more skeleton

lib/state_machine/Cargo.toml

@@ -3,5 +3,5 @@ name = "hyped_state_machine"
 version = "0.1.0"
 edition = "2021"
 
-[lib]
-path = "src/state_machine.rs"
+[features]
+std = []

lib/state_machine/src/lib.rs

@@ -0,0 +1,4 @@
+#![cfg_attr(not(feature = "std"), no_std)]
+
+pub mod state_machine;
+pub mod types;

lib/state_machine/src/state_machine.rs

@@ -1 +1,12 @@
-#![no_std]
+use crate::types::State;
+
+pub struct StateMachine {
+    current_state: State,
+    // transition_map: HashMap<SourceAndTarget, State> (use heapless::FnvIndexMap)?
+}
+
+impl StateMachine {
+    pub fn handle_transition(&mut self) {
+        self.current_state = State::KStopped;
+    }
+}

lib/state_machine/src/types.rs

@@ -0,0 +1,27 @@
+#[derive(Hash)]
+pub enum State {
+    KIdle,
+    KCalibrate,
+    KPrecharge,
+    KReadyForLevitation,
+    KBeginLevitation,
+    KLevitating,
+    KReady,
+    KAccelerate,
+    KLimBrake,
+    KFrictionBrake,
+    KStopLevitation,
+    KStopped,
+    KBatteryRecharge,
+    KCapacitorDischarge,
+    KFailureBrake,
+    KFailure,
+    KSafe,
+    KShutdown,
+}
+
+#[derive(Hash)]
+pub struct SourceAndTarget {
+    source: State,
+    target: State,
+}