First upload

Body.java

@@ -0,0 +1,152 @@
+public class Body {
+
+    public static final double G = 6.673e-11;
+    private double mass;
+    private double px;
+    private double py;
+    private double vx;
+    private double vy;
+    private double fx;
+    private double fy;
+
+    public Body(double mass, double px, double py, double vx, double vy){
+        this.px = px;
+        this.py = py;
+        this.vx = vx;
+        this.vy = vy;
+        this.mass = mass;
+    }
+
+
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    public double getDistance(Body otherBody){
+
+        double x1 = this.getXpos();
+        double x2 = otherBody.getXpos();
+        double y1 = this.getYpos();
+        double y2 = otherBody.getYpos();
+
+
+        double distance = Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2));
+
+
+        return distance;
+    }
+
+    public double getSpeed(){
+
+        return Math.sqrt((this.getXvelo() * this.getXvelo()) + (this.getYvelo() * this.getYvelo()));
+    }
+
+    public double getForceScalar(Body otherBody){
+
+        double distance = this.getDistance(otherBody);
+        double m1 = this.getMass();
+        double m2 = otherBody.getMass();
+
+        double force = G * ((m1 * m2) / distance);
+
+        return force;
+    }
+
+    public double getXforce(Body otherBody){
+
+        double distance = otherBody.getXpos() - this.getXpos();
+        double m1 = this.getMass();
+        double m2 = otherBody.getMass();
+
+        double force = G * ((m1 * m2) / distance);
+
+        return force;
+
+
+    }
+
+    public double getYforce(Body otherBody){
+        
+        double distance = otherBody.getYpos() - this.getYpos();
+        double m1 = this.getMass();
+        double m2 = otherBody.getMass();
+
+        double force = G * ((m1 * m2) / distance);
+
+        return force;
+    }
+
+    public void calcNetForce(Body[] bodies){
+        double netXForce = 0;
+        double netYForce = 0;
+        for(int i = 0; i < bodies.length; i ++){
+            if(this != bodies[i]){
+                netXForce = netXForce + this.getXforce(bodies[i]);
+                netYForce = netYForce + this.getYforce(bodies[i]);
+            }
+        }
+
+        this.fx = netXForce;
+        this.fy = netYForce;
+    }
+
+    public void updateVelocity(){
+        // TODO: Implament updateVelocity
+    }
+
+    public double getXpos(){
+        return this.px;
+    }
+
+    public double getYpos(){
+        return this.py;
+    }
+
+    public double getXvelo(){
+        return this.vx;
+    }
+
+    public double getYvelo(){
+        return this.vy;
+    }
+
+    public double getMass(){
+        return this.mass;
+    }
+
+    public double getNetXforce(){
+        return this.fx;
+    }
+
+    public double getNetYforce(){
+        return this.fy;
+    }
+
+    public static void main(String[] args){
+
+        // Body testBody = new Body(15000, 0, 0, 10, 10);
+        // Body testBody2 = new Body(27000, 2, 1, 10, 10);
+        // Body testBody3 = new Body(29530, 4, 2, 10, 10);
+        // Body testBody4 = new Body(29530000, -4, 4, 10, 10);
+        // Body[] bodies = new Body[4];
+        // bodies[0] = testBody;
+        // bodies[1] = testBody2;
+        // bodies[2] = testBody3;
+        // bodies[3] = testBody4;
+
+        // System.out.println(testBody.getSpeed());
+        // System.out.println(testBody.getDistance(testBody2));
+        // System.out.println(testBody.getXforce(testBody2));
+        // System.out.println(testBody.getYforce(testBody2));
+
+        // testBody.calcNetForce(bodies);
+        // System.out.println(testBody.fx);
+        // System.out.println(testBody.fy);
+
+
+
+
+    }
+
+}

Space.java

@@ -0,0 +1,50 @@
+public class Space {
+
+    Body[] bodies;
+    double height;
+    double width;
+
+    public Space(Body[] bodies, double height, double width){
+
+        this.bodies = bodies;
+        this.height = height;
+        this.width = width;
+    }
+
+    public void calculateForces(){
+
+        //double runningTotal = 0;
+        for(int i = 0; i < this.bodies.length; i ++){
+            this.bodies[i].calcNetForce(this.bodies);
+        }
+    }
+
+    public static void main(String args[]){
+
+        Body testBody = new Body(15000, 0, 0, 10, 10);
+        Body testBody2 = new Body(27000, 2, 1, 10, 10);
+        Body testBody3 = new Body(29530, 4, 2, 10, 10);
+        Body testBody4 = new Body(29530000, -4, 4, 10, 10);
+        Body[] bodies = new Body[4];
+        bodies[0] = testBody;
+        bodies[1] = testBody2;
+        bodies[2] = testBody3;
+        bodies[3] = testBody4;
+
+        Space space = new Space(bodies, 500, 500);
+        space.calculateForces();
+
+        System.out.println(space.bodies[0].getNetXforce());
+        System.out.println(space.bodies[0].getNetYforce());
+
+        System.out.println(space.bodies[1].getNetXforce());
+        System.out.println(space.bodies[1].getNetYforce());
+
+        System.out.println(space.bodies[2].getNetXforce());
+        System.out.println(space.bodies[2].getNetYforce());
+
+        System.out.println(space.bodies[3].getNetXforce());
+        System.out.println(space.bodies[3].getNetYforce());
+
+    }
+}