Bit Masking: Control Movement

Move widgets bit by bit

Constantin Stan


Photo by Euwen on Unsplash

This example is provided as a FlutterPen and I won’t detail how to create a Flutter app. Instead, I will explain the code that manages the state as a decimal value using bitwise operators like AND, OR, or NOT.

Control movement

We’ll alter a state using the WASD keys (or the equivalent arrow keys ⇧⇦⇩⇨) and use…