C++ CComponentManager类代码示例

 static void ClassInit(CComponentManager& componentManager)
 {
     componentManager.SubscribeToMessageType(MT_Destroy);
 }

	static void ClassInit(CComponentManager& componentManager)
	{
		componentManager.SubscribeToMessageType(MT_Interpolate);
		componentManager.SubscribeToMessageType(MT_RenderSubmit);
	}

void CComponentManager::Script_FlushDestroyedEntities(ScriptInterface::CxPrivate *pCxPrivate)
{
	CComponentManager* componentManager = static_cast<CComponentManager*> (pCxPrivate->pCBData);
	componentManager->FlushDestroyedComponents();
}

void CComponentManager::Script_DestroyEntity(ScriptInterface::CxPrivate* pCxPrivate, int ent)
{
	CComponentManager* componentManager = static_cast<CComponentManager*> (pCxPrivate->pCBData);

	componentManager->DestroyComponentsSoon(ent);
}

IComponent* CComponentManager::Script_QueryInterface(ScriptInterface::CxPrivate* pCxPrivate, int ent, int iid)
{
	CComponentManager* componentManager = static_cast<CComponentManager*> (pCxPrivate->pCBData);
	IComponent* component = componentManager->QueryInterface((entity_id_t)ent, iid);
	return component;
}

void CComponentManager::Script_RegisterSystemComponentType(ScriptInterface::CxPrivate* pCxPrivate, int iid, const std::string& cname, JS::HandleValue ctor)
{
	CComponentManager* componentManager = static_cast<CComponentManager*> (pCxPrivate->pCBData);
	componentManager->Script_RegisterComponentType_Common(pCxPrivate, iid, cname, ctor, false, true);
	componentManager->m_ScriptInterface.SetGlobal(cname.c_str(), ctor, componentManager->m_CurrentlyHotloading);
}

void CComponentManager::Script_RegisterComponentType_Common(ScriptInterface::CxPrivate* pCxPrivate, int iid, const std::string& cname, JS::HandleValue ctor, bool reRegister, bool systemComponent)
{
	CComponentManager* componentManager = static_cast<CComponentManager*> (pCxPrivate->pCBData);
	JSContext* cx = componentManager->m_ScriptInterface.GetContext();
	JSAutoRequest rq(cx);

	// Find the C++ component that wraps the interface
	int cidWrapper = componentManager->GetScriptWrapper(iid);
	if (cidWrapper == CID__Invalid)
	{
		componentManager->m_ScriptInterface.ReportError("Invalid interface id");
		return;
	}
	const ComponentType& ctWrapper = componentManager->m_ComponentTypesById[cidWrapper];

	bool mustReloadComponents = false; // for hotloading

	ComponentTypeId cid = componentManager->LookupCID(cname);
	if (cid == CID__Invalid)
	{
		if (reRegister)
		{
			std::string msg("ReRegistering component type that was not registered before '"+cname+"'");
			componentManager->m_ScriptInterface.ReportError(msg.c_str());
			return;
		}
		// Allocate a new cid number
		cid = componentManager->m_NextScriptComponentTypeId++;
		componentManager->m_ComponentTypeIdsByName[cname] = cid;
		if (systemComponent)
			componentManager->MarkScriptedComponentForSystemEntity(cid);
	}
	else
	{
		// Component type is already loaded, so do hotloading:

		if (!componentManager->m_CurrentlyHotloading && !reRegister)
		{
			std::string msg("Registering component type with already-registered name '"+cname+"'");
			componentManager->m_ScriptInterface.ReportError(msg.c_str());
			return;
		}

		const ComponentType& ctPrevious = componentManager->m_ComponentTypesById[cid];

		// We can only replace scripted component types, not native ones
		if (ctPrevious.type != CT_Script)
		{
			std::string msg("Loading script component type with same name '"+cname+"' as native component");
			componentManager->m_ScriptInterface.ReportError(msg.c_str());
			return;
		}

		// We don't support changing the IID of a component type (it would require fiddling
		// around with m_ComponentsByInterface and being careful to guarantee uniqueness per entity)
		if (ctPrevious.iid != iid)
		{
			// ...though it only matters if any components exist with this type
			if (!componentManager->m_ComponentsByTypeId[cid].empty())
			{
				componentManager->m_ScriptInterface.ReportError("Hotloading script component type mustn't change interface ID");
				return;
			}
		}

		// Remove the old component type's message subscriptions
		std::map<MessageTypeId, std::vector<ComponentTypeId> >::iterator it;
		for (it = componentManager->m_LocalMessageSubscriptions.begin(); it != componentManager->m_LocalMessageSubscriptions.end(); ++it)
		{
			std::vector<ComponentTypeId>& types = it->second;
			std::vector<ComponentTypeId>::iterator ctit = find(types.begin(), types.end(), cid);
			if (ctit != types.end())
				types.erase(ctit);
		}
		for (it = componentManager->m_GlobalMessageSubscriptions.begin(); it != componentManager->m_GlobalMessageSubscriptions.end(); ++it)
		{
			std::vector<ComponentTypeId>& types = it->second;
			std::vector<ComponentTypeId>::iterator ctit = find(types.begin(), types.end(), cid);
			if (ctit != types.end())
				types.erase(ctit);
		}

		mustReloadComponents = true;
	}

	std::string schema = "<empty/>";
	{
		JS::RootedValue prototype(cx);
		if (componentManager->m_ScriptInterface.GetProperty(ctor, "prototype", &prototype) &&
			componentManager->m_ScriptInterface.HasProperty(prototype, "Schema"))
		{
			componentManager->m_ScriptInterface.GetProperty(prototype, "Schema", schema);
		}
	}

	// Construct a new ComponentType, using the wrapper's alloc functions
	ComponentType ct(
		CT_Script,
		iid,
		ctWrapper.alloc,
//.........这里部分代码省略.........