Table of Contents
DMA file format
(Originally from http://www.shikadi.net/moddingwiki/DMA_Format)
The DMA format stores information about the properties of tiles used in game maps. In Jill of the Jungle the file is called jill.dma.
File format
DMA files contain no header - just a list of entries repeated until the end of the file.
Tile entry
Each tile entry is arranged in the following structure:
| Offset | Type | Description |
|---|---|---|
| 0 | INT16LE code | Map code |
| 2 | UINT8 image | Index into the Shape collection (tileset) where the graphic is located |
| 3 | UINT8 tileset | Shape collection number |
| 4 | INT16LE flags | Tile properties |
| 6 | UINT8 lenName | Length in bytes of the name |
| 7 | char[lenName] name | Name of this element. |
The background layer in the map file contains a list of codes, which correspond to the code value above. This is used to look up which image to draw for each tile in the map layer.
Note that only the lower six bits of tileset refer to the tile number. The purpose of the upper unknown bits is unknown. To get a valid tileset index use tileset & 0x3F.
Tile properties
| Bit | Hex | Name | Description |
|---|---|---|---|
| - | 0x0000 | <zero> | Default solid block |
| 1 | 0x0001 | F_PLAYERTHRU | Blocks you can walk, jump or fall through (background tiles, the path on the overhead map, etc.) |
| 2 | 0x0002 | F_STAIR | Blocks that you can stand on (can also jump up through when combined with F_PLAYERTHRU) |
| 3 | 0x0004 | F_VINE, | Can climb this block - usually combined with F_PLAYERTHRU (giving 0x0005) |
| 4 | 0x0008 | F_MSGTOUCH | Activates game-specific code when touched |
| 5 | 0x0010 | F_MSGDRAW | Regular blocks have just one shape, f_msgdraw triggers msg_block(msg_draw) for animated blocks. |
| 6 | 0x0020 | F_MSGUPDATE | game-specific code (through msg_block(msg_update)) at every frame. For animated blocks. |
| 7 | 0x0040 | F_INSIDE | This block contains text inside it |
| 8 | 0x0080 | F_FRONT | object property : Foreground object |
| 9 | 0x0100 | F_TRIGGER | object property : object is trigger (like object 24). If an object (like 15) want to send on/off, this object seach any object who have this flag and counter value |
| 10 | 0x0200 | F_BACK | object property: Background object (e.g. torches) |
| 10 | 0x0200 | F_TINYTHRU | (likely PlayerThru when player is in 'mini' mode) |
| 11 | 0x0400 | F_ALWAYS | object property : “Always updates object” |
| 12 | 0x0800 | F_KILLABLE | object property : monster can be killed with regular weapon. |
| 13 | 0x1000 | F_FIREBALL | object property : object is a fireball |
| 14 | 0x2000 | F_WATER | A water tile. regular player will sink, the S.U.B. and aquatic monster can swim through it, but not out of it |
| 15 | 0x4000 | F_WEAPON | object property : object is a regular weapon |
| 16 | 0x8000 | (unused) |
Note that the same “flag set” is used for both blocks and objects. Some properties only apply to blocks, some only apply to objects, some to both (f_msgtouch), and some flags have a different meaning for blocks and tile (e.g. 0x200).
Note for the object, flag not store in Map File. Flag are init by engine at load of oject.
