From 29b6e7050d742c4a104417f33f2dfb1e269fb237 Mon Sep 17 00:00:00 2001
From: maverickdgg <danielcyc38@gmail.com>
Date: Fri, 21 Oct 2022 08:11:12 +0800
Subject: [PATCH] camera director WIP

---
 SHADE_Engine/src/Camera/SHCameraDirector.cpp | 50 ++++++++++++++++++++
 SHADE_Engine/src/Camera/SHCameraDirector.h   | 36 ++++++++++++++
 SHADE_Engine/src/Camera/SHCameraSystem.cpp   | 10 ++++
 SHADE_Engine/src/Camera/SHCameraSystem.h     | 18 +++++--
 4 files changed, 110 insertions(+), 4 deletions(-)
 create mode 100644 SHADE_Engine/src/Camera/SHCameraDirector.cpp
 create mode 100644 SHADE_Engine/src/Camera/SHCameraDirector.h

diff --git a/SHADE_Engine/src/Camera/SHCameraDirector.cpp b/SHADE_Engine/src/Camera/SHCameraDirector.cpp
new file mode 100644
index 00000000..4ade9dbd
--- /dev/null
+++ b/SHADE_Engine/src/Camera/SHCameraDirector.cpp
@@ -0,0 +1,50 @@
+#include "SHpch.h"
+#include "SHCameraDirector.h"
+#include "SHCameraComponent.h"
+#include "ECS_Base/Managers/SHComponentManager.h"
+#include "ECS_Base/SHECSMacros.h"
+#include "Tools/SHLog.h"
+
+namespace SHADE
+{
+	SHCameraDirector::SHCameraDirector()
+		:mainCameraEID(MAX_EID), transitionCameraEID(MAX_EID)
+	{
+	}
+
+
+	SHMatrix SHCameraDirector::GetViewMatrix() const noexcept
+	{
+		return viewMatrix;
+	}
+	SHMatrix SHCameraDirector::GetProjMatrix() const noexcept
+	{
+		return projMatrix;
+	}
+	SHMatrix SHCameraDirector::GetVPMatrix() const noexcept
+	{
+		return projMatrix * viewMatrix;
+	}
+
+	void SHCameraDirector::UpdateMatrix() noexcept
+	{
+		if (mainCameraEID == MAX_EID)
+		{
+			return;
+		}
+		SHCameraComponent* camComponent = SHComponentManager::GetComponent_s<SHCameraComponent>(mainCameraEID);
+		if (!camComponent)
+		{
+			SHLOG_WARNING("Camera Director warning: Entity does not have a camera");
+		}
+		else
+		{
+			viewMatrix = camComponent->GetViewMatrix();
+			projMatrix = camComponent->GetProjMatrix();
+		}
+
+
+	}
+
+
+}
diff --git a/SHADE_Engine/src/Camera/SHCameraDirector.h b/SHADE_Engine/src/Camera/SHCameraDirector.h
new file mode 100644
index 00000000..00e2d0c2
--- /dev/null
+++ b/SHADE_Engine/src/Camera/SHCameraDirector.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include "SH_API.h"
+#include "ECS_Base/Entity/SHEntity.h"
+#include "Math/SHMatrix.h"
+
+
+namespace SHADE
+{
+	class SH_API SHCameraDirector
+	{
+	public:
+		SHCameraDirector();
+		~SHCameraDirector() = default;
+
+		
+		EntityID mainCameraEID;
+		EntityID transitionCameraEID;
+
+		SHMatrix GetViewMatrix() const noexcept;
+		SHMatrix GetProjMatrix() const noexcept;
+		SHMatrix GetVPMatrix() const noexcept;
+		void UpdateMatrix() noexcept;
+
+
+	private:
+
+
+	protected:
+		SHMatrix viewMatrix;
+		SHMatrix projMatrix;
+
+	};
+
+
+}
diff --git a/SHADE_Engine/src/Camera/SHCameraSystem.cpp b/SHADE_Engine/src/Camera/SHCameraSystem.cpp
index a9b356de..e0d983b2 100644
--- a/SHADE_Engine/src/Camera/SHCameraSystem.cpp
+++ b/SHADE_Engine/src/Camera/SHCameraSystem.cpp
@@ -3,6 +3,7 @@
 #include "Math/SHMathHelpers.h"
 #include "Input/SHInputManager.h"
 #include "Math/Vector/SHVec2.h"
+#include "ECS_Base/Managers/SHComponentManager.h"
 
 
 
@@ -169,5 +170,14 @@ namespace SHADE
     upVec = SHVec3::Cross(forward, right);
   }
 
+  void SHCameraSystem::CameraSystemUpdate::Execute(double dt) noexcept
+  {
+    SHCameraSystem* system = static_cast<SHCameraSystem*>(GetSystem());
+    auto& dense = SHComponentManager::GetDense<SHCameraComponent>();
+    for (auto& cam : dense)
+    {
+      system->UpdateCameraComponent(cam);
+    }
+  }
 
 }
diff --git a/SHADE_Engine/src/Camera/SHCameraSystem.h b/SHADE_Engine/src/Camera/SHCameraSystem.h
index 43e386e7..2f8e6142 100644
--- a/SHADE_Engine/src/Camera/SHCameraSystem.h
+++ b/SHADE_Engine/src/Camera/SHCameraSystem.h
@@ -3,8 +3,9 @@
 #include "ECS_Base/System/SHSystem.h"
 #include "SHCameraComponent.h"
 #include "ECS_Base/System/SHSystemRoutine.h"
-#include "SH_API.h"
+#include "Resource/ResourceLibrary.h"
 
+#include "SH_API.h"
 
 namespace SHADE
 {
@@ -14,7 +15,7 @@ namespace SHADE
 		//A camera component that represents editor camera.
 		//This is not tied to any entity. Hence this EID should not be used.
 		SHCameraComponent editorCamera;
-
+		
 		
 
 	public:
@@ -34,13 +35,22 @@ namespace SHADE
 		};
 		friend class EditorCameraUpdate;
 
-		SHCameraComponent* GetEditorCamera (void) noexcept;
+		class SH_API CameraSystemUpdate final: public SHSystemRoutine
+		{
+		public:
+			CameraSystemUpdate() : SHSystemRoutine("Camera System Update", false) {};
+			virtual void Execute(double dt)noexcept override final;
+		};
+		friend class CameraSystemUpdate;
 
+
+		SHCameraComponent* GetEditorCamera (void) noexcept;
+		void GetCameraAxis(SHCameraComponent const& camera, SHVec3& forward, SHVec3& right, SHVec3& up) const noexcept;
 	protected:
 
 		void UpdateCameraComponent(SHCameraComponent& camera) noexcept;
 
-		void GetCameraAxis(SHCameraComponent const& camera, SHVec3& forward, SHVec3& right, SHVec3& up) const noexcept;
+		
 
 	};