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Split off the create class into it's own exercise

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Patricia Aas 2021-10-05 10:15:47 +02:00
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exercises/15/build_files/15-compilation-linking.md
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@ -5,7 +5,8 @@ In this exercise we will add a couple of files to the project.
## CMake
As described in the slides, the project is defined by several CMake files. The ones we are interested
is `CMakeLists.txt` in the root project folder and the `CMakeLists.txt` file in the `lib` folder.
is [`CMakeLists.txt`](../../../CMakeLists.txt) in the root project folder and
the [`CMakeLists.txt`](../../../lib/CMakeLists.txt) file in the `lib` folder.
You can see that the root CMake file is adding the `lib` subdirectory, this means that it is looking for
a `CMakeLists.txt` file within that folder.
@ -16,24 +17,20 @@ The CMake file in the `lib` folder describes a few package requirements and then
file(GLOB_RECURSE sources CONFIGURE_DEPENDS "*.cpp" "*.hpp")
```
Here it is creating a variable called `sources` that will contain all `.cpp` and `.hpp` files within the `lib` folder.
This means that if we want to add new files, we don't have to list them here, as any applicable files are included. But
adding a file will not automatically add the file in the IDE, as CMake needs to be run again for those changes to apply.
This is because the current configuration and list of files are defined in the CMake and IDE project files inside of
your build folder.
Here it is creating a CMake variable called `sources` that will contain all `.cpp` and `.hpp` files within the `lib`
folder. This means that if we want to add new files, we don't have to list them here, as any applicable files are
included. But adding a file will not automatically add the file in the IDE, as CMake needs to be run again for those
changes to apply.
# Exercise
One of the Pac-Man ghosts is missing. We will fully implement this ghost later but for now lets add the `.cpp`
One of the Pac-Man ghosts is missing. We will fully implement this ghost later but for now let's add the `.cpp`
and `.hpp` files to the project.
1. Create `Clyde.hpp` and `Clyde.cpp` files within the `lib` folder.
1. Create a `Clyde.hpp` in the `lib/include` folder and a `Clyde.cpp` file in the `lib` folder.
2. Run CMake again and see your IDE update to include this new file. You can try compiling again and see what happens.
2. Run CMake again and see your IDE update to include these new files. You can try compiling again and see what happens.
3. Include the `Clyde.hpp` file within the `Clyde.cpp` file.
3. Include the `Clyde.hpp` file within the `Clyde.cpp` file, and add `#pragma once` to `Clyde.hpp`.
4. Create an empty class named `Clyde` within the `.hpp` file. Look at other ghost `.hpp` files and see how they define
the class. It does not need to inherit from the `Ghost` base class and it does not need any functions. But if you
have extra time, try to inherit from the Ghost class and see what happens when you try to compile.
4. Include `Clyde.hpp` in [GameState.hpp](../../../lib/include/GameState.hpp) and rebuild

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exercises/17/classes/17-create-class.md Normal file
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@ -0,0 +1,5 @@
4. Create an empty class named `Clyde` within the `.hpp` file. Look at other ghost `.hpp` files and see how they define
the class. It does not need to inherit from the `Ghost` base class and it does not need any functions. But if you
have extra time, try to inherit from the Ghost class and see what happens when you try to compile.