C$++$ why am i getting the following errors in my code? i provided the screenshot of errors and pasted the parts of code where I am getting them errors at$.$ Please add an explanation why i did it wrong so i can understand better. Thank you in advanced!

character.hpp file

class Character $\{$

private:

int atk;

int def;

int hp;

public:

virtual void equip$($Equip$*$ equipment$)=0$;

virtual void attack$($Character$*$ target$)$;

virtual void special$()=0$;

void set$\_$attack$($int atk$)\{$

atk $=$ atk;

$\}$

int get$\_$attack$()\{$

return atk;

$\}$

void set$\_$defense$($int def$)\{$

def $=$ def;

$\}$

int get$\_$defense$()\{$

return def;

$\}$

void set$\_$hp$($int hp$)\{$

hp $=$ hp;

$\}$

int get$\_$hp$()\{$

return hp;

$\}$

$\}$;

class Player : public Character$\{$

private:

Equip$*$ currentEquipment;

public:

void equip$($Equip$*$ equipment$)$ override$\{$

set$\_$attack$($currentEquipment$->$get$\_$attack$\_$bonus$())$;

set$\_$defense$($currentEquipment$->$get$\_$defense$\_$bonus$())$;

$\}$

void attack$($character$*$ target$)\{$

bool enemy; $//$ logic to determine if target is enemy

if$($enemy$)\{$

int updateHealth $=$ get$\_$hp$()-$ get$\_$attack$()$;

$//$ apply damage to target

set$\_$hp$($updateHealth$)$;

$\}$

$\}$

$\}$;