input and text and stuff

Cargo.lock

@@ -2783,6 +2783,7 @@ dependencies = [
 name = "g13-os"
 version = "0.1.0"
 dependencies = [
+ "ctrlc",
  "embedded-graphics",
  "g13-driver",
  "mlua",

g13-os/Cargo.toml

@@ -6,4 +6,10 @@ edition.workspace = true
 [dependencies]
 g13-driver.workspace = true
 embedded-graphics = "0.8"
-mlua = { version = "0.11.6", features = ["luau-jit", "async", "macros", "serde"] }
+mlua = { version = "0.11.6", features = [
+    "luau-jit",
+    "async",
+    "macros",
+    "serde",
+] }
+ctrlc = "3.5"

g13-os/src/main.rs

@@ -1,23 +1,48 @@
+use g13_driver::{G13, G13_LCD_COLUMNS, G13_LCD_ROWS};
+use mlua::{Error, ExternalResult, Lua};
 use std::{
     fs,
+    sync::{
+        Arc,
+        atomic::{AtomicBool, Ordering},
+    },
     thread::sleep,
     time::{Duration, Instant},
 };
 
-use g13_driver::{G13, G13_LCD_COLUMNS, G13_LCD_ROWS};
-use mlua::{ExternalResult, Lua};
-
 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 lua = Lua::new();
     let globals = lua.globals();
-
     let g13_table = lua.create_table()?;
 
+    let _running = running.clone();
+    let _g13 = g13.clone();
+    std::thread::spawn(move || {
+        while _running.load(Ordering::SeqCst) {
+            if _g13.read().is_err() {
+                _running.store(false, Ordering::SeqCst);
+            }
+        }
+    });
+
     let _g13 = g13.clone();
     g13_table.set(
         "set_color",
-        lua.create_function(move |_, (r, g, b)| _g13.set_lcd_color(r, g, b).into_lua_err())?,
+        lua.create_function(move |_, (r, g, b): (i32, i32, i32)| {
+            _g13.set_lcd_color(
+                r.clamp(0, 255) as u8,
+                g.clamp(0, 255) as u8,
+                b.clamp(0, 255) as u8,
+            )
+            .into_lua_err()
+        })?,
     )?;
 
     let _g13 = g13.clone();
@@ -31,8 +56,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             BinaryColor::Off
         };
         _g13.clear(color).into_lua_err()
-    });
+    })?;
-    g13_table.set("clear", fn_clear?)?;
+    g13_table.set("clear", fn_clear)?;
 
     let mut _g13 = g13.clone();
     let fn_set_pixel = lua.create_function_mut(move |_, (x, y, on)| {
@@ -46,14 +71,107 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         Pixel(Point::new(x, y), color)
             .draw(&mut _g13)
             .into_lua_err()
-    });
+    })?;
-    g13_table.set("set_pixel", fn_set_pixel?)?;
+    g13_table.set("set_pixel", fn_set_pixel)?;
+
+    let mut _g13 = g13.clone();
+    let fn_text = lua.create_function_mut(
+        move |_,
+              (text, x, y, color, alignment, baseline, size): (
+            String,
+            i32,
+            i32,
+            bool,
+            i32,
+            i32,
+            i32,
+        )| {
+            use embedded_graphics::mono_font::ascii::*;
+            use embedded_graphics::pixelcolor::BinaryColor;
+            use embedded_graphics::prelude::*;
+            use embedded_graphics::text::*;
+
+            let alignment = match alignment {
+                0 => Alignment::Left,
+                1 => Alignment::Center,
+                2 => Alignment::Right,
+                _ => {
+                    return Err(Error::RuntimeError(
+                        "Invalid alignment, allowed values: 0, 1, 2".into(),
+                    ));
+                }
+            };
+
+            let baseline = match baseline {
+                0 => Baseline::Top,
+                1 => Baseline::Middle,
+                2 => Baseline::Bottom,
+                _ => {
+                    return Err(Error::RuntimeError(
+                        "Invalid baseline, allowed values: 0, 1, 2".into(),
+                    ));
+                }
+            };
+
+            let color = if color {
+                BinaryColor::On
+            } else {
+                BinaryColor::Off
+            };
+
+            let size = match size {
+                2 => FONT_5X7,
+                3 => FONT_5X8,
+                4 => FONT_6X9,
+                5 => FONT_6X10,
+                6 => FONT_6X12,
+                7 => FONT_6X13,
+                8 => FONT_6X13_BOLD,
+                9 => FONT_6X13_ITALIC,
+                10 => FONT_7X13,
+                11 => FONT_7X13_BOLD,
+                12 => FONT_7X13_ITALIC,
+                13 => FONT_7X14,
+                14 => FONT_7X14_BOLD,
+                15 => FONT_8X13,
+                16 => FONT_8X13_BOLD,
+                17 => FONT_8X13_ITALIC,
+                18 => FONT_9X15,
+                19 => FONT_9X15_BOLD,
+                20 => FONT_9X18,
+                21 => FONT_9X18_BOLD,
+                22 => FONT_10X20,
+                _ => FONT_4X6,
+            };
+
+            let character_style = embedded_graphics::mono_font::MonoTextStyle::new(&size, color);
+
+            let textstyle = TextStyleBuilder::new()
+                .alignment(alignment)
+                .baseline(baseline)
+                .build();
+
+            let pos = Point::new(x, y);
+
+            Text::with_text_style(&text, pos, character_style, textstyle)
+                .draw(&mut _g13)
+                .into_lua_err()?;
+            Ok(())
+        },
+    )?;
+    g13_table.set("text", fn_text)?;
 
     g13_table.set("display_width", G13_LCD_COLUMNS)?;
     g13_table.set("display_height", G13_LCD_ROWS)?;
 
     globals.set("g13", g13_table)?;
 
+    let joy = lua.create_table()?;
+    joy.set("x", 0.0f32)?;
+    joy.set("y", 0.0f32)?;
+    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]>
     // for now, just main.luau
     let main = fs::read_to_string("./scripts/main.luau")?;
@@ -67,10 +185,46 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     if lua.load("update ~= nil").eval()? {
         let mut _g13 = g13.clone();
         let mut delta: f32 = 0.0;
-        loop {
+        while running.load(std::sync::atomic::Ordering::SeqCst) {
             let start = Instant::now();
+            let state = g13.state();
+
+            let mut deadzone: i32 = lua.load("joy.deadzone").eval()?;
+            if deadzone > 512 {
+                deadzone = 0;
+            }
+            let offset: i32 = 512 - deadzone;
+            let mut x = state.x;
+            let mut y = state.y;
+
+            x = if x.abs() < deadzone {
+                0
+            } else {
+                x - deadzone * x.signum()
+            };
+
+            y = if y.abs() < deadzone {
+                0
+            } else {
+                y - deadzone * y.signum()
+            };
+
+            lua.load(format!(
+                "joy.x = {}\njoy.y = {}",
+                x as f32 / offset as f32,
+                y as f32 / offset as f32
+            ))
+            .exec()?;
+
+            let buttons = lua.create_table()?;
+            buttons.set("t1", state.buttons.screen1)?;
+            buttons.set("t2", state.buttons.screen2)?;
+            buttons.set("t3", state.buttons.screen3)?;
+            buttons.set("t4", state.buttons.screen4)?;
+            globals.set("buttons", buttons)?;
 
             lua.load(format!("update({})", delta)).exec()?;
+
             _g13.render()?;
 
             let duration = Instant::now() - start;
@@ -79,9 +233,12 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             if duration < Duration::from_millis(33) {
                 sleep(Duration::from_millis(33) - duration);
             }
+
             delta = (Instant::now() - start).as_secs_f32();
         }
     }
 
+    running.store(false, Ordering::SeqCst);
+
     Ok(())
 }

scripts/main.luau

@@ -15,25 +15,23 @@ local speed = 20
 
 local size = 3
 
+function setup()
+    joy.deadzone = 40
+end
+
 function update(delta: number)
-    local x = x + speed * delta * x_direction
+    x = x + speed * delta * joy.x * 1.2
-    local y = y + speed * delta * y_direction
+    y = y + speed * delta * joy.y
-
-    if x <= size or x >= width - size then
-        x_direction = -x_direction
-    end
-
-    if y <= size or y >= height - size then
-        y_direction = -y_direction
-    end
 
     local color_x = (x / width) * 255
     local color_y = (y / height) * 255
     local color_z = 255 - (color_x + color_y) / 2
 
+    g13.clear()
+
     g13.set_color(color_x/2, color_y/2, color_z/2)
 
-    g13.clear()
+    g13.text("Hello World!", 1, 1, true, 0, 0, 1)
 
     for sy = -size,size do
         for sx = -size,size do
@@ -41,3 +39,16 @@ function update(delta: number)
         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
+end