ofFbo – プログラミング de 落描き

2019年6月13日2019年6月13日

Line and shadow. openFrameworks

[ Video ]

[ About ]
線と影

Line and shadow.

[ 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 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) {};

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

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

#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 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) {};

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

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	
	this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);
	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->fbo.begin();
	ofClear(0);

	for (int x = 200; x < ofGetWidth(); x += 360) {

		ofPushMatrix();
		ofTranslate(x, ofGetHeight() * 0.5 - 5);

		int len = 300;
		for (int i = 0; i < 8; i++) {

			vector<glm::vec2> vertices;
			int width = ofRandom(1, 3);

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

			int param_start = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.003), 0, 1, 0, 100);
			for (int param = param_start; param <= param_start + width; param++) {

				vertices.push_back(this->make_point(len, param));
			}

			int tmp_param_start = param_start + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.003), 0, 1, 25, 50);
			for (int param = tmp_param_start; param <= tmp_param_start + width; param++) {

				vertices.push_back(this->make_point(len, param));
			}

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

			ofNoFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}

		ofPopMatrix();
	}

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

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);
}

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

	ofSetColor(255, 192);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(-5, -5);

	ofSetColor(255);
	this->fbo.draw(-25, -25);
}

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

ofSetLineWidth(2);

this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);

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->fbo.begin();

ofClear(0);

for (int x = 200; x < ofGetWidth(); x += 360) {

ofPushMatrix();

ofTranslate(x, ofGetHeight() * 0.5 - 5);

int len = 300;

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

vector<glm::vec2> vertices;

int width = ofRandom(1, 3);

float noise_seed_1 = ofRandom(1000);

float noise_seed_2 = ofRandom(1000);

int param_start = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.003), 0, 1, 0, 100);

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

vertices.push_back(this->make_point(len, param));

}

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

for (int param = tmp_param_start; param <= tmp_param_start + width; param++) {

vertices.push_back(this->make_point(len, param));

}

ofFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

ofPopMatrix();

}

this->fbo.end();

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

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);

}

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

void ofApp::draw() {

ofSetColor(255, 192);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(-5, -5);

ofSetColor(255);

this->fbo.draw(-25, -25);

}

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

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/Insta20190613

[ほしいものリスト]
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2019年3月26日2019年3月26日

Overlap and invert. openFrameworks

[ Video ]

[ About ]
重なると反転

Overlap and invert.

[ 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) {};

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

	ofShader shader;
	ofFbo tex1;
	ofFbo tex2;
};

#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) {};

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

ofShader shader;

ofFbo tex1;

ofFbo tex2;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofSetColor(0);

	this->shader.load("shader/shader.vert", "shader/shader.frag");
	this->tex1.allocate(ofGetWidth(), ofGetHeight());
	this->tex2.allocate(ofGetWidth(), ofGetHeight());

	this->tex1.begin();
	ofClear(0);

	ofBeginShape();
	for (int deg = 0; deg < 360; deg += 5) {

		ofVertex(250 * cos(deg * DEG_TO_RAD) + ofGetWidth() * 0.5, 250 * sin(deg * DEG_TO_RAD) + ofGetHeight() * 0.5);
	}
	ofEndShape();

	this->tex1.end();
}

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

	ofSeedRandom(39);

	this->tex2.begin();
	ofClear(0);

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

	int size = ofGetWidth();
	for (int i = 0; i < 8; i++) {
			
		int line_param = ofRandom(1, 5);
		int start_param = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005) * 100;
		vector<glm::vec2> vertices;
		for (int param = start_param; param < start_param + line_param; param++) {

			vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));
		}

		start_param += 50 + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -15, 15);
		for (int param = start_param; param < start_param + line_param; param++) {

			vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));
		}

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);
	}

	this->tex2.end();
}

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

	ofFill();
	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniformTexture("tex1", this->tex1.getTexture(), 1);
	this->shader.setUniformTexture("tex2", this->tex2.getTexture(), 2);

	ofDrawRectangle(glm::vec2(0, 0), ofGetWidth(), ofGetHeight());

	this->shader.end();
}

//--------------------------------------------------------------
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() {

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(720, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

ofSetColor(0);

this->shader.load("shader/shader.vert", "shader/shader.frag");

this->tex1.allocate(ofGetWidth(), ofGetHeight());

this->tex2.allocate(ofGetWidth(), ofGetHeight());

this->tex1.begin();

ofClear(0);

ofBeginShape();

for (int deg = 0; deg < 360; deg += 5) {

ofVertex(250 * cos(deg * DEG_TO_RAD) + ofGetWidth() * 0.5, 250 * sin(deg * DEG_TO_RAD) + ofGetHeight() * 0.5);

}

ofEndShape();

this->tex1.end();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->tex2.begin();

ofClear(0);

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

int size = ofGetWidth();

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

int line_param = ofRandom(1, 5);

int start_param = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005) * 100;

vector<glm::vec2> vertices;

for (int param = start_param; param < start_param + line_param; param++) {

vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));

}

start_param += 50 + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -15, 15);

for (int param = start_param; param < start_param + line_param; param++) {

vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));

}

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

this->tex2.end();

}

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

void ofApp::draw() {

ofFill();

this->shader.begin();

this->shader.setUniform1f("time", ofGetElapsedTimef());

this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());

this->shader.setUniformTexture("tex1", this->tex1.getTexture(), 1);

this->shader.setUniformTexture("tex2", this->tex2.getTexture(), 2);

ofDrawRectangle(glm::vec2(0, 0), ofGetWidth(), ofGetHeight());

this->shader.end();

}

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

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() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(720, 720);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;

void main(){
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

void main(){

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

uniform float time;
uniform vec2 resolution;
uniform sampler2DRect tex1;
uniform sampler2DRect tex2;

in vec2 texCoordVarying;
out vec4 outputColor;

void main() {

  vec4 t1 = texture(tex1, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));
  vec4 t2 = texture(tex2, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));
  
  vec4 c;
  if(t1 == t2){
  	
  	c = vec4(vec3(0.937), 1.0);
  }else{
  
  	c = vec4(vec3(0.153), 1.0);
  }
  
  outputColor = c;
}

#version 150

uniform float time;

uniform vec2 resolution;

uniform sampler2DRect tex1;

uniform sampler2DRect tex2;

in vec2 texCoordVarying;

out vec4 outputColor;

void main() {

vec4 t1 = texture(tex1, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));

vec4 t2 = texture(tex2, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));

vec4 c;

if(t1 == t2){

c = vec4(vec3(0.937), 1.0);

}else{

c = vec4(vec3(0.153), 1.0);

}

outputColor = c;

}

[ Link ]
https://github.com/junkiyoshi/Insta20190326

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2018年1月25日2018年1月25日

Particleで輪郭を描く openFrameworks OpenCV

[ Video ]

[ About ]
OpenCVのエッジ処理で輪郭を抽出して、Particleと線を結ぶようにしました。Mac Book Proの友情出演もありです。

そしてエンコ泣かせ。YouTubeだとつぶれていますが、思ったよりパーリーピーポー感でて良い感じです。

[ Source ]

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

#include "opencv2/opencv.hpp"

#include "Particle.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) {};

	ofFbo fbo;

	cv::VideoCapture cap;
	cv::Size cap_size;

	cv::Mat frame;
	ofImage image;

	vector<unique_ptr<Particle>> particles;
};

#pragma once

#include "ofMain.h"

#include "ofFbo.h"

#include "opencv2/opencv.hpp"

#include "Particle.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) {};

ofFbo fbo;

cv::VideoCapture cap;

cv::Size cap_size;

cv::Mat frame;

ofImage image;

vector<unique_ptr<Particle>> particles;

};

#include "ofApp.h"

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

	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->cap.open(1);

	this->cap_size = cv::Size(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT));
	ofSetFrameRate(this->cap.get(CV_CAP_PROP_FPS));

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_GRAYSCALE);
	this->frame = cv::Mat(this->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC1, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	for (int i = 0; i < 2048; i++) {

		unique_ptr<Particle> particle(new Particle());
		this->particles.push_back(std::move(particle));
	}

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

//--------------------------------------------------------------
void ofApp::update() {
	
	cv::Mat src;
	this->cap >> src;
	if (src.empty()) { 

		return;
	}
	cv::Canny(src, this->frame, 50, 200);
	cv::flip(this->frame, this->frame, 1);

	vector<ofVec2f> edges;
	for (int y = 0; y < this->frame.rows; y += 3) {

		for (int x = 0; x < this->frame.cols; x += 3) {

			if (this->frame.at<unsigned char>(y, x) > 0) {

				edges.push_back(ofVec2f(x, y));
			}
		}
	}

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

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

		this->particles[i]->update();

		for (ofVec2f edge : edges) {

			float distance = this->particles[i]->get_location().distance(edge);
			if (distance < 30) {

				ofSetColor(this->particles[i]->get_body_color(), ofMap(distance, 0, 30, 255, 0));
				ofDrawLine(this->particles[i]->get_location(), edge);
			}
		}
	}
	
	//this->image.update();
	//this->image.draw(0, 0);

	this->fbo.end();
}

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

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

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

	ofSetupOpenGL(640, 480, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofBackground(0);

ofSetWindowTitle("Insta");

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->cap.open(1);

this->cap_size = cv::Size(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT));

ofSetFrameRate(this->cap.get(CV_CAP_PROP_FPS));

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_GRAYSCALE);

this->frame = cv::Mat(this->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC1, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

for (int i = 0; i < 2048; i++) {

unique_ptr<Particle> particle(new Particle());

this->particles.push_back(std::move(particle));

}

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

}

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

void ofApp::update() {

cv::Mat src;

this->cap >> src;

if (src.empty()) {

return;

}

cv::Canny(src, this->frame, 50, 200);

cv::flip(this->frame, this->frame, 1);

vector<ofVec2f> edges;

for (int y = 0; y < this->frame.rows; y += 3) {

for (int x = 0; x < this->frame.cols; x += 3) {

if (this->frame.at<unsigned char>(y, x) > 0) {

edges.push_back(ofVec2f(x, y));

}

this->fbo.begin();

ofClear(0);

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

this->particles[i]->update();

for (ofVec2f edge : edges) {

float distance = this->particles[i]->get_location().distance(edge);

if (distance < 30) {

ofSetColor(this->particles[i]->get_body_color(), ofMap(distance, 0, 30, 255, 0));

ofDrawLine(this->particles[i]->get_location(), edge);

}

//this->image.update();

//this->image.draw(0, 0);

this->fbo.end();

}

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

void ofApp::draw() {

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

}

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

int main() {

ofSetupOpenGL(640, 480, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Particle
{
public:
	Particle();
	~Particle() {};

	void apply_force(ofVec2f force);
	void update();
	void draw();

	void set_color(ofColor body_color);
	ofVec2f get_location();
	ofColor get_body_color();

private:
	ofVec2f location;
	ofVec2f velocity;
	ofVec2f acceleration;
	ofColor body_color;
};

#pragma once

#include "ofMain.h"

class Particle

{

public:

Particle();

~Particle() {};

void apply_force(ofVec2f force);

void update();

void draw();

void set_color(ofColor body_color);

ofVec2f get_location();

ofColor get_body_color();

private:

ofVec2f location;

ofVec2f velocity;

ofVec2f acceleration;

ofColor body_color;

};

#include "Particle.h"

Particle::Particle() {

	this->location = ofVec2f(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));
	this->velocity = ofVec2f(ofRandom(-3, 3), ofRandom(-3, 3));
	this->velocity = this->velocity.normalized() * ofRandom(3, 5);
	this->acceleration = ofVec2f();
	this->body_color.setHsb(ofRandom(255), 255, 255);
}

void Particle::apply_force(ofVec2f force) {

	this->acceleration += force;
}

void Particle::update() {

	this->acceleration += this->velocity;
	this->location += this->acceleration;
	this->acceleration *= 0;

	if (this->location.x < 0) {

		this->location.x = 0;
		this->velocity.x *= -1;
	}
	else if (this->location.x > ofGetWidth()) {

		this->location.x = ofGetWidth();
		this->velocity.x *= -1;
	}

	if (this->location.y < 0) {

		this->location.y = 0;
		this->velocity.y *= -1;
	}
	else if (this->location.y > ofGetHeight()) {

		this->location.y = ofGetHeight();
		this->velocity.y *= -1;
	}
}

void Particle::draw() {

	ofSetColor(this->body_color);
	ofDrawCircle(this->location, 3);
}

void Particle::set_color(ofColor body_color) {

	this->body_color = body_color;
}

ofVec2f Particle::get_location() {

	return this->location;
}

ofColor Particle::get_body_color() {

	return this->body_color;
}

#include "Particle.h"

Particle::Particle() {

this->location = ofVec2f(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));

this->velocity = ofVec2f(ofRandom(-3, 3), ofRandom(-3, 3));

this->velocity = this->velocity.normalized() * ofRandom(3, 5);

this->acceleration = ofVec2f();

this->body_color.setHsb(ofRandom(255), 255, 255);

}

void Particle::apply_force(ofVec2f force) {

this->acceleration += force;

}

void Particle::update() {

this->acceleration += this->velocity;

this->location += this->acceleration;

this->acceleration *= 0;

if (this->location.x < 0) {

this->location.x = 0;

this->velocity.x *= -1;

}

else if (this->location.x > ofGetWidth()) {

this->location.x = ofGetWidth();

this->velocity.x *= -1;

}

if (this->location.y < 0) {

this->location.y = 0;

this->velocity.y *= -1;

}

else if (this->location.y > ofGetHeight()) {

this->location.y = ofGetHeight();

this->velocity.y *= -1;

}

void Particle::draw() {

ofSetColor(this->body_color);

ofDrawCircle(this->location, 3);

}

void Particle::set_color(ofColor body_color) {

this->body_color = body_color;

}

ofVec2f Particle::get_location() {

return this->location;

}

ofColor Particle::get_body_color() {

return this->body_color;

}

[ Link ]
https://github.com/junkiyoshi/Insta20180124

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