Jetpack Compose - Earthquake Effect_9

earthquake_9.kt

@Composable
fun EarthquakeBox(
    onEarthquakeFinished: () -> Unit = {},
    content: @Composable IEarthquakeScope.() -> Unit
) {
    val coroutineScope = rememberCoroutineScope()

    val state = remember { EarthquakeState() }
    val scope = remember { EarthquakeScope(state = state) }
    val mover = remember { EarthquakeMover() }
    val controller = remember {
        EarthquakeController(
            scope = coroutineScope,
            mover = mover,
            onEarthquakeFinished = {
                state.isShaking = false
                onEarthquakeFinished()
            }
        )
    }

    LaunchedEffect(state.isShaking) {
        if (state.isShaking) {
            controller.startShaking(
                earthquakeDuration = state.earthquakeDuration,
                shakeDuration = 1000L / state.shakesPerSecond,
                shakeForce = state.shakeForce
            )
        } else {
            controller.stopShaking()
        }
    }

    Box(
        modifier = Modifier
            .alpha(mover.alpha.value)
            .offset(mover.x.value.dp, mover.y.value.dp)
            .rotate(mover.rotation.value)
            .padding(state.shakeForce.dp)
    ) {
        scope.content()
    }
}