adding a RectangleDrawable2DComponent and moving files

sources/System/Movable/MovableSystem.cpp

@@ -0,0 +1,28 @@
+//
+// Created by Zoe Roux on 5/17/21.
+//
+
+#include "Component/Position/PositionComponent.hpp"
+#include "System/Movable/MovableSystem.hpp"
+#include "Component/Movable/MovableComponent.hpp"
+#include "Wal.hpp"
+
+namespace WAL
+{
+	MovableSystem::MovableSystem()
+		: System({
+			typeid(MovableComponent),
+			typeid(PositionComponent)
+		})
+	{}
+
+	void MovableSystem::onFixedUpdate(Entity &entity)
+	{
+		auto &movable = entity.getComponent<MovableComponent>();
+		auto &position = entity.getComponent<PositionComponent>();
+
+		position.position += movable._velocity * Wal::timestep.count();
+		movable._velocity = movable._acceleration * Wal::timestep.count();
+		movable._acceleration = Vector3f();
+	}
+}