constructorA (Game game1) : base (game1) means what?

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2.33/5 (3 votes)

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see Subject title. I'm not entirely sure what this snippet of code entails. Why would we do this when we could simply instantiate the class that holds ConstructorA in the game's main class?

Here is the tutorial code I am basing this off of.

Audio Example[^]

In section 1.

Posted 23-Mar-11 8:49am

Selcuk Bor

Updated 23-Mar-11 8:55am

v3

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CPallini · Accepted Answer · 2011-03-23T08:54:00

Solution 1

That's the constructor of the derived class 'constructorA' with parameter of type 'Game' which in turn calls,in its initializer list, the base class ('base') constructor with same argument type, passing it its argument.

Such a mechanism is often useful.

Posted 23-Mar-11 8:54am

CPallini

v2

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Sergey Alexandrovich Kryukov 23-Mar-11 14:57pm

Three answers at the same time. My 5.
--SA

Wendelius 23-Mar-11 16:26pm

Have to ask, is it just coincidence that all three answers also all have three votes :)

Wendelius · Accepted Answer · 2011-03-23T08:54:00

Solution 2

It calls the base classes constructor with the parameter passed to the derived class constructor. The advantage is for example if you have multiple derived classes and you want to use same constructor in each so you can define the logic in the base class.

Posted 23-Mar-11 8:54am

Wendelius

Comments

Sergey Alexandrovich Kryukov 23-Mar-11 14:57pm

Three answers at the same time. My 5.
--SA

CPallini 23-Mar-11 16:09pm

5.

Sergey Alexandrovich Kryukov · Accepted Answer · 2011-03-23T08:56:00

Solution 3

It means that a constructor of a class uses a constructor of its base class to pass a variable of the type Game before further initialization.

—SA

Posted 23-Mar-11 8:56am

Sergey Alexandrovich Kryukov

Comments

Wendelius 23-Mar-11 15:01pm

Quite a coincidence :) +5

Sergey Alexandrovich Kryukov 23-Mar-11 16:40pm

It is. Thank you for the vote.
--SA

CPallini 23-Mar-11 16:10pm

5.

Sergey Alexandrovich Kryukov 23-Mar-11 16:40pm

Thank you.
--SA