Landgen usage (Worms 2)

(Up to Game logic)

Landgen (short for Land Generator) is the command line program that generates land files for Worms 2. It's located at "%Worms_2_Install_Dir%\Binaries\Landgen.exe". Landgen is executed by frontend, which sets "Default Dir" for Landgen to "Worms 2 Install Dir". This means the paths passed to Landgen by frontend are relative to "Install Dir", not "Binaries\".

Landgen is used to create:

• Thumbnails for Terrain Editor

Command Line: Landgen.exe /thumbnail Path\name_of_generated_thumbnail Land_base_line Base_line_noise Noise_randomization

Example : Landgen.exe /thumbnail levels\thumbs.dat 444831613 24 54

• Previews - 1:1 terrain data file that is used in manual terrain editing.

Command Line: Landgen.exe /preview Path\name_of_generated_preview Land_base_line Base_line_noise Noise_randomization

Example : Landgen.exe /preview levels\preview.dat -1891240261 95 29

• Land that is used for game and land preview in Terrain Editor

Command Line: Landgen.exe /generate Path\name_of_generated_land Path_to_level_sprites_dir Path_to_water_sprites_dir Land_base_line Object_code Objects_count Base_line_noise Noise_randomization

Example : Landgen.exe /generate data\land.dat .\data\level\FARM .\data\water\Blue 1765502980 24323 50 4 40

• Land for game and land preview generated from edited terrain

Command Line: Landgen.exe /grafitti Path\name_of_generated_land Path_to_edited_land_data Path_to_level_sprites_dir Path_to_water_sprites_dir Land_type Object_code Objects_count

Example : Landgen.exe /grafitti data\land.dat levels\grafitti.dat .\data\level\SNOW .\data\water\Blue 1 18688 50

Land_base_line 

random signed 32-bit integer, used for land randomization, first 8 hexadecimal digits of Terrain Code, never equals to 0

Base_line_noise 

random number, values 0-100, used for land randomization, 9-10 hex-digits of Terrain Code

Noise_randomization 

random number, values 0-100, used for land randomization, 11-12 hex-digits of Terrain Code

For Line Noise and Noise randomization hex values greater than 100 recalculates as [HexVal MOD 100].

Example : Terrain Code = 2E3C132D6466 -> Land_base_line = [2E3C132D] = 775689005; Base_line_noise = [64] = 100; Noise_randomization = [66] = [102 MOD 100] = 2

Object_code 

random signed 32-bit integer, used for level object's sprites randomization

Random numbers are generator seeds, which means same numbers generate same terrain. Still researching how this numbers change affects generated terrain.

Objects_count 

set how many object appears on terrain, values 0-100, by default = 50

Land_type 

0 = Open, 1 = Cavern

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There can be more. Research continues.