プログラミング de 落描き – ページ 590 – クリエイティブ・コーディングによる生成物とソース

2020年7月11日

Circular walk. Draw by openFrameworks

[ Video ]

[ About ]
ぐるぐるウォーク。

Circular walk.

[ Source ]

#pragma once
#include "ofMain.h"

class Walker {

public:
	Walker(glm::vec2 location, ofColor color);
	void update();
	void change_rotate();
	void draw();
private:
	
	glm::vec2 rotate_location;
	float rotate_radius;
	float rotate_deg;
	int rotate_direction;

	vector<glm::vec2> log;
	ofColor color;
};

class ofApp : public ofBaseApp {

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

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

	vector<Walker> walker_list;
};

#pragma once

#include "ofMain.h"

class Walker {

public:

Walker(glm::vec2 location, ofColor color);

void update();

void change_rotate();

void draw();

private:

glm::vec2 rotate_location;

float rotate_radius;

float rotate_deg;

int rotate_direction;

vector<glm::vec2> log;

ofColor color;

};

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<Walker> walker_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
Walker::Walker(glm::vec2 location, ofColor color) {

	this->log.push_back(location);
	this->change_rotate();

	this->color = color;
}

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

	if (glm::length(this->log.back()) > 720) {

		this->log.clear();
		auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300));
		this->log.push_back(location);
		this->change_rotate();
	}

	auto location = this->rotate_location + glm::vec2(this->rotate_radius * cos(this->rotate_deg * DEG_TO_RAD), this->rotate_radius * sin(this->rotate_deg * DEG_TO_RAD));
	this->rotate_deg += this->rotate_direction * 10;
	this->rotate_radius -= 0.25;

	this->log.push_back(location);

	if (this->rotate_radius < 0 || ofRandom(100) < 0.5) {

		this->change_rotate();
	}

	while (this->log.size() > 150) { this->log.erase(this->log.begin()); }
}

//--------------------------------------------------------------
void Walker::change_rotate() {

	auto tmp_radius = ofRandom(30, 80);
	auto tmp_deg = this->rotate_deg + ofRandom(-90, 90);
	this->rotate_location = this->log.back() + glm::vec2(tmp_radius * cos(tmp_deg * DEG_TO_RAD), tmp_radius * sin(tmp_deg * DEG_TO_RAD));
	this->rotate_deg = 180 + tmp_deg;
	this->rotate_radius = tmp_radius;

	this->rotate_direction = ofRandom(100) < 50 ? 1 : -1;
}

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

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

		if (i < this->log.size() * 0.5) {

			ofSetColor(ofColor(color, ofMap(i, 0, this->log.size() * 0.5, 0, 255)));
		}
		else {

			ofSetColor(ofColor(color));
		}
		
		ofDrawLine(this->log[i], this->log[i + 1]);
	}
}

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetLineWidth(2);

	vector<ofColor> base_color_list;
	ofColor color;
	vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	for (int i = 0; i < 20; i++) {

		this->walker_list.push_back(Walker(glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300)), base_color_list[ofRandom(base_color_list.size())]));
	}
}

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

	for (auto& walker : this->walker_list) {

		walker.update();
	}
}

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

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

	for (auto& walker : this->walker_list) {

		walker.draw();
	}
}

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

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

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#include "ofApp.h"

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

Walker::Walker(glm::vec2 location, ofColor color) {

this->log.push_back(location);

this->change_rotate();

this->color = color;

}

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

void Walker::update() {

if (glm::length(this->log.back()) > 720) {

this->log.clear();

auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300));

this->log.push_back(location);

this->change_rotate();

}

auto location = this->rotate_location + glm::vec2(this->rotate_radius * cos(this->rotate_deg * DEG_TO_RAD), this->rotate_radius * sin(this->rotate_deg * DEG_TO_RAD));

this->rotate_deg += this->rotate_direction * 10;

this->rotate_radius -= 0.25;

this->log.push_back(location);

if (this->rotate_radius < 0 || ofRandom(100) < 0.5) {

this->change_rotate();

}

while (this->log.size() > 150) { this->log.erase(this->log.begin()); }

}

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

void Walker::change_rotate() {

auto tmp_radius = ofRandom(30, 80);

auto tmp_deg = this->rotate_deg + ofRandom(-90, 90);

this->rotate_location = this->log.back() + glm::vec2(tmp_radius * cos(tmp_deg * DEG_TO_RAD), tmp_radius * sin(tmp_deg * DEG_TO_RAD));

this->rotate_deg = 180 + tmp_deg;

this->rotate_radius = tmp_radius;

this->rotate_direction = ofRandom(100) < 50 ? 1 : -1;

}

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

void Walker::draw() {

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

if (i < this->log.size() * 0.5) {

ofSetColor(ofColor(color, ofMap(i, 0, this->log.size() * 0.5, 0, 255)));

}

else {

ofSetColor(ofColor(color));

}

ofDrawLine(this->log[i], this->log[i + 1]);

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

vector<ofColor> base_color_list;

ofColor color;

vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

for (int i = 0; i < 20; i++) {

this->walker_list.push_back(Walker(glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300)), base_color_list[ofRandom(base_color_list.size())]));

}

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

void ofApp::update() {

for (auto& walker : this->walker_list) {

walker.update();

}

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

void ofApp::draw() {

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

for (auto& walker : this->walker_list) {

walker.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200711

2020年7月10日

Random walk with a side trip. Draw by openFrameworks

[ Video ]

[ About ]
寄り道するランダムウォーク。

Random walk with a side trip.

[ Source ]

#pragma once
#include "ofMain.h"

class Walker {

public:
	Walker(glm::vec2 location);
	void update();
	void draw();
private:
	glm::vec2 location;
	glm::vec2 direction;

	glm::vec2 rotate_location;
	float rotate_radius;
	float rotate_deg;

	vector<glm::vec2> 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 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<Walker> walker_list;
};

#pragma once

#include "ofMain.h"

class Walker {

public:

Walker(glm::vec2 location);

void update();

void draw();

private:

glm::vec2 location;

glm::vec2 direction;

glm::vec2 rotate_location;

float rotate_radius;

float rotate_deg;

vector<glm::vec2> 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 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<Walker> walker_list;

};

#include "ofApp.h"

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

	this->location = location;
	this->direction = glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))) * 3;

	this->rotate_location = glm::vec2();
	this->rotate_radius = 0;
	this->rotate_deg = 0;
}

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

	if (this->location.x > -230 && this->location.x < 230 && this->location.y > -230 && this->location.y < 230) {

		if (this->log.size() > 0 && ofRandom(1000) < 5) {

			auto prev_location = this->log.back();
			auto rad = std::atan2(this->location.y - prev_location.y, this->location.x - prev_location.x);
			this->rotate_radius = 40;

			if (ofRandom(100) < 50) {

				this->rotate_location = this->location + glm::vec2(this->rotate_radius * cos(rad + PI * 0.5), this->rotate_radius * sin(rad + PI * 0.5));
				this->rotate_deg = 270;
			}
			else {

				this->rotate_location = this->location + glm::vec2(this->rotate_radius * cos(rad - PI * 0.5), this->rotate_radius * sin(rad - PI * 0.5));
				this->rotate_deg = 90;
			}
		}
	}

	if (this->rotate_radius < 10) {

		this->location += this->direction;

		if (this->location.x < -300 || this->location.x > 300) {

			this->direction *= -1;
			this->location += this->direction;
		}

		if (this->location.y < -300 || this->location.y > 300) {

			this->direction *= -1;
			this->location += this->direction;
		}
	}
	else {

		this->location = this->rotate_location + glm::vec2(this->rotate_radius * cos(this->rotate_deg * DEG_TO_RAD), this->rotate_radius * sin(this->rotate_deg * DEG_TO_RAD));
		this->rotate_deg += 15;
		this->rotate_radius = this->rotate_radius <= 0 ? 0 : this->rotate_radius - 0.5;

		this->direction = glm::normalize(this->location - this->log.back()) * 3;

		if (ofRandom(100) < 1) {

			this->rotate_radius = 0;
		}
	}

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

	while (this->log.size() > 35){
		
		this->log.erase(this->log.begin());
	}
}

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

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

		ofSetColor(ofColor(ofMap(i, 0, this->log.size(), 239, 39)));
		ofDrawLine(this->log[i], this->log[i + 1]);
	}

	ofFill();
	ofDrawCircle(this->log.back(), 4);
}

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);

	for (int i = 0; i < 55; i++) {

		this->walker_list.push_back(Walker(glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300))));
	}
}

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

	for (auto& walker : this->walker_list) {

		walker.update();
	}
}

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

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

	for (auto& walker : this->walker_list) {

		walker.draw();
	}
}

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

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

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#include "ofApp.h"

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

Walker::Walker(glm::vec2 location) {

this->location = location;

this->direction = glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))) * 3;

this->rotate_location = glm::vec2();

this->rotate_radius = 0;

this->rotate_deg = 0;

}

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

void Walker::update() {

if (this->location.x > -230 && this->location.x < 230 && this->location.y > -230 && this->location.y < 230) {

if (this->log.size() > 0 && ofRandom(1000) < 5) {

auto prev_location = this->log.back();

auto rad = std::atan2(this->location.y - prev_location.y, this->location.x - prev_location.x);

this->rotate_radius = 40;

if (ofRandom(100) < 50) {

this->rotate_location = this->location + glm::vec2(this->rotate_radius * cos(rad + PI * 0.5), this->rotate_radius * sin(rad + PI * 0.5));

this->rotate_deg = 270;

}

else {

this->rotate_location = this->location + glm::vec2(this->rotate_radius * cos(rad - PI * 0.5), this->rotate_radius * sin(rad - PI * 0.5));

this->rotate_deg = 90;

}

if (this->rotate_radius < 10) {

this->location += this->direction;

if (this->location.x < -300 || this->location.x > 300) {

this->direction *= -1;

this->location += this->direction;

}

if (this->location.y < -300 || this->location.y > 300) {

this->direction *= -1;

this->location += this->direction;

}

else {

this->location = this->rotate_location + glm::vec2(this->rotate_radius * cos(this->rotate_deg * DEG_TO_RAD), this->rotate_radius * sin(this->rotate_deg * DEG_TO_RAD));

this->rotate_deg += 15;

this->rotate_radius = this->rotate_radius <= 0 ? 0 : this->rotate_radius - 0.5;

this->direction = glm::normalize(this->location - this->log.back()) * 3;

if (ofRandom(100) < 1) {

this->rotate_radius = 0;

}

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

while (this->log.size() > 35){

this->log.erase(this->log.begin());

}

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

void Walker::draw() {

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

ofSetColor(ofColor(ofMap(i, 0, this->log.size(), 239, 39)));

ofDrawLine(this->log[i], this->log[i + 1]);

}

ofFill();

ofDrawCircle(this->log.back(), 4);

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

for (int i = 0; i < 55; i++) {

this->walker_list.push_back(Walker(glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300))));

}

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

void ofApp::update() {

for (auto& walker : this->walker_list) {

walker.update();

}

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

void ofApp::draw() {

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

for (auto& walker : this->walker_list) {

walker.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200710

2020年7月9日

Group of sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体の塊。

Group of sphere.

[ 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_sphere(glm::vec3 location, float radius);

	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_sphere(glm::vec3 location, float radius);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 2);
	ofRotateX(ofGetFrameNum() * 1.54);

	this->draw_sphere(glm::vec3(), 300);

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_sphere(glm::vec3 location, float radius) {

	vector<glm::vec3> location_list = {
		location + glm::vec3(-radius * 0.5, -radius * 0.5, radius * 0.5),
		location + glm::vec3(-radius * 0.5, radius * 0.5, radius * 0.5),
		location + glm::vec3(radius * 0.5, radius * 0.5, radius * 0.5),
		location + glm::vec3(radius * 0.5, -radius * 0.5, radius * 0.5),
		location + glm::vec3(-radius * 0.5, -radius * 0.5, -radius * 0.5),
		location + glm::vec3(-radius * 0.5, radius * 0.5, -radius * 0.5),
		location + glm::vec3(radius * 0.5, radius * 0.5, -radius * 0.5),
		location + glm::vec3(radius * 0.5, -radius * 0.5, -radius * 0.5)
	};

	if (radius < 50) {

		for (auto& l : location_list) {

			auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

			if (noise_value < 0.85) {

				ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));
				ofDrawSphere(l, radius * 0.5);
			}
		}
	}
	else {

		for (auto& l : location_list) {

			auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

			if (radius == 300 || noise_value < 0.5) {

				this->draw_sphere(l, radius * 0.5);
			}
			else if (noise_value < 0.70) {

				ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));
				ofDrawSphere(l, radius * 0.5);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 2);

ofRotateX(ofGetFrameNum() * 1.54);

this->draw_sphere(glm::vec3(), 300);

this->cam.end();

}

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

void ofApp::draw_sphere(glm::vec3 location, float radius) {

vector<glm::vec3> location_list = {

location + glm::vec3(-radius * 0.5, -radius * 0.5, radius * 0.5),

location + glm::vec3(-radius * 0.5, radius * 0.5, radius * 0.5),

location + glm::vec3(radius * 0.5, radius * 0.5, radius * 0.5),

location + glm::vec3(radius * 0.5, -radius * 0.5, radius * 0.5),

location + glm::vec3(-radius * 0.5, -radius * 0.5, -radius * 0.5),

location + glm::vec3(-radius * 0.5, radius * 0.5, -radius * 0.5),

location + glm::vec3(radius * 0.5, radius * 0.5, -radius * 0.5),

location + glm::vec3(radius * 0.5, -radius * 0.5, -radius * 0.5)

};

if (radius < 50) {

for (auto& l : location_list) {

auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

if (noise_value < 0.85) {

ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));

ofDrawSphere(l, radius * 0.5);

}

else {

for (auto& l : location_list) {

auto noise_value = ofNoise(glm::vec4(l * 0.05, ofGetFrameNum() * 0.003));

if (radius == 300 || noise_value < 0.5) {

this->draw_sphere(l, radius * 0.5);

}

else if (noise_value < 0.70) {

ofSetColor(ofMap(ofNoise(l * 0.05), 0, 1, 39, 239));

ofDrawSphere(l, radius * 0.5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200709

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