2020年3月 – ページ 3 – プログラミング de 落描き

2020年3月25日2020年3月25日

Glowing random walks. openFrameworks

[ Video ]

[ About ]
お互いに近づくと輝きを増すランダムウォーク。
光る処理はShaderを使用。

Random walks that shine as they get closer to each other.
Shader is used for the glowing process.

[ 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 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) {};

	ofShader shader;
	int number_of_targets;
	vector<glm::vec4> location_list;
	vector<float> size_list;
};

#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 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) {};

ofShader shader;

int number_of_targets;

vector<glm::vec4> location_list;

vector<float> size_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	this->number_of_targets = 65;
	this->shader.load("shader/shader.vert", "shader/shader.frag");
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	this->location_list.clear();
	this->size_list.clear();

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

		auto location = glm::vec4(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, ofGetHeight()), 0, 0);
		this->location_list.push_back(location);
		this->size_list.push_back(0.1);
	}

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

		for (int k = i + 1; k < this->number_of_targets; k++) {

			auto distance = glm::distance(this->location_list[i], this->location_list[k]);
			if (distance < 50) {

				this->size_list[i] += 0.25;
				this->size_list[k] += 0.25;
			}
		}
	}
}

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

	this->shader.begin();

	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform4fv("targets", &this->location_list[0].x, this->number_of_targets);
	this->shader.setUniform1fv("sizes", &this->size_list[0], 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(30);

ofSetWindowTitle("openframeworks");

this->number_of_targets = 65;

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->location_list.clear();

this->size_list.clear();

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

auto location = glm::vec4(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, ofGetHeight()), 0, 0);

this->location_list.push_back(location);

this->size_list.push_back(0.1);

}

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

for (int k = i + 1; k < this->number_of_targets; k++) {

auto distance = glm::distance(this->location_list[i], this->location_list[k]);

if (distance < 50) {

this->size_list[i] += 0.25;

this->size_list[k] += 0.25;

}

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

void ofApp::draw() {

this->shader.begin();

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

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

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

this->shader.setUniform1fv("sizes", &this->size_list[0], 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 = 65;

out vec4 outputColor;
uniform float time;
uniform vec2 resolution;
uniform vec4 targets[number_of_targets];
uniform float sizes[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) * sizes[i];
    vec3 c = vec3(smoothstep(0.03, 1.0, r), smoothstep(0.03, 1.0, r), smoothstep(0.03, 1.0, r));
    color += c;
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 65;

out vec4 outputColor;

uniform float time;

uniform vec2 resolution;

uniform vec4 targets[number_of_targets];

uniform float sizes[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) * sizes[i];

vec3 c = vec3(smoothstep(0.03, 1.0, r), smoothstep(0.03, 1.0, r), smoothstep(0.03, 1.0, r));

color += c;

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20200325

[ほしいものリスト]
Amazon

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2020年3月24日

Random walker crating random walker 3D Edition. openFrameworks

[ Video ]

[ About ]
Random walker crating random walker 3D Edition.

[ Source ]

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

	ofEasyCam cam;

	vector<glm::vec3> noise_seed_list;
	vector<glm::vec3> noise_location_list;

	vector<glm::vec3> location_list;
	vector<vector<int>> next_index_list;

	vector<unique_ptr<Actor>> actor_list;
};

#pragma once

#include "ofMain.h"

#include "Actor.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) {};

ofEasyCam cam;

vector<glm::vec3> noise_seed_list;

vector<glm::vec3> noise_location_list;

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<unique_ptr<Actor>> actor_list;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(2);

	auto span = 20;
	for (int x = -300; x <= 300; x += span) {

		for (int y = -300; y <= 300; y += span) {

			for (int z = -300; z <= 300; z += span) {

				this->location_list.push_back(glm::vec3(x, y, z));
			}
		}
	}

	for (auto& location : this->location_list) {

		vector<int> next_index = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	for (int i = 0; i < 2; i++) {

		this->noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));
		this->noise_location_list.push_back(glm::vec3());
	}
}


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

	int frame_span = 15;
	int prev_index_size = 0;

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

		this->noise_location_list[i] = glm::vec3(
			ofMap(ofNoise(this->noise_seed_list[i].x, ofGetFrameNum() * 0.008), 0, 1, -350, 350),
			ofMap(ofNoise(this->noise_seed_list[i].y, ofGetFrameNum() * 0.008), 0, 1, -350, 350),
			ofMap(ofNoise(this->noise_seed_list[i].z, ofGetFrameNum() * 0.008), 0, 1, -350, 350));

		for (int k = 0; k < this->location_list.size(); k++) {

			auto distance = glm::distance(this->noise_location_list[i], this->location_list[k]);
			if (distance < 10) {

				this->actor_list.push_back(make_unique<Actor>(k));
			}
		}
	}

	for (auto& actor : this->actor_list) {

		actor->update(frame_span, this->location_list, this->next_index_list);
	}

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

		if (this->actor_list[i]->isDead()) {

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

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

	this->cam.begin();
	ofRotate(90);
	ofRotateY(180);
	ofRotateX(ofGetFrameNum() * 0.5);

	for (auto& actor : this->actor_list) {

		actor->draw();
	}

	for (auto& noise_location : this->noise_location_list) {

		ofDrawSphere(noise_location, 10);
	}

	this->cam.end();
}

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

auto span = 20;

for (int x = -300; x <= 300; x += span) {

for (int y = -300; y <= 300; y += span) {

for (int z = -300; z <= 300; z += span) {

this->location_list.push_back(glm::vec3(x, y, z));

}

for (auto& location : this->location_list) {

vector<int> next_index = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

for (int i = 0; i < 2; i++) {

this->noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));

this->noise_location_list.push_back(glm::vec3());

}

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

void ofApp::update() {

int frame_span = 15;

int prev_index_size = 0;

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

this->noise_location_list[i] = glm::vec3(

ofMap(ofNoise(this->noise_seed_list[i].x, ofGetFrameNum() * 0.008), 0, 1, -350, 350),

ofMap(ofNoise(this->noise_seed_list[i].y, ofGetFrameNum() * 0.008), 0, 1, -350, 350),

ofMap(ofNoise(this->noise_seed_list[i].z, ofGetFrameNum() * 0.008), 0, 1, -350, 350));

for (int k = 0; k < this->location_list.size(); k++) {

auto distance = glm::distance(this->noise_location_list[i], this->location_list[k]);

if (distance < 10) {

this->actor_list.push_back(make_unique<Actor>(k));

}

for (auto& actor : this->actor_list) {

actor->update(frame_span, this->location_list, this->next_index_list);

}

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

if (this->actor_list[i]->isDead()) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotate(90);

ofRotateY(180);

ofRotateX(ofGetFrameNum() * 0.5);

for (auto& actor : this->actor_list) {

actor->draw();

}

for (auto& noise_location : this->noise_location_list) {

ofDrawSphere(noise_location, 10);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Actor {
public:
	Actor(vector<glm::vec3>& location_list);
	Actor(int select_index);
	void update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list);
	void draw();

	bool isDead();

private:

	int select_index;
	int next_index;
	int life;

	glm::vec3 location;
	std::deque<glm::vec3> log;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

Actor(vector<glm::vec3>& location_list);

Actor(int select_index);

void update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list);

void draw();

bool isDead();

private:

int select_index;

int next_index;

int life;

glm::vec3 location;

std::deque<glm::vec3> log;

};

#include "Actor.h"

//--------------------------------------------------------------
Actor::Actor(vector<glm::vec3>& location_list) {

	this->select_index = ofRandom(location_list.size());
	this->next_index = this->select_index;
	this->life = 300;
}

//--------------------------------------------------------------
Actor::Actor(int select_index) {

	this->select_index = select_index;
	this->next_index = this->select_index;
	this->life = 300;
}

//--------------------------------------------------------------
void Actor::update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list) {

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

		this->select_index = this->next_index;
		this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];
	}

	auto param = ofGetFrameNum() % frame_span;
	auto distance = location_list[this->next_index] - location_list[this->select_index];
	this->location = location_list[this->select_index] + distance / frame_span * param;

	this->log.push_front(this->location);
	while (this->log.size() > 100) { this->log.pop_back(); }

	this->life--;
}

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

	this->life < 100 ? ofSetColor(ofMap(this->life, 0, 100, 239, 39)) : ofSetColor(39);

	ofFill();
	ofDrawSphere(this->log.front(), 3);

	ofNoFill();
	ofBeginShape();
	for (auto& l : this->log) {

		ofVertex(l);
	}
	ofEndShape();
}

//--------------------------------------------------------------
bool Actor::isDead() {

	return this->life < 0;
}

#include "Actor.h"

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

Actor::Actor(vector<glm::vec3>& location_list) {

this->select_index = ofRandom(location_list.size());

this->next_index = this->select_index;

this->life = 300;

}

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

Actor::Actor(int select_index) {

this->select_index = select_index;

this->next_index = this->select_index;

this->life = 300;

}

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

void Actor::update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list) {

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

this->select_index = this->next_index;

this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];

}

auto param = ofGetFrameNum() % frame_span;

auto distance = location_list[this->next_index] - location_list[this->select_index];

this->location = location_list[this->select_index] + distance / frame_span * param;

this->log.push_front(this->location);

while (this->log.size() > 100) { this->log.pop_back(); }

this->life--;

}

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

void Actor::draw() {

this->life < 100 ? ofSetColor(ofMap(this->life, 0, 100, 239, 39)) : ofSetColor(39);

ofFill();

ofDrawSphere(this->log.front(), 3);

ofNoFill();

ofBeginShape();

for (auto& l : this->log) {

ofVertex(l);

}

ofEndShape();

}

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

bool Actor::isDead() {

return this->life < 0;

}

[ Link ]
https://github.com/junkiyoshi/Insta20200324

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年3月23日2020年3月23日

Random walker creating by random walker. openFrameworks

[ Video ]

[ About ]
ランダムウォークから生成されたランダムウォーク。

Random walker creating by random walker.

[ Source ]

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

	ofEasyCam cam;

	vector<glm::vec2> noise_seed_list;
	vector<glm::vec3> noise_location_list;

	vector<glm::vec3> location_list;
	vector<vector<int>> next_index_list;

	vector<unique_ptr<Actor>> actor_list;
};

#pragma once

#include "ofMain.h"

#include "Actor.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) {};

ofEasyCam cam;

vector<glm::vec2> noise_seed_list;

vector<glm::vec3> noise_location_list;

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<unique_ptr<Actor>> actor_list;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(2);

	auto span = 20;
	for (int x = -300; x <= 300; x += span) {

		for (int y = -300; y <= 300; y += span) {

			this->location_list.push_back(glm::vec3(x, y, 0));
		}
	}

	for (auto& location : this->location_list) {

		vector<int> next_index = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	for (int i = 0; i < 2; i++) {

		this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));
		this->noise_location_list.push_back(glm::vec3());
	}
}


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

	int frame_span = 15;
	int prev_index_size = 0;

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

		this->noise_location_list[i] = glm::vec3(ofMap(ofNoise(this->noise_seed_list[i].x, ofGetFrameNum() * 0.008), 0, 1, -350, 350), ofMap(ofNoise(this->noise_seed_list[i].y, ofGetFrameNum() * 0.008), 0, 1, -350, 350), 0);
		for (int k = 0; k < this->location_list.size(); k++) {

			auto distance = glm::distance(this->noise_location_list[i], this->location_list[k]);
			if (distance < 10) {

				this->actor_list.push_back(make_unique<Actor>(k));
			}
		}		
	}

	for (auto& actor : this->actor_list) {

		actor->update(frame_span, this->location_list, this->next_index_list);
	}

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

		if (this->actor_list[i]->isDead()) {

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

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

	this->cam.begin();
	ofRotate(90);
	ofRotateY(180);

	for (auto& actor : this->actor_list) {

		actor->draw();
	}

	for (auto& noise_location : this->noise_location_list) {

		ofNoFill();
		ofDrawCircle(noise_location, 10);
	}

	this->cam.end();
}

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

auto span = 20;

for (int x = -300; x <= 300; x += span) {

for (int y = -300; y <= 300; y += span) {

this->location_list.push_back(glm::vec3(x, y, 0));

}

for (auto& location : this->location_list) {

vector<int> next_index = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

for (int i = 0; i < 2; i++) {

this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

this->noise_location_list.push_back(glm::vec3());

}

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

void ofApp::update() {

int frame_span = 15;

int prev_index_size = 0;

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

this->noise_location_list[i] = glm::vec3(ofMap(ofNoise(this->noise_seed_list[i].x, ofGetFrameNum() * 0.008), 0, 1, -350, 350), ofMap(ofNoise(this->noise_seed_list[i].y, ofGetFrameNum() * 0.008), 0, 1, -350, 350), 0);

for (int k = 0; k < this->location_list.size(); k++) {

auto distance = glm::distance(this->noise_location_list[i], this->location_list[k]);

if (distance < 10) {

this->actor_list.push_back(make_unique<Actor>(k));

}

for (auto& actor : this->actor_list) {

actor->update(frame_span, this->location_list, this->next_index_list);

}

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

if (this->actor_list[i]->isDead()) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotate(90);

ofRotateY(180);

for (auto& actor : this->actor_list) {

actor->draw();

}

for (auto& noise_location : this->noise_location_list) {

ofNoFill();

ofDrawCircle(noise_location, 10);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Actor {
public:
	Actor(vector<glm::vec3>& location_list);
	Actor(int select_index);
	void update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list);
	void draw();

	bool isDead();

private:

	int select_index;
	int next_index;
	int life;

	glm::vec3 location;
	std::deque<glm::vec3> log;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

Actor(vector<glm::vec3>& location_list);

Actor(int select_index);

void update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list);

void draw();

bool isDead();

private:

int select_index;

int next_index;

int life;

glm::vec3 location;

std::deque<glm::vec3> log;

};

#include "Actor.h"

//--------------------------------------------------------------
Actor::Actor(vector<glm::vec3>& location_list) {

	this->select_index = ofRandom(location_list.size());
	this->next_index = this->select_index;
	this->life = 100;
}

//--------------------------------------------------------------
Actor::Actor(int select_index) {

	this->select_index = select_index;
	this->next_index = this->select_index;
	this->life = 100;
}

//--------------------------------------------------------------
void Actor::update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list) {

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

		this->select_index = this->next_index;
		this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];
	}

	auto param = ofGetFrameNum() % frame_span;
	auto distance = location_list[this->next_index] - location_list[this->select_index];
	this->location = location_list[this->select_index] + distance / frame_span * param;

	this->log.push_front(this->location);
	while (this->log.size() > 50) { this->log.pop_back(); }

	this->life--;
}

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

	ofSetColor(39);
	ofFill();
	ofDrawCircle(this->log.front(), 3);

	ofNoFill();
	ofBeginShape();
	for (auto& l : this->log) {

		ofVertex(l);
	}
	ofEndShape();
}

//--------------------------------------------------------------
bool Actor::isDead() {

	return this->life < 0;
}

#include "Actor.h"

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

Actor::Actor(vector<glm::vec3>& location_list) {

this->select_index = ofRandom(location_list.size());

this->next_index = this->select_index;

this->life = 100;

}

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

Actor::Actor(int select_index) {

this->select_index = select_index;

this->next_index = this->select_index;

this->life = 100;

}

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

void Actor::update(int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list) {

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

this->select_index = this->next_index;

this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];

}

auto param = ofGetFrameNum() % frame_span;

auto distance = location_list[this->next_index] - location_list[this->select_index];

this->location = location_list[this->select_index] + distance / frame_span * param;

this->log.push_front(this->location);

while (this->log.size() > 50) { this->log.pop_back(); }

this->life--;

}

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

void Actor::draw() {

ofSetColor(39);

ofFill();

ofDrawCircle(this->log.front(), 3);

ofNoFill();

ofBeginShape();

for (auto& l : this->log) {

ofVertex(l);

}

ofEndShape();

}

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

bool Actor::isDead() {

return this->life < 0;

}

[ Link ]
https://github.com/junkiyoshi/Insta20200323

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