box2d – ページ 10 – プログラミング de 落描き

2018年11月28日2018年11月28日

Speaker. openFrameworks

[ Video ]

[ About ]
Day 28 Speaker

絵文字と物理エンジン(Box2d)の相性が良き

Pair speaker.

[ 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) {};

	int size;
	ofTrueTypeFont font;

	ofxBox2d box2d;

	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<int> note_types;
	vector<ofColor> colors;
	vector<float> lifes;

	bool left;
	bool right;
};

#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) {};

int size;

ofTrueTypeFont font;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<int> note_types;

vector<ofColor> colors;

vector<float> lifes;

bool left;

bool right;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetCircleResolution(30);
	ofSetLineWidth(2);
	//ofNoFill();

	this->size = 32;
	ofTrueTypeFontSettings font_settings("fonts/EmojiSymbols-Regular.ttf", this->size);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Emoji);
	this->font.load(font_settings);

	this->box2d.init();
	this->box2d.setGravity(0, 5);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();


}

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

	this->left = false;
	this->right = false;

	if (ofRandom(100) > 85) {

		if (ofRandom(2) > 1) {

			this->left = true;
		}
		else {

			this->right = true;
		}

		float radius = this->size * 0.5;
		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(1.0, 0.63, 0.1);
		circle->setup(this->box2d.getWorld(), this->left ? ofGetWidth() * 0.25 : ofGetWidth() * 0.75, ofGetHeight() * 0.5 + 100, radius);
		circle->addForce(ofVec2f(ofRandom(-10, 10), ofRandom(-10, 10)), 150.0);
		this->circles.push_back(circle);

		this->note_types.push_back(ofRandom(2));

		ofColor color;
		color.setHsb(ofRandom(255), 255, 230);
		this->colors.push_back(color);

		this->lifes.push_back(255);
	}

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

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

			this->circles[i].get()->destroy();
			this->circles.erase(this->circles.begin() + i);
			this->note_types.erase(this->note_types.begin() + i);
			this->colors.erase(this->colors.begin() + i);
			this->lifes.erase(this->lifes.begin() + i);
		}
	}

	this->box2d.update();
}

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

	// Draw Speaker Left
	ofPushMatrix();
	ofTranslate(ofGetWidth() * 0.25, ofGetHeight() * 0.5);

	ofSetColor(39);
	ofDrawRectangle(-150, -300, 300, 600);
	ofSetColor(139);
	ofDrawCircle(50, -100, 50);
	this->left ? ofDrawCircle(0, 100, 100) : ofDrawCircle(0, 100, 110);

	ofPopMatrix();

	// Draw Speaker Right
	ofPushMatrix();
	ofTranslate(ofGetWidth() * 0.75, ofGetHeight() * 0.5);

	ofSetColor(39);
	ofDrawRectangle(-150, -300, 300, 600);
	ofSetColor(139);
	ofDrawCircle(-50, -100, 50);
	this->right ? ofDrawCircle(0, 100, 100) : ofDrawCircle(0, 100, 110);

	ofPopMatrix();

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

		ofPushMatrix();
		ofTranslate(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);
		ofRotate(this->circles[i]->getRotation());

		ofSetColor(this->colors[i], this->lifes[i] + 32);
		this->note_types[i] == 0 ? this->font.drawString(u8"🎵", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius()) : this->font.drawString(u8"🎶", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius());

		ofPopMatrix();
	}

}

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

ofSetCircleResolution(30);

ofSetLineWidth(2);

//ofNoFill();

this->size = 32;

ofTrueTypeFontSettings font_settings("fonts/EmojiSymbols-Regular.ttf", this->size);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Emoji);

this->font.load(font_settings);

this->box2d.init();

this->box2d.setGravity(0, 5);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

this->left = false;

this->right = false;

if (ofRandom(100) > 85) {

if (ofRandom(2) > 1) {

this->left = true;

}

else {

this->right = true;

}

float radius = this->size * 0.5;

auto circle = make_shared<ofxBox2dCircle>();

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

circle->setup(this->box2d.getWorld(), this->left ? ofGetWidth() * 0.25 : ofGetWidth() * 0.75, ofGetHeight() * 0.5 + 100, radius);

circle->addForce(ofVec2f(ofRandom(-10, 10), ofRandom(-10, 10)), 150.0);

this->circles.push_back(circle);

this->note_types.push_back(ofRandom(2));

ofColor color;

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

this->colors.push_back(color);

this->lifes.push_back(255);

}

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

this->lifes[i]--;

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

this->circles[i].get()->destroy();

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

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

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

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

}

this->box2d.update();

}

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

void ofApp::draw() {

// Draw Speaker Left

ofPushMatrix();

ofTranslate(ofGetWidth() * 0.25, ofGetHeight() * 0.5);

ofSetColor(39);

ofDrawRectangle(-150, -300, 300, 600);

ofSetColor(139);

ofDrawCircle(50, -100, 50);

this->left ? ofDrawCircle(0, 100, 100) : ofDrawCircle(0, 100, 110);

ofPopMatrix();

// Draw Speaker Right

ofPushMatrix();

ofTranslate(ofGetWidth() * 0.75, ofGetHeight() * 0.5);

ofSetColor(39);

ofDrawRectangle(-150, -300, 300, 600);

ofSetColor(139);

ofDrawCircle(-50, -100, 50);

this->right ? ofDrawCircle(0, 100, 100) : ofDrawCircle(0, 100, 110);

ofPopMatrix();

// Draw Note

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

ofPushMatrix();

ofTranslate(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);

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

ofSetColor(this->colors[i], this->lifes[i] + 32);

this->note_types[i] == 0 ? this->font.drawString(u8"🎵", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius()) : this->font.drawString(u8"🎶", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius());

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181128

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2018年11月20日2018年11月20日

Socks. openFrameworks

[ Video ]

[ About ]
Day 20 Socks

靴下からパーティクルがっ！靴下からっ！パーティクルがっ！ OpenCVでフレーム差分を検知、物理エンジンはofxBox2dです。

I use OpenCV to detect frame difference and physics engine is ofxBox2d.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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 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<float> circles_life;
	vector<ofColor> circles_color;

	cv::VideoCapture cap;
	ofVec2f cap_size;
	cv::Mat pre_frame;
	cv::Mat frame;
	ofImage image;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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 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<float> circles_life;

vector<ofColor> circles_color;

cv::VideoCapture cap;

ofVec2f cap_size;

cv::Mat pre_frame;

cv::Mat frame;

ofImage image;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(30);

	this->cap.open("D:\\video\\image41.mp4");
	this->cap_size = ofVec2f(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT));
	this->cap_size *= 0.1;

	this->image.allocate(this->cap_size.x, this->cap_size.y, OF_IMAGE_COLOR);
	this->frame = cv::Mat(this->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);
}

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

	cv::Mat src;
	this->cap >> src;

	if (src.empty()) {

		this->cap.set(CV_CAP_PROP_POS_FRAMES, 1);
		return;
	}

	cv::cvtColor(src, src, cv::COLOR_BGR2RGB);
	cv::resize(src, this->frame, cv::Size(this->cap_size.x, this->cap_size.y));

	float span = 15;

	if (ofGetFrameNum() > 1) {

		cv::Mat gap = this->pre_frame - this->frame;

		for (int y = 0; y < gap.rows; y += span) {

			cv::Vec3b* gap_value = gap.ptr<cv::Vec3b>(y, 0);
			cv::Vec3b* color_value = this->frame.ptr<cv::Vec3b>(y, 0);
			for (int x = 0; x < gap.cols; x += span) {

				cv::Vec3b gv = gap_value[x];
				cv::Vec3b cv = color_value[x];
				if ((gv[0] + gv[1] + gv[2]) > 32 && cv[0] < 100) {

					auto circle = make_shared<ofxBox2dCircle>();
					circle.get()->setPhysics(3.0, 0.5, 0.1);
					circle.get()->setup(this->box2d.getWorld(), x + ofGetWidth() / 2 - this->image.getWidth() / 2 + ofRandom(-span / 2, span / 2), y + 100 + ofRandom(-span / 2, span / 2), span / 3);
					this->circles.push_back(move(circle));

					this->circles_life.push_back(255);

					ofColor c;
					c.setHsb(ofRandom(255), 200, 255);
					this->circles_color.push_back(c);

				}
			}
		}
	}

	this->frame.copyTo(this->pre_frame);

	this->image.update();
	this->box2d.update();
}

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

	ofSetColor(255);
	this->image.draw(ofGetWidth() / 2 - this->image.getWidth() / 2, 100);

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

		this->circles_life[i] -= 4;
		if (this->circles_life[i] < 0) {

			this->circles[i].get()->destroy();
			this->circles.erase(this->circles.begin() + i);
			this->circles_life.erase(this->circles_life.begin() + i);
			this->circles_color.erase(this->circles_color.begin() + i);
		}
		else {

			ofSetColor(this->circles_color[i]);
			ofDrawCircle(this->circles[i].get()->getPosition(), this->circles[i].get()->getRadius());
			ofDrawLine(this->circles[i].get()->getPosition(), this->circles[i].get()->getPosition() - this->circles[i].get()->getVelocity());
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

this->box2d.init();

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

this->box2d.createBounds();

this->box2d.setFPS(30);

this->cap.open("D:\\video\\image41.mp4");

this->cap_size = ofVec2f(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT));

this->cap_size *= 0.1;

this->image.allocate(this->cap_size.x, this->cap_size.y, OF_IMAGE_COLOR);

this->frame = cv::Mat(this->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

}

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

void ofApp::update() {

cv::Mat src;

this->cap >> src;

if (src.empty()) {

this->cap.set(CV_CAP_PROP_POS_FRAMES, 1);

return;

}

cv::cvtColor(src, src, cv::COLOR_BGR2RGB);

cv::resize(src, this->frame, cv::Size(this->cap_size.x, this->cap_size.y));

float span = 15;

if (ofGetFrameNum() > 1) {

cv::Mat gap = this->pre_frame - this->frame;

for (int y = 0; y < gap.rows; y += span) {

cv::Vec3b* gap_value = gap.ptr<cv::Vec3b>(y, 0);

cv::Vec3b* color_value = this->frame.ptr<cv::Vec3b>(y, 0);

for (int x = 0; x < gap.cols; x += span) {

cv::Vec3b gv = gap_value[x];

cv::Vec3b cv = color_value[x];

if ((gv[0] + gv[1] + gv[2]) > 32 && cv[0] < 100) {

auto circle = make_shared<ofxBox2dCircle>();

circle.get()->setPhysics(3.0, 0.5, 0.1);

circle.get()->setup(this->box2d.getWorld(), x + ofGetWidth() / 2 - this->image.getWidth() / 2 + ofRandom(-span / 2, span / 2), y + 100 + ofRandom(-span / 2, span / 2), span / 3);

this->circles.push_back(move(circle));

this->circles_life.push_back(255);

ofColor c;

c.setHsb(ofRandom(255), 200, 255);

this->circles_color.push_back(c);

}

this->frame.copyTo(this->pre_frame);

this->image.update();

this->box2d.update();

}

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

void ofApp::draw() {

ofSetColor(255);

this->image.draw(ofGetWidth() / 2 - this->image.getWidth() / 2, 100);

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

this->circles_life[i] -= 4;

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

this->circles[i].get()->destroy();

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

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

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

}

else {

ofSetColor(this->circles_color[i]);

ofDrawCircle(this->circles[i].get()->getPosition(), this->circles[i].get()->getRadius());

ofDrawLine(this->circles[i].get()->getPosition(), this->circles[i].get()->getPosition() - this->circles[i].get()->getVelocity());

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181120

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2018年11月10日2018年11月19日

Apple. openFrameworks

[ Video ]

[ About ]
Day 10 Apple

重力で落ちるリンゴ達。リンゴは絵文字🍎、物理エンジンはofxBox2dを使いました。

Apple falling with gravity. Apple is Emoji🍎, And physics engine is ofxBox2d.

[ 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) {};

	ofTrueTypeFont font;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circles;
};

#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) {};

ofTrueTypeFont font;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(239, 39, 39);

	ofTrueTypeFontSettings font_settings("fonts/EmojiSymbols-Regular.ttf", 32);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Emoji);
	this->font.load(font_settings);

	this->box2d.init();
	this->box2d.setGravity(0, 5);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

}

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

	if (ofGetFrameNum() % 10 == 0) {

		float radius = 16;
		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(1.0, 0.63, 0.1);
		circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.5 - 50, ofGetWidth() * 0.5 + 50), 15, radius);
		this->circles.push_back(circle);
	}

	this->box2d.update();
}

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

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

		ofPushMatrix();
		ofTranslate(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);
		ofRotate(this->circles[i]->getRotation());

		this->font.drawString(u8"🍎", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius());

		ofPopMatrix();
	}
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(239, 39, 39);

ofTrueTypeFontSettings font_settings("fonts/EmojiSymbols-Regular.ttf", 32);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Emoji);

this->font.load(font_settings);

this->box2d.init();

this->box2d.setGravity(0, 5);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

if (ofGetFrameNum() % 10 == 0) {

float radius = 16;

auto circle = make_shared<ofxBox2dCircle>();

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

circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.5 - 50, ofGetWidth() * 0.5 + 50), 15, radius);

this->circles.push_back(circle);

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofPushMatrix();

ofTranslate(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);

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

this->font.drawString(u8"🍎", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius());

ofPopMatrix();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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6	7	8	9	10	11	12
13	14	15	16	17	18	19
20	21	22	23	24	25	26
27	28	29	30	31