Adding more stuff in

src/renderer/mod.rs

@@ -0,0 +1,36 @@
+
+pub mod structs;
+use sdl3::{pixels::Color};
+use structs::{Prefs, Screen};
+
+/// Initialize video, allocate buffers and load fonts
+/// Based on https://github.com/vhspace/sdl3-rs/blob/master/examples/ttf-demo.rs
+
+pub fn init(prefs: &Prefs) -> &mut structs::Screen {
+    // Initialize the screen   
+    let sdl_context = sdl3::init().unwrap();
+    let video_subsys = sdl_context.video().unwrap();
+
+    let window = video_subsys
+    .window("Dublin Bus", prefs.screen_width, prefs.screen_height)
+    .position_centered()
+    .borderless()
+    //.fullscreen()
+    .build().unwrap();
+
+    // Load font
+    let ttf_context = sdl3::ttf::init().unwrap();
+    let mut font = ttf_context.load_font(&prefs.font_path, 128.0).unwrap();
+
+    // Clear screen
+    let mut canvas = window.into_canvas();
+    canvas.set_draw_color(Color::BLACK);
+    canvas.clear();
+    canvas.present();
+
+    let screen = Screen { 
+        canvas:  &canvas, 
+        font: &font,
+    };
+    return &mut &screen;
+}

src/renderer/structs.rs

@@ -0,0 +1,13 @@
+use sdl3::{render::Canvas, ttf::Font, video::Window};
+
+
+pub struct Prefs {
+    pub font_path: String,
+    pub screen_width: u32,
+    pub screen_height: u32,
+}
+
+pub struct Screen<'a> {
+    pub canvas: &'a Canvas<Window>,
+    pub font: &'a Font<'a>,
+}