iOS测验应用程序的朋友系列，用swift和Firestore构建
朋友-测验应用
朋友系列的IOS测验应用程序。游戏数据保存在火炉中。
启动屏幕和主屏幕
The game
Every round the user chooses his answer the correct answer is colored in green. Every game has 3 lives – Every time the user gets a question wrong one heart will be colored grey. If the user gets 3 questions wrong than the game will be over.
The app also supports landscape mode
The result screen
At the end of the game the result screen will show the number of points the user got. The result will be saved to the Firestore if its higher than the current HighScore.
Firestore Database
