From 77559710f5933ddb9502ed42e8ea937e94e648dd Mon Sep 17 00:00:00 2001
From: JLimoo11 <JLimo@MH201-1206.ucvts.tec.nj.us>
Date: Tue, 10 Nov 2015 13:58:16 -0500
Subject: [PATCH 1/4] Gravity Ball Code

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

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index df2493b..cf68424 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -1,5 +1,7 @@
 //declare variables
 float x, y, velX, velY, diam;
+float earthg;
+
 
 void setup() {
   //set size of canvas
@@ -11,6 +13,7 @@ void setup() {
   diam = 80;
   velX = random(-5, 5);
   velY = random(-5, 5);
+  earthg = .1;
 }
 
 void draw() {
@@ -23,6 +26,7 @@ void draw() {
   //add velocity to position
   x += velX;
   y += velY;
+  velY+=earthg;
 
   //bounce ball if it hits walls
   if (x + diam/2 >= width) {
@@ -34,5 +38,5 @@ void draw() {
     velY = -abs(velY);
   } else if (y - diam/2 <= 0) {
     velY = abs(velY);
-  }
+  } 
 }
\ No newline at end of file

From 006fcb99b953f7ca928be967826405f67e51a49f Mon Sep 17 00:00:00 2001
From: JLimoo11 <JLimo@MH201-1206.ucvts.tec.nj.us>
Date: Wed, 11 Nov 2015 14:00:24 -0500
Subject: [PATCH 2/4] Fixed Gravity

It doesn't bounce higher anymore
---
 GravityBallCode/GravityBallCode.pde | 63 ++++++++++++++++-------------
 1 file changed, 36 insertions(+), 27 deletions(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index cf68424..1c47c72 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -1,42 +1,51 @@
 //declare variables
-float x, y, velX, velY, diam;
-float earthg;
+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[]earthg = new float[count];
 
 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);
-  earthg = .1;
+  for (int i =0; i<count; i++) {
+    //initialize variables
+    x[i] = width/2;
+    y[i] = height/2;
+    diam[i] = 80;
+    velX[i] = random(-5, 5);
+    velY[i] = random(-5, 5);
+    earthg[i] = .1;
+  }
 }
-
 void draw() {
   //draw background to cover previous frame
-  background(0);
+  background(0, 70, 250);
 
   //draw ball
-  ellipse(x, y, diam, diam);
 
-  //add velocity to position
-  x += velX;
-  y += velY;
-  velY+=earthg;
+  for (int i =0; i<count; i++) {
+    ellipse(x[i], y[i], diam[i], diam[i]);
+    velY[i]+=earthg[i];
+    //add velocity to position
+    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
+    //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
+    } 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[i] + diam[i]/2 >= height) {
+      velY[i] = -abs(velY[i]);
+    } 
+    //else if (y[i] - diam[i]/2 <= 0) {
+    //  velY[i] = abs(velY[i]);
+    //}
   }
-  if (y + diam/2 >= height) {
-    velY = -abs(velY);
-  } else if (y - diam/2 <= 0) {
-    velY = abs(velY);
-  } 
 }
\ No newline at end of file

From 9b226edd8b293693541092f226b459728f92ad99 Mon Sep 17 00:00:00 2001
From: JLimoo11 <JLimo@MH201-1206.ucvts.tec.nj.us>
Date: Wed, 11 Nov 2015 14:50:49 -0500
Subject: [PATCH 3/4] Fixed floor

Does not fall beneath floor
---
 GravityBallCode/GravityBallCode.pde | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index 1c47c72..8724351 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -43,9 +43,10 @@ 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]);
     //}
   }
+  }
 }
\ No newline at end of file

From cb71132065d6bd63cf0ecf18187d34fab8e9539a Mon Sep 17 00:00:00 2001
From: JLimoo11 <JLimo@MH201-1206.ucvts.tec.nj.us>
Date: Thu, 12 Nov 2015 13:44:27 -0500
Subject: [PATCH 4/4] added comments

finalized
---
 GravityBallCode/GravityBallCode.pde | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/GravityBallCode/GravityBallCode.pde b/GravityBallCode/GravityBallCode.pde
index 8724351..cc8ac6c 100644
--- a/GravityBallCode/GravityBallCode.pde
+++ b/GravityBallCode/GravityBallCode.pde
@@ -1,17 +1,17 @@
 //declare variables
-int count = 30;
+int count = 30; //sets count
 
 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[]earthg = new float[count];
+float[]earthg = new float[count]; 
 
 void setup() {
   //set size of canvas
   size(800, 600);
-  for (int i =0; i<count; i++) {
+  for (int i =0; i<count; i++) { //if int is between 0 to 30, add 1 to i
     //initialize variables
     x[i] = width/2;
     y[i] = height/2;
@@ -28,8 +28,8 @@ void draw() {
   //draw ball
 
   for (int i =0; i<count; i++) {
-    ellipse(x[i], y[i], diam[i], diam[i]);
-    velY[i]+=earthg[i];
+    ellipse(x[i], y[i], diam[i], diam[i]); //draws ellipse
+    velY[i]+=earthg[i]; //adds gravity variable to velY
     //add velocity to position
     x[i] += velX[i];
     y[i] += velY[i];
@@ -42,8 +42,8 @@ void draw() {
       velX[i] = abs(velX[i]);     //if the ball hits the left wall, assign x velocity the positive version of itself
     }
     if (y[i] + diam[i]/2 >= height) {
-      velY[i] = -abs(velY[i]);
-    y[i]= height - diam[i]/2;
+      velY[i] = -abs(velY[i]); //if the ball hits bottom wall, reverse velocity
+    y[i]= height - diam[i]/2; // makes Y position above bottom 
     //else if (y[i] - diam[i]/2 <= 0) {
     //  velY[i] = abs(velY[i]);
     //}