At the start of 2017 I really wanted to make my own 2D strategy game, similar to “FTL” and other indie games. I started by getting to know the SDL (Simple Directmedia Layer) library in C++ by using it in a variety of test projects, before eventually deciding that I wanted to make a simple game engine.
I never did finish this project, but I did get a lot of the core functionality done, like the “level-editor” which is shown above. Here’s how the engine works in term of C++ objects and their relationships:
Here is a list of functions that my level-editor/game engine can currently do. Almost all of the functionality is done through the manipulation of C++ objects and the SDL library.
- Supports loading and saving XML files with texture, level layout, and character data
- Multiple texture files can be used, including sprite animations
- Camera object allows panning
- Allows the used to draw a map using textures by generating blocks inside a vector array
- Blocks have parameters including: light levels, health, object properties, and more…
- Proper garbage collection of objects, textures, and XML data
- Blocks can interact with each other (collision detection)
Even though I never made a game using this code, I did manage to teach myself a lot of the C++ programming language. My favorite resources to use were the C++ reference, the Lazyfoo SDL tutorials, and this YouTube video series about how to make a RPG (although I’m not a big fan of the RPG genre).
You can download the source code as part of a Visual Studio 2015 Project here.