Difference between revisions of "Automatic base building"
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=== Flood Fill === |
=== Flood Fill === |
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[[file:PrototypeFloodFill.png|left|200px|An example of a flood-fill, filling the 'outside' of a predefined base area.]][https://en.wikipedia.org/wiki/Flood_fill Flood Fill] is useful for defining or testing areas to make sure they are secure (like walls around a base) or defining areas into groups. Filling an area and gathering room positions allows you to use these positions later, for whatever purpose you see fit. |
[[file:PrototypeFloodFill.png|left|200px|An example of a flood-fill, filling the 'outside' of a predefined base area.]][https://en.wikipedia.org/wiki/Flood_fill Flood Fill] is useful for defining or testing areas to make sure they are secure (like walls around a base) or defining areas into groups. Filling an area and gathering room positions allows you to use these positions later, for whatever purpose you see fit. |
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=== Minimum Cut === |
=== Minimum Cut === |
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[[file:Mincutbase.png|left|200px|A base map for minCut, yellow is walkable, purple is exit, green is protected (can't cut)]][[file:MincutResult.png|left|200px|Result of the previous base map after cut]][https://en.wikipedia.org/wiki/Minimum_cut Minimum Cut] is useful for rampart / wall placement. |
[[file:Mincutbase.png|left|200px|A base map for minCut, yellow is walkable, purple is exit, green is protected (can't cut)]][[file:MincutResult.png|left|200px|Result of the previous base map after cut]][https://en.wikipedia.org/wiki/Minimum_cut Minimum Cut] is useful for rampart / wall placement. |
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[[Category:Strategy]] |
[[Category:Strategy]] |
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Revision as of 21:32, 19 January 2021
Automatic base building is the process of finding, claiming and, building up a claimed room without using the UI and direct user input. For many fully a fully automatic bot is the end-goal and automatic base building is a large step.
Types
There's a few types of automatic bases, depending on method used.
Bunker
The easiest by far is to have a pre-defined 'bunker' containing all structures you are intent on using and simply finding an open area to place it. The 'center' of the bunker anchor and from there you can generate the structures of your pre-determined bunker based on their relative position to the anchor. As long as the space is there, there should be no conflicts in the generation.
Stamp/Tile-sets
Normally using a core tile/stamp, you can then determine locations for other pre-defined tile-sets/stamps to be placed around your anchor dependent on the terrain in the room.
Dynamic/Pattern Generation
Using a given open area, you can generate a structure or set of structures grouped together based on some basic rules.
Useful Algorithms
There are several useful algorithms to take into consideration when automatically building your base.
Distance-Transform
Using the Screep's terrain, you can use Distance Transformation to have natural walls be barrier pixels and swamps/plains to be allowed. Using this, you can then create a matrix/object/array of all positions with a score of how much open space is available around a given roomPosition. This is direly useful to know how much you can fit in an area, without having user input.
Flood Fill
Flood Fill is useful for defining or testing areas to make sure they are secure (like walls around a base) or defining areas into groups. Filling an area and gathering room positions allows you to use these positions later, for whatever purpose you see fit.
Minimum Cut
Minimum Cut is useful for rampart / wall placement.