box2d – ページ 13 – プログラミング de 落描き

2018年8月22日2018年8月22日

ofxBox2d & Shader. openFrameworks

[ Video ]

[ About ]
ofxBox2dで2D物理演算をした座標情報をシェーダーへ送信。完全に雰囲気でGLSLを書いている状態である。

Send the result of physical calculation by ofxBox2d to the Shader.

[ 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;
	ofShader shader;
	int number_of_targets;
	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<glm::vec4> colors;
	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;

ofShader shader;

int number_of_targets;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<glm::vec4> colors;

vector<ofPoint> force_fields;

int force_field_radius;

};

#include "ofApp.h"

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

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

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

	this->number_of_targets = 39;

	for (int i = 0; i < this->number_of_targets; i++) {
	
		this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));
		this->circles.back().get()->setPhysics(1.5, 0.5, 0.1);
		this->circles.back().get()->setup(this->box2d.getWorld(), ofRandom(ofGetWidth()), ofRandom(ofGetHeight()), 15);

		int color_type = ofRandom(3);
		glm::vec4 color;
		switch (color_type) {
		case 0:
			color = glm::vec4(1.0, 0.0, 0.0, 0.0);
			break;
		case 1:
			color = glm::vec4(0.0, 1.0, 0.0, 0.0);
			break;
		case 2:
			color = glm::vec4(0.0, 0.0, 1.0, 0.0);
			break;
		}
		this->colors.push_back(color);
	}

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

	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() {

	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, 0.01));
			}
		}
	}

	this->box2d.update();
}

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

	vector<glm::vec4> points;
	for (int i = 0; i < this->number_of_targets; i++) {
		
		glm::vec4 p = glm::vec4(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y, 0, 0);
		points.push_back(p);
	}

	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform4fv("targets", &points[0].x, this->number_of_targets);
	this->shader.setUniform4fv("colors", &this->colors[0].x, this->number_of_targets);
	ofRect(0, 0, ofGetWidth(), ofGetHeight());

	this->shader.end();

}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

this->box2d.init();

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

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

this->number_of_targets = 39;

for (int i = 0; i < this->number_of_targets; i++) {

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

this->circles.back().get()->setPhysics(1.5, 0.5, 0.1);

this->circles.back().get()->setup(this->box2d.getWorld(), ofRandom(ofGetWidth()), ofRandom(ofGetHeight()), 15);

int color_type = ofRandom(3);

glm::vec4 color;

switch (color_type) {

case 0:

color = glm::vec4(1.0, 0.0, 0.0, 0.0);

break;

case 1:

color = glm::vec4(0.0, 1.0, 0.0, 0.0);

break;

case 2:

color = glm::vec4(0.0, 0.0, 1.0, 0.0);

break;

}

this->colors.push_back(color);

}

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

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() {

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, 0.01));

}

this->box2d.update();

}

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

void ofApp::draw() {

vector<glm::vec4> points;

for (int i = 0; i < this->number_of_targets; i++) {

glm::vec4 p = glm::vec4(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y, 0, 0);

points.push_back(p);

}

this->shader.begin();

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

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

this->shader.setUniform4fv("targets", &points[0].x, this->number_of_targets);

this->shader.setUniform4fv("colors", &this->colors[0].x, this->number_of_targets);

ofRect(0, 0, ofGetWidth(), ofGetHeight());

this->shader.end();

}

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

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

const int number_of_targets = 39;

out vec4 outputColor;
uniform float time;
uniform vec2 resolution;
uniform vec4 targets[number_of_targets];
uniform vec4 colors[number_of_targets];

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(0.0);
  for(int i = 0; i < number_of_targets; i++){

    vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;
    t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

    float r = 0.03 / length(p - t) * colors[i].x;
    float g = 0.03 / length(p - t) * colors[i].y;
    float b = 0.03 / length(p - t) * colors[i].z;
    color += vec3(r, g, b);
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 39;

out vec4 outputColor;

uniform float time;

uniform vec2 resolution;

uniform vec4 targets[number_of_targets];

uniform vec4 colors[number_of_targets];

void main() {

vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

vec3 color = vec3(0.0);

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

vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;

t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

float r = 0.03 / length(p - t) * colors[i].x;

float g = 0.03 / length(p - t) * colors[i].y;

float b = 0.03 / length(p - t) * colors[i].z;

color += vec3(r, g, b);

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20180822

2018年8月13日2018年8月13日

Particle Sound System. openFrameworks

[ Video ]

[ About ]
560日前にProcessing + Box2dで作ったやつをopenFrameworks + ofxBox2dでサウンド付きでリメイク

I made this work using Processing and JBox2D 560 days ago. I added a sound and remade it using openFrameworks and ofxBox2d.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.h"
#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 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) {};

	void contactStart(ofxBox2dContactArgs &e);
	void contactEnd(ofxBox2dContactArgs &e);

	ofxBox2d box2d;
	vector<unique_ptr<Particle>> particles;
	vector<tuple<ofPoint, ofColor, float>> waves;
};

enum WaveFileds{ Point, Color, Life };

#pragma once

#include "ofMain.h"

#include "ofxBox2d.h"

#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 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) {};

void contactStart(ofxBox2dContactArgs &e);

void contactEnd(ofxBox2dContactArgs &e);

ofxBox2d box2d;

vector<unique_ptr<Particle>> particles;

vector<tuple<ofPoint, ofColor, float>> waves;

};

enum WaveFileds{ Point, Color, Life };

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofSetCircleResolution(72);

	this->box2d.init();
	this->box2d.enableEvents();
	this->box2d.setGravity(0, 10);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

	ofAddListener(box2d.contactStartEvents, this, &ofApp::contactStart);
	ofAddListener(box2d.contactEndEvents, this, &ofApp::contactEnd);

	for (int i = 0; i < 3; i++) {

		unique_ptr<Particle> particle(new Particle(this->box2d, ofPoint(i * 240 + 120, i % 2 == 1 ? ofGetHeight() * 0.4 : ofGetHeight() * 0.6), true));
		this->particles.push_back(std::move(particle));
	}

}

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

	if (ofGetFrameNum() % 45 == 0) {

		unique_ptr<Particle> particle(new Particle(this->box2d, ofPoint(ofRandom(ofGetWidth()), ofGetHeight() * 0.05)));
		this->particles.push_back(std::move(particle));
	}

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

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

		if (this->particles[i]->IsDead()) {

			this->particles.erase(this->particles.begin() + i);
		}
	}

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

		if (get<WaveFileds::Life>(this->waves[i])++ > 120) {

			this->waves.erase(this->waves.begin() + i);
		}
	}

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

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

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

		ofSetColor(get<WaveFileds::Color>(this->waves[i]));
		ofDrawCircle(get<WaveFileds::Point>(this->waves[i]), get<WaveFileds::Life>(this->waves[i]));
	}

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

		this->particles[i]->Draw();
	}
}


//--------------------------------------------------------------
void ofApp::contactStart(ofxBox2dContactArgs &e) {

	if (e.a != NULL && e.b != NULL) {

		if (e.a->GetType() == b2Shape::e_circle && e.b->GetType() == b2Shape::e_circle) {

			Particle* p_a = (Particle*)e.a->GetBody()->GetUserData();
			Particle* p_b = (Particle*)e.b->GetBody()->GetUserData();
			if (p_a != nullptr && p_b != nullptr) {

				if (p_a->IsObstruct() && p_b->IsObstruct() == false) {

					p_a->SetColor(p_b->GetColor());
					p_b->PlaySound();

					tuple<ofPoint, ofColor, float> wave = make_tuple(p_a->GetPoint(), p_b->GetColor(), 80);
					this->waves.push_back(wave);
				}

				if (p_b->IsObstruct() && p_a->IsObstruct() == false) {

					p_b->SetColor(p_a->GetColor());
					p_a->PlaySound();

					tuple<ofPoint, ofColor, float> wave = make_tuple(p_b->GetPoint(), p_a->GetColor(), 80);
					this->waves.push_back(wave);
				}
			}

			return;
		}
	}
}

//--------------------------------------------------------------
void ofApp::contactEnd(ofxBox2dContactArgs &e) {

	if (e.a != NULL && e.b != NULL) {

		// do nothing
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(239);

ofSetLineWidth(3);

ofSetCircleResolution(72);

this->box2d.init();

this->box2d.enableEvents();

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

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

ofAddListener(box2d.contactStartEvents, this, &ofApp::contactStart);

ofAddListener(box2d.contactEndEvents, this, &ofApp::contactEnd);

for (int i = 0; i < 3; i++) {

unique_ptr<Particle> particle(new Particle(this->box2d, ofPoint(i * 240 + 120, i % 2 == 1 ? ofGetHeight() * 0.4 : ofGetHeight() * 0.6), true));

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

}

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

void ofApp::update() {

if (ofGetFrameNum() % 45 == 0) {

unique_ptr<Particle> particle(new Particle(this->box2d, ofPoint(ofRandom(ofGetWidth()), ofGetHeight() * 0.05)));

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

}

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

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

if (this->particles[i]->IsDead()) {

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

}

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

if (get<WaveFileds::Life>(this->waves[i])++ > 120) {

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

}

this->box2d.update();

ofSoundUpdate();

}

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

void ofApp::draw() {

ofNoFill();

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

ofSetColor(get<WaveFileds::Color>(this->waves[i]));

ofDrawCircle(get<WaveFileds::Point>(this->waves[i]), get<WaveFileds::Life>(this->waves[i]));

}

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

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

}

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

void ofApp::contactStart(ofxBox2dContactArgs &e) {

if (e.a != NULL && e.b != NULL) {

if (e.a->GetType() == b2Shape::e_circle && e.b->GetType() == b2Shape::e_circle) {

Particle* p_a = (Particle*)e.a->GetBody()->GetUserData();

Particle* p_b = (Particle*)e.b->GetBody()->GetUserData();

if (p_a != nullptr && p_b != nullptr) {

if (p_a->IsObstruct() && p_b->IsObstruct() == false) {

p_a->SetColor(p_b->GetColor());

p_b->PlaySound();

tuple<ofPoint, ofColor, float> wave = make_tuple(p_a->GetPoint(), p_b->GetColor(), 80);

this->waves.push_back(wave);

}

if (p_b->IsObstruct() && p_a->IsObstruct() == false) {

p_b->SetColor(p_a->GetColor());

p_a->PlaySound();

tuple<ofPoint, ofColor, float> wave = make_tuple(p_b->GetPoint(), p_a->GetColor(), 80);

this->waves.push_back(wave);

}

return;

}

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

void ofApp::contactEnd(ofxBox2dContactArgs &e) {

if (e.a != NULL && e.b != NULL) {

// do nothing

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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

class Particle
{
public:
	Particle(ofxBox2d& box2d, ofPoint point, bool is_obstruct = false);
	~Particle();

	void Update();
	void Draw();
	void PlaySound();

	void SetColor(ofColor color);
	ofColor GetColor();
	ofPoint GetPoint();
	bool IsObstruct();
	bool IsDead();
private:

	ofxBox2dCircle* circle = nullptr;
	int sound_type; // 0 - 7
	ofSoundPlayer sound;
	ofColor color;
	float life;
	bool is_obstruct;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.h"

class Particle

{

public:

Particle(ofxBox2d& box2d, ofPoint point, bool is_obstruct = false);

~Particle();

void Update();

void Draw();

void PlaySound();

void SetColor(ofColor color);

ofColor GetColor();

ofPoint GetPoint();

bool IsObstruct();

bool IsDead();

private:

ofxBox2dCircle* circle = nullptr;

int sound_type; // 0 - 7

ofSoundPlayer sound;

ofColor color;

float life;

bool is_obstruct;

};

#include "Particle.h"

Particle::Particle(ofxBox2d& box2d, ofPoint point, bool is_obstruct) {

	string sound_path_list[] = { "sound/pianoC.mp3", "sound/pianoD.mp3", "sound/pianoE.mp3", "sound/pianoF.mp3", "sound/pianoG.mp3", "sound/pianoA.mp3", "sound/pianoB.mp3", "sound/pianoC2.mp3" };

	this->circle = new ofxBox2dCircle();
	if (is_obstruct) {

		this->circle->setPhysics(0.0, 1.0, 1.0);
		this->circle->setup(box2d.getWorld(), point.x, point.y, 80);
		this->circle->setData(this);

		this->sound_type = -1;
		this->color = ofColor(39);
	}
	else {

		this->circle = new ofxBox2dCircle();
		this->circle->setPhysics(1.0, 0.3, 1.0);
		this->circle->setup(box2d.getWorld(), point.x, point.y, 15);
		this->circle->setData(this);

		this->sound_type = ofRandom(8);
		this->sound.load(sound_path_list[sound_type]);
		this->sound.setMultiPlay(true);
		this->sound.setVolume(0.5);

		this->color.setHsb(ofMap(this->sound_type, 0, 7, 0, 255), 255, 255);
	}

	this->life = 255.f;
	this->is_obstruct = is_obstruct;
}

Particle::~Particle(){

	if (this->circle != nullptr) {

		this->circle->destroy();
		delete this->circle;
	}
}

void Particle::Update() {

	if (this->is_obstruct == false) {

		this->life -= 1.0;
	}
}

void Particle::Draw() {

	ofFill();
	ofSetColor(this->color, this->life > 64 ? 255 : ofMap(this->life, 0, 64, 0, 255));
	ofDrawCircle(this->circle->getPosition(), this->circle->getRadius());

	if (this->is_obstruct == false) {

		ofNoFill();
		ofSetColor(this->color);
		ofDrawCircle(this->circle->getPosition(), this->circle->getRadius());
	}
}

void Particle::PlaySound() {

	if (this->is_obstruct) {

		return;
	}

	this->sound.play();
}

void Particle::SetColor(ofColor color) { this->color = color; }
ofColor Particle::GetColor() { return this->color; }
ofPoint Particle::GetPoint() { return this->circle->getPosition(); }
bool Particle::IsObstruct() { return this->is_obstruct; }
bool Particle::IsDead() { return this->life < 0 ? true : false; }

#include "Particle.h"

Particle::Particle(ofxBox2d& box2d, ofPoint point, bool is_obstruct) {

string sound_path_list[] = { "sound/pianoC.mp3", "sound/pianoD.mp3", "sound/pianoE.mp3", "sound/pianoF.mp3", "sound/pianoG.mp3", "sound/pianoA.mp3", "sound/pianoB.mp3", "sound/pianoC2.mp3" };

this->circle = new ofxBox2dCircle();

if (is_obstruct) {

this->circle->setPhysics(0.0, 1.0, 1.0);

this->circle->setup(box2d.getWorld(), point.x, point.y, 80);

this->circle->setData(this);

this->sound_type = -1;

this->color = ofColor(39);

}

else {

this->circle = new ofxBox2dCircle();

this->circle->setPhysics(1.0, 0.3, 1.0);

this->circle->setup(box2d.getWorld(), point.x, point.y, 15);

this->circle->setData(this);

this->sound_type = ofRandom(8);

this->sound.load(sound_path_list[sound_type]);

this->sound.setMultiPlay(true);

this->sound.setVolume(0.5);

this->color.setHsb(ofMap(this->sound_type, 0, 7, 0, 255), 255, 255);

}

this->life = 255.f;

this->is_obstruct = is_obstruct;

}

Particle::~Particle(){

if (this->circle != nullptr) {

this->circle->destroy();

delete this->circle;

}

void Particle::Update() {

if (this->is_obstruct == false) {

this->life -= 1.0;

}

void Particle::Draw() {

ofFill();

ofSetColor(this->color, this->life > 64 ? 255 : ofMap(this->life, 0, 64, 0, 255));

ofDrawCircle(this->circle->getPosition(), this->circle->getRadius());

if (this->is_obstruct == false) {

ofNoFill();

ofSetColor(this->color);

ofDrawCircle(this->circle->getPosition(), this->circle->getRadius());

}

void Particle::PlaySound() {

if (this->is_obstruct) {

return;

}

this->sound.play();

}

void Particle::SetColor(ofColor color) { this->color = color; }

ofColor Particle::GetColor() { return this->color; }

ofPoint Particle::GetPoint() { return this->circle->getPosition(); }

bool Particle::IsObstruct() { return this->is_obstruct; }

bool Particle::IsDead() { return this->life < 0 ? true : false; }

[ Link ]
https://github.com/junkiyoshi/Insta20180813

2018年8月9日2018年8月9日

Physics And Sound. openframeworks

[ Video ]

[ About ]
♪ 物理エンジンを使ったピアノ演奏

♪ Play piano by physics engine.

[ Source ]

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

#include "Particle.h"
#include "Obstruct.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) {}

	void contactStart(ofxBox2dContactArgs &e);
	void contactEnd(ofxBox2dContactArgs &e);

	ofxBox2d box2d;
	vector<unique_ptr<Particle>> particles;
	vector<unique_ptr<Obstruct>> obstructs;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.h"

#include "Particle.h"

#include "Obstruct.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) {}

void contactStart(ofxBox2dContactArgs &e);

void contactEnd(ofxBox2dContactArgs &e);

ofxBox2d box2d;

vector<unique_ptr<Particle>> particles;

vector<unique_ptr<Obstruct>> obstructs;

};

#include "ofApp.h"

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

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

	ofBackground(239);

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

	ofAddListener(box2d.contactStartEvents, this, &ofApp::contactStart);
	ofAddListener(box2d.contactEndEvents, this, &ofApp::contactEnd);

	string sound_path_list[] = {"sound/pianoC.mp3", "sound/pianoD.mp3", "sound/pianoE.mp3", "sound/pianoF.mp3", "sound/pianoG.mp3", "sound/pianoA.mp3", "sound/pianoB.mp3", "sound/pianoC2.mp3"};
	for (int i = 0; i < 8; i++) {

		unique_ptr<Obstruct> ob(new Obstruct(this->box2d, ofPoint(ofGetWidth() * 0.125 * i + ofGetWidth() * 0.0625 , ofGetHeight() * 0.50), 50, 50, i * 28));
		ob->SetSound(sound_path_list[i]);
		this->obstructs.push_back(std::move(ob));
	}
}

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

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

		ofPoint point(ofRandom(ofGetWidth()), 10);
		float radius = 8;
		unique_ptr<Particle> p(new Particle(this->box2d, point, radius));

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

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

		this->particles[i]->Update();
		if (this->particles[i]->IsDead()) {

			this->particles.erase(this->particles.begin() + i);
		}
	}

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

		this->obstructs[i]->Update();
	}

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

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

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

		this->obstructs[i]->Draw();
	}

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

		this->particles[i]->Draw();
	}
}

//--------------------------------------------------------------
void ofApp::contactStart(ofxBox2dContactArgs &e) {

	if (e.a != NULL && e.b != NULL) {

		if (e.a->GetType() == b2Shape::e_circle && e.b->GetType() == b2Shape::e_circle) {

			Particle* p_a = (Particle*)e.a->GetBody()->GetUserData();
			Particle* p_b = (Particle*)e.b->GetBody()->GetUserData();
			if (p_a != nullptr && p_b != nullptr) {

				// Particle Collide
			}

			return;
		}

		if (e.a->GetType() == b2Shape::e_polygon && e.b->GetType() == b2Shape::e_circle) {

			Obstruct* o_a = (Obstruct*)e.a->GetBody()->GetUserData();
			Particle* p_b = (Particle*)e.b->GetBody()->GetUserData();
			if (o_a != nullptr && p_b != nullptr) {

				p_b->SetColor(o_a->GetColor());
				o_a->SoundPlay();
			}

			return;
		}

		if (e.a->GetType() == b2Shape::e_circle && e.b->GetType() == b2Shape::e_polygon) {

			Particle* p_a = (Particle*)e.a->GetBody()->GetUserData();
			Obstruct* o_b = (Obstruct*)e.b->GetBody()->GetUserData();
			if (p_a != nullptr && o_b != nullptr) {

				p_a->SetColor(o_b->GetColor());
				o_b->SoundPlay();
			}

			return;
		}
	}
}

//--------------------------------------------------------------
void ofApp::contactEnd(ofxBox2dContactArgs &e) {

	if (e.a != NULL && e.b != NULL) {

		// do nothing
	}
}

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

this->box2d.init();

this->box2d.enableEvents();

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

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

ofAddListener(box2d.contactStartEvents, this, &ofApp::contactStart);

ofAddListener(box2d.contactEndEvents, this, &ofApp::contactEnd);

string sound_path_list[] = {"sound/pianoC.mp3", "sound/pianoD.mp3", "sound/pianoE.mp3", "sound/pianoF.mp3", "sound/pianoG.mp3", "sound/pianoA.mp3", "sound/pianoB.mp3", "sound/pianoC2.mp3"};

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

unique_ptr<Obstruct> ob(new Obstruct(this->box2d, ofPoint(ofGetWidth() * 0.125 * i + ofGetWidth() * 0.0625 , ofGetHeight() * 0.50), 50, 50, i * 28));

ob->SetSound(sound_path_list[i]);

this->obstructs.push_back(std::move(ob));

}

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

void ofApp::update() {

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

ofPoint point(ofRandom(ofGetWidth()), 10);

float radius = 8;

unique_ptr<Particle> p(new Particle(this->box2d, point, radius));

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

}

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

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

if (this->particles[i]->IsDead()) {

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

}

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

this->obstructs[i]->Update();

}

this->box2d.update();

ofSoundUpdate();

}

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

void ofApp::draw() {

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

this->obstructs[i]->Draw();

}

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

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

}

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

void ofApp::contactStart(ofxBox2dContactArgs &e) {

if (e.a != NULL && e.b != NULL) {

if (e.a->GetType() == b2Shape::e_circle && e.b->GetType() == b2Shape::e_circle) {

Particle* p_a = (Particle*)e.a->GetBody()->GetUserData();

Particle* p_b = (Particle*)e.b->GetBody()->GetUserData();

if (p_a != nullptr && p_b != nullptr) {

// Particle Collide

}

return;

}

if (e.a->GetType() == b2Shape::e_polygon && e.b->GetType() == b2Shape::e_circle) {

Obstruct* o_a = (Obstruct*)e.a->GetBody()->GetUserData();

Particle* p_b = (Particle*)e.b->GetBody()->GetUserData();

if (o_a != nullptr && p_b != nullptr) {

p_b->SetColor(o_a->GetColor());

o_a->SoundPlay();

}

return;

}

if (e.a->GetType() == b2Shape::e_circle && e.b->GetType() == b2Shape::e_polygon) {

Particle* p_a = (Particle*)e.a->GetBody()->GetUserData();

Obstruct* o_b = (Obstruct*)e.b->GetBody()->GetUserData();

if (p_a != nullptr && o_b != nullptr) {

p_a->SetColor(o_b->GetColor());

o_b->SoundPlay();

}

return;

}

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

void ofApp::contactEnd(ofxBox2dContactArgs &e) {

if (e.a != NULL && e.b != NULL) {

// do nothing

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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

class Obstruct
{
public:

	Obstruct(ofxBox2d& box2d, ofPoint point, float width, float height, float fue);
	~Obstruct();

	void Update();
	void Draw();
	void SoundPlay();

	void SetSound(string soude_path);
	ofColor GetColor();
private:

	ofxBox2dRect* rect = nullptr;
	ofColor color;
	ofSoundPlayer sound;
	vector<float> waves;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.h"

class Obstruct

{

public:

Obstruct(ofxBox2d& box2d, ofPoint point, float width, float height, float fue);

~Obstruct();

void Update();

void Draw();

void SoundPlay();

void SetSound(string soude_path);

ofColor GetColor();

private:

ofxBox2dRect* rect = nullptr;

ofColor color;

ofSoundPlayer sound;

vector<float> waves;

};

#include "Obstruct.h"

Obstruct::Obstruct(ofxBox2d& box2d, ofPoint point, float width, float height, float hue)
{
	this->rect = new ofxBox2dRect();
	this->rect->setPhysics(0.0, 1.0, 1.0);
	this->rect->setup(box2d.getWorld(), point.x , point.y, width, height);
	this->rect->setData(this);

	this->color.setHsb(hue, 255, 230);
}

Obstruct::~Obstruct()
{
	if (this->rect != nullptr) {

		this->rect->destroy();
		delete this->rect;
	}
}

void Obstruct::Update() {

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

		this->waves[i] += 1;
		if (this->waves[i] > 60) {

			this->waves.erase(this->waves.begin() + i);
		}
	}
}

void Obstruct::Draw() {

	float width = this->rect->getWidth();
	float height = this->rect->getHeight();

	ofFill();
	ofSetColor(this->color);
	ofDrawRectangle(this->rect->getPosition() + ofPoint(width * -0.5, height * -0.5) , width, height);

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

		ofNoFill();
		ofSetColor(this->color, ofMap(this->waves[i], 0, 60, 255, 0));
	
		float wave_width = width + waves[i];
		float wave_height = height + waves[i];

		ofDrawRectangle(this->rect->getPosition() + ofPoint(wave_width * -0.5, wave_height * -0.5), wave_width, wave_height);
	}
}

void Obstruct::SoundPlay() {

	this->sound.play();
	this->waves.push_back(0);
}

// Setter
void Obstruct::SetSound(string sound_path) {

	this->sound.load(sound_path);
	this->sound.setVolume(0.5);
	this->sound.setMultiPlay(true);
}

// Getter
ofColor Obstruct::GetColor() { return this->color; }

#include "Obstruct.h"

Obstruct::Obstruct(ofxBox2d& box2d, ofPoint point, float width, float height, float hue)

{

this->rect = new ofxBox2dRect();

this->rect->setPhysics(0.0, 1.0, 1.0);

this->rect->setup(box2d.getWorld(), point.x , point.y, width, height);

this->rect->setData(this);

this->color.setHsb(hue, 255, 230);

}

Obstruct::~Obstruct()

{

if (this->rect != nullptr) {

this->rect->destroy();

delete this->rect;

}

void Obstruct::Update() {

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

this->waves[i] += 1;

if (this->waves[i] > 60) {

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

}

void Obstruct::Draw() {

float width = this->rect->getWidth();

float height = this->rect->getHeight();

ofFill();

ofSetColor(this->color);

ofDrawRectangle(this->rect->getPosition() + ofPoint(width * -0.5, height * -0.5) , width, height);

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

ofNoFill();

ofSetColor(this->color, ofMap(this->waves[i], 0, 60, 255, 0));

float wave_width = width + waves[i];

float wave_height = height + waves[i];

ofDrawRectangle(this->rect->getPosition() + ofPoint(wave_width * -0.5, wave_height * -0.5), wave_width, wave_height);

}

void Obstruct::SoundPlay() {

this->sound.play();

this->waves.push_back(0);

}

// Setter

void Obstruct::SetSound(string sound_path) {

this->sound.load(sound_path);

this->sound.setVolume(0.5);

this->sound.setMultiPlay(true);

}

// Getter

ofColor Obstruct::GetColor() { return this->color; }

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

class Particle
{
public:

	Particle(ofxBox2d& box2d, ofPoint point, float radius);
	~Particle();

	void Update();
	void Draw();

	void SetColor(ofColor color);
	ofColor GetColor();
	ofPoint GetVelocity();
	bool IsDead();
private:

	ofxBox2dCircle* circle = nullptr;
	ofColor color;
	float life;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.h"

class Particle

{

public:

Particle(ofxBox2d& box2d, ofPoint point, float radius);

~Particle();

void Update();

void Draw();

void SetColor(ofColor color);

ofColor GetColor();

ofPoint GetVelocity();

bool IsDead();

private:

ofxBox2dCircle* circle = nullptr;

ofColor color;

float life;

};

#include "Particle.h"

Particle::Particle(ofxBox2d& box2d, ofPoint point, float radius)
{
	this->circle = new ofxBox2dCircle();
	this->circle->setPhysics(1.0, 0.3, 1.0);
	this->circle->setup(box2d.getWorld(), point.x, point.y, radius);
	this->circle->setData(this);

	this->color = ofColor(39);
	this->life = 255;
}

Particle::~Particle()
{
	if (this->circle != nullptr) {

		this->circle->destroy();
		delete this->circle;
	}
}

void Particle::Update() {

	this->life -= 1.5;
}

void Particle::Draw() {

	ofFill();
	ofSetColor(this->color, this->life > 64 ? 255 : ofMap(this->life, 0, 64, 0, 255));
	ofDrawCircle(this->circle->getPosition(), this->circle->getRadius());
}

// Setter 
void Particle::SetColor(ofColor color) { this->color = color; }

// Getter
ofColor Particle::GetColor() { return this->color; }
ofPoint Particle::GetVelocity() { return this->circle->getVelocity(); }
bool Particle::IsDead() { return this->life <= 0 ? true : false; }

#include "Particle.h"

Particle::Particle(ofxBox2d& box2d, ofPoint point, float radius)

{

this->circle = new ofxBox2dCircle();

this->circle->setPhysics(1.0, 0.3, 1.0);

this->circle->setup(box2d.getWorld(), point.x, point.y, radius);

this->circle->setData(this);

this->color = ofColor(39);

this->life = 255;

}

Particle::~Particle()

{

if (this->circle != nullptr) {

this->circle->destroy();

delete this->circle;

}

void Particle::Update() {

this->life -= 1.5;

}

void Particle::Draw() {

ofFill();

ofSetColor(this->color, this->life > 64 ? 255 : ofMap(this->life, 0, 64, 0, 255));

ofDrawCircle(this->circle->getPosition(), this->circle->getRadius());

}

// Setter

void Particle::SetColor(ofColor color) { this->color = color; }

// Getter

ofColor Particle::GetColor() { return this->color; }

ofPoint Particle::GetVelocity() { return this->circle->getVelocity(); }

bool Particle::IsDead() { return this->life <= 0 ? true : false; }

[ Link ]
https://github.com/junkiyoshi/Insta20180809

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