102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#include "EngineService.h"
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#include "Engine/Core/Log.h"
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#include "Engine/Core/Collections/Array.h"
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#include "Engine/Core/Collections/Sorting.h"
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static bool CompareEngineServices(EngineService* const& a, EngineService* const& b)
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{
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return a->Order < b->Order;
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}
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#define DEFINE_ENGINE_SERVICE_EVENT(name) \
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void EngineService::name() { } \
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void EngineService::On##name() \
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{ \
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auto& services = GetServices(); \
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for (int32 i = 0; i < services.Count(); i++) \
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services[i]->name(); \
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}
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#define DEFINE_ENGINE_SERVICE_EVENT_INVERTED(name) \
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void EngineService::name() { } \
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void EngineService::On##name() \
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{ \
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auto& services = GetServices(); \
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for (int32 i = 0; i < services.Count(); i++) \
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services[i]->name(); \
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}
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DEFINE_ENGINE_SERVICE_EVENT(FixedUpdate);
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DEFINE_ENGINE_SERVICE_EVENT(Update);
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DEFINE_ENGINE_SERVICE_EVENT(LateUpdate);
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DEFINE_ENGINE_SERVICE_EVENT(Draw);
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DEFINE_ENGINE_SERVICE_EVENT_INVERTED(BeforeExit);
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EngineService::EngineServicesArray& EngineService::GetServices()
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{
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static EngineServicesArray Services;
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return Services;
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}
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void EngineService::Sort()
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{
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auto& services = GetServices();
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Sorting::QuickSort(services.Get(), services.Count(), &CompareEngineServices);
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}
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EngineService::EngineService(const Char* name, int32 order)
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{
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Name = name;
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Order = order;
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auto& services = GetServices();
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services.Add(this);
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if (services.First()->IsInitialized)
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Sort();
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}
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bool EngineService::Init()
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{
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return false;
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}
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void EngineService::OnInit()
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{
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Sort();
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// Init services from front to back
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auto& services = GetServices();
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for (int32 i = 0; i < services.Count(); i++)
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{
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const auto service = services[i];
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LOG(Info, "Initialize {0}...", service->Name);
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service->IsInitialized = true;
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if (service->Init())
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{
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Platform::Fatal(String::Format(TEXT("Failed to initialize {0}."), service->Name));
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}
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}
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LOG(Info, "Engine services are ready!");
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}
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void EngineService::Dispose()
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{
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}
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void EngineService::OnDispose()
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{
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// Dispose services from back to front
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auto& services = GetServices();
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for (int32 i = services.Count() - 1; i >= 0; i--)
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{
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const auto service = services[i];
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if (service->IsInitialized)
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{
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service->IsInitialized = false;
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service->Dispose();
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}
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}
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}
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