Merge branch 'main' into PlayerController

SHADE_Engine/src/Editor/EditorWindow/HierarchyPanel/SHHierarchyPanel.cpp

@@ -195,18 +195,22 @@ namespace SHADE
     if (SHDragDrop::BeginSource())
     {
       std::string moveLabel = "Moving EID: ";
+      static std::vector<EntityID> draggingEntities = editor->selectedEntities;
       if (!isSelected)
-        editor->selectedEntities.push_back(eid);
-      for (int i = 0; i < static_cast<int>(editor->selectedEntities.size()); ++i)
       {
-        moveLabel.append(std::to_string(editor->selectedEntities[i]));
+        draggingEntities.clear();
-        if (i + 1 < static_cast<int>(editor->selectedEntities.size()))
+        draggingEntities.push_back(eid);
+      }
+      for (int i = 0; i < static_cast<int>(draggingEntities.size()); ++i)
+      {
+        moveLabel.append(std::to_string(draggingEntities[i]));
+        if (i + 1 < static_cast<int>(draggingEntities.size()))
         {
           moveLabel.append(", ");
         }
       }
       ImGui::Text(moveLabel.c_str());
-      SHDragDrop::SetPayload<std::vector<EntityID>>(SHDragDrop::DRAG_EID, &editor->selectedEntities);
+      SHDragDrop::SetPayload<std::vector<EntityID>>(SHDragDrop::DRAG_EID, &draggingEntities);
       SHDragDrop::EndSource();
     }
     else if (SHDragDrop::BeginTarget()) //If Received DragDrop

SHADE_Engine/src/Editor/EditorWindow/Inspector/SHEditorComponentView.hpp

@@ -274,8 +274,27 @@ namespace SHADE
 
         }
         {
-          SHEditorWidgets::BeginPanel("Offset", { ImGui::GetContentRegionAvail().x, 30.0f });
+          SHEditorWidgets::BeginPanel("Offsets",{ ImGui::GetContentRegionAvail().x, 30.0f });
           SHEditorWidgets::DragVec3("Position", { "X", "Y", "Z" }, [&collider] {return collider->GetPositionOffset(); }, [&collider](SHVec3 const& vec) {collider->SetPositionOffset(vec); });
+          SHEditorWidgets::DragVec3("Rotation", { "X", "Y", "Z" }, 
+          [&collider]
+          {
+            auto offset = collider->GetRotationOffset();
+            offset.x = SHMath::RadiansToDegrees(offset.x);
+            offset.y = SHMath::RadiansToDegrees(offset.y);
+            offset.z = SHMath::RadiansToDegrees(offset.z);
+            return offset;
+          }, 
+          [&collider](SHVec3 const& vec)
+          {
+            const SHVec3 vecInRad
+            {
+              SHMath::DegreesToRadians(vec.x)
+            , SHMath::DegreesToRadians(vec.y)
+            , SHMath::DegreesToRadians(vec.z)
+            };
+            collider->SetRotationOffset(vecInRad);
+          });
           SHEditorWidgets::EndPanel();
         }
         if (ImGui::Button(std::format("{} Remove Collider #{}", ICON_MD_REMOVE, i).data()))
@@ -358,6 +377,7 @@ namespace SHADE
         [component](AssetID const& id)
         {
           component->SetMesh(SHResourceManager::LoadOrGet<SHMesh>(id));
+          SHResourceManager::FinaliseChanges();
         }, SHDragDrop::DRAG_RESOURCE);
     }
     else

SHADE_Engine/src/Editor/EditorWindow/MenuBar/SHEditorMenuBar.cpp

@@ -175,19 +175,37 @@ namespace SHADE
       ImGui::BeginDisabled(editor->editorState == SHEditor::State::PLAY);
       if(ImGui::SmallButton(ICON_MD_PLAY_ARROW))
       {
+        const SHEditorStateChangeEvent STATE_CHANGE_EVENT
+        {
+          .previousState  = editor->editorState
+        };
         editor->editorState = SHEditor::State::PLAY;
+
+        SHEventManager::BroadcastEvent<SHEditorStateChangeEvent>(STATE_CHANGE_EVENT, SH_EDITOR_ON_PLAY_EVENT);
       }
       ImGui::EndDisabled();
       ImGui::BeginDisabled(editor->editorState == SHEditor::State::PAUSE);
       if(ImGui::SmallButton(ICON_MD_PAUSE))
       {
+        const SHEditorStateChangeEvent STATE_CHANGE_EVENT
+        {
+          .previousState  = editor->editorState
+        };
         editor->editorState = SHEditor::State::PAUSE;
+
+        SHEventManager::BroadcastEvent<SHEditorStateChangeEvent>(STATE_CHANGE_EVENT, SH_EDITOR_ON_PAUSE_EVENT);
       }
       ImGui::EndDisabled();
       ImGui::BeginDisabled(editor->editorState == SHEditor::State::STOP);
       if(ImGui::SmallButton(ICON_MD_STOP))
       {
+        const SHEditorStateChangeEvent STATE_CHANGE_EVENT
+        {
+          .previousState  = editor->editorState
+        };
         editor->editorState = SHEditor::State::STOP;
+
+        SHEventManager::BroadcastEvent<SHEditorStateChangeEvent>(STATE_CHANGE_EVENT, SH_EDITOR_ON_STOP_EVENT);
       }
       ImGui::EndDisabled();
       ImGui::EndMenuBar();

SHADE_Engine/src/Editor/EditorWindow/MenuBar/SHEditorMenuBar.h

@@ -20,4 +20,10 @@ namespace SHADE
     float menuBarHeight = 20.0f;
     std::vector<std::filesystem::path> layoutPaths;
   };//class SHEditorMenuBar
+
+  struct SHEditorStateChangeEvent
+  {
+    SHEditor::State previousState;
+  };
+
 }//namespace SHADE

SHADE_Engine/src/Editor/SHEditorUI.cpp

@@ -16,6 +16,7 @@ of DigiPen Institute of Technology is prohibited.
 // External Dependencies
 #include <imgui.h>
 #include "SHEditorWidgets.hpp"
+#include "ECS_Base/Managers/SHEntityManager.h"
 
 namespace SHADE
 {
@@ -287,6 +288,35 @@ namespace SHADE
     return CHANGED;
   }
 
+  bool SHEditorUI::InputGameObjectField(const std::string& label, uint32_t& value, bool* isHovered)
+  {
+    ImGui::Text(label.c_str());
+    if (isHovered)
+      *isHovered = ImGui::IsItemHovered();
+    ImGui::SameLine();
+    SHEntity* entity = SHEntityManager::GetEntityByID(value);
+    std::ostringstream oss;
+    if (entity)
+    {
+      oss << value << ": " << entity->name;
+    }
+    std::string entityName = oss.str();
+    bool changed = ImGui::InputText("##", &entityName, ImGuiInputTextFlags_ReadOnly);
+    if (SHDragDrop::BeginTarget())
+    {
+      if (const std::vector<EntityID>* payload = SHDragDrop::AcceptPayload<std::vector<EntityID>>(SHDragDrop::DRAG_EID))
+      {
+        if (!payload->empty())
+        {
+          value = payload->at(0);
+          changed = true;
+        }
+        SHDragDrop::EndTarget();
+      }
+    }
+    return changed;
+  }
+
   bool SHEditorUI::InputEnumCombo(const std::string& label, int& v, const std::vector<std::string>& enumNames, bool* isHovered)
   {
     // Clamp input value

SHADE_Engine/src/Editor/SHEditorUI.h

@@ -308,6 +308,14 @@ namespace SHADE
     /// <returns>True if the value was changed.</returns>
     static bool InputTextField(const std::string& label, std::string& value, bool* isHovered = nullptr);
     /// <summary>
+    /// Creates a drag field widget for int input.
+    /// </summary>
+    /// <param name="label">Label used to identify this widget.</param>
+    /// <param name="value">Reference to the variable to store the result.</param>
+    /// <param name="isHovered>If set, stores the hover state of this widget.</param>
+    /// <returns>True if the value was changed.</returns>
+    static bool InputGameObjectField(const std::string& label, uint32_t& value, bool* isHovered = nullptr);
+    /// <summary>
     /// Creates a combo box for enumeration input.
     /// </summary>
     /// <typeparam name="Enum">The type of enum to input.</typeparam>

SHADE_Engine/src/Events/SHEventDefines.h

@@ -13,4 +13,7 @@ constexpr SHEventIdentifier SH_COMPONENT_REMOVED_EVENT        { 4 };
 constexpr SHEventIdentifier SH_SCENEGRAPH_CHANGE_PARENT_EVENT { 5 };
 constexpr SHEventIdentifier SH_PHYSICS_COLLIDER_ADDED_EVENT   { 6 };
 constexpr SHEventIdentifier SH_PHYSICS_COLLIDER_REMOVED_EVENT { 7 };
+constexpr SHEventIdentifier SH_EDITOR_ON_PLAY_EVENT           { 8 };
+constexpr SHEventIdentifier SH_EDITOR_ON_PAUSE_EVENT          { 9 };
+constexpr SHEventIdentifier SH_EDITOR_ON_STOP_EVENT           { 10 };
 

SHADE_Engine/src/Graphics/MiddleEnd/Batching/SHBatch.cpp

@@ -74,10 +74,11 @@ namespace SHADE
 
   void SHBatch::Remove(const SHRenderable* renderable)
   {
-    // Check if we have a SubBatch with the same mesh yet
+    // Check if we have a SubBatch with the existing mesh yet (if changed, we use the old mesh)
+    Handle<SHMesh> prevSubBatchMesh = renderable->HasMeshChanged() ? renderable->GetPrevMesh() : renderable->GetMesh();
     auto subBatch = std::find_if(subBatches.begin(), subBatches.end(), [&](const SHSubBatch& batch)
     {
-        return batch.Mesh == renderable->GetMesh();
+      return batch.Mesh == prevSubBatchMesh;
     });
 
     // Attempt to remove if it exists
@@ -88,9 +89,7 @@ namespace SHADE
 
     // Check if other renderables in subBatches contain the same material instance
     bool matUnused = true;
-
     Handle<SHMaterialInstance> matToCheck = renderable->HasMaterialChanged() ? renderable->GetPrevMaterial() : renderable->GetMaterial();
-
     for (const auto& sb : subBatches)
     {
       // Check material usage

SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp

@@ -106,10 +106,7 @@ namespace SHADE
     descPool = device->CreateDescriptorPools();
 
     // Create generic command buffer
-    //transferCmdPool = device->CreateCommandPool(SH_QUEUE_FAMILY_ARRAY_INDEX::GRAPHICS, SH_CMD_POOL_RESET::POOL_BASED, true);
     graphicsCmdPool = device->CreateCommandPool(SH_QUEUE_FAMILY_ARRAY_INDEX::GRAPHICS, SH_CMD_POOL_RESET::POOL_BASED, true);
-    transferCmdBuffer = graphicsCmdPool->RequestCommandBuffer(SH_CMD_BUFFER_TYPE::PRIMARY);
-    graphicsTexCmdBuffer = graphicsCmdPool->RequestCommandBuffer(SH_CMD_BUFFER_TYPE::PRIMARY);
 
     // Load Built In Shaders
     static constexpr AssetID VS_DEFAULT   = 39210065; defaultVertShader       = SHResourceManager::LoadOrGet<SHVkShaderModule>(VS_DEFAULT);
@@ -621,10 +618,14 @@ namespace SHADE
 
   void SHGraphicsSystem::BuildMeshBuffers()
   {
+      transferCmdBuffer = graphicsCmdPool->RequestCommandBuffer(SH_CMD_BUFFER_TYPE::PRIMARY);
+      device->WaitIdle();
 	  transferCmdBuffer->BeginRecording();
 	  meshLibrary.BuildBuffers(device, transferCmdBuffer);
 	  transferCmdBuffer->EndRecording();
 	  graphicsQueue->SubmitCommandBuffer({ transferCmdBuffer });
+      device->WaitIdle();
+      transferCmdBuffer.Free(); transferCmdBuffer = {};
   }
 
   /*---------------------------------------------------------------------------------*/
@@ -649,10 +650,14 @@ namespace SHADE
 
   void SHGraphicsSystem::BuildTextures()
   {
+      graphicsTexCmdBuffer = graphicsCmdPool->RequestCommandBuffer(SH_CMD_BUFFER_TYPE::PRIMARY);
+      device->WaitIdle();
       texLibrary.BuildTextures
       (
           device, graphicsTexCmdBuffer, graphicsQueue, descPool
       );
+      device->WaitIdle();
+      graphicsTexCmdBuffer.Free(); graphicsTexCmdBuffer = {};
   }
 
 #pragma endregion ADD_REMOVE
@@ -692,6 +697,7 @@ namespace SHADE
   void SHGraphicsSystem::EndRoutine::Execute(double) noexcept
   {
     reinterpret_cast<SHGraphicsSystem*>(system)->EndRender();
+    SHResourceManager::FinaliseChanges();
   }
   
   /*-----------------------------------------------------------------------------------*/
@@ -709,8 +715,13 @@ namespace SHADE
       if (!renderable.HasChanged())
         continue;
     
-      // Remove from old material's SuperBatch
+      if (!renderable.GetMesh())
-      Handle<SHMaterialInstance> prevMaterial = renderable.GetPrevMaterial();
+      {
+        SHLOG_CRITICAL("NULL Mesh provided!");
+      }
+
+      // Remove from the SuperBatch it is previously in (prevMat if mat has changed)
+      Handle<SHMaterialInstance> prevMaterial = renderable.HasMaterialChanged() ? renderable.GetPrevMaterial() : renderable.GetMaterial();
       if (prevMaterial)
       {
         Handle<SHSuperBatch> oldSuperBatch = prevMaterial->GetBaseMaterial()->GetPipeline()->GetPipelineState().GetSubpass()->GetSuperBatch();

SHADE_Engine/src/Math/Transform/SHTransformComponent.cpp

@@ -186,6 +186,6 @@ RTTR_REGISTRATION
 
   registration::class_<SHTransformComponent>("Transform Component")
     .property("Translate" ,&SHTransformComponent::GetLocalPosition  ,&SHTransformComponent::SetLocalPosition                                      ) (metadata(META::tooltip, "Translate"))
-    .property("Rotate"           ,&SHTransformComponent::GetLocalRotation        ,select_overload<void(const SHVec3&)>(&SHTransformComponent::SetLocalRotation) )     (metadata(META::tooltip, "Rotate"), metadata(META::angleInRad, true))
+    .property("Rotate"    ,&SHTransformComponent::GetLocalRotation  ,select_overload<void(const SHVec3&)>(&SHTransformComponent::SetLocalRotation)) (metadata(META::tooltip, "Rotate"), metadata(META::angleInRad, true))
     .property("Scale"     ,&SHTransformComponent::GetLocalScale     ,&SHTransformComponent::SetLocalScale                                         ) (metadata(META::tooltip, "Scale"));
 }

SHADE_Engine/src/Physics/SHCollider.cpp

@@ -17,6 +17,7 @@
 #include "Math/Geometry/SHBoundingSphere.h"
 #include "Math/Transform/SHTransformComponent.h"
 #include "Math/SHMathHelpers.h"
+#include "Reflection/SHReflectionMetadata.h"
 
 namespace SHADE
 {
@@ -158,6 +159,11 @@ namespace SHADE
     return positionOffset;
   }
 
+  const SHVec3& SHCollider::GetRotationOffset() const noexcept
+  {
+    return rotationOffset;
+  }
+
   SHShape* SHCollider::GetShape() noexcept
   {
     dirty = true;
@@ -275,6 +281,12 @@ namespace SHADE
     }
   }
 
+  void SHCollider::SetRotationOffset(const SHVec3& rotOffset) noexcept
+  {
+    dirty = true;
+    rotationOffset = rotOffset;
+  }
+
   /*-----------------------------------------------------------------------------------*/
   /* Private Function Member Definitions                                               */
   /*-----------------------------------------------------------------------------------*/
@@ -316,5 +328,6 @@ RTTR_REGISTRATION
   );
 
   registration::class_<SHCollider>("Collider")
-    .property("Position Offset", &SHCollider::GetPositionOffset, &SHCollider::SetPositionOffset);
+    .property("Position Offset", &SHCollider::GetPositionOffset, &SHCollider::SetPositionOffset)
+    .property("Rotation Offset", &SHCollider::GetRotationOffset, &SHCollider::SetRotationOffset) (metadata(META::angleInRad, true));
 }

SHADE_Engine/src/Physics/SHCollider.h

@@ -80,6 +80,7 @@ namespace SHADE
     [[nodiscard]] const SHPhysicsMaterial&  GetMaterial       ()  const noexcept;
 
     [[nodiscard]] const SHVec3&             GetPositionOffset ()  const noexcept;
+    [[nodiscard]] const SHVec3&             GetRotationOffset ()  const noexcept;
 
     [[nodiscard]] SHShape*                  GetShape          ()  noexcept;
 
@@ -97,6 +98,7 @@ namespace SHADE
     void    SetMaterial         (const SHPhysicsMaterial& newMaterial)  noexcept;
 
     void    SetPositionOffset   (const SHVec3& posOffset) noexcept;
+    void    SetRotationOffset   (const SHVec3& rotOffset) noexcept;
 
   private:
     /*---------------------------------------------------------------------------------*/
@@ -110,6 +112,7 @@ namespace SHADE
     SHShape*          shape;
     SHPhysicsMaterial material;
     SHVec3            positionOffset;
+    SHVec3            rotationOffset;
 
     /*---------------------------------------------------------------------------------*/
     /* Function Members                                                                */

SHADE_Engine/src/Physics/SHPhysicsObject.cpp

@@ -130,6 +130,8 @@ namespace SHADE
 
   int SHPhysicsObject::AddCollider(SHCollider* collider)
   {
+    const rp3d::Transform OFFSETS{ collider->GetPositionOffset(), collider->GetRotationOffset() };
+
     switch (collider->GetType())
     {
       case SHCollider::Type::BOX:
@@ -137,7 +139,7 @@ namespace SHADE
         const auto* box = reinterpret_cast<SHBoundingBox*>(collider->GetShape());
         rp3d::BoxShape* newBox = factory->createBoxShape(box->GetHalfExtents());
 
-        rp3dBody->addCollider(newBox, rp3d::Transform{ collider->GetPositionOffset(), SHQuaternion::Identity });
+        rp3dBody->addCollider(newBox, OFFSETS);
         break;
       }
       case SHCollider::Type::SPHERE:
@@ -145,7 +147,7 @@ namespace SHADE
         const auto* sphere = reinterpret_cast<SHBoundingSphere*>(collider->GetShape());
         rp3d::SphereShape* newSphere = factory->createSphereShape(sphere->GetRadius());
 
-        rp3dBody->addCollider(newSphere, rp3d::Transform{ collider->GetPositionOffset(), SHQuaternion::Identity });
+        rp3dBody->addCollider(newSphere, OFFSETS);
         break;
       }
       // TODO(Diren): Add more collider shapes
@@ -182,7 +184,7 @@ namespace SHADE
       rp3dCollider->setIsTrigger(collider.IsTrigger());
 
       // Update offsets
-      rp3dCollider->setLocalToBodyTransform(rp3d::Transform(collider.GetPositionOffset(), SHQuaternion::Identity));
+      rp3dCollider->setLocalToBodyTransform(rp3d::Transform(collider.GetPositionOffset(), collider.GetRotationOffset()));
 
       switch (collider.GetType())
       {

SHADE_Engine/src/Physics/SHPhysicsSystem.cpp

@@ -17,7 +17,6 @@
 #include "ECS_Base/Managers/SHComponentManager.h"
 #include "ECS_Base/Managers/SHEntityManager.h"
 #include "ECS_Base/Managers/SHSystemManager.h"
-#include "Editor/SHEditor.h"
 #include "Math/SHMathHelpers.h"
 #include "Math/Transform/SHTransformComponent.h"
 #include "Scene/SHSceneManager.h"
@@ -212,6 +211,12 @@ namespace SHADE
     const std::shared_ptr REMOVE_COMPONENT_RECEIVER { std::make_shared<SHEventReceiverSpec<SHPhysicsSystem>>(this, &SHPhysicsSystem::RemovePhysicsComponent) };
     const ReceiverPtr REMOVE_COMPONENT_RECEIVER_PTR = std::dynamic_pointer_cast<SHEventReceiver>(REMOVE_COMPONENT_RECEIVER);
     SHEventManager::SubscribeTo(SH_COMPONENT_REMOVED_EVENT, REMOVE_COMPONENT_RECEIVER_PTR);
+
+    #ifdef SHEDITOR
+        const std::shared_ptr EDITOR_STOP_RECEIVER { std::make_shared<SHEventReceiverSpec<SHPhysicsSystem>>(this, &SHPhysicsSystem::ResetWorld) };
+        const ReceiverPtr EDITOR_STOP_RECEIVER_PTR = std::dynamic_pointer_cast<SHEventReceiver>(EDITOR_STOP_RECEIVER);
+        SHEventManager::SubscribeTo(SH_EDITOR_ON_STOP_EVENT, EDITOR_STOP_RECEIVER_PTR);
+    #endif
   }
 
   void SHPhysicsSystem::Exit()
@@ -289,16 +294,6 @@ namespace SHADE
 
       if (rigidBodyComponent)
       {
-        // Clear all forces and velocities if editor is stopped
-        if (SHSystemManager::GetSystem<SHEditor>()->editorState == SHEditor::State::STOP)
-        {
-          auto* rp3dRigidBody = reinterpret_cast<rp3d::RigidBody*>(physicsObject.rp3dBody);
-          rp3dRigidBody->resetForce();
-          rp3dRigidBody->resetTorque();
-          rp3dRigidBody->setLinearVelocity(SHVec3::Zero);
-          rp3dRigidBody->setAngularVelocity(SHVec3::Zero);
-        }
-
         // Sync active states
         const bool COMPONENT_ACTIVE = rigidBodyComponent->isActive;
         SyncActiveStates(physicsObject, COMPONENT_ACTIVE);
@@ -325,10 +320,10 @@ namespace SHADE
   void SHPhysicsSystem::PhysicsFixedUpdate::Execute(double dt) noexcept
   {
     auto* physicsSystem   = reinterpret_cast<SHPhysicsSystem*>(GetSystem());
-    auto scriptSys = SHSystemManager::GetSystem<SHScriptEngine>();
+    auto* scriptingSystem = SHSystemManager::GetSystem<SHScriptEngine>();
-    if (!scriptSys)
+    if (scriptingSystem == nullptr)
     {
-        SHLOG_WARNING("[SHPhysicsSystem] Unable to invoke FixedUpdate() on scripts due to missing SHScriptEngine!");
+        SHLOGV_WARNING("Unable to invoke FixedUpdate() on scripts due to missing SHScriptEngine!");
     }
 
     fixedTimeStep = 1.0 / physicsSystem->fixedDT;
@@ -337,10 +332,9 @@ namespace SHADE
     int count = 0;
     while (accumulatedTime > fixedTimeStep)
     {
-      if (scriptSys)
+      if (scriptingSystem != nullptr)
-      {
+        scriptingSystem->ExecuteFixedUpdates();
-        scriptSys->ExecuteFixedUpdates();
+      
-      }
       physicsSystem->world->update(static_cast<rp3d::decimal>(fixedTimeStep));
 
       accumulatedTime -= fixedTimeStep;
@@ -356,6 +350,11 @@ namespace SHADE
   void SHPhysicsSystem::PhysicsPostUpdate::Execute(double) noexcept
   {
     auto* physicsSystem = reinterpret_cast<SHPhysicsSystem*>(GetSystem());
+    auto* scriptingSystem = SHSystemManager::GetSystem<SHScriptEngine>();
+    if (scriptingSystem == nullptr)
+    {
+        SHLOGV_WARNING("Unable to invoke collision and trigger script events due to missing SHScriptEngine!");
+    }
 
     // Interpolate transforms for rendering
     if (physicsSystem->worldUpdated)
@@ -363,15 +362,8 @@ namespace SHADE
       physicsSystem->SyncTransforms();
 
       // Collision & Trigger messages
-      auto scriptSys = SHSystemManager::GetSystem<SHScriptEngine>();
+      if (scriptingSystem != nullptr)
-      if (scriptSys)
+        scriptingSystem->ExecuteCollisionFunctions();
-      {
-        scriptSys->ExecuteCollisionFunctions();
-      }
-      else
-      {
-        SHLOG_WARNING("[SHPhysicsSystem] Unable to invoke collision and trigger script events due to missing SHScriptEngine!");
-      }
 
       physicsSystem->ClearInvalidCollisions();
     }
@@ -630,10 +622,6 @@ namespace SHADE
       auto* rigidBodyComponent = SHComponentManager::GetComponent_s<SHRigidBodyComponent>(ENTITY_ID);
       auto* colliderComponent = SHComponentManager::GetComponent_s<SHColliderComponent>(ENTITY_ID);
 
-      SHASSERT(physicsObject != nullptr, "Physics object " + std::to_string(ENTITY_ID) + " has been lost from the world!")
-
-      if (REMOVED_ID == RIGID_BODY_ID)
-      {
       // Wake up all physics objects
       for (auto& [entityID, object] : map)
       {
@@ -641,6 +629,8 @@ namespace SHADE
           reinterpret_cast<rp3d::RigidBody*>(object.rp3dBody)->setIsSleeping(false);
       }
 
+      if (REMOVED_ID == RIGID_BODY_ID && physicsObject != nullptr)
+      {
         world->destroyRigidBody(reinterpret_cast<rp3d::RigidBody*>(physicsObject->rp3dBody));
         physicsObject->rp3dBody = nullptr;
 
@@ -657,7 +647,7 @@ namespace SHADE
         }
       }
 
-      if (REMOVED_ID == COLLIDER_ID)
+      if (REMOVED_ID == COLLIDER_ID && physicsObject != nullptr)
       {
         // Remove all colliders
         const int NUM_COLLIDERS = static_cast<int>(physicsObject->rp3dBody->getNbColliders());
@@ -673,11 +663,30 @@ namespace SHADE
           physicsObject->rp3dBody = nullptr;
       }
 
-      if (physicsObject->rp3dBody == nullptr)
+      if (physicsObject != nullptr && physicsObject->rp3dBody == nullptr)
         DestroyPhysicsObject(ENTITY_ID);
     }
 
     return EVENT_DATA->handle;
   }
 
+  SHEventHandle SHPhysicsSystem::ResetWorld(SHEventPtr editorStopEvent)
+  {
+    // TODO(Diren): Rebuild world based on how scene reloading is done
+
+    for (auto& [entityID, physicsObject] : map)
+    {
+      if (SHComponentManager::HasComponent<SHRigidBodyComponent>(entityID))
+      {
+        auto* rp3dRigidBody = reinterpret_cast<rp3d::RigidBody*>(physicsObject.rp3dBody);
+        rp3dRigidBody->resetForce();
+        rp3dRigidBody->resetTorque();
+        rp3dRigidBody->setLinearVelocity(SHVec3::Zero);
+        rp3dRigidBody->setAngularVelocity(SHVec3::Zero);
+      }
+    }
+
+    return editorStopEvent->handle;
+  }
+
 } // namespace SHADE

SHADE_Engine/src/Physics/SHPhysicsSystem.h

@@ -189,6 +189,7 @@ namespace SHADE
 
     SHEventHandle     AddPhysicsComponent       (SHEventPtr addComponentEvent);
     SHEventHandle     RemovePhysicsComponent    (SHEventPtr removeComponentEvent);
+    SHEventHandle     ResetWorld                (SHEventPtr editorStopEvent);
 
     template <typename RP3DCollisionPair, typename = std::enable_if_t
                                                     <std::is_same_v<RP3DCollisionPair, rp3d::CollisionCallback::ContactPair>

SHADE_Engine/src/Resource/SHResourceManager.cpp

@@ -21,9 +21,11 @@ namespace SHADE
   /*-----------------------------------------------------------------------------------*/
   SHResourceHub SHResourceManager::resourceHub;
   std::unordered_map<std::type_index, std::unordered_map<AssetID, Handle<void>>> SHResourceManager::handlesMap;
-  std::unordered_map<std::type_index, SHADE::SHResourceManager::HandleAssetMap> SHResourceManager::assetIdMap;
+  std::unordered_map<std::type_index, SHResourceManager::HandleAssetMap> SHResourceManager::assetIdMap;
   std::unordered_map<std::type_index, std::function<void(AssetID)>> SHResourceManager::typedFreeFuncMap;
   std::vector<AssetID> SHResourceManager::loadedAssetData;
+  bool SHResourceManager::textureChanged = false;
+  bool SHResourceManager::meshChanged    = false;
 
   /*-----------------------------------------------------------------------------------*/
   /* Function Definitions                                                              */
@@ -63,8 +65,17 @@ namespace SHADE
     SHGraphicsSystem* gfxSystem = SHSystemManager::GetSystem<SHGraphicsSystem>();
     if (gfxSystem == nullptr)
       throw std::runtime_error("[SHResourceManager] Attempted to load graphics resource without a SHGraphicsSystem installed.");
+
+    if (meshChanged)
+    {
       gfxSystem->BuildMeshBuffers();
+      meshChanged = false;
+    }
+    if (textureChanged)
+    {
       gfxSystem->BuildTextures();
+      textureChanged = false;
+    }
 
     // Free CPU Resources
     for (auto assetId : loadedAssetData)

SHADE_Engine/src/Resource/SHResourceManager.h

@@ -28,33 +28,15 @@ of DigiPen Institute of Technology is prohibited.
 
 namespace SHADE
 {
+  /// <summary>
+  /// Template structs that maps a resource to their loaded asset representation type.
+  /// </summary>
   template<typename T = void>
-  struct SHResourceLoader
+  struct SHResourceLoader                              { using AssetType = void;            };
-  {
+  template<> struct SHResourceLoader<SHMesh>           { using AssetType = SHMeshAsset;     };
-    using AssetType = void;
+  template<> struct SHResourceLoader<SHTexture>        { using AssetType = SHTextureAsset;  };
-  };
+  template<> struct SHResourceLoader<SHVkShaderModule> { using AssetType = SHShaderAsset;   };
-
+  template<> struct SHResourceLoader<SHMaterial>       { using AssetType = SHMaterialAsset; };
-  template<>
-  struct SHResourceLoader<SHMesh>
-  {
-    using AssetType = SHMeshAsset;
-  };
-  template<>
-  struct SHResourceLoader<SHTexture>
-  {
-    using AssetType = SHTextureAsset;
-  };
-  template<>
-  struct SHResourceLoader<SHVkShaderModule>
-  {
-    using AssetType = SHShaderAsset;
-  };
-  template<>
-  struct SHResourceLoader<SHMaterial>
-  {
-    using AssetType = SHMaterialAsset;
-  };
-
 
   /// <summary>
   /// Static class responsible for loading and caching runtime resources from their
@@ -97,7 +79,7 @@ namespace SHADE
     /// <param name="assetId">Handle to the resource to unload.</param>
     static void Unload(AssetID assetId);
     /// <summary>
-    /// Needs to be called to finalise all changes to loads.
+    /// Needs to be called to finalise all changes to loads, unless at runtime.
     /// </summary>
     static void FinaliseChanges();
 
@@ -147,6 +129,9 @@ namespace SHADE
     static std::unordered_map<std::type_index, std::function<void(AssetID)>> typedFreeFuncMap;
     // Pointers to temp CPU resources
     static std::vector<AssetID> loadedAssetData;
+    // Dirty Flags
+    static bool meshChanged;
+    static bool textureChanged;
 
     /*---------------------------------------------------------------------------------*/
     /* Helper Functions                                                                */

SHADE_Engine/src/Resource/SHResourceManager.hpp

@@ -54,7 +54,7 @@ namespace SHADE
     }
 
     auto handle = load<ResourceType>(assetId, *assetData);
-    Handle genericHandle = Handle();
+    Handle genericHandle = Handle(handle);
     typedHandleMap.get().emplace(assetId, genericHandle);
     typedAssetIdMap.get().emplace(genericHandle, assetId);
     return handle;
@@ -139,6 +139,7 @@ namespace SHADE
     if constexpr (std::is_same_v<ResourceType, SHMesh>)
     {
       loadedAssetData.emplace_back(assetId);
+      meshChanged = true;
 
       return gfxSystem->AddMesh
       (
@@ -155,6 +156,7 @@ namespace SHADE
     else if constexpr (std::is_same_v<ResourceType, SHTexture>)
     {
       loadedAssetData.emplace_back(assetId);
+      textureChanged = true;
 
       return gfxSystem->AddTexture
       (

SHADE_Managed/src/Components/Camera.cxx

@@ -0,0 +1,127 @@
+#include "SHpch.h"
+
+#include "Camera.hxx"
+#include "ECS_Base/Managers/SHSystemManager.h"
+#include "Camera/SHCameraSystem.h"
+
+
+namespace SHADE
+{
+	Camera::Camera(Entity entity)
+		:Component(entity)
+	{
+
+	}
+
+
+	float Camera::Pitch::get()
+	{
+		return (GetNativeComponent()->GetPitch());
+	}
+
+	void Camera::Pitch::set(float val)
+	{
+		GetNativeComponent()->SetPitch(val);
+	}
+	float Camera::Yaw::get()
+	{
+		return (GetNativeComponent()->GetYaw());
+	}
+
+	void Camera::Yaw::set(float val)
+	{
+		GetNativeComponent()->SetYaw(val);
+	}
+	float Camera::Roll::get()
+	{
+		return (GetNativeComponent()->GetRoll());
+	}
+
+	void Camera::Roll::set(float val)
+	{
+		GetNativeComponent()->SetRoll(val);
+	}
+	float Camera::Width::get()
+	{
+		return (GetNativeComponent()->GetWidth());
+	}
+
+	void Camera::Width::set(float val)
+	{
+		GetNativeComponent()->SetWidth(val);
+	}
+	float Camera::Height::get()
+	{
+		return (GetNativeComponent()->GetHeight());
+	}
+
+	void Camera::Height::set(float val)
+	{
+		GetNativeComponent()->SetHeight(val);
+	}
+	float Camera::Near::get()
+	{
+		return (GetNativeComponent()->GetNear());
+	}
+
+	void Camera::Near::set(float val)
+	{
+		GetNativeComponent()->SetNear(val);
+	}
+	float Camera::Far::get()
+	{
+		return (GetNativeComponent()->GetFar());
+	}
+
+	void Camera::Far::set(float val)
+	{
+		GetNativeComponent()->SetFar(val);
+	}
+	float Camera::FOV::get()
+	{
+		return (GetNativeComponent()->GetFOV());
+	}
+
+	void Camera::FOV::set(float val)
+	{
+		GetNativeComponent()->SetFOV(val);
+	}
+
+	Vector3 Camera::Position::get()
+	{
+		return Convert::ToCLI(GetNativeComponent()->GetPosition());
+	}
+
+	void Camera::Position::set(Vector3 val)
+	{
+		GetNativeComponent()->SetPosition(Convert::ToNative(val));
+	}
+
+	void Camera::SetMainCamera(size_t directorIndex)
+	{
+		auto system = SHSystemManager::GetSystem<SHCameraSystem>();
+		system->SetMainCamera(GetNativeComponent()->GetEID(), directorIndex);
+	}
+
+	void Camera::SetMainCamera()
+	{
+		SetMainCamera(0);
+	}
+
+	void Camera::LookAt(Vector3 targetPosition)
+	{
+		auto system = SHSystemManager::GetSystem<SHCameraSystem>();
+		system->CameraLookAt(*GetNativeComponent(), Convert::ToNative(targetPosition));
+	}
+
+	Vector3 Camera::GetForward()
+	{
+		auto system = SHSystemManager::GetSystem<SHCameraSystem>();
+		SHVec3 forward, up, right;
+		system->GetCameraAxis(*GetNativeComponent(), forward, right, up);
+		return Convert::ToCLI(forward);
+		
+	}
+
+
+}

SHADE_Managed/src/Components/Camera.hxx

@@ -0,0 +1,70 @@
+#pragma once
+
+// Project Includes
+#include "Components/Component.hxx"
+#include "Math/Vector3.hxx"
+#include "Math/Quaternion.hxx"
+// External Dependencies
+#include "Camera/SHCameraComponent.h"
+
+namespace SHADE
+{
+	public ref class Camera : public Component<SHCameraComponent>
+	{
+	internal:
+		Camera(Entity entity);
+
+	public:
+		property float Pitch
+		{
+			float get();
+			void set(float val);
+		}
+		property float Yaw
+		{
+			float get();
+			void set(float val);
+		}
+		property float Roll
+		{
+			float get();
+			void set(float val);
+		}
+		property float Width
+		{
+			float get();
+			void set(float val);
+		}
+		property float Height
+		{
+			float get();
+			void set(float val);
+		}
+		property float Near
+		{
+			float get();
+			void set(float val);
+		}
+		property float Far
+		{
+			float get();
+			void set(float val);
+		}
+		property float FOV
+		{
+			float get();
+			void set(float val);
+		}
+		property Vector3 Position
+		{
+			Vector3 get();
+			void set(Vector3 val);
+		}
+
+
+		void SetMainCamera(size_t directorIndex);
+		void SetMainCamera();
+		void LookAt(Vector3 targetPosition);
+		Vector3 GetForward();
+	};
+}

SHADE_Managed/src/Components/CameraArm.cxx

@@ -0,0 +1,51 @@
+#include "SHpch.h"
+#include "CameraArm.hxx"
+
+
+namespace SHADE
+{
+	CameraArm::CameraArm(Entity entity)
+		:Component(entity)
+	{
+
+	}
+
+	float CameraArm::Pitch::get()
+	{
+		return (GetNativeComponent()->GetPitch());
+	}
+
+	void CameraArm::Pitch::set(float val)
+	{
+		GetNativeComponent()->SetPitch(val);
+	}
+	float CameraArm::Yaw::get()
+	{
+		return (GetNativeComponent()->GetYaw());
+	}
+
+	void CameraArm::Yaw::set(float val)
+	{
+		GetNativeComponent()->SetYaw(val);
+	}
+
+	float CameraArm::ArmLength::get()
+	{
+		return (GetNativeComponent()->GetArmLength());
+	}
+
+	void CameraArm::ArmLength::set(float val)
+	{
+		GetNativeComponent()->SetArmLength(val);
+	}
+
+	bool CameraArm::LookAtCameraOrigin::get()
+	{
+		return GetNativeComponent()->lookAtCameraOrigin;
+	}
+
+	void CameraArm::LookAtCameraOrigin::set(bool val)
+	{
+		GetNativeComponent()->lookAtCameraOrigin = val;
+	}
+}

SHADE_Managed/src/Components/CameraArm.hxx

@@ -0,0 +1,40 @@
+#pragma once
+
+// Project Includes
+#include "Components/Component.hxx"
+#include "Math/Vector3.hxx"
+
+// External Dependencies
+#include "Camera/SHCameraArmComponent.h"
+
+
+namespace SHADE
+{
+	public ref class CameraArm : public Component<SHCameraArmComponent>
+	{
+	internal:
+		CameraArm(Entity entity);
+	public:
+		property float Pitch
+		{
+			float get();
+			void set(float val);
+		}
+		property float Yaw
+		{
+			float get();
+			void set(float val);
+		}
+		property float ArmLength
+		{
+			float get();
+			void set(float val);
+		}
+		property bool LookAtCameraOrigin
+		{
+			bool get();
+			void set(bool val);
+		}
+
+	};
+}

SHADE_Managed/src/Editor/Editor.cxx

@@ -260,7 +260,7 @@ namespace SHADE
 
             int val = safe_cast<int>(field->GetValue(object));
             int oldVal = val;
-            if (SHEditorUI::InputEnumCombo(Convert::ToNative(field->Name), val, nativeEnumNames))
+            if (SHEditorUI::InputEnumCombo(Convert::ToNative(field->Name), val, nativeEnumNames, &isHovered))
             {
                 field->SetValue(object, val); 
                 registerUndoAction(object, field, val, oldVal);
@@ -280,12 +280,23 @@ namespace SHADE
             // Actual Field
             std::string val = Convert::ToNative(stringVal);
             std::string oldVal = val;
-            if (SHEditorUI::InputTextField(Convert::ToNative(field->Name), val))
+            if (SHEditorUI::InputTextField(Convert::ToNative(field->Name), val, &isHovered))
             {
                 field->SetValue(object, Convert::ToCLI(val));
                 registerUndoAction(object, field, Convert::ToCLI(val), Convert::ToCLI(oldVal));
             }
         }
+        else if (field->FieldType == GameObject::typeid)
+        {
+            GameObject gameObj = safe_cast<GameObject>(field->GetValue(object));
+            uint32_t entityId = gameObj.GetEntity();
+            if (SHEditorUI::InputGameObjectField(Convert::ToNative(field->Name), entityId, &isHovered))
+            {
+                GameObject newVal = GameObject(entityId);
+                field->SetValue(object, newVal);
+                registerUndoAction(object, field, newVal, gameObj);
+            }
+        }
         else
         {
             array<System::Type^>^ interfaces = field->FieldType->GetInterfaces();

SHADE_Managed/src/Engine/ECS.cxx

@@ -33,6 +33,8 @@ of DigiPen Institute of Technology is prohibited.
 #include "Components/Transform.hxx"
 #include "Components\RigidBody.hxx"
 #include "Components\Collider.hxx"
+#include "Components/Camera.hxx"
+#include "Components/CameraArm.hxx"
 
 namespace SHADE
 {
@@ -248,6 +250,8 @@ namespace SHADE
         componentMap.Add(createComponentSet<SHTransformComponent, Transform>());
         componentMap.Add(createComponentSet<SHColliderComponent, Collider>());
         componentMap.Add(createComponentSet<SHRigidBodyComponent, RigidBody>());
+        componentMap.Add(createComponentSet<SHCameraComponent, Camera>());
+        componentMap.Add(createComponentSet<SHCameraArmComponent, CameraArm>());
     }
     
     /*---------------------------------------------------------------------------------*/

SHADE_Managed/src/Engine/GameObject.cxx

@@ -72,6 +72,10 @@ namespace SHADE
         }
         return node->IsActive();
     }
+    Entity GameObject::EntityId::get()
+    {
+        return entity;
+    }
     
     /*---------------------------------------------------------------------------------*/
     /* GameObject Property Functions                                                   */

SHADE_Managed/src/Engine/GameObject.hxx

@@ -86,6 +86,13 @@ namespace SHADE
         {
             bool get();
         }
+        /// <summary>
+        /// Native Entity ID value for this GameObject.
+        /// </summary>
+        property Entity EntityId
+        {
+            Entity get();
+        }
 
         /*-----------------------------------------------------------------------------*/
         /* GameObject Property Functions                                               */

SHADE_Managed/src/Engine/Time.cxx

@@ -29,6 +29,12 @@ namespace SHADE
     {
         return SHFrameRateController::GetRawDeltaTime();
     }
+
+
+    float Time::DeltaTimeF::get()
+    {
+      return static_cast<float>(SHFrameRateController::GetRawDeltaTime());
+    }
     double Time::FixedDeltaTime::get()
     {
         return SHPhysicsSystemInterface::GetFixedDT();

SHADE_Managed/src/Engine/Time.hxx

@@ -32,6 +32,16 @@ namespace SHADE
         {
             double get();
         }
+        /*-----------------------------------------------------------------------------*/
+        /* Properties                                                                  */
+        /*-----------------------------------------------------------------------------*/
+        /// <summary>
+        /// Time taken to process the previous frame.
+        /// </summary>
+        static property float DeltaTimeF
+        {
+          float get();
+        }
         /// <summary>
         /// Time taken for Physics simulations. You should use this for operations 
         /// within Script.FixedUpdate()

SHADE_Managed/src/Input/Input.cxx

@@ -99,4 +99,11 @@ namespace SHADE
         return SHInputManager::GetKeyReleasedTime(static_cast<SHInputManager::SH_KEYCODE>(key));
     }
 
+    Vector2 Input::GetMouseVelocity()
+    {
+      double velX, velY;
+      SHInputManager::GetMouseVelocity(&velX, &velY);
+
+      return Convert::ToCLI(SHVec2{ (float)velX,(float)velY });
+    }
 }

SHADE_Managed/src/Input/Input.hxx

@@ -471,5 +471,7 @@ namespace SHADE
         /// <param name="key">The key to check.</param>
         /// <returns>Time in seconds that the key was held.</returns>
         static double GetMouseReleasedTime(MouseCode mouseButton);
+
+        static Vector2 GetMouseVelocity();
     };
 }

SHADE_Managed/src/Serialisation/ReflectionUtilities.cxx

@@ -22,6 +22,7 @@ of DigiPen Institute of Technology is prohibited.
 #include "Math/Vector2.hxx"
 #include "Math/Vector3.hxx"
 #include "Utility/Debug.hxx"
+#include "Engine/GameObject.hxx"
 
 /*-------------------------------------------------------------------------------------*/
 /* Macro Functions                                                                     */
@@ -167,6 +168,11 @@ namespace SHADE
                 fieldNode.push_back(vec.y);
                 fieldNode.push_back(vec.z);
             }
+            else if (fieldInfo->FieldType == GameObject::typeid)
+            {
+                GameObject gameObj = safe_cast<GameObject>(fieldInfo->GetValue(object));
+                fieldNode = gameObj.GetEntity();
+            }
             else // Not any of the supported types
             {
                 Debug::LogWarning(Convert::ToNative(System::String::Format
@@ -242,6 +248,10 @@ namespace SHADE
                 );
             }
         }
+        else if (fieldInfo->FieldType == GameObject::typeid)
+        {
+            fieldInfo->SetValue(object, GameObject(node.as<uint32_t>()));
+        }
         else // Not any of the supported types
         {
             Debug::LogWarning(Convert::ToNative(System::String::Format

TempScriptsFolder/CameraControl.cs

@@ -0,0 +1,22 @@
+using System;
+using SHADE;
+
+namespace SHADE_Scripting
+{
+    public class CameraControl :Script
+    {
+        public float turnSpeed = 0.5f;
+
+        public CameraControl(GameObject go) : base(go) { }
+        protected override void update()
+        {
+            //Camera
+            Camera cam = GetComponent<Camera>();
+            Vector2 mouseVel = Input.GetMouseVelocity();
+
+            cam.Pitch -= mouseVel.y * turnSpeed * (float)Time.DeltaTime;
+            cam.Yaw += mouseVel.x * turnSpeed * (float)Time.DeltaTime;
+
+        }
+    }
+}

TempScriptsFolder/PhysicsTest.cs

@@ -38,7 +38,6 @@ public class PhysicsTest : Script
             RigidBody.AddForce(Force);
             Debug.Log($"Jump!");
         }
-        Debug.Log($"{Transform.LocalPosition.y}");
     }
 
     protected override void fixedUpdate()

TempScriptsFolder/ThirdPersonCamera.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SHADE;
+
+
+namespace SHADE_Scripting
+{
+    public class ThirdPersonCamera: Script
+    {
+
+        public float armLength = 4.0f;
+        public float turnSpeedPitch = 0.3f;
+        public float turnSpeedYaw = 0.5f;
+        public float pitchClamp = 45.0f;
+        public ThirdPersonCamera(GameObject go) : base(go) { }
+
+        protected override void awake()
+        {
+            if(!GetComponent<Camera>())
+            {
+                AddComponent<Camera>();
+            }
+            if (!GetComponent<CameraArm>())
+            {
+                AddComponent<CameraArm>();
+            }
+            GetComponent<CameraArm>().ArmLength = armLength;
+        }
+
+        protected override void update()
+        {
+            CameraArm arm = GetComponent<CameraArm>();
+            if(arm)
+            {
+                Vector2 vel = Input.GetMouseVelocity();
+                arm.Pitch -= vel.y * turnSpeedPitch * Time.DeltaTimeF;
+                arm.Yaw += vel.x * turnSpeedYaw * Time.DeltaTimeF;
+
+                if(arm.Pitch > pitchClamp)
+                {
+                    arm.Pitch = pitchClamp;
+                }
+                else if(arm.Pitch < -pitchClamp)
+                {
+                    arm.Pitch = -pitchClamp;
+                }
+
+            }
+        }
+
+    }
+}