Derived class - question for EnTT component

gistfile1.txt

class Weapon
{
    public:
    glm::vec3 currentFiringLocation; //updated every frame with new barrel exit location
    float cooldownRemaining = 0.0f;  //updated every tick to see when it can fire again
    bool fixed = false;              //fixed weapon, or turret?
    
	  virtual void fire(int targetGlobalID) = 0;
    
    //the parameter below is because this weapon needs to know its owner's world location to draw the laser sprite
	  virtual void update(double dt, entityInstanceData& parent) = 0;

    private:
    glm::mat4 defaultRootPose;       //orientation it should have on load by default
    glm::vec3 defaultFiringLocation; //location of the barrel in the base/bind pose
};  


class LaserWeapon :private Weapon
{
public:
	float damagePerTick = 0.0f; //how much damage does it apply to target per tick?
	float burstLength = 0.0f;   //in seconds
	float totalDamage = 0.0f;   //total damage if the burst is fully applied
  
  virtual void fire(int targetGlobalID);
	virtual void update(double dt, entityInstanceData& parent);
};