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Vinzenz Schroeter 2025-07-03 17:52:42 +02:00
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1
.gitignore vendored Normal file
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/target

163
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "bitvec"
version = "1.0.1"
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dependencies = [
"funty",
"radium",
"tap",
"wyz",
]
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dependencies = [
"bitvec",
"inherent",
"log",
"once_cell",
"rust-lzma",
"thiserror",
]
[[package]]
name = "servicepoint-idle"
version = "0.1.0"
dependencies = [
"servicepoint",
]
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dependencies = [
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7
Cargo.toml Normal file
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[package]
name = "servicepoint-idle"
version = "0.1.0"
edition = "2024"
[dependencies]
servicepoint = "0.15.1"

27
flake.lock Normal file
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{
"nodes": {
"nixpkgs": {
"locked": {
"lastModified": 1750969886,
"narHash": "sha256-zW/OFnotiz/ndPFdebpo3X0CrbVNf22n4DjN2vxlb58=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "a676066377a2fe7457369dd37c31fd2263b662f4",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-25.05",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}

57
flake.nix Normal file
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{
description = "";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
};
outputs =
{ self, nixpkgs }:
let
lib = nixpkgs.lib;
supported-systems = [
"x86_64-linux"
"aarch64-linux"
"aarch64-darwin"
"x86_64-darwin"
];
forAllSystems =
f:
lib.genAttrs supported-systems (
system:
f rec {
pkgs = nixpkgs.legacyPackages.${system};
inherit system;
}
);
in
{
devShells = forAllSystems (
{ pkgs, system }:
{
default = pkgs.mkShell rec {
packages = with pkgs; [
(pkgs.symlinkJoin {
name = "rust-toolchain";
paths = [
rustc
cargo
rustPlatform.rustcSrc
rustfmt
clippy
cargo-expand
];
})
gdb
xz
pkg-config
];
RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
};
}
);
formatter = forAllSystems ({ pkgs, ... }: pkgs.nixfmt-rfc-style);
};
}

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src/bar.rs Normal file
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use crate::command_queue::PacketQueue;
use crate::{Currency, GenerateCommands, Progressable};
use servicepoint::{Bitmap, BitmapCommand, Grid, Origin, TILE_SIZE, TILE_WIDTH, Tiles};
use std::time::Duration;
#[derive(Debug, Clone)]
pub struct Bar {
progress: f64,
speed: f64,
factor: f64,
origin: Origin<Tiles>,
width_tiles: usize,
}
impl Bar {
pub(crate) fn new(factor: f64, origin: Origin<Tiles>) -> Bar {
Self {
factor,
progress: 0f64,
speed: 0.01f64,
origin,
width_tiles: TILE_WIDTH / 2, // TODO: param
}
}
}
impl Progressable for Bar {
fn progress(&self, delta: Duration) -> (Self, Currency) {
let extra_progress = delta.as_secs_f64() * self.speed;
let progress = self.progress + extra_progress;
let completions = progress.floor();
let progress = progress - completions;
let currency = completions * self.factor;
(Self { progress, ..*self }, currency)
}
}
impl GenerateCommands for Bar {
fn generate_commands(&self, q: &mut impl PacketQueue) {
let mut bitmap = Bitmap::new(self.width_tiles * TILE_SIZE, TILE_SIZE).unwrap();
// border top
let last_row = bitmap.height() - 1;
for x in 0..bitmap.width() {
bitmap.set(x, 0, true);
bitmap.set(x, last_row, true);
}
// border bottom
let last_col = bitmap.width() - 1;
for y in 0..bitmap.height() {
bitmap.set(0, y, true);
bitmap.set(last_col, y, true);
}
// progress fill
let fill_to = (bitmap.width() as f64 * self.progress) as usize;
for y in 0..bitmap.height() {
for x in 0..fill_to {
bitmap.set(x, y, true);
}
}
// to command
q.enqueue_command(BitmapCommand {
bitmap,
origin: Origin::from(&self.origin),
compression: Default::default(),
})
.unwrap();
}
}

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src/command_queue.rs Normal file
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use servicepoint::{Packet, UdpSocketExt};
use std::net::UdpSocket;
pub(crate) trait PacketQueue {
fn enqueue_command<P: TryInto<Packet>>(&mut self, packet: P) -> Result<bool, P::Error>;
}
impl PacketQueue for Vec<Packet> {
fn enqueue_command<P: TryInto<Packet>>(&mut self, packet: P) -> Result<bool, P::Error> {
self.push(packet.try_into()?);
Ok(true)
}
}
impl PacketQueue for UdpSocket {
fn enqueue_command<P: TryInto<Packet>>(&mut self, packet: P) -> Result<bool, P::Error> {
let packet = packet.try_into()?;
Ok(self.send_command(packet).is_some())
}
}

39
src/game_state.rs Normal file
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use crate::bar::Bar;
use crate::command_queue::PacketQueue;
use crate::label::Label;
use crate::{Currency, GenerateCommands, Progressable};
use servicepoint::{Origin, TILE_WIDTH};
use std::time::Duration;
#[derive(Debug, Clone)]
pub struct GameState {
pub(crate) currency: Currency,
pub(crate) first_step: Bar,
}
impl Progressable for GameState {
fn progress(&self, delta: Duration) -> (Self, Currency) {
let (first_step, first_currency) = self.first_step.progress(delta);
let currency = self.currency + first_currency;
(
Self {
currency,
first_step,
},
0f64,
)
}
}
impl GenerateCommands for GameState {
fn generate_commands(&self, queue: &mut impl PacketQueue) {
Label::new(Origin::ZERO, TILE_WIDTH, "Discordia Boot Procedure").generate_commands(queue);
self.first_step.generate_commands(queue);
Label::new(Origin::new(TILE_WIDTH / 2 + 1, 1), TILE_WIDTH / 2 - 1, "Power infrastructure")
.generate_commands(queue);
}
}

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src/label.rs Normal file
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use crate::GenerateCommands;
use crate::command_queue::PacketQueue;
use servicepoint::{CharGrid, CharGridCommand, Origin, Tiles};
pub(crate) struct Label<S: AsRef<str>> {
position: Origin<Tiles>,
text: S,
width_tiles: usize,
}
impl Label<String> {
pub(crate) fn new<S: AsRef<str>>(position: Origin<Tiles>, width_tiles: usize, text: S) -> Self {
// TODO: those should be grapheme clusters
let text = text.as_ref().chars().take(width_tiles).collect::<String>();
Self {
position,
text,
width_tiles,
}
}
}
impl<S: AsRef<str>> GenerateCommands for Label<S> {
fn generate_commands(&self, queue: &mut impl PacketQueue) {
let mut grid = CharGrid::new(self.width_tiles, 1);
grid.set_row_str(0, self.text.as_ref()).unwrap();
queue
.enqueue_command(CharGridCommand {
grid: CharGrid::from(self.text.as_ref()),
origin: self.position,
})
.unwrap();
}
}

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src/main.rs Normal file
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use crate::command_queue::PacketQueue;
use bar::Bar;
use game_state::GameState;
use servicepoint::{ClearCommand, Origin, UdpSocketExt};
use std::net::UdpSocket;
use std::time::{Duration, Instant};
mod bar;
mod command_queue;
mod game_state;
mod label;
type Currency = f64;
trait Progressable: Sized {
#[must_use]
fn progress(&self, delta: Duration) -> (Self, Currency);
}
trait GenerateCommands {
fn generate_commands(&self, queue: &mut impl PacketQueue);
}
fn main() {
let mut state = GameState {
currency: 0f64,
first_step: Bar::new(1f64, Origin::new(0, 1)),
};
let mut connection = UdpSocket::bind_connect("127.0.0.1:2342").unwrap();
let mut last_refresh = Instant::now();
loop {
let current_time = Instant::now();
let delta = current_time - last_refresh;
last_refresh = current_time;
(state, _) = state.progress(delta);
connection.send_command(ClearCommand);
state.generate_commands(&mut connection);
}
}