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Documentation for each project is in progress.
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‎.gitignore

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## Java
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*.class
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*.war
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*.ear
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hs_err_pid*
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## Robovm
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robovm-build/
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## GWT
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war/
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html/war/gwt_bree/
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html/gwt-unitCache/
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.apt_generated/
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html/war/WEB-INF/deploy/
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html/war/WEB-INF/classes/
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.gwt/
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gwt-unitCache/
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www-test/
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.gwt-tmp/
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## Android Studio and Intellij and Android in general
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android/libs/armeabi/
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android/libs/armeabi-v7a/
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android/libs/arm64-v8a/
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android/libs/x86/
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android/libs/x86_64/
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android/gen/
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.idea/
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*.ipr
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*.iws
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*.iml
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out/
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com_crashlytics_export_strings.xml
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## Eclipse
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.classpath
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.project
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.metadata
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**/bin/
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tmp/
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*.tmp
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*.bak
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*.swp
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*~.nib
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local.properties
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.settings/
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.loadpath
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.externalToolBuilders/
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*.launch
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## NetBeans
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**/nbproject/private/
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build/
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nbbuild/
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dist/
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nbdist/
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nbactions.xml
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nb-configuration.xml
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## Gradle
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.gradle
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gradle-app.setting
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build/
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## OS Specific
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.DS_Store
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Thumbs.db
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#core & extension libs/ folders that have no 3rd party dependencies in them
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/gdx/libs
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/backends/gdx-backend-jglfw/libs/
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/backends/gdx-backend-robovm/libs/
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/extensions/gdx-audio/libs/
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/extensions/gdx-box2d/gdx-box2d/libs/
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/extensions/gdx-bullet/libs/
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/extensions/gdx-controllers/gdx-controllers-desktop/libs/
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/extensions/gdx-freetype/libs/
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/extensions/gdx-image/libs/
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/extensions/gdx-setup/gdx-setup.jar
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#ensure gdx-setup.jar works properly
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!/extensions/gdx-setup/src/com/badlogic/gdx/setup/resources/gwt/war
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#directories created by fetch.xml
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/tests/gdx-tests-android/libs
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/tmp/
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#gradle wrapper
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/gradle/
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/gradlew
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/gradlew.bat
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/local.properties

‎AnimatedInterplanetaryCalculator/core/src/com/interplanetaryorbitcalculator/rollercoaster/Body.java

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package com.interplanetaryorbitcalculator.rollercoaster;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Created by Luke on 5/6/2016.
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*/
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public class Body
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{
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public static final double G = 6.67408 * Math.pow(10,-11);
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public static final double sunMass = 1.989 * Math.pow(10,30);
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public static final double earthMass = 5.972 * Math.pow(10,24);
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public static final double AU = 149597870700D;
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public String name;
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public double mass;
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public Orbit orbit;
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public List<Body> satellites = new ArrayList<Body>();
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public Body parentBody;
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public Body(String name, double mass)
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{
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this.name = name;
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this.mass = mass;
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}
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public Body(String name, double mass, Orbit orbit)
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{
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this.name = name;
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this.mass = mass;
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this.orbit = orbit;
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}
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public void addSatellite(Body satellite)
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{
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satellites.add(satellite);
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}
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public Body getSatelliteByName(String name)
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{
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for (int i = 0; i < satellites.size(); i++)
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{
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if (satellites.get(i).name.equalsIgnoreCase(name))
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{
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return satellites.get(i);
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}
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}
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return null;
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}
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public double getSOI()
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{
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//return orbit.getSemiMajorAxis()*Math.pow(mass/);
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return 0;
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}
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}

‎AnimatedInterplanetaryCalculator/core/src/com/interplanetaryorbitcalculator/rollercoaster/MapView.java

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package com.interplanetaryorbitcalculator.rollercoaster;
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import com.badlogic.gdx.ApplicationAdapter;
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import com.badlogic.gdx.ApplicationListener;
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import com.badlogic.gdx.Gdx;
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import com.badlogic.gdx.graphics.*;
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import com.badlogic.gdx.graphics.g2d.SpriteBatch;
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import com.badlogic.gdx.graphics.g3d.*;
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import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute;
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import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight;
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import com.badlogic.gdx.graphics.g3d.utils.CameraInputController;
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import com.badlogic.gdx.graphics.g3d.utils.ModelBuilder;
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import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
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import com.badlogic.gdx.math.Matrix4;
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import com.badlogic.gdx.math.Vector3;
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public class MapView implements ApplicationListener
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{
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public ShapeRenderer renderer;
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public PerspectiveCamera camera;
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public Model earthModel;
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public ModelInstance earthInstance;
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public Model rocketModel;
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public ModelInstance rocketInstance;
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public Matrix4 rocketInitTransform;
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public ModelBatch modelBatch;
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public Environment environment;
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public CameraInputController cameraInputController;
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public double ellX;
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public double ellY;
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public double ellZ;
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public Body rocket;
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public float sF = 1000000;
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public double time=-600;
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@Override
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public void create () {
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renderer = new ShapeRenderer();
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modelBatch = new ModelBatch();
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environment = new Environment();
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environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.4f, 0.4f, 0.4f, 1));
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environment.add(new DirectionalLight().set(0.8f, 0.8f, 0.8f, -1f, -0.8f, -0.2f));
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camera = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
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camera.position.set(0*6371000f*2/sF,2*6371000f*2/sF,0*6371000f*2/sF);
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camera.lookAt(0,0,0);
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camera.near = 1;
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camera.far = 6371000f*4/sF*100;
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camera.update();
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cameraInputController = new CameraInputController(camera);
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Gdx.input.setInputProcessor(cameraInputController);
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ModelBuilder modelBuilder = new ModelBuilder();
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//model = modelBuilder.createBox(6.371f,6.371f,6.371f, new Material(ColorAttribute.createDiffuse(Color.GREEN)), VertexAttributes.Usage.Position | VertexAttributes.Usage.Normal);
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earthModel = modelBuilder.createSphere(6371000f/sF,6371000f/sF,6371000f/sF,100,100, new Material(ColorAttribute.createDiffuse(Color.GREEN)), VertexAttributes.Usage.Position | VertexAttributes.Usage.Normal);
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rocketModel = modelBuilder.createSphere(1,1,1,50,50, new Material(ColorAttribute.createDiffuse(Color.BLUE)), VertexAttributes.Usage.Position | VertexAttributes.Usage.Normal);
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earthInstance = new ModelInstance(earthModel);
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//earthInstance.transform.translate((float)2.5,(float)2.5,(float)2.5);
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System.out.println(earthInstance.transform);
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rocketInstance = new ModelInstance(rocketModel);
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rocketInitTransform = rocketInstance.transform;
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rocket = new Body("rocket", 1000, new Orbit(7371000,1000000+6371000, Math.toRadians(0), 0, 0, 0, Body.G* Body.earthMass));
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//t=0 defined to be 01/15/2007, 12:30AM
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rocket.parentBody = new Body("earth", Body.earthMass, new Orbit(0.98329* Body.AU, 1.0167* Body.AU, Math.toRadians(0.00005), Math.toRadians(-11.26061), Math.toRadians(102.94717), 0, Body.G* Body.sunMass));
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rocket.parentBody.addSatellite(rocket);
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rocket.parentBody.parentBody = new Body("sun", Body.sunMass);
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rocket.parentBody.parentBody.addSatellite(rocket.parentBody);
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//Mars reached periapsis at 06/01/2007, 7:20AM
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rocket.parentBody.parentBody.addSatellite(new Body("mars", 6.39*Math.pow(10, 23), new Orbit(1.3814* Body.AU, 1.666* Body.AU, Math.toRadians(1.85061), Math.toRadians(49.57854), Math.toRadians(336.04084), 11861400, Body.G* Body.sunMass)));
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rocket.parentBody.parentBody.getSatelliteByName("mars").parentBody=rocket.parentBody.parentBody;
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System.out.println(rocket.orbit);
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}
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@Override
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public void render () {
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Gdx.gl.glViewport(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
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Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
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Gdx.graphics.setVSync(true);
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//Vector3 argAxis = new Vector3(0,0,1).rotateRad((float)rocket.orbit.inclination, 0,1,0).rotateRad((float)rocket.orbit.longitude, 0,0,1);
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Vector3 position = rocket.orbit.getPosition(time);//.rotate(argAxis, 180);
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rocketInstance.transform = rocketInstance.transform.setTranslation(position.scl(1f/sF).rotate(90, 1,0,0));
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if (time==0)
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{
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System.out.println(rocket.orbit.getVelocity(time));
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System.out.println(rocket.orbit.getPosition(time));
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rocket.orbit = rocket.orbit.perturbOrbit(time, new Vector3(0,100,0));
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System.out.println(rocket.orbit.getVelocity(time));
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System.out.println(rocket.orbit.getPosition(time));
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System.out.println(rocket.orbit);
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}
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if (time%600==0)
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{
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System.out.println(rocket.orbit.getPosition(time));
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}
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time+=10;
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cameraInputController.update();
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renderer.setProjectionMatrix(camera.combined);
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//System.out.println(rocketInstance.transform);
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renderer.begin(ShapeRenderer.ShapeType.Line);
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renderer.line(-1,0,0,10,0,0);
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renderer.line(0,-1,0,0,10,0);
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renderer.line(0,0,-1,0,0,10);
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float[] par = rocket.orbit.parameterize();
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Vector3 center = new Vector3(par[2]/sF,par[3]/sF,par[4]/sF).rotate(90, 1,0,0);
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Vector3 semiMajorAxis = new Vector3(par[5],par[6],par[7]).rotate(90, 1,0,0);
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Vector3 semiMinorAxis = new Vector3(par[8],par[9],par[10]).rotate(90, 1,0,0);
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float sMaA = par[0]/sF;
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float sMiA = par[1]/sF;
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for (int t = 0; t <= 100; t++)
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{
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double i = ((double)t/100)*(Math.PI*2);
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double x = center.x + sMaA * Math.cos(i) * semiMajorAxis.x + sMiA * Math.sin(i) * semiMinorAxis.x;
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double y = center.y + sMaA * Math.cos(i) * semiMajorAxis.y + sMiA * Math.sin(i) * semiMinorAxis.y;
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double z = center.z + sMaA * Math.cos(i) * semiMajorAxis.z + sMiA * Math.sin(i) * semiMinorAxis.z;
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if (i==0)
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{
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renderer.line((float)x,(float)y,(float)z,(float)x,(float)y,(float)z);
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}
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else
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{
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renderer.line((float)ellX,(float)ellY,(float)ellZ,(float)x,(float)y,(float)z);
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}
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ellX=x;
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ellY=y;
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ellZ=z;
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}
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renderer.end();
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modelBatch.begin(camera);
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modelBatch.render(earthInstance, environment);
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modelBatch.render(rocketInstance, environment);
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modelBatch.end();
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}
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public void dispose()
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{
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earthModel.dispose();
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rocketModel.dispose();
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modelBatch.dispose();
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}
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public void resume()
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{
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}
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public void pause()
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{
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}
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public void resize(int x, int y)
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{
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}
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}

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