feat: re-add board offset logic, fixup text rendering

src/constants.rs

@@ -11,9 +11,16 @@ pub const BOARD_CELL_SIZE: UVec2 = UVec2::new(28, 31);
 pub const SCALE: f32 = 2.6;
 
 /// The offset of the game board from the top-left corner of the window, in cells.
-pub const BOARD_OFFSET: UVec2 = UVec2::new(0, 0);
+pub const BOARD_CELL_OFFSET: UVec2 = UVec2::new(0, 3);
+/// The offset of the game board from the top-left corner of the window, in pixels.
+pub const BOARD_PIXEL_OFFSET: UVec2 = UVec2::new(BOARD_CELL_OFFSET.x * CELL_SIZE, BOARD_CELL_OFFSET.y * CELL_SIZE);
 /// The size of the game board, in pixels.
 pub const BOARD_PIXEL_SIZE: UVec2 = UVec2::new(BOARD_CELL_SIZE.x * CELL_SIZE, BOARD_CELL_SIZE.y * CELL_SIZE);
+/// The size of the canvas, in pixels.
+pub const CANVAS_SIZE: UVec2 = UVec2::new(
+    (BOARD_CELL_SIZE.x + BOARD_CELL_OFFSET.x) * CELL_SIZE,
+    (BOARD_CELL_SIZE.y + BOARD_CELL_OFFSET.y) * CELL_SIZE,
+);
 
 /// An enum representing the different types of tiles on the map.
 #[derive(Debug, Clone, Copy, PartialEq)]

src/entity/edible.rs

@@ -63,13 +63,13 @@ impl Renderable for Edible {
         let pos = self.base.pixel_position;
         let dest = match &mut self.sprite {
             EdibleSprite::Pellet(sprite) => {
-                let mut tile = sprite.current_tile();
+                let tile = sprite.current_tile();
                 let x = pos.x + ((crate::constants::CELL_SIZE as i32 - tile.size.x as i32) / 2);
                 let y = pos.y + ((crate::constants::CELL_SIZE as i32 - tile.size.y as i32) / 2);
                 sdl2::rect::Rect::new(x, y, tile.size.x as u32, tile.size.y as u32)
             }
             EdibleSprite::PowerPellet(sprite) => {
-                let mut tile = sprite.animation.current_tile();
+                let tile = sprite.animation.current_tile();
                 let x = pos.x + ((crate::constants::CELL_SIZE as i32 - tile.size.x as i32) / 2);
                 let y = pos.y + ((crate::constants::CELL_SIZE as i32 - tile.size.y as i32) / 2);
                 sdl2::rect::Rect::new(x, y, tile.size.x as u32, tile.size.y as u32)

src/entity/mod.rs

@@ -6,7 +6,7 @@ pub mod pacman;
 pub mod speed;
 
 use crate::{
-    constants::{MapTile, BOARD_CELL_SIZE, BOARD_OFFSET, CELL_SIZE},
+    constants::{MapTile, BOARD_CELL_OFFSET, BOARD_CELL_SIZE, CELL_SIZE},
     entity::{direction::Direction, speed::SimpleTickModulator},
     map::Map,
 };
@@ -145,8 +145,8 @@ impl Moving for MovableEntity {
     }
     fn update_cell_position(&mut self) {
         self.base.cell_position = UVec2::new(
-            (self.base.pixel_position.x as u32 / CELL_SIZE) - BOARD_OFFSET.x,
-            (self.base.pixel_position.y as u32 / CELL_SIZE) - BOARD_OFFSET.y,
+            (self.base.pixel_position.x as u32 / CELL_SIZE) - BOARD_CELL_OFFSET.x,
+            (self.base.pixel_position.y as u32 / CELL_SIZE) - BOARD_CELL_OFFSET.y,
         );
     }
     fn next_cell(&self, direction: Option<Direction>) -> IVec2 {

src/game.rs

@@ -4,12 +4,13 @@ use std::ops::Not;
 use std::rc::Rc;
 
 use anyhow::Result;
-use glam::{IVec2, UVec2};
+use glam::UVec2;
 use rand::rngs::SmallRng;
 use rand::seq::IteratorRandom;
 use rand::SeedableRng;
 use sdl2::image::LoadTexture;
 use sdl2::keyboard::Keycode;
+
 use sdl2::render::{Texture, TextureCreator};
 use sdl2::video::WindowContext;
 use sdl2::{pixels::Color, render::Canvas, video::Window};
@@ -268,7 +269,6 @@ impl Game {
                 }
                 let _ = this.pacman.borrow_mut().render(texture_canvas);
                 let _ = this.blinky.render(texture_canvas);
-                this.render_ui_on(texture_canvas);
                 match this.debug_mode {
                     DebugMode::Grid => {
                         DebugRenderer::draw_debug_grid(
@@ -290,10 +290,11 @@ impl Game {
             })
             .map_err(|e| anyhow::anyhow!(format!("Failed to render to backbuffer: {e}")))
     }
-    pub fn present_backbuffer(&self, canvas: &mut Canvas<Window>, backbuffer: &Texture) -> Result<()> {
+    pub fn present_backbuffer(&mut self, canvas: &mut Canvas<Window>, backbuffer: &Texture) -> Result<()> {
         canvas.set_draw_color(Color::BLACK);
         canvas.clear();
         canvas.copy(backbuffer, None, None).map_err(anyhow::Error::msg)?;
+        self.render_ui_on(canvas);
         canvas.present();
         Ok(())
     }
@@ -301,22 +302,21 @@ impl Game {
     fn render_ui_on<C: sdl2::render::RenderTarget>(&mut self, canvas: &mut sdl2::render::Canvas<C>) {
         let lives = 3;
         let score_text = format!("{:02}", self.score);
-        let x_offset = 12;
+        let x_offset = 4;
         let y_offset = 2;
         let lives_offset = 3;
         let score_offset = 7 - (score_text.len() as i32);
-        let gap_offset = 6;
-        self.text_texture.set_scale(2.0);
-        self.text_texture.render(
+        self.text_texture.set_scale(1.0);
+        let _ = self.text_texture.render(
             canvas,
             &format!("{lives}UP   HIGH SCORE   "),
-            UVec2::new(24 * lives_offset as u32 + x_offset, y_offset),
+            UVec2::new(8 * lives_offset as u32 + x_offset, y_offset),
             Color::WHITE,
         );
-        self.text_texture.render(
+        let _ = self.text_texture.render(
             canvas,
             &score_text,
-            UVec2::new(24 * score_offset as u32 + x_offset, 24 + y_offset + gap_offset),
+            UVec2::new(8 * score_offset as u32 + x_offset, 8 + y_offset),
             Color::WHITE,
         );
 

src/main.rs

@@ -1,6 +1,6 @@
 #![windows_subsystem = "windows"]
 
-use crate::constants::{BOARD_PIXEL_SIZE, SCALE};
+use crate::constants::{CANVAS_SIZE, SCALE};
 use crate::game::Game;
 use sdl2::event::{Event, WindowEvent};
 use sdl2::keyboard::Keycode;
@@ -105,8 +105,8 @@ pub fn main() {
     let window = video_subsystem
         .window(
             "Pac-Man",
-            (BOARD_PIXEL_SIZE.x as f32 * SCALE).round() as u32,
-            (BOARD_PIXEL_SIZE.y as f32 * SCALE).round() as u32,
+            (CANVAS_SIZE.x as f32 * SCALE).round() as u32,
+            (CANVAS_SIZE.y as f32 * SCALE).round() as u32,
         )
         .resizable()
         .position_centered()
@@ -116,7 +116,7 @@ pub fn main() {
     let mut canvas = window.into_canvas().build().expect("Could not build canvas");
 
     canvas
-        .set_logical_size(BOARD_PIXEL_SIZE.x, BOARD_PIXEL_SIZE.y)
+        .set_logical_size(CANVAS_SIZE.x, CANVAS_SIZE.y)
         .expect("Could not set logical size");
 
     let texture_creator = canvas.texture_creator();
@@ -127,7 +127,7 @@ pub fn main() {
 
     // Create a backbuffer texture for drawing
     let mut backbuffer = texture_creator_static
-        .create_texture_target(None, BOARD_PIXEL_SIZE.x, BOARD_PIXEL_SIZE.y)
+        .create_texture_target(None, CANVAS_SIZE.x, CANVAS_SIZE.y)
         .expect("Could not create backbuffer texture");
 
     let mut event_pump = sdl_context.event_pump().expect("Could not get SDL EventPump");
@@ -154,7 +154,7 @@ pub fn main() {
     let mut last_frame_time = Instant::now();
 
     event!(tracing::Level::INFO, "Starting game loop ({:?})", loop_time);
-    let mut main_loop = || {
+    let mut main_loop = move || {
         let start = Instant::now();
         let current_frame_time = Instant::now();
         let frame_duration = current_frame_time.duration_since(last_frame_time);

src/map.rs

@@ -3,7 +3,7 @@ use rand::rngs::SmallRng;
 use rand::seq::IteratorRandom;
 use rand::SeedableRng;
 
-use crate::constants::{MapTile, BOARD_CELL_SIZE, BOARD_OFFSET, CELL_SIZE};
+use crate::constants::{MapTile, BOARD_CELL_OFFSET, BOARD_CELL_SIZE, BOARD_PIXEL_OFFSET, BOARD_PIXEL_SIZE, CELL_SIZE};
 use crate::texture::sprite::AtlasTile;
 use glam::{IVec2, UVec2};
 use once_cell::sync::OnceCell;
@@ -104,7 +104,10 @@ impl Map {
     ///
     /// * `cell` - The cell coordinates, in grid coordinates.
     pub fn cell_to_pixel(cell: UVec2) -> IVec2 {
-        IVec2::new((cell.x * CELL_SIZE) as i32, ((cell.y + BOARD_OFFSET.y) * CELL_SIZE) as i32)
+        IVec2::new(
+            (cell.x * CELL_SIZE) as i32,
+            ((cell.y + BOARD_CELL_OFFSET.y) * CELL_SIZE) as i32,
+        )
     }
 
     /// Returns a reference to a cached vector of all valid playable positions in the maze.
@@ -162,7 +165,12 @@ impl Map {
 
     /// Renders the map to the given canvas using the provided map texture.
     pub fn render(&self, canvas: &mut Canvas<Window>, map_texture: &mut AtlasTile) {
-        let dest = Rect::new(0, 0, CELL_SIZE * BOARD_CELL_SIZE.x, CELL_SIZE * BOARD_CELL_SIZE.y);
+        let dest = Rect::new(
+            BOARD_PIXEL_OFFSET.x as i32,
+            BOARD_PIXEL_OFFSET.y as i32,
+            BOARD_PIXEL_SIZE.x,
+            BOARD_PIXEL_SIZE.y,
+        );
         let _ = map_texture.render(canvas, dest);
     }
 }

src/texture/animated.rs

@@ -1,6 +1,6 @@
 //! This module provides a simple animation and atlas system for textures.
 use anyhow::Result;
-use sdl2::{pixels::Color, render::WindowCanvas};
+use sdl2::render::WindowCanvas;
 
 use crate::texture::sprite::AtlasTile;
 
@@ -43,7 +43,7 @@ impl AnimatedTexture {
     }
 
     pub fn render(&mut self, canvas: &mut WindowCanvas, dest: sdl2::rect::Rect) -> Result<()> {
-        let mut tile = self.current_tile();
+        let tile = self.current_tile();
         tile.render(canvas, dest)
     }
 }

src/texture/text.rs

@@ -49,7 +49,6 @@
 use anyhow::Result;
 use glam::UVec2;
 use sdl2::pixels::Color;
-use sdl2::rect::Rect;
 use sdl2::render::{Canvas, RenderTarget};
 use std::cell::RefCell;
 use std::collections::HashMap;