First ECS test in the editor working (Tag component editable using a temp-testing entity in the editor)

docs/tasks/core.todo

@@ -59,15 +59,16 @@ Core:
             ☐ Provide Methods that give access to the C++ code
 
     ECS:
-        ☐ Research EnTT for the ECS (https://github.com/skypjack/entt/)
-        ☐ Research using ECS with a quadtree (regions may essentially be a quadtree)
+        ✔ Research EnTT for the ECS (https://github.com/skypjack/entt/) @done(22-06-01 14:01)
+        ✔ Research using ECS with a quadtree (regions may essentially be a quadtree) @done(22-06-01 14:01)
             ☐ Use 1 Entt registry with a component that stores the region ID (Index?)
  
         Enitity:
-            ☐ Single UUID
-            ☐ Functionality for adding/working with components (through EnTT)
+            ✔ Single UUID @done(22-06-01 14:01)
+            ✔ Functionality for adding/working with components (through EnTT) @done(22-06-01 14:01)
 
         Components:
+            ☐ Tag
             ☐ Transform
             ☐ SpriteRenderer
             ☐ Animation Controller
@@ -78,12 +79,15 @@ Core:
                 ☐ Box Collider (Box2D)  
     
     World (Lunariums version of a "Scene"):
-        ☐ Track/manage loaded regions
-        ☐ Render loaded Regions
+        ☐ Implement the world without Regions first
+
+        Implement Regions:
+            ☐ Track/manage active regions
+            ☐ Render active Regions
 
     Region:
         ☐ List of renderable images for each layer
-        ☐ List of game objects (by reference) in this Region
+        ☐ List of entities (by entt id) in this Region
         ☐ Implement image grid within regions
             [Regions could potentially be split into multiple images (an internal grid). 
             To support larger region sizes without needing single images that are like 1048576x1048576 or some nonsense.]

src/run_modes/editor/CMakeLists.txt

@@ -5,6 +5,7 @@ set(EDITOR_SRC
 "editor_helpers.cpp"
 "panel_manager.cpp"
 "project.cpp" 
+"component_guis.cpp"
 "panels/about.cpp"
 "panels/asset_browser.cpp"
 "panels/world_tree.cpp"

src/run_modes/editor/component_guis.cpp

@@ -0,0 +1,27 @@
+/******************************************************************************
+*	File		-	component_guis.cpp
+*	Author		-	Joey Pollack
+*	Date		-	2022/06/01 (y/m/d)
+*	Mod Date	-	2022/06/01 (y/m/d)
+*	Description	-	Functions to render component editing GUIs
+******************************************************************************/
+
+#include "component_guis.h"
+#include <editor/editor.h>
+#include <utils/logger.h>
+#include <dearimgui/imgui.h>
+
+namespace lunarium { namespace editor
+{
+    void CompGui::RenderTagComp(TagComponent& comp)
+    {
+        ImGui::Text("Tag:");
+        ImGui::SameLine();
+        ImGui::InputText("##Tag", comp.Info.data(), comp.Info.capacity())
+    }
+
+    void CompGui::RenderTransformComp(TransformComponent& comp)
+    {
+
+    }
+}}

src/run_modes/editor/component_guis.h

@@ -0,0 +1,25 @@
+/******************************************************************************
+*	File		-	component_guis.h
+*	Author		-	Joey Pollack
+*	Date		-	2022/06/01 (y/m/d)
+*	Mod Date	-	2022/06/01 (y/m/d)
+*	Description	-	Functions to render component editing GUIs
+******************************************************************************/
+
+#ifndef LUNARIUM_COMPONENT_GUIS_H_
+#define LUNARIUM_COMPONENT_GUIS_H_
+
+#include <world/components.h>
+
+namespace lunarium { namespace editor 
+{
+    class CompGui
+    {
+    public:
+        static void RenderTagComp(TagComponent& comp);
+        static void RenderTransformComp(TransformComponent& comp);
+    };
+}}
+
+
+#endif  // LUNARIUM_COMPONENT_GUIS_H_

src/run_modes/editor/editor.cpp

@@ -28,6 +28,11 @@
 
 #include <world/components.h>
 
+// TEST STUFF
+#include <world/world.h>
+#include <world/entity.h>
+#include <world/components.h>
+
 using namespace lunarium::gui;
 
 // ERROR LOG MACRO
@@ -47,7 +52,6 @@ namespace editor
 
     OpRes Editor::Initialize()
     {
-        LabelComponent test;
         LogCat = Logger::RegisterCategory("EDITOR");
 
         // Initialize internal data
@@ -69,6 +73,12 @@ namespace editor
         mPanelManager.AddPanel(new WorldView(), mPanels.WorldView).LogIfFailed(LogCat);
         mPanelManager.AddPanel(new PropertiesView(), mPanels.PropertiesView).LogIfFailed(LogCat);
 
+        // TEST ENTITY
+        mTestWorld = new lunarium::World;
+        mTestEntity = mTestWorld->CreateEntity();
+        mTestWorld->GetEntity(mTestEntity)->AddComponent<TagComponent>();
+        ((PropertiesView*)mPanelManager.GetPanel(mPanels.PropertiesView))->SetSelection(mTestWorld->GetEntity(mTestEntity));
+
         return OpRes::OK();
     }
     

src/run_modes/editor/editor.h

@@ -10,6 +10,7 @@
 #define EDITOR_H_
 
 #include <core/run_mode.h>
+#include <core/common_defs.h>
 #include <utils/op_res.h>
 
 #include "project.h"
@@ -21,7 +22,7 @@
 
 namespace lunarium 
 {
-    class FileBrowser;
+    class World;
 }
 
 namespace lunarium { namespace editor
@@ -60,6 +61,7 @@ namespace lunarium { namespace editor
         
     private:    // Data
         PanelManager mPanelManager;
+        lunarium::World* mTestWorld;
         Project mProject;
 
         // Tools
@@ -85,6 +87,9 @@ namespace lunarium { namespace editor
         bool mDoOpenProject;
         bool mDoSaveProject;
         bool mDoSaveAs;
+
+        // TEST DATA
+        LUUID mTestEntity;
         
 
     private:    // HELPERS

src/run_modes/editor/panels/properties_view.cpp

@@ -10,6 +10,9 @@
 #include "properties_view.h"
 #include <dearimgui/imgui.h>
 #include <editor/editor.h>
+#include <world/entity.h>
+#include <world/components.h>
+#include <editor/component_guis.h>
 
 namespace lunarium { namespace editor 
 {
@@ -30,9 +33,30 @@ namespace lunarium { namespace editor
             return false;
         }
 
+        if (mpSelectedEntity)
+        {
+            // TODO: iterate through components
+            if (mpSelectedEntity->HasComponent<TagComponent>())
+            {
+                CompGui::RenderTagComp(mpSelectedEntity->GetComponent<TagComponent>());
+            }
+        }
+
         ImGui::End();
         return true;
     }
 
+    void PropertiesView::SetSelection(Entity* pEntity)
+    {
+        mpSelectedAsset = nullptr;
+        mpSelectedEntity = pEntity;
+    }
+
+    void PropertiesView::SetSelection(EditorAsset* pAsset)
+    {
+        mpSelectedEntity = nullptr;
+        mpSelectedAsset = pAsset;
+    }
+
 
 }}

src/run_modes/editor/panels/properties_view.h

@@ -15,19 +15,28 @@
 
 namespace lunarium
 {
+    class Entity;
 namespace editor
 {
     class CustromProperty;
+    class EditorAsset;
     class PropertiesView : public gui::Panel
     {
     public:
 
         PropertiesView();
 
+        void SetSelection(Entity* pEntity);
+        void SetSelection(EditorAsset* pAsset);
+
         bool DoFrame();
 
     private:
         std::vector<CustromProperty*> mCustomProps;
+
+        // Only ONE of these should be set at a time
+        Entity* mpSelectedEntity;
+        EditorAsset* mpSelectedAsset;
     };
 }
 }

src/run_modes/editor/panels/world_tree.cpp

@@ -21,12 +21,12 @@ namespace editor
         
     }
 
-    void WorldTree::SetWorld(lunarium::game::World* pWorld)
+    void WorldTree::SetWorld(lunarium::World* pWorld)
     {
         mpWorld = pWorld;
     }
 
-    lunarium::game::World* WorldTree::GetWorld()
+    lunarium::World* WorldTree::GetWorld()
     {
         return mpWorld;
     }

src/run_modes/editor/panels/world_tree.h

@@ -13,7 +13,7 @@
 
 namespace lunarium
 {
-    namespace game { class World; } // TODO: Use the editor::World class instead?
+    class World; 
 
 namespace editor
 {
@@ -22,13 +22,13 @@ namespace editor
     public:
         WorldTree();
 
-        void SetWorld(lunarium::game::World* pWorld);
-        lunarium::game::World* GetWorld();
+        void SetWorld(lunarium::World* pWorld);
+        lunarium::World* GetWorld();
 
         bool DoFrame();
 
     private:
-        lunarium::game::World* mpWorld;
+        lunarium::World* mpWorld;
     };
 }
 }

src/world/components.h

@@ -10,14 +10,38 @@
 #define LUNARIUM_COMPONENTS_H_
 
 #include <core/common_defs.h>
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+
+#define GLM_ENABLE_EXPERIMENTAL
+#include <glm/gtx/quaternion.hpp>
 
 #include <string>
 
 namespace lunarium
 {
-    struct LabelComponent
+    struct TagComponent
+    {
+        std::string Info;
+
+        TagComponent()
+        {
+            Info.reserve(256);
+        }
+    };
+
+    struct TransformComponent
     {
-        std::string Label;
+        glm::vec3 Position = { 0.0f, 0.0f, 0.0f };
+        glm::vec3 Rotation = { 0.0f, 0.0f, 0.0f };
+        glm::vec3 Scale = { 1.0f, 1.0f, 1.0f };;
+
+        glm::mat4 GetTransform() 
+        { 
+            // Quaternion code taken from Hazel engine
+            // https://github.com/TheCherno/Hazel/blob/dev/Hazel/src/Hazel/Scene/Components.h
+            return (glm::translate(glm::mat4(1.0f), Position) * glm::toMat4(glm::quat(Rotation)) * glm::scale(glm::mat4(1.0f), Scale )); 
+        }
     };
 }
 

src/world/entity.cpp

@@ -7,17 +7,30 @@
 ******************************************************************************/
 
 #include "entity.h"
+#include "world.h"
 
 namespace lunarium
 {
-    Entity::Entity(entt::registry* r)
-        : mHandle(entt::null), mpRegistry(r)
+    Entity::Entity(World& w)
+        : mHandle(entt::null), mWorld(w)
     {
         mUUID = UUID::GetNewID();
+        Init();
     }
 
-    Entity::Entity(entt::registry* r, LUUID uuid)
-        : mHandle(entt::null), mpRegistry(r), mUUID(uuid)
+    Entity::Entity(World& w, LUUID uuid, entt::entity handle)
+        : mHandle(handle), mWorld(w), mUUID(uuid)
     {
+        Init();
+    }
+
+    void Entity::Init()
+    {
+        mHandle = mWorld.GetEntityRegistry()->create();
+    }
+
+    LUUID Entity::GetUUID() const
+    {
+        return mUUID;
     }
 }

src/world/entity.h

@@ -12,6 +12,7 @@
 #include <utils/uuid.h>
 #include <utils/logger.h>
 #include <entt/entt.hpp>
+#include <world/world.h>
 
 namespace lunarium
 {
@@ -19,8 +20,8 @@ namespace lunarium
     {
     public:
         // TODO: Maybe change this to take the World instead of the registry
-        Entity(entt::registry* r);
-        Entity(entt::registry* r, LUUID uuid);
+        Entity(World& w);
+        Entity(World& w, LUUID uuid, entt::entity handle = entt::null);
 
         // These component methods are based on methods from the Hazel engine, written by Cherno
         // https://github.com/TheCherno/Hazel/blob/dev/Hazel/src/Hazel/Scene/Entity.h
@@ -29,11 +30,10 @@ namespace lunarium
 		{
 			if (HasComponent<T>())
             {
-                Log::Error(LogCategory::GAME_SYSTEM, "Entity already has component!");
+                Logger::Error(LogCategory::GAME_SYSTEM, "Entity already has component!");
                 return GetComponent<T>();
             }
-			T& component = mpRegistry->emplace<T>(mHandle, std::forward<Args>(args)...);
-			//m_Scene->OnComponentAdded<T>(*this, component);
+			T& component = mWorld.GetEntityRegistry()->emplace<T>(mHandle, std::forward<Args>(args)...);
 			return component;
 		}
 
@@ -42,15 +42,15 @@ namespace lunarium
 		{
 			if (!HasComponent<T>())
             {
-                Log::Error(LogCategory::GAME_SYSTEM, "Entity does not have component!");
+                Logger::Error(LogCategory::GAME_SYSTEM, "Entity does not have component!");
             }
-			return mpRegistry->get<T>(mHandle);
+			return mWorld.GetEntityRegistry()->get<T>(mHandle);
 		}
 
 		template<typename T>
 		bool HasComponent()
 		{
-			return mpRegistry->all_of<T>(mHandle);
+			return mWorld.GetEntityRegistry()->all_of<T>(mHandle);
 		}
 
 		template<typename T>
@@ -58,15 +58,21 @@ namespace lunarium
 		{
 			if (!HasComponent<T>())
             {
-                Log::Error(LogCategory::GAME_SYSTEM, "Entity does not have component!");
+                Logger::Error(LogCategory::GAME_SYSTEM, "Entity does not have component!");
             }
-			m_Scene->m_Registry.remove<T>(mHandle);
+			mWorld.GetEntityRegistry()->remove<T>(mHandle);
 		}
 
+        LUUID GetUUID() const;
+
     private:
         LUUID mUUID;
         entt::entity mHandle;
-        entt::registry* mpRegistry;
+        World& mWorld; // The world the entity is contained within
+        //entt::registry* mpRegistry;
+
+    private:
+        void Init();
     };
 }
 

src/world/world.cpp

@@ -10,17 +10,24 @@
 ******************************************************************************/
 
 #include "world.h"
+#include <utils/logger.h>
 #include <assets/types/script.h>
 #include <assets/types/image.h>
 #include <graphics/graphics.h>
 #include <graphics/camera.h>
+#include "entity.h"
 
 namespace lunarium
 {
-    World::World(Camera* pCam, Sizei region_size, Sizei world_size)
-        : mpCamera(pCam), mRegionSize(region_size), mpWorldScript(nullptr), mWorldSize(world_size)
+    // World::World(Camera* pCam, Sizei region_size, Sizei world_size)
+    //     : mpCamera(pCam), mRegionSize(region_size), mpWorldScript(nullptr), mWorldSize(world_size)
+    // {
+    //     mActiveRegion = { 0, 0 };
+    // }
+
+    World::World()
     {
-        mActiveRegion = { 0, 0 };
+
     }
 
     void World::OnLoad()
@@ -69,4 +76,23 @@ namespace lunarium
         return mpWorldScript;
     }
 
+    entt::registry* World::GetEntityRegistry()
+    {
+        return &mECSRegistry;
+    }
+
+    LUUID World::CreateEntity()
+    {
+        //Logger::Error(LogCategory::GAME_SYSTEM, "World::CreateEntity not implemented!");
+        Entity* new_ent = new Entity(*this);
+        mEntities[new_ent->GetUUID()] = new_ent;
+        return new_ent->GetUUID();
+    }
+
+    
+    Entity* World::GetEntity(LUUID id)
+    {
+        return mEntities[id];
+    }
+
 }

src/world/world.h

@@ -12,6 +12,7 @@
 #ifndef WORLD_H_
 #define WORLD_H_
 
+#include <core/common_defs.h>
 #include <core/types.h>
 #include <utils/op_res.h>
 #include <entt/entt.hpp>
@@ -24,8 +25,9 @@ namespace lunarium
     class Graphics;
     class Image;
     class Script;
-    class Camera;
-    class GameObject;
+    //class Camera;
+    //class GameObject;
+    class Entity;
 }
 
 namespace lunarium 
@@ -35,16 +37,17 @@ namespace lunarium
     public:
         struct Region
         {
-            lunarium::Script* mRegionScript;
-            Vec2i mCoords;
-            std::vector<GameObject*> mObjects;
+            bool IsActive;
+            lunarium::Script* RegionScript;
+            Vec2i Coords;
+            std::vector<Entity*> Entities;
             std::vector<lunarium::Image*> mLayers;
-            // Colliders
         };
 
     public:     // INTERFACE
 
-        World(Camera* pCam, Sizei region_size, Sizei world_size);
+        //World(Camera* pCam, Sizei region_size, Sizei world_size);
+        World();
 
         void OnLoad();
         void OnUnload();
@@ -59,15 +62,23 @@ namespace lunarium
         void SetWorldScript(Script* pScript);
         lunarium::Script* GetWorldScript();
 
+        entt::registry* GetEntityRegistry();
+        LUUID CreateEntity();
+        Entity* GetEntity(LUUID id);
+
 
     private:
         entt::registry mECSRegistry;
-        Camera* mpCamera;
-        std::vector<GameObject*> mWorldObjects;
+        //Camera* mpCamera;
+        //std::vector<GameObject*> mWorldObjects;
         lunarium::Script* mpWorldScript; 
-        Sizei mRegionSize;      // in pixels
+        Sizei mRegionSize;      // in tiles
         Sizei mWorldSize;       // num regions ex. 10x10
         Vec2i mActiveRegion;
+
+
+        // TEST STUFF
+        std::map<LUUID, Entity*> mEntities;
         
 
     };