Types/MapGenPreset

Basics

A map gen preset. Used in Prototype/MapGenPresets.

Mandatory properties

order

Type: Types/Order

Specifies the ordering in the map generator gui.

Optional properties

default

Type: Types/bool

Default: true

Whether this is the default preset. If set to true, this preset may not have any other properties besides this and order.

If no MapGenPreset has default = true, the preset selector will have a blank preset label, having default settings. The "blank" preset goes away when another preset is selected.

basic_settings

Type: Types/table

This is a table with the below key/value pairs. All key/value pairs are optional. If not set they will just use the default values.

• terrain_segmentation - Types/MapGenSize

This is the inverse of "water scale" in the map generator GUI. So a water scale that shows as 50% in the GUI is a value of 1/0.5 = 2 for terrain_segmentation.

• water - Types/MapGenSize

Shown as water coverage in the map generator GUI.

• default_enable_all_autoplace_controls - Types/bool - Default: true

Whether undefined autoplace_controls should fall back to the default controls or not.

• autoplace_controls - Types/table

Table of Data.raw#autoplace-control name keys mapped to table values. Each table can have the following fields:

• frequency - Types/MapGenSize
• size - Types/MapGenSize
• richness - Types/MapGenSize

Example:

autoplace_controls =
  {
    ["iron-ore"] = { richness = 2, size = 0.5, frequency=2},
    ["enemy-base"] = { size = 1},
    ["trees"] = { richness = 4}
  }

• autoplace_settings - Types/table of AutoplaceSettings

Each setting in this table maps the string type to the settings for that type. Valid types are "entity", "tile" and "decorative".

• property_expression_names - Types/table

Map of property name (e.g. "elevation") to name of noise expression that will provide it. Entries may be omitted. A notable usage is changing autoplace behavior of an entity based on the preset, which cannot be read from a noise expression.

• starting_points - Types/table of Types/Position

Array of the positions of the starting areas.

• seed - Types/uint32

Read by the game, but not used or set in the GUI.

• width - Types/uint32

Amount of tiles from left to right. Silently limited to 2,000,000, +/- 1 million tiles from the center.

• height - Types/uint32

Amount of tiles from top to bottom. Silently limited to 2,000,000, +/- 1 million tiles from the center.

• starting_area - Types/MapGenSize

Size of the starting area. The starting area only effects enemy placement, and has no effect on resources.

• peaceful_mode - Types/bool
• cliff_settings - CliffPlacementSettings

advanced_settings

Type: Types/table

This is a table with the below key/value pairs. All key/value pairs are optional, if not set they will just use the existing values.

• pollution - Types/table

Property name	Type	Comment
enabled	Types/bool
diffusion_ratio	Types/double	Must be <= 0.25.
ageing	Types/double	Also known as dissipation rate. Must be >= 0.5.
enemy_attack_pollution_consumption_modifier	Types/double
min_pollution_to_damage_trees	Types/double
pollution_restored_per_tree_damage	Types/double

• enemy_evolution - Types/table

Property name	Type
enabled	Types/bool
time_factor	Types/double
destroy_factor	Types/double
pollution_factor	Types/double

• enemy_expansion - Types/table

Property name	Type	Comment
enabled	Types/bool
max_expansion_distance	Types/double
settler_group_min_size	Types/double
settler_group_max_size	Types/double
min_expansion_cooldown	Types/double	In ticks.
max_expansion_cooldown	Types/double	In ticks.

• difficulty_settings - Types/table

Property name	Type	Comment
recipe_difficulty	defines.difficulty_settings.recipe_difficulty
technology_difficulty	defines.difficulty_settings.technology_difficulty
technology_price_multiplier	Types/double
research_queue_setting	Types/string	Either "after-victory", "always" or "never".