Broken color arrows. Draw by openFrameworks – プログラミング de 落描き

[ Video ]

[ About ]
物理演算のポリゴンで矢印を作る。
Make arrows with physics polygons.

最近、新しく開発環境のPCを買い換えました。
Recently, I bought a new PC for my development environment.

[ 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;

	vector<ofColor> base_color_list;
	vector<glm::vec2> noise_param_list;

	vector<shared_ptr<ofxBox2dPolygon>> polygon_list;
	vector<float> polygon_life_list;
	vector<ofColor> polygon_color_list;
};

#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;

vector<ofColor> base_color_list;

vector<glm::vec2> noise_param_list;

vector<shared_ptr<ofxBox2dPolygon>> polygon_list;

vector<float> polygon_life_list;

vector<ofColor> polygon_color_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(1);

	this->box2d.init();
	this->box2d.setGravity(0, 30);
	this->box2d.createBounds();
	this->box2d.setFPS(60);

	for (int i = 0; i < 4; i++) {

		this->noise_param_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));
		
		ofColor base_color;
		base_color.setHsb(ofMap(i, 0, 4, 0, 255), 230, 255);
		this->base_color_list.push_back(base_color);
	}
}

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

	if (ofGetFrameNum() % 8 == 0) {

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

			auto location = glm::vec2(
				ofMap(ofNoise(this->noise_param_list[i].x, ofGetFrameNum() * 0.0075), 0, 1, 20, 700),
				ofMap(ofNoise(this->noise_param_list[i].y, ofGetFrameNum() * 0.0075), 0, 1, 100, 360));
			auto target = glm::vec2(
				ofMap(ofNoise(this->noise_param_list[i].x, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 20, 700),
				ofMap(ofNoise(this->noise_param_list[i].y, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 100, 360));

			auto size = 30;
			auto angle = std::atan2(target.y - location.y, target.x - location.x);

			vector<glm::vec2> vertices;
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));
			vertices.push_back(location + glm::vec2(size * cos(angle), size * sin(angle)));
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
			vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

			auto polygon = make_shared<ofxBox2dPolygon>();
			polygon->addTriangle(vertices[0], vertices[1], vertices[2]);
			polygon->setPhysics(1.0, 0.7, 0.3);
			polygon->create(box2d.getWorld());

			this->polygon_list.push_back(move(polygon));
			this->polygon_life_list.push_back(128);
			this->polygon_color_list.push_back(this->base_color_list[i]);

			polygon = make_shared<ofxBox2dPolygon>();
			polygon->addTriangle(vertices[0], vertices[2], vertices[4]);
			polygon->setPhysics(1.0, 0.7, 0.3);
			polygon->create(box2d.getWorld());

			this->polygon_list.push_back(move(polygon));
			this->polygon_life_list.push_back(128);
			this->polygon_color_list.push_back(this->base_color_list[i]);

			polygon = make_shared<ofxBox2dPolygon>();
			polygon->addTriangle(vertices[4], vertices[2], vertices[3]);
			polygon->setPhysics(1.0, 0.7, 0.3);
			polygon->create(box2d.getWorld());

			this->polygon_list.push_back(move(polygon));
			this->polygon_life_list.push_back(128);
			this->polygon_color_list.push_back(this->base_color_list[i]);

			polygon = make_shared<ofxBox2dPolygon>();
			polygon->addTriangle(vertices[5], vertices[6], vertices[7]);
			polygon->setPhysics(1.0, 0.7, 0.3);
			polygon->create(box2d.getWorld());

			this->polygon_list.push_back(move(polygon));
			this->polygon_life_list.push_back(128);
			this->polygon_color_list.push_back(this->base_color_list[i]);

			polygon = make_shared<ofxBox2dPolygon>();
			polygon->addTriangle(vertices[5], vertices[7], vertices[8]);
			polygon->setPhysics(1.0, 0.7, 0.3);
			polygon->create(box2d.getWorld());

			this->polygon_list.push_back(move(polygon));
			this->polygon_life_list.push_back(128);
			this->polygon_color_list.push_back(this->base_color_list[i]);
		}
	}

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

		this->polygon_life_list[i] -= 1;

		if (this->polygon_life_list[i] < 0) {

			this->polygon_list[i]->destroy();
			this->polygon_list.erase(this->polygon_list.begin() + i);
			this->polygon_life_list.erase(this->polygon_life_list.begin() + i);
			this->polygon_color_list.erase(this->polygon_color_list.begin() + i);
		}
	}

	this->box2d.update();
}

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

	ofNoFill();
	ofSetColor(39);

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



		auto location = glm::vec2(
			ofMap(ofNoise(this->noise_param_list[i].x, ofGetFrameNum() * 0.0075), 0, 1, 20, 700),
			ofMap(ofNoise(this->noise_param_list[i].y, ofGetFrameNum() * 0.0075), 0, 1, 100, 360));
		auto target = glm::vec2(
			ofMap(ofNoise(this->noise_param_list[i].x, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 20, 700),
			ofMap(ofNoise(this->noise_param_list[i].y, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 100, 360));

		auto size = 30;
		auto angle = std::atan2(target.y - location.y, target.x - location.x);

		ofSetColor(this->base_color_list[i]);
		ofNoFill();
		ofBeginShape();
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));
		ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle)));
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
		ofEndShape();

		ofBeginShape();
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
		ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
		ofEndShape();
	}

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

		if (this->polygon_life_list[i] > 64) {

			ofSetColor(this->polygon_color_list[i]);
		}
		else {

			ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_life_list[i], 64, 0, 255, 0));
		}

		this->polygon_list[i]->draw();
	}

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

		if (this->polygon_life_list[i] > 64) {

			ofSetColor(this->polygon_color_list[i], 128);
		}
		else {

			ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_life_list[i], 64, 0, 128, 0));
		}

		this->polygon_list[i]->draw();
	}
}

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

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(1);

this->box2d.init();

this->box2d.setGravity(0, 30);

this->box2d.createBounds();

this->box2d.setFPS(60);

for (int i = 0; i < 4; i++) {

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

ofColor base_color;

base_color.setHsb(ofMap(i, 0, 4, 0, 255), 230, 255);

this->base_color_list.push_back(base_color);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 8 == 0) {

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

auto location = glm::vec2(

ofMap(ofNoise(this->noise_param_list[i].x, ofGetFrameNum() * 0.0075), 0, 1, 20, 700),

ofMap(ofNoise(this->noise_param_list[i].y, ofGetFrameNum() * 0.0075), 0, 1, 100, 360));

auto target = glm::vec2(

ofMap(ofNoise(this->noise_param_list[i].x, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 20, 700),

ofMap(ofNoise(this->noise_param_list[i].y, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 100, 360));

auto size = 30;

auto angle = std::atan2(target.y - location.y, target.x - location.x);

vector<glm::vec2> vertices;

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));

vertices.push_back(location + glm::vec2(size * cos(angle), size * sin(angle)));

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

vertices.push_back(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

auto polygon = make_shared<ofxBox2dPolygon>();

polygon->addTriangle(vertices[0], vertices[1], vertices[2]);

polygon->setPhysics(1.0, 0.7, 0.3);

polygon->create(box2d.getWorld());

this->polygon_list.push_back(move(polygon));

this->polygon_life_list.push_back(128);

this->polygon_color_list.push_back(this->base_color_list[i]);

polygon = make_shared<ofxBox2dPolygon>();

polygon->addTriangle(vertices[0], vertices[2], vertices[4]);

polygon->setPhysics(1.0, 0.7, 0.3);

polygon->create(box2d.getWorld());

this->polygon_list.push_back(move(polygon));

this->polygon_life_list.push_back(128);

this->polygon_color_list.push_back(this->base_color_list[i]);

polygon = make_shared<ofxBox2dPolygon>();

polygon->addTriangle(vertices[4], vertices[2], vertices[3]);

polygon->setPhysics(1.0, 0.7, 0.3);

polygon->create(box2d.getWorld());

this->polygon_list.push_back(move(polygon));

this->polygon_life_list.push_back(128);

this->polygon_color_list.push_back(this->base_color_list[i]);

polygon = make_shared<ofxBox2dPolygon>();

polygon->addTriangle(vertices[5], vertices[6], vertices[7]);

polygon->setPhysics(1.0, 0.7, 0.3);

polygon->create(box2d.getWorld());

this->polygon_list.push_back(move(polygon));

this->polygon_life_list.push_back(128);

this->polygon_color_list.push_back(this->base_color_list[i]);

polygon = make_shared<ofxBox2dPolygon>();

polygon->addTriangle(vertices[5], vertices[7], vertices[8]);

polygon->setPhysics(1.0, 0.7, 0.3);

polygon->create(box2d.getWorld());

this->polygon_list.push_back(move(polygon));

this->polygon_life_list.push_back(128);

this->polygon_color_list.push_back(this->base_color_list[i]);

}

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

this->polygon_life_list[i] -= 1;

if (this->polygon_life_list[i] < 0) {

this->polygon_list[i]->destroy();

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

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

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

}

this->box2d.update();

}

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

void ofApp::draw() {

ofNoFill();

ofSetColor(39);

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

auto location = glm::vec2(

ofMap(ofNoise(this->noise_param_list[i].x, ofGetFrameNum() * 0.0075), 0, 1, 20, 700),

ofMap(ofNoise(this->noise_param_list[i].y, ofGetFrameNum() * 0.0075), 0, 1, 100, 360));

auto target = glm::vec2(

ofMap(ofNoise(this->noise_param_list[i].x, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 20, 700),

ofMap(ofNoise(this->noise_param_list[i].y, (ofGetFrameNum() + 1) * 0.0075), 0, 1, 100, 360));

auto size = 30;

auto angle = std::atan2(target.y - location.y, target.x - location.x);

ofSetColor(this->base_color_list[i]);

ofNoFill();

ofBeginShape();

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));

ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle)));

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofEndShape();

ofBeginShape();

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofEndShape();

}

ofNoFill();

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

if (this->polygon_life_list[i] > 64) {

ofSetColor(this->polygon_color_list[i]);

}

else {

ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_life_list[i], 64, 0, 255, 0));

}

this->polygon_list[i]->draw();

}

ofFill();

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

if (this->polygon_life_list[i] > 64) {

ofSetColor(this->polygon_color_list[i], 128);

}

else {

ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_life_list[i], 64, 0, 128, 0));

}

this->polygon_list[i]->draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210829

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年7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	31