Reputation: 13
I'm trying to get two different classes to interact with eachother, for that I have in one class a pointer to an object of an other class, which is specified in the constructor. Interaction works so far, I can change the paramters of the pointed-to object and I can see the changes, as I'm printing it on a terminal. BUT when I try to get a parameter from this object and try to print it to the terminal through the class which points to it I only get a zero value for an Int from which I know, cause of debug outputs, that it isn't zero, if called directly. I will give you an example of the code:
class Spieler
{
private:
int score;
Schlaeger *schlaeger;
int adc_wert;
int channel;
public:
Spieler(int x, Schlaeger &schl, int adc_wert_c=0, int channel_c=0 )
{
score=x;
schlaeger=&schl;
adc_wert=adc_wert_c;
channel=channel_c;
}
//....
void set_schl(Schlaeger &schl){ schlaeger=&schl;}
int getPosY(){ schlaeger->getSchlaeger_pos_y();}
int getPosX(){ schlaeger->getSchlaeger_pos_x();}
void setPosY(int y){ schlaeger->set_pos_y(y);}
void schlaeger_zeichen(){
schlaeger->schlaeger_zeichen();
}
void schlaeger_bewegen(){
schlaeger->schlaeger_bewegen(getADC());
}
//...
};
class Schlaeger
{
private:
int schlaeger_pos_x;
int schlaeger_hoehe;
int schlaeger_pos_y;
public:
Schlaeger(int x=0, int h=5, int pos_y=15)
{
schlaeger_pos_x=x;
schlaeger_hoehe=h;
schlaeger_pos_y=pos_y;
}
int getSchlaeger_pos_x()
{
return schlaeger_pos_x;
}
int getSchlaeger_pos_y()
{
return schlaeger_pos_y;
}
int getSchlaeger_hoehe()
{
return schlaeger_hoehe;
}
void set_pos_y(int new_y)
{
schlaeger_pos_y=new_y;
}
};
The calls to the changing methods work, I can see the changes and I can see it in a debug output.
Upvotes: 0
Views: 124
Reputation: 1480
You're not returning the value in the getter
int getPosY(){ schlaeger->getSchlaeger_pos_y();}
should be
int getPosY(){ return schlaeger->getSchlaeger_pos_y();}
Upvotes: 4