Prototype of the first automation stull ugly

substrate/src/world/components.rs

@@ -91,7 +91,9 @@ pub(super) fn threshold_for(t: SensorType) -> f64 {
         SensorType::Temperature => 22.0,  // °C — simulator oscillates 15..25
         SensorType::Humidity => 55.0,     // %  — 30..70
         SensorType::Pressure => 1014.0,   // hPa — 1008..1018
-        SensorType::Voltage => 230.2,     // V  — 229.5..230.5
+        SensorType::Voltage => 230.5,     // V  — 229..231
         SensorType::Current => 10.5,      // A  — 8..12
+        SensorType::Presence => 1.0,      // s  — Trigger threshold
+        SensorType::Relay => f64::INFINITY, // Actuator state, no threshold
     }
 }

substrate/src/world/mod.rs

@@ -41,7 +41,10 @@ impl Plugin for WorldPlugin {
                 PreUpdate,
                 systems::ingest_system.run_if(in_state(ServerState::Started)),
             )
-            .add_systems(Update, systems::simulation_system)
+            .add_systems(
+                Update,
+                (systems::simulation_system, systems::automation_system).chain(),
+            )
             .add_systems(
                 PostUpdate,
                 (systems::export_system, systems::diagnostics_system).chain(),

substrate/src/world/systems.rs

@@ -144,6 +144,38 @@ fn upsert_reading(
     registry.map.insert(key, entity);
 }
 
+/// Closed-loop automation triggered by T1/T2 sensor data, affecting a T3 actuator.
+pub(super) fn automation_system(
+    mut registry: ResMut<SensorRegistry>,
+    mut commands: Commands,
+    mut p: ParamSet<(
+        Query<(&DeviceId, &SensorTypeTag, &RawSensorData), Changed<RawSensorData>>,
+        Query<&mut RawSensorData>,
+    )>,
+) {
+    let mut triggers = Vec::new();
+    for (dev_id, tag, data) in p.p0().iter() {
+        if tag.0 == SensorType::Presence {
+            // Trigger threshold: 1.0 seconds
+            let relay_state = if data.raw_value < 1.0 { 1.0 } else { 0.0 };
+            triggers.push((dev_id.0, relay_state));
+        }
+    }
+
+    let mut q = p.p1();
+    for (device_id, relay_state) in triggers {
+        let msg = QuicMessage {
+            device_id,
+            sensor_id: 6, // Relay is always 6 in our industrial profile
+            raw_value: relay_state,
+            timestamp_us: now_us(),
+            sequence_number: 0,
+            sensor_type: SensorType::Relay.as_u8(),
+        };
+        upsert_reading(&mut registry, &mut commands, &mut q, msg);
+    }
+}
+
 
 /// Per-sensor digital-twin transform. Pulls each entity's latest
 /// `RawSensorData` into a sliding-window mean (`SmoothedValue`), and emits