Cake Match3 (Admob + Android Studio)

Introduction

Cake Match3 is a popular mobile game where players swap colored cakes to create sets of three or more identical cakes in a row, either horizontally, vertically, or diagonally. The game is a great way to pass the time, relax, and have fun. In this tutorial, we will guide you through the process of creating a Cake Match3 game using Android Studio and integrating AdMob for monetization.

Prerequisites

• Android Studio installed on your computer
• Basic knowledge of Java programming
• Familiarity with Android development
• AdMob account set up

Step 1: Creating a New Project in Android Studio

1. Open Android Studio and click on "Start a new Android Studio project" button.
2. Choose "Empty Activity" as the project template and click "Next".
3. Fill in the project details, such as project name, package name, and location. Click "Finish".

Step 2: Adding the Game Logic

1. Create a new Java class called CakeMatch3Game and add the following code:

   public class CakeMatch3Game extends AppCompatActivity {
   private GridView gridView;
   private CakeMatch3GameView gameView;
   private List<Cake> cakes;
   private int score;
   
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_cake_match3);
   
       gridView = findViewById(R.id.grid_view);
       gameView = new CakeMatch3GameView(this);
       gridView.setAdapter(gameView);
       gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
           @Override
           public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
               // Handle game logic here
           }
       });
   }
   }

2. Create a new Java class called CakeMatch3GameView and add the following code:

   public class CakeMatch3GameView extends BaseAdapter {
   private Context context;
   private List<Cake> cakes;
   
   public CakeMatch3GameView(Context context) {
       this.context = context;
       this.cakes = new ArrayList<>();
   }
   
   @Override
   public int getCount() {
       return cakes.size();
   }
   
   @Override
   public Object getItem(int position) {
       return cakes.get(position);
   }
   
   @Override
   public View getView(int position, View convertView, ViewGroup parent) {
       View view = convertView;
       if (view == null) {
           view = LayoutInflater.from(context).inflate(R.layout.cake_item, parent, false);
       }
       Cake cake = (Cake) getItem(position);
       ImageView imageView = view.findViewById(R.id.image_view);
       imageView.setImageResource(cake.getImageResource());
       return view;
   }
   }

3. Create a new Java class called Cake and add the following code:

   public class Cake {
   private int imageResource;
   private boolean isMatched;
   
   public Cake(int imageResource) {
       this.imageResource = imageResource;
       this.isMatched = false;
   }
   
   public int getImageResource() {
       return imageResource;
   }
   
   public void setIsMatched(boolean isMatched) {
       this.isMatched = isMatched;
   }
   
   public boolean isMatched() {
       return isMatched;
   }
   }

   Step 3: Adding the Game Grid

4. Create a new XML file called activity_cake_match3.xml and add the following code:

   
   <?xml version="1.0" encoding="utf-8"?>
   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:orientation="vertical">
   
   <GridView
       android:id="@+id/grid_view"
       android:layout_width="match_parent"
       android:layout_height="0dp"
       android:columnWidth="100dp"
       android:gravity="center"
       android:horizontalSpacing="10dp"
       android:numColumns="4"
       android:stretchMode="columnWidth"
       android:verticalSpacing="10dp" />

2. Create a new XML file called `cake_item.xml` and add the following code:
```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/image_view"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:scaleType="centerCrop" />

</LinearLayout>

Step 4: Integrating AdMob

1. Create a new XML file called admob.xml and add the following code:

   
   <?xml version="1.0" encoding="utf-8"?>
   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:orientation="vertical">
   
   <com.google.android.gms.ads.AdView
       android:id="@+id/ad_view"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_gravity="center_horizontal"
       ads:adSize="BANNER"
       ads:adUnitId="YOUR_AD_UNIT_ID" />

2. Add the AdMob dependency to your `build.gradle` file:
```groovy
dependencies {
    implementation 'com.google.android.gms:play-services-ads:20.5.0'
}

1. Initialize the AdMob SDK in your CakeMatch3Game class:

   @Override
   protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_cake_match3);
   
   // Initialize AdMob
   MobileAds.initialize(this, new OnInitializationCompleteListener() {
       @Override
       public void onInitializationComplete() {
           // AdMob initialization complete
       }
   });
   
   // Load the ad
   AdView adView = findViewById(R.id.ad_view);
   AdRequest adRequest = new AdRequest.Builder().build();
   adView.loadAd(adRequest);
   }

   Step 5: Running the Game

2. Run the game on an emulator or a physical device.
3. The game should display a grid of cakes, and you can swap them to create sets of three or more identical cakes in a row.
4. The game should also display ads, and you can earn rewards by watching them.

That's it! You have now created a Cake Match3 game using Android Studio and integrated AdMob for monetization.