Erazo Vectors

BouncingWithVectors/BouncingWithVectors.pde

@@ -1,37 +1,51 @@
 //declare variables
-float x, y, velX, velY, diam;
+int count = 20;
+float diam ;
+//float loc.x,loc.y
+PVector[] loc = new PVector[count]; //replaces loc.x & loc.y
+
+//float vel.loc.x, vel.loc.y
+PVector[] vel = new PVector[count]; //replaces vel.loc.x & vel.loc.y
 
 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);
+  //loc.x = width/2
+  //loc.y = height/2
+  for (int i = 0; i<count; i++) {
+    loc[i]= new PVector(width/2, height/2);
+    diam = 80;
+    //vel.loc.x= random(-5,5)
+    //vel.loc.y= random(-5,5)
+    vel[i] = PVector.random2D();
+  }
 }
 
 void draw() {
   //draw background to cover previous frame
   background(0);
+  for (int i =0; i<count; i++) {
 
-  //draw ball
-  ellipse(x, y, diam, diam);
+    //draw ball
+    ellipse(loc[i].x, loc[i].y, diam, diam);
 
-  //add velocity to position
-  x += velX;
-  y += velY;
+    //add velocity to position
+    //loc.x += vel.x;
+    //loc.y += vel.y;
+    loc[i].add(vel[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 (y + diam/2 >= height) {
-    velY = -abs(velY);
-  } else if (y - diam/2 <= 0) {
-    velY = abs(velY);
+    //bounce ball if it hits walls
+    if (loc[i].x + diam/2 >= width) {
+      vel[i].x = -abs(vel[i].x);    //if the ball hits the right wall, assign loc.x velocityloc.y the negative version of itself
+    } else if (loc[i].x - diam/2 <= 0) {
+      vel[i].x = abs(vel[i].x);     //if the ball hits the left wall, assign loc.x velocityloc.y the positive version of itself
+    }
+    if (loc[i].y + diam/2 >= height) {
+      vel[i].y = -abs(vel[i].y);
+    } else if (loc[i].y - diam/2 <= 0) {
+      vel[i].y = abs(vel[i].y);
+    }
   }
+}

Wanderer/Wanderer.pde

@@ -1,37 +1,52 @@
 //declare variables
-float x, y, velX, velY, diam;
+//float x, y, velX, velY, diam;
+float diam;
+
+PVector loc, vel, acc;
 
 void setup() {
   //set size of canvas
   size(800, 600);
-
+    loc= new PVector(width/2, height/2);
   //initialize variables
-  x = width/2;
-  y = height/2;
-  diam = 80;
-  velX = random(-5, 5);
-  velY = random(-5, 5);
+  //x = width/2;
+  //y = height/2;
+  diam = 73;
+  vel = PVector.random2D();
+  //vel.mult(0);
+  acc = PVector.random2D();
+  acc.mult(.05);
+
+
 }
 
 void draw() {
   //draw background to cover previous frame
-  background(0);
-
+  background(19,24,51);
+
+  //add here for ellipse to wander
+  acc = PVector.random2D();
+  acc.mult(.099);
   //draw ball
-  ellipse(x, y, diam, diam);
-
+  vel.mult(1);
+
+  ellipse(loc.x, loc.y, diam, diam);
+  fill(232,239,144);
+  vel.add(acc);
+  vel.limit(15);  //limit v to avoid it from overcoming large velocities
+
   //add velocity to position
-  x += velX;
-  y += velY;
+  loc.add(vel);
 
   //wrap the ball's position
-  if (x + diam/2 >= width) {
-    x = -diam/2;     
-  } else if (x - diam/2 <= 0) {
-    x = width + diam/2;
+  if (loc.x >= width) {
+    loc.x = 0;
+  } else if (loc.x <= 0) {
+    loc.x = width ;
   }
-  if (y + diam/2 >= height) {
-    y = -diam/2;
-  } else if (y - diam/2 <= 0) {
-    y = height + diam/2;
+  if (loc.y >= height) {
+    loc.y = 0 ;
+  } else if (loc.y <= 0) {
+    loc.y = height ;
   }
+}