2022年3月 – プログラミング de 落描き

2022年3月31日

Noisy cylinder. Draw by openFrameworks

[ Video ]

[ About ]
ノイジーな円柱。

[ 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(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	for (int z = -270; z <= 270; z += 20) {

		for (int radius = 180; radius <= 360; radius += 60) {

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

				auto noise_value = ofNoise(glm::vec3(radius * cos(deg * DEG_TO_RAD) * 0.0025, radius * sin(deg * DEG_TO_RAD) * 0.0025, z * 0.005 + ofGetFrameNum() * 0.02));

				if (noise_value < 0.45) {

					deg_end = deg;

					if (deg == 0) {

						while (true) {

							tmp_deg -= 1;
							auto tmp_noise_value = ofNoise(glm::vec3(radius * cos(tmp_deg * DEG_TO_RAD) * 0.0025, radius * sin(tmp_deg * DEG_TO_RAD) * 0.0025, z * 0.005 + ofGetFrameNum() * 0.02));
							if (tmp_noise_value > 0.45 || tmp_deg < -360) { break; }
							deg_start = tmp_deg;
						}
					}
				}
				else {

					if (deg_start < deg_end) {

						this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, z + 8), radius, 30, 19, deg_start, deg_end);
					}

					deg_start = deg;
					deg_end = deg;
				}
			}

			if (deg_start != deg_end) {

				this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, z + 8), radius, 30, 19, deg_start, deg_end);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.5);

	ofSetColor(0);
	this->face.draw();

	ofSetColor(200);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
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(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int z = -270; z <= 270; z += 20) {

for (int radius = 180; radius <= 360; radius += 60) {

int deg_start = 0;

int deg_end = 0;

int tmp_deg = 0;

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

auto noise_value = ofNoise(glm::vec3(radius * cos(deg * DEG_TO_RAD) * 0.0025, radius * sin(deg * DEG_TO_RAD) * 0.0025, z * 0.005 + ofGetFrameNum() * 0.02));

if (noise_value < 0.45) {

deg_end = deg;

if (deg == 0) {

while (true) {

tmp_deg -= 1;

auto tmp_noise_value = ofNoise(glm::vec3(radius * cos(tmp_deg * DEG_TO_RAD) * 0.0025, radius * sin(tmp_deg * DEG_TO_RAD) * 0.0025, z * 0.005 + ofGetFrameNum() * 0.02));

if (tmp_noise_value > 0.45 || tmp_deg < -360) { break; }

deg_start = tmp_deg;

}

else {

if (deg_start < deg_end) {

this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, z + 8), radius, 30, 19, deg_start, deg_end);

}

deg_start = deg;

deg_end = deg;

}

if (deg_start != deg_end) {

this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, z + 8), radius, 30, 19, deg_start, deg_end);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.5);

ofSetColor(0);

this->face.draw();

ofSetColor(200);

this->frame.drawWireframe();

this->cam.end();

}

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

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/Insta20220331

2022年3月30日

WAVING. Draw by openFrameworks

[ Video ]

[ About ]
文字をNoiseの値で丸める。

Round the character with the value of Noise.

[ 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) {};

	ofTrueTypeFont font;
	int font_size;
};

#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) {};

ofTrueTypeFont font;

int font_size;

};

#include "ofApp.h"	


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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	this->font_size = 120;

	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	string word = "WAVING";
	auto word_size = glm::vec2(this->font.stringWidth(word), this->font.stringHeight(word));

	auto char_path_list = this->font.getStringAsPoints(word, true, false);
	int sample_count = 120;

	for (int char_index = 0; char_index < char_path_list.size(); char_index++) {

		vector<ofPolyline> outline = char_path_list[char_index].getOutline();

		ofFill();
		ofSetColor(255);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

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

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

				auto location = vertex - glm::vec3(word_size.x * 0.5, word_size.y * -0.5, 0);
				auto noise_value = ofNoise(location.x * 0.005 + ofGetFrameNum() * 0.025);
				auto value = ofMap(noise_value, 0, 1, 100, -120);

				if (location.y < value) {

					location.y = value;
				}

				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(255);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

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

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

				auto location = vertex - glm::vec3(word_size.x * 0.5, word_size.y * -0.5, 0);
				ofVertex(location);
			}
		}
		ofEndShape(true);
	}
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableDepthTest();

this->font_size = 120;

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);

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

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

string word = "WAVING";

auto word_size = glm::vec2(this->font.stringWidth(word), this->font.stringHeight(word));

auto char_path_list = this->font.getStringAsPoints(word, true, false);

int sample_count = 120;

for (int char_index = 0; char_index < char_path_list.size(); char_index++) {

vector<ofPolyline> outline = char_path_list[char_index].getOutline();

ofFill();

ofSetColor(255);

ofBeginShape();

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

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

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

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(word_size.x * 0.5, word_size.y * -0.5, 0);

auto noise_value = ofNoise(location.x * 0.005 + ofGetFrameNum() * 0.025);

auto value = ofMap(noise_value, 0, 1, 100, -120);

if (location.y < value) {

location.y = value;

}

ofVertex(location);

}

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

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

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

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

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(word_size.x * 0.5, word_size.y * -0.5, 0);

ofVertex(location);

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220330

2022年3月29日

Arrows in box. Draw by openFrameworks

[ Video ]

[ About ]
箱の中を移動する矢印。

Arrows moving through the box.

[ 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 get_location();
	glm::vec3 get_prev_location();

private:

	int select_index;
	int next_index;

	glm::vec3 location;
	glm::vec3 prev_location;
};

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_arrow(glm::vec3 location, glm::vec3 next_location, float size, ofColor color);

	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 get_location();

glm::vec3 get_prev_location();

private:

int select_index;

int next_index;

glm::vec3 location;

glm::vec3 prev_location;

};

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_arrow(glm::vec3 location, glm::vec3 next_location, float size, ofColor color);

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() + 1;
		this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];
		while (--retry > 0) {

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

				if (tmp_index != this->next_index) {

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

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

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

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

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

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

	return this->location;
}

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

	return this->prev_location;
}

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

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

	ofBackground(255);
	ofEnableDepthTest();
	ofSetLineWidth(3);

	auto span = 50;
	for (int x = -200; x <= 200; x += span) {

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

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

				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 <= span + 1) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	for (int i = 0; i < 600; 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 = 15;
	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();
	ofRotateY(ofGetFrameNum() * 0.3);

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

		auto alpha = ofMap(actor->get_location().z, -300, 300, 0, 255);

		this->draw_arrow(actor->get_prev_location(), actor->get_location(), 20, ofColor(255));
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec3 location, glm::vec3 next_location, float size, ofColor color) {

	auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

	ofPushMatrix();
	ofTranslate(location);

	if (location.z > next_location.z) {
	
		ofRotateY(90);
	}
	else if (location.z < next_location.z) {

		ofRotateY(270);
	}

	ofSetColor(0);
	ofFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));
	ofEndShape();

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
	ofEndShape();

	ofSetColor(255);
	ofNoFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));
	ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
	ofEndShape();

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
	ofEndShape();

	ofPopMatrix();
}

//--------------------------------------------------------------
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() + 1;

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

while (--retry > 0) {

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

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

if (tmp_index != this->next_index) {

destination_list.push_back(this->next_index);

break;

}

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

}

if (retry <= 0) {

destination_list.push_back(this->select_index);

this->next_index = this->select_index;

}

auto param = ofGetFrameNum() % frame_span;

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

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

this->prev_location = location;

}

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

}

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

glm::vec3 Actor::get_location() {

return this->location;

}

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

glm::vec3 Actor::get_prev_location() {

return this->prev_location;

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofEnableDepthTest();

ofSetLineWidth(3);

auto span = 50;

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

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

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

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 <= span + 1) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

for (int i = 0; i < 600; 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 = 15;

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();

ofRotateY(ofGetFrameNum() * 0.3);

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

auto alpha = ofMap(actor->get_location().z, -300, 300, 0, 255);

this->draw_arrow(actor->get_prev_location(), actor->get_location(), 20, ofColor(255));

}

this->cam.end();

}

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

void ofApp::draw_arrow(glm::vec3 location, glm::vec3 next_location, float size, ofColor color) {

auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

ofPushMatrix();

ofTranslate(location);

if (location.z > next_location.z) {

ofRotateY(90);

}

else if (location.z < next_location.z) {

ofRotateY(270);

}

ofSetColor(0);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofEndShape();

ofSetColor(255);

ofNoFill();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));

ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220329

2022年3月
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