pokemon essentials v20.1

I want to make sure that when the player selects Hard mode with a switch, for example, the battlestyle is always set and cannot be changed. I've looked at several fangames like Anil that have this, but I don't understand how they did it. If anyone knows, I'd love to know.

Introduction: This fangame is designed around the sandstorm weather and is located mainly in a large desert with many sub areas. There are a lot of changes to all the Pokémon, many moves, and some abilities in this fangame. I manually rewrote all the movesets for this fangame's roster. This...