2018年8月 – ページ 10 – プログラミング de 落描き

2018年8月4日2018年8月4日

Arrows tornade. openframewrosk

[ Video ]

[ About ]
矢印の線長は速度とリンクしています

Arrow is linked to speed with line length.

[ 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 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) {}

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<ofPoint> force_fields;
	int force_field_radius;
};

#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 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) {}

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<ofPoint> force_fields;

int force_field_radius;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("Insta");

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

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

	for (int i = 0; i < 255; i++) {

		float radius = 15;
		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(0.8, 0.63, 0.1);
		circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() / 2), ofRandom(ofGetHeight() / 2), radius);

		this->circles.push_back(circle);
	}

	this->force_fields.push_back(ofPoint(ofGetWidth() / 4, ofGetHeight() / 4));
	this->force_fields.push_back(ofPoint(ofGetWidth() / 4 * 3, ofGetHeight() / 4));
	this->force_fields.push_back(ofPoint(ofGetWidth() / 4 * 3, ofGetHeight() / 4 * 3));
	this->force_fields.push_back(ofPoint(ofGetWidth() / 4, ofGetHeight() / 4 * 3));

	this->force_field_radius = 300;
}

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

	ofSeedRandom(39);

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

		shared_ptr<ofxBox2dCircle> circle = this->circles[i];
		ofPoint point = circle->getPosition();
		for (int field_index = 0; field_index < this->force_fields.size(); field_index++) {

			float distance = point.distance(this->force_fields[field_index]);
			if (distance < this->force_field_radius) {

				ofPoint p = ofPoint(this->force_field_radius * cos((field_index * 90 + 10) * DEG_TO_RAD), this->force_field_radius * sin((field_index * 90 + 10) * DEG_TO_RAD));
				circle->addForce(p, ofMap(distance, 0, this->force_field_radius, 0.1, 0.05));
			}
		}
	}

	this->box2d.update();
}


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

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

		float radius = this->circles[i]->getRadius();
		ofPoint point = this->circles[i]->getPosition();
		ofPoint velocity = this->circles[i]->getVelocity();

		ofPushMatrix();
		ofTranslate(point);

		ofColor tmp_color;
		tmp_color.setHsb(ofRandom(255), 230, 255);
		ofSetColor(tmp_color);

		float velocity_deg = atan2f(velocity.y, velocity.x) * RAD_TO_DEG;
		ofBeginShape();
		for (int deg = velocity_deg; deg < velocity_deg + 270; deg += 120) {

			ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		}
		ofEndShape(true);
		ofDrawLine(ofPoint(radius * cos(velocity_deg * DEG_TO_RAD), radius * sin(velocity_deg * DEG_TO_RAD)), velocity * -1.0);

		ofPopMatrix();
	}
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(39);

ofSetColor(239);

ofSetLineWidth(2);

this->box2d.init();

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

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

for (int i = 0; i < 255; i++) {

float radius = 15;

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.8, 0.63, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() / 2), ofRandom(ofGetHeight() / 2), radius);

this->circles.push_back(circle);

}

this->force_fields.push_back(ofPoint(ofGetWidth() / 4, ofGetHeight() / 4));

this->force_fields.push_back(ofPoint(ofGetWidth() / 4 * 3, ofGetHeight() / 4));

this->force_fields.push_back(ofPoint(ofGetWidth() / 4 * 3, ofGetHeight() / 4 * 3));

this->force_fields.push_back(ofPoint(ofGetWidth() / 4, ofGetHeight() / 4 * 3));

this->force_field_radius = 300;

}

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

void ofApp::update() {

ofSeedRandom(39);

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

shared_ptr<ofxBox2dCircle> circle = this->circles[i];

ofPoint point = circle->getPosition();

for (int field_index = 0; field_index < this->force_fields.size(); field_index++) {

float distance = point.distance(this->force_fields[field_index]);

if (distance < this->force_field_radius) {

ofPoint p = ofPoint(this->force_field_radius * cos((field_index * 90 + 10) * DEG_TO_RAD), this->force_field_radius * sin((field_index * 90 + 10) * DEG_TO_RAD));

circle->addForce(p, ofMap(distance, 0, this->force_field_radius, 0.1, 0.05));

}

this->box2d.update();

}

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

void ofApp::draw() {

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

float radius = this->circles[i]->getRadius();

ofPoint point = this->circles[i]->getPosition();

ofPoint velocity = this->circles[i]->getVelocity();

ofPushMatrix();

ofTranslate(point);

ofColor tmp_color;

tmp_color.setHsb(ofRandom(255), 230, 255);

ofSetColor(tmp_color);

float velocity_deg = atan2f(velocity.y, velocity.x) * RAD_TO_DEG;

ofBeginShape();

for (int deg = velocity_deg; deg < velocity_deg + 270; deg += 120) {

ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

}

ofEndShape(true);

ofDrawLine(ofPoint(radius * cos(velocity_deg * DEG_TO_RAD), radius * sin(velocity_deg * DEG_TO_RAD)), velocity * -1.0);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180804

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2018年8月3日2018年8月3日

Gradation Torus. openframeworks

[ Video ]

[ About ]
トーラスを分割して、グラデーションな色を付けました

I splitted Torus. And I gave it gradation color.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

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

	ofEasyCam cam;
	ofPoint make_point(float radius, float small_radius, float deg, float small_deg);
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofPoint make_point(float radius, float small_radius, float deg, float small_deg);

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	float radius = 300;
	int small_radius = 80;
	int deg_span = 10;
	int small_deg_span = 10;

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

		ofColor color = deg % (deg_span * 2) == 0 ? ofColor(239, 39, 39) : ofColor(39, 39,239);

		int start_small_deg = ofGetFrameNum() * 3 + deg;
		for (int small_deg = start_small_deg; small_deg < start_small_deg + 360; small_deg += small_deg_span) {

			color.setHsb(ofMap(small_deg, start_small_deg, start_small_deg + 360, 0, 255), 230, 230);
			ofSetColor(color);

			ofBeginShape();

			ofVertex(this->make_point(radius, small_radius, deg, small_deg));
			ofVertex(this->make_point(radius, small_radius, deg + deg_span, small_deg));
			ofVertex(this->make_point(radius, small_radius, deg + deg_span, small_deg + small_deg_span));
			ofVertex(this->make_point(radius, small_radius, deg, small_deg + small_deg_span));

			ofEndShape(true);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
ofPoint ofApp::make_point(float radius, float small_radius, float deg, float small_deg) {

	float x_1 = radius * cos(deg * DEG_TO_RAD);
	float y_1 = radius * sin(deg * DEG_TO_RAD);

	float x_2 = small_radius * cos(small_deg * DEG_TO_RAD) * cos(deg * DEG_TO_RAD);
	float y_2 = small_radius * cos(small_deg * DEG_TO_RAD) * sin(deg * DEG_TO_RAD);

	float x = x_1 + x_2;
	float y = y_1 + y_2;
	float z = small_radius * sin(small_deg * DEG_TO_RAD);

	return ofPoint(x, y, z);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

float radius = 300;

int small_radius = 80;

int deg_span = 10;

int small_deg_span = 10;

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

ofColor color = deg % (deg_span * 2) == 0 ? ofColor(239, 39, 39) : ofColor(39, 39,239);

int start_small_deg = ofGetFrameNum() * 3 + deg;

for (int small_deg = start_small_deg; small_deg < start_small_deg + 360; small_deg += small_deg_span) {

color.setHsb(ofMap(small_deg, start_small_deg, start_small_deg + 360, 0, 255), 230, 230);

ofSetColor(color);

ofBeginShape();

ofVertex(this->make_point(radius, small_radius, deg, small_deg));

ofVertex(this->make_point(radius, small_radius, deg + deg_span, small_deg));

ofVertex(this->make_point(radius, small_radius, deg + deg_span, small_deg + small_deg_span));

ofVertex(this->make_point(radius, small_radius, deg, small_deg + small_deg_span));

ofEndShape(true);

}

this->cam.end();

}

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

ofPoint ofApp::make_point(float radius, float small_radius, float deg, float small_deg) {

float x_1 = radius * cos(deg * DEG_TO_RAD);

float y_1 = radius * sin(deg * DEG_TO_RAD);

float x_2 = small_radius * cos(small_deg * DEG_TO_RAD) * cos(deg * DEG_TO_RAD);

float y_2 = small_radius * cos(small_deg * DEG_TO_RAD) * sin(deg * DEG_TO_RAD);

float x = x_1 + x_2;

float y = y_1 + y_2;

float z = small_radius * sin(small_deg * DEG_TO_RAD);

return ofPoint(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180803

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2018年8月2日2018年8月2日

Character teleportation. openframeworks

[ Video ]

[ About ]
文字ポーテーション

Character teleportation.

[ 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 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) {};

	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 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) {};

ofTrueTypeFont font;

int font_size;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("Insta");

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

	this->font_size = 130;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

}

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

	vector<char> characters = { 'A', 'B', 'C', 'D', 'E',
								'V', 'W', 'X', 'Y', 'Z'};
	for (int character_index = 0; character_index < characters.size(); character_index++) {

		ofPoint location = character_index < 5 ? ofPoint(ofGetWidth() * 0.25, this->font_size * 0.7 + (this->font_size + 3) * character_index) : ofPoint(ofGetWidth() * 0.75, this->font_size * 0.7 + (this->font_size + 3) * (character_index - 5));
		ofPushMatrix();
		ofTranslate(location);

		ofPath path = this->font.getCharacterAsPoints(characters[character_index], true, false);
		vector<ofPolyline> outline = path.getOutline();

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

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

			outline[outline_index] = outline[outline_index].getResampledByCount(180);
			vector<glm::vec3> vertices = outline[outline_index].getVertices();
			for (int vertices_index = 0; vertices_index < (int)vertices.size(); vertices_index++) {

				ofPoint point(vertices[vertices_index].x + this->font_size * -0.5, vertices[vertices_index].y + this->font_size * 0.5, vertices[vertices_index].z);
				float noise_value = ofMap(ofNoise(character_index, ofGetFrameNum() * 0.008), 0, 1, this->font_size * -0.5, this->font_size * 0.5);

				if (noise_value < 0) {

					point.x += point.x < noise_value ? -80 : 80;
				}
				else {

					point.x += point.x > noise_value ? 80 : -80;
				}

				ofVertex(point);
			}
		}

		ofEndShape();
		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(239);

ofSetColor(39);

ofNoFill();

ofSetLineWidth(2);

this->font_size = 130;

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

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

vector<char> characters = { 'A', 'B', 'C', 'D', 'E',

'V', 'W', 'X', 'Y', 'Z'};

for (int character_index = 0; character_index < characters.size(); character_index++) {

ofPoint location = character_index < 5 ? ofPoint(ofGetWidth() * 0.25, this->font_size * 0.7 + (this->font_size + 3) * character_index) : ofPoint(ofGetWidth() * 0.75, this->font_size * 0.7 + (this->font_size + 3) * (character_index - 5));

ofPushMatrix();

ofTranslate(location);

ofPath path = this->font.getCharacterAsPoints(characters[character_index], true, false);

vector<ofPolyline> outline = path.getOutline();

ofBeginShape();

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

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

outline[outline_index] = outline[outline_index].getResampledByCount(180);

vector<glm::vec3> vertices = outline[outline_index].getVertices();

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

ofPoint point(vertices[vertices_index].x + this->font_size * -0.5, vertices[vertices_index].y + this->font_size * 0.5, vertices[vertices_index].z);

float noise_value = ofMap(ofNoise(character_index, ofGetFrameNum() * 0.008), 0, 1, this->font_size * -0.5, this->font_size * 0.5);

if (noise_value < 0) {

point.x += point.x < noise_value ? -80 : 80;

}

else {

point.x += point.x > noise_value ? 80 : -80;

}

ofVertex(point);

}

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180802

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