A "Respawn" componet which automatically triggers a Spawner component when the last respawned entity of that spawner is destroyed

include/Engine/Core/RespawnSystem.h

@@ -0,0 +1,22 @@
+#ifndef RespawnSystem_h__
+#define RespawnSystem_h__
+
+#include "System.h"
+#include "SpawnerSystem.h"
+#include "EEntityDeleted.h"
+
+class RespawnSystem : public PureSystem
+{
+public:
+    RespawnSystem(SystemParams params);
+
+    virtual void UpdateComponent(EntityWrapper& entity, ComponentWrapper& cRespawn, double dt) override;
+
+private:
+    std::unordered_map<EntityWrapper, EntityWrapper> m_LastRespawnedEntity;
+
+    EventRelay<RespawnSystem, Events::EntityDeleted> m_EEntityDeleted;
+    bool OnEntityDeleted(const Events::EntityDeleted& e);
+};
+
+#endif

include/Engine/Core/System.h

@@ -68,7 +68,7 @@ protected:
 
     const std::string m_ComponentType;
 
-    virtual void UpdateComponent(EntityWrapper& entity, ComponentWrapper& scoreScreen, double dt) = 0;
+    virtual void UpdateComponent(EntityWrapper& entity, ComponentWrapper& cComponent, double dt) = 0;
 };
 
 class ImpureSystem : public virtual System

resources/Schema/Components.xsd

@@ -68,4 +68,5 @@
 	<xs:include schemaLocation="Components/NetworkComponent.xsd"/>
 	<xs:include schemaLocation="Components/ServerIdentity.xsd"/>
 	<xs:include schemaLocation="Components/ServerList.xsd"/>
+	<xs:include schemaLocation="Components/Respawn.xsd"/>
 </xs:schema>

resources/Schema/Components/Respawn.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Respawn xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="Respawn.xsd">
+	<Delay>0</Delay>
+	<_RespawnCountdown>0</_RespawnCountdown>
+</Respawn>

resources/Schema/Components/Respawn.xsd

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:t="types">
+	<xs:import schemaLocation="../Types.xsd" namespace="types"/>
+
+	<xs:element name="Respawn">
+		<xs:annotation>
+			<xs:documentation>Triggers a Spawner component after its last spawned entity is destroyed with an optional delay.</xs:documentation>
+		</xs:annotation>
+		<xs:complexType>
+			<xs:all>
+				<xs:element name="Delay" type="t:double" minOccurs="0"/>
+				<xs:element name="_RespawnCountdown" type="t:double" minOccurs="0"/>
+			</xs:all>
+		</xs:complexType>
+	</xs:element>
+</xs:schema>

resources/Schema/Types/Entity.xsd

@@ -71,6 +71,7 @@
 							<xs:element ref="c:NetworkComponent" minOccurs="0"/>
 							<xs:element ref="c:ServerIdentity" minOccurs="0"/>
 							<xs:element ref="c:ServerList" minOccurs="0"/>
+							<xs:element ref="c:Respawn" minOccurs="0"/>
 						</xs:all>
 					</xs:complexType>
 				</xs:element>

src/Engine/Core/RespawnSystem.cpp

@@ -0,0 +1,32 @@
+#include "Core/RespawnSystem.h"
+
+RespawnSystem::RespawnSystem(SystemParams params) 
+    : System(params)
+    , PureSystem("Respawn")
+{
+    EVENT_SUBSCRIBE_MEMBER(m_EEntityDeleted, &RespawnSystem::OnEntityDeleted);
+}
+
+void RespawnSystem::UpdateComponent(EntityWrapper& entity, ComponentWrapper& cRespawn, double dt)
+{
+    if (!entity.HasComponent("Spawner")) {
+        return;
+    }
+
+    EntityWrapper& lastRespawnedEntity = m_LastRespawnedEntity[entity];
+    if (!lastRespawnedEntity.Valid()) {
+        double& _respawnCountdown = cRespawn["_RespawnCountdown"];
+        _respawnCountdown -= dt;
+        if (_respawnCountdown <= 0) {
+            lastRespawnedEntity = SpawnerSystem::Spawn(entity, entity);
+            _respawnCountdown = cRespawn["Delay"];
+        }
+    }
+}
+
+bool RespawnSystem::OnEntityDeleted(const Events::EntityDeleted& e)
+{
+    m_LastRespawnedEntity.erase(e.DeletedEntity);
+    return true;
+}
+

src/Game/Game.cpp

@@ -40,6 +40,7 @@
 #include "Game/Systems/MainMenuSystem.h"
 #include "Game/Systems/ServerListSystem.h"
 #include "Game/Systems/StartSystem.h"
+#include "Core/RespawnSystem.h"
 #include "Rendering/TextureSprite.h"
 
 
@@ -135,6 +136,7 @@ Game::Game(int argc, char* argv[])
     m_SystemPipeline->AddSystem<HealthSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<PlayerMovementSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<SpawnerSystem>(updateOrderLevel);
+    m_SystemPipeline->AddSystem<RespawnSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<PlayerSpawnSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<AssaultWeaponBehaviour>(updateOrderLevel, m_Renderer, m_OctreeCollision);
     m_SystemPipeline->AddSystem<DefenderWeaponBehaviour>(updateOrderLevel, m_Renderer, m_OctreeCollision);