Silkroad maps (SMViewer) project

Hereby, I am announcing it as my new project. I am going to use VC++ and DirectX (9.x), so project wont be Mac/Linux portable.

I have many reasons why I am doing this; one of them is that I would like to make IntroScript editor.

Surface map file (.m)
Brief description of m-map file, which contains surface height and surface texture mapping (with rendering options and brightness).

Header

Size    Type            Name            Description
---------------------------------------------------
8       char            type            File format type
4       char            version         Version of file format type

Content
Map block

• Each map block contains header with unknown meaning.
• Each map block contains data block with unknown meaning.
• Each map block contains 17x17 grid of cells.

Size    Type            Name            Description
---------------------------------------------------
6       char            header          Header, unknown meaning
2023    -               -               Cells
546     char            unknown         Unknown data block

Map cell

• Water begins on level 0.

Size    Type            Name            Description
---------------------------------------------------
4       float           height          Height of map cell
10b                     surfaceId       Surface texture ID
1b                      flag_6
1b                      flag_5
1b                      flag_4
1b                      flag_3
1b                      flag_2
1b                      flag_1
1       char            light           Lightness of texture

VC++ notation

struct MBlock
{
        unsigned char   header[6];
        MCell           grid[17][17];
        unsigned char   unknown[546];
};


struct MCell
{
        float           height;
        unsigned short  surfaceId       : 10;
        unsigned short  flag_6          :  1;
        unsigned short  flag_5          :  1;
        unsigned short  flag_4          :  1;
        unsigned short  flag_3          :  1;
        unsigned short  flag_2          :  1;
        unsigned short  flag_1          :  1;
        unsigned char   light;
};

Object map file (.o)
Brief description of o-map file, which maps objects into world.

Content
Group

Size    Type            Name            Description
---------------------------------------------------
2       short           objectCount     Amount of objects in group

Block

Size    Type            Name            Description
---------------------------------------------------
4       long            objectId        Object model ID
4       float           positionX       X coord (from left bottom corner of region)
4       float           positionY       Y coord
4       float           positionZ       Z coord
2       short           unknown         0xffff or 0x0000
4       float           theta           Angle on Axis Y
4       long            unique          Unique id of object, if same, object is not shown
2       short           unknown         0x0000 or 0x0001
1       char            regionX         X of region to be used as offset
1       char            regionY         Y of region to be used as offset

VC++ notation

struct OGroup
{
       unsigned short  objectCount;
};

struct OBlock
{
       unsigned int    objectId;
       float           positionX;
       float           positionY;
       float           positionZ;
       unsigned short  unknown_1;
       float           theta;
       unsigned int    unique;
       unsigned short  unknown_2;
       unsigned char   regionX;
       unsigned char   regionY;
};