From 15df08ef67ffe87f0168cff91c90a957afdbba11 Mon Sep 17 00:00:00 2001
From: Brandon Mak <xenosas@hotmail.com>
Date: Mon, 20 Feb 2023 14:28:23 +0800
Subject: [PATCH] Implemented events for screen resize

---
 SHADE_Engine/src/Camera/SHCameraSystem.cpp     | 18 ++++++++++++++++++
 SHADE_Engine/src/Camera/SHCameraSystem.h       |  5 +++++
 SHADE_Engine/src/Events/SHEventDefines.h       |  1 +
 .../src/Graphics/Events/SHGraphicsEvents.h     |  9 +++++++++
 .../MiddleEnd/Interface/SHGraphicsSystem.cpp   | 12 ++++++++++--
 .../Particles/SHParticleSubSystem.cpp          |  1 +
 6 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/SHADE_Engine/src/Camera/SHCameraSystem.cpp b/SHADE_Engine/src/Camera/SHCameraSystem.cpp
index 6ebbd078..d87e428e 100644
--- a/SHADE_Engine/src/Camera/SHCameraSystem.cpp
+++ b/SHADE_Engine/src/Camera/SHCameraSystem.cpp
@@ -12,6 +12,7 @@
 #include "Editor/SHEditor.h"
 #include "Math/SHRay.h"
 #include "Physics/System/SHPhysicsSystem.h"
+#include "Graphics/Events/SHGraphicsEvents.h"
 
 
 namespace SHADE
@@ -122,6 +123,13 @@ namespace SHADE
 
     SHComponentManager::CreateComponentSparseSet<SHCameraComponent>();
     SHComponentManager::CreateComponentSparseSet<SHCameraArmComponent>();
+
+    std::shared_ptr<SHEventReceiverSpec<SHCameraSystem>> thisReceiver
+    {
+      std::make_shared<SHEventReceiverSpec<SHCameraSystem>>(this, &SHCameraSystem::ReceiveWindowResizeEvent)
+    };
+    ReceiverPtr receiver = std::dynamic_pointer_cast<SHEventReceiver>(thisReceiver);
+    SHEventManager::SubscribeTo(SH_WINDOW_RESIZE_EVENT, receiver);
     
   }
 
@@ -130,6 +138,16 @@ namespace SHADE
 
   }
 
+  SHEventHandle SHCameraSystem::ReceiveWindowResizeEvent(SHEventPtr eventPtr) noexcept
+  {
+    auto const& EVENT_DATA = reinterpret_cast<const SHEventSpec<SHWindowResizeEvent>*>(eventPtr.get())->data;
+
+    //std::cout << EVENT_DATA->resizeWidth << std::endl;
+    //std::cout << EVENT_DATA->resizeHeight << std::endl;
+
+    return eventPtr->handle;
+  }
+
   SHCameraComponent* SHCameraSystem::GetEditorCamera(void) noexcept
   {
     return &editorCamera;
diff --git a/SHADE_Engine/src/Camera/SHCameraSystem.h b/SHADE_Engine/src/Camera/SHCameraSystem.h
index baf0ed09..4d6476bf 100644
--- a/SHADE_Engine/src/Camera/SHCameraSystem.h
+++ b/SHADE_Engine/src/Camera/SHCameraSystem.h
@@ -46,6 +46,11 @@ namespace SHADE
 		};
 		friend class CameraSystemUpdate;
 
+    /*-----------------------------------------------------------------------*/
+    /* Light functions                                                       */
+    /*-----------------------------------------------------------------------*/
+    SHEventHandle ReceiveWindowResizeEvent(SHEventPtr eventPtr) noexcept;
+
 
 		SHCameraComponent* GetEditorCamera (void) noexcept;
 		void GetCameraAxis(SHCameraComponent const& camera, SHVec3& forward, SHVec3& right, SHVec3& up) const noexcept;
diff --git a/SHADE_Engine/src/Events/SHEventDefines.h b/SHADE_Engine/src/Events/SHEventDefines.h
index e2fcba10..fa5bcafb 100644
--- a/SHADE_Engine/src/Events/SHEventDefines.h
+++ b/SHADE_Engine/src/Events/SHEventDefines.h
@@ -25,4 +25,5 @@ constexpr SHEventIdentifier SH_SCENE_EXIT_POST                    { 16 };
 constexpr SHEventIdentifier SH_GRAPHICS_LIGHT_ENABLE_SHADOW_EVENT { 17 };
 constexpr SHEventIdentifier SH_BUTTON_CLICK_EVENT                 { 18 };
 constexpr SHEventIdentifier SH_PHYSICS_COLLIDER_DRAW_EVENT        { 19 };
+constexpr SHEventIdentifier SH_WINDOW_RESIZE_EVENT                { 20 };
 
diff --git a/SHADE_Engine/src/Graphics/Events/SHGraphicsEvents.h b/SHADE_Engine/src/Graphics/Events/SHGraphicsEvents.h
index 06c480ef..51cd7aa2 100644
--- a/SHADE_Engine/src/Graphics/Events/SHGraphicsEvents.h
+++ b/SHADE_Engine/src/Graphics/Events/SHGraphicsEvents.h
@@ -14,4 +14,13 @@ namespace SHADE
     //! Generate a renderer for the light component
     bool generateRenderer;
   };
+
+  struct SHWindowResizeEvent
+  {
+    // New width when window resizes
+    uint32_t resizeWidth;
+
+    // New height when window resizes
+    uint32_t resizeHeight;
+  };
 }
diff --git a/SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp b/SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp
index 976939ce..297a86ae 100644
--- a/SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp
+++ b/SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp
@@ -138,8 +138,8 @@ namespace SHADE
     //SHAssetManager::CompileAsset("../../Assets/Shaders/UI_VS.glsl", false);
     //SHAssetManager::CompileAsset("../../Assets/Shaders/UI_FS.glsl", false);
     //SHAssetManager::CompileAsset("../../Assets/Shaders/Text_VS.glsl", false);
-    SHAssetManager::CompileAsset("../../Assets/Shaders/Trajectory_VS.glsl", false);
-    SHAssetManager::CompileAsset("../../Assets/Shaders/Trajectory_FS.glsl", false);
+    //SHAssetManager::CompileAsset("../../Assets/Shaders/Trajectory_VS.glsl", false);
+    //SHAssetManager::CompileAsset("../../Assets/Shaders/Trajectory_FS.glsl", false);
 
     // Load Built In Shaders
     static constexpr AssetID VS_DEFAULT    = 39210065;  defaultVertShader       = SHResourceManager::LoadOrGet<SHVkShaderModule>(VS_DEFAULT);
@@ -1178,6 +1178,14 @@ namespace SHADE
 #ifdef SHEDITOR
     cameraSystem->GetEditorCamera()->SetWidth(static_cast<float>(resizeWidth));
     cameraSystem->GetEditorCamera()->SetHeight(static_cast<float>(resizeHeight));
+
+    // Create new event and broadcast it
+    SHWindowResizeEvent newEvent;
+    newEvent.resizeWidth = resizeWidth;
+    newEvent.resizeHeight = resizeHeight;
+
+    SHEventManager::BroadcastEvent<SHWindowResizeEvent>(newEvent, SH_WINDOW_RESIZE_EVENT);
+
 #else
 
 #endif
diff --git a/SHADE_Engine/src/Graphics/MiddleEnd/Particles/SHParticleSubSystem.cpp b/SHADE_Engine/src/Graphics/MiddleEnd/Particles/SHParticleSubSystem.cpp
index 39bcab5b..eb3c4f1a 100644
--- a/SHADE_Engine/src/Graphics/MiddleEnd/Particles/SHParticleSubSystem.cpp
+++ b/SHADE_Engine/src/Graphics/MiddleEnd/Particles/SHParticleSubSystem.cpp
@@ -1,3 +1,4 @@
+#include "SHpch.h"
 #include "SHParticleSubSustem.h"
 
 namespace SHADE