ref: 40c899162b5501f14905893b9780e01e4b6f6ba7
dir: /engine/battle/move_effects/focus_energy.asm/
BattleCommand_FocusEnergy: ld a, BATTLE_VARS_SUBSTATUS4 call GetBattleVarAddr bit SUBSTATUS_FOCUS_ENERGY, [hl] jr nz, .already_pumped set SUBSTATUS_FOCUS_ENERGY, [hl] call AnimateCurrentMove ld hl, GettingPumpedText jp StdBattleTextbox .already_pumped call AnimateFailedMove jp PrintButItFailed