circle – ページ 96 – プログラミング de 落描き

2019年4月23日2019年4月23日

Random walk on circumference. openFrameworks

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円周上のランダムウォーク

Random walk on circumference.

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#pragma once
#include "ofMain.h"
#include "Agent.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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	vector<Agent> agents;
	ofEasyCam cam;
};

#pragma once

#include "ofMain.h"

#include "Agent.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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<Agent> agents;

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofNoFill();
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

	if (ofGetFrameNum() % 120 == 0) {

		for (int i = 0; i < 50; i++) {

			this->agents.push_back(Agent(glm::vec2()));
		}
	}

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

		this->agents[i].update();

		if (this->agents[i].is_dead()) {

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

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

	this->cam.begin();

	for (auto& agent : this->agents) {

		agent.draw();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofNoFill();

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

if (ofGetFrameNum() % 120 == 0) {

for (int i = 0; i < 50; i++) {

this->agents.push_back(Agent(glm::vec2()));

}

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

this->agents[i].update();

if (this->agents[i].is_dead()) {

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

}

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

void ofApp::draw() {

this->cam.begin();

for (auto& agent : this->agents) {

agent.draw();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Agent {
public:

	Agent(glm::vec2 location);
	void update();
	void draw();
	bool is_dead();

private:

	glm::vec2 start_location;
	deque<glm::vec2> log;
	int life;
	int radius;
	int deg;
	int radius_step;
	int deg_step;
};

#pragma once

#include "ofMain.h"

class Agent {

public:

Agent(glm::vec2 location);

void update();

void draw();

bool is_dead();

private:

glm::vec2 start_location;

deque<glm::vec2> log;

int life;

int radius;

int deg;

int radius_step;

int deg_step;

};

#include "Agent.h"

//--------------------------------------------------------------
Agent::Agent(glm::vec2 location) {

	this->start_location = location;
	this->radius = 10;
	this->deg = ofRandom(360);
	this->life = 0;
}

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

	if (this->life % 15 == 0) {
	
		int r = ofRandom(4);
		switch (r){

		case 0:
		case 3:
			this->radius_step = 2;
			this->deg_step = 0;
			break;
		case 1:
			this->radius_step = 0;
			this->deg_step = 2;
			break;
		case 2:
			this->radius_step = 0;
			this->deg_step = -2;
			break;
		}
	}
	else {

		this->radius += this->radius_step;
		this->deg += this->deg_step;
	}

	auto location = this->start_location + glm::vec2(this->radius * cos(this->deg * DEG_TO_RAD), this->radius * sin(this->deg * DEG_TO_RAD));
	this->log.push_front(location);

	while (this->log.size() > 20) {

		this->log.pop_back();
	}

	this->life++;
}

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

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

		ofVertex(this->log[i]);
	}
	ofEndShape();
}

//--------------------------------------------------------------
bool Agent::is_dead() {

	return this->radius > 150;
}

#include "Agent.h"

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

Agent::Agent(glm::vec2 location) {

this->start_location = location;

this->radius = 10;

this->deg = ofRandom(360);

this->life = 0;

}

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

void Agent::update() {

if (this->life % 15 == 0) {

int r = ofRandom(4);

switch (r){

case 0:

case 3:

this->radius_step = 2;

this->deg_step = 0;

break;

case 1:

this->radius_step = 0;

this->deg_step = 2;

break;

case 2:

this->radius_step = 0;

this->deg_step = -2;

break;

}

else {

this->radius += this->radius_step;

this->deg += this->deg_step;

}

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

this->log.push_front(location);

while (this->log.size() > 20) {

this->log.pop_back();

}

this->life++;

}

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

void Agent::draw() {

ofBeginShape();

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

ofVertex(this->log[i]);

}

ofEndShape();

}

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

bool Agent::is_dead() {

return this->radius > 150;

}

[ Link ]
https://github.com/junkiyoshi/Insta20190423

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2019年4月17日2019年4月17日

Yin Yang. openFrameworks

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[ About ]
円を2分割して、陰陽(Yin Yang)をイメージしてコーディングしたら、たこ焼きイラストを生成するプログラムが出来ました

Yin Yang.

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#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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise);
};

#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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise);

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
}

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

	ofFill();

	int span = 144;
	int len = 120;
	int radius = 60;
	bool flag = true;
	for (int location_y = span * 0.5; location_y < ofGetHeight(); location_y += span) {

		for (int location_x = span * 0.5; location_x < ofGetWidth(); location_x += span) {

			ofPushMatrix();
			ofTranslate(location_x, location_y);

			vector<glm::vec2> top, noise, bottom;
			for (int deg = 0; deg <= 180; deg++) {

				auto point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				bottom.push_back(point);
				noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, -point.y * 0.5, point.y * 0.5) + 2));
			}
			this->draw_shape(bottom, noise);

			ofGetFill() ? ofNoFill() : ofFill();

			for (int deg = 180; deg <= 360; deg++) {

				auto point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				top.push_back(point);
				noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, point.y * 0.5, -point.y * 0.5) - 2));
			}
			this->draw_shape(top, noise);

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise) {

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

	ofBeginShape();
	ofVertices(side);
	ofVertices(noise);
	ofEndShape(true);

	side.clear();
	noise.clear();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofFill();

int span = 144;

int len = 120;

int radius = 60;

bool flag = true;

for (int location_y = span * 0.5; location_y < ofGetHeight(); location_y += span) {

for (int location_x = span * 0.5; location_x < ofGetWidth(); location_x += span) {

ofPushMatrix();

ofTranslate(location_x, location_y);

vector<glm::vec2> top, noise, bottom;

for (int deg = 0; deg <= 180; deg++) {

auto point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

bottom.push_back(point);

noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, -point.y * 0.5, point.y * 0.5) + 2));

}

this->draw_shape(bottom, noise);

ofGetFill() ? ofNoFill() : ofFill();

for (int deg = 180; deg <= 360; deg++) {

auto point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

top.push_back(point);

noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, point.y * 0.5, -point.y * 0.5) - 2));

}

this->draw_shape(top, noise);

ofPopMatrix();

}

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

void ofApp::draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise) {

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

ofBeginShape();

ofVertices(side);

ofVertices(noise);

ofEndShape(true);

side.clear();

noise.clear();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190417

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2019年4月12日2019年4月12日

Particles reflected in a circle. openFrameworks

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[ About ]
円の中で反射するパーティクル

Particles reflected in a circle.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	vector<glm::vec2> bases;
	vector<glm::vec2> locations;
	vector<glm::vec2> directions;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<glm::vec2> bases;

vector<glm::vec2> locations;

vector<glm::vec2> directions;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(39);
	ofSetLineWidth(2);

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

		for (int y = -240; y <= 240; y += 240) {

			for(int i = 0; i < 80; i++){

				auto base = glm::vec2(x, y);

				auto direction = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));
				direction = glm::normalize(direction) * ofRandom(1, 4);

				auto location = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));
				location = glm::normalize(location) * ofRandom(1, 100);

				this->bases.push_back(base);
				this->locations.push_back(base + location);
				this->directions.push_back(direction);
			}
		}
	}
}

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

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

		auto future = this->locations[i] + this->directions[i];
		if (glm::distance(this->bases[i], future) > 100) {

			auto len = glm::length(this->directions[i]);
			auto direction = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));
			direction = glm::normalize(direction) * len;
			this->directions[i] = direction;
		}
		else {

			this->locations[i] = future;
		}
	}
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

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

		ofSetColor(239);
		ofDrawCircle(location, 3);
		for (auto& other : this->locations) {

			if (location == other) { continue; }
			float distance = glm::distance(location, other);
			if (distance < 30) {
				
				ofSetColor(239, ofMap(distance, 0, 30, 255, 64));
				ofDrawLine(location, other);
			}
		}

	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(39);

ofSetLineWidth(2);

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

for (int y = -240; y <= 240; y += 240) {

for(int i = 0; i < 80; i++){

auto base = glm::vec2(x, y);

auto direction = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

direction = glm::normalize(direction) * ofRandom(1, 4);

auto location = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

location = glm::normalize(location) * ofRandom(1, 100);

this->bases.push_back(base);

this->locations.push_back(base + location);

this->directions.push_back(direction);

}

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

void ofApp::update() {

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

auto future = this->locations[i] + this->directions[i];

if (glm::distance(this->bases[i], future) > 100) {

auto len = glm::length(this->directions[i]);

auto direction = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

direction = glm::normalize(direction) * len;

this->directions[i] = direction;

}

else {

this->locations[i] = future;

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

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

ofSetColor(239);

ofDrawCircle(location, 3);

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

if (location == other) { continue; }

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

if (distance < 30) {

ofSetColor(239, ofMap(distance, 0, 30, 255, 64));

ofDrawLine(location, other);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190412

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