[UNR-4795] Reset server movement data on local client possession. (#242)

Author: ImprobableNic

Game/Content/Characters/BP_SimulatedPlayerCharacter.uasset

@@ -209,3 +209,8 @@ bool AGDKCharacter::CanBeSeenFrom(const FVector& ObserverLocation, FVector& OutS
 	OutSightStrength = (float)PositiveHits / (float)NumberOfLoSChecksPerformed;
 	return PositiveHits > 0;
 }
+
+void AGDKCharacter::ClientMovementReset_Implementation()
+{
+	GetCharacterMovement()->ResetPredictionData_Server();
+}

Game/Source/GDKShooter/Private/Characters/GDKCharacter.cpp

@@ -78,6 +78,13 @@ class GDKSHOOTER_API AGDKCharacter : public ACharacter, public IGenericTeamAgent
 	UFUNCTION(BlueprintNativeEvent, BlueprintCallable)
 	void StartRagdoll();
 
+	// ----- HACKY WORKAROUND, KEEP AWAY FROM PRODUCTION CODE ----
+	// This class is used by simplayer, which locally replaces the Pawn's controller without the server's knowledge
+	// Unpossessing a character resets its movement data, so this is used to inform the server that it happened.
+	// Getting rid of this hack means adding AIController-like capabilities to the regular PlayerController.
+	UFUNCTION(BlueprintCallable, Server, Unreliable)
+	void ClientMovementReset();
+
 private:
 	UFUNCTION()
 	void DeleteSelf();