GameResources/GB/PacInTime

Tile data

Tile function calculation procedure

All memory addresses here are relative to the System Bus.

Tile ID data starts at 0xC1A0 - each row is 78 (0x4E) tiles wide, and each tile takes up one byte.

If the tile ID is greater than the one-byte value at 0xD6F7, it's automatically considered a generic passable tile.

The start of the tile function table is a two-byte value at 0xD5F5 and increases in two-byte steps. For example, if the table starts at 0x7574 and the tile ID is 0x00, its function is stored at 0x7574, tile ID 0x01's function is at 0x7576, etc.

The function corresponds to the location of the code that is called to handle this tile.

Tile function info

Function (hex)	Description
07DB	Passable?
69CF	Passable, cannot be roped through
69D7	Passable
69F6	Partially solid (sand)
69FC	Partially solid (grass)
6A02	Partially solid (sand)
6A08	Partially solid (sand)
6A0E	Partially solid (sand)
6A44	Partially solid (right bracket)
6A4A	Partially solid (left bracket)
6B14	Partially solid (branch)
6B1A	Partially solid (foliage)
6B1F	Partially solid (branch)
6B25	Partially solid (branch)
6B2B	Partially solid (branch)
6B30	Partially solid (branch)
6B35	Partially solid (branch)
6B3A	Partially solid (branch)
6B44	Partially solid (branch)
6B4E	Partially solid (branch)
6B60	Partially solid (branch)
6B66	Partially solid (branch)
6B6C	Partially solid (branch)
6C22	Breakable block
6C63	Turns to object?
6CE8	Turns to object?
6D72	Collectible (time)
6D85	Underwater collectible (1-up)
6D8D	Collectible (1-up)
6DAB	Underwater collectible (pellet)
6DB3	Collectible (pellet)
6EA1	Solid
6EA8	Passable, exit level on floor contact
6EB9	Death (partial block)
6EC8	Death (partial block)
6ECD	Death (partial block)
6ED2	Death (partial block)
6ED7	Death (partial block)
6F1E	Death
6F44	Death
6FD6	Solid
7091	Partially solid (palm)
7096	Partially solid (palm)
709B	Partially solid (palm)
7171	Partially solid (bamboo)
7177	Partially solid (bamboo)
717D	Partially solid (bamboo)
7181	Partially solid (half)
7191	Water
719C	Water (lowering/rising)
7201	Water (half)
7210	Water
7239	Water, partially solid
723F	Water, partially solid
7245	Water, partially solid
724B	Water, partially solid
7251	Water, partially solid
7257	Water, partially solid
725D	Water, partially solid
7263	Water, partially solid
7269	Partially solid (right sand)
726F	Partially solid (left sand)
7275	Partially solid (slope)
727B	Partially solid (slope)
7281	Partially solid (slope)
7286	Partially solid (slope)
72AF	Partially solid (hill)
72B4	Partially solid (hill)
72B9	Partially solid (hill)
72C1	Partially solid (hill)
72C7	Partially solid (hill)
72CD	Partially solid (hill)
72D6	Partially solid
7830	Partially solid (sand)
7836	Water, partially solid
783C	Water, partially solid
79D2	Death (partial block)
79D8	Death (partial block)
79DE	Partially solid (foliage)
79E4	Partially solid (foliage)
79EA	Partially solid (foliage)
79ED	Partially solid (bridge)
79F3	Partially solid (bridge)
8002	Partially solid (grass)
8003	Partially solid (grass)
8004	Partially solid (branch)
8005	Partially solid (branch)
8006	Partially solid (branch)
8007	Partially solid (branch)
8008	Partially solid (branch)
8009	Partially solid (vine)
800A	Partially solid (branch)
800B	Partially solid (branch)
800C	Partially solid (grass)
800D	Partially solid (grass)
800E	Partially solid (foliage)
800F	Partially solid (branch)
8010	Partially solid (branch)
8011	Partially solid (foliage)
8012	Partially solid (branch)
8013	Partially solid (foliage)
8014	Partially solid (branch)
8029	Partially solid (palm)
802A	Partially solid (palm)
802B	Partially solid (palm)
802C	Partially solid (palm)
802D	Partially solid (palm)
802E	Partially solid (palm)
802F	Partially solid (palm)
8030	Partially solid (palm)
8108	Partially solid (foliage)
813C	Partially solid (foliage)
818F	Partially solid (foliage)
819F	Partially solid (vine)
824F	Partially solid (foliage)
82BF	Partially solid (grass)
82DF	Partially solid (grass)

Object data

Object data starts at 0xD600 in the system bus, with each object taking up 256 bytes. The first object is always the player, and then the second object is at 0xD700, the third at 0xD800, etc for a total of 10 objects.

Relative address (hex)	# of bytes	Description
00	1	Object type
01	2	Y momentum
04	2	Y position
06	2	X momentum
09	2	X position
1D	1	Health (if 0xFF, it's indestructible)

Tile data

Tile function calculation procedure

Tile function info

Object data

See also