box2d – ページ 20 – プログラミング de 落描き

2017年12月17日2017年12月15日

Insta20171216

[ Video ]

[ About ]
花火。
HA NA BI.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofFbo.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;

	ofFbo fbo;

	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<float> circles_size;
	vector<ofColor> circles_color;
	vector<float> circles_life;

};

#pragma once

#include "ofMain.h"

#include "ofFbo.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;

ofFbo fbo;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<float> circles_size;

vector<ofColor> circles_color;

vector<float> circles_life;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetColor(255);
	ofSetLineWidth(3);

	this->box2d.init();
	this->box2d.setGravity(0, 15);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

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

}

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

	for (int i = this->circles.size() - 1; i > -1; i--) {
		this->circles_life[i] -= 1.5;

		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);
		}
	}

	this->box2d.update();

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

	for (int i = 0; i < this->circles.size(); i++) {
		ofSetColor(this->circles_color[i]);
		//ofDrawCircle(this->circles[i].get()->getPosition(), this->circles_size[i]);
		ofDrawLine(this->circles[i].get()->getPosition(), this->circles[i].get()->getPosition() - this->circles[i].get()->getVelocity());

	}

	this->fbo.end();
}

//--------------------------------------------------------------
void ofApp::draw() {
	this->fbo.draw(0, 0);
}

//--------------------------------------------------------------
void ofApp::mousePressed(int x, int y, int button) {
	float radius = 10;
	for (int i = 0; i < 5; i++) {
		float color_value = ofRandom(256);
		for (int deg = 0; deg < 360; deg += 10) {
			float tmp_x = radius * cos(deg * DEG_TO_RAD);
			float tmp_y = radius * sin(deg * DEG_TO_RAD);

			this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));
			this->circles.back().get()->setPhysics(3.0, 0.5, 0.1);
			this->circles.back().get()->setup(this->box2d.getWorld(), x + tmp_x, y + tmp_y, 4);
			this->circles.back().get()->addForce(ofVec2f(tmp_x, tmp_y), 8.0);

			ofColor circle_color;
			circle_color.setHsb(color_value, 255, 255);
			this->circles_color.push_back(circle_color);

			this->circles_life.push_back(255);
		}

		radius += 10;
	}
}

//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetColor(255);

ofSetLineWidth(3);

this->box2d.init();

this->box2d.setGravity(0, 15);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

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

}

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

void ofApp::update() {

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

this->circles_life[i] -= 1.5;

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);

}

this->box2d.update();

this->fbo.begin();

ofFill();

ofClear(0);

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

ofSetColor(this->circles_color[i]);

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

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

}

this->fbo.end();

}

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

void ofApp::draw() {

this->fbo.draw(0, 0);

}

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

void ofApp::mousePressed(int x, int y, int button) {

float radius = 10;

for (int i = 0; i < 5; i++) {

float color_value = ofRandom(256);

for (int deg = 0; deg < 360; deg += 10) {

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

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

this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));

this->circles.back().get()->setPhysics(3.0, 0.5, 0.1);

this->circles.back().get()->setup(this->box2d.getWorld(), x + tmp_x, y + tmp_y, 4);

this->circles.back().get()->addForce(ofVec2f(tmp_x, tmp_y), 8.0);

ofColor circle_color;

circle_color.setHsb(color_value, 255, 255);

this->circles_color.push_back(circle_color);

this->circles_life.push_back(255);

}

radius += 10;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20171216

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2017年11月1日2017年11月1日

Insta20171031

[ Video ]

[ About ]
花火。

fireworks.

[ 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<float> circles_life;
	vector<ofColor> circles_color;
};

#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<float> circles_life;

vector<ofColor> circles_color;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetCircleResolution(32);

	this->box2d.init();
	this->box2d.setGravity(0, 20);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();
}

//--------------------------------------------------------------
void ofApp::update() {
	for (int i = this->circles.size() - 1; i > -1; i--) {
		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);
		}
	}

	this->box2d.update();
}

//--------------------------------------------------------------
void ofApp::draw() {
	for (int i = 0; i < this->circles.size(); i++) {
		ofSetColor(this->circles_color[i], this->circles_life[i]);
		ofDrawCircle(this->circles[i].get()->getPosition().x, this->circles[i].get()->getPosition().y, 8);

		this->circles_life[i] -= 1;
	}
}

//--------------------------------------------------------------
void ofApp::mousePressed(int x, int y, int button) {
	float radius = 10;
	for (int i = 0; i < 5; i++) {
		float color_value = ofRandom(256);
		for (int deg = 0; deg < 360; deg += 10) {
			float tmp_x = radius * cos(deg * DEG_TO_RAD);
			float tmp_y = radius * sin(deg * DEG_TO_RAD);

			this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));
			this->circles.back().get()->setPhysics(3.0, 0.5, 0.1);
			this->circles.back().get()->setup(this->box2d.getWorld(), x + tmp_x, y + tmp_y, 8);
			this->circles.back().get()->addForce(ofVec2f(tmp_x, tmp_y), 16.0);

			this->circles_life.push_back(255);

			ofColor circle_color;
			circle_color.setHsb(color_value, 255, 255);
			this->circles_color.push_back(circle_color);
		}

		radius += 10;
	}
}

//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(1920, 1080, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetCircleResolution(32);

this->box2d.init();

this->box2d.setGravity(0, 20);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

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

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);

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofSetColor(this->circles_color[i], this->circles_life[i]);

ofDrawCircle(this->circles[i].get()->getPosition().x, this->circles[i].get()->getPosition().y, 8);

this->circles_life[i] -= 1;

}

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

void ofApp::mousePressed(int x, int y, int button) {

float radius = 10;

for (int i = 0; i < 5; i++) {

float color_value = ofRandom(256);

for (int deg = 0; deg < 360; deg += 10) {

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

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

this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));

this->circles.back().get()->setPhysics(3.0, 0.5, 0.1);

this->circles.back().get()->setup(this->box2d.getWorld(), x + tmp_x, y + tmp_y, 8);

this->circles.back().get()->addForce(ofVec2f(tmp_x, tmp_y), 16.0);

this->circles_life.push_back(255);

ofColor circle_color;

circle_color.setHsb(color_value, 255, 255);

this->circles_color.push_back(circle_color);

}

radius += 10;

}

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

int main() {

ofSetupOpenGL(1920, 1080, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20171031

[ほしいものリスト]
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[ Sponsor Link ]

2017年10月28日2017年12月5日

Insta20171027

[ Video ]

[ About ]
Keybord入力からオブジェクトを生成するようにしてみました。
内容は自己紹介。

Object creation by keybord input.
Content self-introduction.

[ 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) {};

	ofTrueTypeFont font;
	std::string moji;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dRect>> rects;
	vector<ofColor> rects_color;
	ofxBox2dEdge eage;

	float moji_x, moji_y;
};

#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) {};

ofTrueTypeFont font;

std::string moji;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dRect>> rects;

vector<ofColor> rects_color;

ofxBox2dEdge eage;

float moji_x, moji_y;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

	ofSetColor(0);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50);
	this->moji = "";

	this->box2d.init();
	this->box2d.setGravity(0, 10);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();
		
	this->eage = ofxBox2dEdge();
	this->eage.addVertex(ofVec2f(200, ofGetHeight() / 2));
	this->eage.addVertex(ofVec2f(ofGetWidth() - 200, ofGetHeight() / 2));
	this->eage.create(this->box2d.getWorld());

	this->moji_x = 25;
	this->moji_y = 50;
}

//--------------------------------------------------------------
void ofApp::update() {
	this->box2d.update();
}

//--------------------------------------------------------------
void ofApp::draw() {
	for (int i = 0; i < this->moji.size(); i++) {
		ofPushMatrix();
		ofTranslate(this->rects[i].get()->getPosition().x, this->rects[i].get()->getPosition().y);
		ofRotate(this->rects[i].get()->getRotation());
		ofSetColor(this->rects_color[i]);
		this->font.drawString((this->moji.substr(i, 1)), -this->font.stringWidth(this->moji.substr(i, 1)) / 2, this->font.stringHeight(this->moji.substr(i, 1)) / 2);
		ofPopMatrix();
	}

	this->eage.draw();
}

//--------------------------------------------------------------
void ofApp::keyPressed(int key) {

	if (this->moji_x > ofGetWidth()) {
		this->moji_x = 25;
	}

	// Enter
	if (key == 13) {
		this->moji_x = 25;
	}

	// Space
	if (key == 32) {
		this->moji_x += 25;
	}

	// Character
	if (key >= 32 && key < 127) {
		char key_c = (char)key;
		string new_moji{ key_c };
		this->moji += new_moji;
		this->rects.push_back(shared_ptr<ofxBox2dRect>(new ofxBox2dRect));
		this->rects.back().get()->setPhysics(3.0, 0.5, 0.1);
		this->rects.back().get()->setup(this->box2d.getWorld(), this->moji_x, this->moji_y, this->font.stringWidth(new_moji), this->font.stringHeight(new_moji));

		ofColor rect_color;
		rect_color.setHsb(ofGetFrameNum() % 255, 255, 255);
		this->rects_color.push_back(rect_color);

		this->moji_x += this->font.stringWidth(new_moji) * 1.1;
	}
	
	
}

//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

ofSetColor(0);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50);

this->moji = "";

this->box2d.init();

this->box2d.setGravity(0, 10);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

this->eage = ofxBox2dEdge();

this->eage.addVertex(ofVec2f(200, ofGetHeight() / 2));

this->eage.addVertex(ofVec2f(ofGetWidth() - 200, ofGetHeight() / 2));

this->eage.create(this->box2d.getWorld());

this->moji_x = 25;

this->moji_y = 50;

}

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

void ofApp::update() {

this->box2d.update();

}

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

void ofApp::draw() {

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

ofPushMatrix();

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

ofRotate(this->rects[i].get()->getRotation());

ofSetColor(this->rects_color[i]);

this->font.drawString((this->moji.substr(i, 1)), -this->font.stringWidth(this->moji.substr(i, 1)) / 2, this->font.stringHeight(this->moji.substr(i, 1)) / 2);

ofPopMatrix();

}

this->eage.draw();

}

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

void ofApp::keyPressed(int key) {

if (this->moji_x > ofGetWidth()) {

this->moji_x = 25;

}

// Enter

if (key == 13) {

this->moji_x = 25;

}

// Space

if (key == 32) {

this->moji_x += 25;

}

// Character

if (key >= 32 && key < 127) {

char key_c = (char)key;

string new_moji{ key_c };

this->moji += new_moji;

this->rects.push_back(shared_ptr<ofxBox2dRect>(new ofxBox2dRect));

this->rects.back().get()->setPhysics(3.0, 0.5, 0.1);

this->rects.back().get()->setup(this->box2d.getWorld(), this->moji_x, this->moji_y, this->font.stringWidth(new_moji), this->font.stringHeight(new_moji));

ofColor rect_color;

rect_color.setHsb(ofGetFrameNum() % 255, 255, 255);

this->rects_color.push_back(rect_color);

this->moji_x += this->font.stringWidth(new_moji) * 1.1;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20171027

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