Enhance comments

Clarifies both that ship velocity is not used in any inaccuracy calculations and the purpose of the speed variable.

Co-Authored-By: Amazinite <jsteck2000@gmail.com>

source/Projectile.cpp

@@ -52,6 +52,8 @@ Projectile::Projectile(const Ship &parent, Point position, Angle angle, const We
  if(inaccuracy)
  this->angle += Angle::Random(inaccuracy) - Angle::Random(inaccuracy);
 
+ // Inaccuracy is only applied to the velocity of the projectile, not the velocity of the ship,
+ // so we don't include the firing ship's velocity in the recorded speed of the projectile.
  speed = weapon->Velocity() + Random::Real() * weapon->RandomVelocity();
  velocity += this->angle.Unit() * speed;
 

source/Projectile.h

@@ -105,7 +105,8 @@ class Projectile : public Body {
  const Ship *cachedTarget = nullptr;
  const Government *targetGovernment = nullptr;
 
- // How much speed has been added by all stages of this projectile.
+ // How much speed has been added by all stages of this projectile
+ // relative to the firing ship.
  double speed = 0.;
  double clip = 1.;
  int lifetime = 0;