if not pointing towards enemy:
   point towards enemy
else if within weapons range:
   kill throttle
   fire at enemy
else:
   set throttle to 30 units per second per second acceleration

        double ratioA = 0.5;
	double ratioB = 0.5;
	if(fabs(sinHalfTheta) >= 0.001) {
		// Not halfway! Determine the ratios..
		ratioA = sin((1.0 - t) * halfTheta) / sinHalfTheta;
		sin(t * halfTheta) / sinHalfTheta;
	}
	// Now that we have the ratios, figure it out.
	setW(getW() * ratioA + quaternion.getW() * ratioB);
	setX(getX() * ratioA + quaternion.getX() * ratioB);
	setY(getY() * ratioA + quaternion.getY() * ratioB);
	setZ(getZ() * ratioA + quaternion.getZ() * ratioB);

Vector<N,T>& operator-() {
  for(size_t i = 0; i < N; i++) {
    m_Data[i] *= -1;
  }
  return *this;
}

public:
    T* obtain(string name):
        if(name is not in the dictionary of stuff we have):
            dictionary[name] = loadAsset
        return dictionary[name]
protected:
    virtual T* loadAsset(string name) = 0;

class ModelCache : public AssetCache<PropaneModel*> {
public:
    virtual PropaneModel* loadAsset(string name) { ... }
};
// EntirelyUnrelatedCode.cpp
void letUsLoadSomeFreakingModelsAlready(ModelCache& models) {
    // Hey, why the fuck can I invoke a protected method here?!?
    PropaneModel* view = models.loadAsset(xmlnode.name);
}