README
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Flatland
Flatland is an attempt at writing a game-dev IDE using Go, imgui and Ebitengine. I chose 2D because it is at least an order of magnitude less effort than 3D. See quickstart.md if you just want to start trying stuff.
I've shamelessly stolen key ideas from Unreal, such as:
Separate builds for standalone games and editor builds
Packages are organized such that editor depends on the game. The game part
does not need to use anything from the editor package, or from imgui if you
don't want to.
Easy editing of user defined assets
If you register a struct with the asset package (asset.RegisterAsset), then
the editor package will let you create and edit the exported fields of the struct.
Likewise it is trivial to load assets with asset.Load, this loading will
recursively load any assets that are linked.
Custom asset editors are easy to write
If you know a little imgui, you can write custom editors for your types, see
image_ed.go for an example.
Actors and Components
You are not required to use the design style in the flat package. You may
only want to use the asset and editor packages. The design of flat
intends to be very data-driven which results in being able to build composite
objects in the editor.
Basically everything in the game should be an Actor - something that has a
Transform2D and exists in the world. There are various interfaces an Actor
can implement (Drawable,Updateable,Playable) to be hooked into the main game
loop. Your own Actors can embed ActorBase to get the default behaviours.
Components are a way to implement features - a composition over inheritance
pattern. You can dynamically attach Components to Actors in the editor and
they will start ticking/drawing/etc.
Directories