used for https://medium.com/@themukeshsolanki/classic-snake-game-with-jetpack-compose-2b78f4892ca

DPad.kt

@Composable
fun Controller(onDirectionChange: (Int) -> Unit) {
    val buttonSize = Modifier.size(size64dp)
    val currentDirection = remember { mutableStateOf(SnakeDirection.Right) }
    Column(
        horizontalAlignment = Alignment.CenterHorizontally,
        modifier = Modifier.padding(padding24dp)
    ) {
        AppIconButton(icon = Icons.Default.KeyboardArrowUp) {
            if (currentDirection.value != SnakeDirection.Down) {
                onDirectionChange.invoke(SnakeDirection.Up)
                currentDirection.value = SnakeDirection.Up
            }
        }
        Row {
            AppIconButton(icon = Icons.Default.KeyboardArrowLeft) {
                if (currentDirection.value != SnakeDirection.Right) {
                    onDirectionChange.invoke(SnakeDirection.Left)
                    currentDirection.value = SnakeDirection.Left
                }
            }
            Spacer(modifier = buttonSize)
            AppIconButton(icon = Icons.Default.KeyboardArrowRight) {
                if (currentDirection.value != SnakeDirection.Left) {
                    onDirectionChange.invoke(SnakeDirection.Right)
                    currentDirection.value = SnakeDirection.Right
                }
            }
        }
        AppIconButton(icon = Icons.Default.KeyboardArrowDown) {
            if (currentDirection.value != SnakeDirection.Up) {
                onDirectionChange.invoke(SnakeDirection.Down)
                currentDirection.value = SnakeDirection.Down
            }
        }
    }
}