conforms file names to consistant standard

scripts/resources/cassette.gd

@@ -0,0 +1,25 @@
+class_name Cassette
+extends Item
+
+enum Role {
+	GENERIC = 0,
+	ENGINEER = 1,
+	MAGE = 2,
+}
+
+@export var cost: int
+@export var rarity: Data.Rarity
+@export var role: Role
+@export var turret_scene: PackedScene
+@export var weapon_scene: PackedScene
+@export var weapon_stats: CassetteText
+@export var tower_stats: CassetteText
+@export var tags: Array[Data.cassetteTags]
+
+
+static func get_role_cassettes(role: Cassette.Role, cassettes: Array[Cassette] = Data.cassettes) -> Array[Cassette]:
+	var valid_cassettes: Array[Cassette] = []
+	for cassette: Cassette in Data.cassettes:
+		if cassette.role == role:
+			valid_cassettes.append(cassette)
+	return valid_cassettes