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Use macros for WildMonEncounterSlotChances (#562)

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Engezerstorung 2026-01-17 22:42:57 +01:00 committed by GitHub
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data/wild/probabilities.asm
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@ -1,15 +1,28 @@
DEF wild_chance_slot = 0
DEF wild_chance_total = 0
MACRO wild_chance
DEF wild_chance_total += \1
db wild_chance_total - 1
db wild_chance_slot * 2
DEF wild_chance_slot += 1
ENDM
WildMonEncounterSlotChances:
; There are 10 slots for wild pokemon, and this is the table that defines how common each of
; those 10 slots is. A random number is generated and then the first byte of each pair in this
; table is compared against that random number. If the random number is less than or equal
; to the first byte, then that slot is chosen. The second byte is double the slot number.
db 50, $00 ; 51/256 = 19.9% chance of slot 0
db 101, $02 ; 51/256 = 19.9% chance of slot 1
db 140, $04 ; 39/256 = 15.2% chance of slot 2
db 165, $06 ; 25/256 = 9.8% chance of slot 3
db 190, $08 ; 25/256 = 9.8% chance of slot 4
db 215, $0A ; 25/256 = 9.8% chance of slot 5
db 228, $0C ; 13/256 = 5.1% chance of slot 6
db 241, $0E ; 13/256 = 5.1% chance of slot 7
db 252, $10 ; 11/256 = 4.3% chance of slot 8
db 255, $12 ; 3/256 = 1.2% chance of slot 9
; There are 10 slots for wild pokemon, and this is the list that defines how common each of
; those 10 slots is. A random number is generated and then the cumulative chance value up to the current
; slot (included) is compared against that random number. If the random number is less than or equal
; to said cumulative value, then that slot is chosen.
table_width 2
wild_chance 51 ; 51/256 = 19.9% chance of slot 0
wild_chance 51 ; 51/256 = 19.9% chance of slot 1
wild_chance 39 ; 39/256 = 15.2% chance of slot 2
wild_chance 25 ; 25/256 = 9.8% chance of slot 3
wild_chance 25 ; 25/256 = 9.8% chance of slot 4
wild_chance 25 ; 25/256 = 9.8% chance of slot 5
wild_chance 13 ; 13/256 = 5.1% chance of slot 6
wild_chance 13 ; 13/256 = 5.1% chance of slot 7
wild_chance 11 ; 11/256 = 4.3% chance of slot 8
wild_chance 3 ; 3/256 = 1.2% chance of slot 9
assert_table_length NUM_WILDMONS
ASSERT wild_chance_total == 256, "WildMonEncounterSlotChances sum to {d:wild_chance_total}, not 256!"