LoadMapGroupRoof::
ld a, [wMapGroup]
ld e, a
ld d, 0
ld hl, MapGroupRoofs
add hl, de
ld a, [hl]
cp -1
ret z
ld hl, Roofs
ld bc, ROOF_LENGTH tiles
call AddNTimes
ld de, vTiles2 tile $0a
call CopyBytes
ret
INCLUDE "data/maps/roofs.asm"