[[building]]
id = "belt"
tooltip = "Transports items one tile at a time in the direction it faces."
cost = 2
player_placeable = true
construction_time_seconds = 0.2
surface_mask = ["A>"]

[[building]]
id = "splitter"
tooltip = "Splits an incoming item stream between two outputs, with optional per-output filters."
cost = 3
player_placeable = true
construction_time_seconds = 0.5
surface_mask = ["<A>"]

[[building]]
id = "tunnel_entry"
tooltip = "Sends items underground to a matching tunnel exit, letting belts cross."
cost = 5
player_placeable = true
construction_time_seconds = 0.5
surface_mask = ["A>"]

[[building]]
id = "tunnel_exit"
tooltip = "Receives items from a matching tunnel entry and pushes them onward."
cost = 5
player_placeable = true
construction_time_seconds = 0.5
surface_mask = ["A>"]

[[building]]
id = "miner"
tooltip = "Extracts a selected ore from the asteroid; every tile yields any ore."
cost = 15
player_placeable = true
construction_time_seconds = 1
surface_mask = [
  "A>",
]

[[building]]
id = "smelter"
tooltip = "Melts ore or scrap into basic materials. No recipe selection needed."
cost = 20
player_placeable = true
construction_time_seconds = 1
surface_mask = [
  "AA",
  " v",
]

[[building]]
id = "assembler"
tooltip = "Crafts a selected recipe from the production tree into intermediate or final parts."
cost = 35
player_placeable = true
construction_time_seconds = 1
surface_mask = [
  "AA ",
  "AA>",
]

[[building]]
id = "reprocessing_plant"
tooltip = "Consumes scrap and yields one random higher-tier product per cycle."
cost = 40
player_placeable = true
construction_time_seconds = 1
surface_mask = [
  "AAA ",
  "AAA>",
  "AAA ",
]

[[building]]
id = "shipyard"
tooltip = "Builds autonomous combat ships from a selected schematic and module layout."
cost = 60
player_placeable = true
construction_time_seconds = 1
surface_mask = [
  "AAAS>",
  "AAAS ",
]

[[building]]
id = "salvage_bay"
tooltip = "Drop-off point where salvage ships unload collected scrap onto belts."
cost = 25
player_placeable = true
construction_time_seconds = 1
output_buffer_capacity = 20
surface_mask = [
  "<AAS",
  " AAS",
]