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unitysamples / LyraStarterGame /Source /LyraGame /Input /LyraPlayerInput.cpp
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// Copyright Epic Games, Inc. All Rights Reserved.
#include "LyraPlayerInput.h"
#include "Performance/LatencyMarkerModule.h"
#include "Settings/LyraSettingsLocal.h"
ULyraPlayerInput::ULyraPlayerInput()
: Super()
{
// Don't bind to any settings delegates on the CDO, otherwise there would be a constant bound listener
// and it wouldn't even do anything because it doesn't get ticked/process input
if (HasAnyFlags(RF_ClassDefaultObject | RF_ArchetypeObject))
{
return;
}
BindToLatencyMarkerSettingChange();
}
ULyraPlayerInput::~ULyraPlayerInput()
{
UnbindLatencyMarkerSettingChangeListener();
}
bool ULyraPlayerInput::InputKey(const FInputKeyEventArgs& Params)
{
const bool bResult = Super::InputKey(Params);
// Note: Since Lyra is only going to support the "Reflex" plugin to handle latency markers,
// we could #if PLATFORM_DESKTOP this away to save on other platforms. However, for the sake
// of extensibility for this same project we will not do that.
ProcessInputEventForLatencyMarker(Params);
return bResult;
}
void ULyraPlayerInput::ProcessInputEventForLatencyMarker(const FInputKeyEventArgs& Params)
{
if (!bShouldTriggerLatencyFlash)
{
return;
}
// Flash the latency marker on left mouse down
if (Params.Key == EKeys::LeftMouseButton)
{
TArray<ILatencyMarkerModule*> LatencyMarkerModules = IModularFeatures::Get().GetModularFeatureImplementations<ILatencyMarkerModule>(ILatencyMarkerModule::GetModularFeatureName());
for (ILatencyMarkerModule* LatencyMarkerModule : LatencyMarkerModules)
{
// TRIGGER_FLASH is 7
LatencyMarkerModule->SetCustomLatencyMarker(7, GFrameCounter);
}
}
}
void ULyraPlayerInput::BindToLatencyMarkerSettingChange()
{
if (!ULyraSettingsLocal::DoesPlatformSupportLatencyMarkers())
{
return;
}
ULyraSettingsLocal* Settings = ULyraSettingsLocal::Get();
if (!Settings)
{
return;
}
Settings->OnLatencyFlashInidicatorSettingsChangedEvent().AddUObject(this, &ThisClass::HandleLatencyMarkerSettingChanged);
// Initalize the settings and make sure that the input latency modules are enabled
HandleLatencyMarkerSettingChanged();
}
void ULyraPlayerInput::UnbindLatencyMarkerSettingChangeListener()
{
ULyraSettingsLocal* Settings = ULyraSettingsLocal::Get();
if (!Settings)
{
return;
}
Settings->OnLatencyFlashInidicatorSettingsChangedEvent().RemoveAll(this);
}
void ULyraPlayerInput::HandleLatencyMarkerSettingChanged()
{
// Make sure that we only ever get this callback on platforms which support latency markers
ensure(ULyraSettingsLocal::DoesPlatformSupportLatencyMarkers());
const ULyraSettingsLocal* Settings = ULyraSettingsLocal::Get();
if (!Settings)
{
return;
}
// Enable or disable the latency flash on all the marker modules according to the settings change
bShouldTriggerLatencyFlash = Settings->GetEnableLatencyFlashIndicators();
TArray<ILatencyMarkerModule*> LatencyMarkerModules = IModularFeatures::Get().GetModularFeatureImplementations<ILatencyMarkerModule>(ILatencyMarkerModule::GetModularFeatureName());
for (ILatencyMarkerModule* LatencyMarkerModule : LatencyMarkerModules)
{
LatencyMarkerModule->SetFlashIndicatorEnabled(bShouldTriggerLatencyFlash);
}
}