69 lines
2.2 KiB
GDScript3
69 lines
2.2 KiB
GDScript3
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class_name PlanetSetups
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extends RefCounted
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# Registry of authored PlanetSetup resources. Deliberately scans
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# res://PlanetSetups/ at first use instead of a hardcoded preload
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# dictionary (contrast PlanetDefinitions.gd), so dropping a new .tres in
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# that folder is the only step needed to add a setup - the map editor
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# (#48) writes there directly.
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const SETUPS_DIR: String = "res://PlanetSetups"
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# Compared against get_script() rather than an `is PlanetSetup` check - the
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# same load-order hazard as PlanetSurfaceController's setup_host: a global
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# class_name identifier can be looked up before an import pass has
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# registered it, while a direct script preload never depends on that cache.
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const PLANET_SETUP_SCRIPT: Script = preload("res://PlanetSetup.gd")
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static var _all: Array = []
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static var _scanned: bool = false
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static func _ensure_scanned() -> void:
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if _scanned:
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return
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_scanned = true
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var dir: DirAccess = DirAccess.open(SETUPS_DIR)
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if dir == null:
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return
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dir.list_dir_begin()
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var file_name: String = dir.get_next()
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while file_name != "":
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if not dir.current_is_dir() and file_name.ends_with(".tres"):
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var res: Resource = load(SETUPS_DIR + "/" + file_name)
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if res != null and res.get_script() == PLANET_SETUP_SCRIPT:
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_all.append(res)
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file_name = dir.get_next()
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dir.list_dir_end()
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static func rescan() -> void:
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# The map editor calls this after saving so a freshly written setup is
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# visible without restarting the process.
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_all = []
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_scanned = false
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_ensure_scanned()
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static func all() -> Array:
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_ensure_scanned()
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return _all
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static func setups_for_profile(profile_id: String) -> Array:
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var result: Array = []
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for setup in all():
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if setup.surface_profile_id == profile_id:
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result.append(setup)
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return result
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static func setup_for_planet(planet_id: String, profile_id: String) -> Resource:
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# Same pattern as WorldGen.planet_data_at_chunk: seeded purely from the
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# planet's own stable id, so the same planet always resolves to the
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# same setup from anywhere, with nothing stored.
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var candidates: Array = setups_for_profile(profile_id)
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if candidates.is_empty():
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return null
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var rng: RandomNumberGenerator = RandomNumberGenerator.new()
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rng.seed = hash(planet_id)
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return candidates[rng.randi() % candidates.size()]
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