.

Body.java

@@ -2,7 +2,7 @@
 
 public class Body {
 
-    public static final double G = 6.673e-5;
+    public static final double G = 6.673e-6;
     private double mass;
     private double px;
     private double py;
@@ -10,6 +10,10 @@ public class Body {
     private double vy;
     private double fx;
     private double fy;
+    private int a;
+    private int r;
+    private int g;
+    private int b;
 
     public Body(double mass, double px, double py, double vx, double vy){
         this.px = px;
@@ -17,6 +21,12 @@ public class Body {
         this.vx = vx;
         this.vy = vy;
         this.mass = mass;
+
+        this.a = 255;
+        this.r = (int) (Math.random() * 255);
+        this.g = (int) (Math.random() * 255);
+        this.b = (int) (Math.random() * 255);
+
     }
 
 
@@ -135,6 +145,18 @@ public class Body {
     public double getNetYforce(){
         return this.fy;
     }
+    public int getA(){
+        return this.a;
+    }
+    public int getR(){
+        return this.r;
+    }
+    public int getG(){
+        return this.g;
+    }
+    public int getB(){
+        return this.b;
+    }
 
     public static void main(String[] args){
 

Canvas.java

@@ -14,19 +14,14 @@ public class Canvas {
 
     public static void main(String[] args){
         Canvas test = new Canvas(500, 500, 255, 255, 255, 255);
-        int radius = 100;
+        int radius = 5;
         int x = 250;
         int y = 250;
         int a = 255;
 
-        for(int i = 0; i < 50000; i++){
-            int r = (int) (Math.random() * 256);
-            int g = (int) (Math.random() * 256);
-            int b = (int) (Math.random() * 256);
-            test.drawSquare(radius, x, y, r, g, b, a);
+        test.drawCircle(x, y, radius, 255, 255, 255, 255);
         test.display();
     }
-    }
 
     public Canvas(int height, int width, int r, int g, int b, int a){
         this.height = height;
@@ -50,14 +45,17 @@ public class Canvas {
     }
 
     public void setPixel(int x, int y, int r, int g, int b, int a){
+        if(x < 0 || y < 0 || y >= this.width || x >= this.height){
+            return;
+        }
+        else{
             int p = (a<<24) | (r<<16) | (g<<8) | b;
             this.image.setRGB(x, y, p);
         }
+    }
 
     public void drawSquare(int radius, int x, int y, int r, int g, int b, int a){
-        if(x > this.height -15 || x < 15 || y > this.width - 15 || y < 15){
-            return;
-        }
+
         for(int sign = 0; sign < 4; sign ++){
             for(int offsetY = 0; offsetY < radius; offsetY ++){
                 for(int offsetX = 0; offsetX < radius; offsetX ++ ){
@@ -77,4 +75,16 @@ public class Canvas {
             }
         }
     }
+
+    public void drawCircle(int radius, int x, int y, int r, int g, int b, int a){
+      double i, angle, x1, y1;
+
+      for(i = 0; i < 360; i += 0.1)
+      {
+            angle = i;
+            x1 = radius * Math.cos(angle * Math.PI / 180);
+            y1 = radius * Math.sin(angle * Math.PI / 180);
+            this.setPixel((int)(x + x1), (int)(y + y1), 255,255,255,255);
+      }
+}
 }

Space.java

@@ -8,9 +8,9 @@ import java.awt.Graphics2D;
 // ffmpeg -framerate 60 -start_number 1 -i %00d.png -pix_fmt yuv420p out.mp4
 
 // TODO Add circle render method
-// TODO Fix random generation of bodies
+
 // TODO Find good timeslice for annimation
-// TODO add out of bounds check to setPixel method
+
 
 
 public class Space {
@@ -69,12 +69,21 @@ public class Space {
         Canvas canvas = new Canvas( (int) this.height, (int) this.width, 255,255,255,255);
         for(int i = 0; i < this.bodies.length; i ++){
             if(i ==0){
-                canvas.drawSquare(10, (int) this.bodies[i].getXpos(), (int) this.bodies[i].getYpos(), 255, 255, 255, 255);
+                canvas.drawCircle(10, (int) this.bodies[i].getXpos(), (int) this.bodies[i].getYpos(), 255, 255, 255, 255);
             }
             else{
-                canvas.drawSquare(2, (int) this.bodies[i].getXpos(), (int) this.bodies[i].getYpos(), 255, 255, 255, 255);
+                int r = this.bodies[i].getR();
+                int g = this.bodies[i].getG();
+                int b = this.bodies[i].getB();
+                int x = (int) (this.bodies[i].getXpos());
+                int y = (int) (this.bodies[i].getYpos());
+                
+                canvas.drawSquare(5,x, y, r, g, b, 255);
             }
             
+                
+            
+            
         }
 
         File f = null;
@@ -90,26 +99,34 @@ public class Space {
 
     public static void main(String args[]){
 
-         Body[] bodies = new Body[1000];
-         bodies[0] = new Body(2000000, 540, 360, 0, 0);
-        // bodies[1] = new Body(2, 500, 400, 0, -.5);
-        // bodies[2] = new Body(2, 200, 400, 0, .5);
-        // bodies[3] = new Body(2, 200, 500, .5, 0);
-        // bodies[4] = new Body(2, 200, 200, -.5, 0);
-        // bodies[5] = new Body(2, 150, 150, -.5, .2);
-        // bodies[6] = new Body(2, 300, 300, -.5, 0);
-        // bodies[7] = new Body(2, 450, 450, -.5, -.3);
-        // bodies[8] = new Body(2, 225, 556, -.5, -.5);
+        Body[] bodies = new Body[14];
+        bodies[0] = new Body(20000000, 960, 540, 0, 0);
+        bodies[1] = new Body(2, 960, 520, .5, .0);
+        bodies[2] = new Body(2, 960, 240, -.5, 0);
+        bodies[3] = new Body(2, 200, 540, 0, .5);
+        bodies[4] = new Body(2, 750, 540, 0, -.5);
 
-        for(int i = 1; i < 1000; i ++){
+        bodies[5] = new Body(2, 700, 540, 0, -.5);
+        bodies[6] = new Body(2, 640, 540, 0, -.5);
+        bodies[7] = new Body(2, 800, 540, 0, -.5);
+        bodies[8] = new Body(2, 100, 540, 0, -.5);
+        bodies[9] = new Body(2, 50, 540, 0, -.5);
+        bodies[10] = new Body(2, 960, 100, -.5, 0);
+        bodies[11] = new Body(2, 960, 300, -.5, 0);
+        bodies[12] = new Body(2, 960, 800, -.5, 0);
+        bodies[13] = new Body(2, 960, 600, -.5, 0);
 
-            bodies[i] = new Body(2, Math.random() * 800, Math.random() * 650, Math.random() - 1, Math.random() -1);
     
-        }
 
-        Space space = new Space(bodies, 1080, 720, 3);
+        // for(int i = 1; i < 1000; i ++){
+
+        //     bodies[i] = new Body(2, Math.random() * 1080, Math.random() * 720, Math.random() -.5, Math.random() -.5);
+
+        // }
+
+        Space space = new Space(bodies, 1920, 1080, 1);
         int counter = 0;
-        for(int i = 0; i < 5000; i ++){
+        for(int i = 0; i < 50000000; i ++){
             space.updateForces();
             space.updateVelocities();
             space.updatePositions();

SpaceTaskHandaler.java

@@ -0,0 +1,17 @@
+public class SpaceTaskHandaler implements Runnable {
+    Space state;
+    public SpaceTaskHandaler(Space state){
+        state = this.state;
+    }
+    public static void main(String[] args){
+        
+    }
+
+    @Override
+    public void run() {
+        for(int i = 0; i < this.state.bodies.length; i ++){
+            this.state.bodies[i].calcNetForce(this.state.bodies);
+        }
+        
+    }
+}