 90));

int start_index = this->mesh.getNumVertices();

int index = start_index;

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

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

if (radius % 100 != 0) {

vertex = glm::vec4(vertex, 0) * rotation_y * rotation_x;

}

this->mesh.addVertex(vertex);

if (deg > 0) {

this->mesh.addIndex(index - 1);

this->mesh.addIndex(index);

}

index++;

}

this->mesh.addIndex(this->mesh.getNumVertices() - 1);

this->mesh.addIndex(start_index);

}

int index_span = 30;

for (int index = 0; index < this->mesh.getNumVertices() - 360; index += index_span) {

this->mesh.addIndex(index);

this->mesh.addIndex(index + 360);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(-70);

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221027

2022年10月26日

Diagonal shift. Draw by openFrameworks

[ Video ]

[ About ]
斜め移動をプラス。

[ 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();
	deque<glm::vec3> getLog();

private:

	int select_index;
	int next_index;

	glm::vec3 location;
	deque<glm::vec3> log;
};

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;

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

	vector<unique_ptr<Actor>> actor_list;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

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

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

glm::vec3 getLocation();

deque<glm::vec3> getLog();

private:

int select_index;

int next_index;

glm::vec3 location;

deque<glm::vec3> log;

};

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;

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<int> destination_list;

vector<unique_ptr<Actor>> actor_list;

};

#include "ofApp.h"	

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

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

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

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

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

	this->next_index = this->select_index;
}

//--------------------------------------------------------------
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() > 80) { this->log.pop_back(); }
}

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

	return this->location;
}

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

	return this->log;
}

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

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

	ofBackground(0);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	auto span = 20;
	for (int x = -360; x <= 360; x += span) {

		for (int y = -360; y <= 360; y += span) {

			if(glm::length(glm::vec2(x, y)) < 250){

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

	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 <= span * 1.5) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	for (int i = 0; i < 280; i++) {

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

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

	ofSetColor(255);
	for (auto& actor : this->actor_list) {

		for (auto& l : actor->getLog()) {

			ofDrawCircle(l, 5);
		}
	}

	ofSetColor(255, 0, 0);
	for (auto& actor : this->actor_list) {

		for (auto& l : actor->getLog()) {

			ofDrawCircle(l, 2);
		}
	}

	this->cam.end();
}


//--------------------------------------------------------------
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() > 80) { this->log.pop_back(); }

}

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

glm::vec3 Actor::getLocation() {

return this->location;

}

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

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

return this->log;

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

auto span = 20;

for (int x = -360; x <= 360; x += span) {

for (int y = -360; y <= 360; y += span) {

if(glm::length(glm::vec2(x, y)) < 250){

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

}

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 <= span * 1.5) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

for (int i = 0; i < 280; i++) {

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

}

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

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();

ofSetColor(255);

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

for (auto& l : actor->getLog()) {

ofDrawCircle(l, 5);

}

ofSetColor(255, 0, 0);

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

for (auto& l : actor->getLog()) {

ofDrawCircle(l, 2);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221026

2022年10月
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