Added a very basic PlayerSystem, and a PlayerComponent.

src/Game/PlayerSystem.cpp

@@ -0,0 +1,49 @@
+#include "PlayerSystem.h"
+
+void PlayerSystem::Initialize()
+{
+	EVENT_SUBSCRIBE_MEMBER(m_EKeyDown, &PlayerSystem::OnKeyDown);
+	EVENT_SUBSCRIBE_MEMBER(m_EKeyUp, &PlayerSystem::OnKeyUp);
+}
+
+void PlayerSystem::Update(World * world, ComponentWrapper & player, double dt)
+{
+	m_EventBroker->Process<PlayerSystem>();
+	ComponentWrapper& transform = world->GetComponent(player.EntityID, "Transform");
+	(glm::vec3&)player["Velocity"] = m_Speed * float(dt) * m_Direction;
+	(glm::vec3&)transform["Position"] += (glm::vec3)player["Velocity"];
+}
+
+bool PlayerSystem::OnKeyDown(const Events::KeyDown & event)
+{
+	if (event.KeyCode == GLFW_KEY_P) {
+		m_Direction.z == -1;
+	}
+	if (event.KeyCode == GLFW_KEY_LEFT) {
+		m_Direction.x == -1;
+	}
+	if (event.KeyCode == GLFW_KEY_DOWN) {
+		m_Direction.z == 1;
+	}
+	if (event.KeyCode == GLFW_KEY_RIGHT) {
+		m_Direction.x == 1;
+	}
+	return true;
+}
+
+bool PlayerSystem::OnKeyUp(const Events::KeyUp & event)
+{
+	if (event.KeyCode == GLFW_KEY_UP) {
+		m_Direction.z == 0;
+	}
+	if (event.KeyCode == GLFW_KEY_LEFT) {
+		m_Direction.x == 0;
+	}
+	if (event.KeyCode == GLFW_KEY_DOWN) {
+		m_Direction.z == 0;
+	}
+	if (event.KeyCode == GLFW_KEY_RIGHT) {
+		m_Direction.x == 0;
+	}
+	return false;
+}