Merge remote-tracking branch 'origin/master' into WeaponSystem

# Conflicts:
#	include/Engine/Collision/FillFrustumOctreeSystem.h
#	include/Engine/Core/Octree.h
#	include/Engine/Rendering/RenderSystem.h
#	include/Game/Game.h
#	resources/DefaultInput.ini
#	resources/Schema/Components.xsd
#	resources/Schema/Entities/Player.xml
#	resources/Schema/Types/Entity.xsd
#	src/Engine/Rendering/RenderSystem.cpp
#	src/Game/Game.cpp
#	src/Game/Systems/PlayerMovementSystem.cpp

include/Game/Systems/PlayerMovementSystem.h

@@ -4,6 +4,8 @@
 #include "Core/EPlayerSpawned.h"
 #include "Input/FirstPersonInputController.h"
 #include <imgui/imgui.h>
+#include "Events/EDoubleJump.h"
+#include "../Engine/Sound/EPlaySoundOnEntity.h"
 
 class PlayerMovementSystem : public ImpureSystem
 {
@@ -17,6 +19,19 @@ private:
     // State
     std::unordered_map<EntityWrapper, FirstPersonInputController<PlayerMovementSystem>*> m_PlayerInputControllers;
 
+    EntityWrapper m_LocalPlayer = EntityWrapper::Invalid;
+    // Walking logic
+    // Keeps track of how far the player has walked within this "key press session".
+    float m_DistanceMoved = 0.0f;
+    // How far a step is (How often the step sound will be played).
+    const float m_PlayerStepLength = 1.75f;
+    // Determine what sound file to play.
+    bool m_LeftFoot = false;
+    // To get a difference when calculating the walking state.
+    glm::vec3 m_LastPosition = glm::vec3();
+    // The logic for making the sound play when player is moving
+    void playerStep(double dt);
+
     EventRelay<PlayerMovementSystem, Events::PlayerSpawned> m_EPlayerSpawned;
     bool OnPlayerSpawned(Events::PlayerSpawned& e);