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Constant swap explains this Battle Tower bug

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This commit is contained in:
Remy Oukaour 2018-01-10 02:55:44 -05:00
parent 7de7441e72
commit 16eb97ae9c
4 changed files with 17 additions and 14 deletions
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6
constants/battle_tower_constants.asm
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@ -44,6 +44,12 @@
BATTLETOWER_NROFPKMNS EQU 3
BATTLETOWER_NROFTRAINERS EQU 7
BATTLETOWER_NUM_UNIQUE_TRAINERS EQU 70
BATTLETOWER_TRAINER_MASK EQU %1111111
BATTLETOWER_NUM_UNIQUE_PKMN EQU 21
BATTLETOWER_PKMN_MASK EQU %11111
BATTLETOWER_TRAINERDATALENGTH EQU $24
BATTLE_TOWER_STRUCT_LENGTH EQU $e0 ; NAME_LENGTH + BATTLETOWER_NROFPKMNS * (PARTYMON_STRUCT_LENGTH + PKMN_NAME_LENGTH) + BATTLETOWER_TRAINERDATALENGTH

6
data/battle_tower/classes.asm
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@ -23,9 +23,6 @@ BattleTowerTrainers: ; 1f814e
db "KAUFMAN@@@", SWIMMERM
db "LANCASTER@", SKIER
db "McMAHILL@@", CAMPER
if !DEF(_CRYSTAL11)
BattleTowerTrainersEnd:
endc
; The following can only be sampled in Crystal 1.1.
db "OBRIEN@@@@", GENTLEMAN
db "FROST@@@@@", BEAUTY
@ -76,7 +73,4 @@ endc
db "DYKSTRA@@@", SWIMMERF
db "EATON@@@@@", BIKER
db "WONG@@@@@@", FIREBREATHER
if DEF(_CRYSTAL11)
BattleTowerTrainersEnd:
endc
; 1f8450

13
engine/events/battle_tower/load_trainer.asm
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@ -27,11 +27,14 @@ Function_LoadOpponentTrainerAndPokemons: ; 1f8000
add b
ld b, a ; b contains the nr of the trainer
if DEF(_CRYSTAL11)
and $7f
and BATTLETOWER_TRAINER_MASK
cp BATTLETOWER_NUM_UNIQUE_TRAINERS
else
and $1f
; Crystal 1.0 used the wrong constants here, so only the first 21
; trainers in BattleTowerTrainers can be sampled.
and BATTLETOWER_PKMN_MASK
cp BATTLETOWER_NUM_UNIQUE_PKMN
endc
cp (BattleTowerTrainersEnd - BattleTowerTrainers) / NAME_LENGTH
jr nc, .resample
ld b, a
@ -112,8 +115,8 @@ Function_LoadRandomBattleTowerPkmn: ; 1f8081
ld a, [hRandomAdd]
add b
ld b, a
and $1f
cp BATTLETOWER_NROFPKMNS * BATTLETOWER_NROFTRAINERS
and BATTLETOWER_PKMN_MASK
cp BATTLETOWER_NUM_UNIQUE_PKMN
jr nc, .resample
; in register 'a' is the chosen Pkmn of the LevelGroup

6
engine/events/battle_tower/rules.asm
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@ -213,7 +213,7 @@ BattleTower_ExecuteJumptable: ; 8b25b
BattleTower_CheckPartyLengthIs3: ; 8b2bb
ld a, [PartyCount]
cp 3
cp BATTLETOWER_NROFPKMNS
ret
; 8b2c1
@ -235,13 +235,13 @@ BattleTower_CheckPartyHasThreeMonsThatAreNotEggs: ; 8b2c1
cp b
ret z
ld a, b
cp 3
cp BATTLETOWER_NROFPKMNS
ret
; 8b2da
Function_PartyCountEq3: ; 8b2da
ld a, [PartyCount]
cp 3
cp BATTLETOWER_NROFPKMNS
ret z
scf
ret