does not have class type C++

Question

This is one class from my program! When I\'m trying to compile the whole program, I get an error message like this:

main.cpp:174: error: \'((Scene*)this)

Answer 1

You've declared (but never defined) lake as a member function of Scene:

class Scene
{
    // ...
    Lake lake(int L);

But then in plot, you try to use lake as if it were a variable:

int plot()
{
    lake.light_up();