Difference between revisions of "Intermediate C++ Game Programming Tutorial 18"
From Chilipedia
(→Errata) |
(→Part 2) |
||
| Line 11: | Line 11: | ||
=== Part 2 === | === Part 2 === | ||
* Using inheritance and composition together | * Using inheritance and composition together | ||
| + | * Basic idea of a polymorphic state machine and its application to entity behavior | ||
== Video Timestamp Index == | == Video Timestamp Index == | ||
Revision as of 13:35, 12 December 2017
Another two-parter here, and we got the real stuff now. Virtual functions allow you to unlock the true potential of inheritance in C++. You need to know this shit.
Contents
Topics Covered
Part 1
- How to create a virtual function
- Using the override keyword
- Creating a pure virtual function
- Using a container of pointers to manage a heterogeneous collection of objects
- virtual destructors
Part 2
- Using inheritance and composition together
- Basic idea of a polymorphic state machine and its application to entity behavior
Video Timestamp Index
Source Code
Errata
- Forgot the virtual destructor for
class Weapon! (this one hurts) - In the children, the function signatures should be:
int CalculateDamage( const Attributes& attr,Dice& d ) const override - Though not technically an error, it might have been a better decision to make Weapon::GetName() and Weapon::GetRank() (pure) virtual functions (this would reduce the amount of per-instance data to just the vtable ptr)
