Revision as of 19:08, 17 June 2008

Format

Header

As specified in WDB.

DWORD 

Block ID (2A51171B)

DWORD 

Block version (only known version is 1)

7BITSTR 

Block name (c3DArray)

Data Section

DWORD 

Count X

DWORD 

Count Y

DWORD 

Count Z

variable 

Array[Z,X,Y] (see below)

Array format

Array[Z,X,Y] is a 3-dimensional array *of Objects* with depth Z, height X, and width Y. The type of data contained within the Object varies by Instance ID. Z is the outer loop, X is the middle loop, and Y is the inner loop, ie:

Repeat Z times

Repeat X times

Repeat Y times

Object

_______________________________________________________________

Instance ID 0x00

• It is for the location of floor tiling, including road tiles.

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = n1 x 10)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = n2 x 10)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories)

Repeat Z times

Repeat X times

Repeat Y times

WORD

West quarter tile reference number

WORD

North quarter tile reference number

WORD

East quarter tile reference number

WORD

South quarter tile reference number

• Notes:
  1. Floor tile reference number found in SMAP String Map file instance 0x0E
  2. There is some question as to whether each WORD may be 2 separate BYTEs

• Based on the pattern, this is apparently the array for floor tile pattern and the value may be the floor tile map reference number (found in instance 0x0E of String Map (SMAP; CAC4FC40) files); 0x0000 = untiled;
  • empty3x2= Width=30 & Height=30; LO = Lot Origin; @ = at; F = Front; B = Back; R = Right; L = Left
    • eg1 = empty3x2-LO@FR [ 120(0x0001)-120(0x0000)-120(0x0002)-120(0x0003)-120(0x0004)-120(0x0005)-120(0x0003)-120(0x0006)-120(0x0000)-120(0x0001)-2400(0x0000) ]
    • eg2 = empty3x2-LO@BR [ 30{80(0x0000)-4(0x0001)-4(0x0000)-4(0x0006)-4(0x0003)-4(0x0005)-4(0x0004)-4(0x0003)-4(0x0002)-4(0x0000)-4(0x0001)-} ]
    • eg3 = empty3x2-LO@BL [ 2400(0x0000)-120(0x0001)-120(0x0000)-120(0x0006)-120(0x0003)-120(0x0005)-120(0x0004)-120(0x0003)-120(0x0002)-120(0x0000)-120(0x0001) ]
    • eg4 = empty3x2-LO@FL [ 30{4(0x0001)-4(0x0000)-4(0x0002)-4(0x0003)-4(0x0004)-4(0x0005)-4(0x0003)-4(0x0006)-4(0x0000)-4(0x0001)-80(0x0000))-} ]

Instance ID 0x01

Array contains the elevation of the grid points for each level on the lot.

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = [n1 x 10] + 1)

(number of grid point along the Width)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = [n2 x 10] + 1)

(number of grid point along the Height)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories)

Repeat Z times

Repeat X times

Repeat Y times

Float (in singles)

Elevation of the grid point

Notes:

1. The elevation of each grid point is relative to the Z-Value of the LDEF Lot Description in the neighborhood package.
2. The standard elevation for the ground level and roads is 0.
3. The standard elevation for each level is 3.0 more than the previous level, or 16-click-high/16-step-high. In other words, each click (in terms of elevation tools)/step (in terms of modular stairs) is 0.1875 in singles.
4. The height of walls is determined by the difference in elevations from one level to the next.
5. A basement is built at ground level, which is why the ground slopes down when creating a basement.
6. A negative elevation means that the grid point is lower than the standard elevation of the lot (usually the elevation of the road). For example, creating a basement will usually move the ground level below the road, so the elevation of those grid points will be negative.
7. There is an optional underground level. To determine whether this level exists, check the minimum level of the lot in the WGRA Wall Graph. The only known underground level is the swimming pool; but an underground level can continue to exist even after the swimming pool has been removed.
   • If the underground level exists, then:
     • The minimum level specified in WGRA will be -1
     • Depth = 0 of the Array will contain the elevations of the underground level
     • Depth = 1 of the Array will contain the elevations of the ground level
   • Otherwise (default):
     • The minimum level specified in WGRA will be 0
     • Depth = 0 of the Array will contain the elevations of the ground level
8. To store arrays of the height values of grid points in singles. And, the story/level of grid point is presumed probably based on values of W, H and story/level probably partly dependent on the same 3D array instance file.
9. Negative value can exist in singles and later values can be smaller than the previous values for every story/level as V!ND!CARE's <4-click wall tutorial suggests.

Instance ID 0x03

Array contains information about locked road tiles on the lot.

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = n1 x 10)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = n2 x 10)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories)

Repeat Z times

Repeat X times

Repeat Y times

BYTE

Locking information

0 is unlocked

Instance ID 0x09, 0x0A, or 0x0B

• They are related to a closed room as data are added into them upon formation of a closed room. Values for room (light, load, place)[ Ref.: @ build mode, press the buttons "shift" & "alt"... an info window pops up ] matches values in instances 0x0B, 0x0A and 0x09 respectively. Not all three will be used or marked when a given closed room is made. The raise in numeric value is accumulative dependent on how many times one is used along the history of undeleted closed rooms in a lot.
  • for instance, a wall1 room was made first, it happened all three were employed, then (1,1,1) resulted inside such room. Thirdly, a foundation block was made, (2,2,2) resulted for the inside of the foundation. Fourthly, a room of screen deck was made, (3,3,0) resulted inside the screen room.

Fifthly, a room of column deck was formed, (0,4,0) resulted inside it. Sixthly, a roof room was built , (4,0,3) resulted inside the attic room. Seventhly, a wall1 room was built, (5,5,4) resulted inside the room. Note, the unclosed rooms and the "outside" had (0,0,0) for the three of "room".

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = n1 x 10)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = n2 x 10)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories)

Data storage format

Unknown

• • repeat count = 2^3 x W x H
    • eg1 = 7200(0x00) for empty unbuilt lots of Width=30 & Height=30
    • eg2 = 9600(0x00) for empty unbuilt lots of Width=40 & Height=30
    • eg3 = 12800(0x00) for empty unbuilt lots of Width=40 & Height=40
    • eg4 = 14400(0x00) for empty built lots of Width=30 & Height=30 with the only ground wall deleted

Instance ID 0x0C

• It is for the location of objects. Unlike floor tile, it stores the instance numbers of object (ObjT) files instead of object IDs or lot-individually assigned reference numbers.

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = n1 x 10)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = n2 x 10)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories)

;DWORD
:Count n
;''for each entry''
;DWORD
:unknown

Data storage format

Unknown

Known "values"

0x00000001

0x00000002

0x00000003

0x00000004

0x00000005

0x00000006

0x00000007

0x00000008

0x0000008c (140)

Array format

length = 3636 offsets for a 3x2 empty lot

length = 3648 offsets for a 3x2 lot with 4 extra singly-tiled objects

Instance ID 0x14

• This may be an occupancy array between story/levels and between grid lines, probably used for room occupancy. It seems to have West, North, East and South respectively as in the case of floor tile. This is also one of the differences between levelroom foundation wall and unlocked foundation wall; unlocked foundation wall caused no alteration on value in this file while levelroom foundation wall caused certain values to become "0x00000000" from "0xFFFFFFFF". Swim-pool caused "0x00000003" instead of "0x00000000" from "0xFFFFFFFF". levelroom foundation blocks also caused "0x00000000" from "0xFFFFFFFF". So far, it may explain why levelroom foundation wall still can have some bits of blockage property and tiling oddities.
• If the data format is not Dword, Word would be the next potential format and NW, NE, SE and SW may be present.

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = n1 x 10)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = n2 x 10)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories - 1)

Data storage format

16 bytes

Unknown

Array format

• • empty3x2= Width=30 & Height=30; LO = Lot Origin; @ = at; F = Front; B = Back; R = Right; L = Left
    • eg1 = empty3x2-LO@FR [(nil/null)]
    • eg2 = empty3x2-LO@BR [(nil/null)]

Test 1 {lot origin is at the lot's back right as the shadow suggests. There were 4 stories/levels}

• offset ranges 1:
  • 1485-1515 ; 2 x {4(3 0 0 0)} and
  • 1805-1836 ; 2 x {4(3 0 0 0)} for the swim-pool block shown in
• offset ranges 2:
  • 3629-3660 ; 4(256)4{0}4(0)4(256) -- 4(256)4(256)4{0}4(0) and
  • 3949-3980 ; 4{0}4(0)4(256)4(256) -- 4{0}4(256)4(256)4(0) for the levelroom foundation wall
• offset ranges 3:
  • 5629-5660 ; 8(4(0)) for the 2 consecutive levelroom foundation blocks.

Instance ID 0x15

• This may be an array for the presentation of the horizontal plane(s), and it appears to affect non-levelroom partition-dependent build tools like wall and fence tools.

DWORD

Count X [offset ranges: 81-84 / 0x51-0x54] (Width = n1 x 10)

DWORD

Count Y [offset ranges: 85-88 / 0x55-0x58] (Height = n2 x 10)

DWORD

Count Z [offset ranges: 89-92 / 0x59-0x5C] (number of levels/stories)

Data storage format

4 bytes

unknown (Unlikely Singles)

Array format

• 4(Width x Height)
  • empty3x2= Width=30 & Height=30; LO = Lot Origin; @ = at; F = Front; B = Back; R = Right; L = Left
    • eg1 = empty3x2-LO@FR [Nt(0x01)](Nt = 3600 = 30 x 30 x 1 x 4)
    • eg2 = empty3x2-LO@BR [Nt(0x01)](Nt = 3600 = 30 x 30 x 1 x 4)
    • eg3 = 1x1 lot 2level [Nt(0x01)](Nt = 3600 = 20 x 10 x 2 x 4)

Testing:

• all 0x01 --> 0x00 in base game ; the levelroom foundation wall was built before such testing as a control.
  • 
  • 
  • 
  • 
  • 
• Observations:
• Buildable
  • • foundations
    • swim-pool
    • modular stairs
    • plant objects
    • roof-tool-based roofs
• Unbuildable
  • • partitions including fences, fence-arch, wall 1 (default wall), unlocked walls of foundation wall, screen wall, attic wall; yet, Partitions like walls and fences can form as long as a ending side is at the pool border whether the cheat "moveobjects on" is used. Previously made walls remained.
    • floor tiles unbuildable or unpresented?
• The cheat "moveobjects on" can initiate the presentation of grids on the road side.
• Any newly introduced array values will remain 0x01; for example, those added by a swim-pool or an extra story/level.

See Also

• WDB

This article is imported from the old MTS2 wiki. It's original page, with comments, can be found at http://old_wiki.modthesims2.com/2A51171B