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領域に閉じ込められた帯の群れ。
A group of bands trapped in a realm.
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#pragma once #include "ofMain.h" #include "ofxBullet.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) {}; ofCamera cam; ofxBulletWorldRigid world; unique_ptr<ofxBulletCustomShape> bounds_shape; vector<unique_ptr<ofxBulletSphere>> sphere_list; vector<vector<glm::vec3>> log_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofEnableDepthTest(); // Initialize ofxBulletWorld this->cam.setPosition(glm::vec3(0, 3.f, -5.f)); this->cam.lookAt(glm::vec3(0, 0, 0), glm::vec3(0, -1, 0)); this->world.setup(); this->world.enableGrabbing(); this->world.setCamera(&this->cam); this->world.setGravity(ofVec3f()); // Create Big Box ofVec3f start_location; ofPoint dimens; float bounds_width = 300; float h_width = bounds_width * 0.5; float depth = 10.; float h_depth = depth * 0.5; this->bounds_shape.reset(new ofxBulletCustomShape()); this->bounds_shape->create(world.world, ofVec3f(0, 0, 0), 10.); for (int i = 0; i < 6; i++) { if (i == 0) { // ground // start_location.set(0., h_width + h_depth, 0.); dimens.set(bounds_width, depth, bounds_width); } else if (i == 1) { // back wall // start_location.set(0, 0, h_width + h_depth); dimens.set(bounds_width, bounds_width, depth); } else if (i == 2) { // right wall // start_location.set(h_width + h_depth, 0, 0.); dimens.set(depth, bounds_width, bounds_width); } else if (i == 3) { // left wall // start_location.set(-h_width - h_depth, 0, 0.); dimens.set(depth, bounds_width, bounds_width); } else if (i == 4) { // ceiling // start_location.set(0, -h_width - h_depth, 0.); dimens.set(bounds_width, depth, bounds_width); } else if (i == 5) { // front wall // start_location.set(0, 0, -h_width - h_depth); dimens.set(bounds_width, bounds_width, depth); } btBoxShape* boxShape = ofBtGetBoxCollisionShape(dimens.x, dimens.y, dimens.z); this->bounds_shape->addShape(boxShape, start_location); } this->bounds_shape->add(); // Create Spheres for (int i = 0; i < 255; i++) { unique_ptr<ofxBulletSphere> sphere(new ofxBulletSphere); float size = 5; sphere->create(this->world.world, ofVec3f(ofRandom(-100, 100), ofRandom(-100, 100), ofRandom(-100, 100)), 1, size); sphere->setRestitution(1.0); sphere->add(); this->sphere_list.push_back(move(sphere)); vector<glm::vec3> log; this->log_list.push_back(log); } } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); for (int i = 0; i < this->sphere_list.size(); i++) { this->log_list[i].push_back(this->sphere_list[i]->getPosition()); while (this->log_list[i].size() > 30) { this->log_list[i].erase(this->log_list[i].begin()); } } // Big Box Moving To Center if (!ofGetMousePressed()) { ofVec3f diff = ofVec3f(0, 0, 0) - bounds_shape->getPosition(); diff *= 500.f; bounds_shape->applyCentralForce(diff); } // Compute Spheres Relation for (int i = 0; i < this->sphere_list.size(); i++) { for (int j = i + 1; j < this->sphere_list.size(); j++) { float distance = this->sphere_list[i]->getPosition().distance(this->sphere_list[j]->getPosition()); if (distance < 80) { ofVec3f diff = this->sphere_list[i]->getPosition() - this->sphere_list[j]->getPosition(); ofMap(distance, 0, 80, 20, -2); this->sphere_list[i]->applyCentralForce(diff); this->sphere_list[j]->applyCentralForce(-diff); } } } this->world.update(); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); // Draw Big Box ofNoFill(); if (ofGetMousePressed()) { ofSetColor(39, 39, 239); } else { ofSetColor(39); } bounds_shape->transformGL(); ofDrawBox(glm::vec3(0, 0, 0), 300); bounds_shape->restoreTransformGL(); for (int i = 0; i < this->sphere_list.size(); i++) { glm::vec3 param; switch ((int)ofRandom(3)) { case 0: param = glm::vec3(5, 0, 0); break; case 1: param = glm::vec3(0, 5, 0); break; case 2: param = glm::vec3(0, 0, 5); break; } ofMesh face, frame; frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); for (int k = 0; k < this->log_list[i].size(); k++) { auto& log = this->log_list[i][k]; face.addVertex(log + param); face.addVertex(log - param); frame.addVertex(log + param); frame.addVertex(log - param); if (k > 0) { face.addIndex(k * 2); face.addIndex(k * 2 - 1); face.addIndex(k * 2 - 2); face.addIndex(k * 2); face.addIndex(k * 2 + 1); face.addIndex(k * 2 - 1); frame.addIndex(k * 2); frame.addIndex(k * 2 - 2); frame.addIndex(k * 2 + 1); frame.addIndex(k * 2 - 1); } } frame.addIndex(0); frame.addIndex(1); frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2); ofSetColor(39); face.drawFaces(); ofSetColor(239); frame.drawWireframe(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |