Initial Agrarian Unreal project

Source/AgrarianGame/AgrarianGameState.cpp

@@ -0,0 +1,80 @@
+// Copyright Pacificao. All Rights Reserved.
+
+#include "AgrarianGameState.h"
+#include "Net/UnrealNetwork.h"
+
+AAgrarianGameState::AAgrarianGameState()
+{
+	PrimaryActorTick.bCanEverTick = true;
+	bReplicates = true;
+}
+
+void AAgrarianGameState::Tick(float DeltaSeconds)
+{
+	Super::Tick(DeltaSeconds);
+
+	if (!HasAuthority())
+	{
+		return;
+	}
+
+	WorldHours += (DeltaSeconds / 60.0f) * GameHoursPerRealMinute;
+	while (WorldHours >= 24.0f)
+	{
+		WorldHours -= 24.0f;
+	}
+
+	UpdateAmbientTemperature();
+}
+
+void AAgrarianGameState::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
+{
+	Super::GetLifetimeReplicatedProps(OutLifetimeProps);
+	DOREPLIFETIME(AAgrarianGameState, WorldHours);
+	DOREPLIFETIME(AAgrarianGameState, Weather);
+	DOREPLIFETIME(AAgrarianGameState, AmbientTemperatureC);
+}
+
+bool AAgrarianGameState::IsNight() const
+{
+	return WorldHours < 6.0f || WorldHours > 20.0f;
+}
+
+void AAgrarianGameState::SetWeather(EAgrarianWeatherType NewWeather)
+{
+	if (HasAuthority())
+	{
+		Weather = NewWeather;
+		UpdateAmbientTemperature();
+		OnRep_Weather();
+	}
+}
+
+void AAgrarianGameState::OnRep_Weather()
+{
+	UpdateAmbientTemperature();
+}
+
+void AAgrarianGameState::UpdateAmbientTemperature()
+{
+	const float DayWarmth = FMath::Sin((WorldHours / 24.0f) * 2.0f * PI - (PI * 0.5f)) * 8.0f;
+	float WeatherModifier = 0.0f;
+
+	switch (Weather)
+	{
+	case EAgrarianWeatherType::Rain:
+		WeatherModifier = -3.0f;
+		break;
+	case EAgrarianWeatherType::ColdWind:
+		WeatherModifier = -8.0f;
+		break;
+	case EAgrarianWeatherType::Storm:
+		WeatherModifier = -5.0f;
+		break;
+	default:
+		WeatherModifier = 0.0f;
+		break;
+	}
+
+	AmbientTemperatureC = 10.0f + DayWarmth + WeatherModifier;
+}