Guide to the Godot game engine/Platform specific

<-- Servers (singletons) Platform specific Optimisation-->

When gaming was young, games were rarely designed for multiple systems at once. When that started, people had to check every screen resolution worked. When phones started coming in many different shapes and sizes, this soon became impractical, and even impossible for most of us. Godot has a way to combat this, of course. But screen size is not your only problem.

Stretching the screen

Go to ProjectSettings, and find Display -> Window. Go to the bottom of the area on the right, and under "Stretch", there are 3 settings: Mode, Aspect and Shrink.

Modes
Mode	About
disabled	Deafult. Does not stretch the screen.
2d	Only works on 2D, ignores 3D. Streches the 2D world.
viewport	Always works. Stretches the picture.

Aspect
Value	About
ignore	Simply stretches or shrinks the screen.
keep	The image scales, but the aspect ratio never changes. May create black bars around the edge of the screen.
keep_width	Height changes freely, width stays same size as the image scales. Aspect ratio never changes.
keep_height	Width changes freely, height stays same size as the image scales. Aspect ratio never changes.
expand	Scales image to show at minimum of the camera size. May reveal more of the game world vertically if the window is shrank horizontally and vice versa.