EditorCamera.hpp

#pragma once
 
#include <glm/glm.hpp>
#include <glm/gtc/quaternion.hpp>
 
#include <Common/Rendering/RenderGraphBuilder.hpp>
#include "GridRenderer.hpp"
#include "GizmoRenderer.hpp"
 
struct EngineUboStruct {
    glm::mat4 projectionMatrix;
    glm::mat4 viewMatrix;
    glm::mat4 inverseProjectionMatrix;
    glm::mat4 inverseViewMatrix;
    glm::vec3 eyePos;
    float alignmentBufferForPreviousVec3;
    glm::vec2 framebufferResolution;
    glm::vec2 renderResolution;
    glm::vec2 renderScale;
    float time;
};
 
namespace Grindstone {
    class BaseRenderer;
    struct TransformComponent;
    struct CameraComponent;
 
    namespace GraphicsAPI {
        class Framebuffer;
        class Image;
        class Sampler;
        class CommandBuffer;
        class DescriptorSet;
        class DescriptorSetLayout;
        class RenderPass;
    }
 
    namespace Editor {
        class EditorCamera {
        public:
            static void SetupRenderPasses();
            EditorCamera();
            ~EditorCamera();
            void RegisterGizmoPass(std::function<Grindstone::Renderer::RenderGraphBuilderResourceRef(Grindstone::Renderer::RenderGraphBuilder&, Grindstone::Renderer::RenderGraphBuilderResourceRef, Grindstone::Renderer::RenderGraphBuilderResourceRef)> callback);
            void CaptureMousePick(GraphicsAPI::CommandBuffer* commandBuffer, int x, int y);
            uint32_t GetMousePickedEntity(GraphicsAPI::CommandBuffer* commandBuffer);
            uint64_t GetRenderOutput();
            void Render(GraphicsAPI::CommandBuffer* commandBuffer);
            void RenderPlayModeCamera(GraphicsAPI::CommandBuffer* commandBuffer);
            void OffsetRotation(float pitch, float yaw);
            void OffsetPosition(glm::vec3 offset);
            void SetPosition(glm::vec3 newPosition);
            void ResizeViewport(uint32_t width, uint32_t height);
            void UpdateProjectionMatrix();
            void UpdateViewMatrix();
            glm::mat4& GetProjectionMatrix();
            glm::mat4& GetViewMatrix();
            BaseRenderer* GetRenderer() const;
            void ClearRenderer();
 
            glm::vec3 GetPosition() const;
            glm::vec3 GetForward() const;
            glm::vec3 GetRight() const;
            glm::vec3 GetUp() const;
 
            bool isGridEnabled = true;
            bool isBoundingSphereGizmoEnabled = false;
            bool isBoundingBoxGizmoEnabled = false;
            bool isColliderGizmoEnabled = true;
        private:
            GraphicsAPI::Buffer* gpuGlobalUniformBufferObject = nullptr;
 
            Grindstone::GraphicsAPI::DescriptorSetLayout* globalDescriptorSetLayout;
            Grindstone::GraphicsAPI::Buffer* globalStagingUniformBufferObject;
            std::array<Grindstone::GraphicsAPI::Buffer*, 3> globalUniformBufferObject;
            std::array<Grindstone::GraphicsAPI::DescriptorSet*, 3> globalDescriptorSet;
 
            GizmoRenderer gizmoRenderer;
            GridRenderer gridRenderer;
            std::array<GraphicsAPI::Image*, 3> renderTarget;
            std::array<GraphicsAPI::Image*, 3> depthTarget;
            GraphicsAPI::Sampler* sampler = nullptr;
            GraphicsAPI::DescriptorSetLayout* descriptorSetLayout = nullptr;
            std::array<GraphicsAPI::DescriptorSet*, 3> descriptorSet;
            std::vector<
                std::function<
                    Grindstone::Renderer::RenderGraphBuilderResourceRef(
                        Grindstone::Renderer::RenderGraphBuilder&,
                        Grindstone::Renderer::RenderGraphBuilderResourceRef,
                        Grindstone::Renderer::RenderGraphBuilderResourceRef
                    )
                >
            > gizmoRenderCallbacks;
 
            GraphicsAPI::DescriptorSetLayout* mousePickDescriptorSetLayout = nullptr;
            std::array<GraphicsAPI::Image*, 3> mousePickRenderTarget{};
            std::array<GraphicsAPI::Framebuffer*, 3> mousePickFramebuffer{};
            std::array<GraphicsAPI::DescriptorSet*, 3> mousePickDescriptorSet{};
            std::array<GraphicsAPI::Buffer*, 3> mousePickMatrixBuffer{};
            std::array<GraphicsAPI::Buffer*, 3> mousePickResponseBuffer{};
 
            BaseRenderer* renderer = nullptr;
            glm::mat4 projection;
            glm::mat4 view;
            glm::vec3 position = glm::vec3();
            glm::vec3 eulerAngles = glm::vec3();
            glm::quat rotation = glm::quat();
            uint32_t width = 800;
            uint32_t height = 600;
            float fieldOfView = glm::radians(80.0f);
            float nearPlaneDistance = 0.1f;
            float farPlaneDistance = 150.f;
        };
    }
}