30 lines
1.1 KiB
GDScript
30 lines
1.1 KiB
GDScript
class_name MoveValidator
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extends RefCounted
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## Pure §6 validation: an emitted move is legal iff its canonical key is in the
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## turn's available_moves (which NpcContent already computed from live state).
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## No state reads here — membership is the whole test. Invalid moves are not an
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## error; they are dropped and returned separately so the caller can log them.
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const ID_MOVES := ["reveal", "offer_quest", "give_item", "accept_item"]
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const BARE_MOVES := ["adjust_disposition", "refuse", "end_conversation", "become_hostile"]
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static func _key(move: Dictionary) -> String:
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var name: String = move.get("name", "")
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var args: Array = move.get("args", [])
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if name in ID_MOVES:
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return "%s(%s)" % [name, str(args[0])] if not args.is_empty() else name
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return name # bare/value moves key on the name alone
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static func validate(moves: Array, available_moves: Array) -> Dictionary:
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var valid: Array = []
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var dropped: Array = []
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for move in moves:
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var name: String = move.get("name", "")
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if (name in ID_MOVES or name in BARE_MOVES) and _key(move) in available_moves:
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valid.append(move)
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else:
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dropped.append(move)
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return {"valid": valid, "dropped": dropped}
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