From e233f66252aea39c33dfeb5a42e213eaccd640bc Mon Sep 17 00:00:00 2001
From: elizabethebui <ebui@ucvts.tec.nj.us>
Date: Mon, 9 Nov 2015 12:44:19 -0500
Subject: [PATCH 1/4] Gave y velocity an acceleration

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

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index df2493b..472bb36 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, g;
 
 void setup() {
   //set size of canvas
@@ -11,6 +11,7 @@ void setup() {
   diam = 80;
   velX = random(-5, 5);
   velY = random(-5, 5);
+  g = 1;
 }
 
 void draw() {
@@ -21,9 +22,12 @@ void draw() {
   ellipse(x, y, diam, diam);
 
   //add velocity to position
+   velY += g;
   x += velX;
   y += velY;
 
+
+
   //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

From eb8af4c7fbbeb1d64f67229cff810407da3078a3 Mon Sep 17 00:00:00 2001
From: elizabethebui <ebui@ucvts.tec.nj.us>
Date: Mon, 9 Nov 2015 12:58:47 -0500
Subject: [PATCH 2/4] Made 30 balls using arrays

---
 GravityBallCode/GravityBallCode.pde | 50 +++++++++++++++++------------
 1 file changed, 30 insertions(+), 20 deletions(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index 472bb36..5152b41 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -1,42 +1,52 @@
 //declare variables
-float x, y, velX, velY, diam, g;
+int count = 30;
+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 g;
 
 void setup() {
   //set size of canvas
   size(800, 600);
 
   //initialize variables
-  x = width/2;
-  y = height/2;
-  diam = 80;
-  velX = random(-5, 5);
-  velY = random(-5, 5);
-  g = 1;
+  for(int i = 0; i <count; i++){
+  x[i] = width/2;
+  y[i] = height/2;
+  diam[i] = 80;
+  velX[i] = random(-5, 5);
+  velY[i] = random(-5, 5);
+  g = 2;
+}
 }
 
 void draw() {
   //draw background to cover previous frame
   background(0);
-
+  for(int i = 0; i<count; i++){
   //draw ball
-  ellipse(x, y, diam, diam);
+  ellipse(x[i], y[i], diam[i], diam[i]);
 
   //add velocity to position
-   velY += g;
-  x += velX;
-  y += velY;
+  velY[i] += g;
+  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 bccabec2e6f3633f13c018c3b4cf11da8bd8f948 Mon Sep 17 00:00:00 2001
From: elizabethebui <ebui@ucvts.tec.nj.us>
Date: Mon, 9 Nov 2015 13:12:30 -0500
Subject: [PATCH 3/4] Added air resistance to prevent ball from bouncing too
 high

---
 GravityBallCode/GravityBallCode.pde | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index 5152b41..2a7edf0 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -16,8 +16,8 @@ void setup() {
   x[i] = width/2;
   y[i] = height/2;
   diam[i] = 80;
-  velX[i] = random(-5, 5);
-  velY[i] = random(-5, 5);
+  velX[i] = random(-5,5);
+  velY[i] = random(-5,5);
   g = 2;
 }
 }
@@ -31,12 +31,12 @@ void draw() {
 
   //add velocity to position
   velY[i] += g;
+  velY[i] *= 0.99;
   x[i] += velX[i];
   y[i] += velY[i];
 
-  
-
 
+ 
   //bounce ball if it hits walls
   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
@@ -45,6 +45,7 @@ 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]);
   }

From dacb18aa8754c24bf71b8ca8eaac87f7bbcfd579 Mon Sep 17 00:00:00 2001
From: elizabethebui <ebui@ucvts.tec.nj.us>
Date: Tue, 10 Nov 2015 12:53:18 -0500
Subject: [PATCH 4/4] Mouse recognition and color change/diameter change

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

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index 2a7edf0..706436c 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -26,8 +26,14 @@ void draw() {
   //draw background to cover previous frame
   background(0);
   for(int i = 0; i<count; i++){
+    if(dist(x[i], y[i], mouseX, mouseY) < diam[i]/2){
+      ellipse(x[i], y[i], 200, 200);
+      fill(random(255));
+  }
   //draw ball
   ellipse(x[i], y[i], diam[i], diam[i]);
+  stroke(255,0,255);
+  fill(255,0,255,50);
 
   //add velocity to position
   velY[i] += g;