TweenInit.cpp

#include "TweenInit.h"
#include "TweenManager.h"
#include "DekiEngine.h"
#include "DekiLogSystem.h"

#include <cstdint>

namespace
{
constexpr size_t kNotRegistered = SIZE_MAX;
size_t s_UpdateId = kNotRegistered;
} // namespace

void DekiTween_InitSystem()
{
 if (s_UpdateId != kNotRegistered)
 return;

 // EnsureUpdatedThisFrame() rather than Update(): it is frame-guarded, so a
 // TweenComponent that also ticks the manager this frame does not advance
 // every tween twice.
 s_UpdateId = Deki::Engine::GetInstance().RegisterUpdate(
 [](uint32_t /*deltaTimeMs*/)
 { Deki::TweenManager::Instance().EnsureUpdatedThisFrame(); });

 DEKI_LOG_INTERNAL("DekiTween: tween manager hooked into the engine update");
}

void DekiTween_ShutdownSystem()
{
 if (s_UpdateId == kNotRegistered)
 return;

 // Must happen before the DLL unloads: the callback's code lives here.
 Deki::Engine::GetInstance().UnregisterUpdate(s_UpdateId);
 s_UpdateId = kNotRegistered;
 Deki::TweenManager::Instance().KillAll();
}