Package-level declarations

All drawing operations are done from here. By having this as an interface, this lets us have different backends, which leaves open the possibility of creating a multi-platform kotlin project with a different Backend for the js platform for use in a browser.

A Backend used for unit-testing, which renders nothing. By having a backend which doesn't actually render anything, unit tests which are not testing the actual display output do not need to create a window, or use OpenGL.

A dummy implementation of Window, used for unit-testing. See DummyBackend.

A rectangle using Floats. Used to pass rectangles from Glok's core to the Backend.

Logs calls to the Backend, and the forwards the calls to an inner.

Defines a rectangular region of a Texture as an Image. For example, it is common to place many icons in a single .png file, which is loaded as a single Texture. Each icon is then defined using PartialTexture.

An abstraction for loading resources, without needing to know the ultimate source of those resources. At time of writing, the only implementation is GLJarResources, though another implementation which loads from the filesystem would also be useful.

Defines a rectangular region of a Texture as an Image, but its size is reported scaled. i.e. a 64x64 image, scaled by 0.5 will report is size to be 32x32. NOTE, its actual size is still 64x64, and if you draw it (without additional scaling), it will be drawn as 32x32.

A bitmap graphic.

OpenGL is more efficient if you batch operations. Backend.batch lets us create such a batch. Currently, the only operation is the rectangular draw.

Holds an x, y coordinate.