diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a3da03b..c736ea41 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,6 +74,8 @@ set(SOURCES
 	sources/System/Collision/CollisionSystem.cpp
 	sources/Component/IAControllable/IAControllableComponent.hpp
 	sources/Component/IAControllable/IAControllableComponent.cpp
+	sources/System/IAControllable/IAControllableSystem.hpp
+	sources/System/IAControllable/IAControllableSystem.cpp
 )
 
 add_executable(bomberman
diff --git a/ai_scripts/john.lua b/ai_scripts/john.lua
index a58b3496..3c74b31d 100644
--- a/ai_scripts/john.lua
+++ b/ai_scripts/john.lua
@@ -1,3 +1,7 @@
 function sum(a,b)
 	return a + b;
 end
+
+function update()
+	return 1;
+end
\ No newline at end of file
diff --git a/sources/Runner/Runner.cpp b/sources/Runner/Runner.cpp
index 73ff735c..835d6c2f 100644
--- a/sources/Runner/Runner.cpp
+++ b/sources/Runner/Runner.cpp
@@ -30,6 +30,7 @@
 #include "Component/Animation/AnimationsComponent.hpp"
 #include "System/Animation/AnimationsSystem.hpp"
 #include "Map/Map.hpp"
+#include "System/IAControllable/IAControllableSystem.hpp"
 
 namespace RAY2D = RAY::Drawables::Drawables2D;
 namespace RAY3D = RAY::Drawables::Drawables3D;
@@ -50,6 +51,7 @@ namespace BBM
 	{
 		wal.addSystem<KeyboardSystem>()
 			.addSystem<GamepadSystem>()
+			.addSystem<IAControllableSystem>()
 			.addSystem<ControllableSystem>()
 			.addSystem<CollisionSystem>(wal)
 			.addSystem<MovableSystem>();
diff --git a/sources/System/IAControllable/IAControllableSystem.cpp b/sources/System/IAControllable/IAControllableSystem.cpp
new file mode 100644
index 00000000..f020504d
--- /dev/null
+++ b/sources/System/IAControllable/IAControllableSystem.cpp
@@ -0,0 +1,33 @@
+//
+// Created by Louis Auzuret on 06/07/21
+//
+
+#include "Component/Controllable/ControllableComponent.hpp"
+#include "Component/IAControllable/IAControllableComponent.hpp"
+#include "System/IAControllable/IAControllableSystem.hpp"
+
+namespace BBM
+{
+	IAControllableSystem::IAControllableSystem()
+	: WAL::System({	typeid(IAControllableComponent),
+					typeid(ControllableComponent)})
+	{ }
+
+	void IAControllableSystem::onFixedUpdate(WAL::Entity &entity)
+	{
+		auto &ia = entity.getComponent<IAControllableComponent>();
+		auto &controllable = entity.getComponent<ControllableComponent>();
+
+		lua_getglobal(ia.state, "update");
+		//push parameters
+		int nbParams = 0;
+		int nbReturn = 1;
+		lua_pcall(ia.state, nbParams, nbReturn, 0);
+		if (lua_isnil(ia.state, -1))
+			return;
+		if (!lua_isnumber(ia.state, -1))
+			return;
+		controllable.move.y = lua_tonumber(ia.state, -1);
+		lua_pop(ia.state, 1);
+	}
+}
\ No newline at end of file
diff --git a/sources/System/IAControllable/IAControllableSystem.hpp b/sources/System/IAControllable/IAControllableSystem.hpp
new file mode 100644
index 00000000..8528c01d
--- /dev/null
+++ b/sources/System/IAControllable/IAControllableSystem.hpp
@@ -0,0 +1,27 @@
+//
+// Created by Louis Auzuret on 06/07/21
+//
+
+#pragma once
+
+#include "System/System.hpp"
+
+namespace BBM
+{
+	//! @brief A system to handle keyboard entities.
+	class IAControllableSystem : public WAL::System
+	{
+	public:
+		//! @inherit
+		void onFixedUpdate(WAL::Entity &entity) override;
+
+		//! @brief A default constructor
+		IAControllableSystem();
+		//! @brief A keyboard system is copy constructable
+		IAControllableSystem(const IAControllableSystem &) = default;
+		//! @brief A default destructor
+		~IAControllableSystem() override = default;
+		//! @brief A keyboard system is assignable.
+		IAControllableSystem &operator=(const IAControllableSystem &) = default;
+	};
+}