First iteration of GUI code. GUI is rendered on top of everything, world still separate.

2015-09-22 14:39:08 +02:00
parent 0e6fcfb2ba
commit 1d500eb4f6
12 changed files with 855 additions and 54 deletions
@@ -0,0 +1,81 @@
+#ifndef GUI_Viewport_h__
+#define GUI_Viewport_h__
+
+#include <memory>
+
+#include "GUI/Frame.h"
+#include "World.h"
+#include "Systems/TransformSystem.h"
+#include "Components/Transform.h"
+#include "Components/Camera.h"
+#include "RenderQueue.h"
+#include "Camera.h"
+
+namespace GUI
+{
+
+class Viewport : public Frame
+{
+public:
+	Viewport(Frame* parent, std::string name, std::shared_ptr<World> world)
+		: Frame(parent, name)
+		, m_World(world)
+	{ }
+
+	EntityID CameraEntity() const { return m_CameraEntity; }
+	void SetCameraEntity(EntityID cameraEntity) 
+	{ 
+		m_CameraEntity = cameraEntity;
+		auto transformComponent = m_World->GetComponent<Components::Transform>(cameraEntity);
+		if (!transformComponent)
+			return;
+		auto cameraComponent = m_World->GetComponent<Components::Camera>(cameraEntity);
+		if (!cameraComponent)
+			return;
+
+		m_Camera = std::make_shared<Camera>(cameraComponent->FOV, cameraComponent->NearClip, cameraComponent->FarClip);
+	}
+
+
+	void Update(double dt) override
+	{
+		if (!m_TransformSystem)
+			m_TransformSystem = m_World->GetSystem<Systems::TransformSystem>();
+
+		auto transformComponent = m_World->GetComponent<Components::Transform>(m_CameraEntity);
+		if (!transformComponent)
+			return;
+		
+		auto cameraComponent = m_World->GetComponent<Components::Camera>(m_CameraEntity);
+		if (!cameraComponent)
+			return;
+
+		Components::Transform absoluteTransform = m_TransformSystem->AbsoluteTransform(m_CameraEntity);
+		
+		m_Camera->SetFOV(cameraComponent->FOV);
+		m_Camera->SetNearClip(cameraComponent->NearClip);
+		m_Camera->SetFarClip(cameraComponent->FarClip);
+		m_Camera->SetPosition(absoluteTransform.Position);
+		m_Camera->SetOrientation(absoluteTransform.Orientation);
+	}
+
+	void Draw(std::shared_ptr<Renderer> renderer) override
+	{
+		if (!m_Camera)
+			return;
+
+		renderer->SetCamera(m_Camera);
+		renderer->SetViewport(AbsoluteRectangle());
+		renderer->DrawWorld(m_Parent->RenderQueue);
+	}
+
+private:
+	std::shared_ptr<World> m_World;
+	std::shared_ptr<Systems::TransformSystem> m_TransformSystem;
+	std::shared_ptr<Camera> m_Camera;
+	EntityID m_CameraEntity;
+};
+
+}
+
+#endif // GUI_Viewport_h__