LoadObjectMasks: ; 2454f ld hl, wObjectMasks xor a ld bc, NUM_OBJECTS call ByteFill nop ld bc, MapObjects ld de, wObjectMasks xor a .loop push af push bc push de call GetObjectTimeMask jr c, .next call CheckObjectFlag .next pop de ld [de], a inc de pop bc ld hl, OBJECT_LENGTH add hl, bc ld b, h ld c, l pop af inc a cp NUM_OBJECTS jr nz, .loop ret CheckObjectFlag: ; 2457d (9:457d) ld hl, MAPOBJECT_SPRITE add hl, bc ld a, [hl] and a jr z, .masked ld hl, MAPOBJECT_EVENT_FLAG add hl, bc ld a, [hli] ld e, a ld a, [hl] ld d, a cp -1 jr nz, .check ld a, e cp -1 jr z, .unmasked jr .masked .check ld b, CHECK_FLAG call EventFlagAction ld a, c and a jr nz, .masked .unmasked xor a ret .masked ld a, -1 scf ret GetObjectTimeMask: ; 245a7 (9:45a7) call CheckObjectTime ld a, -1 ret c xor a ret