Add title screen with falling tetrominos and fix game resume functionality

app/src/main/java/com/mintris/MainActivity.kt

@@ -15,6 +15,7 @@ import com.mintris.databinding.ActivityMainBinding
 import com.mintris.game.GameHaptics
 import com.mintris.game.GameView
 import com.mintris.game.NextPieceView
+import com.mintris.game.TitleScreen
 import android.view.HapticFeedbackConstants
 import com.mintris.model.GameBoard
 import com.mintris.audio.GameMusic
@@ -27,6 +28,7 @@ class MainActivity : AppCompatActivity() {
     private lateinit var gameHaptics: GameHaptics
     private lateinit var gameBoard: GameBoard
     private lateinit var gameMusic: GameMusic
+    private lateinit var titleScreen: TitleScreen
     
     // Game state
     private var isSoundEnabled = true
@@ -43,12 +45,36 @@ class MainActivity : AppCompatActivity() {
         gameBoard = GameBoard()
         gameHaptics = GameHaptics(this)
         gameView = binding.gameView
+        titleScreen = binding.titleScreen
         gameMusic = GameMusic(this)
         
         // Set up game view
         gameView.setGameBoard(gameBoard)
         gameView.setHaptics(gameHaptics)
         
+        // Set up title screen
+        titleScreen.onStartGame = {
+            titleScreen.visibility = View.GONE
+            gameView.visibility = View.VISIBLE
+            binding.gameControlsContainer.visibility = View.VISIBLE
+            startGame()
+        }
+        
+        // Initially hide the game view and show title screen
+        gameView.visibility = View.GONE
+        binding.gameControlsContainer.visibility = View.GONE
+        titleScreen.visibility = View.VISIBLE
+        
+        // Set up pause button to show settings menu
+        binding.pauseButton.setOnClickListener {
+            gameHaptics.performHapticFeedback(it, HapticFeedbackConstants.VIRTUAL_KEY)
+            gameView.pause()
+            gameMusic.pause()
+            showPauseMenu()
+            binding.pauseStartButton.visibility = View.GONE
+            binding.resumeButton.visibility = View.VISIBLE
+        }
+        
         // Set up next piece preview
         binding.nextPieceView.setGameView(gameView)
         gameBoard.onNextPieceChanged = {
@@ -62,9 +88,6 @@ class MainActivity : AppCompatActivity() {
             updateMusicToggleUI()
         }
         
-        // Start game immediately
-        startGame()
-        
         // Set up callbacks
         gameView.onGameStateChanged = { score, level, lines ->
             updateUI(score, level, lines)
@@ -99,7 +122,7 @@ class MainActivity : AppCompatActivity() {
             gameHaptics.performHapticFeedback(it, HapticFeedbackConstants.VIRTUAL_KEY)
             hideGameOver()
             gameView.reset()
-            gameView.start()
+            startGame()
         }
         
         binding.resumeButton.setOnClickListener {
@@ -118,14 +141,14 @@ class MainActivity : AppCompatActivity() {
             gameHaptics.performHapticFeedback(it, HapticFeedbackConstants.VIRTUAL_KEY)
             hidePauseMenu()
             gameView.reset()
-            gameView.start()
+            startGame()
         }
 
         binding.pauseRestartButton.setOnClickListener {
             gameHaptics.performHapticFeedback(it, HapticFeedbackConstants.VIRTUAL_KEY)
             hidePauseMenu()
             gameView.reset()
-            gameView.start()
+            startGame()
         }
 
         binding.pauseLevelUpButton.setOnClickListener {
@@ -250,50 +273,27 @@ class MainActivity : AppCompatActivity() {
         showPauseMenu()
     }
     
-    private fun pauseGame() {
-        gameView.pause()
-        gameMusic.pause()
-    }
-    
     private fun resumeGame() {
         gameView.resume()
         if (isMusicEnabled) {
-            gameMusic.start()
+            gameMusic.resume()
         }
+        // Force a redraw to ensure pieces aren't frozen
+        gameView.invalidate()
     }
     
     override fun onPause() {
         super.onPause()
-        if (!gameView.isGameOver()) {
-            pauseGame()
-            showPauseMenu()
-            binding.pauseStartButton.visibility = View.GONE
-            binding.resumeButton.visibility = View.VISIBLE
-        }
-    }
-    
-    @Deprecated("Deprecated in Java")
-    override fun onBackPressed() {
-        if (binding.gameOverContainer.visibility == View.VISIBLE) {
-            hideGameOver()
-            gameView.reset()
-            return
-        }
-        
-        if (binding.pauseContainer.visibility == View.GONE) {
+        if (gameView.visibility == View.VISIBLE) {
             gameView.pause()
-            showPauseMenu()
-            binding.pauseStartButton.visibility = View.GONE
-            binding.resumeButton.visibility = View.VISIBLE
-        } else {
-            hidePauseMenu()
-            resumeGame()
+            gameMusic.pause()
         }
     }
     
     override fun onResume() {
         super.onResume()
-        if (!gameView.isGameOver()) {
+        // If we're on the title screen, don't auto-resume the game
+        if (titleScreen.visibility == View.GONE && gameView.visibility == View.VISIBLE && binding.gameOverContainer.visibility == View.GONE && binding.pauseContainer.visibility == View.GONE) {
             resumeGame()
         }
     }
@@ -302,4 +302,16 @@ class MainActivity : AppCompatActivity() {
         super.onDestroy()
         gameMusic.release()
     }
+    
+    /**
+     * Show title screen (for game restart)
+     */
+    private fun showTitleScreen() {
+        gameView.reset()
+        gameView.visibility = View.GONE
+        binding.gameControlsContainer.visibility = View.GONE
+        binding.gameOverContainer.visibility = View.GONE
+        binding.pauseContainer.visibility = View.GONE
+        titleScreen.visibility = View.VISIBLE
+    }
 } 

app/src/main/java/com/mintris/audio/GameMusic.kt

@@ -59,6 +59,17 @@ class GameMusic(private val context: Context) {
         }
     }
     
+    fun resume() {
+        try {
+            Log.d("GameMusic", "Resuming music playback")
+            if (isEnabled && mediaPlayer?.isPlaying != true) {
+                mediaPlayer?.start()
+            }
+        } catch (e: Exception) {
+            Log.e("GameMusic", "Error resuming music", e)
+        }
+    }
+    
     fun stop() {
         try {
             Log.d("GameMusic", "Stopping music playback")

app/src/main/java/com/mintris/game/GameView.kt

@@ -664,9 +664,15 @@ class GameView @JvmOverloads constructor(
     fun resume() {
         if (!isRunning) {
             isRunning = true
-            handler.post(gameLoopRunnable)
         }
         isPaused = false
+        
+        // Restart the game loop immediately
+        handler.removeCallbacks(gameLoopRunnable)
+        handler.post(gameLoopRunnable)
+        
+        // Force an update to ensure pieces move immediately
+        update()
         invalidate()
     }
 } 

app/src/main/java/com/mintris/game/TitleScreen.kt

@@ -0,0 +1,259 @@
+package com.mintris.game
+
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.Color
+import android.graphics.Paint
+import android.graphics.Typeface
+import android.util.AttributeSet
+import android.view.MotionEvent
+import android.view.View
+import java.util.Random
+import android.util.Log
+
+class TitleScreen @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0
+) : View(context, attrs, defStyleAttr) {
+
+    private val paint = Paint()
+    private val glowPaint = Paint()
+    private val titlePaint = Paint()
+    private val promptPaint = Paint()
+    private val cellSize = 30f
+    private val random = Random()
+    private var width = 0
+    private var height = 0
+    private val tetrominosToAdd = mutableListOf<Tetromino>()
+    
+    // Callback for when the user touches the screen
+    var onStartGame: (() -> Unit)? = null
+    
+    // Define tetromino shapes (I, O, T, S, Z, J, L)
+    private val tetrominoShapes = arrayOf(
+        // I
+        arrayOf(
+            intArrayOf(0, 0, 0, 0),
+            intArrayOf(1, 1, 1, 1),
+            intArrayOf(0, 0, 0, 0),
+            intArrayOf(0, 0, 0, 0)
+        ),
+        // O
+        arrayOf(
+            intArrayOf(1, 1),
+            intArrayOf(1, 1)
+        ),
+        // T
+        arrayOf(
+            intArrayOf(0, 1, 0),
+            intArrayOf(1, 1, 1),
+            intArrayOf(0, 0, 0)
+        ),
+        // S
+        arrayOf(
+            intArrayOf(0, 1, 1),
+            intArrayOf(1, 1, 0),
+            intArrayOf(0, 0, 0)
+        ),
+        // Z
+        arrayOf(
+            intArrayOf(1, 1, 0),
+            intArrayOf(0, 1, 1),
+            intArrayOf(0, 0, 0)
+        ),
+        // J
+        arrayOf(
+            intArrayOf(1, 0, 0),
+            intArrayOf(1, 1, 1),
+            intArrayOf(0, 0, 0)
+        ),
+        // L
+        arrayOf(
+            intArrayOf(0, 0, 1),
+            intArrayOf(1, 1, 1),
+            intArrayOf(0, 0, 0)
+        )
+    )
+    
+    // Tetromino class to represent falling pieces
+    private class Tetromino(
+        var x: Float,
+        var y: Float,
+        val shape: Array<IntArray>,
+        val speed: Float,
+        val scale: Float,
+        val rotation: Int = 0
+    )
+    
+    private val tetrominos = mutableListOf<Tetromino>()
+    
+    init {
+        // Title text settings
+        titlePaint.apply {
+            color = Color.WHITE
+            textSize = 120f
+            textAlign = Paint.Align.CENTER
+            typeface = Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD)
+            isAntiAlias = true
+        }
+        
+        // "Touch to start" text settings
+        promptPaint.apply {
+            color = Color.WHITE
+            textSize = 40f
+            textAlign = Paint.Align.CENTER
+            typeface = Typeface.create(Typeface.SANS_SERIF, Typeface.NORMAL)
+            isAntiAlias = true
+            alpha = 180
+        }
+        
+        // General paint settings for tetrominos (white)
+        paint.apply {
+            color = Color.WHITE
+            style = Paint.Style.FILL
+            isAntiAlias = true
+        }
+        
+        // Glow paint settings for tetrominos
+        glowPaint.apply {
+            color = Color.WHITE
+            style = Paint.Style.FILL
+            isAntiAlias = true
+            alpha = 60
+        }
+    }
+    
+    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
+        super.onSizeChanged(w, h, oldw, oldh)
+        width = w
+        height = h
+        
+        // Clear existing tetrominos
+        tetrominos.clear()
+        
+        // Initialize some tetrominos
+        repeat(20) {
+            val tetromino = createRandomTetromino()
+            tetrominos.add(tetromino)
+        }
+    }
+    
+    private fun createRandomTetromino(): Tetromino {
+        val x = random.nextFloat() * (width - 150) + 50 // Keep away from edges
+        val y = -cellSize * 4 - (random.nextFloat() * height / 2)
+        val shapeIndex = random.nextInt(tetrominoShapes.size)
+        val shape = tetrominoShapes[shapeIndex]
+        val speed = 1f + random.nextFloat() * 2f
+        val scale = 0.8f + random.nextFloat() * 0.4f
+        val rotation = random.nextInt(4) * 90
+        
+        return Tetromino(x, y, shape, speed, scale, rotation)
+    }
+    
+    override fun onDraw(canvas: Canvas) {
+        try {
+            super.onDraw(canvas)
+            
+            // Draw background
+            canvas.drawColor(Color.BLACK)
+            
+            // Add any pending tetrominos
+            tetrominos.addAll(tetrominosToAdd)
+            tetrominosToAdd.clear()
+            
+            // Update and draw falling tetrominos
+            val tetrominosToRemove = mutableListOf<Tetromino>()
+            
+            for (tetromino in tetrominos) {
+                tetromino.y += tetromino.speed
+                
+                // Remove tetrominos that have fallen off the screen
+                if (tetromino.y > height) {
+                    tetrominosToRemove.add(tetromino)
+                    tetrominosToAdd.add(createRandomTetromino())
+                } else {
+                    try {
+                        // Save canvas state before rotation
+                        canvas.save()
+                        
+                        // Translate to the tetromino's position
+                        canvas.translate(tetromino.x, tetromino.y)
+                        
+                        // Scale according to the tetromino's scale factor
+                        canvas.scale(tetromino.scale, tetromino.scale)
+                        
+                        // Rotate around the center of the tetromino
+                        val centerX = tetromino.shape.size * cellSize / 2
+                        val centerY = tetromino.shape.size * cellSize / 2
+                        canvas.rotate(tetromino.rotation.toFloat(), centerX, centerY)
+                        
+                        // Draw the tetromino
+                        for (row in tetromino.shape.indices) {
+                            for (col in 0 until tetromino.shape[row].size) {
+                                if (tetromino.shape[row][col] == 1) {
+                                    // Draw larger glow effect
+                                    glowPaint.alpha = 30
+                                    canvas.drawRect(
+                                        col * cellSize - 8,
+                                        row * cellSize - 8,
+                                        (col + 1) * cellSize + 8,
+                                        (row + 1) * cellSize + 8,
+                                        glowPaint
+                                    )
+                                    
+                                    // Draw medium glow
+                                    glowPaint.alpha = 60
+                                    canvas.drawRect(
+                                        col * cellSize - 4,
+                                        row * cellSize - 4,
+                                        (col + 1) * cellSize + 4,
+                                        (row + 1) * cellSize + 4,
+                                        glowPaint
+                                    )
+                                    
+                                    // Draw main block
+                                    canvas.drawRect(
+                                        col * cellSize,
+                                        row * cellSize,
+                                        (col + 1) * cellSize,
+                                        (row + 1) * cellSize,
+                                        paint
+                                    )
+                                }
+                            }
+                        }
+                        
+                        // Restore canvas state
+                        canvas.restore()
+                    } catch (e: Exception) {
+                        Log.e("TitleScreen", "Error drawing tetromino", e)
+                    }
+                }
+            }
+            
+            // Remove tetrominos that fell off the screen
+            tetrominos.removeAll(tetrominosToRemove)
+            
+            // Draw title
+            val titleY = height * 0.4f
+            canvas.drawText("mintris", width / 2f, titleY, titlePaint)
+            
+            // Draw "touch to start" prompt
+            canvas.drawText("touch to start", width / 2f, height * 0.6f, promptPaint)
+            
+            // Request another frame
+            invalidate()
+        } catch (e: Exception) {
+            Log.e("TitleScreen", "Error in onDraw", e)
+        }
+    }
+    
+    override fun onTouchEvent(event: MotionEvent): Boolean {
+        if (event.action == MotionEvent.ACTION_DOWN) {
+            onStartGame?.invoke()
+            return true
+        }
+        return super.onTouchEvent(event)
+    }
+} 

app/src/main/res/drawable/ic_pause.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="@android:color/white">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M6,19h4L10,5L6,5v14zM14,5v14h4L18,5h-4z"/>
+</vector> 

app/src/main/res/layout/activity_main.xml

@@ -31,54 +31,81 @@
             android:layout_height="match_parent"
             android:background="@drawable/glow_border" />
     </FrameLayout>
+    
+    <!-- Title Screen -->
+    <com.mintris.game.TitleScreen
+        android:id="@+id/titleScreen"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
 
     <!-- HUD Container - Score, Level, Lines -->
     <LinearLayout
-        android:id="@+id/hudContainer"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_margin="16dp"
-        android:orientation="vertical"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
-
-        <TextView
-            android:id="@+id/scoreText"
+        android:id="@+id/gameControlsContainer"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+        
+        <LinearLayout
+            android:id="@+id/hudContainer"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:textColor="@color/white"
-            android:textSize="24sp"
-            android:fontFamily="sans-serif-light"
-            tools:text="Score: 0" />
+            android:layout_margin="16dp"
+            android:layout_gravity="end"
+            android:orientation="vertical">
 
-        <TextView
-            android:id="@+id/currentLevelText"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:textColor="@color/white"
-            android:textSize="24sp"
-            android:fontFamily="sans-serif-light"
-            tools:text="Level: 1" />
+            <TextView
+                android:id="@+id/scoreText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/white"
+                android:textSize="24sp"
+                android:fontFamily="sans-serif-light"
+                tools:text="Score: 0" />
 
-        <TextView
-            android:id="@+id/linesText"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:textColor="@color/white"
-            android:textSize="24sp"
-            android:fontFamily="sans-serif-light"
-            tools:text="Lines: 0" />
+            <TextView
+                android:id="@+id/currentLevelText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/white"
+                android:textSize="24sp"
+                android:fontFamily="sans-serif-light"
+                tools:text="Level: 1" />
+
+            <TextView
+                android:id="@+id/linesText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/white"
+                android:textSize="24sp"
+                android:fontFamily="sans-serif-light"
+                tools:text="Lines: 0" />
+        </LinearLayout>
+
+        <!-- Next Piece Preview -->
+        <com.mintris.game.NextPieceView
+            android:id="@+id/nextPieceView"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="16dp"
+            android:layout_gravity="end" />
+            
+        <!-- Settings button -->
+        <ImageButton
+            android:id="@+id/pauseButton"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:layout_gravity="start"
+            android:layout_margin="16dp"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/settings"
+            android:padding="12dp"
+            android:src="@drawable/ic_pause" />
     </LinearLayout>
 
-    <!-- Next Piece Preview -->
-    <com.mintris.game.NextPieceView
-        android:id="@+id/nextPieceView"
-        android:layout_width="80dp"
-        android:layout_height="80dp"
-        android:layout_margin="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/hudContainer" />
-
     <!-- Game Over overlay -->
     <LinearLayout
         android:id="@+id/gameOverContainer"