TrafficTest - Mass Traffic Plugin for UE 5.3.2 5.4

Traffic Plugin extracted from CitySample

• disabled Niagara compilation error
• fixed missing include for physics solver

Thanks to:

https://www.youtube.com/watch?v=RRWr_Hnn5Bg

https://www.youtube.com/watch?v=otdm3KhM6vs

Added:

• generate ParkingSpot and TrafficLight data from special actors (editor-only) in the current map
• removed RuleProcessor and therefore Houdini import for parking spaces and traffic lights
• upgraded to UE 5.4 codebase

Notes:

Minimum car configuration:

1. LODCollector
2. Traffic Vehicle Visualization
3. Traffic Vehicle Simulation
4. Assorted Fragments
   1. Mass Traffic Random Fraction Fragment
   2. Mass Traffic Vehicle Lights Fragment
   3. Mass Traffic Debug Fragment

Minimum intersection configuration

1. LODCollector
2. Traffic Intersection Simulation
3. Traffic Light Visualization
4. Assorted Fragments
   1. Transform Fragment
   2. Mass Traffic Intersection Fragment

Important

• MassTrafficSubsystem::ClearAllTrafficLanes() must be called when MassSpwaner::OnDespawningFinished event is fired