README.md

@@ -7,12 +7,13 @@ i spent a while looking for a gimmick-free tetris implementation because i'm hoo
 # controls
 |   |   |
 |---|---|
-| **W** | Rotate piece |
+| **R** | Rotate piece |
-| **A**/**D** | Move left/right |
+| **←**/**→** | Move left/right |
-| **S**/**Space** | Move down |
+| **S**/**↓** | Move down |
 | **Tab** | Swap with storage |
 | **P** | Pause |
 | **Escape** | Quit |
+| **M** | Mute SFX |
 
 # to do
 - balanced pseudorandom piece generation

tetris.c

@@ -86,6 +86,7 @@ static bool pieceActive = false;
 static bool detection = false;
 static bool lineToDelete = false;
 static bool storageInUse = false;
+static bool audioMuted = false;
 
 // Statistics
 static int level = 1;
@@ -102,6 +103,9 @@ static int fadeLineCounter = 0;
 // Based on level
 static int gravitySpeed = 30;
 
+// Sound
+static Sound beep;
+
 //------------------------------------------------------------------------------------
 // Module Functions Declaration (local)
 //------------------------------------------------------------------------------------
@@ -120,7 +124,6 @@ static bool ResolveTurnMovement();
 static void CheckDetection(bool *detection);
 static void CheckCompletion(bool *lineToDelete);
 static int DeleteCompleteLines();
-
 //------------------------------------------------------------------------------------
 // Program main entry point
 //------------------------------------------------------------------------------------
@@ -129,6 +132,7 @@ int main(void)
 	// Initialization (Note windowTitle is unused on Android)
 	//---------------------------------------------------------
 	InitWindow(screenWidth, screenHeight, "just plain tetris");
+	InitAudioDevice();
 
 	InitGame();
 
@@ -152,6 +156,7 @@ int main(void)
 	UnloadGame();         // Unload loaded data (textures, sounds, models...)
 
 	CloseWindow();        // Close window and OpenGL context
+	CloseAudioDevice();
 	//--------------------------------------------------------------------------------------
 
 	return 0;
@@ -193,6 +198,9 @@ void InitGame(void)
 	fadeLineCounter = 0;
 	gravitySpeed = 30;
 
+	// beep
+	beep = LoadSound("beep.wav");
+
 	// Initialize grid matrices
 	for (int i = 0; i < GRID_HORIZONTAL_SIZE; i++)
 	{
@@ -226,6 +234,21 @@ void UpdateGame(void)
 	{
 		if (IsKeyPressed('P')) pause = !pause;
 
+		// Mute audio toggle
+		if (IsKeyPressed('M'))
+		{
+			if (!audioMuted)
+			{
+				PauseSound(beep);
+				audioMuted = true;
+			}
+			else
+			{
+				ResumeSound(beep);
+				audioMuted = false;
+			}
+		}
+
 		if (!pause)
 		{
 			if (!lineToDelete)
@@ -249,11 +272,11 @@ void UpdateGame(void)
 					turnMovementCounter++;
 
 					// We make sure to move if we've pressed the key this frame
-					if (IsKeyPressed(KEY_A) || IsKeyPressed(KEY_D)) lateralMovementCounter = LATERAL_SPEED;
+					if (IsKeyPressed(KEY_LEFT) || IsKeyPressed(KEY_RIGHT)) lateralMovementCounter = LATERAL_SPEED;
-					if (IsKeyPressed(KEY_W)) turnMovementCounter = TURNING_SPEED;
+					if (IsKeyPressed(KEY_R)) turnMovementCounter = TURNING_SPEED;
 
 					// Fall down
-					if ((IsKeyDown(KEY_S) || IsKeyDown(KEY_SPACE)) && (fastFallMovementCounter >= FAST_FALL_AWAIT_COUNTER))
+					if ((IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN)) && (fastFallMovementCounter >= FAST_FALL_AWAIT_COUNTER))
 					{
 						// We make sure the piece is going to fall this frame
 						gravityMovementCounter += gravitySpeed;
@@ -317,6 +340,21 @@ void UpdateGame(void)
 							pieceActive = false;
 							storageInUse = true;
 						} else {
+							// Check if the stored piece can fit in the old piece's position
+							bool canFit = true;
+							for (int i = 0; i < 4; i++){
+								for (int j = 0; j < 4; j++){
+									if (piecePositionX + i >= GRID_HORIZONTAL_SIZE || piecePositionY + j >= GRID_VERTICAL_SIZE || grid[piecePositionX + i][piecePositionY + j].status == FULL){
+										canFit = false;
+										break;
+									}
+								}
+								if (!canFit){
+									break;
+								}
+							}
+
+							if (canFit){
 								// Swap current piece with stored piece
 								for (int i = 0; i < 4; i++){
 									for (int j = 0; j < 4; j++){
@@ -326,14 +364,28 @@ void UpdateGame(void)
 										storage[i][j] = tempPiece[i][j];
 									}
 								}
-							piecePositionX = (int)((GRID_HORIZONTAL_SIZE - 4)/2);
+
-							piecePositionY = 0;
+								int oldPiecePositionX = piecePositionX;
+								int oldPiecePositionY = piecePositionY;
+
+								piecePositionX = oldPiecePositionX;
+								piecePositionY = oldPiecePositionY;
+
+								for (int i = oldPiecePositionX; i < oldPiecePositionX + 4; i++){
+									for (int j = oldPiecePositionY; j < oldPiecePositionY + 4; j++){
+										if (grid[i][j].status == MOVING){
+											grid[i][j].status = EMPTY; // Derender the old piece
+										}
+									}
+								}
+
 								for (int i = piecePositionX; i < piecePositionX + 4; i++){
-								for (int j = 0; j < 4; j++){
+									for (int j = piecePositionY; j < piecePositionY + 4; j++){
-									if (piece[i - (int)piecePositionX][j].status == MOVING){
+										if (piece[i - oldPiecePositionX][j - oldPiecePositionY].status == MOVING){
 											grid[i][j].status = MOVING;
 										}
-									grid[i][j].color = piece[i - (int)piecePositionX][j].color;
+										grid[i][j].color = piece[i - oldPiecePositionX][j - oldPiecePositionY].color;
+									}
 								}
 							}
 						}
@@ -522,6 +574,7 @@ void DrawGame(void)
 void UnloadGame(void)
 {
 	// TODO: Unload all dynamic loaded data (textures, sounds, models...)
+	UnloadSound(beep);
 }
 
 // Update and Draw (one frame)
@@ -696,7 +749,7 @@ static bool ResolveLateralMovement()
 	bool collision = false;
 
 	// Piece movement
-	if (IsKeyDown(KEY_A) || IsGamepadButtonPressed(0, GAMEPAD_BUTTON_LEFT_FACE_LEFT))        // Move left
+	if (IsKeyDown(KEY_LEFT) || IsGamepadButtonPressed(0, GAMEPAD_BUTTON_LEFT_FACE_LEFT))        // Move left
 	{
 		// Check if is possible to move to left
 		for (int j = GRID_VERTICAL_SIZE - 2; j >= 0; j--)
@@ -731,7 +784,7 @@ static bool ResolveLateralMovement()
 			piecePositionX--;
 		}
 	}
-	else if (IsKeyDown(KEY_D) || IsGamepadButtonPressed(0, GAMEPAD_BUTTON_LEFT_FACE_RIGHT))  // Move right
+	else if (IsKeyDown(KEY_RIGHT) || IsGamepadButtonPressed(0, GAMEPAD_BUTTON_LEFT_FACE_RIGHT))  // Move right
 	{
 		// Check if is possible to move to right
 		for (int j = GRID_VERTICAL_SIZE - 2; j >= 0; j--)
@@ -778,8 +831,11 @@ static bool ResolveLateralMovement()
 static bool ResolveTurnMovement()
 {
 	// Input for turning the piece
-	if (IsKeyDown(KEY_W) || IsGamepadButtonPressed(0, GAMEPAD_BUTTON_RIGHT_FACE_LEFT))
+	if (IsKeyDown(KEY_R) || IsGamepadButtonPressed(0, GAMEPAD_BUTTON_RIGHT_FACE_LEFT))
 	{
+		// play beep.wav
+		if (!audioMuted) PlaySound(beep);
+
 		Cell aux;
 		bool checker = false;