From 8a77e9cf710c2e11d5dae0d31af619868d7701c5 Mon Sep 17 00:00:00 2001
From: SMoy17 <smoy@ucvts.tec.nj.us>
Date: Tue, 10 Nov 2015 13:59:29 -0500
Subject: [PATCH 1/3] One Ball w/Gravity

---
 GravityBallCode/GravityBallCode.pde | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index df2493b..c384761 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -1,5 +1,5 @@
 //declare variables
-float x, y, velX, velY, diam;
+float x, y, velX, velY, diam, gravity;
 
 void setup() {
   //set size of canvas
@@ -11,18 +11,22 @@ void setup() {
   diam = 80;
   velX = random(-5, 5);
   velY = random(-5, 5);
+  gravity = .1;
 }
 
 void draw() {
   //draw background to cover previous frame
   background(0);
 
+  velY += gravity;
+
   //draw ball
   ellipse(x, y, diam, diam);
 
   //add velocity to position
   x += velX;
   y += velY;
+  
 
   //bounce ball if it hits walls
   if (x + diam/2 >= width) {

From 54086b49814a177081cde5cbb1890e5893fa053a Mon Sep 17 00:00:00 2001
From: SMoy17 <smoy@ucvts.tec.nj.us>
Date: Tue, 10 Nov 2015 14:14:05 -0500
Subject: [PATCH 2/3] Many Balls w/Gravity

---
 GravityBallCode/GravityBallCode.pde | 54 +++++++++++++++++++----------
 1 file changed, 36 insertions(+), 18 deletions(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index c384761..1dd4c51 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -1,42 +1,60 @@
 //declare variables
-float x, y, velX, velY, diam, gravity;
+int count = 30; 
+
+
+//declare and initialize arrays
+float[] x=new float[count];
+float[] y=new float[count];
+float[] velX=new float[count];
+float[] velY=new float[count];
+float[] diam=new float[count];
+float gravity;
+int i;
 
 void setup() {
   //set size of canvas
   size(800, 600);
 
+for (int i = 0; i < count; i++) {
   //initialize variables
-  x = width/2;
-  y = height/2;
-  diam = 80;
-  velX = random(-5, 5);
-  velY = random(-5, 5);
+  x[i] = width/2;
+  y[i] = height/2;
+  diam[i] = 80;
+  velX[i] = random(-5, 5);
+  velY[i] = random(-5, 5);
   gravity = .1;
 }
+}
 
 void draw() {
   //draw background to cover previous frame
   background(0);
 
-  velY += gravity;
+  
 
   //draw ball
-  ellipse(x, y, diam, diam);
+  for (i = 0; i < count; i++) {
+    
+    velY[i] += gravity;
+    ellipse(x[i], y[i], diam[i], diam[i]);
+  
 
   //add velocity to position
-  x += velX;
-  y += velY;
+  x[i] += velX[i];
+  y[i] += velY[i];
   
 
   //bounce ball if it hits walls
-  if (x + diam/2 >= width) {
-    velX = -abs(velX);    //if the ball hits the right wall, assign x velocity the negative version of itself
-  } else if (x - diam/2 <= 0) {
-    velX = abs(velX);     //if the ball hits the left wall, assign x velocity the positive version of itself
+  if (x[i] + diam[i]/2 >= width) {
+    velX[i] = -abs(velX[i]);    //if the ball hits the right wall, assign x velocity the negative version of itself
+  } else if (x[i] - diam[i]/2 <= 0) {
+    velX[i] = abs(velX[i]);     //if the ball hits the left wall, assign x velocity the positive version of itself
   }
-  if (y + diam/2 >= height) {
-    velY = -abs(velY);
-  } else if (y - diam/2 <= 0) {
-    velY = abs(velY);
+  if (y[i] + diam[i]/2 >= height) {
+    velY[i] = -abs(velY[i]);
+  } else if (y[i] - diam[i]/2 <= 0) {
+    velY[i] = abs(velY[i]);
   }
+}
+
 }
\ No newline at end of file

From ba42602908685512e844e65ff70207e0870ab432 Mon Sep 17 00:00:00 2001
From: SMoy17 <smoy@ucvts.tec.nj.us>
Date: Thu, 12 Nov 2015 13:42:04 -0500
Subject: [PATCH 3/3] Doesn't Sink

---
 GravityBallCode/GravityBallCode.pde | 1 +
 1 file changed, 1 insertion(+)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index 1dd4c51..c04248b 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -52,6 +52,7 @@ void draw() {
   }
   if (y[i] + diam[i]/2 >= height) {
     velY[i] = -abs(velY[i]);
+    y[i] = height-diam[i]/2;
   } else if (y[i] - diam[i]/2 <= 0) {
     velY[i] = abs(velY[i]);
   }