pokecrystal-board/engine/battle/move_effects/protect.asm
2018-06-25 12:24:18 -04:00

76 lines
959 B
NASM

BattleCommand_Protect:
; protect
call ProtectChance
ret c
ld a, BATTLE_VARS_SUBSTATUS1
call GetBattleVarAddr
set SUBSTATUS_PROTECT, [hl]
call AnimateCurrentMove
ld hl, ProtectedItselfText
jp StdBattleTextBox
ProtectChance:
ld de, wPlayerProtectCount
ld a, [hBattleTurn]
and a
jr z, .asm_37637
ld de, wEnemyProtectCount
.asm_37637
call CheckOpponentWentFirst
jr nz, .failed
; Can't have a substitute.
ld a, BATTLE_VARS_SUBSTATUS4
call GetBattleVar
bit SUBSTATUS_SUBSTITUTE, a
jr nz, .failed
; Halve the chance of a successful Protect for each consecutive use.
ld b, $ff
ld a, [de]
ld c, a
.loop
ld a, c
and a
jr z, .done
dec c
srl b
ld a, b
and a
jr nz, .loop
jr .failed
.done
.rand
call BattleRandom
and a
jr z, .rand
dec a
cp b
jr nc, .failed
; Another consecutive Protect use.
ld a, [de]
inc a
ld [de], a
and a
ret
.failed
xor a
ld [de], a
call AnimateFailedMove
call PrintButItFailed
scf
ret