I have been really enjoying trying out <Mosaic>. I have been slowly introducing it into a bot I am m...

# compose

[David Edwards]

I have been really enjoying trying out Mosaic. I have been slowly introducing it into a bot I am making for a game. Super enjoyable so far. I would encourage anyone making a CLI / Bot to give it a go.

[David Edwards]

I have a MutableStateList for the list of characters and a MutableState containing a LinkedList for the logs.

@Composable
fun BotScreen(host: BotHost) {
    Column {
        val characterList = host.playerStateMap()

        HorizontalRule()

        ListCharacters(list = characterList)

        HorizontalRule()

        ListLogs(state = LogController.state)

        HorizontalRule()
    }
}

[David Edwards]

[Colton Idle]

Way coool! I'm trying to convert a few of my lengthy bash scripts to this!

[Tash]

This is really cool! How was the experience working with Mosaic and getting everything integrated?

[efemoney]

This looks so cool! Will definitely try it out!

[David Edwards]

It was bumpy to begin with.

I spent an embarrassing amount of time not understanding why the plugin wasn't being found. The dependency was com. (in code it was org. ).

Then I had issues with it not updating. It turns out that when the runMosaic scope body is at the end, the whole Mosaic system stops. Which makes sense. You just need to keep it running. Which can probably be done by waiting for user input. My bot doesn't accept command line input yet, so it uses a naughty function to keep it going:

suspend fun MosaicScope.neverStop() = let { while (true) yield() }

fun main() = runMosaic {
    val host = BotHost(this)

    setContent {
        BotScreen(host = host)
    }

    neverStop()
}

[David Edwards]

Another thing, is that when output wraps a line, it affects every other line. So it is important to keep the line length down.

I ended up implementing this:

@Composable
fun PaddedText(text: String, maxLength: Int) {
    Text(text.take(maxLength - 1).padEnd(maxLength))
}

[efemoney]

Nice! @David Edwards. You should consider using awaitCancellation instead of the loop (neverStop)

[David Edwards]

@efemoney TIL: Thanks for the tip. That works better.