ref: 66d84ff021bf22e607b766867a1a6ce7ce9855ed
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