commit de042a580ccf19821e217c94bffd7fade82a9bb5
Author: Jorijn van der Graaf <jorijnvdgraaf@catcrafts.net>
Date:   Tue May 6 12:38:11 2025 +0200

    initial commit

diff --git a/Crafter.Component-Component.cpp b/Crafter.Component-Component.cpp
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+++ b/Crafter.Component-Component.cpp
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+module;
+
+module Crafter.Component;
+
+using namespace Crafter;
+
+Component::Component() {
+
+}
+
+Component::~Component() {
+    onDelete.Invoke();
+}
+
+void Component::AddOwner()
+{
+    refCount++;
+}
+
+void Component::RemoveOwner()
+{
+    refCount--;
+    if (refCount == 0) {
+        delete this;
+    }
+}
diff --git a/Crafter.Component-Component.cppm b/Crafter.Component-Component.cppm
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+++ b/Crafter.Component-Component.cppm
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+module;
+
+#include <cstdint>
+
+export module Crafter.Component:Component;
+
+import Crafter.Event;
+
+namespace Crafter {
+    export class Component {
+    public:
+        Event<void> onDelete;
+        std::uint32_t refCount = 0;
+        Component();
+        virtual ~Component();
+        void AddOwner();
+        void RemoveOwner();
+    };
+}
diff --git a/Crafter.Component-ComponentRef.cppm b/Crafter.Component-ComponentRef.cppm
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+++ b/Crafter.Component-ComponentRef.cppm
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+module;
+
+#include <vector>
+#include <algorithm>
+
+export module Crafter.Component:ComponentRef;
+
+import :Component;
+import Crafter.Event;
+
+namespace Crafter {
+	export template <typename T>
+	class ComponentRef {
+	public:
+		Event<T*> refChanged;
+		Event<T*> componentDeleted;
+		T* component;
+		ComponentRef() : component(nullptr) {
+
+		};
+
+		ComponentRef(T* component) {
+			SetRef(component);
+		}
+
+		virtual void SetRef(T* component) {
+			if (component != nullptr) {
+				onDeleteListener.SetEvent(&component->onDelete, [this, component]() {
+					this->componentDeleted.Invoke(component);
+				});
+			}
+			refChanged.Invoke(component);
+			this->component = component;
+		}
+	protected:
+		EventListener<void> onDeleteListener;
+	};
+
+	export template <typename T>
+	class ComponentRefOwning : public ComponentRef<T> {
+	public:
+		ComponentRefOwning() : ComponentRef<T>() {
+
+		};
+
+		ComponentRefOwning(T* component) : ComponentRef<T>(component) {
+			component->AddOwner();
+		}
+		~ComponentRefOwning() {
+			if (ComponentRef<T>::component) {
+				ComponentRef<T>::component->RemoveOwner();
+			}
+		}
+
+		void SetRef(T* component) override {
+			if (this->component != nullptr) {
+				this->component->RemoveOwner();
+			}
+
+			if (component != nullptr) {
+				ComponentRef<T>::onDeleteListener.SetEvent(&component->onDelete, [this, component]() {
+					this->componentDeleted.Invoke(component);
+				});
+				component->AddOwner();
+			}
+			this->component = component;
+		}
+	};
+
+	export template <typename T>
+	class ComponentRefVector {
+	public:
+		Event<T*> componentRemoved;
+		Event<T*> componentDeleted;
+		Event<T*> componentAdded;
+		std::vector<T*> components;
+
+		ComponentRefVector() {
+
+		}
+
+		ComponentRefVector(std::vector<T*> components) : components(components) {
+
+		}
+
+		virtual void AddComponent(T* component) {
+			componentAdded.Invoke(component);
+			components.push_back(component);
+			listeners.emplace_back(&component->onDelete, [this, component]() {
+				this->componentDeleted.Invoke(component);
+				components.erase(std::remove(components.begin(), components.end(), component), components.end());
+			});
+		}
+
+		virtual void RemoveComponent(T* component) {
+			componentRemoved.Invoke(component);
+			auto it = find(components.begin(), components.end(), component);
+			int index = it - components.begin();
+			components.erase(components.begin() + index);
+		}
+	private:
+		std::vector<EventListener<void>> listeners;
+	};
+
+	export template <typename T>
+	class ComponentRefVectorOwning : public ComponentRefVector<T> {
+	public:
+		ComponentRefVectorOwning() {
+
+		}
+
+		ComponentRefVectorOwning(std::vector<T*> components) : ComponentRefVector<T>(components) {
+
+		}
+
+		~ComponentRefVectorOwning() {
+			for (size_t i = 0; i < ComponentRefVector<T>::components.size(); i++)
+			{
+				ComponentRefVector<T>::components[i]->RemoveOwner();
+			}
+		}
+
+		void AddComponent(T* component) override {
+			ComponentRefVector<T>::AddComponent(component);
+			component->AddOwner();
+
+		}
+
+		void RemoveComponent(T* component) override {
+			ComponentRefVector<T>::RemoveComponent(component);
+			component->RemoveOwner();
+		}
+	};
+}
\ No newline at end of file
diff --git a/Crafter.Component.cppm b/Crafter.Component.cppm
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+++ b/Crafter.Component.cppm
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+export module Crafter.Component;
+
+export import :Component;
+export import :ComponentRef;
\ No newline at end of file
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diff --git a/project.json b/project.json
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+{
+    "name": "crafter-component",
+    "configurations": [
+        {
+            "name": "base",
+            "standard": "c++26",
+            "source_files": ["Crafter.Component-Component"],
+            "module_files": ["Crafter.Component","Crafter.Component-ComponentRef","Crafter.Component-Component"],
+            "additional_files": [],
+            "build_dir": "./build",
+            "output_dir": "./bin",
+            "type":"library"
+        },
+        {
+            "name": "debug",
+            "extends": ["base"],
+            "optimization_level": "0",
+            "debug":true,
+            "dependencies": [
+                {
+                    "path":"/home/jorijn/repos/Crafter/Crafter.Event/project.json",
+                    "configuration":"debug"
+                }
+            ]
+        },
+        {
+            "name": "release",
+            "extends": ["base"],
+            "optimization_level": "3",
+            "dependencies": [
+                {
+                    "path":"/home/jorijn/repos/Crafter/Crafter.Event/project.json",
+                    "configuration":"debug"
+                }
+            ]
+        }
+    ]
+}