merge

Author: phisko

.gitignore

@@ -33,3 +33,4 @@
 # Directories
 cmake/
 cmake-build-debug/
+*.TMP

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "putils"]
 	path = putils
-	url = [email protected]:phiste/putils
+	url = [email protected]:phisko/putils

CMakeLists.txt

@@ -3,6 +3,7 @@ project(kengine)
 set(CMAKE_CXX_STANDARD 17)
 
 if (KENGINE_SFML)
+    set(TGUI TRUE)
     set(PUTILS_BUILD_PSE TRUE)
 endif ()
 
@@ -16,10 +17,12 @@ endif ()
 
 if(KENGINE_LUA)
     set(PUTILS_BUILD_LUA TRUE)
+	set(ADDITIONAL_LIBS ${ADDITIONAL_LIBS} lua)
 endif()
 
 if(KENGINE_PYTHON)
     set(PUTILS_BUILD_PYTHON TRUE)
+	set(ADDITIONAL_LIBS ${ADDITIONAL_LIBS} puthon)
 endif()
 
 set(PUTILS_BUILD_MEDIATOR TRUE)
@@ -37,7 +40,7 @@ elseif (WIN32)
 endif ()
 
 add_library(kengine INTERFACE)
-target_link_libraries(kengine INTERFACE mediator pluginManager)
+target_link_libraries(kengine INTERFACE mediator pluginManager ${ADDITIONAL_LIBS})
 target_include_directories(kengine INTERFACE . common)
 
 if (KENGINE_SFML)

Component.hpp

@@ -1,16 +1,72 @@
-//
-// Created by naliwe on 6/24/16.
-//
-
 #pragma once
 
-#include <string>
-#include "IComponent.hpp"
+#ifndef NDEBUG
+#include <iostream>
+#include "reflection/Reflectible.hpp"
+#endif
+
+#include <cstddef>
+#include <unordered_map>
+#include <memory>
+#include <vector>
+#include "meta/type.hpp"
 
 namespace kengine {
-    template<typename CRTP, typename ...DataPackets>
-    class Component : public IComponent, public putils::Module<CRTP, DataPackets...> {
-    public:
-        pmeta::type_index getType() const noexcept final { return pmeta::type<CRTP>::index; }
-    };
+	namespace detail {
+		static constexpr size_t INVALID = (size_t)-1;
+
+		struct MetadataBase {
+			virtual ~MetadataBase() = default;
+		};
+		using GlobalCompMap = std::unordered_map<pmeta::type_index, std::unique_ptr<MetadataBase>>;
+		static inline GlobalCompMap * components = nullptr;
+	}
+
+	template<typename Comp>
+	class Component {
+	private:
+		struct Metadata : detail::MetadataBase {
+			std::vector<Comp> array;
+			size_t id = detail::INVALID;
+		};
+
+	public:
+		static inline Comp & get(size_t id) { auto & meta = metadata();
+			while (id >= meta.array.size())
+				meta.array.resize(meta.array.size() * 2);
+			return meta.array[id];
+		}
+
+		static inline size_t id() {
+			static const size_t ret = metadata().id;
+			return ret;
+		}
+
+
+	private:
+		static inline Metadata & metadata() {
+			static Metadata * ret = nullptr;
+
+			if (ret == nullptr) {
+				const auto typeIndex = pmeta::type<Comp>::index;
+				const auto it = detail::components->find(typeIndex);
+				if (it != detail::components->end())
+					ret = static_cast<Metadata *>(it->second.get());
+				else {
+					auto ptr = std::make_unique<Metadata>();
+					ret = static_cast<Metadata *>(ptr.get());
+					(*detail::components)[typeIndex] = std::move(ptr);
+					ret->id = detail::components->size() - 1;
+					ret->array.resize(64);
+
+#ifndef NDEBUG
+					if constexpr (putils::is_reflectible<Comp>::value)
+						std::cout << ret->id << ' ' << Comp::get_class_name() << '\n';
+#endif
+				}
+			}
+
+			return *ret;
+		}
+	};
 }

Component.md

@@ -0,0 +1,107 @@
+#pragma once
+
+#include <bitset>
+#include <cstddef>
+#include "Component.hpp"
+#include "reflection/Reflectible.hpp"
+
+#ifndef KENGINE_COMPONENT_COUNT
+# define KENGINE_COMPONENT_COUNT 64
+#endif
+
+namespace kengine {
+	class EntityManager;
+
+	class EntityView {
+	public:
+		using ID = size_t;
+		using Mask = std::bitset<KENGINE_COMPONENT_COUNT>;
+		static constexpr auto INVALID_ID = detail::INVALID;
+
+		EntityView(ID id = INVALID_ID, Mask componentMask = 0) : id(id), componentMask(componentMask) {}
+
+		~EntityView() = default;
+		EntityView(const EntityView &) = default;
+		EntityView & operator=(const EntityView & rhs) = default;
+
+	public:
+		template<typename T> 
+		T & get() { 
+			assert("No such component" && has<T>());
+			return Component<T>::get(id);
+		}
+		template<typename T> 
+		const T & get() const {
+			assert("No such component" && has<T>());
+			return Component<T>::get(id);
+		}
+
+		template<typename T>
+		bool has() const {
+			return componentMask.test(getId<T>());
+		}
+
+		ID id;
+		Mask componentMask = 0;
+
+	protected:
+		template<typename T>
+		size_t getId() const {
+			static const auto id = Component<T>::id();
+			assert("You are using too many component types" && id < KENGINE_COMPONENT_COUNT);
+			return id;
+		}
+
+	public:
+		pmeta_get_class_name(EntityView);
+		pmeta_get_attributes(
+			pmeta_reflectible_attribute(&EntityView::id),
+			pmeta_reflectible_attribute(&EntityView::componentMask)
+		);
+		pmeta_get_methods();
+		pmeta_get_parents();
+	};
+
+	class Entity : public EntityView {
+	public:
+		Entity(ID id = detail::INVALID, Mask componentMask = 0, EntityManager * manager = nullptr) : EntityView(id, componentMask), manager(manager) {}
+		~Entity() = default;
+		Entity(const Entity &) = default;
+		Entity & operator=(const Entity & rhs) {
+			id = rhs.id;
+			componentMask = rhs.componentMask;
+			return *this;
+		}
+
+		template<typename T>
+		Entity & operator+=(T && comp) {
+			attach<T>() = FWD(comp);
+			return *this;
+		}
+
+		template<typename T>
+		T & attach();
+
+		template<typename T>
+		void detach();
+
+	private:
+		EntityManager * manager;
+	};
+}
+
+#include "EntityManager.hpp"
+
+template<typename T>
+T & kengine::Entity::attach() {
+	componentMask.set(getId<T>(), true);
+	manager->updateMask(id, componentMask);
+	return get<T>();
+}
+
+template<typename T>
+void kengine::Entity::detach() {
+	assert("No such component" && has<T>());
+	componentMask.set(getId<T>(), false);
+	manager->updateMask(id, componentMask);
+}