GameEntity(T xPos, T yPos) : x(xPos), y(yPos) {}
That’s a constructor definition in C++ using an initializer list.
GameEntity(T xPos, T yPos)
This is the constructor for the class GameEntity. It takes two parameters of type T (likely a template type, e.g., int, float, or double).
: x(xPos), y(yPos)
This is an initializer list. Instead of assigning values inside the constructor body, it directly initializes the member variables x and y with the arguments xPos and yPos.
{}
The constructor body is empty because all the work (initialization) is already done in the initializer list.
A template class allows you to write a class once and use it with different data types without rewriting the code.
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