SwiftUI Tic Tac Toe Online Multiplayer Game for iOS 15, MVVM

Create a SwiftUI iOS 15 tic tac toe app using MVVM by building a home view with a play button that presents a full screen game view.

Refactor the home view to MVVM by creating a reusable game button with dynamic title and background color, and add a home view model with a published isGameViewPresented.

Organize and implement the game view in a SwiftUI tic tac toe app on iOS 15 using MVVM, including waiting and loading views, a 3x3 grid, and responsive circles.

Use geometry reader to size a three-column tic tac toe grid with spacing and 0.7 opacity. Render X or O from system images, starting with a placeholder and updating on click.

Refactor the game grid view in SwiftUI for a tic tac toe iOS 15 MVVM app using a geometry proxy, and implement background, player indicator, and on-tap gestures.

Implement a leading loading indicator in SwiftUI for the iOS tic tac toe online multiplayer game, using a progress view. Use a full-screen system color background and scale progress view.

Build the game model as an observable object and move columns into a game view model, then use environment presentation mode to dismiss on quit.

Explore the online multiplayer tic tac toe game logic and model setup, implementing moves, player turns, win/draw checks, and real-time Firebase synchronization with MVVM architecture.

Create a game object in the view model to test moves offline, initialize nine empty moves, check occupancy, and process player moves with published updates for multiplayer readiness.

Implement win and draw checks for a tic tac toe game by modeling nine positions, using compactMap to filter out empty spots, and comparing moves against predefined winning index patterns.

Determine a winner by filtering a player's moves, transforming them into position sets, and matching against wind patterns; handle blocked moves and draw logic to control turns.

Create a local user model with an automatically generated id and persist it to user defaults, enabling the app to load the current user and join or start online games.

Learn how to add Firebase to an iOS project using Swift Package Manager, initialize Firebase at app startup, and enable real-time updates with Firestore for a multiplayer game.

Set up Firebase helpers to manage a game collection in Cloud Firestore, using a singleton Firebase service to create, access, and monitor game state in real time.

Implement the start game function by checking firebase for an available game, then join or create a game with the user id, and listen for changes to update the game.

Create a new online tic tac toe game by assigning player one, managing blocks and joins, and saving the game to firebase with encoded data.

Start the game flow on game view load by calling the firebase service to join or create a game and listen to the published game object with Combine.

Implement delete game function to remove the game document from Firebase when a player quits, preventing abandoned games and enabling new matches. Ensure safe optional handling and join logic.

Update game function enables joining an existing online tic tac toe game by updating the game object in firebase, using required query indexes.

Listen for real-time changes in a SwiftUI tic tac toe online multiplayer game with a Firebase document snapshot listener, updating the published game object.

Dynamically identify whether the local player is X or O using the current user id, then update the game state on every change to detect wins and notify the player.

Create a dynamic alert system for a SwiftUI MVVM tic tac toe game by adding an AlertItem model with identifiable id, title, message, and patterns for win and quit.

Explain how to implement user alerts in a SwiftUI MVVM game by using an optional alert item published from the game view model, handling win, lose, rematch, and quit.

Explore the reset game function for a SwiftUI mvvm tic tac toe online multiplayer, managing a rematch IDs array, resetting moves and winner state, and updating firebase to start game.

Build a game notification system for a SwiftUI MVVM tic tac toe online game. Update states waiting for player, started, finished via a published notification in the view model.