OpenTTDDevBlackBook/Map/MapArray

(for snow and desert, these bits are not used, tile is updated on every periodic processing)

• for large office blocks (types 04 and 05):
  • m1 bits 6..0: position of the lift
  • m1 bit 7: if set the lift is moving

Note: In the climate list, 'sub-arctic' means below the snow line, and 'snow' means above the snow line in the sub-arctic climate.

• for large office blocks (types 04 and 05):
  • if set then m5 bits 5..0 hold the final position of the lift divided by 6 (valid values 0..6 except 1)

the meaning is different for some animated tiles which are never under construction (types 01, 1E..20, 30, 58; see above)

(note: this is not the same as the industry type stored in the array of industries)

• m5 bits 0..5: track layout: bit set = track present:

  bit 0:	in the X direction
  bit 1:	in the Y direction
  bit 2:	in the north corner (direction W-E)
  bit 3:	in the south corner (direction W-E)
  bit 4:	in the west corner (direction N-S)
  bit 5:	in the east corner (direction N-S)

• m5 bit 6 set = with signals:
  • m3 bits 7..4: bit set = signal present:
    • For track in the X direction:

      bit 6:	signal in the SW direction
      bit 7:	signal in the NE direction

    • For track in the Y direction:

      bit 6:	signal in the NW direction
      bit 7:	signal in the SE direction

    • For tracks in the W-E direction:

      bit 4:	signal in the W direction on the track in the S corner
      bit 5:	signal in the E direction on the track in the S corner
      bit 6:	signal in the W direction on the track in the N corner
      bit 7:	signal in the E direction on the track in the N corner

    • For tracks in the N-S direction:

      bit 4:	signal in the S direction on the track in the E corner
      bit 5:	signal in the N direction on the track in the E corner
      bit 6:	signal in the S direction on the track in the W corner
      bit 7:	signal in the N direction on the track in the W corner

  • m2 bits 7..4: bit clear = signal shows red; same bits as in m3
  • OpenTTD bits in m4:

    bits 2..0:	type of signal:
    000:	normal signals
    001:	pre-signals
    010:	exit-signals
    011:	combo-signals
    100:	PBS signals
    bit 3:	set = semaphore signals, clear = light signals

• m1: owner of the track
• m2 bits 0..3:

  0	on bare land
  1	on grass, no fences
  2	fence on the NW side
  3	fence on the SE side
  4	fences on the NW and SE sides
  5	fence on the NE side
  6	fence on the SW side
  7	fences on the NE and SW sides
  8	fence on the E side (track in the W corner)
  9	fence on the W side (track in the E corner)
  A	fence on the S side (track in the N corner)
  B	fence on the N side (track in the S corner)
  C	on snow or desert

• m3 bits 0..3 = track type: 0 - conventional railway, 1 - electric railway, 2 - monorail, 3 - maglev
• m4 bits 4..7 = Pbs reserved status:

  bits 4..6	'Track'number of reserved track + 1, if this is zero it means nothing is reserved on this tile
  bit 7	If this is set, then the opposite track ('Track'number^1) is also reserved

m5 bits 7 and 6 set: railway depot / waypoints

• m5 value C0..C3: railway depot
  m5 bits 1..0 - direction: exit towards: 00 = NE, 01 = SE, 02 = SW, 03 = NW
• m5 value C4..C5: waypoint
  bit 0: clear = in X direction, set = in Y direction
  
  
• m1: owner of the depot / waypoint
• m2: For waypoints, index into the array of waypoints.
• m3 bits 0..3 = track type
• m3 bit 4 = use custom sprite (valid only for the waypoint)
• m3 bit 6 = track on this tile is reserved by pbs
• m4 bits 0..3 = ground type, as per m2 bits 0..3 for railway tiles.

</td></tr>

• m5 bits 3..0: road layout: bit set = road piece present:

  bit 0:	NW piece
  bit 1:	SW piece
  bit 2:	SE piece
  bit 3:	NE piece

• m1: owner of the road
• m2: Index into the array of towns, 0 for non-town roads
• m4 bits 0..3: counter for the roadworks
• m4 bits 4..6: 0 - on bare land, 1 - on grass, 2 - paved, 3 - with streetlights, 5 - tree-lined, 6 - on grass with road works, 7 - paved with road works
• m4 bit 7 set = on snow or desert

m5 bit 4 set, bits 7..5 clear: level crossing

• m5 bit 3: clear - road in the X direction, set - road in the Y direction (railway track always perpendicular)
• m5 bit 2: set if crossing lights are on
• m5 bit 0: set if rail track is reserved by pbs
• m1: owner of the railway track
• m2: Index into the array of towns, 0 for non-town roads
• m3 bits 0..7: owner of the road
• m4 bits 3..0: track type
• m4 bits 4..6: 0 - on bare land, 1 - on grass, 2 or higher - paved
• m4 bit 7 set = on snow or desert

m5 bit 5 set: road depot

• m5 bits 3..0 - direction: exit towards: 0 = NE, 1 = SE, 2 = SW, 3 = NW
• m1: owner of the depot
• m4 bit 7 set = on snow or desert (not displayed, but set internally)

• m5 bits 7..6: number of trees minus one
• m5 bits 2..0: growth status: 0..2 - one of trees is growing, 3 - all trees are fully grown, 4..6 - one of trees is withering
• m3 bits 7..0: type of trees:

  00..0B	temperate climate trees
  0C..13	sub-arctic climate trees
  14..1A	rainforest trees
  1B	cactus plants
  1C..1F	sub-tropical climate, non-rainforest, non-desert trees
  20..28	toyland trees

  (note: the actually displayed set of trees depends on both type and number of trees)

• m4 bits 7..5: type of hedge on the SW border of the tile (1 through 6, or 0=none)
• m4 bits 4..2: type of hedge on the SE border of the tile (1 through 6, or 0=none)
• m2 bits 5..4:

  0	on grass
  1	on rough land
  2	on snow or desert; m2 bits 7..6 - amount of snow or desert (for desert always set to 3 in TTD)

• m2 bits 3..0: update counter, incremented on every periodic processing, on wraparound the growth status is updated (or, if it's 3, a random action is taken)
• m1: owner (normally 10)

• m5: tile type:

  00..07	railway station 00..01 - open platform, 02..03 - open platform with station building, 04....07 - roofed platform bit 0: clear = in X direction, set = in Y direction
  08..33	large airport 0B  pad 1 16..19  runway middle 1A  runway ending 1C  control tower 20  hangar 21  pad 3 22  pad 2 27..32  radar (animated) 33  transmitter The initial layout of a large airport is (rows in Y direction, columns in X direction): 1F 1B 1E 33 26 1A 09 24 0B 0C 0D 16 21 1D 23 0E 0F 17 09 22 0D 11 10 18 09 08 14 13 12 19 20 0A 15 1C 27 1A
  34..41	small airport 3A..3D  field with the wind meter (animated) 3E  runway south ending 3F  runway middle 40  runway north ending 41  hangar The initial layout of a small airport is (rows in Y direction, columns in X direction): 36 3A 40 35 39 3F 34 38 3F 41 37 3E
  42	heliport
  43..46	lorry loading area; exit towards: 43 - NE, 44 - SE, 45 - SW, 46 - NW
  47..4A	bus station; exit towards: 47 - NE, 48 - SE, 49 - SW, 4A - NW
  4B	oilfield
  4C..51	ship dock; 4C - SW coast part, 4D - NW coast part, 4E - NE coast part, 4F - SE coast part, 50 - X direction water part, 51 - Y direction water part
  52	buoy

  </li>

• m1: owner of the station</li>
• m2: index into the array of stations</li>
• m3 bits 0..3: track type for railway stations, must be 0 for all the other stations</li>
• m3 bit 4 = use custom sprite (valid only railway stations FOR NOW)</li>
• m3 bit 6 set = track is reserved by pbs (railway stations only)</li>
• m4 = custom station id</li> </ul>

Tiles of this class form an invisible, one tile wide border at the south (bottom) edges of the map, so as to protect several algorithms from the consequences of a wraparound at the edges.

• m5 bits 3..2: 0 - railway tunnel, 1 - road tunnel
• m5 bits 1..0 - direction: entrance towards: 0 = NE, 1 = SE, 2 = SW, 3 = NW
• m1: owner of the tunnel
• m3 bits 3..0 = track type for railway tunnel, must be 0 for road tunnel
• m4 bit 7 set = on snow or desert
• m4 bit 0 set = track with 'Track'number 0 is reserved by pbs
• m4 bit 1 set = track with 'Track'number 1 is reserved by pbs

m5 bit 7 set: bridge

• m5 bit 6 clear: bridge ending
  • m5 bit 5: clear - northern, set - southern ending
  • m3 bits 3..0 = type of track on the bridge, must be 0 for road bridge
  • m1: owner of the bridge

  m5 bit 6 set: bridge middle part

  • m5 bit 5 clear:
    • m5 bits 4..3: land under bridge: 0 - grass, snow or desert, 1 - water

    m5 bit 5 set:

    • m5 bits 4..3: transport route under bridge: 0 - railway, 1 - road
  • m3 bits 7..4 = type of track on the bridge, must be 0 for road bridge
  • m3 bits 3..0 = type of track under the bridge, if any
  • m2 bits 3..0: bridge piece (0..5)
  • m1: owner of the land under bridge
• m5 bits 2..1: 0 - railway bridge, 1 - road bridge
• m5 bit 0: clear - bridge in the X direction, set - bridge in the Y direction
• m2 bits 7..4: bridge type:

  Type	Max. speed (mph)	Description
  0	20	wooden
  1	30	concrete
  2	40	girder, steel
  3	50	suspension, concrete
  4	60	suspension, steel
  5	70	suspension, steel
  6	100	cantilever, steel
  7	130	cantilever, steel
  8	150	cantilever, steel
  9	160	girder, steel
  A	200	tubular, steel

• m4 bit 7 set = on snow or desert