2020年3月 – ページ 5 – プログラミング de 落描き

2020年3月19日2020年3月19日

Glowing orb. openFrameworks

[ Video ]

[ About ]
OpenCVのぼかしを使って発光っぽいのを目指す。

Glowing orb.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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) {};

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;

	vector<glm::vec2> location_list;
	vector<ofColor> color_list;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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) {};

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

vector<glm::vec2> location_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	ofSeedRandom(39);

	this->location_list.clear();
	this->color_list.clear();

	this->fbo.begin();
	ofClear(0);
	ofFill();

	ofColor color;
	glm::vec2 location;
	for (int i = 0; i < 16; i++) {

		color.setHsb(ofMap(i, 0, 16, 0, 255), 255, 255);
		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

		ofSetColor(color);
		for (int k = 0; k < 8; k++) {

			location = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetHeight()));

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

				ofVertex(location + glm::vec2(ofMap(k, 0, 8, 5, 40) * cos(deg * DEG_TO_RAD), ofMap(k, 0, 8, 5, 40) * sin(deg * DEG_TO_RAD)));
			}
			ofEndShape(true);
		}

		this->color_list.push_back(color);
		this->location_list.push_back(location);
	}

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(49, 49), 50, 50);
}

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

	ofFill();
	ofSetColor(255);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(0, 0);
	
	for (int i = 0; i < this->location_list.size(); i++) {

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

			vertices.push_back(this->location_list[i] + glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)));
		}

		ofFill();
		ofSetColor(255);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(this->color_list[i]);
		ofBeginShape();
		ofVertices(vertices);
		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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->fbo.allocate(ofGetWidth(), ofGetHeight());

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

ofSeedRandom(39);

this->location_list.clear();

this->color_list.clear();

this->fbo.begin();

ofClear(0);

ofFill();

ofColor color;

glm::vec2 location;

for (int i = 0; i < 16; i++) {

color.setHsb(ofMap(i, 0, 16, 0, 255), 255, 255);

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

ofSetColor(color);

for (int k = 0; k < 8; k++) {

location = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetHeight()));

ofBeginShape();

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

ofVertex(location + glm::vec2(ofMap(k, 0, 8, 5, 40) * cos(deg * DEG_TO_RAD), ofMap(k, 0, 8, 5, 40) * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

}

this->color_list.push_back(color);

this->location_list.push_back(location);

}

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(49, 49), 50, 50);

}

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

void ofApp::draw() {

ofFill();

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(0, 0);

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

vector<glm::vec2> vertices;

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

vertices.push_back(this->location_list[i] + glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)));

}

ofFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200319

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年3月18日2020年3月18日

Random walk of rod & camera tracking. openFrameworks

[ Video ]

[ About ]
棒状のランダムウォークとカメラ追従。

Random walk of rod & camera tracking.

[ 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;

	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) {};

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	
	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

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

	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

	for (int i = 0; i < 300; i++) {

		auto location = glm::vec3(
			ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
			ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
			ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

		vector<glm::vec3> vertices;
		vertices.push_back(location + glm::vec3(-20, -20, 0));
		vertices.push_back(location + glm::vec3( 20, -20, 0));
		vertices.push_back(location + glm::vec3( 20,  20, 0));
		vertices.push_back(location + glm::vec3(-20,  20, 0));

		int face_index = this->face.getNumVertices() - vertices.size();
		int frame_index = this->frame.getNumVertices() - vertices.size();

		this->face.addVertices(vertices);		
		if (face_index >= 0) {

			this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 5);
			this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 5); this->face.addIndex(face_index + 4);

			this->face.addIndex(face_index + 3); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 6);
			this->face.addIndex(face_index + 3); this->face.addIndex(face_index + 6); this->face.addIndex(face_index + 7);

			this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 6);
			this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 6); this->face.addIndex(face_index + 5);

			this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 3); this->face.addIndex(face_index + 7);
			this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 7); this->face.addIndex(face_index + 4);
		}

		this->frame.addVertices(vertices);
		if (frame_index > 0) {

			this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 4);
			this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index + 5);
			this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index + 6);
			this->frame.addIndex(frame_index + 3); this->frame.addIndex(frame_index + 7);
		}
	}

	this->face.addIndex(0); this->face.addIndex(1); this->face.addIndex(2);
	this->face.addIndex(0); this->face.addIndex(2); this->face.addIndex(3);

	this->frame.addIndex(0); this->frame.addIndex(1);
	this->frame.addIndex(1); this->frame.addIndex(2);
	this->frame.addIndex(2); this->frame.addIndex(3);
	this->frame.addIndex(3); this->frame.addIndex(0);

	int face_index = this->face.getNumVertices() - 4;
	int frame_index = this->frame.getNumVertices() - 4;

	this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 2);
	this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 3);

	this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);
	this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index + 2);
	this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index + 3);
	this->frame.addIndex(frame_index + 3); this->frame.addIndex(frame_index + 0);
}

//--------------------------------------------------------------
void ofApp::draw() {
	
	auto target = this->face.getVertex(this->face.getNumVertices() - 1);
	auto camera_location = this->face.getVertex(0) + glm::vec3(0, 0, 660);

	this->cam.setPosition(camera_location);
	this->cam.setTarget(target);
	this->cam.lookAt(target);

	this->cam.begin();

	ofSetColor(39);
	this->face.drawFaces();

	ofSetColor(255);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
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);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

for (int i = 0; i < 300; i++) {

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

vector<glm::vec3> vertices;

vertices.push_back(location + glm::vec3(-20, -20, 0));

vertices.push_back(location + glm::vec3( 20, -20, 0));

vertices.push_back(location + glm::vec3( 20, 20, 0));

vertices.push_back(location + glm::vec3(-20, 20, 0));

int face_index = this->face.getNumVertices() - vertices.size();

int frame_index = this->frame.getNumVertices() - vertices.size();

this->face.addVertices(vertices);

if (face_index >= 0) {

this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 5);

this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 5); this->face.addIndex(face_index + 4);

this->face.addIndex(face_index + 3); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 6);

this->face.addIndex(face_index + 3); this->face.addIndex(face_index + 6); this->face.addIndex(face_index + 7);

this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 6);

this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 6); this->face.addIndex(face_index + 5);

this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 3); this->face.addIndex(face_index + 7);

this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 7); this->face.addIndex(face_index + 4);

}

this->frame.addVertices(vertices);

if (frame_index > 0) {

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 4);

this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index + 5);

this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index + 6);

this->frame.addIndex(frame_index + 3); this->frame.addIndex(frame_index + 7);

}

this->face.addIndex(0); this->face.addIndex(1); this->face.addIndex(2);

this->face.addIndex(0); this->face.addIndex(2); this->face.addIndex(3);

this->frame.addIndex(0); this->frame.addIndex(1);

this->frame.addIndex(1); this->frame.addIndex(2);

this->frame.addIndex(2); this->frame.addIndex(3);

this->frame.addIndex(3); this->frame.addIndex(0);

int face_index = this->face.getNumVertices() - 4;

int frame_index = this->frame.getNumVertices() - 4;

this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 2);

this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 3);

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);

this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index + 2);

this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index + 3);

this->frame.addIndex(frame_index + 3); this->frame.addIndex(frame_index + 0);

}

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

void ofApp::draw() {

auto target = this->face.getVertex(this->face.getNumVertices() - 1);

auto camera_location = this->face.getVertex(0) + glm::vec3(0, 0, 660);

this->cam.setPosition(camera_location);

this->cam.setTarget(target);

this->cam.lookAt(target);

this->cam.begin();

ofSetColor(39);

this->face.drawFaces();

ofSetColor(255);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200318

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年3月17日2020年3月17日

Repelling characters. openFrameworks

[ Video ]

[ About ]
お互いに反発し、一定の速度の間、変化する文字。

Repelling characters.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.h"

class dCharacter {

public:

	dCharacter() {};
	void update(vector<string>& words);

	shared_ptr<ofxBox2dRect> rect;
	int index = 0;
};

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) {};

	int font_size;
	ofTrueTypeFont font;
	vector<string> words;

	ofxBox2d box2d;
	vector<dCharacter> drop_char_list;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.h"

class dCharacter {

public:

dCharacter() {};

void update(vector<string>& words);

shared_ptr<ofxBox2dRect> rect;

int index = 0;

};

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) {};

int font_size;

ofTrueTypeFont font;

vector<string> words;

ofxBox2d box2d;

vector<dCharacter> drop_char_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
void dCharacter::update(vector<string>& words) {

	if (ofGetFrameNum() % 5 && this->rect->getVelocity().length() > 1.5) {

		this->index = ofRandom(words.size());
	}
}

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

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

	ofBackground(0);

	this->font_size = 25;
	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Japanese);
	this->font.load(font_settings);

	this->words = {

		u8"!", u8"#", u8"$", u8"%", u8"&",
		u8"'", u8"(", u8")", u8"*", u8"+",
		u8",", u8"-", u8".", u8"/", u8"0",
		u8"1", u8"2", u8"3", u8"4", u8"5",
		u8"6", u8"7", u8"8", u8"9", u8"0",
		u8":", u8";", u8"<", u8"=", u8">",
		u8"?", u8"@",

		u8"A", u8"B", u8"C", u8"D", u8"E",
		u8"F", u8"G", u8"H", u8"I", u8"J",
		u8"K", u8"L", u8"M", u8"N", u8"O",
		u8"P", u8"Q", u8"R", u8"S", u8"T",
		u8"U", u8"V", u8"W", u8"X", u8"Y", u8"Z",

		u8"a", u8"b", u8"c", u8"d", u8"e",
		u8"f", u8"g", u8"h", u8"i", u8"j",
		u8"k", u8"l", u8"m", u8"n", u8"o",
		u8"p", u8"q", u8"r", u8"s", u8"t",
		u8"u", u8"v", u8"w", u8"x", u8"y", u8"z",

		u8"ｱ", u8"ｲ", u8"ｳ", u8"ｴ", u8"ｵ",
		u8"ｶ", u8"ｷ", u8"ｸ", u8"ｹ", u8"ｺ",
		u8"ｻ", u8"ｼ", u8"ｽ", u8"ｾ", u8"ｿ",
		u8"ﾀ", u8"ﾁ", u8"ﾂ", u8"ﾃ", u8"ﾄ",
		u8"ﾅ", u8"ﾆ", u8"ﾇ", u8"ﾈ", u8"ﾉ",
		u8"ﾊ", u8"ﾋ", u8"ﾌ", u8"ﾍ", u8"ﾎ",
		u8"ﾏ", u8"ﾐ", u8"ﾑ", u8"ﾒ", u8"ﾓ",
		u8"ﾔ", u8"ﾕ", u8"ﾖ",
		u8"ﾗ", u8"ﾘ", u8"ﾙ", u8"ﾚ", u8"ﾛ",
		u8"ﾜ", u8"ｦ", u8"ﾝ",
	};

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

	for (int i = 0; i < 135; i++) {

		auto rect = make_shared<ofxBox2dRect>();
		rect->setPhysics(1.0, 0.63, 0.1);
		rect->setup(this->box2d.getWorld(), ofRandom(ofGetWidth()), ofRandom(ofGetHeight()), this->font_size, this->font_size);

		auto drop_char = dCharacter();
		drop_char.rect = rect;
		drop_char.index = ofRandom(this->words.size());

		this->drop_char_list.push_back(drop_char);
	}
}

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

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

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

			float distance = this->drop_char_list[i].rect->getPosition().distance(this->drop_char_list[k].rect->getPosition());
			if (distance < 30) {

				this->drop_char_list[i].rect->addForce(this->drop_char_list[i].rect->getPosition() - this->drop_char_list[k].rect->getPosition(), 2.5);
				this->drop_char_list[k].rect->addForce(this->drop_char_list[k].rect->getPosition() - this->drop_char_list[i].rect->getPosition(), 2.5);
			}
		}
	}

	for (auto& drop_char : this->drop_char_list) {

		drop_char.update(this->words);
	}

	this->box2d.update();
}

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

	for (auto& drop_char : this->drop_char_list) {

		ofPushMatrix();
		ofTranslate(drop_char.rect->getPosition().x, drop_char.rect->getPosition().y);
		ofRotate(drop_char.rect->getRotation());

		drop_char.rect->getVelocity().length() > 1.5 ? ofSetColor(239) : ofSetColor(89, 239, 89);
		this->font.drawString(this->words[drop_char.index], -10.5, 10);

		ofPopMatrix();
	}
}

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

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

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#include "ofApp.h"

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

void dCharacter::update(vector<string>& words) {

if (ofGetFrameNum() % 5 && this->rect->getVelocity().length() > 1.5) {

this->index = ofRandom(words.size());

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

this->font_size = 25;

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

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Japanese);

this->font.load(font_settings);

this->words = {

u8"!", u8"#", u8"$", u8"%", u8"&",

u8"'", u8"(", u8")", u8"*", u8"+",

u8",", u8"-", u8".", u8"/", u8"0",

u8"1", u8"2", u8"3", u8"4", u8"5",

u8"6", u8"7", u8"8", u8"9", u8"0",

u8":", u8";", u8"<", u8"=", u8">",

u8"?", u8"@",

u8"A", u8"B", u8"C", u8"D", u8"E",

u8"F", u8"G", u8"H", u8"I", u8"J",

u8"K", u8"L", u8"M", u8"N", u8"O",

u8"P", u8"Q", u8"R", u8"S", u8"T",

u8"U", u8"V", u8"W", u8"X", u8"Y", u8"Z",

u8"a", u8"b", u8"c", u8"d", u8"e",

u8"f", u8"g", u8"h", u8"i", u8"j",

u8"k", u8"l", u8"m", u8"n", u8"o",

u8"p", u8"q", u8"r", u8"s", u8"t",

u8"u", u8"v", u8"w", u8"x", u8"y", u8"z",

u8"ｱ", u8"ｲ", u8"ｳ", u8"ｴ", u8"ｵ",

u8"ｶ", u8"ｷ", u8"ｸ", u8"ｹ", u8"ｺ",

u8"ｻ", u8"ｼ", u8"ｽ", u8"ｾ", u8"ｿ",

u8"ﾀ", u8"ﾁ", u8"ﾂ", u8"ﾃ", u8"ﾄ",

u8"ﾅ", u8"ﾆ", u8"ﾇ", u8"ﾈ", u8"ﾉ",

u8"ﾊ", u8"ﾋ", u8"ﾌ", u8"ﾍ", u8"ﾎ",

u8"ﾏ", u8"ﾐ", u8"ﾑ", u8"ﾒ", u8"ﾓ",

u8"ﾔ", u8"ﾕ", u8"ﾖ",

u8"ﾗ", u8"ﾘ", u8"ﾙ", u8"ﾚ", u8"ﾛ",

u8"ﾜ", u8"ｦ", u8"ﾝ",

};

this->box2d.init();

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

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

for (int i = 0; i < 135; i++) {

auto rect = make_shared<ofxBox2dRect>();

rect->setPhysics(1.0, 0.63, 0.1);

rect->setup(this->box2d.getWorld(), ofRandom(ofGetWidth()), ofRandom(ofGetHeight()), this->font_size, this->font_size);

auto drop_char = dCharacter();

drop_char.rect = rect;

drop_char.index = ofRandom(this->words.size());

this->drop_char_list.push_back(drop_char);

}

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

void ofApp::update() {

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

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

float distance = this->drop_char_list[i].rect->getPosition().distance(this->drop_char_list[k].rect->getPosition());

if (distance < 30) {

this->drop_char_list[i].rect->addForce(this->drop_char_list[i].rect->getPosition() - this->drop_char_list[k].rect->getPosition(), 2.5);

this->drop_char_list[k].rect->addForce(this->drop_char_list[k].rect->getPosition() - this->drop_char_list[i].rect->getPosition(), 2.5);

}

for (auto& drop_char : this->drop_char_list) {

drop_char.update(this->words);

}

this->box2d.update();

}

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

void ofApp::draw() {

for (auto& drop_char : this->drop_char_list) {

ofPushMatrix();

ofTranslate(drop_char.rect->getPosition().x, drop_char.rect->getPosition().y);

ofRotate(drop_char.rect->getRotation());

drop_char.rect->getVelocity().length() > 1.5 ? ofSetColor(239) : ofSetColor(89, 239, 89);

this->font.drawString(this->words[drop_char.index], -10.5, 10);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200317

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2020年3月
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