Launching the Maze App
At this point, we assume you have finished installing Xcode. If you have not, then you will have difficulty following the upcoming content. Also, before continuing forward, you will need to download the project files for Maze app. Once you've completed both those items, then join us in launching the Maze app.
現在我們假設你已經下載好 Xcode，另外再繼續之前請下載 Maze app 的檔案 ，完成之後就把檔案解壓縮，你會看到 os-nd-robot-maze-1-master 資料夾 跟裡面的檔案。
After downloading the project files for the Maze app, you should see a directory structure resembling the following:
ios-nd-robot-maze-1-master
- Maze-ComplexRobot
- Maze-SimpleRobot
- Maze-Template
To get things started, we will be using the project in the Maze-SimpleRobot directory. So when Jarrod refers to the Maze project in the video, use the project in Maze-SimpleRobot directory.
接著我們要在 Xcode 裡打開 Maze 這個檔案，在教學影片內有完整的介紹。步驟上可以分成：
- 你可以用 control 加 空白鍵呼叫出 Mac 的搜尋 bar，然後開啟 Xcode。
- 在 launch screen 上點下 open another project 後去找我們剛剛下載的資料夾裡有個 Maze.xcodeproj ，點二下後開啟。
- 開啟後，可以按左上角的 play button (也叫 run button)，點了之後就會開啟 iOS Simulator(模擬器)。
備註：我們現在還用不到 playground (It is a great tool for experimenting and writing swift code)