diff options
Diffstat (limited to 'map/utils.gbasm')
| -rw-r--r-- | map/utils.gbasm | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/map/utils.gbasm b/map/utils.gbasm new file mode 100644 index 0000000..cf2c4ce --- /dev/null +++ b/map/utils.gbasm @@ -0,0 +1,29 @@ +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 + |