randrews

Plan: Scroll Overlay Feature

Context

Scripts currently have two ways to give text to the player: log() (status messages appended to the log panel) and say() (a short speech bubble above the object, auto-expires after 3 s). Neither is suitable for longer messages or interactive menus. The new scroll(lines[]) action opens a full-screen overlay with scrollable text and optional menu choices. Choosing an option sends a named message back to the object that opened the scroll (via the existing Action::Send / run_send pipeline), letting scripts branch on player decisions.

---

Step 1 — Core: ScrollLine + Action::Scroll (kiln-core/src/action.rs)

randrews

Plan: Scroll Overlay Feature

Context

Scripts currently have two ways to give text to the player: log() (status messages appended to the log panel) and say() (a short speech bubble above the object, auto-expires after 3 s). Neither is suitable for longer messages or interactive menus. The new scroll(lines[]) action opens a full-screen overlay with scrollable text and optional menu choices. Choosing an option sends a named message back to the object that opened the scroll (via the existing Action::Send / run_send pipeline), letting scripts branch on player decisions.

---

Step 1 — Core: ScrollLine + Action::Scroll (kiln-core/src/action.rs)

randrews

use std::collections::VecDeque;

#[derive(Copy, Clone, Debug, PartialEq)]
#[rustfmt::skip]
enum Alphabet {
    L, U, P,
}

enum ZChar {
    Literal(char),

randrews

#![no_std]
#![no_main]

use defmt::info;
use embassy_executor::Spawner;
use embassy_stm32::gpio::{AfType, Flex, OutputType, Speed};
use embassy_stm32::ltdc::{B7Pin, ClkPin, DePin, G7Pin, HsyncPin, Ltdc, LtdcConfiguration, LtdcLayer, LtdcLayerConfig, PixelFormat, PolarityActive, PolarityEdge, R7Pin, VsyncPin};
use embassy_stm32::pac::LTDC;
use embassy_stm32::peripherals::LTDC;
use embassy_stm32::rcc;

randrews

#![no_std]
#![no_main]

use defmt::info;
use embassy_executor::Spawner;
use embassy_stm32::gpio::{AfType, Flex, OutputType, Speed};
use embassy_stm32::ltdc::{B7Pin, ClkPin, DePin, G7Pin, HsyncPin, Ltdc, LtdcConfiguration, LtdcLayer, LtdcLayerConfig, PixelFormat, PolarityActive, PolarityEdge, R7Pin, VsyncPin};
use embassy_stm32::peripherals::LTDC;
use embassy_stm32::rcc;
use embassy_stm32::rcc::Pll;

randrews

fn main() {
    let input = image::load_from_memory(include_bytes!("atkinson.png")).unwrap().into_luma16();
    let (width, height) = (input.width(), input.height());
    let mut output = image::RgbImage::new(width, height);
    let mut error_rows = vec![vec![0.0; width as usize]; 3];

    let palette: Vec<image::Rgb<u8>> = vec![
        [0xe4, 0x2b, 0x19].into(),
        [0, 0x40, 0x62].into(),
        [0x82, 0xa7, 0xaf].into(),

randrews

[package]
name = "dither"
version = "0.1.0"
edition = "2024"

[dependencies]
image = "0.25.6"

randrews

[package]
name = "carillon"
version = "0.1.0"
edition = "2024"

[dependencies]
midi_file = "0.0.6"

randrews

use std::collections::VecDeque;
use std::env;
use std::fmt::{Display, Formatter};
use std::ops::{Index, IndexMut};
use rand::RngCore;
use crate::Dir::*;

fn main() {
    let args: Vec<_> = env::args().collect();
    let dimension = if args.len() < 2 {

randrews

use std::env;
use std::fmt::{Display, Formatter};
use std::ops::{Index, IndexMut};
use rand::RngCore; // cargo add rand
use crate::Dir::*;

fn main() {
    let args: Vec<_> = env::args().collect();
    let dimension = if args.len() < 2 {
        println!("No dimension, defaulting to 20");