From 37d834d80b6951b77ab6e676aae0118b413c1c64 Mon Sep 17 00:00:00 2001
From: Avii <git@avii.nl>
Date: Thu, 12 Feb 2026 22:59:27 +0100
Subject: [PATCH] mouse stuff

---
 Cargo.lock                              |  11 +-
 scripts/main.luau => apps/main/main.lua |  30 +--
 g13-os/Cargo.toml                       |  12 +-
 g13-os/src/main.rs                      |  21 ++-
 g13-os/src/mouse.rs                     |  92 ++++++++++
 g13-os/src/os.rs                        | 231 ++++++++++++++++++++++++
 6 files changed, 357 insertions(+), 40 deletions(-)
 rename scripts/main.luau => apps/main/main.lua (58%)
 create mode 100644 g13-os/src/mouse.rs
 create mode 100644 g13-os/src/os.rs

diff --git a/Cargo.lock b/Cargo.lock
index 7be8306..d0f1234 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2787,6 +2787,7 @@ dependencies = [
  "embedded-graphics",
  "g13-driver",
  "mlua",
+ "time",
 ]
 
 [[package]]
@@ -3448,15 +3449,6 @@ dependencies = [
  "imgref",
 ]
 
-[[package]]
-name = "luau0-src"
-version = "0.18.2+luau708"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed3214ab526e7e7b76c3f324a965d363db94a99ae67f65e67ec6fc499eb5e6d"
-dependencies = [
- "cc",
-]
-
 [[package]]
 name = "mach2"
 version = "0.4.3"
@@ -3587,7 +3579,6 @@ dependencies = [
  "cc",
  "cfg-if",
  "libc",
- "luau0-src",
  "pkg-config",
 ]
 
diff --git a/scripts/main.luau b/apps/main/main.lua
similarity index 58%
rename from scripts/main.luau
rename to apps/main/main.lua
index cec1b65..3a35332 100644
--- a/scripts/main.luau
+++ b/apps/main/main.lua
@@ -1,5 +1,5 @@
 name = "DVD"
-authors = {"AviiNL"}
+authors = { "AviiNL" }
 description = "Bouncing 'dvd' Logo"
 
 local width = g13.display_width
@@ -19,7 +19,7 @@ function setup()
     joy.deadzone = 40
 end
 
-function update(delta: number)
+function update(delta)
     x = x + speed * delta * joy.x * 1.2
     y = y + speed * delta * joy.y
 
@@ -29,26 +29,26 @@ function update(delta: number)
 
     g13.clear()
 
-    g13.set_color(color_x/2, color_y/2, color_z/2)
+    g13.set_color(color_x / 2, color_y / 2, color_z / 2)
 
     g13.text("Hello World!", 1, 1, true, 0, 0, 1)
 
-    for sy = -size,size do
-        for sx = -size,size do
+    for sy = -size, size do
+        for sx = -size, size do
             g13.set_pixel(x + sx, y + sy, true)
         end
     end
 end
 
 function dump(o)
-   if type(o) == 'table' then
-      local s = '{ '
-      for k,v in pairs(o) do
-         if type(k) ~= 'number' then k = '"'..k..'"' end
-         s = s .. '['..k..'] = ' .. dump(v) .. ','
-      end
-      return s .. '} '
-   else
-      return tostring(o)
-   end
+    if type(o) == 'table' then
+        local s = '{ '
+        for k, v in pairs(o) do
+            if type(k) ~= 'number' then k = '"' .. k .. '"' end
+            s = s .. '[' .. k .. '] = ' .. dump(v) .. ','
+        end
+        return s .. '} '
+    else
+        return tostring(o)
+    end
 end
diff --git a/g13-os/Cargo.toml b/g13-os/Cargo.toml
index f120b1a..f8de538 100644
--- a/g13-os/Cargo.toml
+++ b/g13-os/Cargo.toml
@@ -4,12 +4,8 @@ version.workspace = true
 edition.workspace = true
 
 [dependencies]
-g13-driver.workspace = true
-embedded-graphics = "0.8"
-mlua = { version = "0.11.6", features = [
-    "luau-jit",
-    "async",
-    "macros",
-    "serde",
-] }
 ctrlc = "3.5"
+embedded-graphics = "0.8"
+g13-driver.workspace = true
+mlua = { version = "0.11.6", features = ["lua54", "async", "macros", "serde"] }
+time = { version = "0.3.47", features = ["formatting", "macros"] }
diff --git a/g13-os/src/main.rs b/g13-os/src/main.rs
index fc18955..a686aa9 100644
--- a/g13-os/src/main.rs
+++ b/g13-os/src/main.rs
@@ -1,3 +1,6 @@
+pub mod mouse;
+mod os;
+
 use g13_driver::{G13, G13_LCD_COLUMNS, G13_LCD_ROWS};
 use mlua::{Error, ExternalResult, Lua};
 use std::{
@@ -10,14 +13,18 @@ use std::{
     time::{Duration, Instant},
 };
 
+use crate::os::G13Os;
+
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let running = Arc::new(AtomicBool::new(true));
 
     let _running = running.clone();
-    ctrlc::set_handler(move || _running.store(false, Ordering::SeqCst))
-        .expect("Error setting Ctrl-C handler");
 
-    let g13 = G13::new()?;
+    let os = G13Os::new();
+
+    os.run();
+
+    /*
     let lua = Lua::new();
     let globals = lua.globals();
     let g13_table = lua.create_table()?;
@@ -172,11 +179,11 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     joy.set("deadzone", 40)?;
     globals.set("joy", joy)?;
 
-    // load all files from dir `./scripts` for now, user configurable later or ~/.config/g13-os/*.<lua[u]>
+    // load all files from dir `./scripts` for now, user configurable later or ~/.config/g13-os/\*.<lua>
     // for now, just main.luau
-    let main = fs::read_to_string("./scripts/main.luau")?;
+    let main = fs::read_to_string("./scripts/main.lua")?;
 
-    lua.load(main).set_name("main.luau").exec()?;
+    lua.load(main).set_name("main.lua").exec()?;
 
     if lua.load("setup ~= nil").eval()? {
         lua.load("setup()").exec()?;
@@ -239,6 +246,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     }
 
     running.store(false, Ordering::SeqCst);
-
+    */
     Ok(())
 }
diff --git a/g13-os/src/mouse.rs b/g13-os/src/mouse.rs
new file mode 100644
index 0000000..eb37ecf
--- /dev/null
+++ b/g13-os/src/mouse.rs
@@ -0,0 +1,92 @@
+use std::cell::RefCell;
+
+use embedded_graphics::{Drawable, Pixel, pixelcolor::BinaryColor, prelude::Point};
+use g13_driver::{G13, G13_LCD_COLUMNS, G13_LCD_ROWS, State};
+
+#[rustfmt::skip]
+const MOUSE_CURSOR: &[u8] = &[
+    2, 0, 0, 0, 0,
+    2, 2, 0, 0, 0,
+    2, 1, 2, 0, 0,
+    2, 1, 1, 2, 0,
+    2, 1, 2, 2, 2,
+    2, 2, 0, 0, 0,
+];
+
+pub struct Mouse {
+    deadzone: i32,
+    speed: f32,
+    x: RefCell<f32>,
+    y: RefCell<f32>,
+}
+
+impl Default for Mouse {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Mouse {
+    pub fn new() -> Self {
+        Self {
+            deadzone: 40,
+            speed: 20.0,
+            x: RefCell::new(G13_LCD_COLUMNS as f32 / 2.0 - 2.0),
+            y: RefCell::new(G13_LCD_ROWS as f32 / 2.0 - 3.0),
+        }
+    }
+
+    pub fn update(&self, state: State, delta: f32) {
+        let offset: i32 = 512 - self.deadzone;
+        let mut x = state.x;
+        let mut y = state.y;
+
+        x = if x.abs() < self.deadzone {
+            0
+        } else {
+            x - self.deadzone * x.signum()
+        };
+
+        y = if y.abs() < self.deadzone {
+            0
+        } else {
+            y - self.deadzone * y.signum()
+        };
+
+        let x = x as f32 / offset as f32;
+        let y = y as f32 / offset as f32;
+
+        let mut sx = self.x.borrow_mut();
+        let mut sy = self.y.borrow_mut();
+
+        *sx = (*sx + x * delta * self.speed * 1.2).clamp(0., (G13_LCD_COLUMNS - 1) as f32);
+        *sy = (*sy + y * delta * self.speed).clamp(0., (G13_LCD_ROWS - 1) as f32);
+    }
+
+    pub fn get_x(&self) -> i32 {
+        *self.x.borrow() as i32
+    }
+
+    pub fn get_y(&self) -> i32 {
+        *self.y.borrow() as i32
+    }
+
+    pub fn render(&self, g13: &mut G13) {
+        for (i, value) in MOUSE_CURSOR.iter().enumerate() {
+            let x = i as i32 % 5;
+            let y = i as i32 / 5;
+
+            let color = if *value == 1 {
+                BinaryColor::Off
+            } else if *value == 2 {
+                BinaryColor::On
+            } else {
+                continue;
+            };
+
+            Pixel(Point::new(self.get_x() + x, self.get_y() + y), color)
+                .draw(g13)
+                .expect("G13 to be Connected");
+        }
+    }
+}
diff --git a/g13-os/src/os.rs b/g13-os/src/os.rs
new file mode 100644
index 0000000..089c069
--- /dev/null
+++ b/g13-os/src/os.rs
@@ -0,0 +1,231 @@
+use std::{
+    fs::read_dir,
+    sync::{
+        Arc,
+        atomic::{AtomicBool, Ordering},
+    },
+    time::Instant,
+};
+
+use embedded_graphics::{
+    Drawable,
+    mono_font::ascii::*,
+    pixelcolor::BinaryColor,
+    prelude::{DrawTarget, Point, Primitive, Size},
+    primitives::{Line, PrimitiveStyle, PrimitiveStyleBuilder, Rectangle},
+    text::{Alignment, Baseline, Text, TextStyleBuilder},
+};
+use g13_driver::{G13, G13_LCD_COLUMNS, G13_LCD_ROWS};
+use mlua::Lua;
+use time::{OffsetDateTime, macros::offset};
+
+use crate::mouse::Mouse;
+
+pub struct App {
+    name: String,
+}
+
+pub struct Button {
+    label: String,
+    action: Option<fn()>,
+}
+
+pub struct G13Os {
+    g13: G13,
+    lua: Lua,
+    running: Arc<AtomicBool>,
+    apps: Vec<App>,
+    running_app: Option<App>,
+    buttons: [Option<Button>; 4],
+    mouse: Mouse,
+}
+
+impl G13Os {
+    pub fn new() -> Self {
+        let g13 = G13::new().expect("G13 to be connected");
+        let lua = Lua::new();
+        let running = Arc::new(AtomicBool::new(false));
+        let mut apps = Vec::new();
+
+        let buttons = [
+            Some(Button {
+                label: "Settings".to_owned(),
+                action: None,
+            }),
+            // Some(Button {
+            //     label: "Down".to_owned(),
+            //     action: None,
+            // }),
+            None,
+            // Some(Button {
+            //     label: "Up".to_owned(),
+            //     action: None,
+            // }),
+            None,
+            Some(Button {
+                label: "00:00".to_owned(),
+                action: None,
+            }),
+        ];
+
+        for entry in read_dir("./apps").unwrap() {
+            apps.push(App {
+                name: entry.unwrap().file_name().into_string().unwrap(),
+            });
+        }
+
+        Self {
+            g13,
+            lua,
+            running,
+            apps,
+            running_app: None,
+            buttons,
+            mouse: Mouse::new(),
+        }
+    }
+
+    pub fn run(&self) {
+        let running = self.running.clone();
+        running.store(true, Ordering::SeqCst);
+
+        ctrlc::set_handler(move || running.store(false, Ordering::SeqCst))
+            .expect("Error setting Ctrl-C handler");
+
+        self.start_input_thread();
+
+        let mut g13 = self.g13.clone();
+        let mut delta = 0.0;
+        while self.running.load(Ordering::SeqCst) {
+            let start = Instant::now();
+            g13.clear(BinaryColor::Off).expect("G13 to be connected");
+
+            let mut show_mouse = false;
+
+            if self.running_app.is_none() {
+                self.render_menu();
+                show_mouse = true;
+            } else {
+                // render app
+                // if app.is_init == false
+                //   app.is_init = true
+                //   app.init()
+                // ..
+                // app.update();
+            }
+
+            if show_mouse {
+                self.mouse.update(g13.state(), delta);
+                self.mouse.render(&mut g13);
+            }
+
+            g13.render().expect("G13 to be connected");
+
+            delta = (Instant::now() - start).as_secs_f32();
+        }
+    }
+
+    fn render_menu(&self) {
+        let mut g13 = self.g13.clone();
+
+        // todo: const
+        let button_count = 4;
+        let button_width = G13_LCD_COLUMNS / button_count;
+
+        let fill = PrimitiveStyleBuilder::new()
+            .fill_color(BinaryColor::On)
+            .build();
+
+        let stroke = PrimitiveStyleBuilder::new()
+            .stroke_color(BinaryColor::On)
+            .stroke_width(1)
+            .build();
+
+        let character_style =
+            embedded_graphics::mono_font::MonoTextStyle::new(&FONT_4X6, BinaryColor::On);
+        let character_style_inv =
+            embedded_graphics::mono_font::MonoTextStyle::new(&FONT_4X6, BinaryColor::Off);
+        let textstyle = TextStyleBuilder::new()
+            .alignment(Alignment::Center)
+            .baseline(Baseline::Top)
+            .build();
+
+        for (i, btn) in self.buttons.iter().enumerate() {
+            let Some(btn) = btn else {
+                continue;
+            };
+
+            let line_x = i as i32 * button_width;
+
+            Line::new(Point::new(line_x, 8), Point::new(line_x + button_width, 8))
+                .into_styled(stroke)
+                .draw(&mut g13)
+                .expect("G13 to be connected");
+
+            if i > 0 && i < 4 {
+                Line::new(Point::new(line_x, 0), Point::new(line_x, 8))
+                    .into_styled(stroke)
+                    .draw(&mut g13)
+                    .expect("G13 to be connected");
+            }
+
+            Line::new(
+                Point::new(line_x + button_width, 0),
+                Point::new(line_x + button_width, 8),
+            )
+            .into_styled(stroke)
+            .draw(&mut g13)
+            .expect("G13 to be connected");
+
+            let i = i as i32;
+            let text_x = ((i + 1) * button_width) - (button_width / 2);
+
+            let mut label = btn.label.clone();
+            if label.len() > 8 {
+                let _ = label.split_off(8);
+            }
+
+            if label == "00:00" {
+                let now = OffsetDateTime::now_utc().to_offset(offset!(+1)); // GMT+1
+
+                // Render
+                label = format!(
+                    "{:0>2}:{:0>2}:{:0>2}",
+                    now.hour(),
+                    now.minute(),
+                    now.second()
+                );
+            }
+
+            let style = if self.mouse.get_x() > i * button_width
+                && self.mouse.get_x() < (i + 1) * button_width
+                && self.mouse.get_y() < 8
+            {
+                Rectangle::new(
+                    Point::new(i * button_width, 0),
+                    Size::new(button_width as u32, 8),
+                )
+                .into_styled(fill)
+                .draw(&mut g13)
+                .expect("G13 to be Connected");
+
+                character_style_inv
+            } else {
+                character_style
+            };
+            Text::with_text_style(&label, Point::new(text_x, 1), style, textstyle)
+                .draw(&mut g13)
+                .expect("G13 to be connected");
+        }
+    }
+
+    fn start_input_thread(&self) {
+        let g13 = self.g13.clone();
+        let running = self.running.clone();
+        std::thread::spawn(move || {
+            while running.load(Ordering::SeqCst) {
+                let _ = g13.read();
+            }
+        });
+    }
+}