Fixes Issue nature-of-code#83 : variable naming in Collision Equal Mass

chp05_physicslibraries/CollisionsEqualMass/Mover.pde

@@ -14,7 +14,7 @@ class Mover {
 
  Mover(PVector v, PVector l) {
  vel = v.get();
- loc = l.get();
+ pos = l.get();
  }
 
  // Main method to operate object
@@ -56,29 +56,29 @@ class Mover {
  fill(175,200);
  ellipse(pos.x,pos.y,r*2,r*2);
  if (showVectors) {
- drawVector(vel,loc,10);
+ drawVector(vel,pos,10);
  }
  }
 
  void collideEqualMass(Mover other) {
- float d = PVector.dist(loc,other.loc);
+ float d = PVector.dist(pos,other.pos);
  float sumR = r + other.r;
  // Are they colliding?
  if (!colliding && d < sumR) {
- // Yes, make new velocities!
+ // Yes, make new veposities!
  colliding = true;
  // Direction of one object another
- PVector n = PVector.sub(other.loc,loc);
+ PVector n = PVector.sub(other.pos,pos);
  n.normalize();
 
- // Difference of velocities so that we think of one object as stationary
+ // Difference of veposities so that we think of one object as stationary
  PVector u = PVector.sub(vel,other.vel);
 
  // Separate out components -- one in direction of normal
  PVector un = componentVector(u,n);
  // Other component
  u.sub(un);
- // These are the new velocities plus the velocity of the object we consider as stastionary
+ // These are the new veposities plus the veposity of the object we consider as stastionary
  vel = PVector.add(u,other.vel);
  other.vel = PVector.add(un,other.vel);
  } 
@@ -95,6 +95,4 @@ PVector componentVector (PVector vector, PVector directionVector) {
  directionVector.normalize();
  directionVector.mult(vector.dot(directionVector));
  return directionVector;
-}
-
-
+}