Replaced the "showGames" and "showUsage" flags in the AmiiboFilter filter with an enumeration.

Sources/Filters/AmiiboFilter.swift

@@ -10,8 +10,7 @@ public struct AmiiboFilter {
     private let gameSeries: String?
     private let amiiboSeries: String?
     private let character: String?
-    private let showGames: Bool
-    private let showUsage: Bool
+    private let showExtras: ShowExtras
     
     // MARK: Initialisers
     
@@ -24,8 +23,7 @@ public struct AmiiboFilter {
         gameSeries: String? = nil,
         amiiboSeries: String? = nil,
         character: String? = nil,
-        showGames: Bool = false,
-        showUsage: Bool = false
+        showExtras: ShowExtras = .none
     ) {
         self.id = id
         self.head = head
@@ -35,8 +33,7 @@ public struct AmiiboFilter {
         self.gameSeries = gameSeries
         self.amiiboSeries = amiiboSeries
         self.character = character
-        self.showGames = showGames
-        self.showUsage = showUsage
+        self.showExtras = showExtras
     }
     
 }
@@ -82,12 +79,13 @@ extension AmiiboFilter: Filter {
             parameters[.Key.character] = character
         }
         
-        if showGames {
+        switch showExtras {
+        case .games:
             parameters[.Key.showGames] = nil
-        }
-        
-        if showUsage {
+        case .usage:
             parameters[.Key.showUsage] = nil
+        default:
+            break
         }
 
         return parameters
@@ -95,6 +93,14 @@ extension AmiiboFilter: Filter {
     
 }
 
+// MARK: - Enumerations
+
+public enum ShowExtras {
+    case none
+    case games
+    case usage
+}
+
 // MARK: - String+Key
 
 private extension String {