move appdata out to new module

ch32v-insert-coin/src/app.rs

@@ -0,0 +1,66 @@
+#[derive(Default)]
+pub enum State {
+    // system is asleep, waiting for wake from coin insertion
+    DeepSleep,
+    // system is in low-power mode, dimmed lights, waiting for interaction
+    Idle,
+    // system is active. on entry: play coin sound. on button press: play different sound
+    #[default]
+    Active,
+}
+
+mod settings {
+    pub enum Level {
+        Off,
+        Low,
+        Medium,
+        High,
+        Maximum,
+    }
+
+    impl Level {
+        pub fn next(&mut self) {
+            *self = match self {
+                Self::Off => Self::Low,
+                Self::Low => Self::Medium,
+                Self::Medium => Self::High,
+                Self::High => Self::Maximum,
+                Self::Maximum => Self::Off,
+            };
+        }
+    }
+
+    pub struct Settings {
+        pub brightness: Level,
+        pub volume: Level,
+        pub button_sound_index: usize,
+    }
+
+    impl Default for Settings {
+        fn default() -> Self {
+            Self {
+                brightness: Level::Medium,
+                volume: Level::Medium,
+                button_sound_index: 0,
+            }
+        }
+    }
+}
+
+pub use settings::Settings;
+
+pub struct App {
+    state: State,
+    pub settings: Settings,
+    // TODO: make this the "sound module" or whatever.
+    // synthesizers: AppSynthesizers,
+}
+
+impl Default for App {
+    fn default() -> Self {
+        Self {
+            state: State::default(),
+            settings: Settings::default(),
+        }
+    }
+}