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JtRH Graphics - In-Depth on GeneralTiles, Style1, and the *.tim files. (By "coppro")

I will be giving a comprehensive guide to JtRH Tile modding. This is for two things: GeneralTiles and Style1. I am not going over external Style files, or modding freely-distributed files.

1. The .tim file:

The .tim file tells DROD how the images you give it replace existing tiles. This is only used for modular modding (See Section 2). The .tim file setup is simple: Each line corresponds to a line in your image. On that line are numbers, either a single number or a range (5-32), seperated by commas. Also, there are sometimes numbers preceeded by exclamation points.

Sample .tim:

35,157,45-49,!7
53,754,50-54,53-55,!4

What this means: The first row of the .tim corresponds to the first row of the image, so the first line of the image would mean that tile 1 would replace tile 35 ingame, tile 2 would replace tile 157, tiles 3-7 would replace 45-49, and the last 7 squares are unused. The second row is similar. The first tile goes in slot 53, the next one replaces 754, the next 5 replace 50-54, the next 4 are 53-55, and the last 4 are unused. (That's what the exclamation point means: this number are unused).

2. Modular Modding:

Modular Modding is when you only replace part of a tileset using .tim files (See Section 1). Without modular modding, you have to replace every single element of the tileset, which can be annoying, especially if you have some awesome mod for snakes but can't publicize it because Caravel won't let you have the rest of the tileset. There are three steps to modular modding:

#1: Prepare an image file and place in Data/Bitmaps
#2: Prepare a .tim file and place in Data/Bitmaps
#3: Add a line to drod.ini

The first two you should be easy. The drod.ini file can be found in the Data folder. To add your modular mod, you need your .tim and .jpg/.png/.bmp to have the same filename before the dot and then add the following line to drod.ini somewhere in the Graphics Section:

[TilesetYouAreReplacing]=[YourFilename]

Replaceable tilesets are: GeneralTiles,Style1,Style2, and Style3.
They are, in order: Enemies, Foundation, Deep Spaces, Iceworks.

Ensure that your line is somewhere after the line where it says
[TilesetYouAreReplacing]=[TilesetYouAreReplacing]

You can install however many modular mods as you like, just remember that each one will override the ones before it in drod.ini.

3. StyleX.tim

Walls all follow the same rules for drawing. I will include them with diagrams for the first regular wall, and then you can extrapolate for the cracked walls. _ means floor, X means wall, O doesn't matter. The center X is the wall in question.

Shadow tiles only support black and white to make shadows.

Please note that these are arranged according to position in StyleX.png as opposed to something more logical.

Editor's Note: Coppro wishes pass on the information that the section referencing walls is incorrect. This information will hopefully be corrected soon.

663-709: Wall. Both sturdy and regular walls are included. The rule of thumb is that if regular wall is completely surrounded by wall, it will not considered wall for purposes of drawing and replaced by the wall image (more on that coming).

663: O_O
     _XX
     OXX

664: O_O
     _XX
     OX_

665: O_O
     XX_
     XXO

666: O_O
     XX_
     _XO

667: OXX
     _XX
     O_O

668: OX_
     _XX
     O_O

669: XXO
     XX_
     O_O

670: _XO
     XX_
     O_O

671: O_O
     XXX
     XXX

672: O_O
     XXX
     XX_

673: O_O
     XXX
     _XX

674: O_O
     XXX
     _X_

675: XXX
     XXX
     O_O

676: _XX
     XXX
     O_O

677: XX_
     XXX
     O_O

678: _X_
     XXX
     O_O

679: XXX
     XXX
     XXX

680: _XX
     XXX
     XXX

681: XX_
     XXX
     XXX

682: _X_
     XXX
     XXX

683: XXX
     XXX
     XX_

684: _XX
     XXX
     XX_

685: XX_
     XXX
     XX_

686: _X_
     XXX
     XX_

687: O_O
     _X_
     OXO

688: O_O
     XX_
     O_O

689: OXO
     _X_
     O_O

690: O_O
     _XX
     O_O

691: O_O
     _X_
     O_O

692: O_O
     XXX
     O_O

693: OXO
     _X_
     OXO

694: OXX
     _XX
     OXX

695: OX_
     _XX
     OXX

696: OXX
     _XX
     OX_

697: OX_
     _XX
     OX_

698: XXO
     XX_
     XXO

699: _XO
     XX_
     XXO

700: XXO
     XX_
     _XO

701: _XO
     XX_
     _XO

702: XXX
     XXX
     _XX

703: _XX
     XXX
     _XX

704: XX_
     XXX
     _XX

705: _X_
     XXX
     _XX

706: XXX
     XXX
     _X_

707: _XX
     XXX
     _X_

708: XX_
     XXX
     _X_

709: _X_
     XXX
     _X_

 ____ ____ ____ ____
| ES | ESW|  SW|  S |
|NES |NESW|N SW|N S |
|NE  |NE W|N  W|N   |
| E  | E W|   W|    |

 _________________________ _________________________ _________________________ _________________________ _________________________
|          Top Left corner|                 Top Edge|        Top Right corner|Inner Bottom-Right Corner| Inner Bottom-Left Corner|
|                Left Edge|                   Middle|              Right Edge|       Inner NW/SE Corner|       Inner SW/NE Corner|
|       Bottom Left corner|              Bottom Edge|     Bottom Right corner|    Inner Top-Left Corner|   Inner Top-Right Corner|

 ________________________ ________________________ ________________________ ________________________ ________________________
| Westward Head (Frame 1)|                W/E Body|           Eastward Tail|                  Unused|                  Unused|
|           Westward Tail| Eastward Head (Frame 1)|                E/S Body|                W/S Body|Northward Head (Frame 2)|
|Northward Head (Frame 1)|          Northward Tail|                N/E Body|                N/W Body|                N/S Body|
|          Southward Tail|Southward Head (Frame 1)| Westward Head (Frame 2)| Eastward Head (Frame 2)|Southward Head (Frame 2)|

 __ __ __ __ __ __ __ 
|_X|X_|__|XX|X_|XX|_X|
|__|__|X_|__|X_|X_|X_|