load animation for slider ball

src/game.rs

@@ -26,8 +26,8 @@ pub struct Game {
     song: Option<Sound>,
     beatmap: Beatmap,
     hit_objects: Vec<HitObject>,
-    skin: Skin,
-
+    pub skin: Skin,
+    frame: usize,
     slider_cache: SliderCache,
 }
 
@@ -45,6 +45,7 @@ impl Game {
             hit_objects,
             song: None,
             skin,
+            frame: 0,
             slider_cache: SliderCache::default(),
         })
     }
@@ -60,7 +61,7 @@ impl Game {
         let dir = path.parent().unwrap();
 
         let song = Sound::create(dir.join(&self.beatmap.audio_filename))?;
-        // song.set_position(36.5)?;
+        song.set_position(113.0)?;
         self.song = Some(song);
 
         Ok(())
@@ -79,6 +80,7 @@ impl Game {
     fn priv_draw(&mut self, ctx: &mut Context) -> Result<()> {
         // TODO: lol
         const PLAYFIELD_BOUNDS: Rect = Rect::new(112.0, 112.0, 800.0, 600.0);
+        const SEEKER_BOUNDS: Rect = Rect::new(46.0, 722.0, 932.0, 36.0);
 
         graphics::clear(ctx, [0.0, 0.0, 0.0, 1.0].into());
 
@@ -176,15 +178,21 @@ impl Game {
                         PLAYFIELD_BOUNDS.x + osupx_scale_x * pos.0 as f32,
                         PLAYFIELD_BOUNDS.y + osupx_scale_y * pos.1 as f32,
                     ];
-                    let ball = Mesh::new_circle(
+                    self.skin.sliderb.draw_frame(
                         ctx,
-                        DrawMode::Fill(FillOptions::default()),
-                        ball_pos,
-                        cs_real,
-                        1.0,
-                        graphics::WHITE,
+                        (cs_real * 2.0, cs_real * 2.0),
+                        DrawParam::default().dest(ball_pos),
+                        (travel_percent / 0.25) as usize,
                     )?;
-                    graphics::draw(ctx, &ball, DrawParam::default())?;
+                    // let ball = Mesh::new_circle(
+                    //     ctx,
+                    //     DrawMode::Fill(FillOptions::default()),
+                    //     ball_pos,
+                    //     cs_real,
+                    //     1.0,
+                    //     graphics::WHITE,
+                    // )?;
+                    // graphics::draw(ctx, &ball, DrawParam::default())?;
                 }
             }
 
@@ -212,6 +220,7 @@ impl Game {
         }
 
         graphics::present(ctx)?;
+        self.frame += 1;
         Ok(())
     }
 }

src/main.rs

@@ -35,11 +35,12 @@ fn main() -> Result<()> {
         .window_setup(WindowSetup::default().title("OSU editor"))
         .window_mode(WindowMode::default().dimensions(1024.0, 768.0));
 
-    let (ctx, event_loop) = &mut cb.build()?;
+    let (mut ctx, mut event_loop) = cb.build()?;
     let mut game = Game::new()?;
+    game.skin.load_all(&mut ctx)?;
     let path = env::args().nth(1).unwrap();
     game.load_beatmap(path)?;
-    event::run(ctx, event_loop, &mut game)?;
+    event::run(&mut ctx, &mut event_loop, &mut game)?;
 
     Ok(())
 }

src/skin.rs

@@ -8,7 +8,7 @@ use ggez::{
 };
 
 macro_rules! create_skin {
-    ($([$name:ident]),* $(,)?) => {
+    ($([$name:ident, $animatable:expr $(,)?]),* $(,)?) => {
         pub struct Skin {
             $(
                 pub $name: Texture,
@@ -18,40 +18,80 @@ macro_rules! create_skin {
         impl Skin {
             pub fn new() -> Self {
                 Skin {
-                    $($name: Texture::with_path(concat!("/", stringify!($name), ".png")),)*
+                    $($name: Texture::with_name(stringify!($name), $animatable),)*
                 }
             }
+
+            // TODO: do this asynchronously?
+            pub fn load_all(&mut self, ctx: &mut Context) -> Result<()> {
+                $(
+                    self.$name.load(ctx)?;
+                 )*
+                Ok(())
+            }
         }
     }
 }
 
 create_skin! {
-    [approachcircle],
-    [hitcircle],
-    [hitcircleoverlay],
+    [approachcircle, false],
+    [hitcircle, false],
+    [hitcircleoverlay, false],
+    [sliderb, true],
 }
 
 pub struct Texture {
-    path: PathBuf,
+    name: &'static str,
     image: Option<Image>,
+    animatable: bool,
+    animation: Vec<Image>,
 }
 
 impl Texture {
-    pub fn with_path(path: impl AsRef<Path>) -> Self {
+    pub fn with_name(name: &'static str, animatable: bool) -> Self {
         Texture {
-            path: path.as_ref().to_path_buf(),
+            name,
             image: None,
+            animatable,
+            animation: vec![],
         }
     }
 
-    pub fn draw(&mut self, ctx: &mut Context, size: (f32, f32), param: DrawParam) -> Result<()> {
-        let image = if self.image.is_some() {
-            self.image.as_ref().unwrap()
-        } else {
-            self.image = Some(Image::new(ctx, &self.path)?);
-            self.image.as_ref().unwrap()
-        };
+    pub fn load(&mut self, ctx: &mut Context) -> Result<()> {
+        let mut found = false;
+        if self.animatable {
+            // god fucking dammit
+            let hyphen = if self.name == "sliderb" { "" } else { "-" };
 
+            self.animation.clear();
+            let mut curr = 0;
+            loop {
+                let image = match Image::new(ctx, &format!("/{}{}{}.png", self.name, hyphen, curr))
+                {
+                    Ok(v) => v,
+                    Err(_) => break,
+                };
+                self.animation.push(image);
+                found = true;
+                curr += 1;
+            }
+            println!("loaded {} images!", curr);
+        }
+
+        if !found {
+            self.image = Some(Image::new(ctx, &format!("/{}.png", self.name))?);
+        }
+
+        Ok(())
+    }
+
+    fn draw_image(
+        &self,
+        ctx: &mut Context,
+        image: &Image,
+        size: (f32, f32),
+        param: DrawParam,
+    ) -> Result<()> {
         let random_constant = 1.35;
         let x_scale = random_constant * size.0 / image.width() as f32;
         let y_scale = random_constant * size.1 / image.height() as f32;
@@ -64,4 +104,25 @@ impl Texture {
         )?;
         Ok(())
     }
+
+    pub fn draw(&mut self, ctx: &mut Context, size: (f32, f32), param: DrawParam) -> Result<()> {
+        let image = self.image.as_ref().unwrap();
+        self.draw_image(ctx, image, size, param)
+    }
+
+    pub fn draw_frame(
+        &mut self,
+        ctx: &mut Context,
+        size: (f32, f32),
+        param: DrawParam,
+        frame: usize,
+    ) -> Result<()> {
+        let image = if self.animatable {
+            let ct = frame % self.animation.len();
+            self.animation.get(ct).unwrap()
+        } else {
+            self.image.as_ref().unwrap()
+        };
+        self.draw_image(ctx, image, size, param)
+    }
 }