How do I take input from the the sub class here? When I run this code it uses the values from superclass in Move() Function

I am new to coding and just learnt how to use classes so sorry if I am making a very simple mistake here.

I want The Move() Function here to take speed, damage and health inputs from the subclasses, take xpos and ypos default and xmove, y move and name from Int Main();

#include <iostream>
class Player
{
public:
    int xpos = 0; int ypos = 0;
    int health, damage, speed;
    // Move function takes these above as inputs
    void Move(std::string name, int xmove, int ymove)
    {
        xpos += xmove * speed;
        ypos += ymove * speed;
        std::cout << name << " moved " << xpos << " spaces" << std::endl;
        std::cout << "Health = " << health << std::endl;
        std::cout << "Damage = " << damage << std::endl;
    }
};

class pTank : public Player
{
public:
    //I want these as inputs in move function
    int speed = 1;
    int health = 200;
    int damage = 20;
};
class pSamurai: public Player
{
public:
    int speed = 4;
    int health = 100;
    int damage = 50;
};
int main()
{
    pTank player1;
    std::string p1 = "Player1";
    player1.Move(p1,1,1);
}

It gives the output

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Player 1 moved -856…. places
health = -865….
damage = -876….

Which I am assuming is because the values are not declared yet.

>Solution :

This here:

class pTank : public Player
{
public:
    //I want these as inputs in move function
    int speed = 1;
    int health = 200;
    int damage = 20;
};

Does not set the member variables of Player. Instead it declares new variables and shadows the old. Hence, Player::speed is never initialised.

Have a constructor for Player:

Player(int speed, int health, int damage) : speed{speed}, health{health}, damage{damage} {}

And then one for pTank:

pTank() : Player(1, 200, 20) {}

You can also aggregate initialise Player instead.