プログラミング de 落描き – ページ 583 – 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9月25日2020年9月25日

life span. Draw by openFrameworks

[ Video ]

[ About ]
life span.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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<ofColor> base_color_list;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circle_list;
	vector<float> radius_list;
	vector<ofColor> color_list;
	vector<float> life_list;
	vector<float> life_speed_list;

	ofTrueTypeFont font;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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<ofColor> base_color_list;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circle_list;

vector<float> radius_list;

vector<ofColor> color_list;

vector<float> life_list;

vector<float> life_speed_list;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofSetCircleResolution(60);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 20, true, true, true);

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();
}

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

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

		this->life_list[i] -= this->life_speed_list[i];

		if (this->life_list[i] < 0) {

			this->circle_list.erase(this->circle_list.begin() + i);
			this->radius_list.erase(this->radius_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);
			this->life_speed_list.erase(this->life_speed_list.begin() + i);
		}
	}

	if (ofGetFrameNum() % 15 == 0) {

		auto radius = ofRandom(25, 50);

		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(0.5, 0.83, 0.5);
		circle->setup(this->box2d.getWorld(), ofRandom(radius, ofGetWidth() - radius), radius, radius);
		circle->setRotation(ofRandom(360));
		this->circle_list.push_back(circle);
		this->radius_list.push_back(radius);

		int color_index = ofRandom(this->base_color_list.size());
		this->color_list.push_back(this->base_color_list[color_index]);
		this->life_list.push_back(255);
		this->life_speed_list.push_back(ofRandom(0.05, 1.2));
	}

	this->box2d.update();
}

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

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

		ofPushMatrix();
		ofTranslate(this->circle_list[i]->getPosition());
		ofRotate(this->circle_list[i]->getRotation());

		auto color_value = this->life_list[i] < 30 ? ofMap(this->life_list[i], 0, 30, 239, 39) : 39;

		ofFill();
		ofSetColor(ofColor(this->color_list[i], ofMap(color_value, 39, 239, 255, 0)));
		ofDrawCircle(glm::vec3(), this->radius_list[i]);

		ofFill();
		ofSetColor(239);
		string word = to_string((int)this->life_list[i]);
		this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofSetCircleResolution(60);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 20, true, true, true);

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

this->box2d.init();

this->box2d.setGravity(0, 50);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

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

this->life_list[i] -= this->life_speed_list[i];

if (this->life_list[i] < 0) {

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

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

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

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

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

}

if (ofGetFrameNum() % 15 == 0) {

auto radius = ofRandom(25, 50);

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.5, 0.83, 0.5);

circle->setup(this->box2d.getWorld(), ofRandom(radius, ofGetWidth() - radius), radius, radius);

circle->setRotation(ofRandom(360));

this->circle_list.push_back(circle);

this->radius_list.push_back(radius);

int color_index = ofRandom(this->base_color_list.size());

this->color_list.push_back(this->base_color_list[color_index]);

this->life_list.push_back(255);

this->life_speed_list.push_back(ofRandom(0.05, 1.2));

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofPushMatrix();

ofTranslate(this->circle_list[i]->getPosition());

ofRotate(this->circle_list[i]->getRotation());

auto color_value = this->life_list[i] < 30 ? ofMap(this->life_list[i], 0, 30, 239, 39) : 39;

ofFill();

ofSetColor(ofColor(this->color_list[i], ofMap(color_value, 39, 239, 255, 0)));

ofDrawCircle(glm::vec3(), this->radius_list[i]);

ofFill();

ofSetColor(239);

string word = to_string((int)this->life_list[i]);

this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200925

2020年9月24日2020年9月24日

Concentrated line. Draw by openFrameworks

[ Video ]

[ About ]
集中線。

Concentrated line.

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 20, true, true, true);
}

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

	ofSeedRandom(39);
}

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

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

	int radius = 100;
	for (int x = -230; x <= 230; x += 230) {

		for (int y = -230; y <= 230; y += 230) {

			ofPushMatrix();
			ofTranslate(x, y);

			vector<glm::vec2> vertices;
			for (float deg = 0; deg < 360; deg += 0.3) {

				auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				auto noise_value = ofNoise(x + location.x * 0.1, y + location.y * 0.1, ofGetFrameNum() * 0.0035);

				if (noise_value > 0.5) {

					location *= ofMap(noise_value, 0.5, 1.0, 1.0, 0.3);
				}

				vertices.push_back(location);
			}

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(39);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			string word = "Yes!";
			this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 20, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

int radius = 100;

for (int x = -230; x <= 230; x += 230) {

for (int y = -230; y <= 230; y += 230) {

ofPushMatrix();

ofTranslate(x, y);

vector<glm::vec2> vertices;

for (float deg = 0; deg < 360; deg += 0.3) {

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

auto noise_value = ofNoise(x + location.x * 0.1, y + location.y * 0.1, ofGetFrameNum() * 0.0035);

if (noise_value > 0.5) {

location *= ofMap(noise_value, 0.5, 1.0, 1.0, 0.3);

}

vertices.push_back(location);

}

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

string word = "Yes!";

this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200924

2020年9月23日2020年9月23日

Changing Shapes. Draw by openFrameworks

[ Video ]

[ About ]
変形する図形。

Changing Shapes.

[ 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 setShapeToMesh(ofMesh& mesh_target, ofMesh& frame_target, glm::vec3 location, float len, int param_start, int param_end, ofColor face_color, ofColor frame_color);
	glm::vec2 make_point(int len, int param);

	vector<ofMesh> face_list, frame_list;
};

#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 setShapeToMesh(ofMesh& mesh_target, ofMesh& frame_target, glm::vec3 location, float len, int param_start, int param_end, ofColor face_color, ofColor frame_color);

glm::vec2 make_point(int len, int param);

vector<ofMesh> face_list, frame_list;

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);

	this->face_list.clear();
	this->frame_list.clear();

	for (int x = -180; x <= 180; x += 360) {

		for (int y = -180; y <= 180; y += 360) {

			float noise_seed_1 = ofRandom(1000);
			float noise_seed_2 = ofRandom(1000);

			for (int i = 0; i < 150; i++) {

				int param_start = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.003 + i * 0.001), 0, 1, 0, 200);
				int param_end = param_start + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.003 + i * 0.001), 0, 1, 25, 50);

				ofMesh face, frame;
				frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
				this->setShapeToMesh(face, frame, glm::vec3(x, y, 0), 350, param_start, param_end, ofColor(ofMap(i, 0, 150, 200, 39)), ofColor(ofMap(i, 0, 150, 78, 239)));

				this->face_list.push_back(face);
				this->frame_list.push_back(frame);
			}
		}
	}

}

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

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

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

		this->face_list[i].drawFaces();
		this->frame_list[i].drawWireframe();
	}
}

//--------------------------------------------------------------
void ofApp::setShapeToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float len, int param_start, int param_end, ofColor face_color, ofColor frame_color) {

	vector<glm::vec3> vertices;
	vertices.push_back(location + this->make_point(len, param_start));
	for (int param = param_start; param < param_end; param++) {

		if (param % 25 == 0) { vertices.push_back(location + this->make_point(len, param)); }
	}
	vertices.push_back(location + this->make_point(len, param_end));

	face_target.addVertices(vertices);
	frame_target.addVertices(vertices);

	face_target.addIndex(0); face_target.addIndex(1); face_target.addIndex(2);
	for (int i = 2; i < face_target.getNumVertices() - 1; i++) {

		face_target.addIndex(0); face_target.addIndex(i); face_target.addIndex(i + 1);
	}

	for (int i = 0; i <frame_target.getNumVertices() - 1; i++) {

		frame_target.addIndex(i); frame_target.addIndex(i + 1);
	}

	frame_target.addIndex(0); frame_target.addIndex(face_target.getNumVertices() - 1);	


	for (int i = 0; i < vertices.size(); i++) {

		face_target.addColor(face_color);
		frame_target.addColor(frame_color);
	}
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
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(239);

ofSetColor(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face_list.clear();

this->frame_list.clear();

for (int x = -180; x <= 180; x += 360) {

for (int y = -180; y <= 180; y += 360) {

float noise_seed_1 = ofRandom(1000);

float noise_seed_2 = ofRandom(1000);

for (int i = 0; i < 150; i++) {

int param_start = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.003 + i * 0.001), 0, 1, 0, 200);

int param_end = param_start + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.003 + i * 0.001), 0, 1, 25, 50);

ofMesh face, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

this->setShapeToMesh(face, frame, glm::vec3(x, y, 0), 350, param_start, param_end, ofColor(ofMap(i, 0, 150, 200, 39)), ofColor(ofMap(i, 0, 150, 78, 239)));

this->face_list.push_back(face);

this->frame_list.push_back(frame);

}

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

void ofApp::draw() {

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

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

this->face_list[i].drawFaces();

this->frame_list[i].drawWireframe();

}

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

void ofApp::setShapeToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float len, int param_start, int param_end, ofColor face_color, ofColor frame_color) {

vector<glm::vec3> vertices;

vertices.push_back(location + this->make_point(len, param_start));

for (int param = param_start; param < param_end; param++) {

if (param % 25 == 0) { vertices.push_back(location + this->make_point(len, param)); }

}

vertices.push_back(location + this->make_point(len, param_end));

face_target.addVertices(vertices);

frame_target.addVertices(vertices);

face_target.addIndex(0); face_target.addIndex(1); face_target.addIndex(2);

for (int i = 2; i < face_target.getNumVertices() - 1; i++) {

face_target.addIndex(0); face_target.addIndex(i); face_target.addIndex(i + 1);

}

for (int i = 0; i <frame_target.getNumVertices() - 1; i++) {

frame_target.addIndex(i); frame_target.addIndex(i + 1);

}

frame_target.addIndex(0); frame_target.addIndex(face_target.getNumVertices() - 1);

for (int i = 0; i < vertices.size(); i++) {

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200923

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