From 61e04f760a8a5e12827934fc511d1c86bab3e1ab Mon Sep 17 00:00:00 2001
From: TrueBabyChaise <tomaugier23@gmail.com>
Date: Fri, 21 May 2021 14:15:42 +0200
Subject: [PATCH] Add healthSystem

The component doesn't disable the entity anymore, the system does it by checking the component of the entity

Co-Authored-By: Benjamin HENRY <44569175+EternalRat@users.noreply.github.com>
---
 sources/Component/Health/HealthComponent.cpp |  3 +-
 sources/Component/Health/HealthComponent.hpp |  2 ++
 sources/System/Health/HealthSystem.cpp       | 25 ++++++++++++++++
 sources/System/Health/HealthSystem.hpp       | 30 ++++++++++++++++++++
 4 files changed, 58 insertions(+), 2 deletions(-)
 create mode 100644 sources/System/Health/HealthSystem.cpp
 create mode 100644 sources/System/Health/HealthSystem.hpp

diff --git a/sources/Component/Health/HealthComponent.cpp b/sources/Component/Health/HealthComponent.cpp
index a129a24e..bd3fff53 100644
--- a/sources/Component/Health/HealthComponent.cpp
+++ b/sources/Component/Health/HealthComponent.cpp
@@ -32,8 +32,7 @@ namespace BBM
 	{
 		if (damage >= this->_healthPoint) {
 			this->_healthPoint = 0;
-			this->die();
-		} else
+ 		} else
 			this->_healthPoint -= damage;
 	}
 
diff --git a/sources/Component/Health/HealthComponent.hpp b/sources/Component/Health/HealthComponent.hpp
index ecc67b12..41a8d920 100644
--- a/sources/Component/Health/HealthComponent.hpp
+++ b/sources/Component/Health/HealthComponent.hpp
@@ -45,5 +45,7 @@ namespace BBM
 
 			//! @brief A component can't be assigned
 			HealthComponent &operator=(const HealthComponent &) = delete;
+
+			friend class HealthSystem;
 	};
 }
\ No newline at end of file
diff --git a/sources/System/Health/HealthSystem.cpp b/sources/System/Health/HealthSystem.cpp
new file mode 100644
index 00000000..3b03337a
--- /dev/null
+++ b/sources/System/Health/HealthSystem.cpp
@@ -0,0 +1,25 @@
+//
+// Created by Tom Augier on 2021-05-20.
+// Edited by Benjamin Henry on 2021-05-20.
+//
+
+#include "HealthSystem.hpp"
+#include "sources/Component/Health/HealthComponent.hpp"
+#include "sources/Component/Controllable/ControllableComponent.hpp"
+#include "lib/wal/sources/Entity/Entity.hpp"
+
+namespace BBM
+{
+	const std::type_info &HealthSystem::getComponent() const
+	{
+		return typeid(HealthComponent);
+	}
+
+	void HealthSystem::onFixedUpdate(WAL::Entity &entity)
+	{
+		auto &health = entity.getComponent<HealthComponent>();
+
+		if (health._healthPoint == 0);
+			health.die();
+	}
+}
\ No newline at end of file
diff --git a/sources/System/Health/HealthSystem.hpp b/sources/System/Health/HealthSystem.hpp
new file mode 100644
index 00000000..8bf8eec5
--- /dev/null
+++ b/sources/System/Health/HealthSystem.hpp
@@ -0,0 +1,30 @@
+//
+// Created by Tom Augier on 2021-05-20.
+// Edited by Benjamin Henry on 2021-05-20.
+//
+
+#pragma once
+
+#include "lib/wal/sources/System/System.hpp"
+
+namespace BBM
+{
+	//! @brief A system to handle Health entities.
+	class HealthSystem : public WAL::System
+	{
+	public:
+		//! @inherit
+		const std::type_info &getComponent() const override;
+		//! @inherit
+		void onFixedUpdate(WAL::Entity &entity) override;
+
+		//! @brief A default constructor
+		HealthSystem() = default;
+		//! @brief A Health system is copy constructable
+		HealthSystem(const HealthSystem &) = default;
+		//! @brief A default destructor
+		~HealthSystem() override = default;
+		//! @brief A Health system is assignable.
+		HealthSystem &operator=(const HealthSystem &) = default;
+	};
+}