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Pick_Random_Room_Avoid_A: ; input A = room to avoid (or FF if none), output A = chosen room idx
PUSH BC
CP $FF
JR Z, =.All_rooms_allowed
LD B, A
.Skip_bunny_room:
LD A, $mem_number_of_rooms
CP $01
JR Z, =.All_rooms_allowed
DEC A
CALL =RNG_Bound
INC A
LD C, A
LD A, B
CP C
LD A, C
JR C, =.Room_restriction.end
DEC A
JR =.Room_restriction.end
.All_rooms_allowed:
LD A, $mem_number_of_rooms
CALL =RNG_Bound
.Room_restriction.end:
POP BC
RET
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