Add Tera Switch Mod

[Seerd]

For the forgotten OM: https://www.smogon.com/forums/threads/tera-switch.3715743/
Needs to fix visual bug that prevents Tera icon/type from disappearing when going back to original types, plz help.
EDIT: Fixed the visual bug, needs client stuff tho smogon/pokemon-showdown-client#2144

[MathyFurret]

That's because there isn't a message defined to remove Tera yet. Necessecity's the mother of invention, after all.

[KrisXV]

necessecity

[Seerd]

Have been trying some stuff without luck, can't figure out how to fix that visual bug.

[MathyFurret]

ok so what you would actually need to do is make a new message type that tells the client to clear a tera. something like -unterastallize|POKEMON

there are 3 parts to this:

• document the message in SIM-PROTOCOL.md (apparently optional because -terastallize hasn't even been added yet loool)
• on the client, around here, add a case for your new message that undoes all the stuff that tera does. there's the log text aspect too
• send the message whenever you un-tera (with this.add)

[Seerd]

Thanks, now it does update the types every turn.