Lego Island World Database
From Just Solve the File Format Problem
The Lego Island World Database format is for a particular file in the Mindscape game Lego Island. This file stores all of the models and textures used in the game. The path to the file from the Lego Island installation directory is "LEGO Island\lego\data\WORLD.WDB".
Format
This format is not complete in that not every model can be extracted using this method, but it is the closest description of the format that works at this time.
// Documentation info
// struct groups[x] -> A data structure called groups that is repeated x number of times.
// uint32 -> An unsigned integer that is 32 bits in size.
// float32 -> a floating point number that is 32 bits in size.
// char[x] -> A string of characters that is x characters long.
// if (INDEX/subgroups) == 1 -> If the index of the subgroups data structure is 1 execute the following indented.
// SEEK 10 -> Seek to byte 10 in the binary file.
// SEEKREL -1 -> Seek 1 byte backwards in the binary file.
// MARKER HELLO -> A marker definition that can be accessed with GOTO HELLO.
// GOTO HELLO -> Go to the marker HELLO.
uint32 number_of_groups
struct groups[number_of_groups]
uint32 size_of_group_title
char[size_of_group_title] group_title
struct subgroups[2]
uint32 num_sub_items
struct sub_items[num_sub_items]
uint32 size_of_sub_item_title
char[size_of_sub_item_title] sub_item_title
uint32 size_of_item
uint32 item_offset
if (INDEX/subgroups) == 1
size_of_presenter_title I
presenter_title s size_of_presenter_title
byte[37] unknown
uint32 gif_chunk_size
byte[gif_chunk_size] unknown
uint32 model_chunk_size
//gifchunk
uint32 num_images
struct images[num_images]
uint32 size_of_string
char[size_of_string] gif_name
uint32 width
uint32 height
uint32 num_colors
struct colors[num_colors]
uint8 r
uint8 g
uint8 b
struct rows[height]
struct pixels[width]
uint8 color_index
//modelchunk
uint32 size_of_chunk
uint32 num_bins
struct bins[num_bins]
uint32 size_of_string
char[size_of_string] bin_name
uint32 num_models
uint32 end_bin_offset
SEEK end_bin_offset
//model
uint32 magic_number
uint32 bytes_left_in_subgroup
uint32 version
byte[8] unknown
uint32 size_of_file_name
char[size_of_file_name] file_name
uint32 u1
struct unknowns1[u1]
float32 some_float1
float32 some_float2
float32 some_float3
float32 some_float4
uint32 u2
struct unknowns2[u2]
uint32 some_int1
uint32 some_int2
uint32 some_int3
uint32 some_int4
uint32 number_of_components
struct component_header[number_of_components]
uint32 size_of_string
char[size_of_string] component_header_name
uint16 num_things
struct things[num_things]
uint16 unknown1
uint16 unknown2
float32 ufloat1
float32 ufloat2
float32 ufloat3
uint16 num_things2
struct things2[num_things2]
uint16 unknown1
uint16 unknown2
float32 ufloat1
float32 ufloat2
float32 ufloat3
float32 ufloat4
uint16 num_things3
uint16 num_things4
uint32 some_int
//components
struct components[number_of_components+1]
uint32 size_of_string
char[size_of_string] component_name
struct random_floats2[10]
float32 random_float2
byte[4] unknown
uint8 defined_elsewhere
if (defined_elsewhere) == 1
byte[4] unknown
GOTO ENDCOMP
//number of lod models in this component
uint32 number_of_models
if (number_of_models) == 0
GOTO SKIPCOMPOFFSET
uint32 end_component_offset
MARKER SKIPCOMPOFFSET
//this means lod, all models in a chunk are the same, just different poly
struct models[number_of_models]
byte[4] unknown
uint16 number_of_parts
byte[2] unknown
uint16 number_of_verts
uint16 number_of_normals
uint16 number_of_coordinates
byte[2] unknown
struct vertices[number_of_verts]
float32 x
float32 y
float32 z
struct normals[number_of_normals/2]
float32 x
float32 y
float32 z
struct coordinates[number_of_coordinates]
float32 u
float32 v
struct parts[number_of_parts]
uint16 num_tris
uint16 num_index_definitions
struct indices[num_tris]
struct axis[3]
uint16 first
uint16 second
uint32 num_coordinate_indices
struct coordinate_indices[num_coordinate_indices/3]
struct axis[3]
uint32 coordinate_index
uint8 part_color_red
uint8 part_color_green
uint8 part_color_blue
byte[8] unknown
uint32 size_of_texture_name
char[size_of_texture_name] texture_name
uint32 size_of_material_name
char[size_of_material_name] material_name
byte[4] unknown
MARKER ENDCOMP
//modelgifs
uint32 num_images
byte[4] unknown
struct images[num_images]
uint32 size_of_string
//store gif_char for later use, then go back and read entire gif_name
uint8 gif_char
SEEKREL -1
char[size_of_string] gif_name
uint32 width
uint32 height
uint32 num_colors
struct colors[num_colors]
uint8 r
uint8 g
uint8 b
struct rows[height]
struct pixels[width]
uint8 color_index
//for special textures beggining with "^"
if (gif_char) == 94
struct extra_images[1]
uint32 width
uint32 height
uint32 num_colors
struct colors[num_colors]
uint8 r
uint8 g
uint8 b
struct rows[height]
struct pixels[width]
uint8 color_index
