Are you ready to level up your Flutter skills and create a fun and interactive game? Look no further! In this step-by-step tutorial, we will guide you through building your very own Tic Tac Toe game using Flutter and GetX. Get ready to immerse yourself in the world of mobile app development as we break down each step to help you create a sleek and engaging game that will impress friends and family alike. Let’s get started on this exciting journey together!
How to Build a Tic Tac Toe Game Using Flutter and GetX: Step-by-Step Tutorial
Introduction to Tic Tac Toe Game and Flutter Development
Tic Tac Toe is a classic game that has been played for centuries. With its simple rules and strategic gameplay, it has remained a popular choice for players of all ages. In this tutorial, we will learn how to develop a Tic Tac Toe game using the Flutter framework and GetX state management library.
Flutter is an open-source UI software development kit created by Google. It uses the Dart programming language and provides developers with a fast and efficient way to build beautiful native apps for Android, iOS, web, and desktop platforms. One of the key features of Flutter is its hot reload functionality, which allows developers to see changes in their code instantly without losing app state or restarting the app.
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GetX is a powerful state management library for Flutter that provides easy-to-use APIs for managing application states efficiently. It follows the reactive programming paradigm, where data flows in one direction from sources (e.g., user input) to consumers (e.g., UI components). This makes it ideal for building complex applications with multiple screens and states.
In this tutorial, we will use these two technologies together to create our very own Tic Tac Toe game. We will start by setting up our development environment with all the necessary tools and dependencies. Then, we will dive into coding our game step-by-step.
Firstly, we will design our user interface using Flutter widgets such as Containers, Rows, Columns, Buttons, etc. These widgets enable us to create visually appealing layouts easily.
Next, we will implement logic for handling player moves and checking for wins or draws in our game board using GetX’s reactive state management approach. This ensures that any changes made in the game’s state are reflected in real-time on the screen.
We will also add animations and sound effects to enhance user experience and make our game more engaging.
By following this tutorial, you will not only learn how to build a basic Tic Tac Toe game but also gain a deeper understanding of Flutter and GetX development concepts. This will enable you to apply your knowledge to create more complex and exciting applications in the future.
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In the next section, we will cover the setup process for our project, so let’s get started!
Benefits of Using GetX in Developing Games:
- Efficient State Management:
One of the biggest advantages of using GetX in game development is its efficient state management system. With GetX, developers can easily manage and update different states within the game without causing any performance issues. This is especially important in fast-paced games where real-time updates are crucial for a seamless gaming experience. - Simplified Code Structure:
GetX follows a simple and intuitive code structure that makes it easier for developers to understand and implement various functionalities in their game. It uses a reactive programming approach, which means that changes made to one variable automatically reflect in other components associated with it. This simplifies the coding process and reduces the chances of errors or bugs. - Built-in Navigation System:
Navigation plays a key role in game development as it allows players to move between different screens or levels seamlessly. In Flutter, navigation can be challenging to implement, but with GetX, it becomes much simpler as it offers a built-in navigation system called “Get Routing”. This feature allows developers to define routes and navigate between them without writing complex code. - Integration with Other Packages:
Flutter has an extensive library of third-party packages that developers can use to enhance their games’ functionality and aesthetics. Fortunately, GetX seamlessly integrates with these packages, making it easier for developers to use them while also leveraging the benefits of GetX’s state management system. - Lightweight and Fast Performance:
GetX is known for its lightweight nature, which means that incorporating it into your game will not significantly increase its file size or affect its performance negatively. In fact, due to its efficient state management system and simplified code structure, using GetX can improve your game’s overall performance by reducing lag time and improving loading speeds. - Easy Debugging:
Debugging is an essential part of any software development process as it helps identify and fix any issues or bugs before launching the final product. GetX offers a plethora of debugging tools that make it easier for developers to identify and resolve any errors or bugs in their game quickly.
Using GetX in game development can greatly benefit developers by providing efficient state management, simplifying the code structure, offering a built-in navigation system, easy integration with other packages, lightweight and fast performance, and easy debugging. These benefits make GetX a valuable tool for creating high-quality games with excellent user experience.
Setting Up the Project: Installing Flutter and GetX Dependencies
Before we dive into building our Tic Tac Toe game using Flutter and GetX, we need to make sure that our development environment is set up properly. In this section, we will guide you through the process of installing all the necessary dependencies for our project.
Step 1: Install Flutter
The first step is to install Flutter, which is an open-source framework for building high-quality native apps for iOS, Android, web, and desktop from a single codebase. To install Flutter on your machine, follow these steps:
- Visit the official Flutter website (https://flutter.dev/) and click on the “Get Started” button.
- Select your operating system (Windows/Mac/Linux) from the dropdown menu and click on “Download SDK”.
- Once the download is complete, extract the downloaded file to a suitable location.
- Add the path of the extracted flutter/bin folder to your PATH variable.
- Open a terminal or command prompt window and type “flutter doctor”. This command will check if there are any issues with your installation and provide guidance on how to fix them.
Congratulations! You have successfully installed Flutter on your machine.
Step 2: Create a new project
Now that we have installed Flutter, let’s create a new project using it.
- Open Android Studio or Visual Studio Code (whichever IDE you prefer).
- Click on “Open an existing Android Studio project” option if you are using Android Studio or click on “Open Folder” if you are using Visual Studio Code.
- Navigate to where you want to save your project and click “OK”.
- On Android Studio, go to File > New > New Flutter Project.
- Give your project a name and select its location.
- Click Next until you reach the final screen where you can choose whether to include Kotlin support in your app (we won’t need it for this tutorial).
- Click Finish to create your project.
Step 3: Add GetX dependency
Now that we have our Flutter project set up, we can add the GetX dependency to it. GetX is a powerful state management library that makes it easier and faster to build complex apps with Flutter.
- Open the pubspec.yaml file in your project.
- Under dependencies, add “get:” followed by the latest version of GetX (check https://pub.dev/packages/get for the latest version).
- Save the changes and click on “Pub get” when prompted.
Congratulations! You have successfully added GetX as a dependency in your project.
All Code
📁Controller.dart
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:get/get_rx/get_rx.dart';
class Controller extends GetxController {
RxList<String> gameValue = ["", "", "", "", "", "", "", "", ""].obs;
RxBool isWinner = false.obs;
RxBool isX = false.obs;
RxInt click = 0.obs;
void addValue(int index) {
if (gameValue[index] == "") {
if (isX.value) {
gameValue[index] = "X";
isX.value = !isX.value;
click++;
} else {
gameValue[index] = "O";
isX.value = !isX.value;
click++;
}
} else {
print("Invalid click");
}
checkWinner();
if (isWinner.value == false) {
matchDrawMessage(click);
}
}
void matchDrawMessage(click) {
if (click == 9) {
Get.defaultDialog(
title: "Match Draw",
cancel: Text("Cancle"),
confirm: TextButton(
onPressed: () {
gameValue.value = ["", "", "", "", "", "", "", "", ""];
click.value = 0;
Get.back();
},
child: Text("PlayAgain"),
),
);
}
}
void checkWinner() {
if (gameValue[0] == gameValue[1] &&
gameValue[0] == gameValue[2] &&
gameValue[0] != "") {
WinnerDialogBox();
} else if (gameValue[3] == gameValue[4] &&
gameValue[3] == gameValue[5] &&
gameValue[3] != "") {
WinnerDialogBox();
} else if (gameValue[6] == gameValue[7] &&
gameValue[6] == gameValue[8] &&
gameValue[6] != "") {
WinnerDialogBox();
}
// Horzontal
else if (gameValue[0] == gameValue[3] &&
gameValue[0] == gameValue[6] &&
gameValue[0] != "") {
WinnerDialogBox();
} else if (gameValue[1] == gameValue[4] &&
gameValue[1] == gameValue[7] &&
gameValue[1] != "") {
WinnerDialogBox();
} else if (gameValue[2] == gameValue[5] &&
gameValue[2] == gameValue[8] &&
gameValue[2] != "") {
WinnerDialogBox();
// digobalss
} else if (gameValue[0] == gameValue[4] &&
gameValue[0] == gameValue[8] &&
gameValue[0] != "") {
WinnerDialogBox();
} else if (gameValue[2] == gameValue[4] &&
gameValue[2] == gameValue[6] &&
gameValue[2] != "") {
WinnerDialogBox();
} else {}
}
void WinnerDialogBox() {
isWinner.value = true;
Get.defaultDialog(
title: "🥇 Winner 🥇",
content: Column(
children: [
const Icon(
Icons.confirmation_num_rounded,
size: 50,
color: Colors.green,
),
SizedBox(height: 10),
isX.value
? const Text(
"X Is Winner",
style: TextStyle(
fontSize: 30,
),
)
: const Text(
"O Is Winner",
style: TextStyle(
fontSize: 30,
),
),
Row(
children: [
ElevatedButton.icon(
onPressed: () {},
icon: Icon(Icons.close),
label: Text("Close"),
),
ElevatedButton.icon(
onPressed: () {
gameValue.value = ["", "", "", "", "", "", "", "", ""];
click.value = 0;
isWinner.value = false;
Get.back();
},
icon: Icon(Icons.play_arrow),
label: Text("Play Again"),
),
],
)
],
));
}
}
📁HomePage.dart
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:get/get.dart';
import 'package:tectaktoe/Controller.dart';
class HomePage extends StatelessWidget {
const HomePage({super.key});
@override
Widget build(BuildContext context) {
Controller controller = Get.put(Controller());
return Scaffold(
backgroundColor: Colors.grey[800],
body: SafeArea(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(mainAxisAlignment: MainAxisAlignment.center, children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Obx(
() => Container(
padding: EdgeInsets.symmetric(horizontal: 50, vertical: 10),
decoration: BoxDecoration(
color: controller.isX.value == false
? Colors.blue
: Colors.grey[800],
borderRadius: BorderRadius.circular(10),
),
child: Text(
"O",
style: TextStyle(
fontSize: 40,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
),
Obx(
() => Container(
padding: EdgeInsets.symmetric(horizontal: 50, vertical: 10),
decoration: BoxDecoration(
color: controller.isX.value == false
? Colors.grey[800]
: Colors.blue,
borderRadius: BorderRadius.circular(10),
),
child: Text(
"X",
style: TextStyle(
fontSize: 40,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
),
],
),
SizedBox(height: 50),
Expanded(
child: GridView.builder(
itemCount: 9,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 3),
itemBuilder: (context, index) {
return InkWell(
onTap: () {
print(index);
controller.addValue(index);
},
child: Obx(
() => Container(
margin: EdgeInsets.all(2),
decoration: BoxDecoration(
color: Colors.grey[900],
borderRadius: BorderRadius.circular(10),
),
child: Center(
child: Text(
controller.gameValue.value[index],
style: TextStyle(
fontSize: 50,
fontWeight: FontWeight.bold,
color: Colors.white,
),
),
),
),
));
},
),
)
]),
),
),
);
}
}
📁Main.dart
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:tectaktoe/HomePage.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return GetMaterialApp(
title: 'Game',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
themeMode: ThemeMode.dark,
home: HomePage(),
);
}
}
All Resources
- Github link : MrNitishroy/Tic-Tac-Toe-in-Flutter (github.com)
- Figma Link : Coming soon
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