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

[ほしいものリスト]
Amazon

[ Sponsor Link ]

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());
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

#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

[ほしいものリスト]
Amazon

[ Sponsor Link ]

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());
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

#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

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年11月
月	火	水	木	金	土	日
				1	2	3
4	5	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