add layers for new image and new game

src/common/GameCommon.ts

@@ -8,6 +8,9 @@ export type EncodedPlayer = Array<any>
 export type EncodedPiece = Array<any>
 export type EncodedPieceShape = number
 
+// TODO: maybe something other than string in the future
+export type Category = string
+
 interface GameRng {
   obj: Rng
   type?: string
@@ -22,6 +25,19 @@ interface Game {
   rng: GameRng
 }
 
+export interface Image {
+  file: string
+  url: string
+  category: Category
+  title: string
+}
+
+export interface GameSettings {
+  tiles: number
+  image: Image
+  scoreMode: ScoreMode
+}
+
 export interface Puzzle {
   tiles: Array<EncodedPiece>
   data: PuzzleData