Simple inheritance example??
Hello,
I want to learn inheritance for a game that I am trying to write, but can't find any good examples. Could someone write 2 simple classes where one is derived from the other?? I'd really appreciate it! Also, if you could thoroughly explain what you're doing it'd really help me. Thanks a lot!
Code://base class class Human { protected: int life; public: virtual void Die() = 0; virtual void Damage( int dmg ) = 0; }; //derived class 1 class Civilian : public Human { public: Civilian() { life = 10; } void Die() { printf( "...dead" ); } void Damage( int dmg ) { life = life - dmg; if( life < 0 ) Die(); } }; //derived class 2 class Soldier : public Human { public: Soldier() { life = 15; } void Die() { printf( "...throwing last handgrenade... dead" ); } void Damage( int dmg ) { life = life - ( dmg - 1 ); // 1 point armor if( life < 0 ) Die(); } }; void Hurt( Human& person ) { person.Damage( 5 ); } int main() { Civilian a; Soldier b; Hurt( a ); Hurt( a ); Hurt( a ); Hurt( a ); Hurt( b ); Hurt( b ); Hurt( b ); Hurt( b ); Hurt( b ); Hurt( b ); return 0; }
hth
-nv
She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."
When in doubt, read the FAQ.
Then ask a smart question.
Great example. But if you put Hurt as a virtual function in your base class you could either except it or change Hurt's power rather than adjusting it in Damage. Then it would be completely polymorphic.
I could just call Damage( 5 ) on a and b in main, but that would
defeat the purpose of showing that you can now have a generic
Human and don't care what type it is...
hth
-nv
She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."
When in doubt, read the FAQ.
Then ask a smart question.
That was cool
Marky_Mark
