programming – ページ 20 – プログラミング de 落描き

2023年7月19日

Square vertex. Draw by openFrameworks

[ Video ]

[ About ]
渦四角。

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

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

	glm::vec2 make_point(float len, int 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) {};

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

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetColor(239);
	ofNoFill();
	ofSetLineWidth(2);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);	
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int param = 0;
	int param_scale = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 1, 5);

	ofBeginShape();
	for (float len = 0; len < 780; len += 0.05) {

		param = len * param_scale;
		ofVertex(this->make_point(len, param));
	}
	ofEndShape(false);
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(float len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(239);

ofNoFill();

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int param = 0;

int param_scale = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 1, 5);

ofBeginShape();

for (float len = 0; len < 780; len += 0.05) {

param = len * param_scale;

ofVertex(this->make_point(len, param));

}

ofEndShape(false);

}

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

glm::vec2 ofApp::make_point(float len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230719

2023年7月18日

Sphere, attack. Draw by openFrameworks

[ Video ]

[ About ]
球体出現。

[ 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;
	ofMesh face, line;
};

#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;

ofMesh face, line;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetLineWidth(1.5);

	ofEnableDepthTest();
	ofSetLineWidth(2);

	this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	this->face.clear();
	this->line.clear();

	int radius_start = 10 - ofGetFrameNum() % 10;
	for (int radius = radius_start; radius <= 500; radius += 10) {

		int start_index = this->line.getNumVertices();
		int index = start_index;
		for (int deg = 0; deg < 360; deg += 1) {

			auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0);

			auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 1);
			this->line.addVertex(vertex);

			if (deg > 0) {

				this->line.addIndex(index - 1);
				this->line.addIndex(index);
			}

			index++;

			int next_radius = radius + 10;
			int next_z = next_radius > 200 ? 0 : ofMap(next_radius, 0, 200, -1 * pow(200 - next_radius, 1.1), 0);
			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z));
			vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z));

			face.addVertices(vertices);

			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

		}

		this->line.addIndex(this->line.getNumVertices() - 1);
		this->line.addIndex(start_index);
	}

	int index_span = 15;
	for (int index = 0; index < this->line.getNumVertices() - 360; index += index_span) {

		this->line.addIndex(index);
		this->line.addIndex(index + 360);
	}
}

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

	this->cam.begin();
	ofRotateX(-35);

	ofSetColor(2554);
	this->face.draw();

	ofSetColor(0);
	this->line.drawWireframe();

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

		int radius = (int)(ofRandom(500) + ofGetFrameNum() * ofRandom(3, 8)) % 500;
		auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0);
		z += ofRandom(10, 40);
		float deg = ofRandom(360);
		auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 1);

		ofDrawSphere(vertex, 3);
	}

	this->cam.end();

}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(1.5);

ofEnableDepthTest();

ofSetLineWidth(2);

this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

int radius_start = 10 - ofGetFrameNum() % 10;

for (int radius = radius_start; radius <= 500; radius += 10) {

int start_index = this->line.getNumVertices();

int index = start_index;

for (int deg = 0; deg < 360; deg += 1) {

auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0);

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 1);

this->line.addVertex(vertex);

if (deg > 0) {

this->line.addIndex(index - 1);

this->line.addIndex(index);

}

index++;

int next_radius = radius + 10;

int next_z = next_radius > 200 ? 0 : ofMap(next_radius, 0, 200, -1 * pow(200 - next_radius, 1.1), 0);

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z));

vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z));

face.addVertices(vertices);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

}

this->line.addIndex(this->line.getNumVertices() - 1);

this->line.addIndex(start_index);

}

int index_span = 15;

for (int index = 0; index < this->line.getNumVertices() - 360; index += index_span) {

this->line.addIndex(index);

this->line.addIndex(index + 360);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(-35);

ofSetColor(2554);

this->face.draw();

ofSetColor(0);

this->line.drawWireframe();

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

int radius = (int)(ofRandom(500) + ofGetFrameNum() * ofRandom(3, 8)) % 500;

auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0);

z += ofRandom(10, 40);

float deg = ofRandom(360);

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 1);

ofDrawSphere(vertex, 3);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230718

2023年7月17日

Squares transit. Draw by openFrameworks

[ Video ]

[ About ]
マス目運動。

[ 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) {};

	float len;
	vector<glm::vec2> start_location_list;
	vector<vector<glm::vec2>> location_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) {};

float len;

vector<glm::vec2> start_location_list;

vector<vector<glm::vec2>> location_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);

	this->len = 30;
	for (float x = 0; x < ofGetWidth(); x += this->len) {

		for (float y = 0; y < ofGetHeight(); y += this->len) {

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

	for (int i = 0; i < 16; i++) {

		int r = ofRandom(this->start_location_list.size());

		auto log_list = vector<glm::vec2>();
		log_list.push_back(this->start_location_list[r]);
		this->location_list.push_back(log_list);
	}
}

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

	if (ofGetFrameNum() % 2 == 0) {

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

			int r = ofRandom(4);
			int deg_start = r * 90;
			for (int deg = deg_start; deg < deg_start + 360; deg += 90) {

				auto tmp_location = log_list.back() + glm::vec2(this->len * cos(deg * DEG_TO_RAD), this->len * sin(deg * DEG_TO_RAD));
				if (tmp_location.x < 0 || tmp_location.x > ofGetWidth() - this->len || tmp_location.y < 0 || tmp_location.y > ofGetHeight() - this->len) {

					continue;
				}

				bool flag = false;
				for (int i = 0; i < log_list.size(); i++) {

					if (tmp_location == log_list[i] && deg_start != deg && deg_start % 360 == deg % 360){

						flag = true;
						break;
					}
				}
				if (flag) { continue; }

				log_list.push_back(tmp_location);
				break;
			}

			while (log_list.size() > 5) {

				log_list.erase(log_list.begin());
			}
		}
	}
}

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

	int color_index = 0;
	for (auto& log_list : this->location_list) {

		for (int i = 0; i < log_list.size(); i++) {

			ofFill();
			ofSetColor(ofColor(0, ofMap(i, 0, log_list.size(), 32, 200)));
			ofDrawRectangle(log_list[i], this->len, this->len);

			ofNoFill();
			ofSetColor(0);
			ofDrawRectangle(log_list[i], this->len, this->len);
		}
	}

	ofSetColor(0, 32);
	ofNoFill();
	for (float x = 0; x < ofGetWidth(); x += this->len) {

		for (float y = 0; y < ofGetHeight(); y += this->len) {

			ofDrawRectangle(glm::vec3(x, y, 0), this->len, this->len);
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(1.5);

this->len = 30;

for (float x = 0; x < ofGetWidth(); x += this->len) {

for (float y = 0; y < ofGetHeight(); y += this->len) {

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

}

for (int i = 0; i < 16; i++) {

int r = ofRandom(this->start_location_list.size());

auto log_list = vector<glm::vec2>();

log_list.push_back(this->start_location_list[r]);

this->location_list.push_back(log_list);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 2 == 0) {

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

int r = ofRandom(4);

int deg_start = r * 90;

for (int deg = deg_start; deg < deg_start + 360; deg += 90) {

auto tmp_location = log_list.back() + glm::vec2(this->len * cos(deg * DEG_TO_RAD), this->len * sin(deg * DEG_TO_RAD));

if (tmp_location.x < 0 || tmp_location.x > ofGetWidth() - this->len || tmp_location.y < 0 || tmp_location.y > ofGetHeight() - this->len) {

continue;

}

bool flag = false;

for (int i = 0; i < log_list.size(); i++) {

if (tmp_location == log_list[i] && deg_start != deg && deg_start % 360 == deg % 360){

flag = true;

break;

}

if (flag) { continue; }

log_list.push_back(tmp_location);

break;

}

while (log_list.size() > 5) {

log_list.erase(log_list.begin());

}

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

void ofApp::draw() {

int color_index = 0;

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

for (int i = 0; i < log_list.size(); i++) {

ofFill();

ofSetColor(ofColor(0, ofMap(i, 0, log_list.size(), 32, 200)));

ofDrawRectangle(log_list[i], this->len, this->len);

ofNoFill();

ofSetColor(0);

ofDrawRectangle(log_list[i], this->len, this->len);

}

ofSetColor(0, 32);

ofNoFill();

for (float x = 0; x < ofGetWidth(); x += this->len) {

for (float y = 0; y < ofGetHeight(); y += this->len) {

ofDrawRectangle(glm::vec3(x, y, 0), this->len, this->len);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230717

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