GameViewModel.kt

@HiltViewModel
class GameViewModel @Inject constructor() : ViewModel() {
    private val field = Field()

    private val stateFlow = MutableStateFlow(field.getActualField())
    val state : StateFlow<Array<IntArray>> = stateFlow

    init {
        viewModelScope.launch {
            while (!field.isGameEnded) {
                delay(500)
                // The tick method contains all the 
                // operating logic of the game.
                field.tick()
                stateFlow.emit(field.getActualField())
            }
        }
    }

    fun moveRight() {
        viewModelScope.launch {
            field.moveRight()
            stateFlow.emit(field.getActualField())
        }
    }

    fun moveLeft() {
        viewModelScope.launch {
            field.moveLeft()
            stateFlow.emit(field.getActualField())
        }
    }

    fun turn() {
        viewModelScope.launch {
            field.turnPiece()
            stateFlow.emit(field.getActualField())
        }
    }
}