7 files changed, 71 insertions, 37 deletions
diff --git a/sim/CMakeLists.txt b/sim/CMakeLists.txt
index f3d5494..ff2621c 100644
--- a/sim/CMakeLists.txt
+++ b/sim/CMakeLists.txt
@@ -4,6 +4,7 @@ add_library(
 	src/BaseBattle.cpp
 	src/Battle.cpp
 	src/Builder.cpp
+	src/FloatingMovement.cpp
 	src/Point.cpp
 	src/RandomSpawner.cpp
 	src/TeamManager.cpp
diff --git a/sim/include/kurator/sim/FloatingMovement.h b/sim/include/kurator/sim/FloatingMovement.h
new file mode 100644
index 0000000..352377d
--- /dev/null
+++ b/sim/include/kurator/sim/FloatingMovement.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <entt/entity/registry.hpp>
+#include <entt/signal/dispatcher.hpp>
+
+#include "Point.h"
+
+
+namespace kurator
+{
+namespace sim
+{
+
+
+struct FloatingMovement
+{
+	double max_speed;
+	double acceleration;
+	double deceleration;
+	double destination_boundary = 100.0;
+	Point speed = {0.0, 0.0};
+	static void update(entt::registry& registry, entt::dispatcher& dispatcher, float dt);
+};
+
+
+}  // namespace sim
+}  // namespace kurator
diff --git a/sim/include/kurator/sim/components.h b/sim/include/kurator/sim/components.h
index 6fbab55..47ff5b2 100644
--- a/sim/include/kurator/sim/components.h
+++ b/sim/include/kurator/sim/components.h
@@ -33,16 +33,6 @@ struct AIState
 };
 
 
-struct FloatingMovement
-{
-	double max_speed;
-	double acceleration;
-	double deceleration;
-	double destination_boundary;
-	Point speed = {0.0, 0.0};
-};
-
-
 struct HitPoints
 {
 	double health;
diff --git a/sim/src/BaseBattle.cpp b/sim/src/BaseBattle.cpp
index 4b65139..99c1b99 100644
--- a/sim/src/BaseBattle.cpp
+++ b/sim/src/BaseBattle.cpp
@@ -7,6 +7,7 @@
 #include <kurator/campaign/UniqueIdentifier.h>
 #include <kurator/sim/components.h>
 #include <kurator/sim/events.h>
+#include <kurator/sim/FloatingMovement.h>
 #include <kurator/stats/events.h>
 #include <kurator/universe.h>
 
@@ -56,7 +57,7 @@ BaseBattle::update(const float dt)
 	time += dt;
 	pick_random_targets();
 	keep_at_range();
-	floating_movement(dt);
+	FloatingMovement::update(_registry, _dispatcher, dt);
 	turrets(dt);
 	kill_off_dead();
 	manager.clear(_registry);  // registry supports on destructions events
@@ -90,29 +91,6 @@ BaseBattle::keep_at_range()
 
 
 void
-BaseBattle::floating_movement(const float dt)
-{
-	auto view = _registry.view<Transform, FloatingMovement, AIState>();
-	for (auto&& [entity, transform, movement, ai] : view.each()) {
-		const auto offset = ai.destination - transform.position;
-		const auto at_destination = offset.magnitude() > movement.destination_boundary;
-		const auto acceleration =
-			at_destination ?
-			offset.normalized().scale(movement.acceleration * dt) :
-			offset.normalized().scale(-1 * movement.deceleration * dt);
-		movement.speed.x += acceleration.x;
-		movement.speed.y += acceleration.y;
-		if (movement.speed.magnitude() > movement.max_speed)
-			movement.speed = movement.speed.normalized().scale(movement.max_speed);
-		const auto speed = movement.speed.scale(dt);
-		transform.position.x += speed.x;
-		transform.position.y += speed.y;
-		transform.angle = speed.angle();
-	}
-}
-
-
-void
 BaseBattle::turrets(const float dt)
 {
 	auto view = _registry.view<TurretControl, universe::TurretType>();
diff --git a/sim/src/BaseBattle.h b/sim/src/BaseBattle.h
index d2f7d19..3c19b9c 100644
--- a/sim/src/BaseBattle.h
+++ b/sim/src/BaseBattle.h
@@ -31,7 +31,6 @@ private:
 	TeamManager manager;
 	void pick_random_targets();
 	void keep_at_range();
-	void floating_movement(float dt);
 	void turrets(float dt);
 	void kill_off_dead();
 };
diff --git a/sim/src/Builder.cpp b/sim/src/Builder.cpp
index a5319fd..e0198a1 100644
--- a/sim/src/Builder.cpp
+++ b/sim/src/Builder.cpp
@@ -3,6 +3,7 @@
 #include <entt/entity/registry.hpp>
 
 #include <kurator/sim/components.h>
+#include <kurator/sim/FloatingMovement.h>
 #include <kurator/sim/Point.h>
 #include <kurator/universe/ShipType.h>
 #include <kurator/universe/TurretType.h>
@@ -34,8 +35,7 @@ Builder::operator()(const universe::ShipType& ship_type, const int team) const
 		entity,
 		ship_type.max_speed,
 		ship_type.max_speed * 2.0,
-		ship_type.max_speed * 3.0,
-		100.0);
+		ship_type.max_speed * 3.0);
 	registry.emplace<AIState>(entity, 6000.0, Point{0.0, 0.0});
 	registry.emplace<HitPoints>(entity, ship_type.base_health_points);
 	return entity;
diff --git a/sim/src/FloatingMovement.cpp b/sim/src/FloatingMovement.cpp
new file mode 100644
index 0000000..e1794d5
--- /dev/null
+++ b/sim/src/FloatingMovement.cpp
@@ -0,0 +1,39 @@
+#include <kurator/sim/FloatingMovement.h>
+
+#include <entt/entity/registry.hpp>
+#include <entt/signal/dispatcher.hpp>
+
+#include <kurator/sim/components.h>
+
+
+namespace kurator
+{
+namespace sim
+{
+
+
+void
+FloatingMovement::update(entt::registry& registry, entt::dispatcher&, const float dt)
+{
+	auto view = registry.view<Transform, FloatingMovement, AIState>();
+	for (auto&& [entity, transform, movement, ai] : view.each()) {
+		const auto offset = ai.destination - transform.position;
+		const auto at_destination = offset.magnitude() > movement.destination_boundary;
+		const auto acceleration =
+			at_destination ?
+			offset.normalized().scale(movement.acceleration * dt) :
+			offset.normalized().scale(-1 * movement.deceleration * dt);
+		movement.speed.x += acceleration.x;
+		movement.speed.y += acceleration.y;
+		if (movement.speed.magnitude() > movement.max_speed)
+			movement.speed = movement.speed.normalized().scale(movement.max_speed);
+		const auto speed = movement.speed.scale(dt);
+		transform.position.x += speed.x;
+		transform.position.y += speed.y;
+		transform.angle = speed.angle();
+	}
+}
+
+
+}  // namespace sim
+}  // namespace kurator