initial import, >900commits predate this

systems/player_velocity/src/mm/systems/player_velocity2d_system.cpp

@@ -0,0 +1,35 @@
+#include "./player_velocity2d_system.hpp"
+
+#include <entt/entity/registry.hpp>
+
+#include <mm/components/velocity2d.hpp>
+
+#include <mm/services/input_service.hpp>
+
+#include <tracy/Tracy.hpp>
+
+namespace MM::Systems {
+	void PlayerVelocity2D(Scene& scene, float) {
+		ZoneScopedN("MM::Systems::PlayerVelocity2D");
+
+		MM::Engine* engine_ptr = scene.ctx<MM::Engine*>();
+		auto& input_ss = engine_ptr->getService<MM::Services::InputService>();
+
+		scene.view<MM::Input::PlayerID, MM::Components::Velocity2D>().each(
+			[&input_ss](const MM::Input::PlayerID p_id, MM::Components::Velocity2D& v) {
+				//const float movement_speed = 8.f; // apply via post processing
+
+				auto vec_force = input_ss.getMoveForce(p_id);
+
+				if (vec_force >= 0.01f) {
+					v.velocity = input_ss.getMoveVec(p_id);
+					v.velocity *= vec_force;
+					//v.velocity *= movement_speed;
+				} else {
+					v.velocity = {0.f, 0.f};
+				}
+			}
+		);
+	}
+}
+

systems/player_velocity/src/mm/systems/player_velocity2d_system.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+//#include <mm/services/scene_service_interface.hpp>
+#include <mm/engine_fwd.hpp>
+
+namespace MM::Systems {
+
+	// this system transforms the input from the input_ss into velocity
+	// uses Components::Velocity2D, PlayerID
+	void PlayerVelocity2D(Scene& scene, float delta);
+
+} // MM::Systems
+