CrispyOctoSporkEngine

Simple game engine written in c++ that abstracts some SDL functionality, along with adding support for common game engine needs. Below shows a sceenshot of the sample game that renders entites as textures, circles, and rectangles. Along with the basic particle system.

Basic Setup

To use with VS 2019, you'll need to download the crispyOctoSporkEngine.h header file and add it to your project. Then you'll need SDL2 and SDL2_image added as includes and linked against.

There is a sampleGame.cpp above that will get you started. But at a minimum you'll need to create a class deriving from Engine and override OnCreate() and OnUpdate like below:

class SampleGame : public Engine
{
public:
	bool OnCreate() override
	{
		return true;
	}
  
	bool OnUpdate(float deltaTime) override
	{
		return true;
	}
};

Then your main method would look like:

int main(int argc, char* argv[])
{
	SampleGame game;

	if (game.Create("SampleGame", 1280, 720, true, false))
	{
		game.Start();
	}

	return 0;
}

Currently a very lightweight Entity system is in place where you can create a Sprite, Rectangle, or Circle. These can be added to the engine with a call like:

AddEntity(new Rectangle(0, 0, 32, 32, COLOR_GREEN, renderer));

The above mentioned Entity types all have a default OnRender that will be called in the engines base implementation OnUpdate() so you'll need to add a call to your overriden OnUpdate() in order to get the free renderering like:

bool OnUpdate(float deltaTime) override
{
	Engine::OnUpdate(deltaTime);
	return true;
}

Emscripten support

To compile with emscripten for a web build, you'll need the header file, along with the optional blank skeleton html. Then using

emcc sampleGame.cpp -O2 -s USE_SDL=2 -s USE_SDL_IMAGE=2 -s SDL2_IMAGE_FORMATS='["png"]' --preload-file assets -o index.html --shell-file emcc_skeleton.html

or replace sampleGame.cpp with (get-item .\*.cpp).FullName to get all the cpp files in the current dir (in powershell)