openframeworks – ページ 436 – プログラミング de 落描き

2020年1月12日

Sphere is transform and stop. openFrameworks

[ Video ]

[ About ]
球体の変化＆停止。

Sphere is transform and stop.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	
	vector<ofMesh> mesh_list;
	vector<ofMeshFace> triangle_list;
	float noise_param;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<ofMesh> mesh_list;

vector<ofMeshFace> triangle_list;

float noise_param;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

	ofIcoSpherePrimitive ico_sphere;
	ico_sphere = ofIcoSpherePrimitive(200, 3);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

	this->noise_param = ofRandom(1000);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 60 < 45) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.05, 0);
	}

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

		auto triangle = this->triangle_list[i];
		auto avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto noise_value = ofNoise(avg.x * 0.01, avg.y * 0.01, avg.z * 0.01, this->noise_param);

		vector<glm::vec3> vertices;
		vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(0) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));
		vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(1) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));
		vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(2) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

		ofMesh mesh;

		mesh.addVertex(glm::vec3());
		mesh.addVertices(vertices);

		mesh.addIndex(0);
		mesh.addIndex(1);
		mesh.addIndex(2);

		mesh.addIndex(0);
		mesh.addIndex(2);
		mesh.addIndex(3);

		mesh.addIndex(0);
		mesh.addIndex(1);
		mesh.addIndex(3);

		mesh.addIndex(1);
		mesh.addIndex(2);
		mesh.addIndex(3);

		this->mesh_list.push_back(mesh);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);
	ofRotateX(ofGetFrameNum() * 0.25);

	for (auto& mesh : this->mesh_list) {

		ofSetColor(39);
		mesh.drawFaces();

		ofSetColor(239);
		mesh.drawWireframe();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

ofIcoSpherePrimitive ico_sphere;

ico_sphere = ofIcoSpherePrimitive(200, 3);

this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

this->noise_param = ofRandom(1000);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 60 < 45) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.05, 0);

}

this->mesh_list.clear();

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

auto triangle = this->triangle_list[i];

auto avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.01, avg.y * 0.01, avg.z * 0.01, this->noise_param);

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(0) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(1) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(2) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

ofMesh mesh;

mesh.addVertex(glm::vec3());

mesh.addVertices(vertices);

mesh.addIndex(0);

mesh.addIndex(1);

mesh.addIndex(2);

mesh.addIndex(0);

mesh.addIndex(2);

mesh.addIndex(3);

mesh.addIndex(0);

mesh.addIndex(1);

mesh.addIndex(3);

mesh.addIndex(1);

mesh.addIndex(2);

mesh.addIndex(3);

this->mesh_list.push_back(mesh);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofRotateX(ofGetFrameNum() * 0.25);

for (auto& mesh : this->mesh_list) {

ofSetColor(39);

mesh.drawFaces();

ofSetColor(239);

mesh.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200112/

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年1月11日2020年1月11日

Switching camera target. openFrameworks

[ Movie ]

[ About ]
カメラの場所・ターゲットを切り替える。

Switching cameara target and position.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	ofTrueTypeFont font;

	vector<glm::vec3> location_list;
	glm::vec3 camera_location, target_location;
	int target_index, prev_index, camera_index;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofTrueTypeFont font;

vector<glm::vec3> location_list;

glm::vec3 camera_location, target_location;

int target_index, prev_index, camera_index;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 30, true, true, true);

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

		auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
		location = glm::normalize(location) * ofRandom(150, 200);
		this->location_list.push_back(location);
	}

	this->target_index = ofRandom(this->location_list.size());
	this->prev_index = ofRandom(this->location_list.size());
	this->camera_index = ofRandom(this->location_list.size());
}

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

	ofSeedRandom(39);

	int param = ofGetFrameNum() % 120;
	if (param == 0) {
	
		this->camera_index = this->prev_index;
		this->prev_index = this->target_index;
		this->target_index = (int)(ofRandom(1000) + ofGetFrameNum()) % this->location_list.size();
	}

	if (param <= 60) {
	
		auto tmp = this->location_list[this->prev_index] - this->location_list[this->camera_index];
		this->camera_location = this->location_list[this->camera_index] + tmp * (param / 60.f);

		tmp = this->location_list[this->target_index] - this->location_list[this->prev_index];
		this->target_location = this->location_list[prev_index] + tmp * (param / 60.f);
	}
}

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

	this->cam.setPosition(this->camera_location);
	this->cam.lookAt(this->target_location);
	this->cam.begin();

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

		ofPushMatrix();
		ofTranslate(this->location_list[i]);
		ofRotateX(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));
		ofRotateY(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));
		ofRotateZ(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

		
		char noise_value = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, this->location_list[i].z * 0.008, ofGetFrameNum() * 0.01), 0, 1, '0', 'Z');
		auto path = font.getCharacterAsPoints(noise_value, true, false);
		auto outline = path.getOutline();

		ofFill();
		i == this->target_index ? ofSetColor(239, 0, 0) : ofSetColor(239);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			if (outline_index != 0) { ofNextContour(true); }

			auto vertices = outline[outline_index].getVertices();
			for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

				auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);
				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			if (outline_index != 0) { ofNextContour(true); }

			auto vertices = outline[outline_index].getVertices();
			for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

				auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);
				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}

	this->cam.end();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 30, true, true, true);

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

auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

location = glm::normalize(location) * ofRandom(150, 200);

this->location_list.push_back(location);

}

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

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

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

}

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

void ofApp::update() {

ofSeedRandom(39);

int param = ofGetFrameNum() % 120;

if (param == 0) {

this->camera_index = this->prev_index;

this->prev_index = this->target_index;

this->target_index = (int)(ofRandom(1000) + ofGetFrameNum()) % this->location_list.size();

}

if (param <= 60) {

auto tmp = this->location_list[this->prev_index] - this->location_list[this->camera_index];

this->camera_location = this->location_list[this->camera_index] + tmp * (param / 60.f);

tmp = this->location_list[this->target_index] - this->location_list[this->prev_index];

this->target_location = this->location_list[prev_index] + tmp * (param / 60.f);

}

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

void ofApp::draw() {

this->cam.setPosition(this->camera_location);

this->cam.lookAt(this->target_location);

this->cam.begin();

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

ofPushMatrix();

ofTranslate(this->location_list[i]);

ofRotateX(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

ofRotateY(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

ofRotateZ(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

char noise_value = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, this->location_list[i].z * 0.008, ofGetFrameNum() * 0.01), 0, 1, '0', 'Z');

auto path = font.getCharacterAsPoints(noise_value, true, false);

auto outline = path.getOutline();

ofFill();

i == this->target_index ? ofSetColor(239, 0, 0) : ofSetColor(239);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getVertices();

for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);

ofVertex(location);

}

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getVertices();

for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);

ofVertex(location);

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200111

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年1月10日2020年1月10日

Focus to red actor of flock. openFrameworks

[ Movie ]

[ About ]
群れアルゴリズムで特定の個体を追従する。

Focus to red actor of flock.

[ 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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	int number_of_particle;
	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

int number_of_particle;

vector<unique_ptr<Actor>> actor_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto actor = make_unique<Actor>(ofColor(255, 0, 0));
	this->actor_list.push_back(move(actor));

	this->number_of_particle = 200;
	for (int i = 0; i < this->number_of_particle; i++) {

		auto actor = make_unique<Actor>();
		this->actor_list.push_back(move(actor));
	}
}

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

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

		actor->think(this->actor_list);
	}

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

		actor->update();
	}
}

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

	this->cam.lookAt(this->actor_list.front()->get_location());
	this->cam.setPosition(this->actor_list.front()->get_last_log() - glm::vec3(0, 0, -200));
	this->cam.begin();

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

		actor->draw();
	}

	this->cam.end();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

auto actor = make_unique<Actor>(ofColor(255, 0, 0));

this->actor_list.push_back(move(actor));

this->number_of_particle = 200;

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

auto actor = make_unique<Actor>();

this->actor_list.push_back(move(actor));

}

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

void ofApp::update() {

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

actor->think(this->actor_list);

}

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

actor->update();

}

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

void ofApp::draw() {

this->cam.lookAt(this->actor_list.front()->get_location());

this->cam.setPosition(this->actor_list.front()->get_last_log() - glm::vec3(0, 0, -200));

this->cam.begin();

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

actor->draw();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Actor {
public:
	Actor();
	Actor(ofColor color);
	~Actor();

	void think(vector<unique_ptr<Actor>>& particles);
	void update();
	void draw();
	glm::vec3 separate(vector<unique_ptr<Actor>>& particles);
	glm::vec3 align(vector<unique_ptr<Actor>>& particles);
	glm::vec3 cohesion(vector<unique_ptr<Actor>>& particles);
	glm::vec3 seek(glm::vec3 target);
	void applyForce(glm::vec3 force);

	glm::vec3 get_location();
	glm::vec3 get_last_log();

private:
	glm::vec3 location;
	glm::vec3 velocity;
	glm::vec3 acceleration;
	deque<glm::vec3> log;

	float range;
	float max_force;
	float max_speed;
	int len;
	ofColor color;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

Actor();

Actor(ofColor color);

~Actor();

void think(vector<unique_ptr<Actor>>& particles);

void update();

void draw();

glm::vec3 separate(vector<unique_ptr<Actor>>& particles);

glm::vec3 align(vector<unique_ptr<Actor>>& particles);

glm::vec3 cohesion(vector<unique_ptr<Actor>>& particles);

glm::vec3 seek(glm::vec3 target);

void applyForce(glm::vec3 force);

glm::vec3 get_location();

glm::vec3 get_last_log();

private:

glm::vec3 location;

glm::vec3 velocity;

glm::vec3 acceleration;

deque<glm::vec3> log;

float range;

float max_force;

float max_speed;

int len;

ofColor color;

};

#include "Actor.h"

//--------------------------------------------------------------
Actor::Actor() : Actor(ofColor(39)) { }

//--------------------------------------------------------------
Actor::Actor(ofColor color) {

	this->location = glm::vec3(ofRandom(-300, 300), ofRandom(-300, 300), ofRandom(-300, 300));
	this->velocity = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

	this->range = 40;
	this->max_force = 0.5;
	this->max_speed = 6;

	this->color = color;
	this->len = 30;
}

//--------------------------------------------------------------
Actor::~Actor() {

}

//--------------------------------------------------------------
void Actor::think(vector<unique_ptr<Actor>>& Actors) {

	// 分離
	glm::vec3 separate = this->separate(Actors);
	this->applyForce(separate * 1.05);

	// 整列
	glm::vec3 align = this->align(Actors);
	this->applyForce(align);

	// 結合
	glm::vec3 cohesion = this->cohesion(Actors);
	this->applyForce(cohesion);

	// 自我
	if (glm::length(this->velocity) > 0) {

		glm::vec3 feature = this->location + glm::normalize(velocity) * this->range;
		glm::vec3 target = feature + glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1))) * this->range * 0.5;
		glm::vec3 ego = this->seek(target);

		this->applyForce(ego);
	}

	// 境界
	if (glm::length(this->location - glm::vec3()) > 600) {

		glm::vec3 area = this->seek(glm::vec3());
		this->applyForce(area * 5);
	}
}

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

	// 前進
	this->velocity += this->acceleration;
	if (glm::length(this->velocity) > this->max_speed) {

		this->velocity = glm::normalize(this->velocity) * this->max_speed;
	}
	this->location += this->velocity;
	this->acceleration *= 0;
	this->velocity *= 0.9;

	this->log.push_front(this->location);
	while (this->log.size() > this->len) {

		this->log.pop_back();
	}
}

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

	ofSetColor(color);
	ofDrawSphere(this->location, 3);
	for (int i = 0; i < this->log.size() - 1; i++) {

		ofSetColor(color, ofMap(i, 0, this->log.size() - 1, 255, 0));
		ofDrawLine(this->log[i], this->log[i + 1]);
	}
}

//--------------------------------------------------------------
glm::vec3 Actor::separate(vector<unique_ptr<Actor>>& Actors) {

	float tmp_range = this->range * 0.5;

	glm::vec3 result;
	glm::vec3 sum;
	int count = 0;
	for (auto& other : Actors) {

		glm::vec3 difference = this->location - other->location;
		float len = glm::length(difference);
		if (len > 0 && len < tmp_range) {

			sum += glm::normalize(difference);
			count++;
		}
	}

	if (count > 0) {

		glm::vec3 avg = sum / count;
		avg = avg * this->max_speed;
		if (glm::length(avg) > this->max_speed) {

			avg = glm::normalize(avg) * this->max_speed;
		}
		glm::vec3 steer = avg - this->velocity;
		if (glm::length(steer) > this->max_force) {

			steer = glm::normalize(steer) * this->max_force;
		}
		result = steer;
	}

	return result;
}

//--------------------------------------------------------------
glm::vec3 Actor::align(vector<unique_ptr<Actor>>& Actors) {

	float tmp_range = this->range;

	glm::vec3 result;
	glm::vec3 sum;
	int count = 0;
	for (auto& other : Actors) {

		glm::vec3 difference = this->location - other->location;
		float len = glm::length(difference);
		if (len > 0 && len < tmp_range) {

			sum += other->velocity;
			count++;
		}
	}

	if (count > 0) {

		glm::vec3 avg = sum / count;
		avg = avg * this->max_speed;
		if (glm::length(avg) > this->max_speed) {

			avg = glm::normalize(avg) * this->max_speed;
		}
		glm::vec3 steer = avg - this->velocity;
		if (glm::length(steer) > this->max_force) {

			steer = glm::normalize(steer) * this->max_force;
		}
		result = steer;
	}

	return result;
}

//--------------------------------------------------------------
glm::vec3 Actor::cohesion(vector<unique_ptr<Actor>>& Actors) {

	float tmp_range = this->range * 0.5;

	glm::vec3 result;
	glm::vec3 sum;
	int count = 0;
	for (auto& other : Actors) {

		glm::vec3 difference = this->location - other->location;
		float len = glm::length(difference);
		if (len > 0 && len < tmp_range) {

			sum += other->location;
			count++;
		}
	}

	if (count > 0) {

		result = this->seek(sum / count);
	}

	return result;
}

//--------------------------------------------------------------
glm::vec3 Actor::seek(glm::vec3 target) {

	glm::vec3 desired = target - this->location;
	float distance = glm::length(desired);
	desired = glm::normalize(desired);
	desired *= distance < this->range ? ofMap(distance, 0, this->range, 0, this->max_speed) : max_speed;
	glm::vec3 steer = desired - this->velocity;
	if (glm::length(steer) > this->max_force) {

		steer = glm::normalize(steer) * this->max_force;
	}
	return steer;
}

//--------------------------------------------------------------
void Actor::applyForce(glm::vec3 force) {

	this->acceleration += force;
}

//--------------------------------------------------------------
glm::vec3 Actor::get_location() {

	return this->location;
}

//--------------------------------------------------------------
glm::vec3 Actor::get_last_log() {

	return this->log.back();
}

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#include "Actor.h"

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

Actor::Actor() : Actor(ofColor(39)) { }

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

Actor::Actor(ofColor color) {

this->location = glm::vec3(ofRandom(-300, 300), ofRandom(-300, 300), ofRandom(-300, 300));

this->velocity = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

this->range = 40;

this->max_force = 0.5;

this->max_speed = 6;

this->color = color;

this->len = 30;

}

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

Actor::~Actor() {

}

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

void Actor::think(vector<unique_ptr<Actor>>& Actors) {

// 分離

glm::vec3 separate = this->separate(Actors);

this->applyForce(separate * 1.05);

// 整列

glm::vec3 align = this->align(Actors);

this->applyForce(align);

// 結合

glm::vec3 cohesion = this->cohesion(Actors);

this->applyForce(cohesion);

// 自我

if (glm::length(this->velocity) > 0) {

glm::vec3 feature = this->location + glm::normalize(velocity) * this->range;

glm::vec3 target = feature + glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1))) * this->range * 0.5;

glm::vec3 ego = this->seek(target);

this->applyForce(ego);

}

// 境界

if (glm::length(this->location - glm::vec3()) > 600) {

glm::vec3 area = this->seek(glm::vec3());

this->applyForce(area * 5);

}

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

void Actor::update() {

// 前進

this->velocity += this->acceleration;

if (glm::length(this->velocity) > this->max_speed) {

this->velocity = glm::normalize(this->velocity) * this->max_speed;

}

this->location += this->velocity;

this->acceleration *= 0;

this->velocity *= 0.9;

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

while (this->log.size() > this->len) {

this->log.pop_back();

}

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

void Actor::draw() {

ofSetColor(color);

ofDrawSphere(this->location, 3);

for (int i = 0; i < this->log.size() - 1; i++) {

ofSetColor(color, ofMap(i, 0, this->log.size() - 1, 255, 0));

ofDrawLine(this->log[i], this->log[i + 1]);

}

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

glm::vec3 Actor::separate(vector<unique_ptr<Actor>>& Actors) {

float tmp_range = this->range * 0.5;

glm::vec3 result;

glm::vec3 sum;

int count = 0;

for (auto& other : Actors) {

glm::vec3 difference = this->location - other->location;

float len = glm::length(difference);

if (len > 0 && len < tmp_range) {

sum += glm::normalize(difference);

count++;

}

if (count > 0) {

glm::vec3 avg = sum / count;

avg = avg * this->max_speed;

if (glm::length(avg) > this->max_speed) {

avg = glm::normalize(avg) * this->max_speed;

}

glm::vec3 steer = avg - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

result = steer;

}

return result;

}

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

glm::vec3 Actor::align(vector<unique_ptr<Actor>>& Actors) {

float tmp_range = this->range;

glm::vec3 result;

glm::vec3 sum;

int count = 0;

for (auto& other : Actors) {

glm::vec3 difference = this->location - other->location;

float len = glm::length(difference);

if (len > 0 && len < tmp_range) {

sum += other->velocity;

count++;

}

if (count > 0) {

glm::vec3 avg = sum / count;

avg = avg * this->max_speed;

if (glm::length(avg) > this->max_speed) {

avg = glm::normalize(avg) * this->max_speed;

}

glm::vec3 steer = avg - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

result = steer;

}

return result;

}

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

glm::vec3 Actor::cohesion(vector<unique_ptr<Actor>>& Actors) {

float tmp_range = this->range * 0.5;

glm::vec3 result;

glm::vec3 sum;

int count = 0;

for (auto& other : Actors) {

glm::vec3 difference = this->location - other->location;

float len = glm::length(difference);

if (len > 0 && len < tmp_range) {

sum += other->location;

count++;

}

if (count > 0) {

result = this->seek(sum / count);

}

return result;

}

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

glm::vec3 Actor::seek(glm::vec3 target) {

glm::vec3 desired = target - this->location;

float distance = glm::length(desired);

desired = glm::normalize(desired);

desired *= distance < this->range ? ofMap(distance, 0, this->range, 0, this->max_speed) : max_speed;

glm::vec3 steer = desired - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

return steer;

}

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

void Actor::applyForce(glm::vec3 force) {

this->acceleration += force;

}

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

glm::vec3 Actor::get_location() {

return this->location;

}

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

glm::vec3 Actor::get_last_log() {

return this->log.back();

}

[ Link ]
https://github.com/junkiyoshi/Insta20200110

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