SDL Snake Mac OS
adminMay 31 2021
SDL Snake Mac OS
Last Updated 7/29/20
So you learned the basics of C++, but you're sick of making little text based programs. In order to use things like graphics, sound, keyboards, joysticks, etc you need an API (Application Programmer's Interface) that takes all those hardware features and turns it into something C++ can interact with.That's what SDL does. It takes the Windows/Linux/Mac/Android/iOS/etc tools and wraps them in a way that you can code something in SDL and compile it to what ever platform it supports. In order to use it, you need to install it.
Here's another of David Williams's games which runs nicely in a suitable browser: Rainbow Snake. Something to note: if you use SYS 'SDLSetWindowTitle' ensure that you include @memhdc% as the last parameter; that's necessary anyway for it to work reliably in MacOS but the in-browser edition crashes if you don't! Add the SDL and SDLmain.PPC.LIB files to the Mac Libraries section of the CodeWarrior project. You can find them in the SDL stuff you just unpacked. In Finder, copy the SDL library file to the folder that contains the project file. Otherwise, the application you are building can’t find it on startup and won’t start.
SDL as a dynamically linked library. A dynamically linked library has 3 parts:- The header files (Library.h)
- The library files (Library.lib for windows or libLibrary.a for *nix)
- The binary files (Library.dll for windows or Library.so for *nix)
After your compiler compiles all your source files it has to link them together. In order for the program to link properly, it needs to know the addresses of all your functions including the ones for SDL. For a dynamically linked library, these addresses are in the library file. The library file has the Import Address Table so your program can import the functions at runtime. Like with header files, You can either configure your compiler to search in an additional directory where the SDL library files are located, or put the library files in with the rest of library files that your compiler comes with. You also have to tell the linker to link against the library file in the linker. If the linker complains that it can't find -lSDL or SDL2.lib, it means the library files aren't in a place that the linker looks for library files. If the linker complains about an undefined reference, it probably means it was never told to link the library.
After your program is compiled and linked, you need to be able to link against the library when you run it. In order to run a dynamically linked application, you need to be able to import the library binaries at runtime. Your operating system needs to be able to find the library binary when you run your program. You can either put the library binaries in the same directory as your executable, or a directory that your operating system keeps library binary files.
Sdl Snake Mac Os Download
After you set up SDL, we'll cover how to create an SDL 2 window.
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SDL Snake Mac OS